Fix property tests

Fixes #887

.cirrus.yml

@@ -1,5 +1,5 @@
 freebsd_instance:
-  image_family: freebsd-13-1
+  image_family: freebsd-13-2
 
 build_task:
   name: build
@@ -16,7 +16,9 @@ build_task:
     AWS_ACCESS_KEY_ID: ENCRYPTED[6ed6287e2dd78ab5f84b22232c5245834ab042bd8ba443883aaf4b4d1ecc0481add1fdfad5ae6f6a8cfb418e6f19b2fc]
     AWS_SECRET_ACCESS_KEY: ENCRYPTED[16f3cda2954c7cee99444e6788eb5997382aa4ce1477e7523fef2586077541f43b5c816156961fc6b4677259679875a7]
     S3_HOST: ENCRYPTED[ce961780a33159f7d1d8046956b5ac6ebc3bfc8149428e5f538576cda51d9f3d0c35b79cdd1e325793639ff6e31f889d]
-  install_script: pkg install -y ghc hs-cabal-install git bash misc/compat10x misc/compat11x misc/compat12x gmake llvm14
+  install_script:
+    - sed -i.bak -e 's/quarterly/latest/' /etc/pkg/FreeBSD.conf
+    - pkg install -y ghc hs-cabal-install git bash misc/compat10x misc/compat11x misc/compat12x gmake llvm14
   script:
     - tzsetup Etc/GMT
     - adjkerntz -a

.editorconfig

@@ -0,0 +1,11 @@
+root = true
+
+[*]
+end_of_line = LF
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.hs]
+indent_style = space
+indent_size = 2
+max_line_length = 80

.github/scripts/build.sh

@@ -27,9 +27,11 @@ build_with_cache --project-file=cabal.project.release -w "${GHC}" --enable-tests
 mkdir -p out
 binary=$(cabal --project-file=cabal.project.release list-bin ghcup)
 binary_test=$(cabal --project-file=cabal.project.release list-bin ghcup-test)
+binary_opttest=$(cabal --project-file=cabal.project.release list-bin ghcup-optparse-test)
 ver=$("${binary}" --numeric-version)
 strip_binary "${binary}"
 cp "${binary}" "out/${ARTIFACT}-${ver}${ext}"
 cp "${binary_test}" "out/test-${ARTIFACT}-${ver}${ext}"
+cp "${binary_opttest}" "out/test-optparse-${ARTIFACT}-${ver}${ext}"
 cp ./dist-newstyle/cache/plan.json "out/${ARTIFACT}.plan.json"
 

.github/scripts/cabal-cache.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+case "$(uname -s)" in
+	MSYS_*|MINGW*)
+		ext=".exe"
+		;;
+	*)
+		ext=""
+	   ;;
+esac
+
+echo "cabal-cache disabled (CABAL_CACHE_DISABLE set)"
+

.github/scripts/common.sh

@@ -15,7 +15,7 @@ sync_from() {
 		cabal_store_path="$(dirname "$(cabal help user-config | tail -n 1 | xargs)")/store"
 	fi
 
-	cabal-cache sync-from-archive \
+	cabal-cache.sh sync-from-archive \
 		--host-name-override=${S3_HOST} \
 		--host-port-override=443 \
 		--host-ssl-override=True \
@@ -29,7 +29,7 @@ sync_to() {
 		cabal_store_path="$(dirname "$(cabal help user-config | tail -n 1 | xargs)")/store"
 	fi
 
-	cabal-cache sync-to-archive \
+	cabal-cache.sh sync-to-archive \
 		--host-name-override=${S3_HOST} \
 		--host-port-override=443 \
 		--host-ssl-override=True \
@@ -115,6 +115,10 @@ download_cabal_cache() {
 		mv "cabal-cache${exe}" "${dest}${exe}"
 		chmod +x "${dest}${exe}"
 	fi
+
+	# install shell wrapper
+	cp "${CI_PROJECT_DIR}"/.github/scripts/cabal-cache.sh "$HOME"/.local/bin/
+	chmod +x "$HOME"/.local/bin/cabal-cache.sh
     )
 }
 

.github/scripts/cross.sh

@@ -0,0 +1,74 @@
+#!/usr/bin/env bash
+
+set -ex
+
+. .github/scripts/common.sh
+
+run() {
+    "$@"
+}
+
+if [ "${OS}" = "Windows" ] ; then
+	GHCUP_DIR="${GHCUP_INSTALL_BASE_PREFIX}"/ghcup
+else
+	GHCUP_DIR="${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup
+fi
+
+git_describe
+
+rm -rf "${GHCUP_DIR}"
+mkdir -p "${GHCUP_BIN}"
+
+cp "out/${ARTIFACT}"-* "$GHCUP_BIN/ghcup${ext}"
+cp "out/test-${ARTIFACT}"-* "ghcup-test${ext}"
+chmod +x "$GHCUP_BIN/ghcup${ext}"
+chmod +x "ghcup-test${ext}"
+
+"$GHCUP_BIN/ghcup${ext}" --version
+eghcup --version
+sha_sum "$GHCUP_BIN/ghcup${ext}"
+sha_sum "$(raw_eghcup --offline whereis ghcup)"
+
+
+### cross build
+
+eghcup --numeric-version
+
+eghcup install ghc "${GHC_VER}"
+eghcup set ghc "${GHC_VER}"
+eghcup install cabal "${CABAL_VER}"
+
+cabal --version
+
+eghcup debug-info
+
+ecabal update
+
+"${WRAPPER}" "$GHCUP_BIN/ghcup${ext}" -c -s "file://$CI_PROJECT_DIR/data/metadata/ghcup-${JSON_VERSION}.yaml" -v \
+	compile ghc \
+	$(if [ -n "${HADRIAN_FLAVOUR}" ] ; then printf "%s" "--flavour=${HADRIAN_FLAVOUR}" ; else true ; fi) \
+	-j "$(nproc)" \
+	-v "${GHC_TARGET_VERSION}" \
+	-b "${GHC_VER}" \
+	-x "${CROSS}" \
+	-- ${BUILD_CONF_ARGS}
+eghcup set ghc "${CROSS}-${GHC_TARGET_VERSION}"
+
+[ "$($(eghcup whereis ghc "${CROSS}-${GHC_TARGET_VERSION}") --numeric-version)" = "${GHC_TARGET_VERSION}" ]
+
+# test that doing fishy symlinks into GHCup dir doesn't cause weird stuff on 'ghcup nuke'
+mkdir no_nuke/
+mkdir no_nuke/bar
+echo 'foo' > no_nuke/file
+echo 'bar' > no_nuke/bar/file
+ln -s "$CI_PROJECT_DIR"/no_nuke/ "${GHCUP_DIR}"/cache/no_nuke
+ln -s "$CI_PROJECT_DIR"/no_nuke/ "${GHCUP_DIR}"/logs/no_nuke
+
+# nuke
+eghcup nuke
+[ ! -e "${GHCUP_DIR}" ]
+
+# make sure nuke doesn't resolve symlinks
+[ -e "$CI_PROJECT_DIR"/no_nuke/file ]
+[ -e "$CI_PROJECT_DIR"/no_nuke/bar/file ]
+

.github/scripts/test.sh

@@ -18,8 +18,10 @@ mkdir -p "${GHCUP_BIN}"
 
 cp "out/${ARTIFACT}"-* "$GHCUP_BIN/ghcup${ext}"
 cp "out/test-${ARTIFACT}"-* "ghcup-test${ext}"
+cp "out/test-optparse-${ARTIFACT}"-* "ghcup-test-optparse${ext}"
 chmod +x "$GHCUP_BIN/ghcup${ext}"
 chmod +x "ghcup-test${ext}"
+chmod +x "ghcup-test-optparse${ext}"
 
 "$GHCUP_BIN/ghcup${ext}" --version
 eghcup --version
@@ -29,7 +31,8 @@ sha_sum "$(raw_eghcup --offline whereis ghcup)"
 ### Haskell test suite
 
 ./ghcup-test${ext}
-rm ghcup-test${ext}
+./ghcup-test-optparse${ext}
+rm ghcup-test${ext} ghcup-test-optparse${ext}
 
 ### manual cli based testing
 

.github/workflows/bootstrap.yaml

@@ -25,7 +25,7 @@ jobs:
         include:
           - os: ubuntu-latest
             DISTRO: Ubuntu
-          - os: macOS-10.15
+          - os: macOS-11
             DISTRO: na
           - os: windows-latest
             DISTRO: na

.github/workflows/cross.yaml

@@ -0,0 +1,140 @@
+name: Test cross bindists
+
+on:
+  push:
+    branches:
+      - master
+    tags:
+      - 'v*'
+  pull_request:
+    branches:
+      - master
+  schedule:
+    - cron: '0 2 * * *'
+
+env:
+  CABAL_CACHE_DISABLE: ${{ vars.CABAL_CACHE_DISABLE }}
+  CABAL_CACHE_NONFATAL: yes
+
+jobs:
+  build:
+    name: Build linux binary
+    runs-on: ubuntu-latest
+    env:
+      CABAL_VER: 3.10.1.0
+      JSON_VERSION: "0.0.7"
+      AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+      AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
+      S3_HOST: ${{ secrets.S3_HOST }}
+      ARTIFACT: "x86_64-linux-ghcup"
+      GHC_VER: 8.10.7
+      ARCH: 64
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          submodules: 'true'
+
+      - name: Run build
+        uses: docker://hasufell/alpine-haskell:3.12
+        with:
+          args: sh .github/scripts/build.sh
+        env:
+          ARTIFACT: ${{ env.ARTIFACT }}
+          ARCH: ${{ env.ARCH }}
+          GHC_VER: ${{ env.GHC_VER }}
+          DISTRO: Alpine
+          AWS_SECRET_ACCESS_KEY: ${{ env.AWS_SECRET_ACCESS_KEY }}
+          AWS_ACCESS_KEY_ID: ${{ env.AWS_ACCESS_KEY_ID }}
+          S3_HOST: ${{ env.S3_HOST }}
+
+      - if: always()
+        name: Upload artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: artifacts
+          path: |
+            ./out/*
+
+  test-cross-linux:
+    name: Test linux cross
+    needs: "build"
+    runs-on: [self-hosted, Linux, X64]
+    container:
+      image: registry.gitlab.haskell.org/ghc/ci-images/x86_64-linux-deb10:8d0224e6b2a08157649651e69302380b2bd24e11
+      options: --user root
+      env:
+        CABAL_VER: 3.6.2.0
+        BUILD_CONF_ARGS: "--enable-unregisterised"
+        HADRIAN_FLAVOUR: ""
+        JSON_VERSION: "0.0.7"
+        GHC_VER: 8.10.6
+        GHC_TARGET_VERSION: "8.10.7"
+        ARCH: 64
+        DISTRO: Debian
+        ARTIFACT: "x86_64-linux-ghcup"
+        CROSS: "arm-linux-gnueabihf"
+        WRAPPER: "run"
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          submodules: 'true'
+
+      - uses: actions/download-artifact@v3
+        with:
+          name: artifacts
+          path: ./out
+
+      - name: Run test (64 bit linux)
+        run: |
+          sudo apt-get update -y
+          sudo apt-get install -y libnuma-dev zlib1g-dev libgmp-dev libgmp10 libssl-dev liblzma-dev libbz2-dev git wget lsb-release software-properties-common gnupg2 apt-transport-https gcc autoconf automake build-essential curl gzip
+          sudo apt-get install -y gcc-arm-linux-gnueabihf
+          sudo dpkg --add-architecture armhf
+          sudo apt-get update -y
+          sudo apt-get install -y libncurses-dev:armhf
+          sh .github/scripts/cross.sh
+
+  test-cross-js:
+    name: Test GHC JS cross
+    needs: "build"
+    runs-on: [self-hosted, Linux, X64]
+    container:
+      image: registry.gitlab.haskell.org/ghc/ci-images/x86_64-linux-deb10:8d0224e6b2a08157649651e69302380b2bd24e11
+      options: --user root
+      env:
+        CABAL_VER: 3.6.2.0
+        BUILD_CONF_ARGS: ""
+        HADRIAN_FLAVOUR: "default+native_bignum"
+        JSON_VERSION: "0.0.7"
+        GHC_VER: 9.6.2
+        GHC_TARGET_VERSION: "9.6.2"
+        ARCH: 64
+        DISTRO: Debian
+        ARTIFACT: "x86_64-linux-ghcup"
+        CROSS: "javascript-unknown-ghcjs"
+        WRAPPER: "emconfigure"
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          submodules: 'true'
+
+      - uses: actions/download-artifact@v3
+        with:
+          name: artifacts
+          path: ./out
+
+      - name: Run test (64 bit linux)
+        run: |
+          sudo apt-get update -y
+          sudo apt-get install -y libnuma-dev zlib1g-dev libgmp-dev libgmp10 libssl-dev liblzma-dev libbz2-dev git wget lsb-release software-properties-common gnupg2 apt-transport-https gcc autoconf automake build-essential curl gzip
+          git clone https://github.com/emscripten-core/emsdk.git
+          cd emsdk
+          ./emsdk install latest
+          ./emsdk activate latest
+          . ./emsdk_env.sh
+          cd ..
+          bash .github/scripts/cross.sh
+

.github/workflows/docker.yaml

@@ -53,7 +53,7 @@ jobs:
           platforms: linux/amd64
 
   docker-arm32:
-    runs-on: [self-hosted, Linux, ARM64, aarch32-linux]
+    runs-on: [self-hosted, Linux, ARM64]
     steps:
       - uses: docker://arm64v8/ubuntu:focal
         name: Cleanup (aarch64 linux)
@@ -85,7 +85,7 @@ jobs:
         with:
           context: ./docker/arm32v7/focal
           push: true
-          tags: hasufell/arm32v7-debian-haskell:10
+          tags: hasufell/arm32v7-ubuntu-haskell:focal
           platforms: linux/arm
 
   docker-aarch:
@@ -121,5 +121,5 @@ jobs:
         with:
           context: ./docker/arm64v8/focal
           push: true
-          tags: hasufell/arm64v8-debian-haskell:10
+          tags: hasufell/arm64v8-ubuntu-haskell:focal
           platforms: linux/arm64

.github/workflows/release.yaml

@@ -12,12 +12,16 @@ on:
   schedule:
     - cron: '0 2 * * *'
 
+env:
+  CABAL_CACHE_DISABLE: ${{ vars.CABAL_CACHE_DISABLE }}
+  CABAL_CACHE_NONFATAL: yes
+
 jobs:
   build-linux:
     name: Build linux binary
     runs-on: ${{ matrix.os }}
     env:
-      CABAL_VER: 3.8.1.0
+      CABAL_VER: 3.10.1.0
       JSON_VERSION: "0.0.7"
       AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
       AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
@@ -81,7 +85,7 @@ jobs:
     name: Build ARM binary
     runs-on: ${{ matrix.os }}
     env:
-      CABAL_VER: 3.8.1.0
+      CABAL_VER: 3.10.1.0
       JSON_VERSION: "0.0.7"
       AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
       AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
@@ -90,7 +94,7 @@ jobs:
       fail-fast: true
       matrix:
         include:
-          - os: [self-hosted, Linux, ARM64, aarch32-linux]
+          - os: [self-hosted, Linux, ARM64]
             ARTIFACT: "armv7-linux-ghcup"
             GHC_VER: 9.2.2
             ARCH: ARM
@@ -154,7 +158,7 @@ jobs:
     name: Build binary (Mac/Win)
     runs-on: ${{ matrix.os }}
     env:
-      CABAL_VER: 3.8.1.0
+      CABAL_VER: 3.10.1.0
       MACOSX_DEPLOYMENT_TARGET: 10.13
       JSON_VERSION: "0.0.7"
       AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
@@ -168,7 +172,7 @@ jobs:
             ARTIFACT: "aarch64-apple-darwin-ghcup"
             GHC_VER: 9.2.6
             ARCH: ARM64
-          - os: macOS-10.15
+          - os: macOS-11
             ARTIFACT: "x86_64-apple-darwin-ghcup"
             GHC_VER: 9.2.6
             ARCH: 64
@@ -247,7 +251,7 @@ jobs:
     needs: "build-linux"
     runs-on: ${{ matrix.os }}
     env:
-      CABAL_VER: 3.8.1.0
+      CABAL_VER: 3.10.1.0
       JSON_VERSION: "0.0.7"
     strategy:
       matrix:
@@ -325,12 +329,12 @@ jobs:
     needs: "build-arm"
     runs-on: ${{ matrix.os }}
     env:
-      CABAL_VER: 3.8.1.0
+      CABAL_VER: 3.10.1.0
       JSON_VERSION: "0.0.7"
     strategy:
       matrix:
         include:
-          - os: [self-hosted, Linux, ARM64, aarch32-linux]
+          - os: [self-hosted, Linux, ARM64]
             ARTIFACT: "armv7-linux-ghcup"
             GHC_VER: 9.2.2
             ARCH: ARM
@@ -392,7 +396,7 @@ jobs:
     needs: "build-macwin"
     runs-on: ${{ matrix.os }}
     env:
-      CABAL_VER: 3.8.1.0
+      CABAL_VER: 3.10.1.0
       MACOSX_DEPLOYMENT_TARGET: 10.13
       JSON_VERSION: "0.0.7"
     strategy:
@@ -403,7 +407,7 @@ jobs:
             GHC_VER: 9.2.6
             ARCH: ARM64
             DISTRO: na
-          - os: macOS-10.15
+          - os: macOS-11
             ARTIFACT: "x86_64-apple-darwin-ghcup"
             GHC_VER: 9.2.6
             ARCH: 64

CHANGELOG.md

@@ -1,5 +1,18 @@
 # Revision history for ghcup
 
+## 0.1.19.5 -- ????-?-??
+
+* support JS cross compilers wrt [#838](https://github.com/haskell/ghcup-hs/issues/838)
+
+## 0.1.19.4 -- 2023-7-02
+
+* fix missing TUI for aarch64 linux binaries
+
+## 0.1.19.3 -- 2023-6-29
+
+* Implement support for nightlies, wrt [#824](https://github.com/haskell/ghcup-hs/issues/824)
+* Fix GC with XDG dirs, fixes [#810](https://github.com/haskell/ghcup-hs/issues/810)
+
 ## 0.1.19.2 -- 2023-2-24
 
 * Follow-up fix for JFS/ReiserFS and other filesystem that don't support `d_type`, fixes [#787](https://github.com/haskell/ghcup-hs/issues/787)

app/ghcup/BrickMain.hs

@@ -45,7 +45,7 @@ import           Data.IORef
 import           Data.Vector                    ( Vector
                                                 , (!?)
                                                 )
-import           Data.Versions           hiding ( str )
+import           Data.Versions
 import           Haskus.Utils.Variant.Excepts
 import           Prelude                 hiding ( appendFile )
 import           System.FilePath
@@ -73,8 +73,8 @@ data BrickData = BrickData
   deriving Show
 
 data BrickSettings = BrickSettings
-  { showAllVersions :: Bool
-  , showAllTools    :: Bool
+  { showAllVersions    :: Bool
+  , showAllTools       :: Bool
   }
   deriving Show
 
@@ -156,10 +156,10 @@ ui dimAttrs BrickState{ appSettings = as@BrickSettings{}, ..}
       <+> padLeft (Pad 1) (minHSize 25 $ str "Tags")
       <+> padLeft (Pad 5) (str "Notes")
   renderList' bis@BrickInternalState{..} =
-    let getMinLength = length . intercalate "," . fmap tagToString
-        minLength = V.maximum $ V.map (getMinLength . lTag) clr
-    in withDefAttr listAttr . drawListElements (renderItem minLength) True $ bis
-  renderItem minTagSize _ b listResult@ListResult{lTag = lTag', ..} =
+    let minTagSize = V.maximum $ V.map (length . intercalate "," . fmap tagToString . lTag) clr
+        minVerSize = V.maximum $ V.map (\ListResult{..} -> T.length $ tVerToText (GHCTargetVersion lCross lVer)) clr
+    in withDefAttr listAttr . drawListElements (renderItem minTagSize minVerSize) True $ bis
+  renderItem minTagSize minVerSize _ b listResult@ListResult{lTag = lTag', ..} =
     let marks = if
           | lSet       -> (withAttr (attrName "set") $ str "✔✔")
           | lInstalled -> (withAttr (attrName "installed") $ str "✓ ")
@@ -184,7 +184,7 @@ ui dimAttrs BrickState{ appSettings = as@BrickSettings{}, ..}
                ( minHSize 6
                  (printTool lTool)
                )
-          <+> minHSize 15 (str ver)
+          <+> minHSize minVerSize (str ver)
           <+> (let l = catMaybes . fmap printTag $ sort lTag'
                in  padLeft (Pad 1) $ minHSize minTagSize $ if null l
                      then emptyWidget
@@ -202,9 +202,11 @@ ui dimAttrs BrickState{ appSettings = as@BrickSettings{}, ..}
   printTag Recommended    = Just $ withAttr (attrName "recommended") $ str "recommended"
   printTag Latest         = Just $ withAttr (attrName "latest") $ str "latest"
   printTag Prerelease     = Just $ withAttr (attrName "prerelease") $ str "prerelease"
+  printTag Nightly        = Just $ withAttr (attrName "nightly") $ str "nightly"
   printTag (Base pvp'')   = Just $ str ("base-" ++ T.unpack (prettyPVP pvp''))
   printTag Old            = Nothing
   printTag LatestPrerelease = Just $ withAttr (attrName "latest-prerelease") $ str "latest-prerelease"
+  printTag LatestNightly    = Just $ withAttr (attrName "latest-nightly") $ str "latest-nightly"
   printTag (UnknownTag t) = Just $ str t
 
   printTool Cabal = str "cabal"
@@ -216,8 +218,10 @@ ui dimAttrs BrickState{ appSettings = as@BrickSettings{}, ..}
   printNotes ListResult {..} =
     (if hlsPowered then [withAttr (attrName "hls-powered") $ str "hls-powered"] else mempty
       )
-      ++ (if fromSrc then [withAttr (attrName "compiled") $ str "compiled"] else mempty)
       ++ (if lStray then [withAttr (attrName "stray") $ str "stray"] else mempty)
+      ++ (case lReleaseDay of
+            Nothing -> mempty
+            Just d  -> [withAttr (attrName "day") $ str (show d)])
 
   -- | Draws the list elements.
   --
@@ -272,19 +276,22 @@ app attrs dimAttrs =
 defaultAttributes :: Bool -> AttrMap
 defaultAttributes no_color = attrMap
   Vty.defAttr
-  [ (attrName "active"       , Vty.defAttr `withBackColor` Vty.blue)
-  , (attrName "not-installed", Vty.defAttr `withForeColor` Vty.red)
-  , (attrName "set"          , Vty.defAttr `withForeColor` Vty.green)
-  , (attrName "installed"    , Vty.defAttr `withForeColor` Vty.green)
-  , (attrName "recommended"  , Vty.defAttr `withForeColor` Vty.green)
-  , (attrName "hls-powered"  , Vty.defAttr `withForeColor` Vty.green)
-  , (attrName "latest"       , Vty.defAttr `withForeColor` Vty.yellow)
+  [ (attrName "active"            , Vty.defAttr `withBackColor` Vty.blue)
+  , (attrName "not-installed"     , Vty.defAttr `withForeColor` Vty.red)
+  , (attrName "set"               , Vty.defAttr `withForeColor` Vty.green)
+  , (attrName "installed"         , Vty.defAttr `withForeColor` Vty.green)
+  , (attrName "recommended"       , Vty.defAttr `withForeColor` Vty.green)
+  , (attrName "hls-powered"       , Vty.defAttr `withForeColor` Vty.green)
+  , (attrName "latest"            , Vty.defAttr `withForeColor` Vty.yellow)
   , (attrName "latest-prerelease" , Vty.defAttr `withForeColor` Vty.red)
-  , (attrName "prerelease"   , Vty.defAttr `withForeColor` Vty.red)
-  , (attrName "compiled"     , Vty.defAttr `withForeColor` Vty.blue)
-  , (attrName "stray"        , Vty.defAttr `withForeColor` Vty.blue)
-  , (attrName "help"         , Vty.defAttr `withStyle`     Vty.italic)
-  , (attrName "hooray"       , Vty.defAttr `withForeColor` Vty.brightWhite)
+  , (attrName "latest-nightly"    , Vty.defAttr `withForeColor` Vty.red)
+  , (attrName "prerelease"        , Vty.defAttr `withForeColor` Vty.red)
+  , (attrName "nightly"           , Vty.defAttr `withForeColor` Vty.red)
+  , (attrName "compiled"          , Vty.defAttr `withForeColor` Vty.blue)
+  , (attrName "stray"             , Vty.defAttr `withForeColor` Vty.blue)
+  , (attrName "day"               , Vty.defAttr `withForeColor` Vty.blue)
+  , (attrName "help"              , Vty.defAttr `withStyle`     Vty.italic)
+  , (attrName "hooray"            , Vty.defAttr `withForeColor` Vty.brightWhite)
   ]
   where
     withForeColor | no_color  = const
@@ -411,13 +418,17 @@ filterVisible :: Bool -> Bool -> ListResult -> Bool
 filterVisible v t e | lInstalled e = True
                     | v
                     , not t
+                    , Nightly `notElem` lTag e
                     , lTool e `notElem` hiddenTools = True
                     | not v
                     , t
-                    , Old `notElem` lTag e = True
+                    , Old `notElem` lTag e
+                    , Nightly `notElem` lTag e = True
                     | v
+                    , Nightly `notElem` lTag e
                     , t = True
-                    | otherwise = (Old `notElem` lTag e) &&
+                    | otherwise = (Old `notElem` lTag e)       &&
+                                  (Nightly `notElem` lTag e)   &&
                                   (lTool e `notElem` hiddenTools)
 
 
@@ -460,19 +471,19 @@ install' _ (_, ListResult {..}) = do
       dirs <- lift getDirs
       case lTool of
         GHC   -> do
-          let vi = getVersionInfo lVer GHC dls
-          liftE $ installGHCBin lVer GHCupInternal False [] $> (vi, dirs, ce)
+          let vi = getVersionInfo (GHCTargetVersion lCross lVer) GHC dls
+          liftE $ installGHCBin (GHCTargetVersion lCross lVer) GHCupInternal False [] $> (vi, dirs, ce)
         Cabal -> do
-          let vi = getVersionInfo lVer Cabal dls
+          let vi = getVersionInfo (GHCTargetVersion lCross lVer) Cabal dls
           liftE $ installCabalBin lVer GHCupInternal False $> (vi, dirs, ce)
         GHCup -> do
           let vi = snd <$> getLatest dls GHCup
           liftE $ upgradeGHCup Nothing False False $> (vi, dirs, ce)
         HLS   -> do
-          let vi = getVersionInfo lVer HLS dls
+          let vi = getVersionInfo (GHCTargetVersion lCross lVer) HLS dls
           liftE $ installHLSBin lVer GHCupInternal False $> (vi, dirs, ce)
         Stack -> do
-          let vi = getVersionInfo lVer Stack dls
+          let vi = getVersionInfo (GHCTargetVersion lCross lVer) Stack dls
           liftE $ installStackBin lVer GHCupInternal False $> (vi, dirs, ce)
     )
     >>= \case
@@ -553,7 +564,7 @@ del' _ (_, ListResult {..}) = do
   let run = runE @'[NotInstalled, UninstallFailed]
 
   run (do
-      let vi = getVersionInfo lVer lTool dls
+      let vi = getVersionInfo (GHCTargetVersion lCross lVer) lTool dls
       case lTool of
         GHC   -> liftE $ rmGHCVer (GHCTargetVersion lCross lVer) $> vi
         Cabal -> liftE $ rmCabalVer lVer $> vi
@@ -563,7 +574,7 @@ del' _ (_, ListResult {..}) = do
     )
     >>= \case
           VRight vi -> do
-            logGHCPostRm (mkTVer lVer)
+            when (lTool == GHC) $ logGHCPostRm (mkTVer lVer)
             forM_ (_viPostRemove =<< vi) $ \msg ->
               logInfo msg
             pure $ Right ()
@@ -576,7 +587,7 @@ changelog' :: (MonadReader AppState m, MonadIO m)
            -> m (Either String ())
 changelog' _ (_, ListResult {..}) = do
   AppState { pfreq, ghcupInfo = GHCupInfo { _ghcupDownloads = dls }} <- ask
-  case getChangeLog dls lTool (Left lVer) of
+  case getChangeLog dls lTool (ToolVersion lVer) of
     Nothing -> pure $ Left $
       "Could not find ChangeLog for " <> prettyShow lTool <> ", version " <> T.unpack (prettyVer lVer)
     Just uri -> do
@@ -656,5 +667,5 @@ getAppData mgi = runExceptT $ do
   settings <- liftIO $ readIORef settings'
 
   flip runReaderT settings $ do
-    lV <- listVersions Nothing Nothing
+    lV <- listVersions Nothing [] False True (Nothing, Nothing)
     pure $ BrickData (reverse lV)

app/ghcup/Main.hs

@@ -240,7 +240,7 @@ Report bugs at <https://github.com/haskell/ghcup-hs/issues>|]
                   _
                     | Just False <- optVerbose -> pure ()
                     | otherwise -> lookupEnv "GHCUP_SKIP_UPDATE_CHECK" >>= \case
-                         Nothing -> void . flip runReaderT s' . runE @'[TagNotFound, NextVerNotFound, NoToolVersionSet] $ do
+                         Nothing -> void . flip runReaderT s' . runE @'[TagNotFound, DayNotFound, NextVerNotFound, NoToolVersionSet] $ do
                            newTools <- lift checkForUpdates
                            forM_ newTools $ \newTool@(t, l) -> do
                              -- https://gitlab.haskell.org/haskell/ghcup-hs/-/issues/283
@@ -249,7 +249,7 @@ Report bugs at <https://github.com/haskell/ghcup-hs/issues>|]
                                case t of
                                  GHCup -> runLogger $
                                             logWarn ("New GHCup version available: "
-                                              <> prettyVer l
+                                              <> tVerToText l
                                               <> ". To upgrade, run 'ghcup upgrade'")
                                  _ -> runLogger $
                                         logWarn ("New "
@@ -258,7 +258,7 @@ Report bugs at <https://github.com/haskell/ghcup-hs/issues>|]
                                           <> "If you want to install this latest version, run 'ghcup install "
                                           <> T.pack (prettyShow t)
                                           <> " "
-                                          <> prettyVer l
+                                          <> tVerToText l
                                           <> "'")
                          Just _ -> pure ()
 
@@ -332,9 +332,10 @@ Report bugs at <https://github.com/haskell/ghcup-hs/issues>|]
                        , MonadCatch m
                        )
                     => Command
-                    -> (Tool, Version)
+                    -> (Tool, GHCTargetVersion)
                     -> Excepts
                          '[ TagNotFound
+                          , DayNotFound
                           , NextVerNotFound
                           , NoToolVersionSet
                           ] m Bool
@@ -367,12 +368,13 @@ Report bugs at <https://github.com/haskell/ghcup-hs/issues>|]
           )
        => Tool
        -> Maybe ToolVersion
-       -> Version
+       -> GHCTargetVersion
        -> Excepts
             '[ TagNotFound
+             , DayNotFound
              , NextVerNotFound
              , NoToolVersionSet
              ] m Bool
   cmp' tool instVer ver = do
     (v, _) <- liftE $ fromVersion instVer tool
-    pure (v == mkTVer ver)
+    pure (v == ver)

cabal.project

@@ -8,6 +8,11 @@ package ghcup
 constraints: http-io-streams -brotli,
              any.aeson >= 2.0.1.0
 
+source-repository-package
+  type: git
+  location: https://github.com/fosskers/versions.git
+  tag: 7bc3355348aac3510771d4622aff09ac38c9924d
+
 package libarchive
   flags: -system-libarchive
 
@@ -23,3 +28,5 @@ package aeson
 package streamly
   flags: +use-unliftio
 
+package *
+  test-show-details: direct

cabal.project.release

@@ -4,6 +4,11 @@ optional-packages: ./vendored/*/*.cabal
 
 optimization: 2
 
+source-repository-package
+  type: git
+  location: https://github.com/fosskers/versions.git
+  tag: 7bc3355348aac3510771d4622aff09ac38c9924d
+
 if os(linux)
   package ghcup
     flags: +tui

docker/alpine32/Dockerfile

@@ -37,8 +37,8 @@ RUN apk add --no-cache \
             xz-dev \
             ncurses-static
 
-ARG GHCUP_VERSION=0.1.18.0
-ARG GPG_KEY=7784930957807690A66EBDBE3786C5262ECB4A3F
+ARG GHCUP_VERSION=0.1.19.4
+ARG GPG_KEY=7D1E8AFD1D4A16D71FADA2F2CCC85C0E40C06A8C
 
 # install ghcup
 RUN gpg --batch --keyserver keys.openpgp.org --recv-keys $GPG_KEY && \

docker/alpine64/Dockerfile

@@ -37,8 +37,9 @@ RUN apk add --no-cache \
             xz-dev \
             ncurses-static
 
-ARG GHCUP_VERSION=0.1.18.0
-ARG GPG_KEY=7784930957807690A66EBDBE3786C5262ECB4A3F
+ARG GHCUP_VERSION=0.1.19.4
+ARG GPG_KEY=7D1E8AFD1D4A16D71FADA2F2CCC85C0E40C06A8C
+
 
 # install ghcup
 RUN gpg --batch --keyserver keys.openpgp.org --recv-keys $GPG_KEY && \

docker/arm32v7/buster/Dockerfile

@@ -29,8 +29,8 @@ RUN apt-get update && \
 
 RUN update_opt.sh 11 1
 
-ARG GHCUP_VERSION=0.1.17.8
-ARG GPG_KEY=7784930957807690A66EBDBE3786C5262ECB4A3F
+ARG GHCUP_VERSION=0.1.19.4
+ARG GPG_KEY=7D1E8AFD1D4A16D71FADA2F2CCC85C0E40C06A8C
 
 # install ghcup
 RUN gpg --batch --keyserver keys.openpgp.org --recv-keys $GPG_KEY && \

docker/arm32v7/focal/Dockerfile

@@ -29,8 +29,8 @@ RUN apt-get update && \
 
 RUN update_opt.sh 9 1
 
-ARG GHCUP_VERSION=0.1.17.8
-ARG GPG_KEY=7784930957807690A66EBDBE3786C5262ECB4A3F
+ARG GHCUP_VERSION=0.1.19.4
+ARG GPG_KEY=7D1E8AFD1D4A16D71FADA2F2CCC85C0E40C06A8C
 
 # install ghcup
 RUN gpg --batch --keyserver keys.openpgp.org --recv-keys $GPG_KEY && \

docker/arm64v8/buster/Dockerfile

@@ -29,8 +29,8 @@ RUN apt-get update && \
 
 RUN update_opt.sh 11 1
 
-ARG GHCUP_VERSION=0.1.18.0
-ARG GPG_KEY=7784930957807690A66EBDBE3786C5262ECB4A3F
+ARG GHCUP_VERSION=0.1.19.4
+ARG GPG_KEY=7D1E8AFD1D4A16D71FADA2F2CCC85C0E40C06A8C
 
 # install ghcup
 RUN gpg --batch --keyserver keys.openpgp.org --recv-keys $GPG_KEY && \

docker/arm64v8/focal/Dockerfile

@@ -29,8 +29,8 @@ RUN apt-get update && \
 
 RUN update_opt.sh 9 1
 
-ARG GHCUP_VERSION=0.1.18.0
-ARG GPG_KEY=7784930957807690A66EBDBE3786C5262ECB4A3F
+ARG GHCUP_VERSION=0.1.19.4
+ARG GPG_KEY=7D1E8AFD1D4A16D71FADA2F2CCC85C0E40C06A8C
 
 # install ghcup
 RUN gpg --batch --keyserver keys.openpgp.org --recv-keys $GPG_KEY && \

docs/guide.md

@@ -43,6 +43,12 @@ All of the following are valid arguments to `ghcup install ghc`:
 
 If the argument is omitted, the default is `recommended`.
 
+Other tags include:
+
+- `prerelease`: a prerelease version
+- `latest-prerelease`: the latest prerelease version
+
+
 ## Manpages
 
 For man pages to work you need [man-db](http://man-db.nongnu.org/) as your `man` provider, then issue `man ghc`. Manpages only work for the currently set ghc.
@@ -461,8 +467,10 @@ this is cryptographically secure.
 First, obtain the gpg keys:
 
 ```sh
-gpg --batch --keyserver keys.openpgp.org     --recv-keys 7784930957807690A66EBDBE3786C5262ECB4A3F
+gpg --batch --keyserver keyserver.ubuntu.com --recv-keys 7D1E8AFD1D4A16D71FADA2F2CCC85C0E40C06A8C
 gpg --batch --keyserver keyserver.ubuntu.com --recv-keys FE5AB6C91FEA597C3B31180B73EDE9E8CFBAEF01
+gpg --batch --keyserver keyserver.ubuntu.com --recv-keys 88B57FCF7DB53B4DB3BFA4B1588764FBE22D19C4
+gpg --batch --keyserver keyserver.ubuntu.com --recv-keys EAF2A9A722C0C96F2B431CA511AAD8CEDEE0CAEF
 ```
 
 Then verify the gpg key in one of these ways:

docs/install.md

@@ -38,47 +38,78 @@ Also see [tags and shortcuts](../guide/#tags-and-shortcuts) for more information
 
 ### Linux Debian
 
+#### Generic
+
 The following distro packages are required: `build-essential curl libffi-dev libffi6 libgmp-dev libgmp10 libncurses-dev libncurses5 libtinfo5`
 
+#### Version >= 11
+
+The following distro packages are required: `build-essential curl libffi-dev libffi7 libgmp-dev libgmp10 libncurses-dev libncurses5 libtinfo5`
+
 ### Linux Ubuntu
 
+#### Generic
+
 The following distro packages are required: `build-essential curl libffi-dev libffi6 libgmp-dev libgmp10 libncurses-dev libncurses5 libtinfo5`
 
+#### Version >= 20.04 && < 20.10
+
+The following distro packages are required: `build-essential curl libffi-dev libffi7 libgmp-dev libgmp10 libncurses-dev libncurses5 libtinfo5`
+
+#### Version >= 20.10
+
+The following distro packages are required: `build-essential curl libffi-dev libffi8ubuntu1 libgmp-dev libgmp10 libncurses-dev libncurses5 libtinfo5`
+
+
 ### Linux Fedora
 
+#### Generic
+
 The following distro packages are required: `gcc gcc-c++ gmp gmp-devel make ncurses ncurses-compat-libs xz perl`
 
-### Linux Mageia
-
-The following distro packages are required: `curl gcc gcc-c++ gmp libffi-devel libffi7 libgmp-devel libgmp10 make libncurses-devel libncurses5 xz perl`
 
 ### Linux CentOS
 
+#### Generic
+
 The following distro packages are required: `gcc gcc-c++ gmp gmp-devel make ncurses ncurses-compat-libs xz perl`
 
+#### Version >= 7 && < 8
+
+The following distro packages are required: `gcc gcc-c++ gmp gmp-devel make ncurses xz perl`
+
+
 ### Linux Alpine
 
+#### Generic
+
 The following distro packages are required: `binutils-gold curl gcc g++ gmp-dev libc-dev libffi-dev make musl-dev ncurses-dev perl tar xz`
 
-### Linux VoidLinux
-
-The following distro packages are required: `gcc gmp curl coreutils xz ncurses make ncurses-libtinfo-libs perl tar`
 
 ### Linux (generic)
 
+#### Generic
+
 You need the following packages: curl g++ gcc gmp make ncurses realpath xz-utils. Consult your distro documentation on the exact names of those packages.
 
 ### Darwin
 
+#### Generic
+
 On OS X, in the course of running ghcup you will be given a dialog box to install the command line tools. Accept and the requirements will be installed for you. You will then need to run the command again.
 On Darwin M1 you might also need a working llvm installed (e.g. via brew) and have the toolchain exposed in PATH.
 
 ### FreeBSD
 
+#### Generic
+
 The following distro packages are required: `curl gcc gmp gmake ncurses perl5 libffi libiconv`
 
+
 ### Windows
 
+#### Generic
+
 On Windows, msys2 should already have been set up during the installation, so most users should just proceed. If you are installing manually, make sure to have a working mingw64 toolchain and shell.
 
 ## Next steps
@@ -102,10 +133,19 @@ GHCup supports the following tools, which are also known as the **Haskell Toolch
 <table>
 <thead><tr><th>GHC Version</th><th>Tags</th></tr></thead>
 <tbody>
-<tr><td>9.4.3</td><td><span style="color:blue">latest</span>, base-4.17.0.0</td></tr>
+<tr><td>9.6.2</td><td><span style="color:blue">latest</span>, base-4.18.0.0</td></tr>
+<tr><td>9.6.1</td><td>base-4.18.0.0</td></tr>
+<tr><td>9.4.7</td><td>base-4.17.2.0</td></tr>
+<tr><td>9.4.6</td><td>base-4.17.2.0</td></tr>
+<tr><td>9.4.5</td><td>base-4.17.1.0</td></tr>
+<tr><td>9.4.4</td><td>base-4.17.0.0</td></tr>
+<tr><td>9.4.3</td><td>base-4.17.0.0</td></tr>
 <tr><td>9.4.2</td><td>base-4.17.0.0</td></tr>
 <tr><td>9.4.1</td><td>base-4.17.0.0</td></tr>
-<tr><td>9.2.5</td><td><span style="color:green">recommended</span>, base-4.16.4.0</td></tr>
+<tr><td>9.2.8</td><td><span style="color:green">recommended</span>, base-4.16.4.0</td></tr>
+<tr><td>9.2.7</td><td>base-4.16.4.0</td></tr>
+<tr><td>9.2.6</td><td>base-4.16.4.0</td></tr>
+<tr><td>9.2.5</td><td>base-4.16.4.0</td></tr>
 <tr><td>9.2.4</td><td>base-4.16.3.0</td></tr>
 <tr><td>9.2.3</td><td>base-4.16.2.0</td></tr>
 <tr><td>9.2.2</td><td>base-4.16.1.0</td></tr>
@@ -143,7 +183,8 @@ GHCup supports the following tools, which are also known as the **Haskell Toolch
 <table>
 <thead><tr><th>Cabal Version</th><th>Tags</th></tr></thead>
 <tbody>
-<tr><td>3.8.1.0</td><td><span style="color:blue">latest</span></td></tr>
+<tr><td>3.10.1.0</td><td><span style="color:blue">latest</span></td></tr>
+<tr><td>3.8.1.0</td><td></td></tr>
 <tr><td>3.6.2.0</td><td><span style="color:green">recommended</span></td></tr>
 <tr><td>3.6.0.0</td><td></td></tr>
 <tr><td>3.4.1.0</td><td></td></tr>
@@ -159,7 +200,14 @@ GHCup supports the following tools, which are also known as the **Haskell Toolch
 <table>
 <thead><tr><th>HLS Version</th><th>Tags</th></tr></thead>
 <tbody>
-<tr><td>1.8.0.0</td><td><span style="color:blue">latest</span>, <span style="color:green">recommended</span></td></tr>
+<tr><td>2.2.0.0</td><td><span style="color:blue">latest</span>, <span style="color:green">recommended</span></td></tr>
+<tr><td>2.1.0.0</td><td></td></tr>
+<tr><td>2.0.0.1</td><td></td></tr>
+<tr><td>2.0.0.0</td><td></td></tr>
+<tr><td>1.10.0.0</td><td></td></tr>
+<tr><td>1.9.1.0</td><td></td></tr>
+<tr><td>1.9.0.0</td><td></td></tr>
+<tr><td>1.8.0.0</td><td></td></tr>
 <tr><td>1.7.0.0</td><td></td></tr>
 <tr><td>1.6.1.0</td><td></td></tr>
 <tr><td>1.6.0.0</td><td></td></tr>
@@ -177,7 +225,9 @@ GHCup supports the following tools, which are also known as the **Haskell Toolch
 <table>
 <thead><tr><th>Stack Version</th><th>Tags</th></tr></thead>
 <tbody>
-<tr><td>2.9.1</td><td><span style="color:blue">latest</span>, <span style="color:green">recommended</span></td></tr>
+<tr><td>2.11.1</td><td><span style="color:blue">latest</span></td></tr>
+<tr><td>2.9.3</td><td><span style="color:green">recommended</span></td></tr>
+<tr><td>2.9.1</td><td></td></tr>
 <tr><td>2.7.5</td><td></td></tr>
 <tr><td>2.7.3</td><td></td></tr>
 <tr><td>2.7.1</td><td></td></tr>
@@ -190,7 +240,7 @@ GHCup supports the following tools, which are also known as the **Haskell Toolch
 
 This list may not be exhaustive and specifies support for bindists only.
 
-| Platform | Architecture | ghcup | GHC | cabal | HLS | stack | 
+| Platform | Architecture | ghcup | GHC | cabal | HLS | stack |
 | ------ | ------ | ------ | ------ | ------ | ------ | ------ |
 | Windows 7 | amd64 | ❔ | ✅ | ✅ | ✅ | ✅ |
 | Windows 10 | amd64 | ✅ | ✅ | ✅ | ✅ | ✅ |
@@ -231,8 +281,9 @@ There are various issues with GHC itself.
 
 ### FreeBSD
 
-Lacks some upstream bindists and may need compat libs, since most bindists are built on FreeBSD-12.
+Lacks some upstream bindists and may need compat libs (such as `misc/compat12x`).
 HLS bindists are experimental.
+Only latest FreeBSD is generally supported.
 
 ### Linux ARMv7/AARCH64
 
@@ -245,7 +296,14 @@ Lower availability of bindists. Stack and HLS binaries are experimental.
 Download the binary for your platform at [https://downloads.haskell.org/~ghcup/](https://downloads.haskell.org/~ghcup/)
 and place it into your `PATH` anywhere.
 
-If you want to GPG verify the binaries, import the following keys first: `7784930957807690A66EBDBE3786C5262ECB4A3F` and `FE5AB6C91FEA597C3B31180B73EDE9E8CFBAEF01`.
+If you want to GPG verify the binaries, import the following keys first:
+
+```sh
+gpg --batch --keyserver keyserver.ubuntu.com --recv-keys 7D1E8AFD1D4A16D71FADA2F2CCC85C0E40C06A8C
+gpg --batch --keyserver keyserver.ubuntu.com --recv-keys FE5AB6C91FEA597C3B31180B73EDE9E8CFBAEF01
+gpg --batch --keyserver keyserver.ubuntu.com --recv-keys 88B57FCF7DB53B4DB3BFA4B1588764FBE22D19C4
+gpg --batch --keyserver keyserver.ubuntu.com --recv-keys EAF2A9A722C0C96F2B431CA511AAD8CEDEE0CAEF
+```
 
 Then adjust your `PATH` in `~/.bashrc` (or similar, depending on your shell) like so:
 
@@ -307,6 +365,24 @@ export PATH="$HOME/.cabal/bin:$HOME/.ghcup/bin:$PATH"
 
 All set. You can run `cabal init` now in an empty directory to start a project.
 
+## Esoteric distros
+
+### Void Linux
+
+Since void linux can be installed with glibc and musl, it's hard to support correctly with ghcup.
+One way to make ghcup work on **Void Linux musl** is to follow the [Overriding distro detection](../guide/#overriding-distro-detection)
+section and tell it to consider Alpine bindists only. E.g.:
+
+```sh
+curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | BOOTSTRAP_HASKELL_MINIMAL=1 sh
+source ~/.ghcup/env
+ghcup config set platform-override '{ "arch": "A_64", "platform": { "contents": "Alpine", "tag": "Linux" }, "version": "3.17" }'
+ghcup install cabal --set latest
+ghcup install ghc --set latest
+ghcup install stack --set latest
+ghcup install hls --set latest
+```
+
 ## Vim integration
 
 See [ghcup.vim](https://github.com/hasufell/ghcup.vim).

docs/steps.md

@@ -328,7 +328,7 @@ see the [Cabal user guide](https://cabal.readthedocs.io/en/stable/getting-starte
 <a href="https://hackage.haskell.org/" class="btn btn-primary" role="button">Discover Haskell packages</a>
 <a href="https://hackage.haskell.org/package/base" class="btn btn-primary" role="button">The standard library</a>
 <a href="https://haskell-language-server.readthedocs.io/en/stable/installation.html" class="btn btn-primary" role="button">Editor setup with HLS</a>
-<a href="https://play-haskell.tomsmeding.com/play" class="btn btn-primary" role="button">Online playground</a>
+<a href="https://play.haskell.org/" class="btn btn-primary" role="button">Online playground</a>
 </div>
 
 ## How to learn Haskell proper

ghcup.cabal

@@ -1,6 +1,6 @@
 cabal-version:      2.4
 name:               ghcup
-version:            0.1.19.2
+version:            0.1.19.5
 license:            LGPL-3.0-only
 license-file:       LICENSE
 copyright:          Julian Ospald 2020
@@ -25,10 +25,10 @@ extra-source-files:
   cbits/dirutils.h
   data/build_mk/cross
   data/build_mk/default
-  test/data/dir/.keep
-  test/data/file
-  test/golden/unix/GHCupInfo.json
-  test/golden/windows/GHCupInfo.json
+  test/ghcup-test/data/dir/.keep
+  test/ghcup-test/data/file
+  test/ghcup-test/golden/unix/GHCupInfo.json
+  test/ghcup-test/golden/windows/GHCupInfo.json
 
 source-repository head
   type:     git
@@ -53,6 +53,43 @@ flag no-exe
   default:     False
   manual:      True
 
+common app-common-depends
+  build-depends:
+    , aeson                  >=1.4
+    , aeson-pretty           ^>=0.8.8
+    , async                  ^>=2.2.3
+    , base                   >=4.12     && <5
+    , bytestring             >=0.10     && <0.12
+    , cabal-install-parsers  >=0.4.5
+    , cabal-plan             ^>=0.7.2
+    , containers             ^>=0.6
+    , deepseq                ^>=1.4
+    , directory              ^>=1.3.6.0
+    , filepath               ^>=1.4.2.1
+    , haskus-utils-types     ^>=1.5
+    , haskus-utils-variant   ^>=3.2.1
+    , libarchive             ^>=3.0.3.0
+    , megaparsec             >=8.0.0    && <9.3
+    , mtl                    ^>=2.2
+    , optparse-applicative   >=0.15.1.0 && <0.18
+    , pretty                 ^>=1.1.3.1
+    , pretty-terminal        ^>=0.1.0.0
+    , process                ^>=1.6.11.0
+    , resourcet              ^>=1.2.2
+    , safe                   ^>=0.3.18
+    , safe-exceptions        ^>=0.1
+    , tagsoup                ^>=0.14
+    , template-haskell       >=2.7      && <2.20
+    , temporary              ^>=1.3
+    , text                   ^>=2.0
+    , time                   >=1.9.3    && <1.12
+    , unordered-containers   ^>=0.2
+    , uri-bytestring         ^>=0.3.2.2
+    , utf8-string            ^>=1.0
+    , vector                 ^>=0.12
+    , versions               >=6.0.3    && <6.1
+    , yaml-streamly          ^>=0.12.0
+
 library
   exposed-modules:
     GHCup
@@ -137,7 +174,7 @@ library
     , pretty-terminal       ^>=0.1.0.0
     , regex-posix           ^>=0.96
     , resourcet             ^>=1.2.2
-    , retry                 ^>=0.8.1.2
+    , retry                 >=0.8.1.2    && <0.10
     , safe                  ^>=0.3.18
     , safe-exceptions       ^>=0.1
     , split                 ^>=0.2.3.4
@@ -146,13 +183,13 @@ library
     , template-haskell      >=2.7        && <2.20
     , temporary             ^>=1.3
     , text                  ^>=2.0
-    , time                  ^>=1.9.3
+    , time                  >=1.9.3      && <1.12
     , transformers          ^>=0.5
     , unliftio-core         ^>=0.2.0.1
     , unordered-containers  ^>=0.2.10.0
     , uri-bytestring        ^>=0.3.2.2
     , vector                ^>=0.12
-    , versions              >=4.0.1      && <5.1
+    , versions              >=6.0.3      && <6.1
     , word8                 ^>=0.1.3
     , yaml-streamly         ^>=0.12.0
     , zlib                  ^>=0.6.2.2
@@ -199,11 +236,11 @@ library
 
   if (flag(tui) && !os(windows))
     cpp-options:   -DBRICK
-    build-depends: vty ^>=5.37
+    build-depends: vty ^>=5.39
 
-executable ghcup
-  main-is:            Main.hs
-  other-modules:
+library ghcup-optparse
+  import:             app-common-depends
+  exposed-modules:
     GHCup.OptParse
     GHCup.OptParse.ChangeLog
     GHCup.OptParse.Common
@@ -224,6 +261,40 @@ executable ghcup
     GHCup.OptParse.Upgrade
     GHCup.OptParse.Whereis
 
+  hs-source-dirs:     lib-opt
+  default-language:   Haskell2010
+  default-extensions:
+    LambdaCase
+    MultiWayIf
+    NamedFieldPuns
+    PackageImports
+    RecordWildCards
+    ScopedTypeVariables
+    StrictData
+    TupleSections
+
+  ghc-options:
+    -Wall -fwarn-tabs -fwarn-incomplete-uni-patterns
+    -fwarn-incomplete-record-updates
+
+  build-depends:      ghcup
+
+  if flag(internal-downloader)
+    cpp-options: -DINTERNAL_DOWNLOADER
+
+  if (flag(tui) && !os(windows))
+    cpp-options:   -DBRICK
+
+  if os(windows)
+    cpp-options: -DIS_WINDOWS
+
+  else
+    build-depends: unix ^>=2.7
+
+executable ghcup
+  import:             app-common-depends
+  main-is:            Main.hs
+
   hs-source-dirs:     app/ghcup
   default-language:   Haskell2010
   default-extensions:
@@ -241,40 +312,8 @@ executable ghcup
     -fwarn-incomplete-record-updates -threaded
 
   build-depends:
-    , aeson                  >=1.4
-    , aeson-pretty           ^>=0.8.8
-    , async                  ^>=2.2.3
-    , base                   >=4.12     && <5
-    , bytestring             >=0.10     && <0.12
-    , cabal-install-parsers  >=0.4.5
-    , cabal-plan             ^>=0.7.2
-    , containers             ^>=0.6
-    , deepseq                ^>=1.4
-    , directory              ^>=1.3.6.0
-    , filepath               ^>=1.4.2.1
     , ghcup
-    , haskus-utils-types     ^>=1.5
-    , haskus-utils-variant   ^>=3.2.1
-    , libarchive             ^>=3.0.3.0
-    , megaparsec             >=8.0.0    && <9.3
-    , mtl                    ^>=2.2
-    , optparse-applicative   >=0.15.1.0 && <0.18
-    , pretty                 ^>=1.1.3.1
-    , pretty-terminal        ^>=0.1.0.0
-    , process                ^>=1.6.11.0
-    , resourcet              ^>=1.2.2
-    , safe                   ^>=0.3.18
-    , safe-exceptions        ^>=0.1
-    , tagsoup                ^>=0.14
-    , template-haskell       >=2.7      && <2.20
-    , temporary              ^>=1.3
-    , text                   ^>=2.0
-    , unordered-containers   ^>=0.2
-    , uri-bytestring         ^>=0.3.2.2
-    , utf8-string            ^>=1.0
-    , vector                 ^>=0.12
-    , versions               >=4.0.1    && <5.1
-    , yaml-streamly          ^>=0.12.0
+    , ghcup-optparse
 
   if flag(internal-downloader)
     cpp-options: -DINTERNAL_DOWNLOADER
@@ -286,7 +325,7 @@ executable ghcup
       , brick         ^>=1.5
       , transformers  ^>=0.5
       , unix          ^>=2.7
-      , vty           ^>=5.37
+      , vty           ^>=5.39
 
   if os(windows)
     cpp-options: -DIS_WINDOWS
@@ -301,7 +340,7 @@ test-suite ghcup-test
   type:               exitcode-stdio-1.0
   main-is:            Main.hs
   build-tool-depends: hspec-discover:hspec-discover -any
-  hs-source-dirs:     test
+  hs-source-dirs:     test/ghcup-test
   other-modules:
     GHCup.ArbitraryTypes
     GHCup.Prelude.File.Posix.TraversalsSpec
@@ -336,11 +375,49 @@ test-suite ghcup-test
     , quickcheck-arbitrary-adt  ^>=0.3.1.0
     , streamly                  ^>=0.8.2
     , text                      ^>=2.0
+    , time                      >=1.9.3   && <1.12
     , uri-bytestring            ^>=0.3.2.2
-    , versions                  >=4.0.1   && <5.1
+    , versions                  >=6.0.3   && <6.1
 
   if os(windows)
     cpp-options: -DIS_WINDOWS
 
   else
     build-depends: unix ^>=2.7
+
+test-suite ghcup-optparse-test
+  type:             exitcode-stdio-1.0
+  hs-source-dirs:   test/optparse-test
+  main-is:          Main.hs
+  other-modules:
+    ChangeLogTest
+    CompileTest
+    ConfigTest
+    GCTest
+    InstallTest
+    ListTest
+    OtherCommandTest
+    RmTest
+    RunTest
+    SetTest
+    UnsetTest
+    UpgradeTest
+    Utils
+    WhereisTest
+
+  if os(windows)
+    cpp-options: -DIS_WINDOWS
+
+  default-language: Haskell2010
+  ghc-options:      -Wall
+  build-depends:
+    , base
+    , ghcup
+    , ghcup-optparse
+    , optparse-applicative
+    , tasty
+    , tasty-hunit
+    , template-haskell
+    , text
+    , uri-bytestring
+    , versions

hie.yaml

@@ -5,4 +5,6 @@ cradle:
   - component: "ghcup:exe:ghcup"
     path: ./app/ghcup
   - component: "ghcup:test:ghcup-test"
-    path: ./test
+    path: ./test/ghcup-test
+  - component: "ghcup:test:ghcup-optparse-test"
+    path: ./test/optparse-test

lib-opt/GHCup/OptParse.hs

@@ -244,7 +244,8 @@ com =
       <> command
            "list"
            (info (List <$> listOpts <**> helper)
-                 (progDesc "Show available GHCs and other tools")
+                 (progDesc "Show available GHCs and other tools"
+                 <> footerDoc (Just $ text listToolFooter))
            )
       <> command
            "upgrade"

lib-opt/GHCup/OptParse/ChangeLog.hs

@@ -35,7 +35,6 @@ import qualified Data.Text                     as T
 import Control.Exception.Safe (MonadMask)
 import GHCup.Types.Optics
 import GHCup.Utils
-import Data.Versions
 import URI.ByteString (serializeURIRef')
 import Data.Char (toLower)
 
@@ -50,7 +49,7 @@ data ChangeLogOptions = ChangeLogOptions
   { clOpen    :: Bool
   , clTool    :: Maybe Tool
   , clToolVer :: Maybe ToolVersion
-  }
+  } deriving (Eq, Show)
 
 
 
@@ -76,12 +75,12 @@ changelogP =
                 e       -> Left e
               )
             )
-            (short 't' <> long "tool" <> metavar "<ghc|cabal|hls|ghcup>" <> help
+            (short 't' <> long "tool" <> metavar "<ghc|cabal|hls|ghcup|stack>" <> help
               "Open changelog for given tool (default: ghc)"
               <> completer toolCompleter
             )
           )
-    <*> optional (toolVersionTagArgument Nothing Nothing)
+    <*> optional (toolVersionTagArgument [] Nothing)
 
 
 
@@ -115,20 +114,15 @@ changelog :: ( Monad m
 changelog ChangeLogOptions{..} runAppState runLogger = do
   GHCupInfo { _ghcupDownloads = dls } <- runAppState getGHCupInfo
   let tool = fromMaybe GHC clTool
-      ver' = maybe
-        (Right Latest)
-        (\case
-          GHCVersion tv  -> Left (_tvVersion tv)
-          ToolVersion tv -> Left tv
-          ToolTag     t  -> Right t
-        )
+      ver' = fromMaybe
+        (ToolTag Latest)
         clToolVer
       muri = getChangeLog dls tool ver'
   case muri of
     Nothing -> do
       runLogger
         (logWarn $
-          "Could not find ChangeLog for " <> T.pack (prettyShow tool) <> ", version " <> either prettyVer (T.pack . show) ver'
+          "Could not find ChangeLog for " <> T.pack (prettyShow tool) <> ", version " <> T.pack (prettyShow ver')
         )
       pure ExitSuccess
     Just uri -> do

lib-opt/GHCup/OptParse/Common.hs

@@ -5,6 +5,7 @@
 {-# LANGUAGE DuplicateRecordFields #-}
 {-# LANGUAGE TypeApplications #-}
 {-# LANGUAGE NumericUnderscores #-}
+{-# LANGUAGE ViewPatterns      #-}
 
 module GHCup.OptParse.Common where
 
@@ -45,7 +46,9 @@ import           Data.Functor
 import           Data.List                      ( nub, sort, sortBy, isPrefixOf, stripPrefix )
 import           Data.Maybe
 import           Data.Text                      ( Text )
-import           Data.Versions           hiding ( str )
+import           Data.Time.Calendar             ( Day )
+import           Data.Time.Format               ( parseTimeM, defaultTimeLocale )
+import           Data.Versions
 import           Data.Void
 import qualified Data.Vector      as V
 import           GHC.IO.Exception
@@ -72,26 +75,27 @@ import qualified Cabal.Config            as CC
     --[ Types ]--
     -------------
 
-data ToolVersion = GHCVersion GHCTargetVersion
-                 | ToolVersion Version
-                 | ToolTag Tag
 
 -- a superset of ToolVersion
 data SetToolVersion = SetGHCVersion GHCTargetVersion
                     | SetToolVersion Version
                     | SetToolTag Tag
+                    | SetToolDay Day
                     | SetRecommended
                     | SetNext
+                    deriving (Eq, Show)
 
 prettyToolVer :: ToolVersion -> String
-prettyToolVer (GHCVersion v') = T.unpack $ tVerToText v'
+prettyToolVer (GHCVersion v')  = T.unpack $ tVerToText v'
 prettyToolVer (ToolVersion v') = T.unpack $ prettyVer v'
-prettyToolVer (ToolTag t) = show t
+prettyToolVer (ToolTag t)      = show t
+prettyToolVer (ToolDay day)    = show day
 
 toSetToolVer :: Maybe ToolVersion -> SetToolVersion
 toSetToolVer (Just (GHCVersion v')) = SetGHCVersion v'
 toSetToolVer (Just (ToolVersion v')) = SetToolVersion v'
 toSetToolVer (Just (ToolTag t')) = SetToolTag t'
+toSetToolVer (Just (ToolDay d')) = SetToolDay d'
 toSetToolVer Nothing = SetRecommended
 
 
@@ -102,28 +106,28 @@ toSetToolVer Nothing = SetRecommended
     --------------
 
 
-toolVersionTagArgument :: Maybe ListCriteria -> Maybe Tool -> Parser ToolVersion
+toolVersionTagArgument :: [ListCriteria] -> Maybe Tool -> Parser ToolVersion
 toolVersionTagArgument criteria tool =
   argument (eitherReader (parser tool))
     (metavar (mv tool)
     <> completer (tagCompleter (fromMaybe GHC tool) [])
     <> foldMap (completer . versionCompleter criteria) tool)
  where
-  mv (Just GHC) = "GHC_VERSION|TAG"
-  mv (Just HLS) = "HLS_VERSION|TAG"
-  mv _          = "VERSION|TAG"
+  mv (Just GHC) = "GHC_VERSION|TAG|RELEASE_DATE"
+  mv (Just HLS) = "HLS_VERSION|TAG|RELEASE_DATE"
+  mv _          = "VERSION|TAG|RELEASE_DATE"
 
   parser (Just GHC) = ghcVersionTagEither
   parser Nothing    = ghcVersionTagEither
   parser _          = toolVersionTagEither
 
 
-versionParser' :: Maybe ListCriteria -> Maybe Tool -> Parser Version
+versionParser' :: [ListCriteria] -> Maybe Tool -> Parser Version
 versionParser' criteria tool = argument
   (eitherReader (first show . version . T.pack))
   (metavar "VERSION"  <> foldMap (completer . versionCompleter criteria) tool)
 
-ghcVersionArgument :: Maybe ListCriteria -> Maybe Tool -> Parser GHCTargetVersion
+ghcVersionArgument :: [ListCriteria] -> Maybe Tool -> Parser GHCTargetVersion
 ghcVersionArgument criteria tool = argument (eitherReader ghcVersionEither)
                                             (metavar "VERSION" <> foldMap (completer . versionCompleter criteria) tool)
 
@@ -237,22 +241,23 @@ isolateParser f = case isValid f && isAbsolute f of
 -- this accepts cross prefix
 ghcVersionTagEither :: String -> Either String ToolVersion
 ghcVersionTagEither s' =
-  second ToolTag (tagEither s') <|> second GHCVersion (ghcVersionEither s')
+  second ToolDay (dayParser s') <|> second ToolTag (tagEither s') <|> second GHCVersion (ghcVersionEither s')
 
 -- this ignores cross prefix
 toolVersionTagEither :: String -> Either String ToolVersion
 toolVersionTagEither s' =
-  second ToolTag (tagEither s') <|> second ToolVersion (toolVersionEither s')
+  second ToolDay (dayParser s') <|> second ToolTag (tagEither s') <|> second ToolVersion (toolVersionEither s')
 
 tagEither :: String -> Either String Tag
 tagEither s' = case fmap toLower s' of
   "recommended"              -> Right Recommended
   "latest"                   -> Right Latest
   "latest-prerelease"        -> Right LatestPrerelease
+  "latest-nightly"           -> Right LatestNightly
   ('b':'a':'s':'e':'-':ver') -> case pvp (T.pack ver') of
                                   Right x -> Right (Base x)
                                   Left  _ -> Left $ "Invalid PVP version for base " <> ver'
-  other         -> Left $ "Unknown tag " <> other
+  other                      -> Left $ "Unknown tag " <> other
 
 
 ghcVersionEither :: String -> Either String GHCTargetVersion
@@ -261,7 +266,7 @@ ghcVersionEither =
 
 toolVersionEither :: String -> Either String Version
 toolVersionEither =
-  first (const "Not a valid version") . MP.parse version' "" . T.pack
+  first (const "Not a valid version") . MP.parse (version' <* MP.eof) "" . T.pack
 
 
 toolParser :: String -> Either String Tool
@@ -272,12 +277,22 @@ toolParser s' | t == T.pack "ghc"   = Right GHC
               | otherwise           = Left ("Unknown tool: " <> s')
   where t = T.toLower (T.pack s')
 
+dayParser :: String -> Either String Day
+dayParser s = maybe (Left $ "Could not parse \"" <> s <> "\". Expected format is: YYYY-MM-DD") Right
+            $ parseTimeM True defaultTimeLocale "%Y-%-m-%-d" s
+
 
 criteriaParser :: String -> Either String ListCriteria
-criteriaParser s' | t == T.pack "installed" = Right ListInstalled
-                  | t == T.pack "set"       = Right ListSet
-                  | t == T.pack "available" = Right ListAvailable
-                  | otherwise               = Left ("Unknown criteria: " <> s')
+criteriaParser s' | t == T.pack "installed"   = Right $ ListInstalled True
+                  | t == T.pack "set"         = Right $ ListSet True
+                  | t == T.pack "available"   = Right $ ListAvailable True
+                  | t == T.pack "+installed"  = Right $ ListInstalled True
+                  | t == T.pack "+set"        = Right $ ListSet True
+                  | t == T.pack "+available"  = Right $ ListAvailable True
+                  | t == T.pack "-installed"  = Right $ ListInstalled False
+                  | t == T.pack "-set"        = Right $ ListSet False
+                  | t == T.pack "-available"  = Right $ ListAvailable False
+                  | otherwise                 = Left ("Unknown criteria: " <> s')
   where t = T.toLower (T.pack s')
 
 
@@ -455,10 +470,10 @@ tagCompleter tool add = listIOCompleter $ do
       pure $ nub $ (add ++) $ fmap tagToString allTags
     VLeft _ -> pure  (nub $ ["recommended", "latest", "latest-prerelease"] ++ add)
 
-versionCompleter :: Maybe ListCriteria -> Tool -> Completer
+versionCompleter :: [ListCriteria] -> Tool -> Completer
 versionCompleter criteria tool = versionCompleter' criteria tool (const True)
 
-versionCompleter' :: Maybe ListCriteria -> Tool -> (Version -> Bool) -> Completer
+versionCompleter' :: [ListCriteria] -> Tool -> (Version -> Bool) -> Completer
 versionCompleter' criteria tool filter' = listIOCompleter $ do
   dirs' <- liftIO getAllDirs
   let loggerConfig = LoggerConfig
@@ -487,7 +502,7 @@ versionCompleter' criteria tool filter' = listIOCompleter $ do
 
           runEnv = flip runReaderT appState
 
-      installedVersions <- runEnv $ listVersions (Just tool) criteria
+      installedVersions <- runEnv $ listVersions (Just tool) criteria False False (Nothing, Nothing)
       return $ fmap (T.unpack . prettyVer) . filter filter' . fmap lVer $ installedVersions
 
 
@@ -655,6 +670,7 @@ fromVersion :: ( HasLog env
             -> Tool
             -> Excepts
                  '[ TagNotFound
+                  , DayNotFound
                   , NextVerNotFound
                   , NoToolVersionSet
                   ] m (GHCTargetVersion, Maybe VersionInfo)
@@ -673,49 +689,58 @@ fromVersion' :: ( HasLog env
              -> Tool
              -> Excepts
                   '[ TagNotFound
+                   , DayNotFound
                    , NextVerNotFound
                    , NoToolVersionSet
                    ] m (GHCTargetVersion, Maybe VersionInfo)
 fromVersion' SetRecommended tool = do
   GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
-  bimap mkTVer Just <$> getRecommended dls tool
+  second Just <$> getRecommended dls tool
     ?? TagNotFound Recommended tool
 fromVersion' (SetGHCVersion v) tool = do
   GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
-  let vi = getVersionInfo (_tvVersion v) tool dls
+  let vi = getVersionInfo v tool dls
   case pvp $ prettyVer (_tvVersion v) of -- need to be strict here
     Left _ -> pure (v, vi)
     Right pvpIn ->
-      lift (getLatestToolFor tool pvpIn dls) >>= \case
-        Just (pvp_, vi') -> do
+      lift (getLatestToolFor tool (_tvTarget v) pvpIn dls) >>= \case
+        Just (pvp_, vi', mt) -> do
           v' <- lift $ pvpToVersion pvp_ ""
           when (v' /= _tvVersion v) $ lift $ logWarn ("Assuming you meant version " <> prettyVer v')
-          pure (GHCTargetVersion (_tvTarget v) v', Just vi')
+          pure (GHCTargetVersion mt v', Just vi')
         Nothing -> pure (v, vi)
-fromVersion' (SetToolVersion v) tool = do
+fromVersion' (SetToolVersion (mkTVer -> v)) tool = do
   GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
   let vi = getVersionInfo v tool dls
-  case pvp $ prettyVer v of -- need to be strict here
-    Left _ -> pure (mkTVer v, vi)
+  case pvp $ prettyVer (_tvVersion v) of -- need to be strict here
+    Left _ -> pure (v, vi)
     Right pvpIn ->
-      lift (getLatestToolFor tool pvpIn dls) >>= \case
-        Just (pvp_, vi') -> do
+      lift (getLatestToolFor tool (_tvTarget v) pvpIn dls) >>= \case
+        Just (pvp_, vi', mt) -> do
           v' <- lift $ pvpToVersion pvp_ ""
-          when (v' /= v) $ lift $ logWarn ("Assuming you meant version " <> prettyVer v')
-          pure (GHCTargetVersion mempty v', Just vi')
-        Nothing -> pure (mkTVer v, vi)
+          when (v' /= _tvVersion v) $ lift $ logWarn ("Assuming you meant version " <> prettyVer v')
+          pure (GHCTargetVersion mt v', Just vi')
+        Nothing -> pure (v, vi)
 fromVersion' (SetToolTag Latest) tool = do
   GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
-  bimap mkTVer Just <$> getLatest dls tool ?? TagNotFound Latest tool
+  bimap id Just <$> getLatest dls tool ?? TagNotFound Latest tool
+fromVersion' (SetToolDay day) tool = do
+  GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
+  bimap id Just <$> case getByReleaseDay dls tool day of
+                          Left ad -> throwE $ DayNotFound day tool ad
+                          Right v -> pure v
 fromVersion' (SetToolTag LatestPrerelease) tool = do
   GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
-  bimap mkTVer Just <$> getLatestPrerelease dls tool ?? TagNotFound LatestPrerelease tool
+  bimap id Just <$> getLatestPrerelease dls tool ?? TagNotFound LatestPrerelease tool
+fromVersion' (SetToolTag LatestNightly) tool = do
+  GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
+  bimap id Just <$> getLatestNightly dls tool ?? TagNotFound LatestNightly tool
 fromVersion' (SetToolTag Recommended) tool = do
   GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
-  bimap mkTVer Just <$> getRecommended dls tool ?? TagNotFound Recommended tool
+  bimap id Just <$> getRecommended dls tool ?? TagNotFound Recommended tool
 fromVersion' (SetToolTag (Base pvp'')) GHC = do
   GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
-  bimap mkTVer Just <$> getLatestBaseVersion dls pvp'' ?? TagNotFound (Base pvp'') GHC
+  bimap id Just <$> getLatestBaseVersion dls pvp'' ?? TagNotFound (Base pvp'') GHC
 fromVersion' SetNext tool = do
   GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
   next <- case tool of
@@ -760,7 +785,7 @@ fromVersion' SetNext tool = do
         . sort
         $ stacks) ?? NoToolVersionSet tool
     GHCup -> fail "GHCup cannot be set"
-  let vi = getVersionInfo (_tvVersion next) tool dls
+  let vi = getVersionInfo next tool dls
   pure (next, vi)
 fromVersion' (SetToolTag t') tool =
   throwE $ TagNotFound t' tool
@@ -776,15 +801,15 @@ checkForUpdates :: ( MonadReader env m
                    , MonadIO m
                    , MonadFail m
                    )
-                => m [(Tool, Version)]
+                => m [(Tool, GHCTargetVersion)]
 checkForUpdates = do
   GHCupInfo { _ghcupDownloads = dls } <- getGHCupInfo
-  lInstalled <- listVersions Nothing (Just ListInstalled)
-  let latestInstalled tool = (fmap lVer . lastMay . filter (\lr -> lTool lr == tool)) lInstalled
+  lInstalled <- listVersions Nothing [ListInstalled True] False False (Nothing, Nothing)
+  let latestInstalled tool = (fmap (\lr -> GHCTargetVersion (lCross lr) (lVer lr)) . lastMay . filter (\lr -> lTool lr == tool)) lInstalled
 
-  ghcup <- forMM (getLatest dls GHCup) $ \(l, _) -> do
+  ghcup <- forMM (getLatest dls GHCup) $ \(GHCTargetVersion _ l, _) -> do
     (Right ghcup_ver) <- pure $ version $ prettyPVP ghcUpVer
-    if (l > ghcup_ver) then pure $ Just (GHCup, l) else pure Nothing
+    if (l > ghcup_ver) then pure $ Just (GHCup, mkTVer l) else pure Nothing
 
   otherTools <- forM [GHC, Cabal, HLS, Stack] $ \t ->
     forMM (getLatest dls t) $ \(l, _) -> do
@@ -799,7 +824,7 @@ checkForUpdates = do
 
 logGHCPostRm :: (MonadReader env m, HasLog env, MonadIO m) => GHCTargetVersion -> m ()
 logGHCPostRm ghcVer = do
-  cabalStore <- liftIO $ handleIO (\_ -> if isWindows then pure "C:\\cabal\\store" else pure "~/.cabal/store")
+  cabalStore <- liftIO $ handleIO (\_ -> if isWindows then pure "C:\\cabal\\store" else pure "~/.cabal/store or ~/.local/state/cabal/store")
     (runIdentity . CC.cfgStoreDir <$> CC.readConfig)
   let storeGhcDir = cabalStore </> ("ghc-" <> T.unpack (prettyVer $ _tvVersion ghcVer))
   logInfo $ T.pack $ "After removing GHC you might also want to clean up your cabal store at: " <> storeGhcDir

lib-opt/GHCup/OptParse/Compile.hs

@@ -57,6 +57,7 @@ import Text.Read (readEither)
 
 data CompileCommand = CompileGHC GHCCompileOptions
                     | CompileHLS HLSCompileOptions
+                    deriving (Eq, Show)
 
 
 
@@ -66,7 +67,7 @@ data CompileCommand = CompileGHC GHCCompileOptions
 
 
 data GHCCompileOptions = GHCCompileOptions
-  { targetGhc    :: GHC.GHCVer Version
+  { targetGhc    :: GHC.GHCVer
   , bootstrapGhc :: Either Version FilePath
   , jobs         :: Maybe Int
   , buildConfig  :: Maybe FilePath
@@ -76,9 +77,9 @@ data GHCCompileOptions = GHCCompileOptions
   , setCompile   :: Bool
   , ovewrwiteVer :: Maybe Version
   , buildFlavour :: Maybe String
-  , hadrian      :: Bool
+  , buildSystem  :: Maybe BuildSystem
   , isolateDir   :: Maybe FilePath
-  }
+  } deriving (Eq, Show)
 
 
 data HLSCompileOptions = HLSCompileOptions
@@ -93,7 +94,7 @@ data HLSCompileOptions = HLSCompileOptions
   , patches      :: Maybe (Either FilePath [URI])
   , targetGHCs   :: [ToolVersion]
   , cabalArgs    :: [Text]
-  }
+  } deriving (Eq, Show)
 
 
 
@@ -170,7 +171,7 @@ ghcCompileOpts =
           )
           (short 'v' <> long "version" <> metavar "VERSION" <> help
             "The tool version to compile"
-            <> (completer $ versionCompleter Nothing GHC)
+            <> (completer $ versionCompleter [] GHC)
           )
           ) <|>
           (GHC.GitDist <$> (GitBranch <$> option
@@ -205,7 +206,7 @@ ghcCompileOpts =
           <> metavar "BOOTSTRAP_GHC"
           <> help
                "The GHC version (or full path) to bootstrap with (must be installed)"
-          <> (completer $ versionCompleter Nothing GHC)
+          <> (completer $ versionCompleter [] GHC)
           )
     <*> optional
           (option
@@ -258,7 +259,7 @@ ghcCompileOpts =
             )
             (short 'o' <> long "overwrite-version" <> metavar "OVERWRITE_VERSION" <> help
               "Allows to overwrite the finally installed VERSION with a different one, e.g. when you build 8.10.4 with your own patches, you might want to set this to '8.10.4-p1'"
-            <> (completer $ versionCompleter Nothing GHC)
+            <> (completer $ versionCompleter [] GHC)
             )
           )
     <*> optional
@@ -268,16 +269,22 @@ ghcCompileOpts =
               "Set the compile build flavour (this value depends on the build system type: 'make' vs 'hadrian')"
             )
           )
-    <*> switch
-          (long "hadrian" <> help "Use the hadrian build system instead of make (only git versions seem to be properly supported atm)"
+    <*> (
+         (\b -> if b then Just Hadrian else Nothing) <$> switch
+          (long "hadrian" <> help "Use the hadrian build system instead of make. Tries to detect by default."
           )
+         <|>
+         (\b -> if b then Just Make else Nothing) <$> switch
+          (long "make" <> help "Use the make build system instead of hadrian. Tries to detect by default."
+          )
+        )
     <*> optional
           (option
             (eitherReader isolateParser)
             (  short 'i'
             <> long "isolate"
             <> metavar "DIR"
-            <> help "install in an isolated directory instead of the default one, no symlinks to this installation will be made"
+            <> help "install in an isolated absolute directory instead of the default one, no symlinks to this installation will be made"
             <> completer (bashCompleter "directory")
             )
            )
@@ -291,7 +298,7 @@ hlsCompileOpts =
           )
           (short 'v' <> long "version" <> metavar "VERSION" <> help
             "The version to compile (pulled from hackage)"
-            <> (completer $ versionCompleter' Nothing HLS (either (const False) (const True) . V.pvp . V.prettyVer))
+            <> (completer $ versionCompleter' [] HLS (either (const False) (const True) . V.pvp . V.prettyVer))
           )
           )
           <|>
@@ -311,7 +318,7 @@ hlsCompileOpts =
             )
           (long "source-dist" <> metavar "VERSION" <> help
             "The version to compile (pulled from packaged git sources)"
-            <> (completer $ versionCompleter Nothing HLS)
+            <> (completer $ versionCompleter [] HLS)
           )
           ))
           <|>
@@ -343,7 +350,7 @@ hlsCompileOpts =
             )
             (short 'o' <> long "overwrite-version" <> metavar "OVERWRITE_VERSION" <> help
               "Allows to overwrite the finally installed VERSION with a different one, e.g. when you build 8.10.4 with your own patches, you might want to set this to '8.10.4-p1'"
-            <> (completer $ versionCompleter Nothing HLS)
+            <> (completer $ versionCompleter [] HLS)
             )
           )
           <|>
@@ -360,7 +367,7 @@ hlsCompileOpts =
             (  short 'i'
             <> long "isolate"
             <> metavar "DIR"
-            <> help "install in an isolated directory instead of the default one, no symlinks to this installation will be made"
+            <> help "install in an isolated absolute directory instead of the default one, no symlinks to this installation will be made"
             <> completer (bashCompleter "directory")
             )
            )
@@ -403,7 +410,7 @@ hlsCompileOpts =
           option (eitherReader ghcVersionTagEither)
             (  long "ghc" <> metavar "GHC_VERSION|TAG" <> help "For which GHC version to compile for (can be specified multiple times)"
             <> completer (tagCompleter GHC [])
-            <> completer (versionCompleter Nothing GHC))
+            <> completer (versionCompleter [] GHC))
         )
     <*> many (argument str (metavar "CABAL_ARGS" <> help "Additional arguments to cabal install, prefix with '-- ' (longopts)"))
 
@@ -453,6 +460,7 @@ type HLSEffects = '[ AlreadyInstalled
                   , UnknownArchive
                   , TarDirDoesNotExist
                   , TagNotFound
+                  , DayNotFound
                   , NextVerNotFound
                   , NoToolVersionSet
                   , NotInstalled
@@ -510,7 +518,7 @@ compile compileCommand settings Dirs{..} runAppState runLogger = do
         case targetHLS of
           HLS.SourceDist targetVer -> do
             GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
-            let vi = getVersionInfo targetVer HLS dls
+            let vi = getVersionInfo (mkTVer targetVer) HLS dls
             forM_ (_viPreCompile =<< vi) $ \msg -> do
               lift $ logInfo msg
               lift $ logInfo
@@ -530,7 +538,7 @@ compile compileCommand settings Dirs{..} runAppState runLogger = do
                     patches
                     cabalArgs
         GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
-        let vi = getVersionInfo targetVer HLS dls
+        let vi = getVersionInfo (mkTVer targetVer) HLS dls
         when setCompile $ void $ liftE $
           setHLS targetVer SetHLSOnly Nothing
         pure (vi, targetVer)
@@ -554,15 +562,12 @@ compile compileCommand settings Dirs{..} runAppState runLogger = do
               VLeft e -> do
                 runLogger $ logError $ T.pack $ prettyHFError e
                 pure $ ExitFailure 9
-    (CompileGHC GHCCompileOptions { hadrian = True, crossTarget = Just _ }) -> do
-      runLogger $ logError "Hadrian cross compile support is not yet implemented!"
-      pure $ ExitFailure 9
     (CompileGHC GHCCompileOptions {..}) ->
       runCompileGHC runAppState (do
         case targetGhc of
           GHC.SourceDist targetVer -> do
             GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
-            let vi = getVersionInfo targetVer GHC dls
+            let vi = getVersionInfo (mkTVer targetVer) GHC dls
             forM_ (_viPreCompile =<< vi) $ \msg -> do
               lift $ logInfo msg
               lift $ logInfo
@@ -570,10 +575,8 @@ compile compileCommand settings Dirs{..} runAppState runLogger = do
               liftIO $ threadDelay 5000000 -- for compilation, give the user a sec to intervene
           _ -> pure ()
         targetVer <- liftE $ compileGHC
-                    ((\case
-                        GHC.SourceDist v -> GHC.SourceDist $ GHCTargetVersion crossTarget v
-                        GHC.GitDist g -> GHC.GitDist g
-                        GHC.RemoteDist r -> GHC.RemoteDist r) targetGhc)
+                    targetGhc
+                    crossTarget
                     ovewrwiteVer
                     bootstrapGhc
                     jobs
@@ -581,10 +584,10 @@ compile compileCommand settings Dirs{..} runAppState runLogger = do
                     patches
                     addConfArgs
                     buildFlavour
-                    hadrian
+                    buildSystem
                     (maybe GHCupInternal IsolateDir isolateDir)
         GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
-        let vi = getVersionInfo (_tvVersion targetVer) GHC dls
+        let vi = getVersionInfo targetVer GHC dls
         when setCompile $ void $ liftE $
           setGHC targetVer SetGHCOnly Nothing
         pure (vi, targetVer)

lib-opt/GHCup/OptParse/Config.hs

@@ -52,6 +52,7 @@ data ConfigCommand
   | SetConfig String (Maybe String)
   | InitConfig
   | AddReleaseChannel Bool URI
+  deriving (Eq, Show)
 
 
 

lib-opt/GHCup/OptParse/GC.hs

@@ -47,7 +47,7 @@ data GCOptions = GCOptions
   , gcHLSNoGHC :: Bool
   , gcCache :: Bool
   , gcTmp :: Bool
-  }
+  } deriving (Eq, Show)
 
 
 

lib-opt/GHCup/OptParse/Install.hs

@@ -54,6 +54,7 @@ data InstallCommand = InstallGHC InstallOptions
                     | InstallCabal InstallOptions
                     | InstallHLS InstallOptions
                     | InstallStack InstallOptions
+                    deriving (Eq, Show)
 
 
 
@@ -70,7 +71,7 @@ data InstallOptions = InstallOptions
   , isolateDir   :: Maybe FilePath
   , forceInstall :: Bool
   , addConfArgs  :: [T.Text]
-  }
+  } deriving (Eq, Show)
 
 
 
@@ -184,7 +185,7 @@ installOpts tool =
                       <> completer (toolDlCompleter (fromMaybe GHC tool))
                     )
                   )
-            <*> (Just <$> toolVersionTagArgument Nothing tool)
+            <*> (Just <$> toolVersionTagArgument [] tool)
             )
         <|> pure (Nothing, Nothing)
         )
@@ -196,7 +197,7 @@ installOpts tool =
            (  short 'i'
            <> long "isolate"
            <> metavar "DIR"
-           <> help "install in an isolated dir instead of the default one"
+           <> help "install in an isolated absolute directory instead of the default one"
            <> completer (bashCompleter "directory")
            )
           )
@@ -241,6 +242,7 @@ type InstallEffects = '[ AlreadyInstalled
                        , NotInstalled
                        , BuildFailed
                        , TagNotFound
+                       , DayNotFound
                        , DigestError
                        , ContentLengthError
                        , GPGError
@@ -284,6 +286,7 @@ type InstallGHCEffects = '[ AlreadyInstalled
                           , NotInstalled
                           , ProcessError
                           , TagNotFound
+                          , DayNotFound
                           , TarDirDoesNotExist
                           , UninstallFailed
                           , UnknownArchive
@@ -322,7 +325,7 @@ install installCommand settings getAppState' runLogger = case installCommand of
        Nothing -> runInstGHC s' $ do
          (v, vi) <- liftE $ fromVersion instVer GHC
          liftE $ runBothE' (installGHCBin
-                     (_tvVersion v)
+                     v
                      (maybe GHCupInternal IsolateDir isolateDir)
                      forceInstall
                      addConfArgs
@@ -333,8 +336,8 @@ install installCommand settings getAppState' runLogger = case installCommand of
          runInstGHC s'{ settings = settings {noVerify = True}} $ do
            (v, vi) <- liftE $ fromVersion instVer GHC
            liftE $ runBothE' (installGHCBindist
-                       (DownloadInfo uri (Just $ RegexDir "ghc-.*") "" Nothing)
-                       (_tvVersion v)
+                       (DownloadInfo uri (Just $ RegexDir "ghc-.*") "" Nothing Nothing)
+                       v
                        (maybe GHCupInternal IsolateDir isolateDir)
                        forceInstall
                        addConfArgs
@@ -403,7 +406,7 @@ install installCommand settings getAppState' runLogger = case installCommand of
          runInstTool s'{ settings = settings { noVerify = True}} $ do
            (_tvVersion -> v, vi) <- liftE $ fromVersion instVer Cabal
            liftE $ runBothE' (installCabalBindist
-                                      (DownloadInfo uri Nothing "" Nothing)
+                                      (DownloadInfo uri Nothing "" Nothing Nothing)
                                       v
                                       (maybe GHCupInternal IsolateDir isolateDir)
                                       forceInstall
@@ -453,7 +456,7 @@ install installCommand settings getAppState' runLogger = case installCommand of
            (_tvVersion -> v, vi) <- liftE $ fromVersion instVer HLS
            -- TODO: support legacy
            liftE $ runBothE' (installHLSBindist
-                                      (DownloadInfo uri (if isWindows then Nothing else Just (RegexDir "haskell-language-server-*")) "" Nothing)
+                                      (DownloadInfo uri (if isWindows then Nothing else Just (RegexDir "haskell-language-server-*")) "" Nothing Nothing)
                                       v
                                       (maybe GHCupInternal IsolateDir isolateDir)
                                       forceInstall
@@ -502,7 +505,7 @@ install installCommand settings getAppState' runLogger = case installCommand of
           runInstTool s'{ settings = settings { noVerify = True}} $ do
             (_tvVersion -> v, vi) <- liftE $ fromVersion instVer Stack
             liftE $ runBothE' (installStackBindist
-                                       (DownloadInfo uri Nothing "" Nothing)
+                                       (DownloadInfo uri Nothing "" Nothing Nothing)
                                        v
                                        (maybe GHCupInternal IsolateDir isolateDir)
                                        forceInstall

lib-opt/GHCup/OptParse/List.hs

@@ -2,6 +2,7 @@
 {-# LANGUAGE DataKinds         #-}
 {-# LANGUAGE FlexibleContexts  #-}
 {-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE QuasiQuotes       #-}
 {-# LANGUAGE DuplicateRecordFields #-}
 {-# LANGUAGE RankNTypes #-}
 
@@ -14,6 +15,7 @@ import           GHCup
 import           GHCup.Prelude
 import           GHCup.Types
 import           GHCup.OptParse.Common
+import           GHCup.Prelude.String.QQ
 
 #if !MIN_VERSION_base(4,13,0)
 import           Control.Monad.Fail             ( MonadFail )
@@ -24,7 +26,8 @@ import           Data.Char
 import           Data.List                      ( intercalate, sort )
 import           Data.Functor
 import           Data.Maybe
-import           Data.Versions           hiding ( str )
+import           Data.Time.Calendar             ( Day )
+import           Data.Versions
 import           Data.Void
 import           Options.Applicative     hiding ( style )
 import           Prelude                 hiding ( appendFile )
@@ -50,8 +53,12 @@ import qualified Text.Megaparsec.Char          as MPC
 data ListOptions = ListOptions
   { loTool     :: Maybe Tool
   , lCriteria  :: Maybe ListCriteria
+  , lFrom      :: Maybe Day
+  , lTo        :: Maybe Day
+  , lHideOld   :: Bool
+  , lShowNightly :: Bool
   , lRawFormat :: Bool
-  }
+  } deriving (Eq, Show)
 
 
 
@@ -60,7 +67,6 @@ data ListOptions = ListOptions
     --[ Parsers ]--
     ---------------
 
-          
 listOpts :: Parser ListOptions
 listOpts =
   ListOptions
@@ -69,7 +75,7 @@ listOpts =
             (eitherReader toolParser)
             (short 't' <> long "tool" <> metavar "<ghc|cabal|hls|stack>" <> help
               "Tool to list versions for. Default is all"
-              <> completer (toolCompleter)
+              <> completer toolCompleter
             )
           )
     <*> optional
@@ -78,15 +84,53 @@ listOpts =
             (  short 'c'
             <> long "show-criteria"
             <> metavar "<installed|set|available>"
-            <> help "Show only installed/set/available tool versions"
-              <> completer (listCompleter ["installed", "set", "available"])
+            <> help "Apply filtering criteria, prefix with + or -"
+              <> completer (listCompleter
+                [ "+installed", "+set", "+available", "-installed", "-set", "-available"])
             )
           )
+    <*> optional
+          (option
+            (eitherReader dayParser)
+            (short 's' <> long "since" <> metavar "YYYY-MM-DD" <> help
+              "List only tools with release date starting at YYYY-MM-DD or later"
+              <> completer toolCompleter
+            )
+          )
+    <*> optional
+          (option
+            (eitherReader dayParser)
+            (short 'u' <> long "until" <> metavar "YYYY-MM-DD" <> help
+              "List only tools with release date earlier than YYYY-MM-DD"
+              <> completer toolCompleter
+            )
+          )
+    <*> switch
+          (short 'o' <> long "hide-old" <> help "Hide 'old' GHC versions (installed ones are always shown)"
+          )
+    <*> switch
+          (short 'n' <> long "show-nightly" <> help "Show nightlies (installed ones are always shown)"
+          )
     <*> switch
           (short 'r' <> long "raw-format" <> help "More machine-parsable format"
           )
 
 
+    --------------
+    --[ Footer ]--
+    --------------
+
+
+listToolFooter :: String
+listToolFooter = [s|Discussion:
+  Lists tool versions with optional criteria.
+  Nightlies are by default hidden.
+
+Examples:
+  # query nightlies in a specific range
+  ghcup list --show-nightly --since 2022-12-07 --until 2022-12-31
+  # show all installed GHC versions
+  ghcup list -t ghc -c installed|]
 
 
     -----------------
@@ -105,9 +149,11 @@ printListResult no_color raw lr = do
     printTag Recommended        = color Green "recommended"
     printTag Latest             = color Yellow "latest"
     printTag Prerelease         = color Red "prerelease"
+    printTag Nightly            = color Red "nightly"
     printTag (Base       pvp'') = "base-" ++ T.unpack (prettyPVP pvp'')
     printTag (UnknownTag t    ) = t
     printTag LatestPrerelease   = color Red "latest-prerelease"
+    printTag LatestNightly      = color Red "latest-nightly"
     printTag Old                = ""
 
   let
@@ -134,8 +180,10 @@ printListResult no_color raw lr = do
                           then [color Green "hls-powered"]
                           else mempty
                         )
-                     ++ (if fromSrc then [color Blue "compiled"] else mempty)
                      ++ (if lStray then [color Yellow "stray"] else mempty)
+                     ++ (case lReleaseDay of
+                           Nothing -> mempty
+                           Just d  -> [color Blue (show d)])
                      ++ (if lNoBindist
                           then [color Red "no-bindist"]
                           else mempty
@@ -260,7 +308,7 @@ list :: ( Monad m
       -> m ExitCode
 list ListOptions{..} no_color runAppState =
   runAppState (do
-      l <- listVersions loTool lCriteria
+      l <- listVersions loTool (maybeToList lCriteria) lHideOld lShowNightly (lFrom, lTo)
       liftIO $ printListResult no_color lRawFormat l
       pure ExitSuccess
     )

lib-opt/GHCup/OptParse/Nuke.hs

@@ -76,8 +76,8 @@ nuke appState runLogger = do
 
        lift $ logInfo "Initiating Nuclear Sequence 🚀🚀🚀"
        lift $ logInfo "Nuking in 3...2...1"
-  
-       lInstalled <- lift $ listVersions Nothing (Just ListInstalled)
+
+       lInstalled <- lift $ listVersions Nothing [ListInstalled True] False True (Nothing, Nothing)
 
        forM_ lInstalled (liftE . rmTool)
 

lib-opt/GHCup/OptParse/Prefetch.hs

@@ -83,7 +83,7 @@ prefetchP = subparser
           <$> (PrefetchGHCOptions
                 <$> ( switch (short 's' <> long "source" <> help "Download source tarball instead of bindist") <**> helper )
                 <*> optional (option str (short 'd' <> long "directory" <> help "directory to download into (default: ~/.ghcup/cache/)" <> completer (bashCompleter "directory"))))
-          <*>  optional (toolVersionTagArgument Nothing (Just GHC)) )
+          <*>  optional (toolVersionTagArgument [] (Just GHC)) )
         ( progDesc "Download GHC assets for installation")
       )
       <>
@@ -92,7 +92,7 @@ prefetchP = subparser
       (info
         (PrefetchCabal
           <$> fmap PrefetchOptions (optional (option str (short 'd' <> long "directory" <> help "directory to download into (default: ~/.ghcup/cache/)" <> completer (bashCompleter "directory"))))
-          <*> ( optional (toolVersionTagArgument Nothing (Just Cabal)) <**> helper ))
+          <*> ( optional (toolVersionTagArgument [] (Just Cabal)) <**> helper ))
         ( progDesc "Download cabal assets for installation")
       )
       <>
@@ -101,7 +101,7 @@ prefetchP = subparser
       (info
         (PrefetchHLS
           <$> fmap PrefetchOptions (optional (option str (short 'd' <> long "directory" <> help "directory to download into (default: ~/.ghcup/cache/)" <> completer (bashCompleter "directory"))))
-          <*> ( optional (toolVersionTagArgument Nothing (Just HLS)) <**> helper ))
+          <*> ( optional (toolVersionTagArgument [] (Just HLS)) <**> helper ))
         ( progDesc "Download HLS assets for installation")
       )
       <>
@@ -110,7 +110,7 @@ prefetchP = subparser
       (info
         (PrefetchStack
           <$> fmap PrefetchOptions (optional (option str (short 'd' <> long "directory" <> help "directory to download into (default: ~/.ghcup/cache/)" <> completer (bashCompleter "directory"))))
-          <*> ( optional (toolVersionTagArgument Nothing (Just Stack)) <**> helper ))
+          <*> ( optional (toolVersionTagArgument [] (Just Stack)) <**> helper ))
         ( progDesc "Download stack assets for installation")
       )
       <>
@@ -148,6 +148,7 @@ Examples:
 
 
 type PrefetchEffects = '[ TagNotFound
+                        , DayNotFound
                         , NextVerNotFound
                         , NoToolVersionSet
                         , NoDownload
@@ -194,7 +195,7 @@ prefetch prefetchCommand runAppState runLogger =
           forM_ pfCacheDir (liftIO . createDirRecursive')
           (v, _) <- liftE $ fromVersion mt GHC
           if pfGHCSrc
-          then liftE $ fetchGHCSrc (_tvVersion v) pfCacheDir
+          then liftE $ fetchGHCSrc v pfCacheDir
           else liftE $ fetchToolBindist (_tvVersion v) GHC pfCacheDir
       PrefetchCabal PrefetchOptions {pfCacheDir} mt   -> do
         forM_ pfCacheDir (liftIO . createDirRecursive')

lib-opt/GHCup/OptParse/Rm.hs

@@ -29,7 +29,7 @@ import           Control.Monad.Reader
 import           Control.Monad.Trans.Resource
 import           Data.Functor
 import           Data.Maybe
-import           Data.Versions           hiding ( str )
+import           Data.Versions
 import           Haskus.Utils.Variant.Excepts
 import           Options.Applicative     hiding ( style )
 import           Prelude                 hiding ( appendFile )
@@ -50,6 +50,7 @@ data RmCommand = RmGHC RmOptions
                | RmCabal Version
                | RmHLS Version
                | RmStack Version
+               deriving (Eq, Show)
 
 
 
@@ -61,7 +62,7 @@ data RmCommand = RmGHC RmOptions
 
 data RmOptions = RmOptions
   { ghcVer :: GHCTargetVersion
-  }
+  } deriving (Eq, Show)
 
 
 
@@ -80,19 +81,19 @@ rmParser =
       <> command
            "cabal"
            (   RmCabal
-           <$> info (versionParser' (Just ListInstalled) (Just Cabal) <**> helper)
+           <$> info (versionParser' [ListInstalled True] (Just Cabal) <**> helper)
                     (progDesc "Remove Cabal version")
            )
       <> command
            "hls"
            (   RmHLS
-           <$> info (versionParser' (Just ListInstalled) (Just HLS) <**> helper)
+           <$> info (versionParser' [ListInstalled True] (Just HLS) <**> helper)
                     (progDesc "Remove haskell-language-server version")
            )
       <> command
            "stack"
            (   RmStack
-           <$> info (versionParser' (Just ListInstalled) (Just Stack) <**> helper)
+           <$> info (versionParser' [ListInstalled True] (Just Stack) <**> helper)
                     (progDesc "Remove stack version")
            )
       )
@@ -102,7 +103,7 @@ rmParser =
 
 
 rmOpts :: Maybe Tool -> Parser RmOptions
-rmOpts tool = RmOptions <$> ghcVersionArgument (Just ListInstalled) tool
+rmOpts tool = RmOptions <$> ghcVersionArgument [ListInstalled True] tool
 
 
 
@@ -170,7 +171,7 @@ rm rmCommand runAppState runLogger = case rmCommand of
         liftE $
           rmGHCVer ghcVer
         GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
-        pure (getVersionInfo (_tvVersion ghcVer) GHC dls)
+        pure (getVersionInfo ghcVer GHC dls)
       )
       >>= \case
             VRight vi -> do
@@ -186,7 +187,7 @@ rm rmCommand runAppState runLogger = case rmCommand of
         liftE $
           rmCabalVer tv
         GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
-        pure (getVersionInfo tv Cabal dls)
+        pure (getVersionInfo (mkTVer tv) Cabal dls)
       )
       >>= \case
             VRight vi -> do
@@ -201,7 +202,7 @@ rm rmCommand runAppState runLogger = case rmCommand of
         liftE $
           rmHLSVer tv
         GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
-        pure (getVersionInfo tv HLS dls)
+        pure (getVersionInfo (mkTVer tv) HLS dls)
       )
       >>= \case
             VRight vi -> do
@@ -216,7 +217,7 @@ rm rmCommand runAppState runLogger = case rmCommand of
         liftE $
           rmStackVer tv
         GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
-        pure (getVersionInfo tv Stack dls)
+        pure (getVersionInfo (mkTVer tv) Stack dls)
       )
       >>= \case
             VRight vi -> do

lib-opt/GHCup/OptParse/Run.hs

@@ -68,7 +68,7 @@ data RunOptions = RunOptions
   , runBinDir     :: Maybe FilePath
   , runQuick      :: Bool
   , runCOMMAND    :: [String]
-  }
+  } deriving (Eq, Show)
 
 
 
@@ -92,7 +92,7 @@ runOpts =
             (eitherReader ghcVersionTagEither)
             (metavar "GHC_VERSION" <> long "ghc" <> help "The ghc version"
             <> completer (tagCompleter GHC [])
-            <> (completer $ versionCompleter Nothing GHC)
+            <> (completer $ versionCompleter [] GHC)
             )
           )
     <*> optional
@@ -100,7 +100,7 @@ runOpts =
             (eitherReader toolVersionTagEither)
             (metavar "CABAL_VERSION" <> long "cabal" <> help "The cabal version"
             <> completer (tagCompleter Cabal [])
-            <> (completer $ versionCompleter Nothing Cabal)
+            <> (completer $ versionCompleter [] Cabal)
             )
           )
     <*> optional
@@ -108,7 +108,7 @@ runOpts =
             (eitherReader toolVersionTagEither)
             (metavar "HLS_VERSION" <> long "hls" <> help "The HLS version"
             <> completer (tagCompleter HLS [])
-            <> (completer $ versionCompleter Nothing HLS)
+            <> (completer $ versionCompleter [] HLS)
             )
           )
     <*> optional
@@ -116,7 +116,7 @@ runOpts =
             (eitherReader toolVersionTagEither)
             (metavar "STACK_VERSION" <> long "stack" <> help "The stack version"
             <> completer (tagCompleter Stack [])
-            <> (completer $ versionCompleter Nothing Stack)
+            <> (completer $ versionCompleter [] Stack)
             )
           )
     <*> optional
@@ -132,7 +132,7 @@ runOpts =
     <*> switch
           (short 'q' <> long "quick" <> help "Avoid any expensive work (such as downloads, version/tag resolution etc.). Disables --install.")
     <*> many (argument str (metavar "COMMAND" <> help "The command to run, with arguments (use longopts --). If omitted, just prints the created bin/ dir to stdout and exits."))
-          
+
 
 
 
@@ -175,6 +175,7 @@ type RunEffects = '[ AlreadyInstalled
                    , NotInstalled
                    , BuildFailed
                    , TagNotFound
+                   , DayNotFound
                    , DigestError
                    , ContentLengthError
                    , GPGError
@@ -282,6 +283,7 @@ run RunOptions{..} runAppState leanAppstate runLogger = do
                            )
                         => Excepts
                              '[ TagNotFound
+                              , DayNotFound
                               , NextVerNotFound
                               , NoToolVersionSet
                               ] (ResourceT (ReaderT AppState m)) Toolchain
@@ -332,6 +334,7 @@ run RunOptions{..} runAppState leanAppstate runLogger = do
                         -> FilePath
                         -> Excepts
                              '[ TagNotFound
+                              , DayNotFound
                               , NextVerNotFound
                               , NoToolVersionSet
                               , UnknownArchive
@@ -357,7 +360,7 @@ run RunOptions{..} runAppState leanAppstate runLogger = do
            Just v -> do
              isInstalled <- lift $ checkIfToolInstalled' GHC v
              unless isInstalled $ when (runInstTool' && isNothing (_tvTarget v)) $ void $ liftE $ installGHCBin
-               (_tvVersion v)
+               v
                GHCupInternal
                False
                []

lib-opt/GHCup/OptParse/Set.hs

@@ -28,7 +28,7 @@ import           Control.Monad.Trans.Resource
 import           Data.Either
 import           Data.Functor
 import           Data.Maybe
-import           Data.Versions           hiding ( str )
+import           Data.Versions
 import           GHC.Unicode
 import           Haskus.Utils.Variant.Excepts
 import           Options.Applicative     hiding ( style )
@@ -53,6 +53,7 @@ data SetCommand = SetGHC SetOptions
                 | SetCabal SetOptions
                 | SetHLS SetOptions
                 | SetStack SetOptions
+                deriving (Eq, Show)
 
 
 
@@ -64,7 +65,7 @@ data SetCommand = SetGHC SetOptions
 
 data SetOptions = SetOptions
   { sToolVer :: SetToolVersion
-  }
+  } deriving (Eq, Show)
 
 
 
@@ -139,9 +140,9 @@ setParser =
 setOpts :: Tool -> Parser SetOptions
 setOpts tool = SetOptions <$>
     (fromMaybe SetRecommended <$>
-      optional (setVersionArgument (Just ListInstalled) tool))
+      optional (setVersionArgument [ListInstalled True] tool))
 
-setVersionArgument :: Maybe ListCriteria -> Tool -> Parser SetToolVersion
+setVersionArgument :: [ListCriteria] -> Tool -> Parser SetToolVersion
 setVersionArgument criteria tool =
   argument (eitherReader setEither)
     (metavar "VERSION|TAG|next"
@@ -184,6 +185,7 @@ setFooter = [s|Discussion:
 type SetGHCEffects = '[ FileDoesNotExistError
                    , NotInstalled
                    , TagNotFound
+                   , DayNotFound
                    , NextVerNotFound
                    , NoToolVersionSet]
 
@@ -198,6 +200,7 @@ runSetGHC runAppState =
 
 type SetCabalEffects = '[ NotInstalled
                         , TagNotFound
+                        , DayNotFound
                         , NextVerNotFound
                         , NoToolVersionSet]
 
@@ -212,6 +215,7 @@ runSetCabal runAppState =
 
 type SetHLSEffects = '[ NotInstalled
                       , TagNotFound
+                      , DayNotFound
                       , NextVerNotFound
                       , NoToolVersionSet]
 
@@ -226,6 +230,7 @@ runSetHLS runAppState =
 
 type SetStackEffects = '[ NotInstalled
                         , TagNotFound
+                        , DayNotFound
                         , NextVerNotFound
                         , NoToolVersionSet]
 

lib-opt/GHCup/OptParse/Test.hs

@@ -112,7 +112,7 @@ testOpts tool =
                       <> completer (toolDlCompleter (fromMaybe GHC tool))
                     )
                   )
-            <*> (Just <$> toolVersionTagArgument Nothing tool)
+            <*> (Just <$> toolVersionTagArgument [] tool)
             )
         <|> pure (Nothing, Nothing)
         )
@@ -140,6 +140,7 @@ type TestGHCEffects = [ DigestError
                       , TestFailed
                       , NextVerNotFound
                       , TagNotFound
+                      , DayNotFound
                       , NoToolVersionSet
                       ]
 
@@ -168,12 +169,12 @@ test testCommand settings getAppState' runLogger = case testCommand of
     (case testBindist of
        Nothing -> runTestGHC s' $ do
          (v, vi) <- liftE $ fromVersion testVer GHC
-         liftE $ testGHCVer (_tvVersion v) addMakeArgs
+         liftE $ testGHCVer v addMakeArgs
          pure vi
        Just uri -> do
          runTestGHC s'{ settings = settings {noVerify = True}} $ do
            (v, vi) <- liftE $ fromVersion testVer GHC
-           liftE $ testGHCBindist (DownloadInfo uri (Just $ RegexDir ".*/.*") "" Nothing) (_tvVersion v) addMakeArgs
+           liftE $ testGHCBindist (DownloadInfo uri (Just $ RegexDir ".*/.*") "" Nothing Nothing) v addMakeArgs
            pure vi
       )
         >>= \case

lib-opt/GHCup/OptParse/UnSet.hs

@@ -48,6 +48,7 @@ data UnsetCommand = UnsetGHC   UnsetOptions
                   | UnsetCabal UnsetOptions
                   | UnsetHLS   UnsetOptions
                   | UnsetStack UnsetOptions
+                  deriving (Eq, Show)
 
 
 
@@ -59,7 +60,7 @@ data UnsetCommand = UnsetGHC   UnsetOptions
 
 data UnsetOptions = UnsetOptions
   { sToolVer :: Maybe T.Text -- target platform triple
-  }
+  } deriving (Eq, Show)
 
 
 
@@ -68,7 +69,7 @@ data UnsetOptions = UnsetOptions
     --[ Parsers ]--
     ---------------
 
-          
+
 unsetParser :: Parser UnsetCommand
 unsetParser =
   subparser
@@ -113,7 +114,14 @@ unsetParser =
   unsetGHCFooter :: String
   unsetGHCFooter = [s|Discussion:
     Unsets the the current GHC version. That means there won't
-    be a ~/.ghcup/bin/ghc anymore.|]
+    be a ~/.ghcup/bin/ghc anymore.
+
+Examples:
+  # unset ghc 
+  ghcup unset ghc
+
+  # unset ghc for the target version
+  ghcup unset ghc armv7-unknown-linux-gnueabihf|]
 
   unsetCabalFooter :: String
   unsetCabalFooter = [s|Discussion:

lib-opt/GHCup/OptParse/Upgrade.hs

@@ -35,7 +35,7 @@ import System.Environment
 import GHCup.Utils
 import System.FilePath
 import GHCup.Types.Optics
-import Data.Versions         hiding (str)
+import Data.Versions
 
 
 
@@ -50,7 +50,7 @@ import Data.Versions         hiding (str)
 data UpgradeOpts = UpgradeInplace
                  | UpgradeAt FilePath
                  | UpgradeGHCupDir
-                 deriving Show
+                 deriving (Eq, Show)
 
 
 

lib-opt/GHCup/OptParse/Whereis.hs

@@ -54,6 +54,7 @@ data WhereisCommand = WhereisTool Tool (Maybe ToolVersion)
                     | WhereisCacheDir
                     | WhereisLogsDir
                     | WhereisConfDir
+                    deriving (Eq, Show)
 
 
 
@@ -66,7 +67,7 @@ data WhereisCommand = WhereisTool Tool (Maybe ToolVersion)
 
 data WhereisOptions = WhereisOptions {
    directory :: Bool
-}
+} deriving (Eq, Show)
 
 
 
@@ -82,7 +83,7 @@ whereisP = subparser
     command
       "ghc"
       (WhereisTool GHC <$> info
-        ( optional (toolVersionTagArgument Nothing (Just GHC)) <**> helper )
+        ( optional (toolVersionTagArgument [] (Just GHC)) <**> helper )
         ( progDesc "Get GHC location"
         <> footerDoc (Just $ text whereisGHCFooter ))
       )
@@ -90,7 +91,7 @@ whereisP = subparser
      command
       "cabal"
       (WhereisTool Cabal <$> info
-        ( optional (toolVersionTagArgument Nothing (Just Cabal)) <**> helper )
+        ( optional (toolVersionTagArgument [] (Just Cabal)) <**> helper )
         ( progDesc "Get cabal location"
         <> footerDoc (Just $ text whereisCabalFooter ))
       )
@@ -98,7 +99,7 @@ whereisP = subparser
      command
       "hls"
       (WhereisTool HLS <$> info
-        ( optional (toolVersionTagArgument Nothing (Just HLS)) <**> helper )
+        ( optional (toolVersionTagArgument [] (Just HLS)) <**> helper )
         ( progDesc "Get HLS location"
         <> footerDoc (Just $ text whereisHLSFooter ))
       )
@@ -106,7 +107,7 @@ whereisP = subparser
      command
       "stack"
       (WhereisTool Stack <$> info
-        ( optional (toolVersionTagArgument Nothing (Just Stack)) <**> helper )
+        ( optional (toolVersionTagArgument [] (Just Stack)) <**> helper )
         ( progDesc "Get stack location"
         <> footerDoc (Just $ text whereisStackFooter ))
       )
@@ -222,6 +223,7 @@ type WhereisEffects = '[ NotInstalled
                 , NoToolVersionSet
                 , NextVerNotFound
                 , TagNotFound
+                , DayNotFound
                 ]
 
 

lib/GHCup.hs

@@ -134,15 +134,24 @@ rmTool :: ( MonadReader env m
           => ListResult
           -> Excepts '[NotInstalled, UninstallFailed] m ()
 rmTool ListResult {lVer, lTool, lCross} = do
-  logInfo $ "removing " <> T.pack (show lTool) <> " version " <> prettyVer lVer
+  let printRmTool = logInfo $ "removing " <> T.pack (show lTool) <> " version " <> prettyVer lVer
   case lTool of
-    GHC ->
+    GHC -> do
       let ghcTargetVersion = GHCTargetVersion lCross lVer
-      in rmGHCVer ghcTargetVersion
-    HLS -> rmHLSVer lVer
-    Cabal -> liftE $ rmCabalVer lVer
-    Stack -> liftE $ rmStackVer lVer
-    GHCup -> lift rmGhcup
+      logInfo $ "removing " <> T.pack (show lTool) <> " version " <> tVerToText ghcTargetVersion
+      rmGHCVer ghcTargetVersion
+    HLS -> do
+      printRmTool
+      rmHLSVer lVer
+    Cabal -> do
+      printRmTool
+      liftE $ rmCabalVer lVer
+    Stack -> do
+      printRmTool
+      liftE $ rmStackVer lVer
+    GHCup -> do
+      printRmTool
+      lift rmGhcup
 
 
 rmGhcupDirs :: ( MonadReader env m
@@ -303,7 +312,7 @@ upgradeGHCup mtarget force' fatal = do
   GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
 
   lift $ logInfo "Upgrading GHCup..."
-  let latestVer = fst (fromJust (getLatest dls GHCup))
+  let latestVer = _tvVersion $ fst (fromJust (getLatest dls GHCup))
   (Just ghcupPVPVer) <- pure $ pvpToVersion ghcUpVer ""
   when (not force' && (latestVer <= ghcupPVPVer)) $ throwE NoUpdate
   dli   <- liftE $ getDownloadInfo GHCup latestVer
@@ -492,7 +501,7 @@ rmOldGHC :: ( MonadReader env m
          => Excepts '[NotInstalled, UninstallFailed] m ()
 rmOldGHC = do
   GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
-  let oldGHCs = mkTVer <$> toListOf (ix GHC % getTagged Old % to fst) dls
+  let oldGHCs = toListOf (ix GHC % getTagged Old % to fst) dls
   ghcs <- lift $ fmap rights getInstalledGHCs
   forM_ ghcs $ \ghc -> when (ghc `elem` oldGHCs) $ rmGHCVer ghc
 

lib/GHCup/Cabal.hs

@@ -38,6 +38,7 @@ import           Control.Monad.Trans.Resource
                                          hiding ( throwM )
 import           Data.Either
 import           Data.List
+import           Data.Ord
 import           Data.Maybe
 import           Data.Versions                hiding ( patch )
 import           Haskus.Utils.Variant.Excepts
@@ -280,6 +281,6 @@ rmCabalVer ver = do
 
   when (Just ver == cSet) $ do
     cVers <- lift $ fmap rights getInstalledCabals
-    case headMay . reverse . sort $ cVers of
+    case headMay . sortBy (comparing Down) $ cVers of
       Just latestver -> setCabal latestver
       Nothing        -> lift $ rmLink (binDir </> "cabal" <> exeExt)

lib/GHCup/Download.hs

@@ -271,7 +271,6 @@ getBase uri = do
 
       pure f
 
-
 getDownloadInfo :: ( MonadReader env m
                    , HasPlatformReq env
                    , HasGHCupInfo env
@@ -283,8 +282,21 @@ getDownloadInfo :: ( MonadReader env m
                      '[NoDownload]
                      m
                      DownloadInfo
-getDownloadInfo t v = do
-  (PlatformRequest a p mv) <- lift getPlatformReq
+getDownloadInfo t v = getDownloadInfo' t (mkTVer v)
+
+getDownloadInfo' :: ( MonadReader env m
+                    , HasPlatformReq env
+                    , HasGHCupInfo env
+                    )
+                 => Tool
+                 -> GHCTargetVersion
+                 -- ^ tool version
+                 -> Excepts
+                      '[NoDownload]
+                      m
+                      DownloadInfo
+getDownloadInfo' t v = do
+  pfreq@(PlatformRequest a p mv) <- lift getPlatformReq
   GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
 
   let distro_preview f g =
@@ -305,7 +317,7 @@ getDownloadInfo t v = do
       without_distro     = distro_preview (set _Linux UnknownLinux) (const Nothing)
 
   maybe
-    (throwE NoDownload)
+    (throwE $ NoDownload v t (Just pfreq))
     pure
     (case p of
       -- non-musl won't work on alpine
@@ -633,7 +645,9 @@ downloadCached dli mfn = do
     True -> downloadCached' dli mfn Nothing
     False -> do
       tmp <- lift withGHCupTmpDir
-      liftE $ download (_dlUri dli) Nothing (Just (_dlHash dli)) (_dlCSize dli) (fromGHCupPath tmp) mfn False
+      liftE $ download (_dlUri dli) Nothing (Just (_dlHash dli)) (_dlCSize dli) (fromGHCupPath tmp) outputFileName False
+ where
+  outputFileName = mfn <|> _dlOutput dli
 
 
 downloadCached' :: ( MonadReader env m
@@ -652,7 +666,7 @@ downloadCached' :: ( MonadReader env m
 downloadCached' dli mfn mDestDir = do
   Dirs { cacheDir } <- lift getDirs
   let destDir = fromMaybe (fromGHCupPath cacheDir) mDestDir
-  let fn = fromMaybe ((T.unpack . decUTF8Safe) $ urlBaseName $ view (dlUri % pathL') dli) mfn
+  let fn = fromMaybe ((T.unpack . decUTF8Safe) $ urlBaseName $ view (dlUri % pathL') dli) outputFileName
   let cachfile = destDir </> fn
   fileExists <- liftIO $ doesFileExist cachfile
   if
@@ -660,7 +674,9 @@ downloadCached' dli mfn mDestDir = do
       forM_ (view dlCSize dli) $ \s -> liftE $ checkCSize s cachfile
       liftE $ checkDigest (view dlHash dli) cachfile
       pure cachfile
-    | otherwise -> liftE $ download (_dlUri dli) Nothing (Just (_dlHash dli)) (_dlCSize dli) destDir mfn False
+    | otherwise -> liftE $ download (_dlUri dli) Nothing (Just (_dlHash dli)) (_dlCSize dli) destDir outputFileName False
+ where
+  outputFileName = mfn <|> _dlOutput dli
 
 
 

lib/GHCup/Errors.hs

@@ -38,6 +38,7 @@ import qualified Data.Text                     as T
 import qualified Data.Text.Encoding            as E
 import qualified Data.Text.Encoding.Error      as E
 import           Data.Data (Proxy(..))
+import Data.Time (Day)
 
 
 
@@ -59,6 +60,7 @@ allHFError = unlines allErrors
     , let proxy = Proxy :: Proxy CopyError in format proxy
     , let proxy = Proxy :: Proxy MergeFileTreeError in format proxy
     , let proxy = Proxy :: Proxy TagNotFound in format proxy
+    , let proxy = Proxy :: Proxy DayNotFound in format proxy
     , let proxy = Proxy :: Proxy NextVerNotFound in format proxy
     , let proxy = Proxy :: Proxy AlreadyInstalled in format proxy
     , let proxy = Proxy :: Proxy DirNotEmpty in format proxy
@@ -204,12 +206,26 @@ instance HFErrorProject NoCompatiblePlatform where
   eDesc _ = "No compatible platform could be found"
 
 -- | Unable to find a download for the requested version/distro.
-data NoDownload = NoDownload
+data NoDownload = NoDownload GHCTargetVersion Tool (Maybe PlatformRequest)
+                | NoDownload' GlobalTool
   deriving Show
 
 instance Pretty NoDownload where
-  pPrint NoDownload =
-    text (eDesc (Proxy :: Proxy NoDownload))
+  pPrint (NoDownload tver@(GHCTargetVersion mtarget vv) tool mpfreq)
+    | (Just target) <- mtarget
+    , target `elem` (T.pack . prettyShow <$> enumFromTo (minBound :: Tool) (maxBound :: Tool))
+    = text $ "Unable to find a download for "
+             <> show tool
+             <> " version '"
+             <> T.unpack (tVerToText tver)
+             <> maybe "'\n" (\pfreq -> "' on detected platform " <> pfReqToString pfreq <> "\n") mpfreq
+             <> "Perhaps you meant: 'ghcup <command> "
+             <> T.unpack target
+             <> " "
+             <> T.unpack (prettyVer vv)
+             <> "'"
+    | otherwise = text $ "Unable to find a download for " <> T.unpack (tVerToText tver)
+  pPrint (NoDownload' globalTool) = text $ "Unable to find a download for " <> prettyShow globalTool
 
 instance HFErrorProject NoDownload where
   eBase _ = 10
@@ -311,6 +327,21 @@ instance HFErrorProject TagNotFound where
   eBase _ = 90
   eDesc _ = "Unable to find a tag of a tool"
 
+-- | Unable to find a release day of a tool
+data DayNotFound = DayNotFound Day Tool (Maybe Day)
+  deriving Show
+
+instance Pretty DayNotFound where
+  pPrint (DayNotFound day tool Nothing) =
+    text "Unable to find release date" <+> text (show day) <+> text "of tool" <+> pPrint tool
+  pPrint (DayNotFound day tool (Just alternateDay)) =
+    text "Unable to find release date" <+> text (show day) <+> text "of tool" <+> pPrint tool <+>
+      text "but found an alternative date" <+> text (show alternateDay)
+
+instance HFErrorProject DayNotFound where
+  eBase _ = 95
+  eDesc _ = "Unable to find a release date of a tool"
+
 -- | Unable to find the next version of a tool (the one after the currently
 -- set one).
 data NextVerNotFound = NextVerNotFound Tool

lib/GHCup/GHC.hs

@@ -80,9 +80,10 @@ import qualified Data.Text.Encoding            as E
 import qualified Text.Megaparsec               as MP
 
 
-data GHCVer v = SourceDist v
-              | GitDist GitBranch
-              | RemoteDist URI
+data GHCVer = SourceDist Version
+            | GitDist GitBranch
+            | RemoteDist URI
+            deriving (Eq, Show)
 
 
 
@@ -105,7 +106,7 @@ testGHCVer :: ( MonadFail m
               , MonadIO m
               , MonadUnliftIO m
               )
-           => Version
+           => GHCTargetVersion
            -> [T.Text]
            -> Excepts
                 '[ DigestError
@@ -125,7 +126,7 @@ testGHCVer ver addMakeArgs = do
 
   dlInfo <-
     preview (ix GHC % ix ver % viTestDL % _Just) dls
-      ?? NoDownload
+      ?? NoDownload ver GHC Nothing
 
   liftE $ testGHCBindist dlInfo ver addMakeArgs
 
@@ -145,7 +146,7 @@ testGHCBindist :: ( MonadFail m
                   , MonadUnliftIO m
                   )
                => DownloadInfo
-               -> Version
+               -> GHCTargetVersion
                -> [T.Text]
                -> Excepts
                     '[ DigestError
@@ -182,7 +183,7 @@ testPackedGHC :: ( MonadMask m
                  )
               => FilePath          -- ^ Path to the packed GHC bindist
               -> Maybe TarDir      -- ^ Subdir of the archive
-              -> Version           -- ^ The GHC version
+              -> GHCTargetVersion  -- ^ The GHC version
               -> [T.Text]          -- ^ additional make args
               -> Excepts
                    '[ ArchiveResult, UnknownArchive, TarDirDoesNotExist, TestFailed ] m ()
@@ -208,19 +209,21 @@ testUnpackedGHC :: ( MonadReader env m
                    , MonadIO m
                    )
                 => GHCupPath         -- ^ Path to the unpacked GHC bindist (where the make file resides)
-                -> Version           -- ^ The GHC version
+                -> GHCTargetVersion  -- ^ The GHC version
                 -> [T.Text]          -- ^ additional configure args for bindist
                 -> Excepts '[ProcessError] m ()
-testUnpackedGHC path ver addMakeArgs = do
-  lift $ logInfo $ "Testing GHC version " <> prettyVer ver <> "!"
-  ghcDir <- lift $ ghcupGHCDir (mkTVer ver)
+testUnpackedGHC path tver addMakeArgs = do
+  lift $ logInfo $ "Testing GHC version " <> tVerToText tver <> "!"
+  ghcDir <- lift $ ghcupGHCDir tver
   let ghcBinDir = fromGHCupPath ghcDir </> "bin"
   env <- liftIO $ addToPath ghcBinDir False
 
   lEM $ make' (fmap T.unpack addMakeArgs)
               (Just $ fromGHCupPath path)
               "ghc-test"
-              (Just $ ("STAGE1_GHC", "ghc-" <> T.unpack (prettyVer ver)) : env)
+              (Just $ ("STAGE1_GHC", maybe "" (T.unpack . (<> "-")) (_tvTarget tver)
+                                     <> "ghc-"
+                                     <> T.unpack (prettyVer $ _tvVersion tver)) : env)
   pure ()
 
 
@@ -243,7 +246,7 @@ fetchGHCSrc :: ( MonadFail m
                , MonadIO m
                , MonadUnliftIO m
                )
-            => Version
+            => GHCTargetVersion
             -> Maybe FilePath
             -> Excepts
                  '[ DigestError
@@ -258,7 +261,7 @@ fetchGHCSrc v mfp = do
   GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
   dlInfo <-
     preview (ix GHC % ix v % viSourceDL % _Just) dls
-      ?? NoDownload
+      ?? NoDownload v GHC Nothing
   liftE $ downloadCached' dlInfo Nothing mfp
 
 
@@ -283,7 +286,7 @@ installGHCBindist :: ( MonadFail m
                      , MonadUnliftIO m
                      )
                   => DownloadInfo    -- ^ where/how to download
-                  -> Version         -- ^ the version to install
+                  -> GHCTargetVersion -- ^ the version to install
                   -> InstallDir
                   -> Bool            -- ^ Force install
                   -> [T.Text]        -- ^ additional configure args for bindist
@@ -306,10 +309,8 @@ installGHCBindist :: ( MonadFail m
                         ]
                        m
                        ()
-installGHCBindist dlinfo ver installDir forceInstall addConfArgs = do
-  let tver = mkTVer ver
-
-  lift $ logDebug $ "Requested to install GHC with " <> prettyVer ver
+installGHCBindist dlinfo tver installDir forceInstall addConfArgs = do
+  lift $ logDebug $ "Requested to install GHC with " <> tVerToText tver
 
   regularGHCInstalled <- lift $ ghcInstalled tver
 
@@ -317,7 +318,7 @@ installGHCBindist dlinfo ver installDir forceInstall addConfArgs = do
     | not forceInstall
     , regularGHCInstalled
     , GHCupInternal <- installDir -> do
-        throwE $ AlreadyInstalled GHC ver
+        throwE $ AlreadyInstalled GHC (_tvVersion tver)
 
     | forceInstall
     , regularGHCInstalled
@@ -336,12 +337,12 @@ installGHCBindist dlinfo ver installDir forceInstall addConfArgs = do
   case installDir of
     IsolateDir isoDir -> do                        -- isolated install
       lift $ logInfo $ "isolated installing GHC to " <> T.pack isoDir
-      liftE $ installPackedGHC dl (view dlSubdir dlinfo) (IsolateDirResolved isoDir) ver forceInstall addConfArgs
+      liftE $ installPackedGHC dl (view dlSubdir dlinfo) (IsolateDirResolved isoDir) tver forceInstall addConfArgs
     GHCupInternal -> do                            -- regular install
       -- prepare paths
       ghcdir <- lift $ ghcupGHCDir tver
 
-      liftE $ installPackedGHC dl (view dlSubdir dlinfo) (GHCupDir ghcdir) ver forceInstall addConfArgs
+      liftE $ installPackedGHC dl (view dlSubdir dlinfo) (GHCupDir ghcdir) tver forceInstall addConfArgs
 
       -- make symlinks & stuff when regular install,
       liftE $ postGHCInstall tver
@@ -375,7 +376,7 @@ installPackedGHC :: ( MonadMask m
                  => FilePath          -- ^ Path to the packed GHC bindist
                  -> Maybe TarDir      -- ^ Subdir of the archive
                  -> InstallDirResolved
-                 -> Version           -- ^ The GHC version
+                 -> GHCTargetVersion  -- ^ The GHC version
                  -> Bool              -- ^ Force install
                  -> [T.Text]          -- ^ additional configure args for bindist
                  -> Excepts
@@ -423,26 +424,22 @@ installUnpackedGHC :: ( MonadReader env m
                       )
                    => GHCupPath           -- ^ Path to the unpacked GHC bindist (where the configure script resides)
                    -> InstallDirResolved  -- ^ Path to install to
-                   -> Version             -- ^ The GHC version
+                   -> GHCTargetVersion    -- ^ The GHC version
                    -> Bool                -- ^ Force install
                    -> [T.Text]          -- ^ additional configure args for bindist
                    -> Excepts '[ProcessError, MergeFileTreeError] m ()
-installUnpackedGHC path inst ver forceInstall addConfArgs
+installUnpackedGHC path inst tver forceInstall addConfArgs
   | isWindows = do
       lift $ logInfo "Installing GHC (this may take a while)"
       -- Windows bindists are relocatable and don't need
       -- to run configure.
       -- We also must make sure to preserve mtime to not confuse ghc-pkg.
-      liftE $ mergeFileTree path inst GHC (mkTVer ver) $ \source dest -> do
-        mtime <- liftIO $ ifM (pathIsSymbolicLink source) (pure Nothing) (Just <$> getModificationTime source)
-        when forceInstall $ hideError doesNotExistErrorType $ hideError InappropriateType $ recycleFile dest
-        liftIO $ moveFilePortable source dest
-        forM_ mtime $ liftIO . setModificationTime dest
+      liftE $ mergeGHCFileTree path inst tver forceInstall
   | otherwise = do
       PlatformRequest {..} <- lift getPlatformReq
 
       let ldOverride
-           | ver >= [vver|8.2.2|]
+           | _tvVersion tver >= [vver|8.2.2|]
            , _rPlatform `elem` [Linux Alpine, Darwin]
            = ["--disable-ld-override"]
            | otherwise
@@ -451,7 +448,7 @@ installUnpackedGHC path inst ver forceInstall addConfArgs
       lift $ logInfo "Installing GHC (this may take a while)"
       lEM $ execLogged "sh"
                        ("./configure" : ("--prefix=" <> fromInstallDir inst)
-                        : (ldOverride <> (T.unpack <$> addConfArgs))
+                        : (maybe mempty (\x -> ["--target=" <> T.unpack x]) (_tvTarget tver) <> ldOverride <> (T.unpack <$> addConfArgs))
                        )
                        (Just $ fromGHCupPath path)
                        "ghc-configure"
@@ -459,17 +456,44 @@ installUnpackedGHC path inst ver forceInstall addConfArgs
       tmpInstallDest <- lift withGHCupTmpDir
       lEM $ make ["DESTDIR=" <> fromGHCupPath tmpInstallDest, "install"] (Just $ fromGHCupPath path)
       liftE $ catchWarn $ lEM @_ @'[ProcessError] $ darwinNotarization _rPlatform (fromGHCupPath tmpInstallDest)
-      liftE $ mergeFileTree (tmpInstallDest `appendGHCupPath` dropDrive (fromInstallDir inst))
+      liftE $ mergeGHCFileTree (tmpInstallDest `appendGHCupPath` dropDrive (fromInstallDir inst)) inst tver forceInstall
+      pure ()
+
+
+mergeGHCFileTree :: ( MonadReader env m
+                    , HasPlatformReq env
+                    , HasDirs env
+                    , HasSettings env
+                    , MonadThrow m
+                    , HasLog env
+                    , MonadIO m
+                    , MonadUnliftIO m
+                    , MonadMask m
+                    , MonadResource m
+                    , MonadFail m
+                    )
+                 => GHCupPath           -- ^ Path to the root of the tree
+                 -> InstallDirResolved  -- ^ Path to install to
+                 -> GHCTargetVersion    -- ^ The GHC version
+                 -> Bool                -- ^ Force install
+                 -> Excepts '[MergeFileTreeError] m ()
+mergeGHCFileTree root inst tver forceInstall
+  | isWindows = do
+      liftE $ mergeFileTree root inst GHC tver $ \source dest -> do
+        mtime <- liftIO $ ifM (pathIsSymbolicLink source) (pure Nothing) (Just <$> getModificationTime source)
+        when forceInstall $ hideError doesNotExistErrorType $ hideError InappropriateType $ recycleFile dest
+        liftIO $ moveFilePortable source dest
+        forM_ mtime $ liftIO . setModificationTime dest
+  | otherwise = do
+      liftE $ mergeFileTree root
         inst
         GHC
-        (mkTVer ver)
+        tver
         (\f t -> liftIO $ do
             mtime <- ifM (pathIsSymbolicLink f) (pure Nothing) (Just <$> getModificationTime f)
             install f t (not forceInstall)
             forM_ mtime $ setModificationTime t)
 
-      pure ()
-
 
 -- | Installs GHC into @~\/.ghcup\/ghc/\<ver\>@ and places the
 -- following symlinks in @~\/.ghcup\/bin@:
@@ -489,7 +513,7 @@ installGHCBin :: ( MonadFail m
                  , MonadIO m
                  , MonadUnliftIO m
                  )
-              => Version         -- ^ the version to install
+              => GHCTargetVersion -- ^ the version to install
               -> InstallDir
               -> Bool            -- ^ force install
               -> [T.Text]        -- ^ additional configure args for bindist
@@ -512,9 +536,9 @@ installGHCBin :: ( MonadFail m
                     ]
                    m
                    ()
-installGHCBin ver installDir forceInstall addConfArgs = do
-  dlinfo <- liftE $ getDownloadInfo GHC ver
-  liftE $ installGHCBindist dlinfo ver installDir forceInstall addConfArgs
+installGHCBin tver installDir forceInstall addConfArgs = do
+  dlinfo <- liftE $ getDownloadInfo' GHC tver
+  liftE $ installGHCBindist dlinfo tver installDir forceInstall addConfArgs
 
 
 
@@ -708,7 +732,7 @@ rmGHCVer ver = do
     Just files -> do
       lift $ logInfo $ "Removing files safely from: " <> T.pack dir
       forM_ files (lift . hideError NoSuchThing . recycleFile . (\f -> dir </> dropDrive f))
-      removeEmptyDirsRecursive dir
+      hideError UnsatisfiedConstraints $ removeEmptyDirsRecursive dir
       survivors <- liftIO $ hideErrorDef [doesNotExistErrorType] [] $ listDirectory dir
       f <- recordedInstallationFile GHC ver
       lift $ recycleFile f
@@ -755,7 +779,8 @@ compileGHC :: ( MonadMask m
               , MonadUnliftIO m
               , MonadFail m
               )
-           => GHCVer GHCTargetVersion
+           => GHCVer
+           -> Maybe Text               -- ^ cross target
            -> Maybe Version            -- ^ overwrite version
            -> Either Version FilePath  -- ^ version to bootstrap with
            -> Maybe Int                -- ^ jobs
@@ -763,7 +788,7 @@ compileGHC :: ( MonadMask m
            -> Maybe (Either FilePath [URI])  -- ^ patches
            -> [Text]                   -- ^ additional args to ./configure
            -> Maybe String             -- ^ build flavour
-           -> Bool
+           -> Maybe BuildSystem
            -> InstallDir
            -> Excepts
                 '[ AlreadyInstalled
@@ -792,20 +817,21 @@ compileGHC :: ( MonadMask m
                  ]
                 m
                 GHCTargetVersion
-compileGHC targetGhc ov bstrap jobs mbuildConfig patches aargs buildFlavour hadrian installDir
+compileGHC targetGhc crossTarget ov bstrap jobs mbuildConfig patches aargs buildFlavour buildSystem installDir
   = do
-    PlatformRequest { .. } <- lift getPlatformReq
+    pfreq@PlatformRequest { .. } <- lift getPlatformReq
     GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
 
     (workdir, tmpUnpack, tver) <- case targetGhc of
       -- unpack from version tarball
-      SourceDist tver -> do
-        lift $ logDebug $ "Requested to compile: " <> tVerToText tver <> " with " <> either prettyVer T.pack bstrap
+      SourceDist ver -> do
+        lift $ logDebug $ "Requested to compile: " <> prettyVer ver <> " with " <> either prettyVer T.pack bstrap
 
         -- download source tarball
+        let tver = mkTVer ver
         dlInfo <-
-          preview (ix GHC % ix (tver ^. tvVersion) % viSourceDL % _Just) dls
-            ?? NoDownload
+          preview (ix GHC % ix tver % viSourceDL % _Just) dls
+            ?? NoDownload tver GHC (Just pfreq)
         dl <- liftE $ downloadCached dlInfo Nothing
 
         -- unpack
@@ -818,7 +844,7 @@ compileGHC targetGhc ov bstrap jobs mbuildConfig patches aargs buildFlavour hadr
                          (view dlSubdir dlInfo)
         liftE $ applyAnyPatch patches (fromGHCupPath workdir)
 
-        pure (workdir, tmpUnpack, Just tver)
+        pure (workdir, tmpUnpack, Just (GHCTargetVersion crossTarget ver))
 
       RemoteDist uri -> do
         lift $ logDebug $ "Requested to compile (from uri): " <> T.pack (show uri)
@@ -842,7 +868,7 @@ compileGHC targetGhc ov bstrap jobs mbuildConfig patches aargs buildFlavour hadr
 
         let workdir = appendGHCupPath tmpUnpack (takeDirectory bf)
 
-        pure (workdir, tmpUnpack, mkTVer <$> tver)
+        pure (workdir, tmpUnpack, GHCTargetVersion crossTarget <$> tver)
 
       -- clone from git
       GitDist GitBranch{..} -> do
@@ -899,12 +925,12 @@ compileGHC targetGhc ov bstrap jobs mbuildConfig patches aargs buildFlavour hadr
 
           pure tver
 
-        pure (tmpUnpack, tmpUnpack, mkTVer <$> tver)
+        pure (tmpUnpack, tmpUnpack, GHCTargetVersion crossTarget <$> tver)
     -- the version that's installed may differ from the
     -- compiled version, so the user can overwrite it
-    installVer <- if | Just ov'   <- ov   -> pure (mkTVer ov')
+    installVer <- if | Just ov'   <- ov   -> pure (GHCTargetVersion crossTarget ov')
                      | Just tver' <- tver -> pure tver'
-                     | otherwise          -> fail "Newer GHCs don't support discovering the version in git. Complain to GHC devs: https://gitlab.haskell.org/ghc/ghc/-/issues/22322"
+                     | otherwise          -> fail "No GHC version given and couldn't detect version. Giving up..."
 
     alreadyInstalled <- lift $ ghcInstalled installVer
     alreadySet <- fmap (== Just installVer) $ lift $ ghcSet (_tvTarget installVer)
@@ -923,16 +949,31 @@ compileGHC targetGhc ov bstrap jobs mbuildConfig patches aargs buildFlavour hadr
       IsolateDir isoDir -> pure $ IsolateDirResolved isoDir
       GHCupInternal -> GHCupDir <$> lift (ghcupGHCDir installVer)
 
-    (mBindist, bmk) <- liftE $ runBuildAction
+    mBindist <- liftE $ runBuildAction
       tmpUnpack
       (do
-        b <- if hadrian
-             -- prefer 'tver', because the real version carries out compatibility checks
-             -- we don't want the user to do funny things with it
-             then compileHadrianBindist (fromMaybe installVer tver) (fromGHCupPath workdir) ghcdir
-             else compileMakeBindist (fromMaybe installVer tver) (fromGHCupPath workdir) ghcdir
-        bmk <- liftIO $ handleIO (\_ -> pure "") $ B.readFile (build_mk $ fromGHCupPath workdir)
-        pure (b, bmk)
+        -- prefer 'tver', because the real version carries out compatibility checks
+        -- we don't want the user to do funny things with it
+        let doHadrian = compileHadrianBindist (fromMaybe installVer tver) (fromGHCupPath workdir) ghcdir
+            doMake    = compileMakeBindist (fromMaybe installVer tver) (fromGHCupPath workdir) ghcdir
+        case buildSystem of
+          Just Hadrian -> do
+            lift $ logInfo "Requested to use Hadrian"
+            liftE doHadrian
+          Just Make -> do
+            lift $ logInfo "Requested to use Make"
+            doMake
+          Nothing -> do
+            supportsHadrian <- liftE $ catchE @HadrianNotFound @'[HadrianNotFound] @'[] (\_ -> return False)
+                                 $ fmap (const True)
+                                 $ findHadrianFile (fromGHCupPath workdir)
+            if supportsHadrian
+            then do
+              lift $ logInfo "Detected Hadrian"
+              liftE doHadrian
+            else do
+              lift $ logInfo "Detected Make"
+              doMake
       )
 
     case installDir of
@@ -948,12 +989,10 @@ compileGHC targetGhc ov bstrap jobs mbuildConfig patches aargs buildFlavour hadr
       liftE $ installPackedGHC bindist
                                (Just $ RegexDir "ghc-.*")
                                ghcdir
-                               (installVer ^. tvVersion)
+                               installVer
                                False       -- not a force install, since we already overwrite when compiling.
                                []
 
-    liftIO $ B.writeFile (fromInstallDir ghcdir </> ghcUpSrcBuiltFile) bmk
-
     case installDir of
       -- set and make symlinks for regular (non-isolated) installs
       GHCupInternal -> do
@@ -976,20 +1015,29 @@ compileGHC targetGhc ov bstrap jobs mbuildConfig patches aargs buildFlavour hadr
             => GHCupPath
             -> Excepts '[ProcessError, ParseError] m Version
   getGHCVer tmpUnpack = do
-    lEM $ execWithGhcEnv "python3" ["./boot"] (Just $ fromGHCupPath tmpUnpack) "ghc-bootstrap"
-    lEM $ execWithGhcEnv "sh" ["./configure"] (Just $ fromGHCupPath tmpUnpack) "ghc-bootstrap"
-    CapturedProcess {..} <- lift $ makeOut
-      ["show!", "--quiet", "VALUE=ProjectVersion" ] (Just $ fromGHCupPath tmpUnpack)
-    case _exitCode of
-      ExitSuccess -> either (throwE . ParseError . show) pure . MP.parse ghcProjectVersion "" . T.pack . stripNewlineEnd . T.unpack . decUTF8Safe' $ _stdOut
-      ExitFailure c -> throwE $ NonZeroExit c "make" ["show!", "--quiet", "VALUE=ProjectVersion" ]
+    lEM $ execLogged "python3" ["./boot"] (Just $ fromGHCupPath tmpUnpack) "ghc-bootstrap" Nothing
+    lEM $ configureWithGhcBoot Nothing [] (Just $ fromGHCupPath tmpUnpack) "ghc-bootstrap"
+    let versionFile = fromGHCupPath tmpUnpack </> "VERSION"
+    hasVersionFile <- liftIO $ doesFileExist versionFile
+    if hasVersionFile
+    then do
+      lift $ logDebug "Detected VERSION file, trying to extract"
+      contents <- liftIO $ readFile versionFile
+      either (throwE . ParseError . show) pure . MP.parse version' "" . T.pack . stripNewlineEnd $ contents
+    else do
+      lift $ logDebug "Didn't detect VERSION file, trying to extract via legacy 'make'"
+      CapturedProcess {..} <- lift $ makeOut
+        ["show!", "--quiet", "VALUE=ProjectVersion" ] (Just $ fromGHCupPath tmpUnpack)
+      case _exitCode of
+        ExitSuccess -> either (throwE . ParseError . show) pure . MP.parse ghcProjectVersion "" . T.pack . stripNewlineEnd . T.unpack . decUTF8Safe' $ _stdOut
+        ExitFailure c -> throwE $ NonZeroExit c "make" ["show!", "--quiet", "VALUE=ProjectVersion" ]
 
   defaultConf =
     let cross_mk = $(LitE . StringL <$> (qAddDependentFile "data/build_mk/cross" >> runIO (readFile "data/build_mk/cross")))
         default_mk = $(LitE . StringL <$> (qAddDependentFile "data/build_mk/default" >> runIO (readFile "data/build_mk/default")))
-    in case targetGhc of
-         SourceDist (GHCTargetVersion (Just _) _) -> cross_mk
-         _ -> default_mk
+    in case crossTarget of
+         Just _ -> cross_mk
+         _      -> default_mk
 
   compileHadrianBindist :: ( MonadReader env m
                            , HasDirs env
@@ -1015,18 +1063,17 @@ compileGHC targetGhc ov bstrap jobs mbuildConfig patches aargs buildFlavour hadr
                              m
                              (Maybe FilePath)  -- ^ output path of bindist, None for cross
   compileHadrianBindist tver workdir ghcdir = do
-    lEM $ execWithGhcEnv "python3" ["./boot"] (Just workdir) "ghc-bootstrap"
-
     liftE $ configureBindist tver workdir ghcdir
 
     lift $ logInfo "Building (this may take a while)..."
     hadrian_build <- liftE $ findHadrianFile workdir
-    lEM $ execWithGhcEnv hadrian_build
+    lEM $ execLogged hadrian_build
                           ( maybe [] (\j  -> ["-j" <> show j]         ) jobs
                          ++ maybe [] (\bf -> ["--flavour=" <> bf]) buildFlavour
                          ++ ["binary-dist"]
                           )
                           (Just workdir) "ghc-make"
+                          Nothing
     [tar] <- liftIO $ findFiles
       (workdir </> "_build" </> "bindist")
       (makeRegexOpts compExtended
@@ -1059,6 +1106,9 @@ compileGHC targetGhc ov bstrap jobs mbuildConfig patches aargs buildFlavour hadr
                         , HasLog env
                         , MonadIO m
                         , MonadFail m
+                        , MonadMask m
+                        , MonadUnliftIO m
+                        , MonadResource m
                         )
                      => GHCTargetVersion
                      -> FilePath
@@ -1070,6 +1120,7 @@ compileGHC targetGhc ov bstrap jobs mbuildConfig patches aargs buildFlavour hadr
                            , PatchFailed
                            , ProcessError
                            , NotFoundInPATH
+                           , MergeFileTreeError
                            , CopyError]
                           m
                        (Maybe FilePath)  -- ^ output path of bindist, None for cross
@@ -1091,7 +1142,9 @@ compileGHC targetGhc ov bstrap jobs mbuildConfig patches aargs buildFlavour hadr
 
     if | isCross tver -> do
           lift $ logInfo "Installing cross toolchain..."
-          lEM $ make ["install"] (Just workdir)
+          tmpInstallDest <- lift withGHCupTmpDir
+          lEM $ make ["DESTDIR=" <> fromGHCupPath tmpInstallDest, "install"] (Just workdir)
+          liftE $ mergeGHCFileTree (tmpInstallDest `appendGHCupPath` dropDrive (fromInstallDir ghcdir)) ghcdir tver True
           pure Nothing
        | otherwise -> do
           lift $ logInfo "Creating bindist..."
@@ -1164,8 +1217,8 @@ compileGHC targetGhc ov bstrap jobs mbuildConfig patches aargs buildFlavour hadr
     let lines' = fmap T.strip . T.lines $ decUTF8Safe c
 
    -- for cross, we need Stage1Only
-    case targetGhc of
-      SourceDist (GHCTargetVersion (Just _) _) -> when ("Stage1Only = YES" `notElem` lines') $ throwE
+    case crossTarget of
+      Just _ -> when ("Stage1Only = YES" `notElem` lines') $ throwE
         (InvalidBuildConfig
           [s|Cross compiling needs to be a Stage1 build, add "Stage1Only = YES" to your config!|]
         )
@@ -1209,64 +1262,50 @@ compileGHC targetGhc ov bstrap jobs mbuildConfig patches aargs buildFlavour hadr
                         ()
   configureBindist tver workdir (fromInstallDir -> ghcdir) = do
     lift $ logInfo [s|configuring build|]
-
-    if | _tvVersion tver >= [vver|8.8.0|] -> do
-          lEM $ execWithGhcEnv
-            "sh"
-            ("./configure" :  maybe mempty
-                      (\x -> ["--target=" <> T.unpack x])
-                      (_tvTarget tver)
-            ++ ["--prefix=" <> ghcdir]
-            ++ (if isWindows then ["--enable-tarballs-autodownload"] else [])
-            ++ fmap T.unpack aargs
-            )
-            (Just workdir)
-            "ghc-conf"
-       | otherwise -> do
-        lEM $ execLogged
-          "sh"
-          (  [ "./configure", "--with-ghc=" <> either id id bghc
-             ]
-          ++ maybe mempty
-                   (\x -> ["--target=" <> T.unpack x])
-                   (_tvTarget tver)
-          ++ ["--prefix=" <> ghcdir]
-          ++ (if isWindows then ["--enable-tarballs-autodownload"] else [])
-          ++ fmap T.unpack aargs
-          )
-          (Just workdir)
-          "ghc-conf"
-          Nothing
+    lEM $ configureWithGhcBoot (Just tver)
+      (maybe mempty
+                (\x -> ["--target=" <> T.unpack x])
+                (_tvTarget tver)
+      ++ ["--prefix=" <> ghcdir]
+      ++ (if isWindows then ["--enable-tarballs-autodownload"] else [])
+      ++ fmap T.unpack aargs
+      )
+      (Just workdir)
+      "ghc-conf"
     pure ()
 
-  execWithGhcEnv :: ( MonadReader env m
-                    , HasSettings env
-                    , HasDirs env
-                    , HasLog env
-                    , MonadIO m
-                    , MonadThrow m)
-                 => FilePath         -- ^ thing to execute
-                 -> [String]         -- ^ args for the thing
-                 -> Maybe FilePath   -- ^ optionally chdir into this
-                 -> FilePath         -- ^ log filename (opened in append mode)
-                 -> m (Either ProcessError ())
-  execWithGhcEnv fp args dir logf = do
-    env <- ghcEnv
-    execLogged fp args dir logf (Just env)
+  configureWithGhcBoot :: ( MonadReader env m
+                          , HasSettings env
+                          , HasDirs env
+                          , HasLog env
+                          , MonadIO m
+                          , MonadThrow m)
+                       => Maybe GHCTargetVersion
+                       -> [String]         -- ^ args for configure
+                       -> Maybe FilePath   -- ^ optionally chdir into this
+                       -> FilePath         -- ^ log filename (opened in append mode)
+                       -> m (Either ProcessError ())
+  configureWithGhcBoot mtver args dir logf = do
+    let execNew = execLogged
+                    "sh"
+                    ("./configure" : ("GHC=" <> bghc) : args)
+                    dir
+                    logf
+                    Nothing
+        execOld = execLogged
+                   "sh"
+                   ("./configure" : ("--with-ghc=" <> bghc) : args)
+                   dir
+                   logf
+                   Nothing
+    if | Just tver <- mtver
+       , _tvVersion tver >= [vver|8.8.0|] -> execNew
+       | Nothing   <- mtver               -> execNew -- need some default for git checkouts where we don't know yet
+       | otherwise                        -> execOld
 
   bghc = case bstrap of
-           Right g    -> Right g
-           Left  bver -> Left ("ghc-" <> (T.unpack . prettyVer $ bver) <> exeExt)
-
-  ghcEnv :: (MonadThrow m, MonadIO m) => m [(String, String)]
-  ghcEnv = do
-    cEnv <- liftIO getEnvironment
-    bghcPath <- case bghc of
-      Right ghc' -> pure ghc'
-      Left  bver -> do
-        spaths <- liftIO getSearchPath
-        throwMaybeM (NotFoundInPATH bver) $ liftIO (searchPath spaths bver)
-    pure (("GHC", bghcPath) : cEnv)
+           Right g    -> g
+           Left  bver -> "ghc-" <> (T.unpack . prettyVer $ bver) <> exeExt
 
 
 

lib/GHCup/HLS.hs

@@ -43,6 +43,7 @@ import           Control.Monad.Trans.Resource
 import           Data.ByteString                ( ByteString )
 import           Data.Either
 import           Data.List
+import           Data.Ord
 import           Data.Maybe
 import           Data.String                    ( fromString )
 import           Data.Text                      ( Text )
@@ -74,6 +75,7 @@ data HLSVer = SourceDist Version
             | GitDist GitBranch
             | HackageDist Version
             | RemoteDist URI
+            deriving (Eq, Show)
 
 
 
@@ -353,7 +355,7 @@ compileHLS :: ( MonadMask m
                        , NotInstalled
                        ] m Version
 compileHLS targetHLS ghcs jobs ov installDir cabalProject cabalProjectLocal updateCabal patches cabalArgs = do
-  PlatformRequest { .. } <- lift getPlatformReq
+  pfreq@PlatformRequest { .. } <- lift getPlatformReq
   GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
   Dirs { .. } <- lift getDirs
 
@@ -368,8 +370,8 @@ compileHLS targetHLS ghcs jobs ov installDir cabalProject cabalProjectLocal upda
 
       -- download source tarball
       dlInfo <-
-        preview (ix HLS % ix tver % viSourceDL % _Just) dls
-          ?? NoDownload
+        preview (ix HLS % ix (mkTVer tver) % viSourceDL % _Just) dls
+          ?? NoDownload (mkTVer tver) HLS (Just pfreq)
       dl <- liftE $ downloadCached dlInfo Nothing
 
       -- unpack
@@ -704,7 +706,7 @@ rmHLSVer ver = do
   when (Just ver == isHlsSet) $ do
     -- set latest hls
     hlsVers <- lift $ fmap rights getInstalledHLSs
-    case headMay . reverse . sort $ hlsVers of
+    case headMay . sortBy (comparing Down) $ hlsVers of
       Just latestver -> liftE $ setHLS latestver SetHLSOnly Nothing
       Nothing        -> pure ()
 
@@ -715,8 +717,10 @@ getCabalVersion fp = do
   gpd <- case parseGenericPackageDescriptionMaybe contents of
            Nothing -> fail $ "could not parse cabal file: " <> fp
            Just r -> pure r
-  let tver = (\c -> Version Nothing c [] Nothing)
-           . NE.fromList . fmap (NE.fromList . (:[]) . digits . fromIntegral)
+  let tver = (\c -> Version Nothing c Nothing Nothing)
+           . Chunks
+           . NE.fromList
+           . fmap (Numeric . fromIntegral)
            . versionNumbers
            . pkgVersion
            . package

lib/GHCup/List.hs

@@ -36,6 +36,7 @@ import           Data.Either
 import           Data.List
 import           Data.Maybe
 import           Data.Text                      ( Text )
+import           Data.Time.Calendar             ( Day )
 import           Data.Versions                hiding ( patch )
 import           Haskus.Utils.Variant.Excepts
 import           Optics
@@ -61,10 +62,10 @@ import qualified Data.Text                     as T
 
 
 -- | Filter data type for 'listVersions'.
-data ListCriteria = ListInstalled
-                  | ListSet
-                  | ListAvailable
-                  deriving Show
+data ListCriteria = ListInstalled  Bool
+                  | ListSet        Bool
+                  | ListAvailable  Bool
+                  deriving (Eq, Show)
 
 -- | A list result describes a single tool version
 -- and various of its properties.
@@ -75,16 +76,16 @@ data ListResult = ListResult
   , lTag       :: [Tag]
   , lInstalled :: Bool
   , lSet       :: Bool -- ^ currently active version
-  , fromSrc    :: Bool -- ^ compiled from source
   , lStray     :: Bool -- ^ not in download info
   , lNoBindist :: Bool -- ^ whether the version is available for this platform/arch
   , hlsPowered :: Bool
+  , lReleaseDay :: Maybe Day
   }
   deriving (Eq, Ord, Show)
 
 
 -- | Extract all available tool versions and their tags.
-availableToolVersions :: GHCupDownloads -> Tool -> Map.Map Version VersionInfo
+availableToolVersions :: GHCupDownloads -> Tool -> Map.Map GHCTargetVersion VersionInfo
 availableToolVersions av tool = view
   (at tool % non Map.empty)
   av
@@ -93,19 +94,22 @@ availableToolVersions av tool = view
 -- | List all versions from the download info, as well as stray
 -- versions.
 listVersions :: ( MonadCatch m
-                , HasLog env
-                , MonadThrow m
-                , HasLog env
-                , MonadIO m
-                , MonadReader env m
-                , HasDirs env
-                , HasPlatformReq env
-                , HasGHCupInfo env
-                )
-             => Maybe Tool
-             -> Maybe ListCriteria
-             -> m [ListResult]
-listVersions lt' criteria = do
+                             , HasLog env
+                             , MonadThrow m
+                             , HasLog env
+                             , MonadIO m
+                             , MonadReader env m
+                             , HasDirs env
+                             , HasPlatformReq env
+                             , HasGHCupInfo env
+                             )
+                          => Maybe Tool
+                          -> [ListCriteria]
+                          -> Bool
+                          -> Bool
+                          -> (Maybe Day, Maybe Day)
+                          -> m [ListResult]
+listVersions lt' criteria hideOld showNightly days = do
   -- some annoying work to avoid too much repeated IO
   cSet <- cabalSet
   cabals <- getInstalledCabals
@@ -129,13 +133,13 @@ listVersions lt' criteria = do
             slr <- strayGHCs avTools
             pure (sort (slr ++ lr))
           Cabal -> do
-            slr <- strayCabals avTools cSet cabals
+            slr <- strayCabals (Map.mapKeys _tvVersion avTools) cSet cabals
             pure (sort (slr ++ lr))
           HLS -> do
-            slr <- strayHLS avTools hlsSet' hlses
+            slr <- strayHLS (Map.mapKeys _tvVersion avTools) hlsSet' hlses
             pure (sort (slr ++ lr))
           Stack -> do
-            slr <- strayStacks avTools sSet stacks
+            slr <- strayStacks (Map.mapKeys _tvVersion avTools) sSet stacks
             pure (sort (slr ++ lr))
           GHCup -> do
             let cg = maybeToList $ currentGHCup avTools
@@ -154,42 +158,28 @@ listVersions lt' criteria = do
                , HasLog env
                , MonadIO m
                )
-            => Map.Map Version VersionInfo
+            => Map.Map GHCTargetVersion VersionInfo
             -> m [ListResult]
   strayGHCs avTools = do
     ghcs <- getInstalledGHCs
     fmap catMaybes $ forM ghcs $ \case
-      Right tver@GHCTargetVersion{ _tvTarget = Nothing, .. } -> do
-        case Map.lookup _tvVersion avTools of
+      Right tver@GHCTargetVersion{ .. } -> do
+        case Map.lookup tver avTools of
           Just _  -> pure Nothing
           Nothing -> do
-            lSet    <- fmap (maybe False (\(GHCTargetVersion _ v ) -> v == _tvVersion)) $ ghcSet Nothing
-            fromSrc <- ghcSrcInstalled tver
+            lSet    <- fmap (maybe False (\(GHCTargetVersion _ v ) -> v == _tvVersion)) $ ghcSet _tvTarget
             hlsPowered <- fmap (elem _tvVersion) hlsGHCVersions
             pure $ Just $ ListResult
               { lTool      = GHC
               , lVer       = _tvVersion
-              , lCross     = Nothing
+              , lCross     = _tvTarget
               , lTag       = []
               , lInstalled = True
-             , lStray     = isNothing (Map.lookup _tvVersion avTools)
+              , lStray     = isNothing (Map.lookup tver avTools)
               , lNoBindist = False
+              , lReleaseDay = Nothing
               , ..
               }
-      Right tver@GHCTargetVersion{ .. } -> do
-        lSet    <- fmap (maybe False (\(GHCTargetVersion _ v ) -> v == _tvVersion)) $ ghcSet _tvTarget
-        fromSrc <- ghcSrcInstalled tver
-        hlsPowered <- fmap (elem _tvVersion) hlsGHCVersions
-        pure $ Just $ ListResult
-          { lTool      = GHC
-          , lVer       = _tvVersion
-          , lCross     = _tvTarget
-          , lTag       = []
-          , lInstalled = True
-          , lStray     = True -- NOTE: cross currently cannot be installed via bindist
-          , lNoBindist = False
-          , ..
-          }
       Left e -> do
         logWarn
           $ "Could not parse version of stray directory" <> T.pack e
@@ -221,8 +211,8 @@ listVersions lt' criteria = do
               , lInstalled = True
               , lStray     = isNothing (Map.lookup ver avTools)
               , lNoBindist = False
-              , fromSrc    = False -- actually, we don't know :>
               , hlsPowered = False
+              , lReleaseDay = Nothing
               , ..
               }
       Left e -> do
@@ -255,8 +245,8 @@ listVersions lt' criteria = do
               , lInstalled = True
               , lStray     = isNothing (Map.lookup ver avTools)
               , lNoBindist = False
-              , fromSrc    = False -- actually, we don't know :>
               , hlsPowered = False
+              , lReleaseDay = Nothing
               , ..
               }
       Left e -> do
@@ -290,8 +280,8 @@ listVersions lt' criteria = do
               , lInstalled = True
               , lStray     = isNothing (Map.lookup ver avTools)
               , lNoBindist = False
-              , fromSrc    = False -- actually, we don't know :>
               , hlsPowered = False
+              , lReleaseDay = Nothing
               , ..
               }
       Left e -> do
@@ -299,24 +289,24 @@ listVersions lt' criteria = do
           $ "Could not parse version of stray directory" <> T.pack e
         pure Nothing
 
-  currentGHCup :: Map.Map Version VersionInfo -> Maybe ListResult
+  currentGHCup :: Map.Map GHCTargetVersion VersionInfo -> Maybe ListResult
   currentGHCup av =
-    let currentVer = fromJust $ pvpToVersion ghcUpVer ""
+    let currentVer = mkTVer $ fromJust $ pvpToVersion ghcUpVer ""
         listVer    = Map.lookup currentVer av
         latestVer  = fst <$> headOf (getTagged Latest) av
         recommendedVer = fst <$> headOf (getTagged Latest) av
         isOld  = maybe True (> currentVer) latestVer && maybe True (> currentVer) recommendedVer
     in if | Map.member currentVer av -> Nothing
-          | otherwise -> Just $ ListResult { lVer    = currentVer
+          | otherwise -> Just $ ListResult { lVer    = _tvVersion currentVer
                                            , lTag    = maybe (if isOld then [Old] else []) _viTags listVer
                                            , lCross  = Nothing
                                            , lTool   = GHCup
-                                           , fromSrc = False
                                            , lStray  = isNothing listVer
                                            , lSet    = True
                                            , lInstalled = True
                                            , lNoBindist = False
                                            , hlsPowered = False
+                                           , lReleaseDay = Nothing
                                            }
 
   -- NOTE: this are not cross ones, because no bindists
@@ -335,42 +325,41 @@ listVersions lt' criteria = do
                -> [Either FilePath Version]
                -> Maybe Version
                -> [Either FilePath Version]
-               -> (Version, VersionInfo)
+               -> (GHCTargetVersion, VersionInfo)
                -> m ListResult
-  toListResult t cSet cabals hlsSet' hlses stackSet' stacks (v, _viTags -> tags) = do
+  toListResult t cSet cabals hlsSet' hlses stackSet' stacks (tver, VersionInfo{..}) = do
+    let v = _tvVersion tver
     case t of
       GHC -> do
-        lNoBindist <- fmap (isLeft . veitherToEither) $ runE @'[NoDownload] $ getDownloadInfo GHC v
-        let tver = mkTVer v
-        lSet       <- fmap (maybe False (\(GHCTargetVersion _ v') -> v' == v)) $ ghcSet Nothing
+        lNoBindist <- fmap (isLeft . veitherToEither) $ runE @'[NoDownload] $ getDownloadInfo' GHC tver
+        lSet       <- fmap (== Just tver) $ ghcSet (_tvTarget tver)
         lInstalled <- ghcInstalled tver
-        fromSrc    <- ghcSrcInstalled tver
-        hlsPowered <- fmap (elem v) hlsGHCVersions
-        pure ListResult { lVer = v, lCross = Nothing , lTag = tags, lTool = t, lStray = False, .. }
+        hlsPowered <- fmap (elem tver) (fmap mkTVer <$> hlsGHCVersions)
+        pure ListResult { lVer = _tvVersion tver , lCross = _tvTarget tver , lTag = _viTags, lTool = t, lStray = False, lReleaseDay = _viReleaseDay, .. }
       Cabal -> do
         lNoBindist <- fmap (isLeft . veitherToEither) $ runE @'[NoDownload] $ getDownloadInfo Cabal v
         let lSet = cSet == Just v
         let lInstalled = elem v $ rights cabals
         pure ListResult { lVer    = v
                         , lCross  = Nothing
-                        , lTag    = tags
+                        , lTag    = _viTags
                         , lTool   = t
-                        , fromSrc = False
                         , lStray  = False
                         , hlsPowered = False
+                        , lReleaseDay = _viReleaseDay
                         , ..
                         }
       GHCup -> do
         let lSet       = prettyPVP ghcUpVer == prettyVer v
         let lInstalled = lSet
         pure ListResult { lVer    = v
-                        , lTag    = tags
+                        , lTag    = _viTags
                         , lCross  = Nothing
                         , lTool   = t
-                        , fromSrc = False
                         , lStray  = False
                         , lNoBindist = False
                         , hlsPowered = False
+                        , lReleaseDay = _viReleaseDay
                         , ..
                         }
       HLS -> do
@@ -379,11 +368,11 @@ listVersions lt' criteria = do
         let lInstalled = elem v $ rights hlses
         pure ListResult { lVer    = v
                         , lCross  = Nothing
-                        , lTag    = tags
+                        , lTag    = _viTags
                         , lTool   = t
-                        , fromSrc = False
                         , lStray  = False
                         , hlsPowered = False
+                        , lReleaseDay = _viReleaseDay
                         , ..
                         }
       Stack -> do
@@ -392,19 +381,42 @@ listVersions lt' criteria = do
         let lInstalled = elem v $ rights stacks
         pure ListResult { lVer    = v
                         , lCross  = Nothing
-                        , lTag    = tags
+                        , lTag    = _viTags
                         , lTool   = t
-                        , fromSrc = False
                         , lStray  = False
                         , hlsPowered = False
+                        , lReleaseDay = _viReleaseDay
                         , ..
                         }
 
 
   filter' :: [ListResult] -> [ListResult]
-  filter' lr = case criteria of
-    Nothing            -> lr
-    Just ListInstalled -> filter (\ListResult {..} -> lInstalled) lr
-    Just ListSet       -> filter (\ListResult {..} -> lSet) lr
-    Just ListAvailable -> filter (\ListResult {..} -> not lNoBindist) lr
+  filter' = filterNightly . filterOld . filter (\lr -> foldr (\a b -> fromCriteria a lr && b) True criteria) . filterDays
+
+  filterDays :: [ListResult] -> [ListResult]
+  filterDays lrs = case days of
+                     (Nothing, Nothing)    -> lrs
+                     (Just from, Just to') -> filter (\ListResult{..} -> maybe False (\d -> d >= from && d <= to') lReleaseDay) lrs
+                     (Nothing, Just to')   -> filter (\ListResult{..} -> maybe False (<= to')                      lReleaseDay) lrs
+                     (Just from, Nothing)  -> filter (\ListResult{..} -> maybe False (>= from)                     lReleaseDay) lrs
+
+  fromCriteria :: ListCriteria -> ListResult -> Bool
+  fromCriteria lc ListResult{..} = case lc of
+    ListInstalled  b -> f b lInstalled
+    ListSet        b -> f b lSet
+    ListAvailable  b -> f b $ not lNoBindist
+   where
+    f b
+      | b         = id
+      | otherwise = not
+
+  filterOld :: [ListResult] -> [ListResult]
+  filterOld lr
+    | hideOld   = filter (\ListResult {..} -> lInstalled || Old `notElem` lTag) lr
+    | otherwise = lr
+
+  filterNightly :: [ListResult] -> [ListResult]
+  filterNightly lr
+    | showNightly = lr
+    | otherwise   = filter (\ListResult {..} -> lInstalled || (Nightly `notElem` lTag && LatestNightly `notElem` lTag)) lr
 

lib/GHCup/Prelude.hs

@@ -77,8 +77,14 @@ runBothE' a1 a2 = do
       (_       , VLeft e ) -> throwSomeE e
       (VRight _, VRight _) -> pure ()
 
+-- "throwSomeE" function has been upstreamed in haskus-utils-variant-3.3
+-- So, only conditionally include this shim if
+-- haskus-utils-variant version is < 3.3
 
+#if MIN_VERSION_haskus_utils_variant(3,3,0)
+#else
 -- | Throw some exception
 throwSomeE :: forall es' es a m. (Monad m, LiftVariant es' es) => V es' -> Excepts es m a
 {-# INLINABLE throwSomeE #-}
 throwSomeE = Excepts . pure . VLeft . liftVariant
+#endif

lib/GHCup/Prelude/MegaParsec.hs

@@ -91,18 +91,16 @@ ghcTargetVerP =
   verP' :: MP.Parsec Void Text Text
   verP' = do
     v <- version'
-    let startsWithDigists =
+    let startsWithDigits =
           and
             . take 3
-            . concatMap
-              (map
-                (\case
-                  (Digits _) -> True
-                  (Str    _) -> False
-                ) . NE.toList)
+            . map (\case
+                      Numeric  _ -> True
+                      Alphanum _ -> False)
             . NE.toList
+            . (\(Chunks nec) -> nec)
             $ _vChunks v
-    if startsWithDigists && isNothing (_vEpoch v)
+    if startsWithDigits && isNothing (_vEpoch v)
       then pure $ prettyVer v
       else fail "Oh"
 

lib/GHCup/Prelude/Version/QQ.hs

@@ -26,36 +26,14 @@ import           GHC.Base
 #endif
 import           Language.Haskell.TH
 import           Language.Haskell.TH.Quote      ( QuasiQuoter(..) )
-import           Language.Haskell.TH.Syntax     ( Lift
-                                                , dataToExpQ
-                                                )
+import           Language.Haskell.TH.Syntax     ( dataToExpQ )
 import qualified Data.Text                     as T
 import qualified Language.Haskell.TH.Syntax    as TH
 
 
-
-deriving instance Data Versioning
-deriving instance Lift Versioning
-deriving instance Data Version
-deriving instance Lift Version
-deriving instance Data SemVer
-deriving instance Lift SemVer
-deriving instance Data Mess
-deriving instance Lift Mess
-deriving instance Data MChunk
-deriving instance Lift MChunk
-deriving instance Data PVP
-deriving instance Lift PVP
-deriving instance Lift VSep
-deriving instance Data VSep
-deriving instance Lift VUnit
-deriving instance Data VUnit
-
 #if !MIN_VERSION_base(4,13,0)
 deriving instance Lift (NonEmpty Word)
-deriving instance Lift (NonEmpty VChunk)
 deriving instance Lift (NonEmpty MChunk)
-deriving instance Lift (NonEmpty VUnit)
 #endif
 
 qq :: (Text -> Q Exp) -> QuasiQuoter

lib/GHCup/Stack.hs

@@ -38,6 +38,7 @@ import           Control.Monad.Trans.Resource
                                          hiding ( throwM )
 import           Data.Either
 import           Data.List
+import           Data.Ord
 import           Data.Maybe
 import           Data.Versions                hiding ( patch )
 import           Haskus.Utils.Variant.Excepts
@@ -279,6 +280,6 @@ rmStackVer ver = do
 
   when (Just ver == sSet) $ do
     sVers <- lift $ fmap rights getInstalledStacks
-    case headMay . reverse . sort $ sVers of
+    case headMay . sortBy (comparing Down) $ sVers of
       Just latestver -> setStack latestver
       Nothing        -> lift $ rmLink (binDir </> "stack" <> exeExt)

lib/GHCup/Types.hs

@@ -31,6 +31,7 @@ import {-# SOURCE #-} GHCup.Utils.Dirs          ( fromGHCupPath, GHCupPath )
 import           Control.DeepSeq                ( NFData, rnf )
 import           Data.Map.Strict                ( Map )
 import           Data.List.NonEmpty             ( NonEmpty (..) )
+import           Data.Time.Calendar             ( Day )
 import           Data.Text                      ( Text )
 import           Data.Versions
 import           GHC.IO.Exception               ( ExitCode )
@@ -44,7 +45,8 @@ import           Graphics.Vty                   ( Key(..) )
 import qualified Data.ByteString.Lazy          as BL
 import qualified Data.Text                     as T
 import qualified GHC.Generics                  as GHC
-
+import qualified Data.List.NonEmpty            as NE
+import           Data.Foldable                  (foldMap)
 
 #if !defined(BRICK)
 data Key = KEsc  | KChar Char | KBS | KEnter
@@ -103,7 +105,7 @@ instance NFData Requirements
 -- | Description of all binary and source downloads. This is a tree
 -- of nested maps.
 type GHCupDownloads = Map Tool ToolVersionSpec
-type ToolVersionSpec = Map Version VersionInfo
+type ToolVersionSpec = Map GHCTargetVersion VersionInfo
 type ArchitectureSpec = Map Architecture PlatformSpec
 type PlatformSpec = Map Platform PlatformVersionSpec
 type PlatformVersionSpec = Map (Maybe VersionRange) DownloadInfo
@@ -131,11 +133,15 @@ data GlobalTool = ShimGen
 
 instance NFData GlobalTool
 
+instance Pretty GlobalTool where
+  pPrint ShimGen = text "shimgen"
+
 
 -- | All necessary information of a tool version, including
 -- source download and per-architecture downloads.
 data VersionInfo = VersionInfo
   { _viTags        :: [Tag]              -- ^ version specific tag
+  , _viReleaseDay  :: Maybe Day
   , _viChangeLog   :: Maybe URI
   , _viSourceDL    :: Maybe DownloadInfo -- ^ source tarball
   , _viTestDL      :: Maybe DownloadInfo -- ^ test tarball
@@ -151,11 +157,17 @@ instance NFData VersionInfo
 
 
 -- | A tag. These are currently attached to a version of a tool.
-data Tag = Latest
-         | Recommended
-         | Prerelease
-         | LatestPrerelease
-         | Base PVP
+data Tag = Latest             -- ^ the latest version of a tool (unique per tool)
+         | Recommended        -- ^ the recommended version of a tool (unique per tool)
+         | Prerelease         -- ^ denotes a prerelease version
+                              --   (a version should either be 'Prerelease' or
+                              --   'LatestPrerelease', but not both)
+         | LatestPrerelease   -- ^ the latest prerelease (unique per tool)
+         | Nightly            -- ^ denotes a nightly version
+                              --   (a version should either be 'Nightly' or
+                              --   'LatestNightly', but not both)
+         | LatestNightly      -- ^ the latest nightly (unique per tool)
+         | Base PVP           -- ^ the base version shipped with GHC
          | Old                -- ^ old versions are hidden by default in TUI
          | UnknownTag String  -- ^ used for upwardscompat
          deriving (Ord, Eq, GHC.Generic, Show) -- FIXME: manual JSON instance
@@ -166,18 +178,22 @@ tagToString :: Tag -> String
 tagToString Recommended        = "recommended"
 tagToString Latest             = "latest"
 tagToString Prerelease         = "prerelease"
+tagToString Nightly            = "nightly"
 tagToString (Base       pvp'') = "base-" ++ T.unpack (prettyPVP pvp'')
 tagToString (UnknownTag t    ) = t
 tagToString LatestPrerelease   = "latest-prerelease"
+tagToString LatestNightly      = "latest-nightly"
 tagToString Old                = ""
 
 instance Pretty Tag where
   pPrint Recommended        = text "recommended"
   pPrint Latest             = text "latest"
   pPrint Prerelease         = text "prerelease"
+  pPrint Nightly            = text "nightly"
   pPrint (Base       pvp'') = text ("base-" ++ T.unpack (prettyPVP pvp''))
   pPrint (UnknownTag t    ) = text t
   pPrint LatestPrerelease   = text "latest-prerelease"
+  pPrint LatestNightly   = text "latest-prerelease"
   pPrint Old                = mempty
 
 data Architecture = A_64
@@ -267,6 +283,7 @@ data DownloadInfo = DownloadInfo
   , _dlSubdir :: Maybe TarDir
   , _dlHash   :: Text
   , _dlCSize  :: Maybe Integer
+  , _dlOutput :: Maybe FilePath
   }
   deriving (Eq, Ord, GHC.Generic, Show)
 
@@ -584,7 +601,9 @@ data GHCTargetVersion = GHCTargetVersion
   { _tvTarget  :: Maybe Text
   , _tvVersion :: Version
   }
-  deriving (Ord, Eq, Show)
+  deriving (Ord, Eq, Show, GHC.Generic)
+
+instance NFData GHCTargetVersion
 
 data GitBranch = GitBranch
   { ref  :: String
@@ -623,6 +642,17 @@ data VersionRange = SimpleRange (NonEmpty VersionCmp) -- And
 
 instance NFData VersionRange
 
+instance Pretty VersionCmp where
+  pPrint (VR_gt v) = text "> " <> pPrint v
+  pPrint (VR_gteq v) = text ">= " <> pPrint v
+  pPrint (VR_lt v) = text "< " <> pPrint v
+  pPrint (VR_lteq v) = text "<= " <> pPrint v
+  pPrint (VR_eq v) = text "= " <> pPrint v
+
+instance Pretty VersionRange where
+  pPrint (SimpleRange xs) = foldl1 (\x y -> x <> text " && " <> y) $ NE.map pPrint xs
+  pPrint (OrRange xs vr) = foldMap pPrint xs <> " || " <> pPrint vr
+
 instance Pretty Versioning where
   pPrint = text . T.unpack . prettyV
 
@@ -694,3 +724,21 @@ type PromptQuestion = Text
 
 data PromptResponse = PromptYes | PromptNo
   deriving (Show, Eq)
+
+data ToolVersion = GHCVersion GHCTargetVersion
+                 | ToolVersion Version
+                 | ToolTag Tag
+                 | ToolDay Day
+                 deriving (Eq, Show)
+
+instance Pretty ToolVersion where
+  pPrint (GHCVersion v) = pPrint v
+  pPrint (ToolVersion v) = pPrint v
+  pPrint (ToolTag t) = pPrint t
+  pPrint (ToolDay d) = text (show d)
+
+
+
+data BuildSystem = Hadrian
+                 | Make
+  deriving (Show, Eq)

lib/GHCup/Types/JSON.hs

@@ -48,10 +48,11 @@ deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''MetaMo
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''Architecture
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''LinuxDistro
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''VSep
-deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''VUnit
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''MChunk
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''Platform
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''Mess
+deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''Chunk
+deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''Release
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''SemVer
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''Tool
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''GlobalTool
@@ -64,9 +65,11 @@ instance ToJSON Tag where
   toJSON Latest             = String "Latest"
   toJSON Recommended        = String "Recommended"
   toJSON Prerelease         = String "Prerelease"
+  toJSON Nightly            = String "Nightly"
   toJSON Old                = String "old"
   toJSON (Base       pvp'') = String ("base-" <> prettyPVP pvp'')
   toJSON LatestPrerelease   = String "LatestPrerelease"
+  toJSON LatestNightly      = String "LatestNightly"
   toJSON (UnknownTag x    ) = String (T.pack x)
 
 instance FromJSON Tag where
@@ -74,7 +77,9 @@ instance FromJSON Tag where
     "Latest"                             -> pure Latest
     "Recommended"                        -> pure Recommended
     "Prerelease"                         -> pure Prerelease
+    "Nightly"                            -> pure Nightly
     "LatestPrerelease"                   -> pure LatestPrerelease
+    "LatestNightly"                      -> pure LatestNightly
     "old"                                -> pure Old
     ('b' : 'a' : 's' : 'e' : '-' : ver') -> case pvp (T.pack ver') of
       Right x -> pure $ Base x
@@ -91,13 +96,29 @@ instance FromJSON URI where
       Right x -> pure x
       Left  e -> fail . show $ e
 
+instance ToJSON GHCTargetVersion where
+  toJSON = toJSON . tVerToText
+
+instance FromJSON GHCTargetVersion where
+  parseJSON = withText "GHCTargetVersion" $ \t -> case MP.parse ghcTargetVerP "" t of
+    Right x -> pure x
+    Left  e -> fail $ "Failure in GHCTargetVersion (FromJSON)" <> show e
+
+instance ToJSONKey GHCTargetVersion where
+  toJSONKey = toJSONKeyText $ \x -> tVerToText x
+
+instance FromJSONKey GHCTargetVersion where
+  fromJSONKey = FromJSONKeyTextParser $ \t -> case MP.parse ghcTargetVerP "" t of
+    Right x -> pure x
+    Left  e -> fail $ "Failure in GHCTargetVersion (FromJSONKey)" <> show e
+
 instance ToJSON Versioning where
   toJSON = toJSON . prettyV
 
 instance FromJSON Versioning where
   parseJSON = withText "Versioning" $ \t -> case versioning t of
     Right x -> pure x
-    Left  e -> fail $ "Failure in Version (FromJSON)" <> show e
+    Left  e -> fail $ "Failure in GHCTargetVersion (FromJSON)" <> show e
 
 instance ToJSONKey Versioning where
   toJSONKey = toJSONKeyText $ \x -> prettyV x

lib/GHCup/Utils.hs

@@ -62,7 +62,6 @@ import           Control.Monad.Trans.Resource
                                          hiding ( throwM )
 import           Control.Monad.IO.Unlift        ( MonadUnliftIO( withRunInIO ) )
 import           Data.Char                      ( isHexDigit )
-import           Data.Bifunctor                 ( first )
 import           Data.ByteString                ( ByteString )
 import           Data.Either
 import           Data.Foldable
@@ -94,6 +93,7 @@ import qualified Streamly.Prelude              as S
 import Control.DeepSeq (force)
 import GHC.IO (evaluate)
 import System.Environment (getEnvironment, setEnv)
+import Data.Time (Day(..), diffDays, addDays)
 
 
 -- $setup
@@ -119,11 +119,11 @@ import System.Environment (getEnvironment, setEnv)
 -- >>> let lc = LoggerConfig { lcPrintDebug = False, consoleOutter = mempty, fileOutter = mempty, fancyColors = False }
 -- >>> dirs' <- getAllDirs
 -- >>> let installedVersions = [ ([pver|8.10.7|], "-debug+lol", Nothing), ([pver|8.10.4|], "", Nothing), ([pver|8.8.4|], "", Nothing), ([pver|8.8.3|], "", Nothing) ]
--- >>> let settings = Settings True 0 False Never Curl False GHCupURL True GPGNone False
+-- >>> let settings = defaultSettings { cache = True, metaCache = 0, noNetwork = True }
 -- >>> let leanAppState = LeanAppState settings dirs' defaultKeyBindings lc
 -- >>> cwd <- getCurrentDirectory
 -- >>> (Right ref) <- pure $ parseURI strictURIParserOptions $ "file://" <> E.encodeUtf8 (T.pack cwd) <> "/data/metadata/" <> (urlBaseName . view pathL' $ ghcupURL)
--- >>> (VRight r) <- (fmap . fmap) _ghcupDownloads $ flip runReaderT leanAppState . runE @'[DigestError, GPGError, JSONError , DownloadFailed , FileDoesNotExistError] $ liftE $ getBase ref
+-- >>> (VRight r) <- (fmap . fmap) _ghcupDownloads $ flip runReaderT leanAppState . runE @'[DigestError, GPGError, JSONError , DownloadFailed , FileDoesNotExistError, ContentLengthError] $ liftE $ getBase ref
 
 
 
@@ -288,13 +288,6 @@ ghcInstalled ver = do
   liftIO $ doesDirectoryExist (fromGHCupPath ghcdir)
 
 
--- | Whether the given GHC version is installed from source.
-ghcSrcInstalled :: (MonadIO m, MonadReader env m, HasDirs env, MonadThrow m) => GHCTargetVersion -> m Bool
-ghcSrcInstalled ver = do
-  ghcdir <- ghcupGHCDir ver
-  liftIO $ doesFileExist (fromGHCupPath ghcdir </> ghcUpSrcBuiltFile)
-
-
 -- | Whether the given GHC version is set as the current.
 ghcSet :: (MonadReader env m, HasDirs env, MonadThrow m, MonadIO m)
        => Maybe Text   -- ^ the target of the GHC version, if any
@@ -694,10 +687,8 @@ hlsAllBinaries ver = do
 
 -- | Extract (major, minor) from any version.
 getMajorMinorV :: MonadThrow m => Version -> m (Int, Int)
-getMajorMinorV Version {..} = case _vChunks of
-  ((Digits x :| []) :| ((Digits y :| []):_)) -> pure (fromIntegral x, fromIntegral y)
-  _ -> throwM $ ParseError "Could not parse X.Y from version"
-
+getMajorMinorV (Version _ (Chunks (Numeric x :| Numeric y : _)) _ _) = pure (fromIntegral x, fromIntegral y)
+getMajorMinorV _ = throwM $ ParseError "Could not parse X.Y from version"
 
 matchMajor :: Version -> Int -> Int -> Bool
 matchMajor v' major' minor' = case getMajorMinorV v' of
@@ -739,7 +730,7 @@ getGHCForPVP pvpIn mt = do
 -- | Like 'getGHCForPVP', except with explicit input parameter.
 --
 -- >>> getGHCForPVP' [pver|8|] installedVersions Nothing
--- Just (GHCTargetVersion {_tvTarget = Nothing, _tvVersion = Version {_vEpoch = Nothing, _vChunks = (Digits 8 :| []) :| [Digits 10 :| [],Digits 7 :| []], _vRel = [Str "debug" :| []], _vMeta = Just "lol"}})
+-- Just (GHCTargetVersion {_tvTarget = Nothing, _tvVersion = Version {_vEpoch = Nothing, _vChunks = Chunks (Numeric 8 :| [Numeric 10,Numeric 7]), _vRel = Just (Release (Alphanum "debug" :| [])), _vMeta = Just "lol"}})
 -- >>> fmap prettyShow $ getGHCForPVP' [pver|8.8|] installedVersions Nothing
 -- "Just 8.8.4"
 -- >>> fmap prettyShow $ getGHCForPVP' [pver|8.10.4|] installedVersions Nothing
@@ -765,21 +756,24 @@ getGHCForPVP' pvpIn ghcs' mt = do
 -- | Get the latest available ghc for the given PVP version, which
 -- may only contain parts.
 --
--- >>> (fmap . fmap) fst $ getLatestToolFor GHC [pver|8|] r
+-- >>> (fmap . fmap) (\(p, _, _) -> p) $ getLatestToolFor GHC Nothing [pver|8|] r
 -- Just (PVP {_pComponents = 8 :| [10,7]})
--- >>> (fmap . fmap) fst $ getLatestToolFor GHC [pver|8.8|] r
+-- >>> (fmap . fmap) (\(p, _, _) -> p) $ getLatestToolFor GHC Nothing [pver|8.8|] r
 -- Just (PVP {_pComponents = 8 :| [8,4]})
--- >>> (fmap . fmap) fst $ getLatestToolFor GHC [pver|8.8.4|] r
+-- >>> (fmap . fmap) (\(p, _, _) -> p) $ getLatestToolFor GHC Nothing [pver|8.8.4|] r
 -- Just (PVP {_pComponents = 8 :| [8,4]})
 getLatestToolFor :: MonadThrow m
                  => Tool
+                 -> Maybe Text
                  -> PVP
                  -> GHCupDownloads
-                 -> m (Maybe (PVP, VersionInfo))
-getLatestToolFor tool pvpIn dls = do
-  let ls = fromMaybe [] $ preview (ix tool % to Map.toDescList) dls
-  let ps = catMaybes $ fmap (\(v, vi) -> (,vi) <$> versionToPVP v) ls
-  pure . fmap (first fst) . headMay . filter (\((v, _), _) -> matchPVPrefix pvpIn v) $ ps
+                 -> m (Maybe (PVP, VersionInfo, Maybe Text))
+getLatestToolFor tool target pvpIn dls = do
+  let ls :: [(GHCTargetVersion, VersionInfo)]
+      ls = fromMaybe [] $ preview (ix tool % to Map.toDescList) dls
+  let ps :: [((PVP, Text), VersionInfo, Maybe Text)]
+      ps = catMaybes $ fmap (\(v, vi) -> (,vi, _tvTarget v) <$> versionToPVP (_tvVersion v)) ls
+  pure . fmap (\((pv', _), vi, mt) -> (pv', vi, mt)) . headMay . filter (\((v, _), _, t) -> matchPVPrefix pvpIn v && t == target) $ ps
 
 
 
@@ -884,23 +878,41 @@ intoSubdir bdir tardir = case tardir of
 -- | Get the tool version that has this tag. If multiple have it,
 -- picks the greatest version.
 getTagged :: Tag
-          -> Fold (Map.Map Version VersionInfo) (Version, VersionInfo)
+          -> Fold (Map.Map GHCTargetVersion VersionInfo) (GHCTargetVersion, VersionInfo)
 getTagged tag =
   to (Map.toDescList . Map.filter (\VersionInfo {..} -> tag `elem` _viTags))
   % folding id
 
-getLatest :: GHCupDownloads -> Tool -> Maybe (Version, VersionInfo)
+getByReleaseDay :: GHCupDownloads -> Tool -> Day -> Either (Maybe Day) (GHCTargetVersion, VersionInfo)
+getByReleaseDay av tool day = let mvv = fromMaybe mempty $ headOf (ix tool) av
+                                  mdv = Map.foldrWithKey (\k vi@VersionInfo{..} m ->
+                                            maybe m (\d -> let diff = diffDays d day
+                                                           in Map.insert (abs diff) (diff, (k, vi)) m) _viReleaseDay)
+                                          Map.empty mvv
+                              in case headMay (Map.toAscList mdv) of
+                                   Nothing -> Left Nothing
+                                   Just (absDiff, (diff, (k, vi)))
+                                     | absDiff == 0 -> Right (k, vi)
+                                     | otherwise -> Left (Just (addDays diff day))
+
+getByReleaseDayFold :: Day -> Fold (Map.Map GHCTargetVersion VersionInfo) (GHCTargetVersion, VersionInfo)
+getByReleaseDayFold day = to (Map.toDescList . Map.filter (\VersionInfo {..} -> Just day == _viReleaseDay)) % folding id
+
+getLatest :: GHCupDownloads -> Tool -> Maybe (GHCTargetVersion, VersionInfo)
 getLatest av tool = headOf (ix tool % getTagged Latest) av
 
-getLatestPrerelease :: GHCupDownloads -> Tool -> Maybe (Version, VersionInfo)
+getLatestPrerelease :: GHCupDownloads -> Tool -> Maybe (GHCTargetVersion, VersionInfo)
 getLatestPrerelease av tool = headOf (ix tool % getTagged LatestPrerelease) av
 
-getRecommended :: GHCupDownloads -> Tool -> Maybe (Version, VersionInfo)
+getLatestNightly :: GHCupDownloads -> Tool -> Maybe (GHCTargetVersion, VersionInfo)
+getLatestNightly av tool = headOf (ix tool % getTagged LatestNightly) av
+
+getRecommended :: GHCupDownloads -> Tool -> Maybe (GHCTargetVersion, VersionInfo)
 getRecommended av tool = headOf (ix tool % getTagged Recommended) av
 
 
 -- | Gets the latest GHC with a given base version.
-getLatestBaseVersion :: GHCupDownloads -> PVP -> Maybe (Version, VersionInfo)
+getLatestBaseVersion :: GHCupDownloads -> PVP -> Maybe (GHCTargetVersion, VersionInfo)
 getLatestBaseVersion av pvpVer =
   headOf (ix GHC % getTagged (Base pvpVer)) av
 
@@ -954,11 +966,6 @@ ghcToolFiles ver = do
   isNotAnyInfix xs t = foldr (\a b -> not (a `isInfixOf` t) && b) True xs
 
 
--- | This file, when residing in @~\/.ghcup\/ghc\/\<ver\>\/@ signals that
--- this GHC was built from source. It contains the build config.
-ghcUpSrcBuiltFile :: FilePath
-ghcUpSrcBuiltFile = ".ghcup_src_built"
-
 
 -- | Calls gmake if it exists in PATH, otherwise make.
 make :: ( MonadThrow m
@@ -1024,7 +1031,7 @@ applyPatches pdir ddir = do
 
   patches <- liftIO $ quilt `catchIO` (\e ->
     if isDoesNotExistError e || isPermissionError e then
-      lexicographical 
+      lexicographical
     else throwIO e)
   forM_ patches $ \patch' -> applyPatch patch' ddir
 
@@ -1081,11 +1088,15 @@ darwinNotarization _ _ = pure $ Right ()
 
 
 
-getChangeLog :: GHCupDownloads -> Tool -> Either Version Tag -> Maybe URI
-getChangeLog dls tool (Left v') =
+getChangeLog :: GHCupDownloads -> Tool -> ToolVersion -> Maybe URI
+getChangeLog dls tool (GHCVersion v') =
   preview (ix tool % ix v' % viChangeLog % _Just) dls
-getChangeLog dls tool (Right tag) =
+getChangeLog dls tool (ToolVersion (mkTVer -> v')) =
+  preview (ix tool % ix v' % viChangeLog % _Just) dls
+getChangeLog dls tool (ToolTag tag) =
   preview (ix tool % pre (getTagged tag) % to snd % viChangeLog % _Just) dls
+getChangeLog dls tool (ToolDay day) =
+  preview (ix tool % pre (getByReleaseDayFold day) % to snd % viChangeLog % _Just) dls
 
 
 -- | Execute a build action while potentially cleaning up:
@@ -1169,7 +1180,7 @@ rmBDir dir = withRunInIO (\run -> run $
            $ rmPathForcibly dir)
 
 
-getVersionInfo :: Version
+getVersionInfo :: GHCTargetVersion
                -> Tool
                -> GHCupDownloads
                -> Maybe VersionInfo
@@ -1199,7 +1210,7 @@ ensureGlobalTools
       (GHCupInfo _ _ gTools) <- lift getGHCupInfo
       dirs <- lift getDirs
       shimDownload <- liftE $ lE @_ @'[NoDownload]
-        $ maybe (Left NoDownload) Right $ Map.lookup ShimGen gTools
+        $ maybe (Left (NoDownload' ShimGen)) Right $ Map.lookup ShimGen gTools
       let dl = downloadCached' shimDownload (Just "gs.exe") Nothing
       void $ (\DigestError{} -> do
           lift $ logWarn "Digest doesn't match, redownloading gs.exe..."

lib/GHCup/Utils/Dirs.hs

@@ -279,7 +279,7 @@ ghcupCacheDir
             Nothing -> do
               home <- liftIO getHomeDirectory
               pure (home </> ".cache")
-          pure (GHCupPath (bdir </> "ghcup"))
+          pure (GHCupPath (bdir </> "ghcup" </> "cache"))
         else ghcupBaseDir <&> (\(GHCupPath gp) -> GHCupPath (gp </> "cache"))
 
 
@@ -308,19 +308,7 @@ ghcupLogsDir
 -- If 'GHCUP_USE_XDG_DIRS' is set (to anything),
 -- then uses 'XDG_CACHE_HOME/ghcup/db as per xdg spec.
 ghcupDbDir :: IO GHCupPath
-ghcupDbDir
-  | isWindows = ghcupBaseDir <&> (\(GHCupPath gp) -> GHCupPath (gp </> "db"))
-  | otherwise = do
-      xdg <- useXDG
-      if xdg
-        then do
-          bdir <- lookupEnv "XDG_CACHE_HOME" >>= \case
-            Just r  -> pure r
-            Nothing -> do
-              home <- liftIO getHomeDirectory
-              pure (home </> ".cache")
-          pure (GHCupPath (bdir </> "ghcup" </> "db"))
-        else ghcupBaseDir <&> (\(GHCupPath gp) -> GHCupPath (gp </> "db"))
+ghcupDbDir = ghcupBaseDir <&> (\(GHCupPath gp) -> GHCupPath (gp </> "db"))
 
 
 -- | '~/.ghcup/trash'.

lib/GHCup/Version.hs

@@ -24,10 +24,10 @@ import qualified Data.Text                     as T
 import qualified Data.Versions as V
 import Control.Exception.Safe (MonadThrow)
 import Data.Text (Text)
-import Data.List.NonEmpty (NonEmpty((:|)))
-import Data.List (intersperse)
 import Control.Monad.Catch (throwM)
 import GHCup.Errors (ParseError(..))
+import Text.Megaparsec
+import Data.Void (Void)
 
 -- | This reflects the API version of the YAML.
 --
@@ -52,7 +52,7 @@ versionCmp ver1 (VR_lteq ver2) = ver1 <= ver2
 versionCmp ver1 (VR_eq ver2)   = ver1 == ver2
 
 versionRange :: V.Versioning -> VersionRange -> Bool
-versionRange ver' (SimpleRange cmps) = and $ fmap (versionCmp ver') cmps
+versionRange ver' (SimpleRange cmps) = all (versionCmp ver') cmps
 versionRange ver' (OrRange cmps range) = 
   versionRange ver' (SimpleRange cmps) || versionRange ver' range
 
@@ -65,44 +65,15 @@ pvpToVersion pvp_ rest =
 -- -- prop> \v -> let (Just (pvp', r)) = versionToPVP v in pvpToVersion pvp' r === Just v
 versionToPVP :: MonadThrow m => V.Version -> m (V.PVP, Text)
 versionToPVP (V.Version (Just _) _ _ _) = throwM $ ParseError "Unexpected epoch"
-versionToPVP v = either (\_ -> (, rest v) <$> alternative v) (pure . (, mempty)) . V.pvp . V.prettyVer $ v
+versionToPVP v = case parse pvp'' "Version->PVP" $ V.prettyVer v of
+  Left _  -> throwM $ ParseError "Couldn't convert Version to PVP"
+  Right r -> pure r
  where
-  alternative :: MonadThrow m => V.Version -> m V.PVP
-  alternative v' = case NE.takeWhile isDigit (V._vChunks v') of
-    [] -> throwM $ ParseError "Couldn't convert Version to PVP"
-    xs -> pure $ pvpFromList (unsafeDigit <$> xs)
-
-  rest :: V.Version -> Text
-  rest (V.Version _ cs pr me) =
-    let chunks = NE.dropWhile isDigit cs
-        ver = intersperse (T.pack ".") . chunksAsT $ chunks
-        me' = maybe [] (\m -> [T.pack "+",m]) me
-        pr' = foldable [] (T.pack "-" :) $ intersperse (T.pack ".") (chunksAsT pr)
-        prefix = case (ver, pr', me') of
-                   (_:_, _, _) -> T.pack "."
-                   _           -> T.pack ""
-    in prefix <> mconcat (ver <> pr' <> me')
-   where
-    chunksAsT :: Functor t => t V.VChunk -> t Text
-    chunksAsT = fmap (foldMap f)
-      where
-        f :: V.VUnit -> Text
-        f (V.Digits i) = T.pack $ show i
-        f (V.Str s)    = s
-
-    foldable :: Foldable f => f b -> (f a -> f b) -> f a -> f b
-    foldable d g f | null f    = d
-                   | otherwise = g f
-
-
-
-  isDigit :: V.VChunk -> Bool
-  isDigit (V.Digits _ :| []) = True
-  isDigit _                = False
-
-  unsafeDigit :: V.VChunk -> Int
-  unsafeDigit (V.Digits x :| []) = fromIntegral x
-  unsafeDigit _ = error "unsafeDigit: wrong input"
+   pvp'' :: Parsec Void T.Text (V.PVP, T.Text)
+   pvp'' = do
+     p <- V.pvp'
+     s <- getParserState
+     pure (p, stateInput s)
 
 pvpFromList :: [Int] -> V.PVP
 pvpFromList = V.PVP . NE.fromList . fmap fromIntegral

scripts/bootstrap/bootstrap-haskell

@@ -28,7 +28,7 @@
 
 plat="$(uname -s)"
 arch=$(uname -m)
-ghver="0.1.19.2"
+ghver="0.1.19.4"
 : "${GHCUP_BASE_URL:=https://downloads.haskell.org/~ghcup}"
 
 export GHCUP_SKIP_UPDATE_CHECK=yes
@@ -851,8 +851,8 @@ case $ask_stack_answer in
 		;;
 	2)
         (_eghcup --cache install stack) || die "Stack installation failed"
-        edo mkdir -p "${STACK_ROOOT:-$HOME/.stack}"/hooks
-        hook_exe="${STACK_ROOOT:-$HOME/.stack}"/hooks/ghc-install.sh
+        edo mkdir -p "${STACK_ROOT:-$HOME/.stack}"/hooks
+        hook_exe="${STACK_ROOT:-$HOME/.stack}"/hooks/ghc-install.sh
         hook_url="https://www.haskell.org/ghcup/sh/hooks/stack/ghc-install.sh"
 
         if [ -e "${hook_exe}" ] ; then

scripts/bootstrap/bootstrap-haskell.ps1

@@ -40,10 +40,13 @@ param (
     # Whether to disable use of curl.exe
     [switch]$DisableCurl,
     # The Msys2 version to download (e.g. 20221216)
-    [string]$Msys2Version
+    [string]$Msys2Version,
+    # The Msys2 sha256sum hash
+    [string]$Msys2Hash
 )
 
 $DefaultMsys2Version = "20221216"
+$DefaultMsys2Hash = "18370d32b0264915c97e3d7c618f7b32d48ad80858923883fde5145acd32ca0f"
 
 $Silent = !$Interactive
 
@@ -430,9 +433,12 @@ if (!(Test-Path -Path ('{0}' -f $MsysDir))) {
 	if (!($Msys2Version)) {
 		$Msys2Version = $DefaultMsys2Version
 	}
+	if (!($Msys2Hash)) {
+		$Msys2Hash = $DefaultMsys2Hash
+	}
     Print-Msg -msg ('Downloading Msys2 archive {0}...' -f $Msys2Version)
     $archive = ('msys2-base-x86_64-{0}.sfx.exe' -f $Msys2Version)
-    $msysUrl = ('https://repo.msys2.org/distrib/x86_64/{0}' -f "$archive")
+    $msysUrl = ('https://downloads.haskell.org/ghcup/msys2/{0}' -f "$archive")
     $archivePath = ('{0}\{1}' -f ([IO.Path]::GetTempPath()), "$archive")
 
     if ((Get-Command -Name 'curl.exe' -ErrorAction SilentlyContinue) -and !($DisableCurl)) {
@@ -440,6 +446,11 @@ if (!(Test-Path -Path ('{0}' -f $MsysDir))) {
     } else {
       Get-FileWCSynchronous -url "$msysUrl" -destinationFolder ([IO.Path]::GetTempPath()) -includeStats
     }
+	$Msys2HashChecked = Get-FileHash -Algorithm SHA256 "${archivePath}"
+	if (!($Msys2HashChecked.Hash -eq $Msys2Hash)) {
+		Print-Msg -color Red -msg ("Hashes don't match, got {0}, but expected {1}" -f $Msys2HashChecked, $Msys2Hash)
+		Exit 1
+	}
 
     Print-Msg -msg 'Extracting Msys2 archive...'
     $null = & "$archivePath" '-y' ('-o{0}' -f $GhcupDir)  # Extract
@@ -448,7 +459,7 @@ if (!(Test-Path -Path ('{0}' -f $MsysDir))) {
     Print-Msg -msg 'Processing MSYS2 bash for first time use...'
     Exec "$Bash" '-lc' 'exit'
 
-    Exec "$env:windir\system32\taskkill.exe" /F /FI `"MODULES eq msys-2.0.dll`"
+    Exec "$env:windir\system32\taskkill.exe" /F /FI "MODULES eq msys-2.0.dll"
 
     Print-Msg -msg 'Upgrading full system...'
     Exec "$Bash" '-lc' 'pacman --noconfirm -Syuu'

scripts/releasing/create-yaml-snippet.sh

@@ -0,0 +1,67 @@
+#!/bin/bash
+
+set -eu
+set -o pipefail
+
+RELEASE=$1
+
+get_sha() {
+    sha256sum "$1" | awk '{ print $1 }'
+}
+
+cd "gh-release-artifacts/v${RELEASE}"
+
+cat <<EOF > /dev/stdout
+  GHCup:
+    ${RELEASE}:
+      viTags:
+      - Recommended
+      - Latest
+      viChangeLog: https://github.com/haskell/ghcup-hs/blob/master/CHANGELOG.md
+      viSourceDL:
+        dlUri: https://downloads.haskell.org/~ghcup/${RELEASE}/ghcup-${RELEASE}-src.tar.gz
+        dlSubdir: ghcup-${RELEASE}
+        dlHash: $(get_sha "ghcup-${RELEASE}-src.tar.gz")
+      viArch:
+        A_64:
+          Linux_UnknownLinux:
+            unknown_versioning: &ghcup-64
+              dlUri: https://downloads.haskell.org/~ghcup/${RELEASE}/x86_64-linux-ghcup-${RELEASE}
+              dlHash: $(get_sha "x86_64-linux-ghcup-${RELEASE}")
+          Darwin:
+            unknown_versioning:
+              dlUri: https://downloads.haskell.org/~ghcup/${RELEASE}/x86_64-apple-darwin-ghcup-${RELEASE}
+              dlHash: $(get_sha "x86_64-apple-darwin-ghcup-${RELEASE}")
+          FreeBSD:
+            unknown_versioning:
+              dlUri: https://downloads.haskell.org/~ghcup/${RELEASE}/x86_64-portbld-freebsd-ghcup-${RELEASE}
+              dlHash: $(get_sha "x86_64-portbld-freebsd-ghcup-${RELEASE}")
+          Windows:
+            unknown_versioning:
+              dlUri: https://downloads.haskell.org/~ghcup/${RELEASE}/x86_64-mingw64-ghcup-${RELEASE}.exe
+              dlHash: $(get_sha "x86_64-mingw64-ghcup-${RELEASE}.exe")
+          Linux_Alpine:
+            unknown_versioning: *ghcup-64
+        A_32:
+          Linux_UnknownLinux:
+            unknown_versioning: &ghcup-32
+              dlUri: https://downloads.haskell.org/~ghcup/${RELEASE}/i386-linux-ghcup-${RELEASE}
+              dlHash: $(get_sha "i386-linux-ghcup-${RELEASE}")
+          Linux_Alpine:
+            unknown_versioning: *ghcup-32
+        A_ARM64:
+          Linux_UnknownLinux:
+            unknown_versioning:
+              dlUri: https://downloads.haskell.org/~ghcup/${RELEASE}/aarch64-linux-ghcup-${RELEASE}
+              dlHash: $(get_sha "aarch64-linux-ghcup-${RELEASE}")
+          Darwin:
+            unknown_versioning:
+              dlUri: https://downloads.haskell.org/~ghcup/${RELEASE}/aarch64-apple-darwin-ghcup-${RELEASE}
+              dlHash: $(get_sha "aarch64-apple-darwin-ghcup-${RELEASE}")
+        A_ARM:
+          Linux_UnknownLinux:
+            unknown_versioning:
+              dlUri: https://downloads.haskell.org/~ghcup/${RELEASE}/armv7-linux-ghcup-${RELEASE}
+              dlHash: $(get_sha "armv7-linux-ghcup-${RELEASE}")
+EOF
+

scripts/releasing/pull_release_artifacts.sh

@@ -29,7 +29,7 @@ gh release download "$RELEASE"
 
 # cirrus
 curl -L -o "x86_64-portbld-freebsd-ghcup-${TAG}" \
-	"https://api.cirrus-ci.com/v1/artifact/github/haskell/ghcup-hs/build/binaries/out/x86_64-portbld-freebsd-ghcup-${RELEASE}?branch=${RELEASE}"
+	"https://api.cirrus-ci.com/v1/artifact/github/haskell/ghcup-hs/build/binaries/out/x86_64-portbld-freebsd-ghcup-${TAG}?branch=${RELEASE}"
 
 sha256sum ./*-ghcup-* > SHA256SUMS
 gpg --detach-sign -u "${SIGNER}" SHA256SUMS

stack.yaml

@@ -1,52 +1,38 @@
-resolver: lts-18.28
+resolver: lts-20.26
 
 packages:
   - .
 
 extra-deps:
-  - Cabal-3.6.2.0@sha256:e2266e14758c1f799220fad7f0d4b0b4ec567d81b7ba3faea17ff76d4c31de95,12437
-  - IfElse-0.85@sha256:6939b94acc6a55f545f63a168a349dd2fbe4b9a7cca73bf60282db5cc6aa47d2,445
-  - ascii-string-1.0.1.4@sha256:fa34f1d9ba57e8e89c0d4c9cef5e01ba32cb2d4373d13f92dcc0b531a6c6749b,2582
-  - base16-bytestring-0.1.1.7@sha256:0021256a9628971c08da95cb8f4d0d72192f3bb8a7b30b55c080562d17c43dd3,2231
-  - brick-0.64@sha256:f03fa14607c22cf48af99e24c44f79a0fb073f7ec229f15e969fed9ff73c93f6,16530
-  - brotli-0.0.0.0@sha256:2bf383a4cd308745740986be0b18381c5a0784393fe69b91456aacb2d603de46,2964
-  - brotli-streams-0.0.0.0@sha256:1af1e22f67b8bfd6ad0d05e61825e7a178d738f689ebbb21c1aab5f1bbcae176,2331
+  - Cabal-3.6.3.0
+  - Cabal-syntax-3.10.1.0
+  - aeson-2.1.2.1
+  - cabal-install-parsers-0.6.1
   - chs-cabal-0.1.1.1
-  - chs-deps-0.1.0.0@sha256:0cdada6d2c682c41b20331b8c63c2ecfc7e806928585195fd544c9d41f3074fd,2496
-  - composition-prelude-3.0.0.2@sha256:1ffed216bd28d810fce0b5be83a661e2a892696d73b3f8de5c0f5edb9b5f0090,1216
+  - chs-deps-0.1.0.0
+  - generic-arbitrary-0.2.2@sha256:202ffbf2032672a51318f2e80d7e75b72f8950e690346b4314f38bc7e39215f7,1189
+  - generically-0.1.1
   - haskus-utils-data-1.4@sha256:bfa94363b94b14779edd6834fbd59dbb847c3d7b8f48e3844f456ffdc077da4a,1466
   - haskus-utils-types-1.5.1@sha256:991c472f4e751e2f0d7aab6ad4220ef151d6160876dcf0511bbf876bbd432020,1298
-  - haskus-utils-variant-3.2.1@sha256:791f4cf1e786eb578f4d37aef60986641f84c36e130164321f7d01542584066a,2200
-  - heaps-0.3.6.1@sha256:7928b759ca5180d35722c45948c0bde264229f3c99c1888188a3d9285f13d3d2,1340
-  - hpath-filepath-0.10.4@sha256:e9e44fb5fdbade7f30b5b5451257dbee15b6ef1aae4060034d73008bb3b5d878,1269
-  - hpath-posix-0.13.3@sha256:abe472cf16bccd3a8b8814865ed3551a728fde0f3a2baea2acc03023bec6c565,1615
-  - hspec-2.7.10@sha256:c9e82c90086acebac576552a06f3cabd249bba048edd1667c7fae0b1313d5bce,1712
-  - hspec-core-2.7.10@sha256:2aba6ea126442b29e8183ab27f1c811706b19b1d83b02f193a896f6fc1589d13,4621
-  - hspec-discover-2.7.10@sha256:d08bf5dd785629f589571477d9beb7cd91529471bd89f39517c1cb4b9b38160f,2184
-  - hspec-golden-aeson-0.9.0.0@sha256:aa17274114026661ba4dfc9c60c230673c8f408bd86482fd611d2d5cb6aff996,2179
-  - http-io-streams-0.1.6.0@sha256:53f5bab177efb52cd65ec396fd04ed59b93e5f919fb3700cd7dacd6cfce6f06d,3582
-  - libarchive-3.0.3.0
+  - haskus-utils-variant-3.2.1
+  - libarchive-3.0.3.2
   - libyaml-streamly-0.2.1
-  - lzma-static-5.2.5.3@sha256:2758ee58c35992fcf7db78e98684c357a16a82fa2a4e7c352a6c210c08c555d8,7308
-  - optics-0.4@sha256:9fb69bf0195b8d8f1f8cd0098000946868b8a3c3ffb51e5b64f79fc600c3eb4c,6568
-  - optics-core-0.4@sha256:59e04aebca536bd011ae50c781937f45af4c1456af1eb9fb578f9a69eee293cd,4995
-  - optics-extra-0.4@sha256:b9914f38aa7d5c92f231060d9168447f9f5a367c07df9bf47a003e3e786d5e05,3432
-  - optics-th-0.4@sha256:7c838b5b1d6998133bf8f0641c36197ed6cb468dc69515e1952f33f0bbe8e11d,2009
-  - os-release-1.0.1@sha256:1281c62081f438fc3f0874d3bae6a4887d5964ac25261ba06e29d368ab173467,2716
-  - primitive-0.7.1.0@sha256:29de6bfd0cf8ba023ceb806203dfbec0e51e3524e75ffe41056f70b4229c6f0f,2728
-  - regex-posix-clib-2.7
+  - lzma-static-5.2.5.5
+  - os-release-1.0.2.1
+  - parsec-3.1.15.0
   - streamly-0.8.2@sha256:ec521b7c1c4db068501c35804af77f40b7d34232f5e29d9b99e722229040eb80,23500
-  - unicode-data-0.3.0@sha256:0545e079705a5381d0893f8fe8daaa08fc9174baeab269b9cf651817d8eadbc6,5123
-  - strict-base-0.4.0.0@sha256:2ff4e43cb95eedf2995558d7fc34d19362846413dd39e6aa6a5b3ea8228fef9f,1248
-  - xor-0.0.1.0@sha256:f8362b4a68562b9afbcd727ff64c1a303970df3a032e0033d2f4c094c3501df3,2243
-  - yaml-streamly-0.12.1
+  - strict-base-0.4.0.0
+  - text-2.0.2
+  - yaml-streamly-0.12.2
+  - github: fosskers/versions
+    commit: 7bc3355348aac3510771d4622aff09ac38c9924d
 
 flags:
   http-io-streams:
     brotli: false
 
   libarchive:
-    system-libarchive: false
+    system-libarchive: true
 
   regex-posix:
     _regex-posix-clib: true

test/ghcup-test/GHCup/ArbitraryTypes.hs

@@ -11,6 +11,7 @@ import           GHCup.Types
 import           Data.ByteString                ( ByteString )
 import           Data.Versions
 import           Data.List.NonEmpty
+import           Data.Time.Calendar             ( Day(..) )
 import           Test.QuickCheck
 import           Test.QuickCheck.Arbitrary.ADT  ( ToADTArbitrary )
 import           Test.QuickCheck.Arbitrary.Generic
@@ -76,6 +77,9 @@ instance Arbitrary Port where
   arbitrary = genericArbitrary
   shrink    = genericShrink
 
+instance Arbitrary Day where
+  arbitrary = ModifiedJulianDay . fromIntegral <$> (chooseAny :: Gen Int)
+
 instance Arbitrary (URIRef Absolute) where
   arbitrary =
     URI <$> arbitrary <*> pure Nothing <*> arbitrary <*> pure (Query []) <*> pure Nothing
@@ -179,6 +183,10 @@ instance Arbitrary GHCupInfo where
   arbitrary = genericArbitrary
   shrink    = genericShrink
 
+instance Arbitrary GHCTargetVersion where
+  arbitrary = GHCTargetVersion Nothing <$> arbitrary
+  shrink    = genericShrink
+
 
 -- our maps are nested... the default size easily blows up most ppls ram
 

test/ghcup-test/GHCup/Prelude/File/Posix/TraversalsSpec.hs

@@ -24,7 +24,7 @@ spec = do
   -- https://github.com/haskell/ghcup-hs/issues/415
   describe "GHCup.Prelude.File.Posix.Traversals" $ do
     it "readDirEnt" $ do
-      dirstream <- liftIO $ openDirStreamPortable "test/data"
+      dirstream <- liftIO $ openDirStreamPortable "test/ghcup-test/data"
       (dt1, fp1) <- readDirEntPortable dirstream
       (dt2, fp2) <- readDirEntPortable dirstream
       (dt3, fp3) <- readDirEntPortable dirstream

test/ghcup-test/GHCup/Types/JSONSpec.hs

@@ -17,6 +17,6 @@ spec = do
   roundtripAndGoldenSpecsWithSettings (defaultSettings { goldenDirectoryOption = CustomDirectoryName goldenDir }) (Proxy @GHCupInfo)
  where
   goldenDir
-    | isWindows = "test/golden/windows"
-    | otherwise = "test/golden/unix"
+    | isWindows = "test/ghcup-test/golden/windows"
+    | otherwise = "test/ghcup-test/golden/unix"
 

test/optparse-test/ChangeLogTest.hs

@@ -0,0 +1,51 @@
+{-# LANGUAGE TemplateHaskell #-}
+{-# LANGUAGE OverloadedStrings #-}
+
+module ChangeLogTest where
+
+import Test.Tasty
+import GHCup.OptParse
+import Utils
+import Test.Tasty.HUnit
+import Control.Monad.IO.Class
+import GHCup.Types
+import Data.Versions (versionQ)
+
+changeLogTests :: TestTree
+changeLogTests = testGroup "changelog" $ map (uncurry check) checkList
+  where
+    check :: String -> ChangeLogOptions -> TestTree
+    check args expected = testCase args $ do
+      res <- changeLogParseWith (words args)
+      liftIO $ res @?= expected
+
+checkList :: [(String, ChangeLogOptions)]
+checkList =
+  [ ("changelog", ChangeLogOptions False Nothing Nothing)
+  , ("changelog -o", ChangeLogOptions True Nothing Nothing)
+  , ("changelog -t ghc", ChangeLogOptions False (Just GHC) Nothing)
+  , ("changelog -t cabal", ChangeLogOptions False (Just Cabal) Nothing)
+  , ("changelog -t hls", ChangeLogOptions False (Just HLS) Nothing)
+  , ("changelog -t stack", ChangeLogOptions False (Just Stack) Nothing)
+  , ("changelog -t ghcup", ChangeLogOptions False (Just GHCup) Nothing)
+  , ("changelog 9.2", ChangeLogOptions False Nothing
+      (Just $ GHCVersion
+        $ GHCTargetVersion
+          Nothing
+          $(versionQ "9.2"))
+    )
+  , ("changelog recommended", ChangeLogOptions False Nothing (Just $ ToolTag Recommended))
+  , ("changelog -t cabal recommended", ChangeLogOptions False (Just Cabal) (Just $ ToolTag Recommended))
+  , ("changelog -t cabal 3.10.1.0", ChangeLogOptions False (Just Cabal)
+      (Just $ GHCVersion
+        $ GHCTargetVersion
+          Nothing
+          $(versionQ "3.10.1.0"))
+    )
+  , ("changelog 2023-07-22", ChangeLogOptions False Nothing (Just (ToolDay (read "2023-07-22"))))
+  ]
+
+changeLogParseWith :: [String] -> IO ChangeLogOptions
+changeLogParseWith args = do
+  ChangeLog a <- parseWith args
+  pure a

test/optparse-test/CompileTest.hs

@@ -0,0 +1,191 @@
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE QuasiQuotes #-}
+{-# LANGUAGE CPP #-}
+{-# LANGUAGE TemplateHaskell #-}
+
+module CompileTest where
+
+import Test.Tasty
+import GHCup.OptParse
+import Utils
+import Data.Versions
+import GHCup.Types
+import URI.ByteString.QQ
+import qualified GHCup.OptParse.Compile as GHC (GHCCompileOptions(..))
+import qualified GHCup.OptParse.Compile as HLS (HLSCompileOptions(..))
+import GHCup.GHC as GHC
+import GHCup.HLS as HLS
+
+
+compileTests :: TestTree
+compileTests = testGroup "compile"
+  $ map (buildTestTree compileParseWith)
+      [ ("ghc", compileGhcCheckList)
+      , ("hls", compileHlsCheckList)
+      ]
+
+mkDefaultGHCCompileOptions :: GHCVer -> Either Version FilePath -> GHCCompileOptions
+mkDefaultGHCCompileOptions target boot =
+  GHCCompileOptions
+    target
+    boot
+    Nothing
+    Nothing
+    (Just $ Right [])
+    Nothing
+    []
+    False
+    Nothing
+    Nothing
+    Nothing
+    Nothing
+
+mkDefaultHLSCompileOptions :: HLSVer -> [ToolVersion] -> HLSCompileOptions
+mkDefaultHLSCompileOptions target ghcs =
+  HLSCompileOptions
+    target
+    Nothing
+    True
+    False
+    (Left False)
+    Nothing
+    Nothing
+    Nothing
+    (Just $ Right [])
+    ghcs
+    []
+
+compileGhcCheckList :: [(String, CompileCommand)]
+compileGhcCheckList = mapSecond CompileGHC
+  [ ("compile ghc -v 9.4.5 -b 9.2.8", baseOptions)
+  , ("compile ghc -g a32db0b -b 9.2.8", mkDefaultGHCCompileOptions
+        (GHC.GitDist $ GitBranch "a32db0b" Nothing)
+        (Left $(versionQ "9.2.8"))
+    )
+  , ("compile ghc -g a32db0b -b 9.2.8 -r https://gitlab.haskell.org/ghc/ghc.git",
+        mkDefaultGHCCompileOptions
+          (GHC.GitDist $ GitBranch "a32db0b" (Just "https://gitlab.haskell.org/ghc/ghc.git"))
+          (Left $(versionQ "9.2.8"))
+    )
+  , ("compile ghc -g a32db0b -r https://gitlab.haskell.org/ghc/ghc.git -b /usr/bin/ghc-9.2.2",
+        mkDefaultGHCCompileOptions
+          (GHC.GitDist $ GitBranch "a32db0b" (Just "https://gitlab.haskell.org/ghc/ghc.git"))
+          (Right "/usr/bin/ghc-9.2.2")
+    )
+  , ("compile ghc --remote-source-dist https://gitlab.haskell.org/ghc/ghc.git -b 9.2.8", mkDefaultGHCCompileOptions
+        (GHC.RemoteDist [uri|https://gitlab.haskell.org/ghc/ghc.git|])
+        (Left $(versionQ "9.2.8"))
+    )
+  , (baseCmd <> "-j20", baseOptions{GHC.jobs = Just 20})
+  , (baseCmd <> "--jobs 10", baseOptions{GHC.jobs = Just 10})
+  , (baseCmd <> "-c build.mk", baseOptions{GHC.buildConfig = Just "build.mk"})
+  , (baseCmd <> "--config build.mk", baseOptions{GHC.buildConfig = Just "build.mk"})
+  , (baseCmd <> "--patch file:///example.patch", baseOptions{GHC.patches = Just $ Right [[uri|file:///example.patch|]]})
+  , (baseCmd <> "-p patch_dir", baseOptions{GHC.patches = Just (Left "patch_dir")})
+  , (baseCmd <> "--patchdir patch_dir", baseOptions{GHC.patches = Just (Left "patch_dir")})
+  , (baseCmd <> "-x armv7-unknown-linux-gnueabihf", baseOptions{GHC.crossTarget = Just "armv7-unknown-linux-gnueabihf"})
+  , (baseCmd <> "--cross-target armv7-unknown-linux-gnueabihf", baseOptions{GHC.crossTarget = Just "armv7-unknown-linux-gnueabihf"})
+  , (baseCmd <> "-- --enable-unregisterised", baseOptions{GHC.addConfArgs = ["--enable-unregisterised"]})
+  , (baseCmd <> "--set", baseOptions{GHC.setCompile = True})
+  , (baseCmd <> "-o 9.4.5-p1", baseOptions{GHC.ovewrwiteVer = Just $(versionQ "9.4.5-p1")})
+  , (baseCmd <> "--overwrite-version 9.4.5-p1", baseOptions{GHC.ovewrwiteVer = Just $(versionQ "9.4.5-p1")})
+  , (baseCmd <> "-f make", baseOptions{GHC.buildFlavour = Just "make"})
+  , (baseCmd <> "--flavour make", baseOptions{GHC.buildFlavour = Just "make"})
+  , (baseCmd <> "--hadrian", baseOptions{GHC.buildSystem = Just Hadrian})
+  , (baseCmd <> "--make", baseOptions{GHC.buildSystem = Just Make})
+#ifdef IS_WINDOWS
+  , (baseCmd <> "-i C:\\\\tmp\\out_dir", baseOptions{GHC.isolateDir = Just "C:\\\\tmp\\out_dir"})
+  , (baseCmd <> "--isolate C:\\\\tmp\\out_dir", baseOptions{GHC.isolateDir = Just "C:\\\\tmp\\out_dir"})
+#else
+  , (baseCmd <> "-i /tmp/out_dir", baseOptions{GHC.isolateDir = Just "/tmp/out_dir"})
+  , (baseCmd <> "--isolate /tmp/out_dir", baseOptions{GHC.isolateDir = Just "/tmp/out_dir"})
+#endif
+  ]
+  where
+    baseCmd :: String
+    baseCmd = "compile ghc -v 9.4.5 -b 9.2.8 "
+
+    baseOptions :: GHCCompileOptions
+    baseOptions =
+      mkDefaultGHCCompileOptions
+        (GHC.SourceDist $(versionQ "9.4.5"))
+        (Left $(versionQ "9.2.8"))
+
+compileHlsCheckList :: [(String, CompileCommand)]
+compileHlsCheckList = mapSecond CompileHLS
+  [ ("compile hls -v 2.0.0.0 --ghc 9.2.8", baseOptions)
+  , ("compile hls --version 2.0.0.0 --ghc 9.2.8", baseOptions)
+  , ("compile hls -g a32db0b --ghc 9.2.8",
+        mkDefaultHLSCompileOptions
+          (HLS.GitDist $ GitBranch {ref = "a32db0b", repo = Nothing})
+          [ghc928]
+    )
+  , ("compile hls --git-ref a32db0b --ghc 9.2.8",
+        mkDefaultHLSCompileOptions
+          (HLS.GitDist $ GitBranch {ref = "a32db0b", repo = Nothing})
+          [ghc928]
+    )
+  , ("compile hls -g a32db0b -r https://github.com/haskell/haskell-language-server.git --ghc 9.2.8",
+        mkDefaultHLSCompileOptions
+          (HLS.GitDist $ GitBranch {ref = "a32db0b", repo = Just "https://github.com/haskell/haskell-language-server.git"})
+          [ghc928]
+    )
+  , ("compile hls -g a32db0b --repository https://github.com/haskell/haskell-language-server.git --ghc 9.2.8",
+        mkDefaultHLSCompileOptions
+          (HLS.GitDist $ GitBranch {ref = "a32db0b", repo = Just "https://github.com/haskell/haskell-language-server.git"})
+          [ghc928]
+    )
+  , ("compile hls --source-dist 2.0.0.0 --ghc 9.2.8",
+        mkDefaultHLSCompileOptions
+          (HLS.SourceDist $(versionQ "2.0.0.0"))
+          [ghc928]
+    )
+  , ("compile hls --remote-source-dist https://github.com/haskell/haskell-language-server/archive/refs/tags/2.0.0.1.tar.gz --ghc 9.2.8",
+        mkDefaultHLSCompileOptions
+          (HLS.RemoteDist [uri|https://github.com/haskell/haskell-language-server/archive/refs/tags/2.0.0.1.tar.gz|])
+          [ghc928]
+    )
+  , ("compile hls -v 2.0.0.0 --ghc latest",
+        mkDefaultHLSCompileOptions
+          (HLS.HackageDist $(versionQ "2.0.0.0"))
+          [ToolTag Latest]
+    )
+  , (baseCmd <> "-j20", baseOptions{HLS.jobs = Just 20})
+  , (baseCmd <> "--jobs 10", baseOptions{HLS.jobs = Just 10})
+  , (baseCmd <> "--no-set", baseOptions{HLS.setCompile = False})
+  , (baseCmd <> "--cabal-update", baseOptions{HLS.updateCabal = True})
+  , (baseCmd <> "-o 2.0.0.0-p1", baseOptions{HLS.ovewrwiteVer = Right $(versionQ "2.0.0.0-p1")})
+  , (baseCmd <> "--overwrite-version 2.0.0.0-p1", baseOptions{HLS.ovewrwiteVer = Right $(versionQ "2.0.0.0-p1")})
+  , (baseCmd <> "--git-describe-version", baseOptions{HLS.ovewrwiteVer = Left True})
+#ifdef IS_WINDOWS
+  , (baseCmd <> "-i C:\\\\tmp\\out_dir", baseOptions{HLS.isolateDir = Just "C:\\\\tmp\\out_dir"})
+  , (baseCmd <> "--isolate C:\\\\tmp\\out_dir", baseOptions{HLS.isolateDir = Just "C:\\\\tmp\\out_dir"})
+#else
+  , (baseCmd <> "-i /tmp/out_dir", baseOptions{HLS.isolateDir = Just "/tmp/out_dir"})
+  , (baseCmd <> "--isolate /tmp/out_dir", baseOptions{HLS.isolateDir = Just "/tmp/out_dir"})
+#endif
+  , (baseCmd <> "--cabal-project file:///tmp/cabal.project", baseOptions{HLS.cabalProject = Just $ Right [uri|file:///tmp/cabal.project|]})
+  , (baseCmd <> "--cabal-project cabal.ghc8107.project", baseOptions{HLS.cabalProject = Just $ Left "cabal.ghc8107.project"})
+  , (baseCmd <> "--cabal-project-local file:///tmp/cabal.project.local", baseOptions{HLS.cabalProjectLocal = Just [uri|file:///tmp/cabal.project.local|]})
+  , (baseCmd <> "--patch file:///example.patch", baseOptions{HLS.patches = Just $ Right [[uri|file:///example.patch|]]})
+  , (baseCmd <> "-p patch_dir", baseOptions{HLS.patches = Just (Left "patch_dir")})
+  , (baseCmd <> "--patchdir patch_dir", baseOptions{HLS.patches = Just (Left "patch_dir")})
+  , (baseCmd <> "-- --enable-tests", baseOptions{HLS.cabalArgs = ["--enable-tests"]})
+  ]
+  where
+    baseCmd :: String
+    baseCmd = "compile hls -v 2.0.0.0 --ghc 9.2.8 "
+
+    baseOptions :: HLSCompileOptions
+    baseOptions =
+      mkDefaultHLSCompileOptions
+        (HLS.HackageDist $(versionQ "2.0.0.0"))
+        [ghc928]
+
+    ghc928 :: ToolVersion
+    ghc928 = GHCVersion $ GHCTargetVersion Nothing $(versionQ "9.2.8")
+
+compileParseWith :: [String] -> IO CompileCommand
+compileParseWith args = do
+  Compile a <- parseWith args
+  pure a

test/optparse-test/ConfigTest.hs

@@ -0,0 +1,34 @@
+{-# LANGUAGE QuasiQuotes #-}
+
+module ConfigTest where
+
+import Test.Tasty
+import Test.Tasty.HUnit
+import GHCup.OptParse
+import Utils
+import Control.Monad.IO.Class
+import URI.ByteString.QQ
+
+configTests :: TestTree
+configTests = testGroup "config" $ map (uncurry check) checkList
+  where
+    check :: String -> ConfigCommand -> TestTree
+    check args expected = testCase args $ do
+      res <- configParseWith (words args)
+      liftIO $ res @?= expected
+
+checkList :: [(String, ConfigCommand)]
+checkList =
+  [ ("config", ShowConfig)
+  , ("config init", InitConfig)
+  , ("config show", ShowConfig)
+  , ("config add-release-channel https://raw.githubusercontent.com/haskell/ghcup-metadata/master/ghcup-prereleases-0.0.7.yaml"
+    , AddReleaseChannel False [uri|https://raw.githubusercontent.com/haskell/ghcup-metadata/master/ghcup-prereleases-0.0.7.yaml|]
+    )
+  , ("config set cache true", SetConfig "cache" (Just "true"))
+  ]
+
+configParseWith :: [String] -> IO ConfigCommand
+configParseWith args = do
+  Config a <- parseWith args
+  pure a

test/optparse-test/GCTest.hs

@@ -0,0 +1,42 @@
+module GCTest where
+
+import Test.Tasty
+import GHCup.OptParse
+import Utils
+
+
+gcTests :: TestTree
+gcTests = buildTestTree gcParseWith ("gc", gcCheckList)
+
+defaultOptions :: GCOptions
+defaultOptions =
+  GCOptions
+    False
+    False
+    False
+    False
+    False
+    False
+
+gcCheckList :: [(String, GCOptions)]
+gcCheckList =
+  [ ("gc", defaultOptions)
+  , ("gc -o", defaultOptions{gcOldGHC = True})
+  , ("gc --ghc-old", defaultOptions{gcOldGHC = True})
+  , ("gc -p", defaultOptions{gcProfilingLibs = True})
+  , ("gc --profiling-libs", defaultOptions{gcProfilingLibs = True})
+  , ("gc -s", defaultOptions{gcShareDir = True})
+  , ("gc --share-dir", defaultOptions{gcShareDir = True})
+  , ("gc -h", defaultOptions{gcHLSNoGHC = True})
+  , ("gc --hls-no-ghc", defaultOptions{gcHLSNoGHC = True})
+  , ("gc -c", defaultOptions{gcCache = True})
+  , ("gc --cache", defaultOptions{gcCache = True})
+  , ("gc -t", defaultOptions{gcTmp = True})
+  , ("gc --tmpdirs", defaultOptions{gcTmp = True})
+  , ("gc -o -p -s -h -c -t", GCOptions True True True True True True)
+  ]
+
+gcParseWith :: [String] -> IO GCOptions
+gcParseWith args = do
+  GC a <- parseWith args
+  pure a

test/optparse-test/InstallTest.hs

@@ -0,0 +1,203 @@
+{-# LANGUAGE CPP               #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE QuasiQuotes       #-}
+{-# LANGUAGE TemplateHaskell   #-}
+
+module InstallTest where
+
+import Test.Tasty
+import GHCup.OptParse hiding (HLSCompileOptions(isolateDir))
+import Utils
+import GHCup.Types
+import Data.Versions
+import Data.List.NonEmpty (NonEmpty ((:|)))
+import GHCup.OptParse.Install as Install
+import URI.ByteString.QQ
+
+-- Some interests:
+--   install ghc *won't* select `set as activate version` as default
+--   install cabal *will* select `set as activate version` as default
+--   install hls *will* select `set as activate version` as default
+--   install stack *will* select `set as activate version` as default
+
+installTests :: TestTree
+installTests = testGroup "install"
+  $ map
+      (buildTestTree installParseWith)
+      [ ("old-style", oldStyleCheckList)
+      , ("ghc", installGhcCheckList)
+      , ("cabal", installCabalCheckList)
+      , ("hls", installHlsCheckList)
+      , ("stack", installStackCheckList)
+      ]
+
+defaultOptions :: InstallOptions
+defaultOptions = InstallOptions Nothing Nothing False Nothing False []
+
+-- | Don't set as active version
+mkInstallOptions :: ToolVersion -> InstallOptions
+mkInstallOptions ver = InstallOptions (Just ver) Nothing False Nothing False []
+
+-- | Set as active version
+mkInstallOptions' :: ToolVersion -> InstallOptions
+mkInstallOptions' ver = InstallOptions (Just ver) Nothing True Nothing False []
+
+oldStyleCheckList :: [(String, Either InstallCommand InstallOptions)]
+oldStyleCheckList =
+      ("install", Right defaultOptions)
+    : ("install --set", Right defaultOptions{instSet = True})
+    : ("install --force", Right defaultOptions{forceInstall = True})
+#ifdef IS_WINDOWS
+    : ("install -i C:\\\\", Right defaultOptions{Install.isolateDir = Just "C:\\\\"})
+#else
+    : ("install -i /", Right defaultOptions{Install.isolateDir = Just "/"})
+#endif
+    : ("install -u https://gitlab.haskell.org/ghc/ghc/-/jobs/artifacts/master/raw/ghc-x86_64-linux-fedora33-release.tar.xz head"
+    , Right defaultOptions
+        { instBindist = Just [uri|https://gitlab.haskell.org/ghc/ghc/-/jobs/artifacts/master/raw/ghc-x86_64-linux-fedora33-release.tar.xz|]
+        , instVer = Just $ GHCVersion $ GHCTargetVersion Nothing  $(versionQ "head")
+        }
+    )
+    : mapSecond
+        (Right . mkInstallOptions)
+        [ ("install ghc-9.2", GHCVersion
+              $ GHCTargetVersion
+                (Just "ghc")
+                $(versionQ "9.2")
+          )
+          -- invalid
+        , ("install next", GHCVersion
+              $ GHCTargetVersion
+                Nothing
+                $(versionQ "next")
+          )
+        , ("install latest", ToolTag Latest)
+        , ("install nightly", GHCVersion
+              $ GHCTargetVersion
+                Nothing
+                $(versionQ "nightly")
+          )
+        , ("install recommended", ToolTag Recommended)
+        , ("install prerelease", GHCVersion
+              $ GHCTargetVersion
+                Nothing
+                $(versionQ "prerelease")
+          )
+        , ("install latest-prerelease", ToolTag LatestPrerelease)
+        , ("install latest-nightly", ToolTag LatestNightly)
+        , ("install ghc-javascript-unknown-ghcjs-9.6", GHCVersion
+              $ GHCTargetVersion
+                (Just "ghc-javascript-unknown-ghcjs")
+                $(versionQ "9.6")
+          )
+        , ("install base-4.18", ToolTag (Base (PVP {_pComponents = 4 :| [18]})))
+        , ("install cabal-3.10", GHCVersion
+              $ GHCTargetVersion
+                (Just "cabal")
+                $(versionQ "3.10")
+          )
+        , ("install hls-2.0.0.0", GHCVersion
+              $ GHCTargetVersion
+                (Just "hls")
+                $(versionQ "2.0.0.0")
+          )
+        , ("install stack-2.9.3", GHCVersion
+              $ GHCTargetVersion
+                (Just "stack")
+                $(versionQ "2.9.3")
+          )
+        ]
+
+installGhcCheckList :: [(String, Either InstallCommand InstallOptions)]
+installGhcCheckList =
+  ("install ghc", Left $ InstallGHC defaultOptions)
+  : mapSecond (Left . InstallGHC . mkInstallOptions)
+    [ ("install ghc 9.2", GHCVersion
+          $ GHCTargetVersion
+            Nothing
+            $(versionQ "9.2")
+      )
+    , ("install ghc next", GHCVersion
+          $ GHCTargetVersion
+            Nothing
+            $(versionQ "next")
+      )
+    , ("install ghc latest", ToolTag Latest)
+    , ("install ghc nightly", GHCVersion
+          $ GHCTargetVersion
+            Nothing
+            $(versionQ "nightly")
+      )
+    , ("install ghc recommended", ToolTag Recommended)
+    , ("install ghc prerelease", GHCVersion
+          $ GHCTargetVersion
+            Nothing
+            $(versionQ "prerelease")
+      )
+    , ("install ghc latest-prerelease", ToolTag LatestPrerelease)
+    , ("install ghc latest-nightly", ToolTag LatestNightly)
+    , ("install ghc javascript-unknown-ghcjs-9.6", GHCVersion
+          $ GHCTargetVersion
+            (Just "javascript-unknown-ghcjs")
+            $(versionQ "9.6")
+      )
+    , ("install ghc base-4.18", ToolTag (Base (PVP {_pComponents = 4 :| [18]})))
+    , ("install ghc ghc-9.2", GHCVersion
+          $ GHCTargetVersion
+            (Just "ghc")
+            $(versionQ "9.2")
+      )
+    ]
+
+installCabalCheckList :: [(String, Either InstallCommand InstallOptions)]
+installCabalCheckList =
+  ("install cabal", Left $ InstallCabal defaultOptions{instSet = True})
+  : mapSecond (Left . InstallCabal . mkInstallOptions')
+    [ ("install cabal 3.10", ToolVersion $(versionQ "3.10"))
+    , ("install cabal next", ToolVersion $(versionQ "next"))
+    , ("install cabal latest", ToolTag Latest)
+    , ("install cabal nightly", ToolVersion $(versionQ "nightly"))
+    , ("install cabal recommended", ToolTag Recommended)
+    , ("install cabal prerelease", ToolVersion $(versionQ "prerelease"))
+    , ("install cabal latest-prerelease", ToolTag LatestPrerelease)
+    , ("install cabal latest-nightly", ToolTag LatestNightly)
+    , ("install cabal base-4.18", ToolTag (Base (PVP {_pComponents = 4 :| [18]})))
+    , ("install cabal cabal-3.10", ToolVersion $(versionQ "cabal-3.10"))
+    ]
+
+installHlsCheckList :: [(String, Either InstallCommand InstallOptions)]
+installHlsCheckList =
+  ("install hls", Left $ InstallHLS defaultOptions{instSet = True})
+  : mapSecond (Left . InstallHLS . mkInstallOptions')
+    [ ("install hls 3.10", ToolVersion $(versionQ "3.10"))
+    , ("install hls next", ToolVersion $(versionQ "next"))
+    , ("install hls latest", ToolTag Latest)
+    , ("install hls nightly", ToolVersion $(versionQ "nightly"))
+    , ("install hls recommended", ToolTag Recommended)
+    , ("install hls prerelease", ToolVersion $(versionQ "prerelease"))
+    , ("install hls latest-prerelease", ToolTag LatestPrerelease)
+    , ("install hls latest-nightly", ToolTag LatestNightly)
+    , ("install hls base-4.18", ToolTag (Base (PVP {_pComponents = 4 :| [18]})))
+    , ("install hls hls-2.0", ToolVersion $(versionQ "hls-2.0"))
+    ]
+
+installStackCheckList :: [(String, Either InstallCommand InstallOptions)]
+installStackCheckList =
+  ("install stack", Left $ InstallStack defaultOptions{instSet = True})
+  : mapSecond (Left . InstallStack . mkInstallOptions')
+    [ ("install stack 3.10", ToolVersion $(versionQ "3.10"))
+    , ("install stack next", ToolVersion $(versionQ "next"))
+    , ("install stack latest", ToolTag Latest)
+    , ("install stack nightly", ToolVersion $(versionQ "nightly"))
+    , ("install stack recommended", ToolTag Recommended)
+    , ("install stack prerelease", ToolVersion $(versionQ "prerelease"))
+    , ("install stack latest-prerelease", ToolTag LatestPrerelease)
+    , ("install stack latest-nightly", ToolTag LatestNightly)
+    , ("install stack base-4.18", ToolTag (Base (PVP {_pComponents = 4 :| [18]})))
+    , ("install stack stack-2.9", ToolVersion $(versionQ "stack-2.9"))
+    ]
+
+installParseWith :: [String] -> IO (Either InstallCommand InstallOptions)
+installParseWith args = do
+  Install a <- parseWith args
+  pure a

test/optparse-test/ListTest.hs

@@ -0,0 +1,46 @@
+module ListTest where
+
+import Test.Tasty
+import GHCup.OptParse
+import Utils
+import GHCup.List
+import GHCup.Types
+
+
+listTests :: TestTree
+listTests = buildTestTree listParseWith ("list", listCheckList)
+
+defaultOptions :: ListOptions
+defaultOptions = ListOptions Nothing Nothing Nothing Nothing False False False
+
+listCheckList :: [(String, ListOptions)]
+listCheckList =
+  [ ("list", defaultOptions)
+  , ("list -t ghc", defaultOptions{loTool = Just GHC})
+  , ("list -t cabal", defaultOptions{loTool = Just Cabal})
+  , ("list -t hls", defaultOptions{loTool = Just HLS})
+  , ("list -t stack", defaultOptions{loTool = Just Stack})
+  , ("list -c installed", defaultOptions{lCriteria = Just $ ListInstalled True})
+  , ("list -c +installed", defaultOptions{lCriteria = Just $ ListInstalled True})
+  , ("list -c -installed", defaultOptions{lCriteria = Just $ ListInstalled False})
+  , ("list -c set", defaultOptions{lCriteria = Just $ ListSet True})
+  , ("list -c +set", defaultOptions{lCriteria = Just $ ListSet True})
+  , ("list -c -set", defaultOptions{lCriteria = Just $ ListSet False})
+  , ("list -c available", defaultOptions{lCriteria = Just $ ListAvailable True})
+  , ("list -c +available", defaultOptions{lCriteria = Just $ ListAvailable True})
+  , ("list -c -available", defaultOptions{lCriteria = Just $ ListAvailable False})
+  , ("list -s 2023-07-22", defaultOptions{lFrom = Just $ read "2023-07-22"})
+  , ("list -u 2023-07-22", defaultOptions{lTo = Just $ read "2023-07-22"})
+  , ("list --since 2023-07-22 --until 2023-07-22", defaultOptions{lFrom = Just $ read "2023-07-22", lTo = Just $ read "2023-07-22"})
+  , ("list -o", defaultOptions{lHideOld = True})
+  , ("list --hide-old", defaultOptions{lHideOld = True})
+  , ("list -n", defaultOptions{lShowNightly = True})
+  , ("list --show-nightly", defaultOptions{lShowNightly = True})
+  , ("list -r", defaultOptions{lRawFormat = True})
+  , ("list --raw-format", defaultOptions{lRawFormat = True})
+  ]
+
+listParseWith :: [String] -> IO ListOptions
+listParseWith args = do
+  List a <- parseWith args
+  pure a

test/optparse-test/Main.hs

@@ -0,0 +1,33 @@
+module Main where
+
+import Test.Tasty
+import qualified SetTest
+import qualified OtherCommandTest
+import qualified ChangeLogTest
+import qualified ConfigTest
+import qualified InstallTest
+import qualified UnsetTest
+import qualified RmTest
+import qualified ListTest
+import qualified UpgradeTest
+import qualified CompileTest
+import qualified WhereisTest
+import qualified GCTest
+import qualified RunTest
+
+main :: IO ()
+main = defaultMain $ testGroup "ghcup"
+  [ SetTest.setTests
+  , OtherCommandTest.otherCommandTests
+  , ChangeLogTest.changeLogTests
+  , ConfigTest.configTests
+  , InstallTest.installTests
+  , UnsetTest.unsetTests
+  , RmTest.rmTests
+  , ListTest.listTests
+  , UpgradeTest.upgradeTests
+  , CompileTest.compileTests
+  , WhereisTest.whereisTests
+  , GCTest.gcTests
+  , RunTest.runTests
+  ]

test/optparse-test/OtherCommandTest.hs

@@ -0,0 +1,38 @@
+module OtherCommandTest where
+
+import Test.Tasty
+import Test.Tasty.HUnit
+import GHCup.OptParse
+import Utils
+import Control.Monad.IO.Class
+
+otherCommandTests :: TestTree
+otherCommandTests = testGroup "other command"
+  [ testCase "debug-info" $ do
+      res <- parseWith ["debug-info"]
+      liftIO $ assertBool "debug-info parse failed" (isDInfo res)
+  , testCase "tool-requirements" $ do
+      ToolRequirements opt <- parseWith ["tool-requirements"]
+      liftIO $ tlrRaw opt @?= False
+  , testCase "tool-requirements -r" $ do
+      ToolRequirements opt <- parseWith ["tool-requirements", "--raw-format"]
+      liftIO $ tlrRaw opt @?= True
+  , testCase "nuke" $ do
+      res <- parseWith ["nuke"]
+      liftIO $ assertBool "nuke parse failed" (isNuke res)
+  , testCase "test ghc" $ do
+      res <- parseWith ["test", "ghc"]
+      liftIO $ assertBool "test parse failed" (isTest res)
+  ]
+
+isDInfo :: Command -> Bool
+isDInfo DInfo = True
+isDInfo _     = False
+
+isNuke :: Command -> Bool
+isNuke Nuke = True
+isNuke _    = False
+
+isTest :: Command -> Bool
+isTest (Test _) = True
+isTest _        = False

test/optparse-test/RmTest.hs

@@ -0,0 +1,62 @@
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE TemplateHaskell   #-}
+
+module RmTest where
+
+import Test.Tasty
+import GHCup.OptParse
+import Utils
+import GHCup.Types
+import Data.Versions
+
+
+rmTests :: TestTree
+rmTests =
+  testGroup "rm"
+    $ map (buildTestTree rmParseWith)
+        [ ("old-style", oldStyleCheckList)
+        , ("ghc", rmGhcCheckList)
+        , ("cabal", rmCabalCheckList)
+        , ("hls", rmHlsCheckList)
+        , ("stack", rmStackCheckList)
+        ]
+
+oldStyleCheckList :: [(String, Either RmCommand RmOptions)]
+oldStyleCheckList = mapSecond (Right . RmOptions)
+  [ -- failed with ("rm", xxx)
+    ("rm 9.2.8", mkTVer $(versionQ "9.2.8"))
+  , ("rm ghc-9.2.8",  GHCTargetVersion (Just "ghc") $(versionQ "9.2.8"))
+  ]
+
+rmGhcCheckList :: [(String, Either RmCommand RmOptions)]
+rmGhcCheckList = mapSecond (Left . RmGHC . RmOptions)
+  [ -- failed with ("rm ghc", xxx)
+    ("rm ghc 9.2.8", mkTVer $(versionQ "9.2.8"))
+  , ("rm ghc ghc-9.2.8",  GHCTargetVersion (Just "ghc") $(versionQ "9.2.8"))
+  ]
+
+rmCabalCheckList :: [(String, Either RmCommand RmOptions)]
+rmCabalCheckList = mapSecond (Left . RmCabal)
+  [ -- failed with ("rm cabal", xxx)
+    ("rm cabal 3.10", $(versionQ "3.10"))
+  , ("rm cabal cabal-3.10", $(versionQ "cabal-3.10"))
+  ]
+
+rmHlsCheckList :: [(String, Either RmCommand RmOptions)]
+rmHlsCheckList = mapSecond (Left . RmHLS)
+  [ -- failed with ("rm hls", xxx)
+    ("rm hls 2.0", $(versionQ "2.0"))
+  , ("rm hls hls-2.0", $(versionQ "hls-2.0"))
+  ]
+
+rmStackCheckList :: [(String, Either RmCommand RmOptions)]
+rmStackCheckList = mapSecond (Left . RmStack)
+  [ -- failed with ("rm stack", xxx)
+    ("rm stack 2.9.1", $(versionQ "2.9.1"))
+  , ("rm stack stack-2.9.1", $(versionQ "stack-2.9.1"))
+  ]
+
+rmParseWith :: [String] -> IO (Either RmCommand RmOptions)
+rmParseWith args = do
+  Rm a <- parseWith args
+  pure a

test/optparse-test/RunTest.hs

@@ -0,0 +1,68 @@
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE CPP               #-}
+{-# LANGUAGE TemplateHaskell   #-}
+
+module RunTest where
+
+import Test.Tasty
+import GHCup.OptParse
+import Utils
+import GHCup.Types
+import Data.Versions (versionQ)
+
+
+runTests :: TestTree
+runTests = buildTestTree runParseWith ("run", runCheckList)
+
+defaultOptions :: RunOptions
+defaultOptions =
+  RunOptions
+    False
+    False
+    False
+    Nothing
+    Nothing
+    Nothing
+    Nothing
+    Nothing
+    False
+    []
+
+runCheckList :: [(String, RunOptions)]
+runCheckList =
+  [ ("run", defaultOptions)
+  , ("run -a", defaultOptions{runAppendPATH = True})
+  , ("run --append", defaultOptions{runAppendPATH = True})
+  , ("run -i", defaultOptions{runInstTool' = True})
+  , ("run --install", defaultOptions{runInstTool' = True})
+  , ("run -m", defaultOptions{runMinGWPath = True})
+  , ("run --mingw-path", defaultOptions{runMinGWPath = True})
+  , ("run --ghc 9.2.8", defaultOptions{runGHCVer = Just $ GHCVersion $ mkTVer $(versionQ "9.2.8")})
+  , ("run --ghc latest", defaultOptions{runGHCVer = Just $ ToolTag Latest})
+  , ("run --cabal 3.10", defaultOptions{runCabalVer = Just $ ToolVersion $(versionQ "3.10")})
+  , ("run --hls 2.0", defaultOptions{runHLSVer = Just $ ToolVersion $(versionQ "2.0")})
+  , ("run --stack 2.9", defaultOptions{runStackVer = Just $ ToolVersion $(versionQ "2.9") })
+#ifdef IS_WINDOWS
+  , ("run -b C:\\\\tmp\\dir", defaultOptions{runBinDir = Just "C:\\\\tmp\\dir"})
+  , ("run --bindir C:\\\\tmp\\dir", defaultOptions{runBinDir = Just "C:\\\\tmp\\dir"})
+#else
+  , ("run -b /tmp/dir", defaultOptions{runBinDir = Just "/tmp/dir"})
+  , ("run --bindir /tmp/dir", defaultOptions{runBinDir = Just "/tmp/dir"})
+#endif
+  , ("run -q", defaultOptions{runQuick = True})
+  , ("run --quick", defaultOptions{runQuick = True})
+  , ("run --ghc latest --cabal 3.10 --stack 2.9 --hls 2.0 --install",
+        defaultOptions
+          { runGHCVer = Just $ ToolTag Latest
+          , runCabalVer = Just $ ToolVersion $(versionQ "3.10")
+          , runHLSVer = Just $ ToolVersion $(versionQ "2.0")
+          , runStackVer = Just $ ToolVersion $(versionQ "2.9")
+          , runInstTool' = True
+          }
+    )
+  ]
+
+runParseWith :: [String] -> IO RunOptions
+runParseWith args = do
+  Run a <- parseWith args
+  pure a

test/optparse-test/SetTest.hs

@@ -0,0 +1,156 @@
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE TemplateHaskell #-}
+
+module SetTest where
+
+import GHCup.OptParse
+import Test.Tasty
+import GHCup.Types
+import Data.Versions
+import Data.List.NonEmpty (NonEmpty ((:|)))
+import Utils
+
+setTests :: TestTree
+setTests =
+  testGroup "set"
+    $ map
+        (buildTestTree setParseWith)
+        [ ("old-style", oldStyleCheckList)
+        , ("ghc", setGhcCheckList)
+        , ("cabal", setCabalCheckList)
+        , ("hls", setHlsCheckList)
+        , ("stack", setStackCheckList)
+        ]
+
+oldStyleCheckList :: [(String, Either SetCommand SetOptions)]
+oldStyleCheckList = mapSecond (Right . SetOptions)
+  [ ("set", SetRecommended)
+  , ("set ghc-9.2", SetGHCVersion
+          $ GHCTargetVersion
+            (Just "ghc")
+            $(versionQ "9.2")
+    )
+  , ("set next", SetNext)
+  , ("set latest", SetToolTag Latest)
+  , ("set nightly", SetGHCVersion
+          $ GHCTargetVersion
+            Nothing
+            $(versionQ "nightly")
+    )
+    -- different from `set`
+  , ("set recommended", SetToolTag Recommended)
+  , ("set prerelease", SetGHCVersion
+          $ GHCTargetVersion
+            Nothing
+            $(versionQ "prerelease")
+    )
+  , ("set latest-prerelease", SetToolTag LatestPrerelease)
+  , ("set latest-nightly", SetToolTag LatestNightly)
+  , ("set ghc-javascript-unknown-ghcjs-9.6", SetGHCVersion
+          $ GHCTargetVersion
+            (Just "ghc-javascript-unknown-ghcjs")
+            $(versionQ "9.6")
+    )
+  , ("set base-4.18", SetToolTag (Base (PVP {_pComponents = 4 :| [18]})))
+  , ("set cabal-3.10", SetGHCVersion
+          $ GHCTargetVersion
+            (Just "cabal")
+            $(versionQ "3.10")
+    )
+  , ("set hls-2.0.0.0", SetGHCVersion
+        $ GHCTargetVersion
+            (Just "hls")
+            $(versionQ "2.0.0.0")
+    )
+  , ("set stack-2.9.3", SetGHCVersion
+        $ GHCTargetVersion
+            (Just "stack")
+            $(versionQ "2.9.3")
+    )
+  ]
+
+setGhcCheckList :: [(String, Either SetCommand SetOptions)]
+setGhcCheckList = mapSecond (Left . SetGHC . SetOptions)
+  [ ("set ghc", SetRecommended)
+  , ("set ghc 9.2", SetGHCVersion
+        $ GHCTargetVersion
+          Nothing
+          $(versionQ "9.2")
+    )
+  , ("set ghc next", SetNext)
+  , ("set ghc latest", SetToolTag Latest)
+  , ("set ghc nightly", SetGHCVersion
+        $ GHCTargetVersion
+          Nothing
+          $(versionQ "nightly")
+    )
+  , ("set ghc recommended", SetToolTag Recommended)
+  , ("set ghc prerelease", SetGHCVersion
+        $ GHCTargetVersion
+          Nothing
+          $(versionQ "prerelease")
+    )
+  , ("set ghc latest-prerelease", SetToolTag LatestPrerelease)
+  , ("set ghc latest-nightly", SetToolTag LatestNightly)
+  , ("set ghc javascript-unknown-ghcjs-9.6", SetGHCVersion
+        $ GHCTargetVersion
+          (Just "javascript-unknown-ghcjs")
+          $(versionQ "9.6")
+    )
+  , ("set ghc base-4.18", SetToolTag (Base (PVP {_pComponents = 4 :| [18]})))
+  , ("set ghc ghc-9.2", SetGHCVersion
+        $ GHCTargetVersion
+          (Just "ghc")
+          $(versionQ "9.2")
+    )
+  ]
+
+setCabalCheckList :: [(String, Either SetCommand SetOptions)]
+setCabalCheckList = mapSecond (Left . SetCabal . SetOptions)
+  [ ("set cabal", SetRecommended)
+  , ("set cabal 3.10", SetToolVersion $(versionQ "3.10"))
+  , ("set cabal next", SetNext)
+  , ("set cabal latest", SetToolTag Latest)
+  , ("set cabal nightly", SetToolVersion $(versionQ "nightly"))
+  , ("set cabal recommended", SetToolTag Recommended)
+  , ("set cabal prerelease", SetToolVersion $(versionQ "prerelease"))
+  , ("set cabal latest-prerelease", SetToolTag LatestPrerelease)
+  , ("set cabal latest-nightly", SetToolTag LatestNightly)
+  , ("set cabal base-4.18", SetToolTag (Base (PVP {_pComponents = 4 :| [18]})))
+  , ("set cabal cabal-3.10", SetToolVersion $(versionQ "cabal-3.10"))
+  ]
+
+setHlsCheckList :: [(String, Either SetCommand SetOptions)]
+setHlsCheckList = mapSecond (Left . SetHLS . SetOptions)
+  [ ("set hls", SetRecommended)
+  , ("set hls 2.0", SetToolVersion $(versionQ "2.0"))
+  , ("set hls next", SetNext)
+  , ("set hls latest", SetToolTag Latest)
+  , ("set hls nightly", SetToolVersion $(versionQ "nightly"))
+  , ("set hls recommended", SetToolTag Recommended)
+  , ("set hls prerelease", SetToolVersion $(versionQ "prerelease"))
+  , ("set hls latest-prerelease", SetToolTag LatestPrerelease)
+  , ("set hls latest-nightly", SetToolTag LatestNightly)
+  , ("set hls base-4.18", SetToolTag (Base (PVP {_pComponents = 4 :| [18]})))
+  , ("set hls hls-2.0", SetToolVersion $(versionQ "hls-2.0"))
+  ]
+
+setStackCheckList :: [(String, Either SetCommand SetOptions)]
+setStackCheckList = mapSecond (Left . SetStack . SetOptions)
+  [ ("set stack", SetRecommended)
+  , ("set stack 2.9", SetToolVersion $(versionQ "2.9"))
+  , ("set stack next", SetNext)
+  , ("set stack latest", SetToolTag Latest)
+  , ("set stack nightly", SetToolVersion $(versionQ "nightly"))
+  , ("set stack recommended", SetToolTag Recommended)
+  , ("set stack prerelease", SetToolVersion $(versionQ "prerelease"))
+  , ("set stack latest-prerelease", SetToolTag LatestPrerelease)
+  , ("set stack latest-nightly", SetToolTag LatestNightly)
+  , ("set stack base-4.18", SetToolTag (Base (PVP {_pComponents = 4 :| [18]})))
+  , ("set stack stack-2.9", SetToolVersion $(versionQ "stack-2.9"))
+  ]
+
+setParseWith :: [String] -> IO (Either SetCommand SetOptions)
+setParseWith args = do
+  Set a <- parseWith args
+  pure a

test/optparse-test/UnsetTest.hs

@@ -0,0 +1,50 @@
+{-# LANGUAGE OverloadedStrings #-}
+
+module UnsetTest where
+
+import Test.Tasty
+import GHCup.OptParse
+import Utils
+
+
+unsetTests :: TestTree
+unsetTests =
+  testGroup "unset"
+    $ map (buildTestTree unsetParseWith)
+        [ ("ghc", unsetGhcCheckList)
+        , ("cabal", unsetCabalCheckList)
+        , ("hls", unsetHlsCheckList)
+        , ("stack", unsetStackCheckList)
+        ]
+
+unsetGhcCheckList :: [(String, UnsetCommand)]
+unsetGhcCheckList = mapSecond (UnsetGHC . UnsetOptions)
+  [ ("unset ghc", Nothing)
+  , ("unset ghc armv7-unknown-linux-gnueabihf", Just "armv7-unknown-linux-gnueabihf")
+  ]
+
+unsetCabalCheckList :: [(String, UnsetCommand)]
+unsetCabalCheckList = mapSecond (UnsetCabal . UnsetOptions)
+  [ ("unset cabal", Nothing)
+    -- This never used
+  , ("unset cabal armv7-unknown-linux-gnueabihf", Just "armv7-unknown-linux-gnueabihf")
+  ]
+
+unsetHlsCheckList :: [(String, UnsetCommand)]
+unsetHlsCheckList = mapSecond (UnsetHLS . UnsetOptions)
+  [ ("unset hls", Nothing)
+    -- This never used
+  , ("unset hls armv7-unknown-linux-gnueabihf", Just "armv7-unknown-linux-gnueabihf")
+  ]
+
+unsetStackCheckList :: [(String, UnsetCommand)]
+unsetStackCheckList = mapSecond (UnsetStack . UnsetOptions)
+  [ ("unset stack", Nothing)
+    -- This never used
+  , ("unset stack armv7-unknown-linux-gnueabihf", Just "armv7-unknown-linux-gnueabihf")
+  ]
+
+unsetParseWith :: [String] -> IO UnsetCommand
+unsetParseWith args = do
+  UnSet a <- parseWith args
+  pure a

test/optparse-test/UpgradeTest.hs

@@ -0,0 +1,38 @@
+{-# LANGUAGE TupleSections #-}
+
+module UpgradeTest where
+
+import Test.Tasty
+import GHCup.OptParse
+import Utils
+
+
+upgradeTests :: TestTree
+upgradeTests = buildTestTree upgradeParseWith ("upgrade", upgradeCheckList)
+
+type FullUpgradeOpts =
+  ( UpgradeOpts
+  , Bool -- ^Force update
+  , Bool -- ^Fails after upgrading if the upgraded ghcup binary is shadowed by something else in PATH (useful for CI)
+  )
+
+mkDefaultOptions :: UpgradeOpts -> FullUpgradeOpts
+mkDefaultOptions = (, False, False)
+
+upgradeCheckList :: [(String, FullUpgradeOpts)]
+upgradeCheckList =
+  [ ("upgrade", mkDefaultOptions UpgradeGHCupDir)
+  , ("upgrade -f", (UpgradeGHCupDir, True, False))
+  , ("upgrade --force", (UpgradeGHCupDir, True, False))
+  , ("upgrade --fail-if-shadowed", (UpgradeGHCupDir, False, True))
+  , ("upgrade -i", mkDefaultOptions UpgradeInplace)
+  , ("upgrade --inplace", mkDefaultOptions UpgradeInplace)
+  , ("upgrade -t ~", mkDefaultOptions $ UpgradeAt "~")
+  , ("upgrade --target ~", mkDefaultOptions $ UpgradeAt "~")
+  , ("upgrade -t ~ -f", (UpgradeAt "~", True, False))
+  ]
+
+upgradeParseWith :: [String] -> IO FullUpgradeOpts
+upgradeParseWith args = do
+  Upgrade a b c <- parseWith args
+  pure (a, b, c)

test/optparse-test/Utils.hs

@@ -0,0 +1,34 @@
+{-# OPTIONS_GHC -Wno-incomplete-uni-patterns #-}
+module Utils where
+
+import GHCup.OptParse as GHCup
+import Options.Applicative
+import Data.Bifunctor
+import Test.Tasty
+import Test.Tasty.HUnit
+import Control.Monad.IO.Class
+
+parseWith :: [String] -> IO Command
+parseWith args =
+  optCommand <$> handleParseResult
+    (execParserPure defaultPrefs (info GHCup.opts fullDesc) args)
+
+padLeft :: Int -> String -> String
+padLeft desiredLength s = padding ++ s
+  where padding = replicate (desiredLength - length s) ' '
+
+mapSecond :: (b -> c) -> [(a,b)] -> [(a,c)]
+mapSecond = map . second
+
+buildTestTree
+  :: (Eq a, Show a)
+  => ([String] -> IO a) -- ^ The parse function
+  -> (String, [(String, a)]) -- ^ The check list @(test group, [(cli command, expected value)])@
+  -> TestTree
+buildTestTree parse (title, checkList) =
+  testGroup title
+    $ zipWith (uncurry . check) [1 :: Int ..] checkList
+  where
+    check idx args expected = testCase (padLeft 2 (show idx) ++ "." ++ args) $ do
+      res <- parse (words args)
+      liftIO $ res @?= expected

test/optparse-test/WhereisTest.hs

@@ -0,0 +1,42 @@
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE TemplateHaskell #-}
+
+module WhereisTest where
+
+import Test.Tasty
+import GHCup.OptParse
+import Utils
+import GHCup.Types
+import Data.Versions (versionQ)
+
+whereisTests :: TestTree
+whereisTests = buildTestTree whereisParseWith ("whereis", whereisCheckList)
+
+whereisCheckList :: [(String, (WhereisOptions, WhereisCommand))]
+whereisCheckList = concatMap mk
+  [ ("whereis ghc", WhereisTool GHC Nothing)
+  , ("whereis ghc 9.2.8", WhereisTool GHC (Just $ GHCVersion $ mkTVer $(versionQ "9.2.8")))
+  , ("whereis ghc ghc-9.2.8", WhereisTool GHC (Just $ GHCVersion $ GHCTargetVersion (Just "ghc") $(versionQ "9.2.8")))
+  , ("whereis ghc latest", WhereisTool GHC (Just $ ToolTag Latest))
+  , ("whereis cabal", WhereisTool Cabal Nothing)
+  , ("whereis hls", WhereisTool HLS Nothing)
+  , ("whereis stack", WhereisTool Stack Nothing)
+  , ("whereis ghcup", WhereisTool GHCup Nothing)
+  , ("whereis basedir", WhereisBaseDir)
+  , ("whereis bindir", WhereisBinDir)
+  , ("whereis cachedir", WhereisCacheDir)
+  , ("whereis logsdir", WhereisLogsDir)
+  , ("whereis confdir", WhereisConfDir)
+  ]
+  where
+    mk :: (String, WhereisCommand) -> [(String, (WhereisOptions, WhereisCommand))]
+    mk (cmd, res) =
+      [ (cmd, (WhereisOptions False, res))
+      , (cmd <> " -d", (WhereisOptions True, res))
+      , (cmd <> " --directory", (WhereisOptions True, res))
+      ]
+
+whereisParseWith :: [String] -> IO (WhereisOptions, WhereisCommand)
+whereisParseWith args = do
+  Whereis a b <- parseWith args
+  pure (a, b)