Fix darwin aarch64 release

Partly addresses #160

.gitlab-ci.yml

@@ -7,7 +7,7 @@ variables:
   GIT_SSL_NO_VERIFY: "1"
 
   # Commit of ghc/ci-images repository from which to pull Docker images
-  DOCKER_REV: 1ac7f435c9312f10422a82d304194778378e2a1a
+  DOCKER_REV: 8d0224e6b2a08157649651e69302380b2bd24e11
 
 ############################################################
 # CI Step
@@ -41,7 +41,7 @@ variables:
     CABAL_DIR: "$CI_PROJECT_DIR/cabal"
 
 .linux:armv7:
-  image: "arm32v7/fedora"
+  image: "registry.gitlab.haskell.org/ghc/ci-images/armv7-linux-deb10:$DOCKER_REV"
   tags:
     - armv7-linux
   variables:
@@ -50,7 +50,7 @@ variables:
     CABAL_DIR: "$CI_PROJECT_DIR/cabal"
 
 .linux:aarch64:
-  image: "arm64v8/fedora"
+  image: "registry.gitlab.haskell.org/ghc/ci-images/aarch64-linux-deb10:$DOCKER_REV"
   tags:
     - aarch64-linux
   variables:
@@ -124,14 +124,14 @@ variables:
     - .test_ghcup_version
     - .linux:armv7
   before_script:
-    - ./.gitlab/before_script/linux/install_deps_manual.sh
+    - ./.gitlab/before_script/linux/install_deps.sh
 
 .test_ghcup_version:aarch64:
   extends:
     - .test_ghcup_version
     - .linux:aarch64
   before_script:
-    - ./.gitlab/before_script/linux/install_deps_manual.sh
+    - ./.gitlab/before_script/linux/install_deps.sh
 
 .test_ghcup_version:darwin:
   extends:
@@ -149,17 +149,19 @@ variables:
   script: |
     set -Eeuo pipefail
     function runInNixShell() {
-      time nix-shell .gitlab/shell.nix \
+      time nix-shell $CI_PROJECT_DIR/.gitlab/shell.nix \
         -I nixpkgs=https://github.com/angerman/nixpkgs/archive/75f7281738b.tar.gz \
-        --argstr system "x86_64-darwin" \
+        --argstr system "aarch64-darwin" \
         --pure \
-        --keep GHC_VERSION --keep CABAL_INSTALL_VERSION --keep BUILD_FLAVOUR \
+        --keep CI_PROJECT_DIR \
-        --keep BIN_DIST_PREP_TAR_COMP --keep CPUS --keep PROJECT_DIR \
+        --keep MACOSX_DEPLOYMENT_TARGET \
-        --keep CI_PROJECT_DIR --keep MAKE_ARGS --keep HADRIAN_ARGS --keep CABAL_CACHE \
+        --keep JSON_VERSION \
-        --keep LANG --keep CONFIGURE_ARGS --keep TEST_ENV --keep BIN_DIST_NAME \
+        --keep ARTIFACT \
-        --keep MACOSX_DEPLOYMENT_TARGET --keep ac_cv_func_clock_gettime --keep HACKAGE_INDEX_STATE \
+        --keep OS \
-        --keep CABAL_DIR --keep ARCH --keep OS --keep CABAL_VERSION --keep GHC_VERSION \ 
+        --keep ARCH \
-        --keep JSON_VERSION --ARTIFACT \
+        --keep CABAL_DIR \
+        --keep GHC_VERSION \
+        --keep CABAL_VERSION \
         --run "$1" 2>&1
     }
     runInNixShell ./.gitlab/before_script/darwin/install_deps.sh 2>&1
@@ -219,6 +221,23 @@ test:linux:bootstrap_script:
     CABAL_VERSION: "3.4.0.0"
   extends:
     - .debian
+    - .root_cleanup
+  needs: []
+
+test:windows:bootstrap_powershell_script:
+  stage: test
+  script:
+    - ./bootstrap-haskell.ps1 -InstallDir $CI_PROJECT_DIR -BootstrapUrl $CI_PROJECT_DIR/bootstrap-haskell -InBash
+  after_script:
+    - "[Environment]::SetEnvironmentVariable('GHCUP_INSTALL_BASE_PREFIX', $null, [System.EnvironmentVariableTarget]::User)"
+    - "[Environment]::SetEnvironmentVariable('GHCUP_MSYS2', $null, [System.EnvironmentVariableTarget]::User)"
+    - "[Environment]::SetEnvironmentVariable('CABAL_DIR', $null, [System.EnvironmentVariableTarget]::User)"
+    - bash ./.gitlab/after_script.sh
+  variables:
+    GHC_VERSION: "8.10.5"
+    CABAL_VERSION: "3.4.0.0"
+  extends:
+    - .windows
   needs: []
 
 ######## linux test ########
@@ -355,7 +374,7 @@ release:linux:armv7:
     - .linux:armv7
     - .release_ghcup
   before_script:
-    - ./.gitlab/before_script/linux/install_deps_manual.sh
+    - ./.gitlab/before_script/linux/install_deps.sh
   variables:
     ARTIFACT: "armv7-linux-ghcup"
     GHC_VERSION: "8.10.4"
@@ -368,7 +387,7 @@ release:linux:aarch64:
     - .linux:aarch64
     - .release_ghcup
   before_script:
-    - ./.gitlab/before_script/linux/install_deps_manual.sh
+    - ./.gitlab/before_script/linux/install_deps.sh
   variables:
     ARTIFACT: "aarch64-linux-ghcup"
     GHC_VERSION: "8.10.4"
@@ -398,8 +417,26 @@ release:darwin:aarch64:
     - .darwin:aarch64
     - .release_ghcup
     - .root_cleanup
-  before_script:
+  script: |
-    - ./.gitlab/before_script/darwin/install_deps.sh
+    set -Eeuo pipefail
+    function runInNixShell() {
+      time nix-shell .gitlab/shell.nix \
+        -I nixpkgs=https://github.com/angerman/nixpkgs/archive/75f7281738b.tar.gz \
+        --argstr system "aarch64-darwin" \
+        --pure \
+        --keep CI_PROJECT_DIR \
+        --keep MACOSX_DEPLOYMENT_TARGET \
+        --keep JSON_VERSION \
+        --keep ARTIFACT \
+        --keep OS \
+        --keep ARCH \
+        --keep CABAL_DIR \
+        --keep GHC_VERSION \
+        --keep CABAL_VERSION \
+        --run "$1" 2>&1
+    }
+    runInNixShell ./.gitlab/before_script/darwin/install_deps.sh 2>&1
+    runInNixShell ./.gitlab/script/ghcup_release.sh 2>&1
   variables:
     ARTIFACT: "aarch64-apple-darwin-ghcup"
     GHC_VERSION: "8.10.5"
@@ -417,24 +454,8 @@ release:freebsd:
     - .freebsd
     - .release_ghcup
     - .root_cleanup
-  script: |
+  before_script:
-    set -Eeuo pipefail
+    - ./.gitlab/before_script/freebsd/install_deps.sh
-    function runInNixShell() {
-      time nix-shell .gitlab/shell.nix \
-        -I nixpkgs=https://github.com/angerman/nixpkgs/archive/75f7281738b.tar.gz \
-        --argstr system "x86_64-darwin" \
-        --pure \
-        --keep GHC_VERSION --keep CABAL_INSTALL_VERSION --keep BUILD_FLAVOUR \
-        --keep BIN_DIST_PREP_TAR_COMP --keep CPUS --keep PROJECT_DIR \
-        --keep CI_PROJECT_DIR --keep MAKE_ARGS --keep HADRIAN_ARGS --keep CABAL_CACHE \
-        --keep LANG --keep CONFIGURE_ARGS --keep TEST_ENV --keep BIN_DIST_NAME \
-        --keep MACOSX_DEPLOYMENT_TARGET --keep ac_cv_func_clock_gettime --keep HACKAGE_INDEX_STATE \
-        --keep CABAL_DIR --keep ARCH --keep OS --keep CABAL_VERSION --keep GHC_VERSION \ 
-        --keep JSON_VERSION --ARTIFACT \
-        --run "$1" 2>&1
-    }
-    runInNixShell ./.gitlab/before_script/freebsd/install_deps.sh 2>&1
-    runInNixShell ./.gitlab/script/ghcup_release.sh 2>&1
   variables:
     ARTIFACT: "x86_64-portbld-freebsd-ghcup"
     GHC_VERSION: "8.10.5"

.gitlab/before_script/darwin/install_deps.sh

@@ -19,4 +19,14 @@ fi
 ./ghcup-bin set ${GHC_VERSION}
 ./ghcup-bin install-cabal ${CABAL_VERSION}
 
+if [ $ARCH = 'ARM64' ] ; then
+	cabal update
+	mkdir vendored
+	cd vendored
+	cabal unpack network-3.1.2.1
+	cd network*
+	autoreconf -fi
+	cd ../..
+fi
+
 exit 0

.gitlab/before_script/linux/install_deps.sh

@@ -7,9 +7,53 @@ set -eux
 mkdir -p "${TMPDIR}"
 
 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
+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
 
-curl -sSfL https://downloads.haskell.org/~ghcup/x86_64-linux-ghcup > ./ghcup-bin
+case "${ARCH}" in
+	ARM*)
+		case "${ARCH}" in
+			"ARM")
+				ghc_url=https://downloads.haskell.org/~ghc/${GHC_VERSION}/ghc-${GHC_VERSION}-armv7-deb10-linux.tar.xz
+				cabal_url=home.smart-cactus.org/~ben/cabal-install-${CABAL_VERSION}-armv7-linux-bootstrapped.tar.xz
+				;;
+			"ARM64")
+				ghc_url=https://downloads.haskell.org/~ghc/${GHC_VERSION}/ghc-${GHC_VERSION}-aarch64-deb10-linux.tar.xz
+				cabal_url=https://downloads.haskell.org/~cabal/cabal-install-${CABAL_VERSION}/cabal-install-${CABAL_VERSION}-aarch64-ubuntu-18.04.tar.xz
+				;;
+			*)
+				exit 1 ;;
+		esac
+
+		mkdir -p "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin
+
+		curl -O "${ghc_url}"
+		tar -xf ghc-*.tar.*
+		cd ghc-${GHC_VERSION}
+		./configure --prefix="${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/ghc/${GHC_VERSION}
+		make install
+		for i in "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/ghc/${GHC_VERSION}/bin/*-${GHC_VERSION} ; do
+			ln -s "${i}" "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin/${i##*/}
+		done
+		for x in "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin/*-${GHC_VERSION} ; do
+			ln -s ${x##*/} ${x%-${GHC_VERSION}}
+		done
+		cd ..
+		rm -rf ghc-${GHC_VERSION} ghc-*.tar.*
+		unset x i
+
+		mkdir cabal-install
+		cd cabal-install
+		curl -O "${cabal_url}"
+		tar -xf cabal-install-*
+		mv cabal "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin/cabal
+		cd ..
+		rm -rf cabal-install
+
+		;;
+	*) 
+		url=https://downloads.haskell.org/~ghcup/x86_64-linux-ghcup
+
+		curl -sSfL "${url}" > ./ghcup-bin
 		chmod +x ghcup-bin
 
 		./ghcup-bin upgrade -i -f
@@ -17,3 +61,6 @@ chmod +x ghcup-bin
 		./ghcup-bin set ${GHC_VERSION}
 		./ghcup-bin install-cabal ${CABAL_VERSION}
 
+		;;
+esac
+

.gitlab/before_script/linux/install_deps_manual.sh

@@ -1,64 +0,0 @@
-#!/bin/sh
-
-set -eux
-
-. "$( cd "$(dirname "$0")" ; pwd -P )/../../ghcup_env"
-
-mkdir -p "${TMPDIR}"
-
-ednf() {
-	case "${ARCH}" in
-		"ARM")
-			sudo dnf -y --forcearch armv7hl "$@"
-			;;
-		"ARM64")
-			sudo dnf -y --forcearch aarch64 "$@"
-			;;
-		*) exit 1 ;;
-	esac
-}
-
-ednf update
-ednf install gcc gcc-c++ gmp gmp-devel make ncurses ncurses-devel xz xz-devel perl zlib zlib-devel openssl-devel openssl-libs openssl libffi libffi-devel lbzip2 lbzip2-utils bzip2-devel
-if [ "${ARCH}" = "ARM64" ] ; then
-	ednf install numactl numactl-libs numactl-devel
-fi
-ednf install bash wget curl git tar
-ednf install llvm9.0 llvm9.0-devel llvm9.0-libs llvm9.0-static
-
-case "${ARCH}" in
-	"ARM")
-		ghc_url=https://downloads.haskell.org/~ghc/${GHC_VERSION}/ghc-${GHC_VERSION}-armv7-deb10-linux.tar.xz
-		cabal_url=home.smart-cactus.org/~ben/cabal-install-${CABAL_VERSION}-armv7-linux-bootstrapped.tar.xz
-		;;
-	"ARM64")
-		ghc_url=https://downloads.haskell.org/~ghc/${GHC_VERSION}/ghc-${GHC_VERSION}-aarch64-deb10-linux.tar.xz
-		cabal_url=https://downloads.haskell.org/~cabal/cabal-install-${CABAL_VERSION}/cabal-install-${CABAL_VERSION}-aarch64-ubuntu-18.04.tar.xz
-		;;
-	*) exit 1 ;;
-esac
-
-mkdir -p "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin
-
-curl -O "${ghc_url}"
-tar -xf ghc-*.tar.*
-cd ghc-${GHC_VERSION}
-./configure --prefix="${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/ghc/${GHC_VERSION}
-make install
-for i in "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/ghc/${GHC_VERSION}/bin/*-${GHC_VERSION} ; do
-	ln -s "${i}" "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin/${i##*/}
-done
-for x in "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin/*-${GHC_VERSION} ; do
-	ln -s ${x##*/} ${x%-${GHC_VERSION}}
-done
-cd ..
-rm -rf ghc-${GHC_VERSION} ghc-*.tar.*
-unset x i
-
-mkdir cabal-install
-cd cabal-install
-curl -O "${cabal_url}"
-tar -xf cabal-install-*
-mv cabal "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin/cabal
-cd ..
-rm -rf cabal-install

.gitlab/ghcup_env

@@ -4,6 +4,6 @@ if [ "${OS}" = "WINDOWS" ] ; then
 	export TMPDIR="$CI_PROJECT_DIR/tmp"
 else
 	export GHCUP_INSTALL_BASE_PREFIX="$CI_PROJECT_DIR"
-	export PATH="$CI_PROJECT_DIR/.ghcup/bin:$CI_PROJECT_DIR/.local/bin:$PATH"
+	export PATH="$CI_PROJECT_DIR/.ghcup/bin:$CI_PROJECT_DIR/.local/bin:/opt/llvm/bin:$PATH"
 	export TMPDIR="$CI_PROJECT_DIR/tmp"
 fi

.gitlab/script/ghcup_version.sh

@@ -104,6 +104,9 @@ if [ "${OS}" != "WINDOWS" ] ; then
 fi
 
 
+if [ "${OS}" = "DARWIN" ] && [ "${ARCH}" = "ARM64" ] ; then
+	echo
+else
 	# test installing new ghc doesn't mess with currently set GHC
 	# https://gitlab.haskell.org/haskell/ghcup-hs/issues/7
 	if [ "${OS}" = "LINUX" ] ; then
@@ -135,6 +138,7 @@ elif [ "${OS}" = "LINUX" ] ; then
 			stack --version
 		fi
 	fi
+fi
 
 
 eghcup rm $(ghc --numeric-version)
@@ -150,3 +154,11 @@ fi
 eghcup upgrade
 eghcup upgrade -f
 
+
+# nuke
+eghcup nuke
+if [ "${OS}" = "WINDOWS" ] ; then
+	[ ! -e "${GHCUP_INSTALL_BASE_PREFIX}/ghcup" ]
+else
+	[ ! -e "${GHCUP_INSTALL_BASE_PREFIX}/.ghcup" ]
+fi

.gitlab/shell.nix

@@ -44,9 +44,6 @@
   # unconditionally add the MacOSX.sdk and TargetConditional.h
   export NIX_CFLAGS_COMPILE+=" -isystem /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include"
 
-  # Use an architecture specific home, so cabal for different architectures don't confuse each other.
-  export HOME="$HOME/$(uname -m)-home"
-  mkdir -p $HOME
   '';
 
   nativeBuildInputs = (with pkgs; [
@@ -81,6 +78,7 @@
 
     which
     wget
+	curl
     file
 
     xz

CHANGELOG.md

@@ -1,5 +1,17 @@
 # Revision history for ghcup
 
+## 0.1.16 -- ????-??-??
+
+* Add 'nuke' subcommand wrt [#135](https://gitlab.haskell.org/haskell/ghcup-hs/-/issues/135), implemented by Arjun Kathuria
+
+## 0.1.15.2 -- 2021-06-13
+
+* Remove legacy handling of cabal binary and be more graceful about binaries not installed by ghcup (e.g. stack)
+* Fix GHC compilation from git
+* Fix 'ghcup upgrade' on windows
+* Allow to skip update checks via `GHCUP_SKIP_UPDATE_CHECK`
+* Use libarchive on windows as well, fixing unpack errors wrt [#147](https://gitlab.haskell.org/haskell/ghcup-hs/-/issues/147)
+
 ## 0.1.15.1 -- 2021-06-11
 
 * Add Apple Silicon support

HACKING.md

@@ -69,3 +69,7 @@ yaml files: `ghcup-<yaml-ver>.yaml`.
    Most of the `Version` parameters to functions had to be replaced with
    that and ensured the logic is consistent for cross and non-cross
    installs.
+2. This refactor added windows support wrt [#130](https://gitlab.haskell.org/haskell/ghcup-hs/-/issues/130).
+   The major changes here were switching `hpath` library out for `filepath`/`directory` (sadly) and
+   introducing a non-unix way of handling processes via the `process` library. It also introduced considerable
+   amounts of CPP wrt file handling, installation etc.

README.md

@@ -1,5 +1,5 @@
 `ghcup` makes it easy to install specific versions of `ghc` on GNU/Linux,
-macOS (aka Darwin) and FreeBSD and can also bootstrap a fresh Haskell developer environment from scratch.
+macOS (aka Darwin), FreeBSD and Windows and can also bootstrap a fresh Haskell developer environment from scratch.
 It follows the unix UNIX philosophy of [do one thing and do it well](https://en.wikipedia.org/wiki/Unix_philosophy#Do_One_Thing_and_Do_It_Well).
 
 Similar in scope to [rustup](https://github.com/rust-lang-nursery/rustup.rs), [pyenv](https://github.com/pyenv/pyenv) and [jenv](http://www.jenv.be).
@@ -85,7 +85,7 @@ handles your haskell packages and can demand that [a specific version](https://c
 A configuration file can be put in `~/.ghcup/config.yaml`. The default config file
 explaining all possible configurations can be found in this repo: [config.yaml](./config.yaml).
 
-Partial configuration is fine. Command line options always overwrite the config file settings.
+Partial configuration is fine. Command line options always override the config file settings.
 
 ### Manpages
 

app/ghcup/Main.hs

@@ -103,6 +103,7 @@ data Command
   | Upgrade UpgradeOpts Bool
   | ToolRequirements
   | ChangeLog ChangeLogOptions
+  | Nuke
 #if defined(BRICK)
   | Interactive
 #endif
@@ -368,6 +369,14 @@ com =
               )
           <> internal
           )
+     <|> subparser
+          (command
+              "nuke"
+               (info (pure Nuke <**> helper)
+                     (progDesc "Completely remove ghcup from your system"))
+           <> commandGroup "Nuclear Commands:"
+          )
+
  where
   installToolFooter :: String
   installToolFooter = [s|Discussion:
@@ -393,7 +402,6 @@ com =
   By default returns the URI of the ChangeLog of the latest GHC release.
   Pass '-o' to automatically open via xdg-open.|]
 
-
 installCabalFooter :: String
 installCabalFooter = [s|Discussion:
   Installs the specified cabal-install version (or a recommended default one)
@@ -1105,7 +1113,10 @@ Report bugs at <https://gitlab.haskell.org/haskell/ghcup-hs/issues>|]
           let loggerConfig = LoggerConfig
                 { lcPrintDebug = verbose settings
                 , colorOutter  = B.hPut stderr
-                , rawOutter    = B.appendFile logfile
+                , rawOutter    =
+                    case optCommand of
+                      Nuke -> \_ -> pure ()
+                      _ -> B.appendFile logfile
                 }
           let runLogger = myLoggerT loggerConfig
           let siletRunLogger = myLoggerT loggerConfig { colorOutter = \_ -> pure () }
@@ -1693,9 +1704,41 @@ Make sure to clean up #{tmpdir} afterwards.|])
                                 >> pure (ExitFailure 13)
                     else putStrLn uri' >> pure ExitSuccess
 
+            Nuke ->
+              runRm (do
+                   lift $ $logWarn "WARNING: This will remove GHCup and all installed components from your system."
+                   lift $ $logWarn "Waiting 10 seconds before commencing, if you want to cancel it, now would be the time."
+                   liftIO $ threadDelay 10000000  -- wait 10s
+
+                   lift $ $logInfo "Initiating Nuclear Sequence 🚀🚀🚀"
+                   lift $ $logInfo "Nuking in 3...2...1"
+              
+                   lInstalled <- lift $ listVersions Nothing (Just ListInstalled)
+
+                   forM_ lInstalled (liftE . rmTool)
+
+                   lift rmGhcupDirs
+
+                   ) >>= \case
+                            VRight leftOverFiles
+                              | null leftOverFiles -> do
+                                  runLogger $ $logInfo "Nuclear Annihilation complete!"
+                                  pure ExitSuccess
+                              | otherwise -> do
+                                  runLogger $ $logWarn "These Files have survived Nuclear Annihilation, you may remove them manually."
+                                  forM_ leftOverFiles putStrLn
+                                  pure ExitSuccess
+
+                            VLeft e -> do
+                              runLogger $ $(logError) $ T.pack $ prettyShow e
+                              pure $ ExitFailure 15
+
+
           case res of
             ExitSuccess        -> pure ()
             ef@(ExitFailure _) -> exitWith ef
+
+
   pure ()
 
 fromVersion :: (MonadLogger m, MonadFail m, MonadReader AppState m, MonadThrow m, MonadIO m, MonadCatch m)

bootstrap-haskell

@@ -16,7 +16,7 @@
 
 plat="$(uname -s)"
 arch=$(uname -m)
-ghver="0.1.15.1"
+ghver="0.1.15.2"
 base_url="https://downloads.haskell.org/~ghcup"
 
 case "${plat}" in
@@ -210,6 +210,90 @@ download_ghcup() {
     eghcup upgrade
 }
 
+adjust_bashrc() {
+	case $SHELL in
+		*/zsh) # login shell is zsh
+			GHCUP_PROFILE_FILE="$HOME/.zshrc"
+			MY_SHELL="zsh" ;;
+		*/bash) # login shell is bash
+			GHCUP_PROFILE_FILE="$HOME/.bashrc"
+			MY_SHELL="bash" ;;
+		*/sh) # login shell is sh, but might be a symlink to bash or zsh
+			if [ -n "${BASH}" ] ; then
+				GHCUP_PROFILE_FILE="$HOME/.bashrc"
+				MY_SHELL="bash"
+			elif [ -n "${ZSH_VERSION}" ] ; then
+				GHCUP_PROFILE_FILE="$HOME/.zshrc"
+				MY_SHELL="zsh"
+			else
+				return
+			fi
+			;;
+		*/fish) # login shell is fish
+			GHCUP_PROFILE_FILE="$HOME/.config/fish/config.fish"
+			MY_SHELL="fish" ;;
+		*) return ;;
+	esac
+
+
+	warn ""
+	warn "Detected ${MY_SHELL} shell on your system..."
+	warn "If you want ghcup to automatically add the required PATH variable to \"${GHCUP_PROFILE_FILE}\""
+	warn ""
+	warn "[Y] Yes  [N] No  [?] Help (default is \"Y\")."
+	warn ""
+
+	while true; do
+		if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
+			read -r next_answer </dev/tty
+		else
+			next_answer="yes"
+		fi
+
+		case $next_answer in
+			[Nn]*)
+				return ;;
+			[Yy]* | "")
+				case $MY_SHELL in
+					"") break ;;
+					fish)
+							mkdir -p "${GHCUP_PROFILE_FILE%/*}"
+							sed -i -e '/# ghcup-env$/ s/^#*/#/' "${GHCUP_PROFILE_FILE}"
+							echo "set -q GHCUP_INSTALL_BASE_PREFIX[1]; or set GHCUP_INSTALL_BASE_PREFIX \$HOME ; test -f $GHCUP_DIR/env ; and set -gx PATH \$HOME/.cabal/bin $GHCUP_BIN \$PATH # ghcup-env" >> "${GHCUP_PROFILE_FILE}"
+						break ;;
+					bash)
+						sed -i -e '/# ghcup-env$/ s/^#*/#/' "${GHCUP_PROFILE_FILE}"
+						echo "[ -f \"${GHCUP_DIR}/env\" ] && source \"${GHCUP_DIR}/env\" # ghcup-env" >> "${GHCUP_PROFILE_FILE}"
+						case "${plat}" in
+							"Darwin"|"darwin")
+								if ! grep -q "ghcup-env" "${HOME}/.bash_profile" ; then
+									echo "[[ -f ~/.bashrc ]] && source ~/.bashrc # ghcup-env" >> "${HOME}/.bash_profile"
+								fi
+								;;
+						esac
+						break ;;
+
+					zsh)
+						sed -i -e '/# ghcup-env$/ s/^#*/#/' "${GHCUP_PROFILE_FILE}"
+						echo "[ -f \"${GHCUP_DIR}/env\" ] && source \"${GHCUP_DIR}/env\" # ghcup-env" >> "${GHCUP_PROFILE_FILE}"
+						break ;;
+				esac
+				warn "OK! ${GHCUP_PROFILE_FILE} has been modified. Restart your terminal for the changes to take effect,"
+				warn "or type \"source ${GHCUP_DIR}/env\" to apply them in your current terminal session."
+				return
+				;;
+			*)
+				echo "Possible choices are:"
+				echo
+				echo "Y - Yes, update my \"${GHCUP_PROFILE_FILE}\" (default)"
+				echo "N - No, don't mess with my configuration"
+				echo
+				echo "Please make your choice and press ENTER."
+				;;
+		esac
+	done
+}
+
 
 echo
 echo "Welcome to Haskell!"
@@ -317,6 +401,7 @@ esac
 
 edo cabal new-update
 
+
 if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
 	warn "Do you want to install haskell-language-server (HLS) now?"
 	warn "HLS is a language-server that provides IDE-like functionality"
@@ -331,7 +416,7 @@ if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
 
 		case $hls_answer in
 			[Yy]*)
-				eghcup --cache install hls || warn "HLS installation failed, continuing anyway"
+				_eghcup --cache install hls || warn "HLS installation failed, continuing anyway"
 				break ;;
 			[Nn]* | "")
 				break ;;
@@ -358,7 +443,7 @@ if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
 
 		case $stack_answer in
 			[Yy]*)
-				eghcup --cache install stack || warn "Stack installation failed, continuing anyway"
+				_eghcup --cache install stack || warn "Stack installation failed, continuing anyway"
 				break ;;
 			[Nn]* | "")
 				break ;;
@@ -372,89 +457,24 @@ if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
 				;;
 		esac
 	done
+fi
 
+# short-circuit script based on platform
+case "${plat}" in
+        MSYS*|MINGW*)
+			# For windows we always adjust bashrc, since it's inside msys2
+			adjust_bashrc
+			;;
+		*)
+        	if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
 				echo "In order to run ghc and cabal, you need to adjust your PATH variable."
 				echo "You may want to source '$GHCUP_DIR/env' in your shell"
 				echo "configuration to do so (e.g. ~/.bashrc)."
 
-	case $SHELL in
+				adjust_bashrc
-		*/zsh) # login shell is zsh
-			GHCUP_PROFILE_FILE="$HOME/.zshrc"
-			MY_SHELL="zsh" ;;
-		*/bash) # login shell is bash
-			GHCUP_PROFILE_FILE="$HOME/.bashrc"
-			MY_SHELL="bash" ;;
-		*/sh) # login shell is sh, but might be a symlink to bash or zsh
-			if [ -n "${BASH}" ] ; then
-				GHCUP_PROFILE_FILE="$HOME/.bashrc"
-				MY_SHELL="bash"
-			elif [ -n "${ZSH_VERSION}" ] ; then
-				GHCUP_PROFILE_FILE="$HOME/.zshrc"
-				MY_SHELL="zsh"
-			else
-			    _done
-			fi
-			;;
-		*/fish) # login shell is fish
-			GHCUP_PROFILE_FILE="$HOME/.config/fish/config.fish"
-			MY_SHELL="fish" ;;
-		*) _done ;;
-	esac
-
-
-	warn ""
-	warn "Detected ${MY_SHELL} shell on your system..."
-	warn "If you want ghcup to automatically add the required PATH variable to \"${GHCUP_PROFILE_FILE}\""
-	warn ""
-	warn "[Y] Yes  [N] No  [?] Help (default is \"Y\")."
-	warn ""
-
-    while true; do
-        read -r next_answer </dev/tty
-
-        case $next_answer in
-            [Nn]*)
-                _done ;;
-            [Yy]* | "")
-				case $MY_SHELL in
-					"") break ;;
-					fish)
-							mkdir -p "${GHCUP_PROFILE_FILE%/*}"
-							sed -i -e '/# ghcup-env$/ s/^#*/#/' "${GHCUP_PROFILE_FILE}"
-							echo "set -q GHCUP_INSTALL_BASE_PREFIX[1]; or set GHCUP_INSTALL_BASE_PREFIX \$HOME ; test -f $GHCUP_DIR/env ; and set -gx PATH \$HOME/.cabal/bin $GHCUP_BIN \$PATH # ghcup-env" >> "${GHCUP_PROFILE_FILE}"
-						break ;;
-					bash)
-						sed -i -e '/# ghcup-env$/ s/^#*/#/' "${GHCUP_PROFILE_FILE}"
-						echo "[ -f \"${GHCUP_DIR}/env\" ] && source \"${GHCUP_DIR}/env\" # ghcup-env" >> "${GHCUP_PROFILE_FILE}"
-						case "${plat}" in
-							"Darwin"|"darwin")
-								if ! grep -q "ghcup-env" "${HOME}/.bash_profile" ; then
-									echo "[[ -f ~/.bashrc ]] && source ~/.bashrc # ghcup-env" >> "${HOME}/.bash_profile"
 			fi
 			;;
 esac
-						break ;;
-
-					zsh)
-						sed -i -e '/# ghcup-env$/ s/^#*/#/' "${GHCUP_PROFILE_FILE}"
-						echo "[ -f \"${GHCUP_DIR}/env\" ] && source \"${GHCUP_DIR}/env\" # ghcup-env" >> "${GHCUP_PROFILE_FILE}"
-						break ;;
-				esac
-                warn "OK! ${GHCUP_PROFILE_FILE} has been modified. Restart your terminal for the changes to take effect,"
-                warn "or type \"source ${GHCUP_DIR}/env\" to apply them in your current terminal session."
-				_done
-                ;;
-			*)
-				echo "Possible choices are:"
-				echo
-				echo "Y - Yes, update my \"${GHCUP_PROFILE_FILE}\" (default)"
-				echo "N - No, don't mess with my configuration"
-				echo
-				echo "Please make your choice and press ENTER."
-				;;
-        esac
-    done
-fi
 
 _done
 

bootstrap-haskell.ps1

@@ -13,20 +13,24 @@
     * hls   - (optional) A language server for developers to integrate with their editor/IDE"
 #>
 param (
-    # Run a non-interactive installation
+    # Run an interactive installation
-    [switch]$Silent,
+    [switch]$Interactive,
     # Specify the install root (default: 'C:\')
     [string]$InstallDir,
     # Instead of installing a new MSys2, use an existing installation
     [string]$ExistingMsys2Dir,
     # Specify the cabal root directory (default: '$InstallDir\cabal')
     [string]$CabalDir,
-    # Perform a quick installation, omitting some expensive operations (you may have to install dependencies yourself later)
-    [bool]$Quick,
     # Overwrite (or rather backup) a previous install
-    [bool]$Overwrite
+    [switch]$Overwrite,
+    # Specify the bootstrap url (default: 'https://www.haskell.org/ghcup/sh/bootstrap-haskell')
+    [string]$BootstrapUrl,
+    # Run the final bootstrap script via 'bash' instead of a full newly spawned msys2 shell
+    [switch]$InBash
 )
 
+$Silent = !$Interactive
+
 function Print-Msg {
   param ( [Parameter(Mandatory=$true, HelpMessage='String to output')][string]$msg, [string]$color = "Green" )
   Write-Host ('{0}' -f $msg) -ForegroundColor $color
@@ -151,7 +155,27 @@ $GhcupBasePrefixEnv = [System.Environment]::GetEnvironmentVariable('GHCUP_INSTAL
 if ($GhcupBasePrefixEnv) {
   $defaultGhcupBasePrefix = $GhcupBasePrefixEnv
 } else {
-  $defaultGhcupBasePrefix = 'C:\'
+  $partitions = Get-CimInstance win32_logicaldisk
+  $defaultGhcupBasePrefix = $null
+  foreach ($p in $partitions){
+    try {
+      if ($p."FreeSpace" -lt 5368709120) { # at least 5 GB are needed
+        throw ("Not enough free space on {0}" -f $p."DeviceId")
+      }
+      $null = New-Item -Path ('{0}\' -f $p."DeviceId") -Name "ghcup.test" -ItemType "directory" -Force
+      $defaultGhcupBasePrefix = ('{0}\' -f $p."DeviceId")
+      Remove-Item -LiteralPath ('{0}\ghcup.test' -f $p."DeviceId")
+      break
+    } catch {
+      Print-Msg -color Yellow -msg ("{0} not writable or not enough disk space, trying next device" -f $p."DeviceId")
+    }
+  }
+  if ($defaultGhcupBasePrefix) {
+    Print-Msg -color Green -msg ("Picked {0} as default Install prefix!" -f $defaultGhcupBasePrefix)
+  } else {
+    Print-Msg -color Red -msg "Couldn't find a writable partition with at least 5GB free disk space!"
+    Exit 1    
+  }
 }
 
 if ($Silent -and !($InstallDir)) {
@@ -194,7 +218,9 @@ $null = [Environment]::SetEnvironmentVariable("GHCUP_INSTALL_BASE_PREFIX", $Ghcu
 $GhcupDir = ('{0}\ghcup' -f $GhcupBasePrefix)
 $MsysDir = ('{0}\msys64' -f $GhcupDir)
 $Bash = ('{0}\usr\bin\bash' -f $MsysDir)
+if (!($BootstrapUrl)) {
   $BootstrapUrl = 'https://www.haskell.org/ghcup/sh/bootstrap-haskell'
+}
 $GhcupMsys2 = [System.Environment]::GetEnvironmentVariable('GHCUP_MSYS2', 'user')
 
 Print-Msg -msg 'Preparing for GHCup installation...'
@@ -268,20 +294,8 @@ if (!(Test-Path -Path ('{0}' -f $MsysDir))) {
     Print-Msg -msg 'Upgrading full system twice...'
     Exec "$Bash" '-lc' 'pacman --noconfirm -Syuu'
 
-    if ($Quick) {
-      $ghcBuildDeps = $Quick
-    } elseif (!($Silent)) {
-      $ghcBuildDeps = $Host.UI.PromptForChoice('Install Dependencies'
-        , 'Install a standard set of mingw64 packages to be able to build various haskell packages requiring unix libraries? (recommended, however this might take a while... if you skip this, you might have to do it manually later)'
-        , [System.Management.Automation.Host.ChoiceDescription[]] @('&Yes'
-            '&No'), 0)
-    } else {
-      $ghcBuildDeps = 0
-    }
-    if ($ghcBuildDeps -eq 0) {
     Print-Msg -msg 'Installing Dependencies...'
-      Exec "$Bash" '-lc' 'pacman --noconfirm -S --needed git tar curl wget base-devel gettext binutils autoconf make libtool automake pkgconf python p7zip patch unzip'
+    Exec "$Bash" '-lc' 'pacman --noconfirm -S --needed curl mingw-w64-x86_64-pkgconf'
-    }
 
     Print-Msg -msg 'Updating SSL root certificate authorities...'
     Exec "$Bash" '-lc' 'pacman --noconfirm -S ca-certificates'
@@ -319,8 +333,11 @@ if (!(Test-Path -Path ('{0}' -f $MsysDir))) {
 }
 
 Print-Msg -msg 'Creating shortcuts...'
-Create-Shortcut -SourceExe ('{0}\msys2_shell.cmd' -f $MsysDir) -ArgumentsToSourceExe '-mingw64' -DestinationPath ('{0}\Desktop\Mingw haskell shell.lnk' -f $HOME)
+$DesktopDir = [Environment]::GetFolderPath("Desktop")
-Create-Shortcut -SourceExe 'https://www.msys2.org/docs/package-management' -ArgumentsToSourceExe '' -DestinationPath ('{0}\Desktop\Mingw package management docs.url' -f $HOME)
+$GhcInstArgs = '-mingw64 -mintty -c "pacman --noconfirm -S --needed base-devel gettext autoconf make libtool automake python p7zip patch unzip"'
+Create-Shortcut -SourceExe ('{0}\msys2_shell.cmd' -f $MsysDir) -ArgumentsToSourceExe $GhcInstArgs -DestinationPath ('{0}\Install GHC dev dependencies.lnk' -f $DesktopDir)
+Create-Shortcut -SourceExe ('{0}\msys2_shell.cmd' -f $MsysDir) -ArgumentsToSourceExe '-mingw64' -DestinationPath ('{0}\Mingw haskell shell.lnk' -f $DesktopDir)
+Create-Shortcut -SourceExe 'https://www.msys2.org/docs/package-management' -ArgumentsToSourceExe '' -DestinationPath ('{0}\Mingw package management docs.url' -f $DesktopDir)
 
 Print-Msg -msg ('Adding {0}\bin to Users Path...' -f $GhcupDir)
 Add-EnvPath -Path ('{0}\bin' -f ([System.IO.Path]::GetFullPath("$GhcupDir"))) -Container 'User'
@@ -368,10 +385,10 @@ if ($Silent) {
   $SilentExport = ''
 }
 
-if ((Get-Process -ID $PID).ProcessName.StartsWith("bootstrap-haskell")) {
+if ((Get-Process -ID $PID).ProcessName.StartsWith("bootstrap-haskell") -Or $InBash) {
-  Exec "$Bash" '-lc' ('{4} [ -n ''{1}'' ] && export GHCUP_MSYS2=$(cygpath -m ''{1}'') ; [ -n ''{2}'' ] && export GHCUP_INSTALL_BASE_PREFIX=$(cygpath -m ''{2}/'') ; export PATH=$(cygpath -u ''{3}/bin''):$PATH ; export CABAL_DIR=''{5}'' ; curl --proto ''=https'' --tlsv1.2 -sSf {0} | bash' -f $BootstrapUrl, $MsysDir, $GhcupBasePrefix, $GhcupDir, $SilentExport, $CabalDirFull)
+  Exec "$Bash" '-lc' ('{4} [ -n ''{1}'' ] && export GHCUP_MSYS2=$(cygpath -m ''{1}'') ; [ -n ''{2}'' ] && export GHCUP_INSTALL_BASE_PREFIX=$(cygpath -m ''{2}/'') ; export PATH=$(cygpath -u ''{3}/bin''):$PATH ; export CABAL_DIR=''{5}'' ; [[ ''{0}'' = https* ]]  && curl --proto ''=https'' --tlsv1.2 -sSf {0} | bash || cat $(cygpath -m ''{0}'') | bash' -f $BootstrapUrl, $MsysDir, $GhcupBasePrefix, $GhcupDir, $SilentExport, $CabalDirFull)
 } else {
-  Exec "$Msys2Shell" '-mingw64' '-mintty' '-c' ('{4} [ -n ''{1}'' ] && export GHCUP_MSYS2=$(cygpath -m ''{1}'') ; [ -n ''{2}'' ] && export GHCUP_INSTALL_BASE_PREFIX=$(cygpath -m ''{2}/'') ; export PATH=$(cygpath -u ''{3}/bin''):$PATH ; export CABAL_DIR=''{5}'' ; trap ''echo Press any key to exit && read -n 1 && exit'' 2 ; curl --proto =https --tlsv1.2 -sSf -k {0} | bash ; echo ''Press any key to exit'' && read -n 1' -f $BootstrapUrl, $MsysDir, $GhcupBasePrefix, $GhcupDir, $SilentExport, $CabalDirFull)
+  Exec "$Msys2Shell" '-mingw64' '-mintty' '-c' ('{4} [ -n ''{1}'' ] && export GHCUP_MSYS2=$(cygpath -m ''{1}'') ; [ -n ''{2}'' ] && export GHCUP_INSTALL_BASE_PREFIX=$(cygpath -m ''{2}/'') ; export PATH=$(cygpath -u ''{3}/bin''):$PATH ; export CABAL_DIR=''{5}'' ; trap ''echo Press any key to exit && read -n 1 && exit'' 2 ; [[ ''{0}'' = https* ]]  && curl --proto ''=https'' --tlsv1.2 -sSf {0} | bash || cat $(cygpath -m ''{0}'') | bash ; echo ''Press any key to exit'' && read -n 1' -f $BootstrapUrl, $MsysDir, $GhcupBasePrefix, $GhcupDir, $SilentExport, $CabalDirFull)
 }
 
 
@@ -399,3 +416,7 @@ if ((Get-Process -ID $PID).ProcessName.StartsWith("bootstrap-haskell")) {
   # E5VhEwLBnwzWrvLKtdEclhgUCo5Tq87QMXVdgX4aRmunl4ZE+Q==
 # SIG # End signature block
 
+
+
+
+

cabal.project

@@ -1,5 +1,7 @@
 packages: ./ghcup.cabal
 
+optional-packages: ./vendored/*/*.cabal
+
 optimization: 2
 
 package ghcup

ghcup-0.0.4.yaml

@@ -1868,7 +1868,7 @@ ghcupDownloads:
               dlUri: https://downloads.haskell.org/~ghcup/unofficial-bindists/cabal/3.4.0.0/cabal-install-3.4.0.0-armv7-linux-bootstrapped.tar.xz
               dlHash: 16c0d1eaba24bed14f3e152970179a45d9f9bb5cc839b2c210ad06eb7d4826ed
   GHCup:
-    0.1.15.1:
+    0.1.15.2:
       viTags:
       - Recommended
       - Latest
@@ -1878,39 +1878,39 @@ ghcupDownloads:
         A_64:
           Linux_UnknownLinux:
             unknown_versioning: &ghcup-64
-              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.1/x86_64-linux-ghcup-0.1.15.1
+              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.2/x86_64-linux-ghcup-0.1.15.2
-              dlHash: 871c9dc1bfbf7df6fe3b9b7250c20a3dae8a7aee171712a3e63689ab75bc9439
+              dlHash: 1eb1bb318a327754f42eaa2245bc81fe53be7c791160d28a186893ded3004ed7
           Darwin:
             unknown_versioning:
-              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.1/x86_64-apple-darwin-ghcup-0.1.15.1
+              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.2/x86_64-apple-darwin-ghcup-0.1.15.2
-              dlHash: 7cd67b554fc58c4ffb224b73e369c5dd27c5276c01f102f6423230b34cc635bc
+              dlHash: c2a6436a49f19f108493954d4a3efcb27503e343dd6288c2641784d32320b1ea
           FreeBSD:
             unknown_versioning:
-              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.1/x86_64-portbld-freebsd-ghcup-0.1.15.1
+              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.2/x86_64-portbld-freebsd-ghcup-0.1.15.2
-              dlHash: b4ad9c9f1a878560e8f770d985d53b8fb70582baf99e40e53ec9ee97dc47ae64
+              dlHash: 7e0c17dd78ebd9fd03e6ecea278c192bac31ca333721bde5b0ef99438b847a20
           Linux_Alpine:
             unknown_versioning: *ghcup-64
         A_32:
           Linux_UnknownLinux:
             unknown_versioning: &ghcup-32
-              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.1/i386-linux-ghcup-0.1.15.1
+              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.2/i386-linux-ghcup-0.1.15.2
-              dlHash: 0c1dcbdd7cfa8accdfbe14c623924f3ca29a35d32a2ac3e61f0eb322855e2cb1
+              dlHash: 3b1fe710cded0398e920ec9716089ba65226abf181741897f387e7c539a619c2
           Linux_Alpine:
             unknown_versioning: *ghcup-32
         A_ARM64:
           Linux_UnknownLinux:
             unknown_versioning:
-              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.1/aarch64-linux-ghcup-0.1.15.1
+              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.2/aarch64-linux-ghcup-0.1.15.2
-              dlHash: 7fa29d8e9a9fe3d1e3a63a1d16fc3550128edbdb9b5b5dff7974358c4dab192c
+              dlHash: d91b7a5416f292f2cf813824eb419f76ad9976d258cee3581123cb6eb01db9a7
           Darwin:
             unknown_versioning:
-              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.1/aarch64-apple-darwin-ghcup-0.1.15.1
+              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.2/aarch64-apple-darwin-ghcup-0.1.15.2
-              dlHash: 6a743cd50e8124ac2de8be77013d49dcf3b99ce7cc463ec86ed99a904a51dfd9
+              dlHash: 20625ba5e7488f2a6155331750ecead3815ea16b2695c20521633c1412f012cc
         A_ARM:
           Linux_UnknownLinux:
             unknown_versioning:
-              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.1/armv7-linux-ghcup-0.1.15.1
+              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.2/armv7-linux-ghcup-0.1.15.2
-              dlHash: 77ee5d9828c2ba771127274e301e81412b9f29af2d65dd85dada4786d9438c2c
+              dlHash: 03a4af5ed895ada1dd21f4cc3f64dc9078a5bf4268313021d004c04bea7f9c2e
   HLS:
     1.1.0:
       viTags:

ghcup-0.0.5.yaml

@@ -1,8 +1,8 @@
 ---
 globalTools:
   ShimGen:
-    dlUri: https://downloads.haskell.org/~ghcup/shimgen/gs.exe
+    dlUri: https://downloads.haskell.org/~ghcup/shimgen/shim-2.exe
-    dlHash: 9ce8b7dad7ff4e5017dbd63d6f6f3d16412b889560cb6ccd3903dbcab0bf4f0d
+    dlHash: 7c55e201f71860c5babea886007c8fa44b861abf50d1c07e5677eb0bda387a70
 toolRequirements:
   GHC:
     unknown_version:
@@ -2024,7 +2024,7 @@ ghcupDownloads:
               dlUri: https://downloads.haskell.org/~ghcup/unofficial-bindists/cabal/3.4.0.0/cabal-install-3.4.0.0-armv7-linux-bootstrapped.tar.xz
               dlHash: 16c0d1eaba24bed14f3e152970179a45d9f9bb5cc839b2c210ad06eb7d4826ed
   GHCup:
-    0.1.15.1:
+    0.1.15.2:
       viTags:
       - Recommended
       - Latest
@@ -2034,48 +2034,46 @@ ghcupDownloads:
         A_64:
           Linux_UnknownLinux:
             unknown_versioning: &ghcup-64
-              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.1/x86_64-linux-ghcup-0.1.15.1
+              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.2/x86_64-linux-ghcup-0.1.15.2
-              dlHash: 871c9dc1bfbf7df6fe3b9b7250c20a3dae8a7aee171712a3e63689ab75bc9439
+              dlHash: 1eb1bb318a327754f42eaa2245bc81fe53be7c791160d28a186893ded3004ed7
           Darwin:
             unknown_versioning:
-              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.1/x86_64-apple-darwin-ghcup-0.1.15.1
+              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.2/x86_64-apple-darwin-ghcup-0.1.15.2
-              dlHash: 7cd67b554fc58c4ffb224b73e369c5dd27c5276c01f102f6423230b34cc635bc
+              dlHash: c2a6436a49f19f108493954d4a3efcb27503e343dd6288c2641784d32320b1ea
           FreeBSD:
             unknown_versioning:
-              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.1/x86_64-portbld-freebsd-ghcup-0.1.15.1
+              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.2/x86_64-portbld-freebsd-ghcup-0.1.15.2
-              dlHash: b4ad9c9f1a878560e8f770d985d53b8fb70582baf99e40e53ec9ee97dc47ae64
+              dlHash: 7e0c17dd78ebd9fd03e6ecea278c192bac31ca333721bde5b0ef99438b847a20
           Windows:
             unknown_versioning:
-              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.1/x86_64-mingw64-ghcup-0.1.15.1.exe
+              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.2/x86_64-mingw64-ghcup-0.1.15.2.exe
-              dlHash: 045bac4620fc9d1119ed4961aeba46b616ed572dd11b7d35b48caf58eea08d0f
+              dlHash: 4d832052754379531ac472aeef35666e433acfee79d4079826b8ede8ca5de520
           Linux_Alpine:
             unknown_versioning: *ghcup-64
         A_32:
           Linux_UnknownLinux:
             unknown_versioning: &ghcup-32
-              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.1/i386-linux-ghcup-0.1.15.1
+              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.2/i386-linux-ghcup-0.1.15.2
-              dlHash: 0c1dcbdd7cfa8accdfbe14c623924f3ca29a35d32a2ac3e61f0eb322855e2cb1
+              dlHash: 3b1fe710cded0398e920ec9716089ba65226abf181741897f387e7c539a619c2
           Linux_Alpine:
             unknown_versioning: *ghcup-32
         A_ARM64:
           Linux_UnknownLinux:
             unknown_versioning:
-              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.1/aarch64-linux-ghcup-0.1.15.1
+              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.2/aarch64-linux-ghcup-0.1.15.2-r2
-              dlHash: 7fa29d8e9a9fe3d1e3a63a1d16fc3550128edbdb9b5b5dff7974358c4dab192c
+              dlHash: d67702f7c9e3586e85ed7c1bd09b7544da55bd1d3b4a961a07018348f78cf76b
           Darwin:
             unknown_versioning:
-              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.1/aarch64-apple-darwin-ghcup-0.1.15.1
+              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.2/aarch64-apple-darwin-ghcup-0.1.15.2
-              dlHash: 6a743cd50e8124ac2de8be77013d49dcf3b99ce7cc463ec86ed99a904a51dfd9
+              dlHash: 20625ba5e7488f2a6155331750ecead3815ea16b2695c20521633c1412f012cc
         A_ARM:
           Linux_UnknownLinux:
             unknown_versioning:
-              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.1/armv7-linux-ghcup-0.1.15.1
+              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.2/armv7-linux-ghcup-0.1.15.2
-              dlHash: 77ee5d9828c2ba771127274e301e81412b9f29af2d65dd85dada4786d9438c2c
+              dlHash: 03a4af5ed895ada1dd21f4cc3f64dc9078a5bf4268313021d004c04bea7f9c2e
   HLS:
     1.1.0:
-      viTags:
+      viTags: []
-        - Recommended
-        - Latest
       viChangeLog: https://github.com/haskell/haskell-language-server/blob/master/ChangeLog.md#110
       viPostInstall: "This is just the server part of your LSP configuration. Consult the README on how to configure HLS, your project and your LSP client in your editor: https://github.com/haskell/haskell-language-server/blob/master/README.md"
       viArch:
@@ -2094,6 +2092,28 @@ ghcupDownloads:
               dlHash: a1d3f451e64a041aa527a25da29e4716a2de6ae347cef4ef9312fc7611e168cc
           Linux_Alpine:
             unknown_versioning: *hls-64
+    1.2.0:
+      viTags:
+        - Recommended
+        - Latest
+      viChangeLog: https://github.com/haskell/haskell-language-server/blob/master/ChangeLog.md#120
+      viPostInstall: "This is just the server part of your LSP configuration. Consult the README on how to configure HLS, your project and your LSP client in your editor: https://github.com/haskell/haskell-language-server/blob/master/README.md"
+      viArch:
+        A_64:
+          Linux_UnknownLinux:
+            unknown_versioning: &hls-64
+              dlUri: https://github.com/haskell/haskell-language-server/releases/download/1.2.0/haskell-language-server-Linux-1.2.0.tar.gz
+              dlHash: d29ee22f7bd706da2e2a1bd7640e25bb9736adeafb34eef47d29ea143b0fa927
+          Darwin:
+            unknown_versioning:
+              dlUri: https://github.com/haskell/haskell-language-server/releases/download/1.2.0/haskell-language-server-macOS-1.2.0.tar.gz
+              dlHash: a310d8a3e9c5c4218210f750682c74a0f82ad0f59995adde0dbe775115b1e357
+          Windows:
+            unknown_versioning:
+              dlUri: https://github.com/haskell/haskell-language-server/releases/download/1.2.0/haskell-language-server-Windows-1.2.0.tar.gz
+              dlHash: 961c6ff12c9a9c7a4609f239c5ac70d7d16753cdb8c10348a6a51feeaa0b6aea
+          Linux_Alpine:
+            unknown_versioning: *hls-64
   Stack:
     2.5.1:
       viTags:

ghcup.cabal

@@ -1,6 +1,6 @@
 cabal-version:   3.0
 name:            ghcup
-version:         0.1.15.1
+version:         0.1.15.2
 license:         LGPL-3.0-only
 license-file:    LICENSE
 copyright:       Julian Ospald 2020
@@ -43,9 +43,7 @@ flag internal-downloader
   manual:      True
 
 flag tar
-  description:
+  description: Use tar-bytestring instead of libarchive.
-    Use tar-bytestring instead of libarchive.
-
   default:     False
   manual:      True
 
@@ -142,7 +140,7 @@ library
     , uri-bytestring        ^>=0.3.2.2
     , utf8-string           ^>=1.0
     , vector                ^>=0.12
-    , versions              ^>=4.0.1
+    , versions              >=4.0.1      && <5.1
     , word8                 ^>=0.1.3
     , yaml                  ^>=0.11.4.0
     , zip                   ^>=1.7.1
@@ -226,7 +224,7 @@ executable ghcup
     , text                  ^>=1.2.4.0
     , uri-bytestring        ^>=0.3.2.2
     , utf8-string           ^>=1.0
-    , versions              ^>=4.0.1
+    , versions              >=4.0.1    && <5.1
 
   if flag(internal-downloader)
     cpp-options: -DINTERNAL_DOWNLOADER
@@ -294,7 +292,7 @@ executable ghcup-gen
     , text                  ^>=1.2.4.0
     , transformers          ^>=0.5
     , uri-bytestring        ^>=0.3.2.2
-    , versions              ^>=4.0.1
+    , versions              >=4.0.1    && <5.1
     , yaml                  ^>=0.11.4.0
 
   if flag(tar)
@@ -338,4 +336,4 @@ test-suite ghcup-test
     , quickcheck-arbitrary-adt  ^>=0.3.1.0
     , text                      ^>=1.2.4.0
     , uri-bytestring            ^>=0.3.2.2
-    , versions                  ^>=4.0.1
+    , versions                  >=4.0.1   && <5.1

lib/GHCup.hs

@@ -42,6 +42,7 @@ import           GHCup.Version
 import           Codec.Archive                  ( ArchiveResult )
 #endif
 import           Control.Applicative
+import           Control.Exception              ( evaluate )
 import           Control.Exception.Safe
 import           Control.Monad
 #if !MIN_VERSION_base(4,13,0)
@@ -1282,6 +1283,187 @@ rmStackVer ver = do
       Nothing        -> liftIO $ rmLink (binDir </> "stack" <> exeExt)
 
 
+-- assuming the current scheme of having just 1 ghcup bin, no version info is required.
+rmGhcup :: ( MonadReader AppState m
+           , MonadIO m
+           , MonadCatch m
+           , MonadLogger m
+           )
+        => m ()
+
+rmGhcup = do
+  AppState {dirs = Dirs {binDir}} <- ask
+  let ghcupFilename = "ghcup" <> exeExt
+  let ghcupFilepath = binDir </> ghcupFilename
+
+  currentRunningExecPath <- liftIO getExecutablePath
+
+  -- if paths do no exist, warn user, and continue to compare them, as is,
+  -- which should eventually fail and result in a non-standard install warning
+
+  p1 <- handleIO' doesNotExistErrorType
+                  (handlePathNotPresent currentRunningExecPath)
+                  (liftIO $ canonicalizePath currentRunningExecPath)
+
+  p2 <- handleIO' doesNotExistErrorType
+                  (handlePathNotPresent ghcupFilepath)
+                  (liftIO $ canonicalizePath ghcupFilepath)
+
+  let areEqualPaths = equalFilePath p1 p2
+
+  unless areEqualPaths $ $logWarn $ nonStandardInstallLocationMsg currentRunningExecPath
+
+#if defined(IS_WINDOWS)
+  -- since it doesn't seem possible to delete a running exec in windows
+  -- we move it to temp dir, to be deleted at next reboot
+  tempDir <- liftIO $ getTemporaryDirectory
+  let tempFilepath = tempDir </> ghcupFilename
+  hideError UnsupportedOperation $
+            liftIO $ hideError NoSuchThing $
+            Win32.moveFileEx ghcupFilepath (Just tempFilepath) Win32.mOVEFILE_REPLACE_EXISTING
+#else
+  -- delete it.
+  hideError doesNotExistErrorType $ liftIO $ rmFile ghcupFilepath
+#endif
+
+  where
+    handlePathNotPresent fp _err = do
+      $logDebug $ "Error: The path does not exist, " <> T.pack fp
+      pure fp
+
+    nonStandardInstallLocationMsg path = T.pack $
+      "current ghcup is invoked from a non-standard location: \n"
+      <> path <>
+      "\n you may have to uninstall it manually."
+
+rmTool :: ( MonadReader AppState m
+           , MonadLogger m
+           , MonadFail m
+           , MonadMask m
+           , MonadUnliftIO m)
+           => ListResult
+           -> Excepts '[NotInstalled ] m ()
+
+rmTool ListResult {lVer, lTool, lCross} = do
+  case lTool of
+    GHC ->
+      let ghcTargetVersion = GHCTargetVersion lCross lVer
+      in rmGHCVer ghcTargetVersion
+    HLS -> rmHLSVer lVer
+    Cabal -> rmCabalVer lVer
+    Stack -> rmStackVer lVer
+    GHCup -> lift rmGhcup
+
+
+rmGhcupDirs :: ( MonadReader AppState m
+               , MonadIO m
+               , MonadLogger m
+               , MonadCatch m
+               , MonadMask m )
+            => m [FilePath]
+rmGhcupDirs = do
+  Dirs
+    { baseDir
+    , binDir
+    , logsDir
+    , cacheDir
+    } <- asks dirs
+
+  let envFilePath = baseDir </> "env"
+
+  confFilePath <- getConfigFilePath
+
+  rmEnvFile  envFilePath
+  rmConfFile confFilePath
+  rmDir cacheDir
+  rmDir logsDir
+  rmBinDir   binDir
+#if defined(IS_WINDOWS)
+  rmDir (baseDir </> "msys64")
+#endif
+
+  liftIO $ removeEmptyDirsRecursive baseDir
+
+  -- report files in baseDir that are left-over after
+  -- the standard location deletions above
+  hideErrorDef [doesNotExistErrorType] [] $ reportRemainingFiles baseDir
+
+  where
+
+    rmEnvFile :: (MonadCatch m, MonadLogger m, MonadIO m) => FilePath -> m ()
+    rmEnvFile enFilePath = do
+      $logInfo "Removing Ghcup Environment File"
+      hideError doesNotExistErrorType $ liftIO $ deleteFile enFilePath
+
+    rmConfFile :: (MonadCatch m, MonadLogger m, MonadIO m) => FilePath -> m ()
+    rmConfFile confFilePath = do
+      $logInfo "removing Ghcup Config File"
+      hideError doesNotExistErrorType $ liftIO $ deleteFile confFilePath
+
+    rmDir :: (MonadLogger m, MonadIO m, MonadCatch m) => FilePath -> m ()
+    rmDir dir = do
+      $logInfo [i|removing #{dir}|]
+      contents <- hideErrorDef [doesNotExistErrorType] []
+        $ liftIO
+        (getDirectoryContentsRecursive dir >>= evaluate)
+      forM_ contents (liftIO . deleteFile . (dir </>))
+
+    rmBinDir :: (MonadCatch m, MonadIO m) => FilePath -> m ()
+    rmBinDir binDir = do
+#if !defined(IS_WINDOWS)
+      isXDGStyle <- liftIO useXDG
+      if not isXDGStyle
+        then removeDirIfEmptyOrIsSymlink binDir
+        else pure ()
+#else
+      removeDirIfEmptyOrIsSymlink binDir
+#endif
+
+    reportRemainingFiles :: MonadIO m => FilePath -> m [FilePath]
+    reportRemainingFiles dir = do
+      remainingFiles <- liftIO $ getDirectoryContentsRecursive dir
+      let normalizedFilePaths = fmap normalise remainingFiles
+      let sortedByDepthRemainingFiles = sortBy (flip compareFn) normalizedFilePaths
+      let remainingFilesAbsolute = fmap (dir </>) sortedByDepthRemainingFiles
+
+      pure remainingFilesAbsolute
+
+      where
+        calcDepth :: FilePath -> Int
+        calcDepth = length . filter isPathSeparator
+
+        compareFn :: FilePath -> FilePath -> Ordering
+        compareFn fp1 fp2 = compare (calcDepth fp1) (calcDepth fp2)
+
+    removeEmptyDirsRecursive :: FilePath -> IO ()
+    removeEmptyDirsRecursive fp = do
+      cs <- listDirectory fp >>= filterM doesDirectoryExist . fmap (fp </>)
+      forM_ cs removeEmptyDirsRecursive
+      hideError InappropriateType $ removeDirIfEmptyOrIsSymlink fp
+        
+
+    -- we expect only files inside cache/log dir
+    -- we report remaining files/dirs later,
+    -- hence the force/quiet mode in these delete functions below.
+
+    deleteFile :: FilePath -> IO ()
+    deleteFile filepath = do
+      hideError InappropriateType $ rmFile filepath
+
+    removeDirIfEmptyOrIsSymlink :: (MonadCatch m, MonadIO m) => FilePath -> m ()
+    removeDirIfEmptyOrIsSymlink filepath =
+      hideError UnsatisfiedConstraints $
+      handleIO' InappropriateType
+            (handleIfSym filepath)
+            (liftIO $ removeDirectory filepath)
+      where
+        handleIfSym fp e = do
+          isSym <- liftIO $ pathIsSymbolicLink fp
+          if isSym
+          then liftIO $ deleteFile fp
+          else liftIO $ ioError e
+
+
 
     ------------------
     --[ Debug info ]--
@@ -1623,14 +1805,14 @@ upgradeGHCup :: ( MonadMask m
                    ]
                   m
                   Version
-upgradeGHCup mtarget force = do
+upgradeGHCup mtarget force' = do
   AppState { dirs = Dirs {..}
            , pfreq
            , ghcupInfo = GHCupInfo { _ghcupDownloads = dls }
            , settings } <- lift ask
   lift $ $(logInfo) [i|Upgrading GHCup...|]
   let latestVer = fromJust $ fst <$> getLatest dls GHCup
-  when (not force && (latestVer <= pvpToVersion ghcUpVer)) $ throwE NoUpdate
+  when (not force' && (latestVer <= pvpToVersion ghcUpVer)) $ throwE NoUpdate
   dli   <- lE $ getDownloadInfo GHCup latestVer pfreq dls
   tmp   <- lift withGHCupTmpDir
   let fn = "ghcup" <> exeExt

lib/GHCup/Utils/Dirs.hs

@@ -26,6 +26,10 @@ module GHCup.Utils.Dirs
   , parseGHCupGHCDir
   , relativeSymlink
   , withGHCupTmpDir
+  , getConfigFilePath
+#if !defined(IS_WINDOWS)
+  , useXDG
+#endif
   )
 where
 
@@ -201,13 +205,16 @@ getDirs = do
     --[ GHCup files ]--
     -------------------
 
+getConfigFilePath :: (MonadIO m) => m FilePath
+getConfigFilePath = do
+  confDir <- liftIO ghcupConfigDir
+  pure $ confDir </> "config.yaml"
 
 ghcupConfigFile :: (MonadIO m)
                 => Excepts '[JSONError] m UserSettings
 ghcupConfigFile = do
-  confDir <- liftIO ghcupConfigDir
+  filepath <- getConfigFilePath
-  let file = confDir </> "config.yaml"
+  contents <- liftIO $ handleIO' NoSuchThing (\_ -> pure Nothing) $ Just <$> BS.readFile filepath
-  contents <- liftIO $ handleIO' NoSuchThing (\_ -> pure Nothing) $ Just <$> BS.readFile file
   case contents of
       Nothing -> pure defaultUserSettings
       Just contents' -> lE' JSONDecodeError . first show . Y.decodeEither' $ contents'

lib/GHCup/Utils/Prelude.hs

@@ -190,14 +190,14 @@ hideError :: (MonadIO m, MonadCatch m) => IOErrorType -> m () -> m ()
 hideError err = handleIO (\e -> if err == ioeGetErrorType e then pure () else liftIO . ioError $ e)
 
 
-hideErrorDef :: [IOErrorType] -> a -> IO a -> IO a
+hideErrorDef :: (MonadIO m, MonadCatch m) => [IOErrorType] -> a -> m a -> m a
 hideErrorDef errs def =
-  handleIO (\e -> if ioeGetErrorType e `elem` errs then pure def else ioError e)
+  handleIO (\e -> if ioeGetErrorType e `elem` errs then pure def else liftIO $ ioError e)
 
 
-hideErrorDefM :: [IOErrorType] -> IO a -> IO a -> IO a
+hideErrorDefM :: (MonadIO m, MonadCatch m) => [IOErrorType] -> m a -> m a -> m a
 hideErrorDefM errs def =
-  handleIO (\e -> if ioeGetErrorType e `elem` errs then def else ioError e)
+  handleIO (\e -> if ioeGetErrorType e `elem` errs then def else liftIO $ ioError e)
 
 
 -- TODO: does this work?
@@ -334,6 +334,7 @@ copyDirectoryRecursive srcDir destDir = do
                    in doCopy src dest
                 | (srcBase, srcFile) <- srcFiles ]
 
+
 -- | List all the files in a directory and all subdirectories.
 --
 -- The order places files in sub-directories after all the files in their

www/ghcup.css

@@ -132,13 +132,17 @@ hr {
     margin-bottom: 2em;
 }
 
-#platform-instructions-linux > div > pre,
+span.code {
-#platform-instructions-mac > div > pre,
+	font-family: 'Lucida Console', monospace;
-#platform-instructions-freebsd > div > pre,
+}
-#platform-instructions-win32 > div > pre,
+
-#platform-instructions-win64 > div > pre,
+#platform-instructions-linux div > pre,
-#platform-instructions-default > div > div > pre,
+#platform-instructions-mac div > pre,
-#platform-instructions-unknown > div > div > pre {
+#platform-instructions-freebsd div > pre,
+#platform-instructions-win32 div > pre,
+#platform-instructions-win64 div > pre,
+#platform-instructions-default div > div > pre,
+#platform-instructions-unknown div > div > pre {
     background-color: #515151;
     color: white;
     margin-left: auto;

www/index.html

@@ -44,23 +44,40 @@
       <div id="platform-instructions-win32" class="instructions">
         <p>
             To install Haskell,<br/>run the following in a powershell session (as a non-admin user).
-			<div class="command-button"><pre><span class='ghcup-command' id="ghcup-command-powershell">Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; Invoke-WebRequest -UseBasicParsing https://www.haskell.org/ghcup/sh/bootstrap-haskell.ps1 | Invoke-Expression</span></span></pre><button class="tooltip" onclick="copyToClipboardPowershell()"><img src="copy.svg" alt="" /><span class="tooltiptext">Copy to clipboard</span></button></div>
+			<div>
+			<div class="command-button"><pre><span class='ghcup-command' id="ghcup-command-powershell">Set-ExecutionPolicy Bypass -Scope Process -Force;[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072;Invoke-Command -ScriptBlock ([ScriptBlock]::Create((Invoke-WebRequest https://www.haskell.org/ghcup/sh/bootstrap-haskell.ps1 -UseBasicParsing))) -ArgumentList $false</span></span></pre><button class="tooltip" onclick="copyToClipboardPowershell()"><img src="copy.svg" alt="" /><span class="tooltiptext">Copy to clipboard</span></button>
+			</div>
+				<p class="other-help">If you want to run an interactive installation, change <span class='code'>$false</span> to <span class='code'>$true</span> at the end of the script.</p>
+			</div>
 		<p>If you're a Windows Subsystem 2 for Linux user run the following in your terminal, then follow the onscreen instructions to install Haskell.
 		</p>
-		<div class="command-button"><pre><span class='ghcup-command'>curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh</span></pre><button class="tooltip" onclick="copyToClipboard()"><img src="copy.svg" alt="" /><span class="tooltiptext">Copy to clipboard</span></button></div>
+		<div>
+		<div class="command-button"><pre><span class='ghcup-command'>curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh</span></pre><button class="tooltip" onclick="copyToClipboard()"><img src="copy.svg" alt="" /><span class="tooltiptext">Copy to clipboard</span></button>
+		</div>
+		<p class="other-help">WSL1 does not work with ghcup, follow  <a href="https://docs.microsoft.com/en-us/windows/wsl/install-win10">the instructions here</a> to upgrade to WSL2 if needed.</p>
+		</div>
         </p>
-		<p class="other-help">WSL1 does not work with ghcup, follow  <a href="https://docs.microsoft.com/en-us/windows/wsl/install-win10">the instructions here</a> to upgrade to WSL2 if needed.</br>You appear to be running Windows 32-bit. If not, <a class="default-platform-button" href="#">display all supported installers</a>.</p>
+        <hr/>
+		<p class="other-help">You appear to be running Windows 32-bit. If not, <a class="default-platform-button" href="#">display all supported installers</a>.</p>
       </div>
 
       <div id="platform-instructions-win64" class="instructions" style="display: none;">
         <p>
             To install Haskell,<br/>run the following in a powershell session (as a non-admin user).
-			<div class="command-button"><pre><span class='ghcup-command'>Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; Invoke-WebRequest -UseBasicParsing https://www.haskell.org/ghcup/sh/bootstrap-haskell.ps1 | Invoke-Expression</span></span></pre><button class="tooltip" onclick="copyToClipboardPowershell()"><img src="copy.svg" alt="" /><span class="tooltiptext">Copy to clipboard</span></button></div>
+			<div>
+			<div class="command-button"><pre><span class='ghcup-command'>Set-ExecutionPolicy Bypass -Scope Process -Force;[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072;Invoke-Command -ScriptBlock ([ScriptBlock]::Create((Invoke-WebRequest https://www.haskell.org/ghcup/sh/bootstrap-haskell.ps1 -UseBasicParsing))) -ArgumentList $false</span></span></pre><button class="tooltip" onclick="copyToClipboardPowershell()"><img src="copy.svg" alt="" /><span class="tooltiptext">Copy to clipboard</span></button>
+			</div>
+				<p class="other-help">If you want to run an interactive installation, change <span class='code'>$false</span> to <span class='code'>$true</span> at the end of the script.</p>
+			</div>
         </p>
 		<p>If you're a Windows Subsystem 2 for Linux user run the following in your terminal, then follow the onscreen instructions to install Haskell.
 		</p>
-		<div class="command-button"><pre><span class='ghcup-command'>curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh</span></pre><button class="tooltip" onclick="copyToClipboard()"><img src="copy.svg" alt="" /><span class="tooltiptext">Copy to clipboard</span></button></div>
+		<div>
-		<p class="other-help">WSL1 does not work with ghcup, follow  <a href="https://docs.microsoft.com/en-us/windows/wsl/install-win10">the instructions here</a> to upgrade to WSL2 if needed.</br>You appear to be running Windows 64-bit. If not, <a class="default-platform-button" href="#">display all supported installers</a>.</p>
+		<div class="command-button"><pre><span class='ghcup-command'>curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh</span></pre><button class="tooltip" onclick="copyToClipboard()"><img src="copy.svg" alt="" /><span class="tooltiptext">Copy to clipboard</span></button>
+		</div>
+		<p class="other-help">WSL1 does not work with ghcup, follow  <a href="https://docs.microsoft.com/en-us/windows/wsl/install-win10">the instructions here</a> to upgrade to WSL2 if needed.</p>
+		</div>
+		<p class="other-help">You appear to be running Windows 64-bit. If not, <a class="default-platform-button" href="#">display all supported installers</a>.</p>
       </div>
 
       <div id="platform-instructions-unknown" class="instructions" style="display: none;">
@@ -92,7 +109,7 @@
         <div>
           <p>
             If you are running Windows,<br/>run the following in a powershell session (as a non-admin user).
-			<div class="command-button"><pre><span class='ghcup-command'>Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; Invoke-WebRequest -UseBasicParsing https://www.haskell.org/ghcup/sh/bootstrap-haskell.ps1 | Invoke-Expression</span></span></pre><button class="tooltip" onclick="copyToClipboardPowershell()"><img src="copy.svg" alt="" /><span class="tooltiptext">Copy to clipboard</span></button></div>
+			<div class="command-button"><pre><span class='ghcup-command'>Set-ExecutionPolicy Bypass -Scope Process -Force;[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072;Invoke-Command -ScriptBlock ([ScriptBlock]::Create((Invoke-WebRequest https://www.haskell.org/ghcup/sh/bootstrap-haskell.ps1 -UseBasicParsing))) -ArgumentList $false</span></span></pre><button class="tooltip" onclick="copyToClipboardPowershell()"><img src="copy.svg" alt="" /><span class="tooltiptext">Copy to clipboard</span></button></div>
           </p>
         </div>
 
@@ -111,7 +128,7 @@
         <div>
           <p>
             If you are running Windows,<br/>run the following in a powershell session (as a non-admin user).
-			<div class="command-button"><pre><span class='ghcup-command'>Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; Invoke-WebRequest -UseBasicParsing https://www.haskell.org/ghcup/sh/bootstrap-haskell.ps1 | Invoke-Expression</span></span></pre><button class="tooltip" onclick="copyToClipboardPowershell()"><img src="copy.svg" alt="" /><span class="tooltiptext">Copy to clipboard</span></button></div>
+			<div class="command-button"><pre><span class='ghcup-command'>Set-ExecutionPolicy Bypass -Scope Process -Force;[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072;Invoke-Command -ScriptBlock ([ScriptBlock]::Create((Invoke-WebRequest https://www.haskell.org/ghcup/sh/bootstrap-haskell.ps1 -UseBasicParsing))) -ArgumentList $false</span></span></pre><button class="tooltip" onclick="copyToClipboardPowershell()"><img src="copy.svg" alt="" /><span class="tooltiptext">Copy to clipboard</span></button></div>
           </p>
         </div>