Fix opening changelog on windows

We show all tools at the moment anyway.

.github/scripts/test.sh

@@ -30,32 +30,32 @@ sha_sum "$(raw_eghcup --offline whereis ghcup)"
 
 ### Haskell test suite
 
-./ghcup-test${ext}
-./ghcup-test-optparse${ext}
-rm ghcup-test${ext} ghcup-test-optparse${ext}
+./"ghcup-test${ext}"
+./"ghcup-test-optparse${ext}"
+rm "ghcup-test${ext}" "ghcup-test-optparse${ext}"
 
 ### manual cli based testing
 
 eghcup --numeric-version
 
-eghcup install ghc ${GHC_VER}
-eghcup unset ghc ${GHC_VER}
-ls -lah "$(eghcup whereis -d ghc ${GHC_VER})"
-[ "`$(eghcup whereis ghc ${GHC_VER}) --numeric-version`" = "${GHC_VER}" ]
-[ "`eghcup run --ghc ${GHC_VER} -- ghc --numeric-version`" = "${GHC_VER}" ]
-[ "`ghcup run --ghc ${GHC_VER} -- ghc -e 'Control.Monad.join (Control.Monad.fmap System.IO.putStr System.Environment.getExecutablePath)'`" = "`$(ghcup whereis ghc ${GHC_VER}) -e 'Control.Monad.join (Control.Monad.fmap System.IO.putStr System.Environment.getExecutablePath)'`" ]
-eghcup set ghc ${GHC_VER}
-eghcup install cabal ${CABAL_VER}
-[ "`$(eghcup whereis cabal ${CABAL_VER}) --numeric-version`" = "${CABAL_VER}" ]
+eghcup install ghc "${GHC_VER}"
+eghcup unset ghc "${GHC_VER}"
+ls -lah "$(eghcup whereis -d ghc "${GHC_VER}")"
+[ "$($(eghcup whereis ghc "${GHC_VER}") --numeric-version)" = "${GHC_VER}" ]
+[ "$(eghcup run -q --ghc "${GHC_VER}" -- ghc --numeric-version)" = "${GHC_VER}" ]
+[ "$(ghcup run -q --ghc "${GHC_VER}" -- ghc -e 'Control.Monad.join (Control.Monad.fmap System.IO.putStr System.Environment.getExecutablePath)')" = "$($(ghcup whereis ghc "${GHC_VER}") -e 'Control.Monad.join (Control.Monad.fmap System.IO.putStr System.Environment.getExecutablePath)')" ]
+eghcup set ghc "${GHC_VER}"
+eghcup install cabal "${CABAL_VER}"
+[ "$($(eghcup whereis cabal "${CABAL_VER}") --numeric-version)" = "${CABAL_VER}" ]
 eghcup unset cabal
 "$GHCUP_BIN"/cabal --version && exit 1 || echo yes
 
 # make sure no cabal is set when running 'ghcup run' to check that PATH propagages properly
 # https://gitlab.haskell.org/haskell/ghcup-hs/-/issues/375
-[ "`eghcup run --cabal ${CABAL_VER} -- cabal --numeric-version`" = "${CABAL_VER}" ]
-eghcup set cabal ${CABAL_VER}
+[ "$(eghcup run -q --cabal "${CABAL_VER}" -- cabal --numeric-version)" = "${CABAL_VER}" ]
+eghcup set cabal "${CABAL_VER}"
 
-[ "`$(eghcup whereis cabal ${CABAL_VER}) --numeric-version`" = "${CABAL_VER}" ]
+[ "$($(eghcup whereis cabal "${CABAL_VER}") --numeric-version)" = "${CABAL_VER}" ]
 
 if [ "${OS}" != "FreeBSD" ] ; then
 	if [ "${ARCH}" = "64" ] && [ "${DISTRO}" != "Alpine" ] ; then
@@ -85,10 +85,10 @@ eghcup list -t cabal
 
 ghc_ver=$(ghc --numeric-version)
 ghc --version
-ghc-${ghc_ver} --version
+"ghc-${ghc_ver}" --version
 if [ "${OS}" != "Windows" ] ; then
 		ghci --version
-		ghci-${ghc_ver} --version
+		"ghci-${ghc_ver}" --version
 fi
 
 
@@ -132,11 +132,11 @@ else
 	eghcup --offline set 8.10.3
 	eghcup set 8.10.3
 	[ "$(ghc --numeric-version)" = "8.10.3" ]
-	eghcup set ${GHC_VER}
+	eghcup set "${GHC_VER}"
 	[ "$(ghc --numeric-version)" = "${ghc_ver}" ]
 	eghcup unset ghc
     "$GHCUP_BIN"/ghc --numeric-version && exit 1 || echo yes
-	eghcup set ${GHC_VER}
+	eghcup set "${GHC_VER}"
 	eghcup --offline rm 8.10.3
 	[ "$(ghc --numeric-version)" = "${ghc_ver}" ]
 
@@ -169,10 +169,10 @@ fi
 # check that lazy loading works for 'whereis'
 cp "$CI_PROJECT_DIR/data/metadata/ghcup-${JSON_VERSION}.yaml" "$CI_PROJECT_DIR/data/metadata/ghcup-${JSON_VERSION}.yaml.bak"
 echo '**' > "$CI_PROJECT_DIR/data/metadata/ghcup-${JSON_VERSION}.yaml"
-eghcup whereis ghc $(ghc --numeric-version)
+eghcup whereis ghc "$(ghc --numeric-version)"
 mv -f "$CI_PROJECT_DIR/data/metadata/ghcup-${JSON_VERSION}.yaml.bak" "$CI_PROJECT_DIR/data/metadata/ghcup-${JSON_VERSION}.yaml"
 
-eghcup rm $(ghc --numeric-version)
+eghcup rm "$(ghc --numeric-version)"
 
 # https://gitlab.haskell.org/haskell/ghcup-hs/-/issues/116
 if [ "${OS}" = "Linux" ] ; then
@@ -186,7 +186,7 @@ eghcup gc -c
 
 # test etags
 rm -f "${GHCUP_DIR}/cache/ghcup-${JSON_VERSION}.yaml"
-raw_eghcup -s https://www.haskell.org/ghcup/data/ghcup-${JSON_VERSION}.yaml list
+raw_eghcup -s "https://www.haskell.org/ghcup/data/ghcup-${JSON_VERSION}.yaml" list
 # snapshot yaml and etags file
 etag=$(cat "${GHCUP_DIR}/cache/ghcup-${JSON_VERSION}.yaml.etags")
 sha=$(sha_sum "${GHCUP_DIR}/cache/ghcup-${JSON_VERSION}.yaml")

.github/workflows/release.yaml

@@ -322,7 +322,7 @@ jobs:
         with:
           name: testfiles
           path: |
-            ./test/golden/unix/GHCupInfo*json
+            ./test/ghcup-test/golden/unix/GHCupInfo*json
 
   test-arm:
     name: Test ARM
@@ -389,7 +389,7 @@ jobs:
         with:
           name: testfiles
           path: |
-            ./test/golden/unix/GHCupInfo*json
+            ./test/ghcup-test/golden/unix/GHCupInfo*json
 
   test-macwin:
     name: Test Mac/Win
@@ -458,7 +458,7 @@ jobs:
         with:
           name: testfiles
           path: |
-            ./test/golden/windows/GHCupInfo*json
+            ./test/ghcup-test/golden/windows/GHCupInfo*json
 
       - if: failure() && runner.os != 'Windows'
         name: Upload artifact
@@ -466,7 +466,7 @@ jobs:
         with:
           name: testfiles
           path: |
-            ./test/golden/unix/GHCupInfo*json
+            ./test/ghcup-test/golden/unix/GHCupInfo*json
   hls:
     name: hls
     needs: build-linux

.gitmodules

@@ -1,4 +1,4 @@
 [submodule "data/metadata"]
 	path = data/metadata
 	url = https://github.com/haskell/ghcup-metadata.git
-	branch = master
+	branch = develop

CHANGELOG.md

@@ -1,8 +1,20 @@
 # Revision history for ghcup
 
-## 0.1.19.5 -- ????-?-??
+## 0.1.20.0 -- 2023-11-10
 
-* support JS cross compilers wrt [#838](https://github.com/haskell/ghcup-hs/issues/838)
+### New features
+
+* support TUI on windows thanks to the work from vty and brick maintainers (Chris Hackett, Timofey Zakrevskiy, Jonathan Daugherty, ...), wrt [#912](https://github.com/haskell/ghcup-hs/pull/912)
+* support JS and wasm cross compilers wrt [#838](https://github.com/haskell/ghcup-hs/issues/838), thanks to Sylvain Henry and IOG
+* Support stacks installation strategy and metadata wrt [#892](https://github.com/haskell/ghcup-hs/issues/892)
+  - you can now enable stacks installation method via `ghcup config set url-source '["GHCupURL", "StackSetupURL"]'`... for more information, check the [documentation](https://www.haskell.org/ghcup/guide/#using-stacks-setup-info-metadata-to-install-ghc)
+
+### Improvements and bug fixes
+
+* fix segfault in TUI when hitting enter early wrt [#887](https://github.com/haskell/ghcup-hs/issues/887)
+* Improve key handling in TUI, fixes [#875](https://github.com/haskell/ghcup-hs/issues/875)
+* add explicit support for Void Linux and Rocky Linux (this requires a metadata version bump to `ghcup-0.0.8.yaml`)
+* optparse cli interface now has a test suite thanks to Lei Zhu, wrt [#862](https://github.com/haskell/ghcup-hs/pull/862)
 
 ## 0.1.19.4 -- 2023-7-02
 

app/ghcup/BrickMain.hs

@@ -5,18 +5,19 @@
 {-# LANGUAGE TypeApplications  #-}
 {-# LANGUAGE RankNTypes        #-}
 {-# LANGUAGE ViewPatterns      #-}
+{-# OPTIONS_GHC -Wno-unused-record-wildcards #-}
+{-# OPTIONS_GHC -Wno-unused-matches #-}
 
 module BrickMain where
 
 import           GHCup
 import           GHCup.Download
 import           GHCup.Errors
-import           GHCup.Types.Optics ( getDirs )
+import           GHCup.Types.Optics ( getDirs, getPlatformReq )
 import           GHCup.Types         hiding ( LeanAppState(..) )
 import           GHCup.Utils
 import           GHCup.OptParse.Common (logGHCPostRm)
 import           GHCup.Prelude ( decUTF8Safe )
-import           GHCup.Prelude.File
 import           GHCup.Prelude.Logger
 import           GHCup.Prelude.Process
 import           GHCup.Prompts
@@ -30,6 +31,7 @@ import           Brick.Widgets.List             ( listSelectedFocusedAttr
                                                 , listAttr
                                                 )
 import           Codec.Archive
+import           Control.Applicative
 import           Control.Exception.Safe
 #if !MIN_VERSION_base(4,13,0)
 import           Control.Monad.Fail             ( MonadFail )
@@ -45,12 +47,12 @@ 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
 import           System.Exit
 import           System.IO.Unsafe
+import           System.Process                 ( system )
 import           Text.PrettyPrint.HughesPJClass ( prettyShow )
 import           URI.ByteString
 
@@ -60,11 +62,33 @@ import qualified Data.Text.Lazy                as L
 import qualified Graphics.Vty                  as Vty
 import qualified Data.Vector                   as V
 import System.Environment (getExecutablePath)
+#if !IS_WINDOWS
+import           GHCup.Prelude.File
+import           System.FilePath
 import qualified System.Posix.Process          as SPP
+#endif
 
 
-hiddenTools :: [Tool]
-hiddenTools = []
+installedSign :: String
+#if IS_WINDOWS
+installedSign = "I "
+#else
+installedSign = "✓ "
+#endif
+
+setSign :: String
+#if IS_WINDOWS
+setSign = "IS"
+#else
+setSign = "✔✔"
+#endif
+
+notInstalledSign :: String
+#if IS_WINDOWS
+notInstalledSign = "X "
+#else
+notInstalledSign = "✗ "
+#endif
 
 
 data BrickData = BrickData
@@ -74,7 +98,6 @@ data BrickData = BrickData
 
 data BrickSettings = BrickSettings
   { showAllVersions    :: Bool
-  , showAllTools       :: Bool
   }
   deriving Show
 
@@ -94,7 +117,7 @@ data BrickState = BrickState
 
 
 keyHandlers :: KeyBindings
-            -> [ ( Vty.Key
+            -> [ ( KeyCombination
                  , BrickSettings -> String
                  , BrickState -> EventM String BrickState ()
                  )
@@ -108,19 +131,14 @@ keyHandlers KeyBindings {..} =
   , ( bShowAllVersions
     , \BrickSettings {..} ->
        if showAllVersions then "Don't show all versions" else "Show all versions"
-    , hideShowHandler (not . showAllVersions) showAllTools
-    )
-  , ( bShowAllTools
-    , \BrickSettings {..} ->
-       if showAllTools then "Don't show all tools" else "Show all tools"
-    , hideShowHandler showAllVersions (not . showAllTools)
+    , hideShowHandler (not . showAllVersions)
     )
   , (bUp, const "Up", \BrickState {..} -> put BrickState{ appState = moveCursor 1 appState Up, .. })
   , (bDown, const "Down", \BrickState {..} -> put BrickState{ appState = moveCursor 1 appState Down, .. })
   ]
  where
-  hideShowHandler f p BrickState{..} =
-    let newAppSettings   = appSettings { showAllVersions = f appSettings , showAllTools = p appSettings }
+  hideShowHandler f BrickState{..} =
+    let newAppSettings   = appSettings { showAllVersions = f appSettings }
         newInternalState = constructList appData newAppSettings (Just appState)
     in  put (BrickState appData newAppSettings newInternalState appKeys)
 
@@ -131,6 +149,9 @@ showKey Vty.KUp = "↑"
 showKey Vty.KDown = "↓"
 showKey key = tail (show key)
 
+showMod :: Vty.Modifier -> String
+showMod = tail . show
+
 
 ui :: AttrMap -> BrickState -> Widget String
 ui dimAttrs BrickState{ appSettings = as@BrickSettings{}, ..}
@@ -147,7 +168,7 @@ ui dimAttrs BrickState{ appSettings = as@BrickSettings{}, ..}
       . txtWrap
       . T.pack
       . foldr1 (\x y -> x <> "  " <> y)
-      . fmap (\(key, s, _) -> showKey key <> ":" <> s as)
+      . fmap (\(KeyCombination key mods, s, _) -> intercalate "+" (showKey key : (showMod <$> mods)) <> ":" <> s as)
       $ keyHandlers appKeys
   header =
     minHSize 2 emptyWidget
@@ -161,9 +182,9 @@ ui dimAttrs BrickState{ appSettings = as@BrickSettings{}, ..}
     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 "✓ ")
-          | otherwise  -> (withAttr (attrName "not-installed") $ str "✗ ")
+          | lSet       -> (withAttr (attrName "set") $ str setSign)
+          | lInstalled -> (withAttr (attrName "installed") $ str installedSign)
+          | otherwise  -> (withAttr (attrName "not-installed") $ str notInstalledSign)
         ver = case lCross of
           Nothing -> T.unpack . prettyVer $ lVer
           Just c  -> T.unpack (c <> "-" <> prettyVer lVer)
@@ -321,12 +342,12 @@ eventHandler st@BrickState{..} ev = do
     (MouseDown _ Vty.BScrollDown _ _) ->
       put (BrickState { appState = moveCursor 1 appState Down, .. })
     (VtyEvent (Vty.EvResize _ _)) -> put st
-    (VtyEvent (Vty.EvKey Vty.KUp _)) ->
+    (VtyEvent (Vty.EvKey Vty.KUp [])) ->
       put BrickState{ appState = moveCursor 1 appState Up, .. }
-    (VtyEvent (Vty.EvKey Vty.KDown _)) ->
+    (VtyEvent (Vty.EvKey Vty.KDown [])) ->
       put BrickState{ appState = moveCursor 1 appState Down, .. }
-    (VtyEvent (Vty.EvKey key _)) ->
-      case find (\(key', _, _) -> key' == key) (keyHandlers kb) of
+    (VtyEvent (Vty.EvKey key mods)) ->
+      case find (\(keyCombo, _, _) -> keyCombo == KeyCombination key mods) (keyHandlers kb) of
         Nothing -> put st
         Just (_, _, handler) -> handler st
     _ -> put st
@@ -382,8 +403,7 @@ constructList :: BrickData
               -> Maybe BrickInternalState
               -> BrickInternalState
 constructList appD appSettings =
-  replaceLR (filterVisible (showAllVersions appSettings)
-                           (showAllTools appSettings))
+  replaceLR (filterVisible (showAllVersions appSettings))
             (lr appD)
 
 listSelectedElement' :: BrickInternalState -> Maybe (Int, ListResult)
@@ -414,25 +434,18 @@ replaceLR filterF lr s =
     lTool e1 == lTool e2 && lVer e1 == lVer e2 && lCross e1 == lCross e2
 
 
-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
-                    , Nightly `notElem` lTag e = True
-                    | v
-                    , Nightly `notElem` lTag e
-                    , t = True
-                    | otherwise = (Old `notElem` lTag e)       &&
-                                  (Nightly `notElem` lTag e)   &&
-                                  (lTool e `notElem` hiddenTools)
+filterVisible :: Bool -> ListResult -> Bool
+filterVisible v e | lInstalled e = True
+                  | v
+                  , Nightly `notElem` lTag e = True
+                  | not v
+                  , Old `notElem` lTag e
+                  , Nightly `notElem` lTag e = True
+                  | otherwise = (Old `notElem` lTag e)       &&
+                                  (Nightly `notElem` lTag e)
 
 
-install' :: (MonadReader AppState m, MonadIO m, MonadThrow m, MonadFail m, MonadMask m, MonadUnliftIO m)
+install' :: (MonadReader AppState m, MonadIO m, MonadThrow m, MonadFail m, MonadMask m, MonadUnliftIO m, Alternative m)
          => BrickState
          -> (Int, ListResult)
          -> m (Either String ())
@@ -463,6 +476,11 @@ install' _ (_, ListResult {..}) = do
               , ToolShadowed
               , UninstallFailed
               , MergeFileTreeError
+              , NoCompatiblePlatform
+              , GHCup.Errors.ParseError
+              , UnsupportedSetupCombo
+              , DistroNotFound
+              , NoCompatibleArch
               ]
 
   run (do
@@ -491,12 +509,15 @@ install' _ (_, ListResult {..}) = do
             forM_ (_viPostInstall =<< vi) $ \msg -> logInfo msg
             case lTool of
               GHCup -> do
+#if !IS_WINDOWS
                 up <- liftIO $ fmap (either (const Nothing) Just)
                   $ try @_ @SomeException $ canonicalizePath (binDir </> "ghcup" <.> exeExt)
                 when ((normalise <$> up) == Just (normalise ce)) $
                   -- TODO: track cli arguments of previous invocation
                   liftIO $ SPP.executeFile ce False ["tui"] Nothing
+#else
                 logInfo "Please restart 'ghcup' for the changes to take effect"
+#endif
               _ -> pure ()
             pure $ Right ()
           VRight (vi, _, _) -> do
@@ -509,7 +530,7 @@ install' _ (_, ListResult {..}) = do
             <> "Also check the logs in ~/.ghcup/logs"
 
 
-set' :: (MonadReader AppState m, MonadIO m, MonadThrow m, MonadFail m, MonadMask m, MonadUnliftIO m)
+set' :: (MonadReader AppState m, MonadIO m, MonadThrow m, MonadFail m, MonadMask m, MonadUnliftIO m, Alternative m)
      => BrickState
      -> (Int, ListResult)
      -> m (Either String ())
@@ -518,7 +539,35 @@ set' bs input@(_, ListResult {..}) = do
 
   let run =
         flip runReaderT settings
-          . runE @'[FileDoesNotExistError , NotInstalled , TagNotFound]
+          . runResourceT
+          . runE
+            @'[ AlreadyInstalled
+              , ArchiveResult
+              , UnknownArchive
+              , FileDoesNotExistError
+              , CopyError
+              , NoDownload
+              , NotInstalled
+              , BuildFailed
+              , TagNotFound
+              , DigestError
+              , ContentLengthError
+              , GPGError
+              , DownloadFailed
+              , DirNotEmpty
+              , NoUpdate
+              , TarDirDoesNotExist
+              , FileAlreadyExistsError
+              , ProcessError
+              , ToolShadowed
+              , UninstallFailed
+              , MergeFileTreeError
+              , NoCompatiblePlatform
+              , GHCup.Errors.ParseError
+              , UnsupportedSetupCombo
+              , DistroNotFound
+              , NoCompatibleArch
+              ]
 
   run (do
       case lTool of
@@ -526,7 +575,12 @@ set' bs input@(_, ListResult {..}) = do
         Cabal -> liftE $ setCabal lVer $> ()
         HLS   -> liftE $ setHLS lVer SetHLSOnly Nothing $> ()
         Stack -> liftE $ setStack lVer $> ()
-        GHCup -> pure ()
+        GHCup -> do
+          promptAnswer <- getUserPromptResponse "Switching GHCup versions is not supported.\nDo you want to install the latest version? [Y/N]: "
+          case promptAnswer of
+                PromptYes -> do
+                  void $ liftE $ upgradeGHCup Nothing False False
+                PromptNo -> pure ()
     )
     >>= \case
           VRight _ -> pure $ Right ()
@@ -591,12 +645,18 @@ changelog' _ (_, ListResult {..}) = do
     Nothing -> pure $ Left $
       "Could not find ChangeLog for " <> prettyShow lTool <> ", version " <> T.unpack (prettyVer lVer)
     Just uri -> do
-      let cmd = case _rPlatform pfreq of
-            Darwin  -> "open"
-            Linux _ -> "xdg-open"
-            FreeBSD -> "xdg-open"
-            Windows -> "start"
-      exec cmd [T.unpack $ decUTF8Safe $ serializeURIRef' uri] Nothing Nothing >>= \case
+      case _rPlatform pfreq of
+            Darwin  -> exec "open" [T.unpack $ decUTF8Safe $ serializeURIRef' uri] Nothing Nothing
+            Linux _ -> exec "xdg-open" [T.unpack $ decUTF8Safe $ serializeURIRef' uri] Nothing Nothing
+            FreeBSD -> exec "xdg-open" [T.unpack $ decUTF8Safe $ serializeURIRef' uri] Nothing Nothing
+            Windows -> do
+              let args = "start \"\" " ++ (T.unpack $ decUTF8Safe $ serializeURIRef' uri)
+              c <- liftIO $ system $ args
+              case c of
+                 (ExitFailure xi) -> pure $ Left $ NonZeroExit xi "cmd.exe" [args]
+                 ExitSuccess -> pure $ Right ()
+
+       >>= \case
         Right _ -> pure $ Right ()
         Left  e -> pure $ Left $ prettyHFError e
 
@@ -613,7 +673,7 @@ settings' = unsafePerformIO $ do
   newIORef $ AppState defaultSettings
                       dirs
                       defaultKeyBindings
-                      (GHCupInfo mempty mempty mempty)
+                      (GHCupInfo mempty mempty Nothing)
                       (PlatformRequest A_64 Darwin Nothing)
                       loggerConfig
 
@@ -642,7 +702,7 @@ brickMain s = do
 
 
 defaultAppSettings :: BrickSettings
-defaultAppSettings = BrickSettings { showAllVersions = False, showAllTools = False }
+defaultAppSettings = BrickSettings { showAllVersions = False }
 
 
 getGHCupInfo :: IO (Either String GHCupInfo)
@@ -651,8 +711,10 @@ getGHCupInfo = do
 
   r <-
     flip runReaderT settings
-    . runE @'[DigestError, ContentLengthError, GPGError, JSONError , DownloadFailed , FileDoesNotExistError]
-    $ liftE getDownloadsF
+    . runE @'[DigestError, ContentLengthError, GPGError, JSONError , DownloadFailed , FileDoesNotExistError, StackPlatformDetectError]
+    $ do
+      pfreq <- lift getPlatformReq
+      liftE $ getDownloadsF pfreq
 
   case r of
     VRight a -> pure $ Right a

app/ghcup/Main.hs

@@ -42,7 +42,6 @@ import           Data.Aeson.Encode.Pretty       ( encodePretty )
 import           Data.Either
 import           Data.Functor
 import           Data.Maybe
-import           Data.Versions
 import           GHC.IO.Encoding
 import           Haskus.Utils.Variant.Excepts
 import           Language.Haskell.TH
@@ -85,7 +84,7 @@ toSettings options = do
          keepDirs    = fromMaybe (fromMaybe (Types.keepDirs defaultSettings) uKeepDirs) optKeepDirs
          downloader  = fromMaybe (fromMaybe defaultDownloader uDownloader) optsDownloader
          keyBindings = maybe defaultKeyBindings mergeKeys uKeyBindings
-         urlSource   = maybe (fromMaybe (Types.urlSource defaultSettings) uUrlSource) (OwnSource . (:[]) . Right) optUrlSource
+         urlSource   = fromMaybe (fromMaybe (Types.urlSource defaultSettings) uUrlSource) optUrlSource
          noNetwork   = fromMaybe (fromMaybe (Types.noNetwork defaultSettings) uNoNetwork) optNoNetwork
          gpgSetting  = fromMaybe (fromMaybe (Types.gpgSetting defaultSettings) uGPGSetting) optGpg
          platformOverride = optPlatform <|> (uPlatformOverride <|> Types.platformOverride defaultSettings)
@@ -108,7 +107,6 @@ toSettings options = do
          , bSet = fromMaybe bSet kSet
          , bChangelog = fromMaybe bChangelog kChangelog
          , bShowAllVersions = fromMaybe bShowAllVersions kShowAll
-         , bShowAllTools = fromMaybe bShowAllTools kShowAllTools
          }
 
 
@@ -211,10 +209,9 @@ Report bugs at <https://github.com/haskell/ghcup-hs/issues>|]
                                             exitWith (ExitFailure 2)
 
                 ghcupInfo <-
-                  ( flip runReaderT leanAppstate
-                    . runE @'[DigestError, ContentLengthError, GPGError, JSONError , DownloadFailed, FileDoesNotExistError]
-                    $ liftE getDownloadsF
-                    )
+                  ( flip runReaderT leanAppstate . runE @'[ContentLengthError, DigestError, DistroNotFound, DownloadFailed, FileDoesNotExistError, GPGError, JSONError, NoCompatibleArch, NoCompatiblePlatform, NoDownload, GHCup.Errors.ParseError, ProcessError, UnsupportedSetupCombo, StackPlatformDetectError] $ do
+                     liftE $ getDownloadsF pfreq
+                  )
                     >>= \case
                           VRight r -> pure r
                           VLeft  e -> do
@@ -263,7 +260,7 @@ Report bugs at <https://github.com/haskell/ghcup-hs/issues>|]
                          Just _ -> pure ()
 
                 -- TODO: always run for windows
-                siletRunLogger (flip runReaderT s' $ runE ensureGlobalTools) >>= \case
+                siletRunLogger (flip runReaderT s' $ runE ensureShimGen) >>= \case
                   VRight _ -> pure ()
                   VLeft e -> do
                     runLogger
@@ -341,9 +338,9 @@ Report bugs at <https://github.com/haskell/ghcup-hs/issues>|]
                           ] m Bool
   alreadyInstalling (Install (Right InstallOptions{..}))                 (GHC, ver)   = cmp' GHC instVer ver
   alreadyInstalling (Install (Left (InstallGHC InstallOptions{..})))     (GHC, ver)   = cmp' GHC instVer ver
-  alreadyInstalling (Install (Left (InstallCabal InstallOptions{..})))   (Cabal, ver) = cmp' Cabal instVer ver
-  alreadyInstalling (Install (Left (InstallHLS InstallOptions{..})))     (HLS, ver)   = cmp' HLS instVer ver
-  alreadyInstalling (Install (Left (InstallStack InstallOptions{..})))   (Stack, ver) = cmp' Stack instVer ver
+  alreadyInstalling (Install (Left (InstallCabal InstallOptions{..})))   (Cabal, ver)    = cmp' Cabal instVer ver
+  alreadyInstalling (Install (Left (InstallHLS InstallOptions{..})))     (HLS, ver)      = cmp' HLS instVer ver
+  alreadyInstalling (Install (Left (InstallStack InstallOptions{..})))   (Stack, ver)    = cmp' Stack instVer ver
   alreadyInstalling (Compile (CompileGHC GHCCompileOptions{ ovewrwiteVer = Just over }))
     (GHC, ver)   = cmp' GHC (Just $ GHCVersion (mkTVer over)) ver
   alreadyInstalling (Compile (CompileGHC GHCCompileOptions{ targetGhc = GHC.SourceDist tver }))
@@ -378,3 +375,4 @@ Report bugs at <https://github.com/haskell/ghcup-hs/issues>|]
   cmp' tool instVer ver = do
     (v, _) <- liftE $ fromVersion instVer tool
     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
 
@@ -24,4 +29,4 @@ package streamly
   flags: +use-unliftio
 
 package *
-  test-show-details: direct
+  test-show-details: direct

cabal.project.release

@@ -4,30 +4,26 @@ optional-packages: ./vendored/*/*.cabal
 
 optimization: 2
 
+package ghcup
+  flags: +tui
+
 if os(linux)
-  package ghcup
-    flags: +tui
   if arch(x86_64) || arch(i386)
     package *
       ghc-options: -split-sections -optl-static
 elif os(darwin)
   constraints: zlib +bundled-c-zlib,
                lzma +static
-  package ghcup
-    flags: +tui
 elif os(mingw32)
   constraints: zlib +bundled-c-zlib,
                lzma +static,
-               text -simdutf
-  package ghcup
-    flags: -tui
+               text -simdutf,
+			   vty-windows >=0.1.0.3
 elif os(freebsd)
   constraints: zlib +bundled-c-zlib,
                zip +disable-zstd
   package *
     ghc-options: -split-sections -pgmc clang++14
-  package ghcup
-    flags: +tui
 
 constraints: http-io-streams -brotli,
              any.aeson >= 2.0.1.0,

data/config.yaml

@@ -16,6 +16,11 @@ gpg-setting: GPGNone # GPGStrict | GPGLax | GPGNone
 # TUI key bindings,
 # see https://hackage.haskell.org/package/vty-5.31/docs/Graphics-Vty-Input-Events.html#t:Key
 # for possible values.
+# It's also possible to define key+modifier, e.g.:
+#   quit:
+#     Key:
+#       KChar: c
+#     Mods: [MCtrl]
 key-bindings:
   up:
     KUp: []
@@ -46,41 +51,45 @@ meta-cache: 300 # in seconds
 #   2. Strict: fail hard
 meta-mode: Lax # Strict | Lax
 
-# Where to get GHC/cabal/hls download info/versions from. For more detailed explanation
-# check the 'URLSource' type in the code.
+# Where to get GHC/cabal/hls download info/versions from. This is a list that performs
+# union over tool versions, preferring the later entries.
 url-source:
   ## Use the internal download uri, this is the default
-  GHCupURL: []
+  - GHCupURL
 
-  ## Example 1: Read download info from this location instead
-  ## Accepts file/http/https scheme
-  ## Can also be an array of URLs or an array of 'Either GHCupInfo URL', in
-  ## which case they are merged right-biased (overwriting duplicate versions).
-  # OwnSource: "file:///home/jule/git/ghcup-hs/ghcup-0.0.3.yaml"
+  ## Prefer stack supplied metadata (will still use GHCup metadata for versions not existing in stack metadata)
+  # - StackSetupURL
 
-  ## Example 2: Add custom tarballs to the default downloads, overwriting duplicate versions.
-  ## Can also be an array of 'Either GHCupInfo URL', also see Example 3.
-  # AddSource:
-    # Left:
-      # globalTools: {}
-      # toolRequirements: {}
-      # ghcupDownloads:
-        # GHC:
-          # 9.10.2:
-            # viTags: []
-            # viArch:
-              # A_64:
-                # Linux_UnknownLinux:
-                  # unknown_versioning:
-                    # dlUri: https://downloads.haskell.org/~ghc/7.10.3/ghc-7.10.3-x86_64-deb8-linux.tar.bz2
-                    # dlSubdir: ghc-7.10.3
-                    # dlHash: 01cfbad8dff1e8b34a5fdca8caeaf843b56e36af919e29cd68870d2588563db5
+  ## Add pre-release channel
+  # - https://raw.githubusercontent.com/haskell/ghcup-metadata/master/ghcup-prereleases-0.0.7.yaml
+  ## Add nightly channel
+  # - https://ghc.gitlab.haskell.org/ghcup-metadata/ghcup-nightlies-0.0.7.yaml
+  ## Add cross compiler channel
+  # - https://raw.githubusercontent.com/haskell/ghcup-metadata/master/ghcup-cross-0.0.8.yaml
 
-  ## Example 3: Add multiple custom download files to the default downloads via right-biased merge (overwriting duplicate
-  ## versions).
-  # AddSource:
-    # - Right: "file:///home/jule/git/ghcup-hs/ghcup-prereleases.yaml"
-    # - Right: "file:///home/jule/git/ghcup-hs/ghcup-custom.yaml"
+  ## Use dwarf bindist for 9.4.7 for ghcup metadata
+  # - ghcup-info:
+  #     ghcupDownloads:
+  #       GHC:
+  #         9.4.7:
+  #           viTags: []
+  #           viArch:
+  #             A_64:
+  #               Linux_UnknownLinux:
+  #                 unknown_versioning:
+  #                   dlUri: https://downloads.haskell.org/ghc/9.4.7/ghc-9.4.7-x86_64-deb10-linux-dwarf.tar.xz
+  #                   dlSubdir:
+  #                     RegexDir: "ghc-.*"
+  #                   dlHash: b261b3438ba455e3cf757f9c8dc3a06fdc061ea8ec287a65b7809e25fe18bad4
+
+  ## for stack metadata and the linux64-tinfo6 bindists, use static alpine for 9.8.1
+  # - setup-info:
+  #     ghc:
+  #       linux64-tinfo6:
+  #         9.8.1:
+  #           url: "https://downloads.haskell.org/~ghc/9.8.1/ghc-9.8.1-x86_64-alpine3_12-linux-static.tar.xz"
+  #           content-length: 229037440
+  #           sha256: b48f3d3a508d0c140d1c801e04afc65e80c0d25e7e939a8a41edb387b26b81b3
 
 # This is a way to override platform detection, e.g. when you're running
 # a Ubuntu derivate based on 18.04, you could do:

docs/guide.md

@@ -95,7 +95,7 @@ platform-override:
 
 This is the complete list of env variables that change GHCup behavior:
 
-* `GHCUP_USE_XDG_DIRS`: see [XDG support](#xdg-support) above
+* `GHCUP_USE_XDG_DIRS`: see [XDG support](#xdg-support) below
 * `GHCUP_INSTALL_BASE_PREFIX`: the base of ghcup (default: `$HOME`)
 * `GHCUP_CURL_OPTS`: additional options that can be passed to curl
 * `GHCUP_WGET_OPTS`: additional options that can be passed to wget
@@ -142,50 +142,29 @@ If you experience problems, consider clearing the cache via `ghcup gc --cache`.
 
 ## Metadata
 
-The metadata are the files that describe tool versions, where to download them etc. and
-can be viewed here: [https://github.com/haskell/ghcup-metadata](https://github.com/haskell/ghcup-metadata)
+Metadata files are also called release or distribution channels. They describe tool versions, where to download them etc. and
+can be viewed here: [https://github.com/haskell/ghcup-metadata](https://github.com/haskell/ghcup-metadata).
 
-### Mirrors
+See the [description](https://github.com/haskell/ghcup-metadata#metadata-variants-distribution-channels)
+of metadata files to understand their purpose. These can be combined.
 
-GHCup allows to use custom mirrors/download-info hosted by yourself or 3rd parties.
-
-To use a mirror, set the following option in `~/.ghcup/config.yaml`:
-
-```yml
-url-source:
-  # Accepts file/http/https scheme
-  OwnSource: "https://some-url/ghcup-0.0.6.yaml"
-```
-
-See [config.yaml](https://github.com/haskell/ghcup-hs/blob/master/data/config.yaml)
-for more options.
-
-Alternatively you can do it via a cli switch:
-
-```sh
-ghcup --url-source=https://some-url/ghcup-0.0.6.yaml list
-```
-
-#### Known mirrors
-
-1. [https://mirror.sjtu.edu.cn/docs/ghcup](https://mirror.sjtu.edu.cn/docs/ghcup)
-2. [https://mirrors.ustc.edu.cn/help/ghcup.html](https://mirrors.ustc.edu.cn/help/ghcup.html)
-
-### (Pre-)Release channels
-
-A release channel is basically just a metadata file location. You can add additional release
-channels that complement the default one, such as the **prerelease channel** like so:
+For example, if you want access to both prerelease and cross bindists, you'd do:
 
 ```sh
 ghcup config add-release-channel https://raw.githubusercontent.com/haskell/ghcup-metadata/master/ghcup-prereleases-0.0.7.yaml
+ghcup config add-release-channel https://raw.githubusercontent.com/haskell/ghcup-metadata/master/ghcup-cross-0.0.8.yaml
 ```
 
-This will result in `~/.ghcup/config.yaml` to contain this record:
+This results in the following configuration in `~/.ghcup/config.yaml`:
 
-```yml
+```yaml
 url-source:
-  AddSource:
-  - Right: https://raw.githubusercontent.com/haskell/ghcup-metadata/master/ghcup-prereleases-0.0.7.yaml
+# the base url that contains all the release bindists
+- GHCupURL
+# prereleases
+- https://raw.githubusercontent.com/haskell/ghcup-metadata/master/ghcup-prereleases-0.0.8.yaml
+# cross bindists
+- https://raw.githubusercontent.com/haskell/ghcup-metadata/master/ghcup-cross-0.0.8.yaml
 ```
 
 You can add as many channels as you like. They are combined under *Last*, so versions from the prerelease channel
@@ -195,18 +174,68 @@ To remove the channel, delete the entire `url-source` section or set it back to
 
 ```yml
 url-source:
-  GHCupURL: []
+  - GHCupURL
 ```
 
-If you want to combine your release channel with a mirror, you'd do it like so:
+Also see [config.yaml](https://github.com/haskell/ghcup-hs/blob/master/data/config.yaml)
+for more options.
+
+You can also use an alternative metadata via one-shot cli option:
+
+```sh
+ghcup --url-source=https://some-url/ghcup-0.0.8.yaml tui
+```
+
+One main caveat of using URLs is that you might need to check whether there are new versions
+of the file (e.g. `ghcup-0.0.7.yaml` vs `ghcup-0.0.8.yaml`). Although old metadata files
+are supported for some time, they are not so indefinitely.
+
+### Mirrors
+
+Metadata files can also be used to operate 3rd party mirrors, in which case you want to use
+a URL instead of the `GHCupURL` alias. E.g. in `~/.ghcup/config.yaml`, you'd do:
 
 ```yml
 url-source:
-  OwnSource:
-  # base metadata
-  - "https://mirror.sjtu.edu.cn/ghcup/yaml/ghcup/data/ghcup-0.0.6.yaml"
-  # prerelease channel
-  - "https://raw.githubusercontent.com/haskell/ghcup-metadata/master/ghcup-prereleases-0.0.7.yaml"
+  - https://mirror.sjtu.edu.cn/ghcup/yaml/ghcup/data/ghcup-0.0.6.yaml
+```
+
+Note that later versions of GHCup allow more sophisticated mirror support, see [here](./#mirrors-proper).
+
+#### Known mirrors
+
+1. [https://mirror.sjtu.edu.cn/docs/ghcup](https://mirror.sjtu.edu.cn/docs/ghcup)
+2. [https://mirrors.ustc.edu.cn/help/ghcup.html](https://mirrors.ustc.edu.cn/help/ghcup.html)
+
+### Git based metadata config
+
+If you don't like the way ghcup updates its metadata with caching and fetching via curl, you can also do as follows:
+
+Clone the metadata git repo:
+
+```sh
+mkdir -p /home/user/git/
+cd /home/user/git/
+git clone -b master https://github.com/haskell/ghcup-metadata.git
+```
+
+Then tell ghcup to use file locations in `~/.ghcup/config.yaml`, e.g.:
+
+```yaml
+url-source:
+- file:///home/user/git/ghcup-metadata/ghcup-0.0.8.yaml
+- file:///home/user/git/ghcup-metadata/ghcup-cross-0.0.8.yaml
+- file:///home/user/git/ghcup-metadata/ghcup-prereleases-0.0.8.yaml
+```
+
+Now, if you invoke `ghcup tui`, it will open instantly without any download, since it just
+reads the metadata from local disk.
+
+You'll have to update the metadata manually though, like so:
+
+```sh
+cd /home/user/git/
+git pull --ff-only origin master
 ```
 
 ## Stack integration
@@ -214,17 +243,7 @@ url-source:
 Stack manages GHC versions internally by default. In order to make it use ghcup installed
 GHC versions there are two strategies.
 
-### Strategy 1: System GHC (works on all stack versions)
-
-You can instruct stack to use "system" GHC versions (whatever is in PATH). To do so,
-run the following commands:
-
-```sh
-stack config set install-ghc false --global
-stack config set system-ghc  true  --global
-```
-
-### Strategy 2: Stack hooks (new, recommended)
+### Strategy 1: Stack hooks (new, recommended)
 
 Since stack 2.9.1 you can customize the installation logic of GHC completely, see [https://docs.haskellstack.org/en/stable/yaml_configuration/#ghc-installation-customisation](https://docs.haskellstack.org/en/stable/yaml_configuration/#ghc-installation-customisation).
 
@@ -246,6 +265,61 @@ stack config set system-ghc false --global
 By default, when the hook fails for whatever reason, stack will fall back to its own installation logic. To disable
 this, run `stack config set install-ghc false --global`.
 
+### Strategy 2: System GHC (works on all stack versions)
+
+You can instruct stack to use "system" GHC versions (whatever is in PATH). To do so,
+run the following commands:
+
+```sh
+stack config set install-ghc false --global
+stack config set system-ghc  true  --global
+```
+
+### Using stack's setup-info metadata to install GHC
+
+You can now use stack's [setup-info metadata](https://github.com/commercialhaskell/stackage-content/blob/master/stack/stack-setup-2.yaml)
+to install GHC. For that, you can invoke ghcup like so as a shorthand:
+
+```sh
+# ghcup will only see GHC now
+ghcup -s StackSetupURL install ghc 9.4.7
+# this combines both ghcup and stack metadata
+ghcup -s '["GHCupURL", "StackSetupURL"]' install ghc 9.4.7
+```
+
+To make this permanent and combine it with the GHCup metadata, you can add the following to your `~/.ghcup/config.yaml`:
+
+```yaml
+url-source:
+  - GHCupURL
+  # stack versions take precedence
+  # you'll still have access to GHCup provided versions and tools in case they don't exist in stack metadata
+  - StackSetupURL
+```
+
+You can customize or add sections to the setup-info similar to how the [stack documentation](https://docs.haskellstack.org/en/stable/yaml_configuration/#setup-info) explains it. E.g. to change the 9.4.7 bindist, you might do:
+
+```yaml
+url-source:
+  - GHCupURL
+  - StackSetupURL
+  - setup-info:
+      ghc:
+        linux64-tinfo6:
+          9.4.7:
+            url: "https://downloads.haskell.org/~ghc/9.4.7/ghc-9.4.7-x86_64-fedora27-linux.tar.xz"
+            content-length: 179117892
+            sha256: 216b76b7c6383e6ad9ba82533f323f8550e52893a8b9fa33c7b9dc4201ac766a
+```
+
+#### Caveats
+
+The main caveat with using this method is that there's no guarantee that GHCup will pick a compatible HLS bindist
+when you try to install HLS.
+
+Another potential usability issue is that the `latest` and `recommended` shorthands won't work anymore, since
+Stack metadata doesn't have a concept of those and we don't try to be smart when combining the metadatas.
+
 ### Windows
 
 On windows, you may find the following config options useful too:
@@ -253,6 +327,39 @@ On windows, you may find the following config options useful too:
 
 Also check out: [https://docs.haskellstack.org/en/stable/yaml_configuration](https://docs.haskellstack.org/en/stable/yaml_configuration)
 
+## Mirrors (proper)
+
+Mirrors are now supported via configuration, instead of specifying alternative metadata files.
+
+As an example, this would be a complete mirror configuration in `~/.ghcup/config.yaml`:
+
+```yaml
+mirrors:
+  # yaml download location, would result in:
+  #      https://raw.githubusercontent.com/haskell/ghcup-metadata/develop/ghcup-0.0.8.yaml
+  #   -> https://mirror.sjtu.edu.cn/ghcup/yaml/haskell/ghcup-metadata/master/ghcup-0.0.8.yaml
+  "raw.githubusercontent.com":
+    authority:
+      host: "mirror.sjtu.edu.cn"
+    pathPrefix: "ghcup/yaml"
+  # for stack and some older HLS versions, would result in e.g.
+  #      https://github.com/haskell/haskell-language-server/releases/download/1.2.0/haskell-language-server-Windows-1.2.0.tar.gz
+  #   -> https://mirror.sjtu.edu.cn/ghcup/github/haskell/haskell-language-server/releases/download/1.2.0/haskell-language-server-Windows-1.2.0.tar.gz
+  "github.com":
+    authority:
+      host: "mirror.sjtu.edu.cn"
+    pathPrefix: "ghcup/github"
+  # for all haskell.org hosted bindists, would result in e.g.
+  #      https://downloads.haskell.org/~ghc/9.8.1/ghc-9.8.1-x86_64-deb10-linux.tar.xz
+  #   -> https://mirror.sjtu.edu.cn/ghcup/haskell-downloads/~ghc/9.8.1/ghc-9.8.1-x86_64-deb10-linux.tar.xz
+  "downloads.haskell.org":
+    authority:
+      host: "mirror.sjtu.edu.cn"
+    pathPrefix: "downloads.haskell.org"
+```
+
+The configuration depends on the host of the mirror and they have to provide the correct configuration.
+
 # More on installation
 
 ## Customisation of the installation scripts
@@ -389,9 +496,9 @@ ghcup compile hls --git-ref master --git-describe-version --ghc 8.10.7 --ghc 9.2
 
 This however will create a new HLS version in ghcup, e.g. `1.7.0.0-105-gdc682ba1`, for both 8.10.7 and 9.2.4. If you want to switch back to the official bindists, run `ghcup set hls 1.7.0.0`.
 
-### Cross support
+## Cross support
 
-ghcup can compile and install a cross GHC for any target. However, this
+ghcup can compile a cross GHC for any target. However, this
 requires that the build host has a complete cross toolchain and various
 libraries installed for the target platform.
 
@@ -400,6 +507,76 @@ For distributions with non-standard locations of cross toolchain and
 libraries, this may need some tweaking of `build.mk` or configure args.
 See `ghcup compile ghc --help` for further information.
 
+Since ghcup version 0.1.20.0, we provide cross bindists for GHC JS and WASM. These can be installed conveniently.
+However, these are intended as a developer preview only. By using these GHC variants, you are implicitly signing up to participate in GHC development!
+If you run into bugs or missing behavior, join the dev chat at https://matrix.to/#/#GHC:matrix.org. 
+
+First, add the cross release channel:
+
+```sh
+ghcup config add-release-channel https://raw.githubusercontent.com/haskell/ghcup-metadata/develop/ghcup-cross-0.0.8.yaml
+```
+
+The next sections explain how to install each cross bindist.
+
+### GHC JS cross bindists (experimental)
+
+You need the required emscripten JS toolchain:
+
+```sh
+git clone https://github.com/emscripten-core/emsdk.git
+cd emsdk
+./emsdk install latest
+./emsdk activate latest
+source ./emsdk_env.sh
+```
+
+Instructions are also here: [Download and install — Emscripten 3.1.43-git (dev) documentation](https://emscripten.org/docs/getting_started/downloads.html).
+
+To install we need to invoke ghcup like so:
+
+```sh
+emconfigure ghcup install ghc --set javascript-unknown-ghcjs-9.6.2
+```
+
+You'll now have the compiler `javascript-unknown-ghcjs-ghc`. To build a hello world, do e.g.:
+
+```sh
+echo 'main = putStrLn "hello world"' > hello.hs
+javascript-unknown-ghcjs-ghc -fforce-recomp hello.hs
+./hello
+```
+
+You can follow the instructions [here](https://gitlab.haskell.org/ghc/ghc/-/wikis/javascript-backend/building#compiling-hello-world).
+
+### GHC WASM cross bindists (experimental)
+
+You need the required wasm toolchain:
+
+```sh
+git clone https://gitlab.haskell.org/ghc/ghc-wasm-meta.git
+cd ghc-wasm-meta/
+export SKIP_GHC=yes
+sh setup.sh
+source ~/.ghc-wasm/env
+```
+
+To install, we need to invoke ghcup like so also passing the `--host=<host>` flag (adjust as needed):
+
+```sh
+ghcup install ghc --set wasm32-wasi-9.6.3.20230927 -- --host=x86_64-linux --with-intree-gmp --with-system-libffi
+```
+
+Also check the documentation here: [Glasgow Haskell Compiler / ghc-wasm-meta](https://gitlab.haskell.org/ghc/ghc-wasm-meta).
+
+You'll now have the compiler `wasm32-wasi-ghc`. To build a hello world, do e.g.:
+
+```sh
+echo 'main = putStrLn "hello world"' > hello.hs
+wasm32-wasi-ghc hello.hs -o hello.wasm
+wasmtime ./hello.wasm
+```
+
 ## Isolated installs
 
 **Before using isolated installs, make sure to have at least GHCup version 0.1.17.8!**
@@ -456,8 +633,48 @@ variables and, in the case of Windows, parameters to tweak the script behavior.
 
 ### github workflows
 
-On github workflows you can use [https://github.com/haskell/actions/](https://github.com/haskell/actions/).
-GHCup itself is also pre-installed on all platforms, but may use non-standard install locations.
+On github workflows GHCup itself is pre-installed on all platforms, but may use non-standard install locations.
+Here's an example workflow with a GHC matrix:
+
+```yaml
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: true
+      matrix:
+        os: [ubuntu-22.04, macOS-latest]
+        ghc: ['9.6', '9.4', '9.2', '9.0', '8.10', '8.8', '8.6']
+    steps:
+    - uses: actions/checkout@v3
+    - name: Setup toolchain
+      run: |
+        ghcup install cabal --set recommended
+        ghcup install ghc --set ${{ matrix.ghc }}
+    - name: Build
+      run: |
+        cabal update
+        cabal test all --test-show-details=direct
+
+  i386:
+    runs-on: ubuntu-latest
+    container:
+      image: i386/ubuntu:bionic
+    steps:
+    - name: Install GHCup in container
+      run: |
+        apt-get update -y
+        apt-get install -y autoconf build-essential zlib1g-dev libgmp-dev curl
+        # we just go with recommended versions of cabal and GHC
+        curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | BOOTSTRAP_HASKELL_NONINTERACTIVE=1 BOOTSTRAP_HASKELL_INSTALL_NO_STACK=1 sh
+    - uses: actions/checkout@v1
+    - name: Test
+      run: |
+        # in containers we need to fix PATH
+        source ~/.ghcup/env
+        cabal update
+        cabal test all --test-show-details=direct
+```
 
 ## GPG verification
 

docs/install.md

@@ -42,10 +42,14 @@ Also see [tags and shortcuts](../guide/#tags-and-shortcuts) for more information
 
 The following distro packages are required: `build-essential curl libffi-dev libffi6 libgmp-dev libgmp10 libncurses-dev libncurses5 libtinfo5`
 
-#### Version >= 11
+#### Version >= 11 && <= 12
 
 The following distro packages are required: `build-essential curl libffi-dev libffi7 libgmp-dev libgmp10 libncurses-dev libncurses5 libtinfo5`
 
+#### Version >= 12
+
+The following distro packages are required: `build-essential curl libffi-dev libffi8 libgmp-dev libgmp10 libncurses-dev libncurses5 libtinfo5`
+
 ### Linux Ubuntu
 
 #### Generic
@@ -56,10 +60,13 @@ The following distro packages are required: `build-essential curl libffi-dev lib
 
 The following distro packages are required: `build-essential curl libffi-dev libffi7 libgmp-dev libgmp10 libncurses-dev libncurses5 libtinfo5`
 
-#### Version >= 20.10
+#### Version >= 20.10 && < 23
 
 The following distro packages are required: `build-essential curl libffi-dev libffi8ubuntu1 libgmp-dev libgmp10 libncurses-dev libncurses5 libtinfo5`
 
+#### Version >= 23
+
+The following distro packages are required: `build-essential curl libffi-dev libffi8ubuntu1 libgmp-dev libgmp10 libncurses-dev`
 
 ### Linux Fedora
 
@@ -133,16 +140,18 @@ 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>9.6.2</td><td><span style="color:blue">latest</span>, base-4.18.0.0</td></tr>
+<tr><td>9.8.1</td><td><span style="color:blue">latest</span>, base-4.19.0.0</td></tr>
+<tr><td>9.6.3</td><td>base-4.18.1.0</td></tr>
+<tr><td>9.6.2</td><td>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>9.4.7</td><td><span style="color:green">recommended</span>, 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>9.2.8</td><td><span style="color:green">recommended</span>, base-4.16.4.0</td></tr>
+<tr><td>9.2.8</td><td>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>
@@ -183,7 +192,8 @@ 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>3.10.1.0</td><td><span style="color:blue">latest</span></td></tr>
+<tr><td>3.10.2.0</td><td><span style="color:blue">latest</span></td></tr>
+<tr><td>3.10.1.0</td><td></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>
@@ -200,7 +210,9 @@ 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>2.2.0.0</td><td><span style="color:blue">latest</span>, <span style="color:green">recommended</span></td></tr>
+<tr><td>2.4.0.0</td><td><span style="color:blue">latest</span>, <span style="color:green">recommended</span></td></tr>
+<tr><td>2.3.0.0</td><td></td></tr>
+<tr><td>2.2.0.0</td><td></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>
@@ -225,8 +237,9 @@ 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>2.11.1</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>2.13.1</td><td><span style="color:blue">latest</span></td></tr>
+<tr><td>2.11.1</td><td><span style="color:green">recommended</span></td></tr>
+<tr><td>2.9.3</td><td></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>
@@ -242,7 +255,7 @@ This list may not be exhaustive and specifies support for bindists only.
 
 | Platform | Architecture | ghcup | GHC | cabal | HLS | stack |
 | ------ | ------ | ------ | ------ | ------ | ------ | ------ |
-| Windows 7 | amd64 | ❔ | ✅ | ✅ | ✅ | ✅ |
+| Windows 8.1 | amd64 | ✅ | ✅ | ✅ | ✅ | ✅ |
 | Windows 10 | amd64 | ✅ | ✅ | ✅ | ✅ | ✅ |
 | Windows Server 2016 | amd64 | ✅ | ✅ | ✅ | ✅ | ✅ |
 | Windows Server 2019 | amd64 | ✅ | ✅ | ✅ | ✅ | ✅ |
@@ -258,12 +271,11 @@ This list may not be exhaustive and specifies support for bindists only.
 | Linux generic | aarch64 | ✅ | ⚠️ | ✅ | ⚠️ | ❌ |
 | Linux generic | armv7 | ✅ | ⚠️ | ✅ | ⚠️ | ❌ |
 
-### Windows 7
+### Windows <8.1
 
-May or may not work, several issues:
-
-* [https://gitlab.haskell.org/haskell/ghcup-hs/-/issues/140](https://gitlab.haskell.org/haskell/ghcup-hs/-/issues/140)
-* [https://gitlab.haskell.org/haskell/ghcup-hs/-/issues/197](https://gitlab.haskell.org/haskell/ghcup-hs/-/issues/197)
+No longer supported for recent GHCs, according to manual testing of GHC 9.8.1 on Windows 7.
+According to [msys2 documentation](https://www.msys2.org/docs/windows_support), the minimum Windows
+version is now 8.1.
 
 ### WSL1
 

ghcup.cabal

@@ -1,6 +1,6 @@
 cabal-version:      2.4
 name:               ghcup
-version:            0.1.19.5
+version:            0.1.20.0
 license:            LGPL-3.0-only
 license-file:       LICENSE
 copyright:          Julian Ospald 2020
@@ -36,7 +36,7 @@ source-repository head
 
 flag tui
   description:
-    Build the brick powered tui (ghcup tui). This is disabled on windows.
+    Build the brick powered tui (ghcup tui).
 
   default:     False
   manual:      True
@@ -86,8 +86,8 @@ common app-common-depends
     , unordered-containers   ^>=0.2
     , uri-bytestring         ^>=0.3.2.2
     , utf8-string            ^>=1.0
-    , vector                 ^>=0.12
-    , versions               >=4.0.1    && <5.1
+    , vector                 >=0.12     && <0.14
+    , versions               >=6.0.3    && <6.1
     , yaml-streamly          ^>=0.12.0
 
 library
@@ -117,7 +117,9 @@ library
     GHCup.Types
     GHCup.Types.JSON
     GHCup.Types.JSON.Utils
+    GHCup.Types.JSON.Versions
     GHCup.Types.Optics
+    GHCup.Types.Stack
     GHCup.Utils
     GHCup.Utils.Dirs
     GHCup.Version
@@ -188,8 +190,8 @@ library
     , 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
+    , vector                 >=0.12     && <0.14
+    , versions              >=6.0.3      && <6.1
     , word8                 ^>=0.1.3
     , yaml-streamly         ^>=0.12.0
     , zlib                  ^>=0.6.2.2
@@ -234,9 +236,9 @@ library
       , unix             ^>=2.7
       , unix-bytestring  ^>=0.3.7.3
 
-  if (flag(tui) && !os(windows))
+  if flag(tui)
     cpp-options:   -DBRICK
-    build-depends: vty ^>=5.39
+    build-depends: vty ^>=6.0
 
 library ghcup-optparse
   import:             app-common-depends
@@ -282,7 +284,7 @@ library ghcup-optparse
   if flag(internal-downloader)
     cpp-options: -DINTERNAL_DOWNLOADER
 
-  if (flag(tui) && !os(windows))
+  if flag(tui)
     cpp-options:   -DBRICK
 
   if os(windows)
@@ -318,14 +320,13 @@ executable ghcup
   if flag(internal-downloader)
     cpp-options: -DINTERNAL_DOWNLOADER
 
-  if (flag(tui) && !os(windows))
+  if flag(tui)
     cpp-options:   -DBRICK
     other-modules: BrickMain
     build-depends:
-      , brick         ^>=1.5
+      , brick         ^>=2.1
       , transformers  ^>=0.5
-      , unix          ^>=2.7
-      , vty           ^>=5.39
+      , vty           ^>=6.0
 
   if os(windows)
     cpp-options: -DIS_WINDOWS
@@ -377,7 +378,7 @@ test-suite ghcup-test
     , 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
@@ -417,6 +418,7 @@ test-suite ghcup-optparse-test
     , optparse-applicative
     , tasty
     , tasty-hunit
+    , template-haskell
     , text
     , uri-bytestring
     , versions

lib-opt/GHCup/OptParse.hs

@@ -57,16 +57,13 @@ import           GHCup.Types
 import           Control.Monad.Fail             ( MonadFail )
 #endif
 import           Control.Monad.Reader
-import           Data.Bifunctor
 import           Data.Either
 import           Data.Functor
 import           Data.Maybe
 import           Options.Applicative     hiding ( style )
 import           Options.Applicative.Help.Pretty ( text )
 import           Prelude                 hiding ( appendFile )
-import           URI.ByteString
 
-import qualified Data.ByteString.UTF8          as UTF8
 
 
 data Options = Options
@@ -77,12 +74,13 @@ data Options = Options
   , optMetaCache   :: Maybe Integer
   , optMetaMode    :: Maybe MetaMode
   , optPlatform    :: Maybe PlatformRequest
-  , optUrlSource   :: Maybe URI
+  , optUrlSource   :: Maybe URLSource
   , optNoVerify    :: Maybe Bool
   , optKeepDirs    :: Maybe KeepDirs
   , optsDownloader :: Maybe Downloader
   , optNoNetwork   :: Maybe Bool
   , optGpg         :: Maybe GPGSetting
+  , optStackSetup  :: Maybe Bool
   -- commands
   , optCommand     :: Command
   }
@@ -134,13 +132,13 @@ opts =
       )
     <*> optional
           (option
-            (eitherReader parseUri)
+            (eitherReader parseUrlSource)
             (  short 's'
             <> long "url-source"
-            <> metavar "URL"
-            <> help "Alternative ghcup download info url"
+            <> metavar "URL_SOURCE"
+            <> help "Alternative ghcup download info"
             <> internal
-            <> completer fileUri
+            <> completer urlSourceCompleter
             )
           )
     <*> (fmap . fmap) not (invertableSwitch "verify" (Just 'n') True (help "Disable tarball checksum verification (default: enabled)"))
@@ -178,10 +176,9 @@ opts =
           "GPG verification (default: none)"
           <> completer (listCompleter ["strict", "lax", "none"])
           ))
+    <*> invertableSwitch "stack-setup" (Just 's') False (help "Use stack's setup info for discovering and installing GHC versions")
     <*> com
- where
-  parseUri s' =
-    first show $ parseURI strictURIParserOptions (UTF8.fromString s')
+
 
 
 com :: Parser Command

lib-opt/GHCup/OptParse/ChangeLog.hs

@@ -29,6 +29,7 @@ import           Data.Maybe
 import           Options.Applicative     hiding ( style )
 import           Prelude                 hiding ( appendFile )
 import           System.Exit
+import           System.Process                 ( system )
 import           Text.PrettyPrint.HughesPJClass ( prettyShow )
 
 import qualified Data.Text                     as T
@@ -128,21 +129,22 @@ changelog ChangeLogOptions{..} runAppState runLogger = do
     Just uri -> do
       pfreq <- runAppState getPlatformReq
       let uri' = T.unpack . decUTF8Safe . serializeURIRef' $ uri
-          cmd = case _rPlatform pfreq of
-                  Darwin  -> "open"
-                  Linux _ -> "xdg-open"
-                  FreeBSD -> "xdg-open"
-                  Windows -> "start"
-
       if clOpen
         then do
           runAppState $
-            exec cmd
-                 [T.unpack $ decUTF8Safe $ serializeURIRef' uri]
-                 Nothing
-                 Nothing
+            case _rPlatform pfreq of
+              Darwin  -> exec "open" [T.unpack $ decUTF8Safe $ serializeURIRef' uri] Nothing Nothing
+              Linux _ -> exec "xdg-open" [T.unpack $ decUTF8Safe $ serializeURIRef' uri] Nothing Nothing
+              FreeBSD -> exec "xdg-open" [T.unpack $ decUTF8Safe $ serializeURIRef' uri] Nothing Nothing
+              Windows -> do
+                let args = "start \"\" " ++ (T.unpack $ decUTF8Safe $ serializeURIRef' uri)
+                c <- liftIO $ system $ args
+                case c of
+                   (ExitFailure xi) -> pure $ Left $ NonZeroExit xi "cmd.exe" [args]
+                   ExitSuccess -> pure $ Right ()
               >>= \case
                     Right _ -> pure ExitSuccess
                     Left  e -> logError (T.pack $ prettyHFError e)
                       >> pure (ExitFailure 13)
         else liftIO $ putStrLn uri' >> pure ExitSuccess
+

lib-opt/GHCup/OptParse/Common.hs

@@ -48,7 +48,7 @@ import           Data.Maybe
 import           Data.Text                      ( Text )
 import           Data.Time.Calendar             ( Day )
 import           Data.Time.Format               ( parseTimeM, defaultTimeLocale )
-import           Data.Versions           hiding ( str )
+import           Data.Versions
 import           Data.Void
 import qualified Data.Vector      as V
 import           GHC.IO.Exception
@@ -64,6 +64,8 @@ import           URI.ByteString
 import qualified Data.ByteString.UTF8          as UTF8
 import qualified Data.Map.Strict               as M
 import qualified Data.Text                     as T
+import qualified Data.Text.Lazy.Encoding       as LE
+import qualified Data.Text.Lazy                as LT
 import qualified Text.Megaparsec               as MP
 import qualified System.FilePath.Posix         as FP
 import GHCup.Version
@@ -209,19 +211,7 @@ platformParser s' = case MP.parse (platformP <* MP.eof) "" (T.pack s') of
         )
     ]
   distroP :: MP.Parsec Void Text LinuxDistro
-  distroP = choice'
-    [ MP.chunk "debian" $> Debian
-    , MP.chunk "deb" $> Debian
-    , MP.chunk "ubuntu" $> Ubuntu
-    , MP.chunk "mint" $> Mint
-    , MP.chunk "fedora" $> Fedora
-    , MP.chunk "centos" $> CentOS
-    , MP.chunk "redhat" $> RedHat
-    , MP.chunk "alpine" $> Alpine
-    , MP.chunk "gentoo" $> Gentoo
-    , MP.chunk "exherbo" $> Exherbo
-    , MP.chunk "unknown" $> UnknownLinux
-    ]
+  distroP = choice' ((\d -> MP.chunk (T.pack $ distroToString d) $> d) <$> allDistros)
 
 
 uriParser :: String -> Either String URI
@@ -334,6 +324,15 @@ toolCompleter = listCompleter ["ghc", "cabal", "hls", "stack"]
 gitFileUri :: [String] -> Completer
 gitFileUri add = mkCompleter $ fileUri' (["git://"] <> add)
 
+urlSourceCompleter :: Completer
+urlSourceCompleter = mkCompleter $ urlSourceCompleter' []
+
+urlSourceCompleter' :: [String] -> String -> IO [String]
+urlSourceCompleter' add str' = do
+  let static = ["GHCupURL", "StackSetupURL"]
+  file <- fileUri' add str'
+  pure $ static ++ file
+
 fileUri :: Completer
 fileUri = mkCompleter $ fileUri' []
 
@@ -367,7 +366,7 @@ fileUri' add = \case
   -- We need to do this so bash doesn't expand out any ~ or other
   -- chars we want to complete on, or emit an end of line error
   -- when seeking the close to the quote.
-  -- 
+  --
   -- NOTE: copied from https://hackage.haskell.org/package/optparse-applicative-0.17.0.0/docs/src/Options.Applicative.Builder.Completer.html#requote
   requote :: String -> String
   requote s =
@@ -462,13 +461,15 @@ tagCompleter tool add = listIOCompleter $ do
         defaultKeyBindings
         loggerConfig
 
-  mGhcUpInfo <- flip runReaderT appState . runE $ getDownloadsF
-  case mGhcUpInfo of
-    VRight ghcupInfo -> do
-      let allTags = filter (/= Old)
-            $ _viTags =<< M.elems (availableToolVersions (_ghcupDownloads ghcupInfo) tool)
-      pure $ nub $ (add ++) $ fmap tagToString allTags
-    VLeft _ -> pure  (nub $ ["recommended", "latest", "latest-prerelease"] ++ add)
+  mpFreq <- flip runReaderT appState . runE $ platformRequest
+  forFold mpFreq $ \pfreq -> do
+    mGhcUpInfo <- flip runReaderT appState . runE $ getDownloadsF pfreq
+    case mGhcUpInfo of
+      VRight ghcupInfo -> do
+        let allTags = filter (/= Old)
+              $ _viTags =<< M.elems (availableToolVersions (_ghcupDownloads ghcupInfo) tool)
+        pure $ nub $ (add ++) $ fmap tagToString allTags
+      VLeft _ -> pure  (nub $ ["recommended", "latest", "latest-prerelease"] ++ add)
 
 versionCompleter :: [ListCriteria] -> Tool -> Completer
 versionCompleter criteria tool = versionCompleter' criteria tool (const True)
@@ -489,8 +490,8 @@ versionCompleter' criteria tool filter' = listIOCompleter $ do
                    defaultKeyBindings
                    loggerConfig
   mpFreq <- flip runReaderT leanAppState . runE $ platformRequest
-  mGhcUpInfo <- flip runReaderT leanAppState . runE $ getDownloadsF
   forFold mpFreq $ \pfreq -> do
+    mGhcUpInfo <- flip runReaderT leanAppState . runE $ getDownloadsF pfreq
     forFold mGhcUpInfo $ \ghcupInfo -> do
       let appState = AppState
             settings
@@ -829,3 +830,15 @@ logGHCPostRm ghcVer = do
   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
 
+parseUrlSource :: String -> Either String URLSource
+parseUrlSource "GHCupURL" = pure GHCupURL
+parseUrlSource "StackSetupURL" = pure StackSetupURL
+parseUrlSource s' = (eitherDecode . LE.encodeUtf8 . LT.pack $ s')
+            <|> (fmap (OwnSource . (:[]) . Right) . first show . parseURI strictURIParserOptions .UTF8.fromString $ s')
+
+parseNewUrlSource :: String -> Either String NewURLSource
+parseNewUrlSource "GHCupURL" = pure NewGHCupURL
+parseNewUrlSource "StackSetupURL" = pure NewStackSetupURL
+parseNewUrlSource s' = (eitherDecode . LE.encodeUtf8 . LT.pack $ s')
+            <|> (fmap NewURI . first show . parseURI strictURIParserOptions .UTF8.fromString $ s')
+

lib-opt/GHCup/OptParse/Config.hs

@@ -32,7 +32,6 @@ import           Options.Applicative     hiding ( style, ParseError )
 import           Options.Applicative.Help.Pretty ( text )
 import           Prelude                 hiding ( appendFile )
 import           System.Exit
-import           URI.ByteString          hiding ( uriParser )
 
 import qualified Data.Text                     as T
 import qualified Data.ByteString.UTF8          as UTF8
@@ -51,7 +50,7 @@ data ConfigCommand
   = ShowConfig
   | SetConfig String (Maybe String)
   | InitConfig
-  | AddReleaseChannel Bool URI
+  | AddReleaseChannel Bool NewURLSource
   deriving (Eq, Show)
 
 
@@ -68,15 +67,14 @@ configP = subparser
       <> command "show" showP
       <> command "add-release-channel" addP
       )
-    <|> argsP -- add show for a single option
     <|> pure ShowConfig
  where
   initP = info (pure InitConfig) (progDesc "Write default config to ~/.ghcup/config.yaml")
   showP = info (pure ShowConfig) (progDesc "Show current config (default)")
   setP  = info argsP (progDesc "Set config KEY to VALUE (or specify as single json value)" <> footerDoc (Just $ text configSetFooter))
   argsP = SetConfig <$> argument str (metavar "<JSON_VALUE | YAML_KEY>") <*> optional (argument str (metavar "YAML_VALUE"))
-  addP  = info (AddReleaseChannel <$> switch (long "force" <> help "Delete existing entry (if any) and append instead of failing") <*> argument (eitherReader uriParser) (metavar "URI" <> completer fileUri))
-    (progDesc "Add a release channel from a URI")
+  addP  = info (AddReleaseChannel <$> switch (long "force" <> help "Delete existing entry (if any) and append instead of failing") <*> argument (eitherReader parseNewUrlSource) (metavar "URL_SOURCE" <> completer urlSourceCompleter))
+    (progDesc "Add a release channel, e.g. from a URI")
 
 
 
@@ -151,7 +149,6 @@ updateSettings usl usr =
          , kSet = kSet kbl <|> kSet kbr
          , kChangelog = kChangelog kbl <|> kChangelog kbr
          , kShowAll = kShowAll kbl <|> kShowAll kbr
-         , kShowAllTools = kShowAllTools kbl <|> kShowAllTools kbr
          }
 
 
@@ -194,10 +191,14 @@ config configCommand settings userConf keybindings runLogger = case configComman
           throwE $ ParseError "Empty values are not allowed"
         Nothing -> do
           usersettings <- decodeSettings k
+          when (usersettings == defaultUserSettings)
+            $ throwE $ ParseError ("Failed to parse setting (maybe typo?): " <> k)
           lift $ doConfig usersettings
           pure ()
         Just v -> do
           usersettings <- decodeSettings (k <> ": " <> v <> "\n")
+          when (usersettings == defaultUserSettings)
+            $ throwE $ ParseError ("Failed to parse key '" <> k <> "' with value '" <> v <> "' as user setting. Maybe typo?")
           lift $ doConfig usersettings
           pure ()
     case r of
@@ -205,29 +206,19 @@ config configCommand settings userConf keybindings runLogger = case configComman
       VLeft (V (JSONDecodeError e)) -> do
         runLogger $ logError $ "Error decoding config: " <> T.pack e
         pure $ ExitFailure 65
-      VLeft _ -> pure $ ExitFailure 65
+      VLeft e -> do
+        runLogger (logError $ T.pack $ prettyHFError e)
+        pure $ ExitFailure 65
 
-  AddReleaseChannel force uri -> do
+  AddReleaseChannel force new -> do
     r <- runE @'[DuplicateReleaseChannel] $ do
-      case urlSource settings of
-        AddSource xs -> do
-          case checkDuplicate xs (Right uri) of
-            Duplicate
-              | not force -> throwE (DuplicateReleaseChannel uri)
-            DuplicateLast -> pure ()
-            _ -> lift $ doConfig (defaultUserSettings { uUrlSource = Just $ AddSource (appendUnique xs (Right uri)) })
-        GHCupURL -> do
-          lift $ doConfig (defaultUserSettings { uUrlSource = Just $ AddSource [Right uri] })
-          pure ()
-        OwnSource xs -> do
-          case checkDuplicate xs (Right uri) of
-            Duplicate
-              | not force -> throwE (DuplicateReleaseChannel uri)
-            DuplicateLast -> pure ()
-            _ -> lift $ doConfig (defaultUserSettings { uUrlSource = Just $ OwnSource (appendUnique xs (Right uri)) })
-        OwnSpec spec -> do
-          lift $ doConfig (defaultUserSettings { uUrlSource = Just $ OwnSource [Left spec, Right uri] })
-          pure ()
+      let oldSources = fromURLSource (urlSource settings)
+      let merged = oldSources ++ [new]
+      case checkDuplicate oldSources new of
+        Duplicate
+          | not force -> throwE (DuplicateReleaseChannel new)
+        DuplicateLast -> pure ()
+        _ -> lift $ doConfig (defaultUserSettings { uUrlSource = Just $ SimpleList merged })
     case r of
       VRight _ -> do
         pure ExitSuccess
@@ -242,15 +233,6 @@ config configCommand settings userConf keybindings runLogger = case configComman
     | a `elem` xs  = Duplicate
     | otherwise    = NoDuplicate
 
-  -- appends the element to the end of the list, but also removes it from the existing list
-  appendUnique :: Eq a => [a] -> a -> [a]
-  appendUnique xs' e = go xs'
-   where
-    go [] = [e]
-    go (x:xs)
-      | x == e    =     go xs -- skip
-      | otherwise = x : go xs
-
   doConfig :: MonadIO m => UserSettings -> m ()
   doConfig usersettings = do
     let settings' = updateSettings usersettings userConf

lib-opt/GHCup/OptParse/Install.hs

@@ -63,7 +63,6 @@ data InstallCommand = InstallGHC InstallOptions
     --[ Options ]--
     ---------------
 
-
 data InstallOptions = InstallOptions
   { instVer      :: Maybe ToolVersion
   , instBindist  :: Maybe URI
@@ -134,7 +133,7 @@ installParser =
            )
       )
     )
-    <|> (Right <$> installOpts Nothing)
+    <|> (Right <$> installOpts (Just GHC))
  where
   installHLSFooter :: String
   installHLSFooter = [s|Discussion:
@@ -291,6 +290,11 @@ type InstallGHCEffects = '[ AlreadyInstalled
                           , UninstallFailed
                           , UnknownArchive
                           , InstallSetError
+                          , NoCompatiblePlatform
+                          , GHCup.Errors.ParseError
+                          , UnsupportedSetupCombo
+                          , DistroNotFound
+                          , NoCompatibleArch
                           ]
 
 runInstGHC :: AppState
@@ -310,13 +314,13 @@ runInstGHC appstate' =
 
 install :: Either InstallCommand InstallOptions -> Settings -> IO AppState -> (ReaderT LeanAppState IO () -> IO ()) -> IO ExitCode
 install installCommand settings getAppState' runLogger = case installCommand of
-  (Right iopts) -> do
+  (Right iGHCopts) -> do
     runLogger (logWarn "This is an old-style command for installing GHC. Use 'ghcup install ghc' instead.")
-    installGHC iopts
-  (Left (InstallGHC iopts)) -> installGHC iopts
-  (Left (InstallCabal iopts)) -> installCabal iopts
-  (Left (InstallHLS iopts)) -> installHLS iopts
-  (Left (InstallStack iopts)) -> installStack iopts
+    installGHC iGHCopts
+  (Left (InstallGHC iGHCopts)) -> installGHC iGHCopts
+  (Left (InstallCabal iopts))  -> installCabal iopts
+  (Left (InstallHLS iopts))    -> installHLS iopts
+  (Left (InstallStack iopts))  -> installStack iopts
  where
   installGHC :: InstallOptions -> IO ExitCode
   installGHC InstallOptions{..} = do

lib-opt/GHCup/OptParse/List.hs

@@ -27,7 +27,7 @@ import           Data.List                      ( intercalate, sort )
 import           Data.Functor
 import           Data.Maybe
 import           Data.Time.Calendar             ( Day )
-import           Data.Versions           hiding ( str )
+import           Data.Versions
 import           Data.Void
 import           Options.Applicative     hiding ( style )
 import           Prelude                 hiding ( appendFile )

lib-opt/GHCup/OptParse/Prefetch.hs

@@ -14,6 +14,7 @@ module GHCup.OptParse.Prefetch where
 import           GHCup
 import           GHCup.Errors
 import           GHCup.Types
+import           GHCup.Types.Optics
 import           GHCup.Prelude.File
 import           GHCup.Prelude.Logger
 import           GHCup.Prelude.String.QQ
@@ -157,7 +158,9 @@ type PrefetchEffects = '[ TagNotFound
                         , GPGError
                         , DownloadFailed
                         , JSONError
-                        , FileDoesNotExistError ]
+                        , FileDoesNotExistError
+                        , StackPlatformDetectError
+                        ]
 
 
 runPrefetch :: MonadUnliftIO m
@@ -196,21 +199,22 @@ prefetch prefetchCommand runAppState runLogger =
           (v, _) <- liftE $ fromVersion mt GHC
           if pfGHCSrc
           then liftE $ fetchGHCSrc v pfCacheDir
-          else liftE $ fetchToolBindist (_tvVersion v) GHC pfCacheDir
+          else liftE $ fetchToolBindist v GHC pfCacheDir
       PrefetchCabal PrefetchOptions {pfCacheDir} mt   -> do
         forM_ pfCacheDir (liftIO . createDirRecursive')
         (v, _) <- liftE $ fromVersion mt Cabal
-        liftE $ fetchToolBindist (_tvVersion v) Cabal pfCacheDir
+        liftE $ fetchToolBindist v Cabal pfCacheDir
       PrefetchHLS PrefetchOptions {pfCacheDir} mt   -> do
         forM_ pfCacheDir (liftIO . createDirRecursive')
         (v, _) <- liftE $ fromVersion mt HLS
-        liftE $ fetchToolBindist (_tvVersion v) HLS pfCacheDir
+        liftE $ fetchToolBindist v HLS pfCacheDir
       PrefetchStack PrefetchOptions {pfCacheDir} mt   -> do
         forM_ pfCacheDir (liftIO . createDirRecursive')
         (v, _) <- liftE $ fromVersion mt Stack
-        liftE $ fetchToolBindist (_tvVersion v) Stack pfCacheDir
+        liftE $ fetchToolBindist v Stack pfCacheDir
       PrefetchMetadata -> do
-        _ <- liftE getDownloadsF
+        pfreq <- lift getPlatformReq
+        _ <- liftE $ getDownloadsF pfreq
         pure ""
        ) >>= \case
                 VRight _ -> do

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 )

lib-opt/GHCup/OptParse/Run.hs

@@ -187,6 +187,11 @@ type RunEffects = '[ AlreadyInstalled
                    , ProcessError
                    , UninstallFailed
                    , MergeFileTreeError
+                   , NoCompatiblePlatform
+                   , GHCup.Errors.ParseError
+                   , UnsupportedSetupCombo
+                   , DistroNotFound
+                   , NoCompatibleArch
                    ]
 
 runLeanRUN :: (MonadUnliftIO m, MonadIO m)
@@ -226,6 +231,7 @@ run :: forall m .
        , MonadCatch m
        , MonadIO m
        , MonadUnliftIO m
+       , Alternative m
        )
    => RunOptions
    -> IO AppState
@@ -255,7 +261,9 @@ run RunOptions{..} runAppState leanAppstate runLogger = do
                liftIO $ putStr tmp
                pure ExitSuccess
              (cmd:args) -> do
-               newEnv <- liftIO $ addToPath tmp runAppendPATH
+               newEnv <- liftIO $ addToPath [tmp] runAppendPATH
+               let pathVar = if isWindows then "Path" else "PATH"
+               forM_ (Map.lookup pathVar . Map.fromList $ newEnv) $ liftIO . setEnv pathVar
 #ifndef IS_WINDOWS
                void $ liftIO $ SPP.executeFile cmd True args (Just newEnv)
                pure ExitSuccess
@@ -329,6 +337,7 @@ run RunOptions{..} runAppState leanAppstate runLogger = do
                            , MonadThrow m
                            , MonadIO m
                            , MonadCatch m
+                           , Alternative m
                            )
                         => Toolchain
                         -> FilePath
@@ -354,6 +363,11 @@ run RunOptions{..} runAppState leanAppstate runLogger = do
                               , CopyError
                               , UninstallFailed
                               , MergeFileTreeError
+                              , NoCompatiblePlatform
+                              , GHCup.Errors.ParseError
+                              , UnsupportedSetupCombo
+                              , DistroNotFound
+                              , NoCompatibleArch
                               ] (ResourceT (ReaderT AppState m)) ()
    installToolChainFull Toolchain{..} tmp = do
          case ghcVer of

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 )

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
 
 
 

lib/GHCup.hs

@@ -100,7 +100,7 @@ fetchToolBindist :: ( MonadFail m
                     , MonadIO m
                     , MonadUnliftIO m
                     )
-                 => Version
+                 => GHCTargetVersion
                  -> Tool
                  -> Maybe FilePath
                  -> Excepts
@@ -113,7 +113,7 @@ fetchToolBindist :: ( MonadFail m
                       m
                       FilePath
 fetchToolBindist v t mfp = do
-  dlinfo <- liftE $ getDownloadInfo t v
+  dlinfo <- liftE $ getDownloadInfo' t v
   liftE $ downloadCached' dlinfo Nothing mfp
 
 

lib/GHCup/Download.hs

@@ -5,7 +5,6 @@
 {-# LANGUAGE TypeApplications      #-}
 {-# LANGUAGE TypeFamilies          #-}
 
-
 {-|
 Module      : GHCup.Download
 Description : Downloading
@@ -31,9 +30,11 @@ import           GHCup.Download.Utils
 #endif
 import           GHCup.Errors
 import           GHCup.Types
+import qualified GHCup.Types.Stack                as Stack
 import           GHCup.Types.Optics
 import           GHCup.Types.JSON               ( )
 import           GHCup.Utils.Dirs
+import           GHCup.Platform
 import           GHCup.Prelude
 import           GHCup.Prelude.File
 import           GHCup.Prelude.Logger.Internal
@@ -55,6 +56,7 @@ import           Data.ByteString                ( ByteString )
 import           Data.CaseInsensitive           ( mk )
 #endif
 import           Data.Maybe
+import           Data.Either
 import           Data.List
 import           Data.Time.Clock
 import           Data.Time.Clock.POSIX
@@ -112,33 +114,84 @@ getDownloadsF :: ( FromJSONKey Tool
                  , MonadFail m
                  , MonadMask m
                  )
-              => Excepts
-                   '[DigestError, ContentLengthError, GPGError, JSONError , DownloadFailed , FileDoesNotExistError]
+              => PlatformRequest
+              -> Excepts
+                   '[DigestError, ContentLengthError, GPGError, JSONError , DownloadFailed , FileDoesNotExistError, StackPlatformDetectError]
                    m
                    GHCupInfo
-getDownloadsF = do
+getDownloadsF pfreq@(PlatformRequest arch plat _) = do
   Settings { urlSource } <- lift getSettings
-  case urlSource of
-    GHCupURL -> liftE $ getBase ghcupURL
-    (OwnSource exts) -> do
-      ext  <- liftE $ mapM (either pure getBase) exts
-      mergeGhcupInfo ext
-    (OwnSpec av) -> pure av
-    (AddSource exts) -> do
-      base <- liftE $ getBase ghcupURL
-      ext  <- liftE $ mapM (either pure getBase) exts
-      mergeGhcupInfo (base:ext)
-
+  let newUrlSources = fromURLSource urlSource
+  infos <- liftE $ mapM dl' newUrlSources
+  keys <- if any isRight infos
+          then liftE . reThrowAll @_ @_ @'[StackPlatformDetectError] StackPlatformDetectError $ getStackPlatformKey pfreq
+          else pure []
+  ghcupInfos <- fmap catMaybes $ forM infos $ \case
+    Left gi  -> pure (Just gi)
+    Right si -> pure $ fromStackSetupInfo si keys
+  mergeGhcupInfo ghcupInfos
  where
+
+  dl' :: ( FromJSONKey Tool
+         , FromJSONKey Version
+         , FromJSON VersionInfo
+         , MonadReader env m
+         , HasSettings env
+         , HasDirs env
+         , MonadIO m
+         , MonadCatch m
+         , HasLog env
+         , MonadThrow m
+         , MonadFail m
+         , MonadMask m
+         )
+      => NewURLSource
+      -> Excepts
+           '[DownloadFailed, GPGError, DigestError, ContentLengthError, JSONError, FileDoesNotExistError]
+           m (Either GHCupInfo Stack.SetupInfo)
+  dl' NewGHCupURL       = fmap Left $ liftE (getBase ghcupURL) >>= liftE . decodeMetadata @GHCupInfo
+  dl' NewStackSetupURL  = fmap Right $ liftE (getBase stackSetupURL) >>= liftE . decodeMetadata @Stack.SetupInfo
+  dl' (NewGHCupInfo gi) = pure (Left gi)
+  dl' (NewSetupInfo si) = pure (Right si)
+  dl' (NewURI uri)      = do
+                            base <- liftE $ getBase uri
+                            catchE @JSONError (\(JSONDecodeError _) -> do
+                                logDebug $ "Couldn't decode " <> T.pack base <> " as GHCupInfo, trying as SetupInfo: "
+                                Right <$> decodeMetadata @Stack.SetupInfo base)
+                              $ fmap Left (decodeMetadata @GHCupInfo base >>= \gI -> warnOnMetadataUpdate uri gI >> pure gI)
+
+  fromStackSetupInfo :: MonadThrow m
+                     => Stack.SetupInfo
+                     -> [String]
+                     -> m GHCupInfo
+  fromStackSetupInfo (Stack.siGHCs -> ghcDli) keys = do
+    let ghcVersionsPerKey = (`M.lookup` ghcDli) <$> (T.pack <$> keys)
+        ghcVersions = fromMaybe mempty . listToMaybe . catMaybes $ ghcVersionsPerKey
+    (ghcupInfo' :: M.Map GHCTargetVersion DownloadInfo) <-
+      M.mapKeys mkTVer <$> M.traverseMaybeWithKey (\_ a -> pure $ fromStackDownloadInfo a) ghcVersions
+    let ghcupDownloads' = M.singleton GHC (M.map fromDownloadInfo ghcupInfo')
+    pure (GHCupInfo mempty ghcupDownloads' Nothing)
+   where
+    fromDownloadInfo :: DownloadInfo -> VersionInfo
+    fromDownloadInfo dli = let aspec = M.singleton arch (M.singleton plat (M.singleton Nothing dli))
+                           in VersionInfo [] Nothing Nothing Nothing Nothing aspec Nothing Nothing Nothing
+
+    fromStackDownloadInfo :: MonadThrow m => Stack.GHCDownloadInfo -> m DownloadInfo
+    fromStackDownloadInfo (Stack.GHCDownloadInfo { gdiDownloadInfo = Stack.DownloadInfo{..} }) = do
+      url <- either (\e -> throwM $ ParseError (show e)) pure $ parseURI strictURIParserOptions . E.encodeUtf8 $ downloadInfoUrl
+      sha256 <- maybe (throwM $ DigestMissing url) (pure . E.decodeUtf8) downloadInfoSha256
+      pure $ DownloadInfo url (Just $ RegexDir "ghc-.*") sha256 Nothing Nothing
+
+
   mergeGhcupInfo :: MonadFail m
                  => [GHCupInfo]
                  -> m GHCupInfo
   mergeGhcupInfo [] = fail "mergeGhcupInfo: internal error: need at least one GHCupInfo"
   mergeGhcupInfo xs@(GHCupInfo{}: _) =
     let newDownloads   = M.unionsWith (M.unionWith (\_ b2 -> b2)) (_ghcupDownloads   <$> xs)
-        newGlobalTools = M.unionsWith (\_ a2 -> a2              ) (_globalTools      <$> xs)
         newToolReqs    = M.unionsWith (M.unionWith (\_ b2 -> b2)) (_toolRequirements <$> xs)
-    in pure $ GHCupInfo newToolReqs newDownloads newGlobalTools
+    in pure $ GHCupInfo newToolReqs newDownloads Nothing
+
 
 
 yamlFromCache :: (MonadReader env m, HasDirs env) => URI -> m FilePath
@@ -151,7 +204,7 @@ etagsFile :: FilePath -> FilePath
 etagsFile = (<.> "etags")
 
 
-getBase :: ( MonadReader env m
+getBase :: forall m env . ( MonadReader env m
            , HasDirs env
            , HasSettings env
            , MonadFail m
@@ -161,7 +214,7 @@ getBase :: ( MonadReader env m
            , MonadMask m
            )
         => URI
-        -> Excepts '[DownloadFailed, GPGError, DigestError, ContentLengthError, JSONError, FileDoesNotExistError] m GHCupInfo
+        -> Excepts '[DownloadFailed, GPGError, DigestError, ContentLengthError] m FilePath
 getBase uri = do
   Settings { noNetwork, downloader, metaMode } <- lift getSettings
 
@@ -181,25 +234,8 @@ getBase uri = do
                $ uri
 
   -- if we didn't get a filepath from the download, use the cached yaml
-  actualYaml <- maybe (lift $ yamlFromCache uri) pure mYaml
-  lift $ logDebug $ "Decoding yaml at: " <> T.pack actualYaml
-
-  liftE
-    . onE_ (onError actualYaml)
-    . lEM' @_ @_ @'[JSONError] (\(displayException -> e) -> JSONDecodeError $ unlines [e, "Consider removing " <> actualYaml <> " manually."])
-    . liftIO
-    . Y.decodeFileEither
-    $ actualYaml
+  maybe (lift $ yamlFromCache uri) pure mYaml
  where
-  -- On error, remove the etags file and set access time to 0. This should ensure the next invocation
-  -- may re-download and succeed.
-  onError :: (MonadReader env m, HasLog env, MonadMask m, MonadCatch m, MonadIO m) => FilePath -> m ()
-  onError fp = do
-    let efp = etagsFile fp
-    handleIO (\e -> logWarn $ "Couldn't remove file " <> T.pack efp <> ", error was: " <> T.pack (displayException e))
-      (hideError doesNotExistErrorType $ rmFile efp)
-    liftIO $ hideError doesNotExistErrorType $ setAccessTime fp (posixSecondsToUTCTime (fromIntegral @Int 0))
-
   warnCache :: (MonadReader env m, HasLog env, MonadMask m, MonadCatch m, MonadIO m) => FilePath -> Downloader -> m ()
   warnCache s downloader' = do
     let tryDownloder = case downloader' of
@@ -271,6 +307,69 @@ getBase uri = do
 
       pure f
 
+warnOnMetadataUpdate ::
+           ( MonadReader env m
+           , MonadIO m
+           , HasLog env
+           , HasDirs env
+           )
+        => URI
+        -> GHCupInfo
+        -> m ()
+warnOnMetadataUpdate uri (GHCupInfo { _metadataUpdate = Just newUri })
+  | scheme' uri == "file"
+  , urlBase' uri /= urlBase' newUri = do
+      confFile <- getConfigFilePath'
+      logWarn $ "New metadata version detected"
+                           <> "\n    old URI: " <> (decUTF8Safe . serializeURIRef') uri
+                           <> "\n    new URI: " <> (decUTF8Safe . serializeURIRef') newUri
+                           <> "\nYou might need to update your " <> T.pack confFile
+  | scheme' uri /= "file"
+  , uri /= newUri = do
+      confFile <- getConfigFilePath'
+      logWarn $ "New metadata version detected"
+                           <> "\n    old URI: " <> (decUTF8Safe . serializeURIRef') uri
+                           <> "\n    new URI: " <> (decUTF8Safe . serializeURIRef') newUri
+                           <> "\nYou might need to update your " <> T.pack confFile
+ where
+  scheme' = view (uriSchemeL' % schemeBSL')
+  urlBase' = T.unpack . decUTF8Safe . urlBaseName . view pathL'
+warnOnMetadataUpdate _ _ = pure ()
+
+
+decodeMetadata :: forall j m env .
+               ( MonadReader env m
+               , HasDirs env
+               , HasSettings env
+               , MonadFail m
+               , MonadIO m
+               , MonadCatch m
+               , HasLog env
+               , MonadMask m
+               , FromJSON j
+               )
+               => FilePath
+               -> Excepts '[JSONError, FileDoesNotExistError] m j
+decodeMetadata actualYaml = do
+  lift $ logDebug $ "Decoding yaml at: " <> T.pack actualYaml
+
+  liftE
+    . onE_ (onError actualYaml)
+    . lEM' @_ @_ @'[JSONError] (\(displayException -> e) -> JSONDecodeError $ unlines [e, "Consider removing " <> actualYaml <> " manually."])
+    . liftIO
+    . Y.decodeFileEither
+    $ actualYaml
+ where
+  -- On error, remove the etags file and set access time to 0. This should ensure the next invocation
+  -- may re-download and succeed.
+  onError :: (MonadReader env m, HasLog env, MonadMask m, MonadCatch m, MonadIO m) => FilePath -> m ()
+  onError fp = do
+    let efp = etagsFile fp
+    handleIO (\e -> logWarn $ "Couldn't remove file " <> T.pack efp <> ", error was: " <> T.pack (displayException e))
+      (hideError doesNotExistErrorType $ rmFile efp)
+    liftIO $ hideError doesNotExistErrorType $ setAccessTime fp (posixSecondsToUTCTime (fromIntegral @Int 0))
+
+
 getDownloadInfo :: ( MonadReader env m
                    , HasPlatformReq env
                    , HasGHCupInfo env
@@ -326,6 +425,7 @@ getDownloadInfo' t v = do
     )
 
 
+
 -- | Tries to download from the given http or https url
 -- and saves the result in continuous memory into a file.
 -- If the filename is not provided, then we:

lib/GHCup/Errors.hs

@@ -87,6 +87,7 @@ allHFError = unlines allErrors
     , let proxy = Proxy :: Proxy ToolShadowed in format proxy
     , let proxy = Proxy :: Proxy ContentLengthError in format proxy
     , let proxy = Proxy :: Proxy DuplicateReleaseChannel in format proxy
+    , let proxy = Proxy :: Proxy UnsupportedSetupCombo in format proxy
     , ""
     , "# high level errors (4000+)"
     , let proxy = Proxy :: Proxy DownloadFailed in format proxy
@@ -99,6 +100,7 @@ allHFError = unlines allErrors
     , let proxy = Proxy :: Proxy ParseError in format proxy
     , let proxy = Proxy :: Proxy UnexpectedListLength in format proxy
     , let proxy = Proxy :: Proxy NoUrlBase in format proxy
+    , let proxy = Proxy :: Proxy DigestMissing in format proxy
     , ""
     , "# orphans (800+)"
     , let proxy = Proxy :: Proxy URIParseError in format proxy
@@ -207,7 +209,6 @@ instance HFErrorProject NoCompatiblePlatform where
 
 -- | Unable to find a download for the requested version/distro.
 data NoDownload = NoDownload GHCTargetVersion Tool (Maybe PlatformRequest)
-                | NoDownload' GlobalTool
   deriving Show
 
 instance Pretty NoDownload where
@@ -225,7 +226,6 @@ instance Pretty NoDownload where
              <> 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
@@ -674,18 +674,29 @@ instance HFErrorProject ContentLengthError where
   eBase _ = 340
   eDesc _ = "File content length verification failed"
 
-data DuplicateReleaseChannel = DuplicateReleaseChannel URI
+data DuplicateReleaseChannel = DuplicateReleaseChannel NewURLSource
   deriving Show
 
 instance HFErrorProject DuplicateReleaseChannel where
   eBase _ = 350
-  eDesc _ = "Duplicate release channel detected when adding URI.\nGiving up. You can use '--force' to remove and append the duplicate URI (this may change order/semantics)."
+  eDesc _ = "Duplicate release channel detected when adding new source.\nGiving up. You can use '--force' to remove and append the duplicate source (this may change order/semantics)."
 
 instance Pretty DuplicateReleaseChannel where
-  pPrint (DuplicateReleaseChannel uri) =
+  pPrint (DuplicateReleaseChannel source) =
     text $ "Duplicate release channel detected when adding: \n  "
-      <> (T.unpack . E.decodeUtf8With E.lenientDecode . serializeURIRef') uri
-      <> "\nGiving up. You can use '--force' to remove and append the duplicate URI (this may change order/semantics)."
+      <> show source
+      <> "\nGiving up. You can use '--force' to remove and append the duplicate source (this may change order/semantics)."
+
+data UnsupportedSetupCombo = UnsupportedSetupCombo Architecture Platform
+  deriving Show
+
+instance Pretty UnsupportedSetupCombo where
+  pPrint (UnsupportedSetupCombo arch plat) =
+    text "Could not find a compatible setup combo for:" <+> pPrint arch <+> pPrint plat
+
+instance HFErrorProject UnsupportedSetupCombo where
+  eBase _ = 360
+  eDesc _ = "Could not find a compatible setup combo"
 
     -------------------------
     --[ High-level errors ]--
@@ -711,7 +722,7 @@ data InstallSetError = forall xs1 xs2 . (Show (V xs1), Pretty (V xs1), HFErrorPr
 
 instance Pretty InstallSetError where
   pPrint (InstallSetError reason1 reason2) =
-     text "Both installation and setting the tool failed. Install error was:"
+     text "Both installation and setting the tool failed.\nInstall error was:"
       <+> pPrint reason1
       <+> text "\nSet error was:"
       <+> pPrint reason2
@@ -774,6 +785,22 @@ instance HFErrorProject GHCupSetError where
   eNum (GHCupSetError xs) = 9000 + eNum xs
   eDesc _ = "Setting the current version failed."
 
+-- | Executing stacks platform detection failed.
+data StackPlatformDetectError = forall es . (ToVariantMaybe StackPlatformDetectError es, PopVariant StackPlatformDetectError es, Show (V es), Pretty (V es), HFErrorProject (V es)) => StackPlatformDetectError (V es)
+
+instance Pretty StackPlatformDetectError where
+  pPrint (StackPlatformDetectError reason) =
+    case reason of
+      VMaybe (_ :: StackPlatformDetectError) -> pPrint reason
+      _ -> text "Running stack platform detection logic failed:" <+> pPrint reason
+
+deriving instance Show StackPlatformDetectError
+
+instance HFErrorProject StackPlatformDetectError where
+  eBase _ = 6000
+  eNum (StackPlatformDetectError xs) = 6000 + eNum xs
+  eDesc _ = "Running stack platform detection logic failed."
+
 
     ---------------------------------------------
     --[ True Exceptions (e.g. for MonadThrow) ]--
@@ -821,6 +848,18 @@ instance HFErrorProject NoUrlBase where
   eBase _ = 520
   eDesc _ = "URL does not have a base filename."
 
+data DigestMissing = DigestMissing URI
+  deriving Show
+
+instance Pretty DigestMissing where
+  pPrint (DigestMissing uri) =
+    text "Digest missing for:" <+> (text . T.unpack . E.decodeUtf8With E.lenientDecode . serializeURIRef') uri
+
+instance Exception DigestMissing
+
+instance HFErrorProject DigestMissing where
+  eBase _ = 530
+  eDesc _ = "An expected digest is missing."
 
 
     ------------------------

lib/GHCup/GHC.hs

@@ -74,6 +74,7 @@ import qualified Crypto.Hash.SHA256            as SHA256
 import qualified Data.ByteString.Base16        as B16
 import qualified Data.ByteString               as B
 import qualified Data.ByteString.Lazy          as BL
+import qualified Data.Map.Strict               as Map
 import qualified Data.Text                     as T
 import qualified Data.Text.IO                  as T
 import qualified Data.Text.Encoding            as E
@@ -216,7 +217,9 @@ 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
+  env <- liftIO $ addToPath [ghcBinDir] False
+  let pathVar = if isWindows then "Path" else "PATH"
+  forM_ (Map.lookup pathVar . Map.fromList $ env) $ liftIO . setEnv pathVar
 
   lEM $ make' (fmap T.unpack addMakeArgs)
               (Just $ fromGHCupPath path)
@@ -512,6 +515,7 @@ installGHCBin :: ( MonadFail m
                  , MonadResource m
                  , MonadIO m
                  , MonadUnliftIO m
+                 , Alternative m
                  )
               => GHCTargetVersion -- ^ the version to install
               -> InstallDir
@@ -533,6 +537,11 @@ installGHCBin :: ( MonadFail m
                     , ProcessError
                     , UninstallFailed
                     , MergeFileTreeError
+                    , NoCompatiblePlatform
+                    , ParseError
+                    , UnsupportedSetupCombo
+                    , DistroNotFound
+                    , NoCompatibleArch
                     ]
                    m
                    ()
@@ -754,7 +763,8 @@ rmGHCVer ver = do
 
   Dirs {..} <- lift getDirs
 
-  lift $ hideError doesNotExistErrorType $ rmDirectoryLink (fromGHCupPath baseDir </> "share")
+  when isSetGHC $ do
+    lift $ hideError doesNotExistErrorType $ rmDirectoryLink (fromGHCupPath baseDir </> "share")
 
 
 

lib/GHCup/HLS.hs

@@ -717,8 +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/Platform.hs

@@ -28,6 +28,8 @@ import           GHCup.Prelude
 import           GHCup.Prelude.Logger
 import           GHCup.Prelude.Process
 import           GHCup.Prelude.String.QQ
+import           GHCup.Prelude.Version.QQ
+import           GHCup.Prelude.MegaParsec
 
 #if !MIN_VERSION_base(4,13,0)
 import           Control.Monad.Fail             ( MonadFail )
@@ -48,11 +50,18 @@ import           Prelude                 hiding ( abs
                                                 )
 import           System.Info
 import           System.OsRelease
+import           System.Exit
+import           System.FilePath
 import           Text.PrettyPrint.HughesPJClass ( prettyShow )
 import           Text.Regex.Posix
 
+import qualified Text.Megaparsec               as MP
+
 import qualified Data.Text                     as T
 import qualified Data.Text.IO                  as T
+import           Data.Void
+import qualified Data.List                     as L
+
 
 
 
@@ -143,6 +152,9 @@ getLinuxDistro = do
         | hasWord name ["exherbo"] -> Exherbo
         | hasWord name ["gentoo"]  -> Gentoo
         | hasWord name ["amazonlinux", "Amazon Linux"] -> AmazonLinux
+        | hasWord name ["rocky", "Rocky Linux"] -> Rocky
+        -- https://github.com/void-linux/void-packages/blob/master/srcpkgs/base-files/files/os-release
+        | hasWord name ["void", "Void Linux"] -> Void
         | otherwise                -> UnknownLinux
   pure (distro, parsedVer)
  where
@@ -197,3 +209,155 @@ getLinuxDistro = do
   try_debian_version = do
     ver <- T.readFile debian_version
     pure (T.pack "debian", Just ver)
+
+
+getStackGhcBuilds :: (MonadReader env m, HasLog env, MonadIO m)
+                  => PlatformResult
+                  -> Excepts '[ParseError, NoCompatiblePlatform, DistroNotFound, ProcessError] m [String]
+getStackGhcBuilds PlatformResult{..} = do
+    case _platform of
+      Linux _ -> do
+        -- Some systems don't have ldconfig in the PATH, so make sure to look in
+        -- /sbin and /usr/sbin as well
+        sbinEnv <- liftIO $ addToPath sbinDirs False
+        ldConfig <- lift $ executeOut' "ldconfig" ["-p"] Nothing (Just sbinEnv)
+        firstWords <- case ldConfig of
+                        CapturedProcess ExitSuccess so _ ->
+                          pure . mapMaybe (listToMaybe . T.words) . T.lines . T.pack . stripNewlineEnd . T.unpack . decUTF8Safe' $ so
+                        CapturedProcess (ExitFailure _) _ _ ->
+                          -- throwE $ NonZeroExit c "ldconfig" ["-p" ]
+                          pure []
+        let checkLib :: (MonadReader env m, HasLog env, MonadIO m) => String -> m Bool
+            checkLib lib
+              | libT `elem` firstWords = do
+                  logDebug $ "Found shared library " <> libT <> " in 'ldconfig -p' output"
+                  pure True
+              | isWindows =
+                  -- Cannot parse /usr/lib on Windows
+                  pure False
+              | otherwise = hasMatches lib usrLibDirs
+              -- This is a workaround for the fact that libtinfo.so.x doesn't
+              -- appear in the 'ldconfig -p' output on Arch or Slackware even
+              -- when it exists. There doesn't seem to be an easy way to get the
+              -- true list of directories to scan for shared libs, but this
+              -- works for our particular cases.
+             where
+              libT = T.pack lib
+
+            hasMatches :: (MonadReader env m, HasLog env, MonadIO m) => String -> [FilePath] -> m Bool
+            hasMatches lib dirs = do
+              matches <- filterM (liftIO . doesFileExist . (</> lib)) dirs
+              case matches of
+                [] -> logDebug ("Did not find shared library " <> libT) >> pure False
+                (path:_) -> logDebug ("Found shared library " <> libT <> " in " <> T.pack path) >> pure True
+             where
+              libT = T.pack lib
+
+            getLibc6Version :: MonadIO m
+                            => Excepts '[ParseError, ProcessError] m Version
+            getLibc6Version = do
+              CapturedProcess{..} <- lift $ executeOut "ldd" ["--version"] Nothing
+              case _exitCode of
+                ExitSuccess -> either (throwE . ParseError . show) pure
+                                 . MP.parse lddVersion "" . T.pack . stripNewlineEnd . T.unpack . decUTF8Safe' $ _stdOut
+                ExitFailure c -> throwE $ NonZeroExit c "ldd" ["--version" ]
+
+            -- Assumes the first line of ldd has the format:
+            --
+            -- ldd (...) nn.nn
+            --
+            -- where nn.nn corresponds to the version of libc6.
+            lddVersion :: MP.Parsec Void Text Version
+            lddVersion = do
+              skipWhile (/= ')')
+              skip (== ')')
+              skipSpace
+              version'
+
+        hasMusl <- hasMatches relFileLibcMuslx86_64So1 libDirs
+        mLibc6Version <- veitherToEither <$> runE getLibc6Version
+        case mLibc6Version of
+          Right libc6Version -> logDebug $ "Found shared library libc6 in version: " <> prettyVer libc6Version
+          Left _ -> logDebug "Did not find a version of shared library libc6."
+        let hasLibc6_2_32 = either (const False) (>= [vver|2.32|]) mLibc6Version
+        hastinfo5 <- checkLib relFileLibtinfoSo5
+        hastinfo6 <- checkLib relFileLibtinfoSo6
+        hasncurses6 <- checkLib relFileLibncurseswSo6
+        hasgmp5 <- checkLib relFileLibgmpSo10
+        hasgmp4 <- checkLib relFileLibgmpSo3
+        let libComponents = if hasMusl
+              then
+                [ ["musl"] ]
+              else
+                concat
+                  [ if hastinfo6 && hasgmp5
+                    then
+                      if hasLibc6_2_32
+                      then [["tinfo6"]]
+                      else [["tinfo6-libc6-pre232"]]
+                    else [[]]
+                  , [ [] | hastinfo5 && hasgmp5 ]
+                  , [ ["ncurses6"] | hasncurses6 && hasgmp5 ]
+                  , [ ["gmp4"] | hasgmp4 ]
+                  ]
+        pure $ map
+          (\c -> case c of
+            [] -> []
+            _ -> L.intercalate "-" c)
+          libComponents
+      FreeBSD ->
+        case _distroVersion of
+          Just fVer
+            | fVer >= [vers|12|] -> pure []
+          _ -> pure ["ino64"]
+      Darwin  -> pure []
+      Windows -> pure []
+ where
+
+  relFileLibcMuslx86_64So1 :: FilePath
+  relFileLibcMuslx86_64So1 = "libc.musl-x86_64.so.1"
+  libDirs :: [FilePath]
+  libDirs = ["/lib", "/lib64"]
+  usrLibDirs :: [FilePath]
+  usrLibDirs = ["/usr/lib", "/usr/lib64"]
+  sbinDirs :: [FilePath]
+  sbinDirs = ["/sbin", "/usr/sbin"]
+  relFileLibtinfoSo5 :: FilePath
+  relFileLibtinfoSo5 = "libtinfo.so.5"
+  relFileLibtinfoSo6 :: FilePath
+  relFileLibtinfoSo6 = "libtinfo.so.6"
+  relFileLibncurseswSo6 :: FilePath
+  relFileLibncurseswSo6 = "libncursesw.so.6"
+  relFileLibgmpSo10 :: FilePath
+  relFileLibgmpSo10 = "libgmp.so.10"
+  relFileLibgmpSo3 :: FilePath
+  relFileLibgmpSo3 = "libgmp.so.3"
+
+getStackOSKey :: Monad m => PlatformRequest -> Excepts '[UnsupportedSetupCombo] m String
+getStackOSKey PlatformRequest { .. } =
+  case (_rArch, _rPlatform) of
+    (A_32   , Linux _) -> pure "linux32"
+    (A_64   , Linux _) -> pure "linux64"
+    (A_32   , Darwin ) -> pure "macosx"
+    (A_64   , Darwin ) -> pure "macosx"
+    (A_32   , FreeBSD) -> pure "freebsd32"
+    (A_64   , FreeBSD) -> pure "freebsd64"
+    (A_32   , Windows) -> pure "windows32"
+    (A_64   , Windows) -> pure "windows64"
+    (A_ARM  , Linux _) -> pure "linux-armv7"
+    (A_ARM64, Linux _) -> pure "linux-aarch64"
+    (A_Sparc, Linux _) -> pure "linux-sparc"
+    (A_ARM64, Darwin ) -> pure "macosx-aarch64"
+    (A_ARM64, FreeBSD) -> pure "freebsd-aarch64"
+    (arch', os') -> throwE $ UnsupportedSetupCombo arch' os'
+
+getStackPlatformKey :: (MonadReader env m, MonadFail m, HasLog env, MonadCatch m, MonadIO m)
+                    => PlatformRequest
+                    -> Excepts '[UnsupportedSetupCombo, ParseError, NoCompatiblePlatform, NoCompatibleArch, DistroNotFound, ProcessError] m [String]
+getStackPlatformKey pfreq@PlatformRequest{..} = do
+  osKey <- liftE  $ getStackOSKey pfreq
+  builds <- liftE $ getStackGhcBuilds (PlatformResult _rPlatform _rVersion)
+  let builds' = (\build -> if null build then osKey else osKey <> "-" <> build) <$> builds
+  logDebug $ "Potential GHC builds: " <> mconcat (L.intersperse ", " $ fmap T.pack builds')
+  pure builds'
+

lib/GHCup/Prelude.hs

@@ -43,6 +43,10 @@ import           Control.Monad.Reader
 import           Haskus.Utils.Variant.Excepts
 import           Text.PrettyPrint.HughesPJClass ( Pretty )
 import qualified Data.Text                     as T
+import System.Environment (getEnvironment)
+import qualified Data.Map.Strict               as Map
+import System.FilePath
+import Data.List (intercalate)
 
 
 
@@ -88,3 +92,25 @@ throwSomeE :: forall es' es a m. (Monad m, LiftVariant es' es) => V es' -> Excep
 {-# INLINABLE throwSomeE #-}
 throwSomeE = Excepts . pure . VLeft . liftVariant
 #endif
+
+addToPath :: [FilePath]
+          -> Bool         -- ^ if False will prepend
+          -> IO [(String, String)]
+addToPath paths append = do
+ cEnv <- getEnvironment
+ return $ addToPath' cEnv paths append
+
+addToPath' :: [(String, String)]
+          -> [FilePath]
+          -> Bool         -- ^ if False will prepend
+          -> [(String, String)]
+addToPath' cEnv' newPaths append =
+  let cEnv           = Map.fromList cEnv'
+      paths          = ["PATH", "Path"]
+      curPaths       = (\x -> maybe [] splitSearchPath (Map.lookup x cEnv)) =<< paths
+      {- HLINT ignore "Redundant bracket" -}
+      newPath        = intercalate [searchPathSeparator] (if append then (curPaths ++ newPaths) else (newPaths ++ curPaths))
+      envWithoutPath = foldr (\x y -> Map.delete x y) cEnv paths
+      pathVar        = if isWindows then "Path" else "PATH"
+      envWithNewPath = Map.toList $ Map.insert pathVar newPath envWithoutPath
+  in envWithNewPath

lib/GHCup/Prelude/File.hs

@@ -387,7 +387,7 @@ rmLink fp
 --
 -- This overwrites previously existing files.
 --
--- On windows, this requires that 'ensureGlobalTools' was run beforehand.
+-- On windows, this requires that 'ensureShimGen' was run beforehand.
 createLink :: ( MonadMask m
               , MonadThrow m
               , HasLog env

lib/GHCup/Prelude/Logger/Internal.hs

@@ -80,7 +80,7 @@ logInternal logLevel msg = do
         Info    -> style' "[ Info  ]"
         Warn    -> style' "[ Warn  ]"
         Error   -> style' "[ Error ]"
-  let strs = T.split (== '\n') msg
+  let strs = T.split (== '\n') . T.dropWhileEnd (`elem` ("\n\r" :: String)) $ msg
   let out = case strs of
               [] -> T.empty
               (x:xs) ->

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"
 
@@ -122,3 +120,17 @@ verP suffix = do
 
 pathSep :: MP.Parsec Void Text Char
 pathSep = MP.oneOf pathSeparators
+
+skipWhile :: (Char -> Bool) -> MP.Parsec Void Text ()
+skipWhile f = void $ MP.takeWhileP Nothing f
+
+skip :: (Char -> Bool) -> MP.Parsec Void Text ()
+skip f = void $ MP.satisfy f
+
+skipSpace :: MP.Parsec Void Text ()
+skipSpace = void $ MP.satisfy isSpace
+
+isSpace :: Char -> Bool
+isSpace c = (c == ' ') || ('\t' <= c && c <= '\r')
+{-# INLINE isSpace #-}
+

lib/GHCup/Prelude/Process.hs

@@ -11,6 +11,7 @@ Portability : portable
 -}
 module GHCup.Prelude.Process (
   executeOut,
+  executeOut',
   execLogged,
   exec,
   toProcessError,

lib/GHCup/Prelude/Process/Posix.hs

@@ -70,6 +70,16 @@ executeOut path args chdir = liftIO $ captureOutStreams $ do
   maybe (pure ()) changeWorkingDirectory chdir
   SPP.executeFile path True args Nothing
 
+executeOut' :: MonadIO m
+            => FilePath          -- ^ command as filename, e.g. 'ls'
+            -> [String]          -- ^ arguments to the command
+            -> Maybe FilePath    -- ^ chdir to this path
+            -> Maybe [(String, String)]
+            -> m CapturedProcess
+executeOut' path args chdir env = liftIO $ captureOutStreams $ do
+  maybe (pure ()) changeWorkingDirectory chdir
+  SPP.executeFile path True args env
+
 
 execLogged :: ( MonadReader env m
               , HasSettings env
@@ -169,7 +179,7 @@ execLogged exe args chdir lfile env = do
     overwriteNthLine n str = pos1 <> moveLineUp n <> clearLine <> str <> moveLineDown n <> pos1
 
     blue :: ByteString -> ByteString
-    blue bs 
+    blue bs
       | no_color = bs
       | otherwise = "\x1b[0;34m" <> bs <> "\x1b[0m"
 

lib/GHCup/Prelude/Process/Windows.hs

@@ -140,8 +140,16 @@ executeOut :: MonadIO m
            -> [String]          -- ^ arguments to the command
            -> Maybe FilePath    -- ^ chdir to this path
            -> m CapturedProcess
-executeOut path args chdir = do
-  cp <- createProcessWithMingwPath ((proc path args){ cwd = chdir })
+executeOut path args chdir = executeOut' path args chdir Nothing
+
+executeOut' :: MonadIO m
+            => FilePath          -- ^ command as filename, e.g. 'ls'
+            -> [String]          -- ^ arguments to the command
+            -> Maybe FilePath    -- ^ chdir to this path
+            -> Maybe [(String, String)]
+            -> m CapturedProcess
+executeOut' path args chdir env' = do
+  cp <- createProcessWithMingwPath ((proc path args){ cwd = chdir, env = env' })
   (exit, out, err) <- liftIO $ readCreateProcessWithExitCodeBS cp ""
   pure $ CapturedProcess exit out err
 

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

@@ -234,7 +234,7 @@ setStack ver = do
 
   liftIO (isShadowed stackbin) >>= \case
     Nothing -> pure ()
-    Just pa -> lift $ logWarn $ T.pack $ prettyHFError (ToolShadowed Cabal pa stackbin ver)
+    Just pa -> lift $ logWarn $ T.pack $ prettyHFError (ToolShadowed Stack pa stackbin ver)
 
   pure ()
 

lib/GHCup/Types.hs

@@ -22,10 +22,12 @@ module GHCup.Types
   ( module GHCup.Types
 #if defined(BRICK)
   , Key(..)
+  , Modifier(..)
 #endif
   )
   where
 
+import           GHCup.Types.Stack              ( SetupInfo )
 import {-# SOURCE #-} GHCup.Utils.Dirs          ( fromGHCupPath, GHCupPath )
 
 import           Control.DeepSeq                ( NFData, rnf )
@@ -39,14 +41,13 @@ import           Optics                         ( makeLenses )
 import           Text.PrettyPrint.HughesPJClass (Pretty, pPrint, text)
 import           URI.ByteString
 #if defined(BRICK)
-import           Graphics.Vty                   ( Key(..) )
+import           Graphics.Vty                   ( Key(..), Modifier(..) )
 #endif
 
 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
@@ -55,8 +56,15 @@ data Key = KEsc  | KChar Char | KBS | KEnter
          | KFun Int | KBackTab | KPrtScr | KPause | KIns
          | KHome | KPageUp | KDel | KEnd | KPageDown | KBegin | KMenu
     deriving (Eq,Show,Read,Ord,GHC.Generic)
+
+data Modifier = MShift | MCtrl | MMeta | MAlt
+    deriving (Eq,Show,Read,Ord,GHC.Generic)
 #endif
 
+data KeyCombination = KeyCombination { key :: Key, mods :: [Modifier] }
+    deriving (Eq,Show,Read,Ord,GHC.Generic)
+
+
 
     --------------------
     --[ GHCInfo Tree ]--
@@ -66,7 +74,7 @@ data Key = KEsc  | KChar Char | KBS | KEnter
 data GHCupInfo = GHCupInfo
   { _toolRequirements :: ToolRequirements
   , _ghcupDownloads   :: GHCupDownloads
-  , _globalTools      :: Map GlobalTool DownloadInfo
+  , _metadataUpdate   :: Maybe URI
   }
   deriving (Show, GHC.Generic, Eq)
 
@@ -128,14 +136,6 @@ instance Pretty Tool where
 
 instance NFData Tool
 
-data GlobalTool = ShimGen
-  deriving (Eq, GHC.Generic, Ord, Show, Enum, Bounded)
-
-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.
@@ -193,7 +193,7 @@ instance Pretty Tag where
   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 LatestNightly      = text "latest-prerelease"
   pPrint Old                = mempty
 
 data Architecture = A_64
@@ -249,13 +249,18 @@ data LinuxDistro = Debian
                  | RedHat
                  | Alpine
                  | AmazonLinux
+                 | Rocky
+                 | Void
                  -- rolling
                  | Gentoo
                  | Exherbo
                  -- not known
                  | UnknownLinux
                  -- ^ must exit
-  deriving (Eq, GHC.Generic, Ord, Show)
+  deriving (Eq, GHC.Generic, Ord, Show, Enum, Bounded)
+
+allDistros :: [LinuxDistro]
+allDistros = enumFromTo minBound maxBound
 
 instance NFData LinuxDistro
 
@@ -268,6 +273,8 @@ distroToString CentOS = "centos"
 distroToString RedHat = "redhat"
 distroToString Alpine = "alpine"
 distroToString AmazonLinux = "amazon"
+distroToString Rocky = "rocky"
+distroToString Void = "void"
 distroToString Gentoo = "gentoo"
 distroToString Exherbo = "exherbo"
 distroToString UnknownLinux = "unknown"
@@ -327,15 +334,41 @@ instance Pretty TarDir where
 
 -- | Where to fetch GHCupDownloads from.
 data URLSource = GHCupURL
-               | OwnSource [Either GHCupInfo URI] -- ^ complete source list
-               | OwnSpec GHCupInfo
-               | AddSource [Either GHCupInfo URI] -- ^ merge with GHCupURL
-               deriving (GHC.Generic, Show)
+               | StackSetupURL
+               | OwnSource     [Either (Either GHCupInfo SetupInfo) URI] -- ^ complete source list
+               | OwnSpec               (Either GHCupInfo SetupInfo)
+               | AddSource     [Either (Either GHCupInfo SetupInfo) URI] -- ^ merge with GHCupURL
+               | SimpleList    [NewURLSource]
+               deriving (Eq, GHC.Generic, Show)
+
+data NewURLSource = NewGHCupURL
+                  | NewStackSetupURL
+                  | NewGHCupInfo     GHCupInfo
+                  | NewSetupInfo     SetupInfo
+                  | NewURI           URI
+               deriving (Eq, GHC.Generic, Show)
+
+instance NFData NewURLSource
+
+fromURLSource :: URLSource -> [NewURLSource]
+fromURLSource GHCupURL              = [NewGHCupURL]
+fromURLSource StackSetupURL         = [NewStackSetupURL]
+fromURLSource (OwnSource arr)       = convert' <$> arr
+fromURLSource (AddSource arr)       = NewGHCupURL:(convert' <$> arr)
+fromURLSource (SimpleList arr)      = arr
+fromURLSource (OwnSpec (Left gi))   = [NewGHCupInfo gi]
+fromURLSource (OwnSpec (Right si)) = [NewSetupInfo si]
+
+convert' :: Either (Either GHCupInfo SetupInfo) URI -> NewURLSource
+convert' (Left (Left gi))  = NewGHCupInfo gi
+convert' (Left (Right si)) = NewSetupInfo si
+convert' (Right uri)       = NewURI uri
 
 instance NFData URLSource
 instance NFData (URIRef Absolute) where
   rnf (URI !_ !_ !_ !_ !_) = ()
 
+
 data MetaMode = Strict
               | Lax
   deriving (Show, Read, Eq, GHC.Generic)
@@ -357,7 +390,7 @@ data UserSettings = UserSettings
   , uPlatformOverride :: Maybe PlatformRequest
   , uMirrors     :: Maybe DownloadMirrors
   }
-  deriving (Show, GHC.Generic)
+  deriving (Show, GHC.Generic, Eq)
 
 defaultUserSettings :: UserSettings
 defaultUserSettings = UserSettings Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing Nothing
@@ -389,7 +422,6 @@ fromSettings Settings{..} (Just KeyBindings{..}) =
             , kSet          = Just bSet
             , kChangelog    = Just bChangelog
             , kShowAll      = Just bShowAllVersions
-            , kShowAllTools = Just bShowAllTools
             }
   in UserSettings {
       uCache = Just cache
@@ -408,47 +440,48 @@ fromSettings Settings{..} (Just KeyBindings{..}) =
   }
 
 data UserKeyBindings = UserKeyBindings
-  { kUp        :: Maybe Key
-  , kDown      :: Maybe Key
-  , kQuit      :: Maybe Key
-  , kInstall   :: Maybe Key
-  , kUninstall :: Maybe Key
-  , kSet       :: Maybe Key
-  , kChangelog :: Maybe Key
-  , kShowAll   :: Maybe Key
-  , kShowAllTools :: Maybe Key
+  { kUp           :: Maybe KeyCombination
+  , kDown         :: Maybe KeyCombination
+  , kQuit         :: Maybe KeyCombination
+  , kInstall      :: Maybe KeyCombination
+  , kUninstall    :: Maybe KeyCombination
+  , kSet          :: Maybe KeyCombination
+  , kChangelog    :: Maybe KeyCombination
+  , kShowAll      :: Maybe KeyCombination
   }
-  deriving (Show, GHC.Generic)
+  deriving (Show, GHC.Generic, Eq)
 
 data KeyBindings = KeyBindings
-  { bUp        :: Key
-  , bDown      :: Key
-  , bQuit      :: Key
-  , bInstall   :: Key
-  , bUninstall :: Key
-  , bSet       :: Key
-  , bChangelog :: Key
-  , bShowAllVersions :: Key
-  , bShowAllTools :: Key
+  { bUp              :: KeyCombination
+  , bDown            :: KeyCombination
+  , bQuit            :: KeyCombination
+  , bInstall         :: KeyCombination
+  , bUninstall       :: KeyCombination
+  , bSet             :: KeyCombination
+  , bChangelog       :: KeyCombination
+  , bShowAllVersions :: KeyCombination
   }
   deriving (Show, GHC.Generic)
 
 instance NFData KeyBindings
-#if defined(IS_WINDOWS) || !defined(BRICK)
+#if !defined(BRICK)
 instance NFData Key
+
+instance NFData Modifier
+
 #endif
+instance NFData KeyCombination
 
 defaultKeyBindings :: KeyBindings
 defaultKeyBindings = KeyBindings
-  { bUp = KUp
-  , bDown = KDown
-  , bQuit = KChar 'q'
-  , bInstall = KChar 'i'
-  , bUninstall = KChar 'u'
-  , bSet = KChar 's'
-  , bChangelog = KChar 'c'
-  , bShowAllVersions = KChar 'a'
-  , bShowAllTools = KChar 't'
+  { bUp              = KeyCombination { key = KUp      , mods = [] }
+  , bDown            = KeyCombination { key = KDown    , mods = [] }
+  , bQuit            = KeyCombination { key = KChar 'q', mods = [] }
+  , bInstall         = KeyCombination { key = KChar 'i', mods = [] }
+  , bUninstall       = KeyCombination { key = KChar 'u', mods = [] }
+  , bSet             = KeyCombination { key = KChar 's', mods = [] }
+  , bChangelog       = KeyCombination { key = KChar 'c', mods = [] }
+  , bShowAllVersions = KeyCombination { key = KChar 'a', mods = [] }
   }
 
 data AppState = AppState
@@ -742,3 +775,4 @@ instance Pretty ToolVersion where
 data BuildSystem = Hadrian
                  | Make
   deriving (Show, Eq)
+

lib/GHCup/Types/JSON.hs

@@ -22,7 +22,9 @@ Portability : portable
 module GHCup.Types.JSON where
 
 import           GHCup.Types
+import           GHCup.Types.Stack (SetupInfo)
 import           GHCup.Types.JSON.Utils
+import           GHCup.Types.JSON.Versions ()
 import           GHCup.Prelude.MegaParsec
 
 import           Control.Applicative            ( (<|>) )
@@ -31,7 +33,9 @@ import           Data.Aeson.TH
 import           Data.Aeson.Types        hiding (Key)
 import           Data.ByteString                ( ByteString )
 import           Data.List.NonEmpty             ( NonEmpty(..) )
+import           Data.Maybe
 import           Data.Text.Encoding            as E
+import           Data.Foldable
 import           Data.Versions
 import           Data.Void
 import           URI.ByteString
@@ -48,13 +52,13 @@ 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
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''KeepDirs
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''Downloader
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''GPGSetting
@@ -111,34 +115,6 @@ instance FromJSONKey GHCTargetVersion where
     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 GHCTargetVersion (FromJSON)" <> show e
-
-instance ToJSONKey Versioning where
-  toJSONKey = toJSONKeyText $ \x -> prettyV x
-
-instance FromJSONKey Versioning where
-  fromJSONKey = FromJSONKeyTextParser $ \t -> case versioning t of
-    Right x -> pure x
-    Left  e -> fail $ "Failure in Versioning (FromJSONKey)" <> show e
-
-instance ToJSONKey (Maybe Versioning) where
-  toJSONKey = toJSONKeyText $ \case
-    Just x  -> prettyV x
-    Nothing -> T.pack "unknown_versioning"
-
-instance FromJSONKey (Maybe Versioning) where
-  fromJSONKey = FromJSONKeyTextParser $ \t ->
-    if t == T.pack "unknown_versioning" then pure Nothing else just t
-   where
-    just t = case versioning t of
-      Right x -> pure $ Just x
-      Left  e -> fail $ "Failure in (Maybe Versioning) (FromJSONKey)" <> show e
 
 instance ToJSONKey Platform where
   toJSONKey = toJSONKeyText $ \case
@@ -175,55 +151,12 @@ instance ToJSONKey Architecture where
 instance FromJSONKey Architecture where
   fromJSONKey = genericFromJSONKey defaultJSONKeyOptions
 
-instance ToJSONKey (Maybe Version) where
-  toJSONKey = toJSONKeyText $ \case
-    Just x  -> prettyVer x
-    Nothing -> T.pack "unknown_version"
-
-instance FromJSONKey (Maybe Version) where
-  fromJSONKey = FromJSONKeyTextParser $ \t ->
-    if t == T.pack "unknown_version" then pure Nothing else just t
-   where
-    just t = case version t of
-      Right x -> pure $ Just x
-      Left  e -> fail $ "Failure in (Maybe Version) (FromJSONKey)" <> show e
-
-instance ToJSON Version where
-  toJSON = toJSON . prettyVer
-
-instance FromJSON Version where
-  parseJSON = withText "Version" $ \t -> case version t of
-    Right x -> pure x
-    Left  e -> fail $ "Failure in Version (FromJSON)" <> show e
-
-instance ToJSONKey Version where
-  toJSONKey = toJSONKeyText $ \x -> prettyVer x
-
-instance FromJSONKey Version where
-  fromJSONKey = FromJSONKeyTextParser $ \t -> case version t of
-    Right x -> pure x
-    Left  e -> fail $ "Failure in Version (FromJSONKey)" <> show e
-
-instance ToJSON PVP where
-  toJSON = toJSON . prettyPVP
-
-instance FromJSON PVP where
-  parseJSON = withText "PVP" $ \t -> case pvp t of
-    Right x -> pure x
-    Left  e -> fail $ "Failure in PVP (FromJSON)" <> show e
-
 instance ToJSONKey Tool where
   toJSONKey = genericToJSONKey defaultJSONKeyOptions
 
 instance FromJSONKey Tool where
   fromJSONKey = genericFromJSONKey defaultJSONKeyOptions
 
-instance ToJSONKey GlobalTool where
-  toJSONKey = genericToJSONKey defaultJSONKeyOptions
-
-instance FromJSONKey GlobalTool where
-  fromJSONKey = genericFromJSONKey defaultJSONKeyOptions
-
 instance ToJSON TarDir where
   toJSON (RealDir  p) = toJSON p
   toJSON (RegexDir r) = object ["RegexDir" .= r]
@@ -341,33 +274,64 @@ instance FromJSONKey (Maybe VersionRange)  where
       Left  e -> fail $ "Failure in (Maybe VersionRange) (FromJSONKey)" <> MP.errorBundlePretty e
 
 
-
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''Requirements
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''DownloadInfo
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''VersionInfo
-deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''GHCupInfo
-deriveToJSON defaultOptions { sumEncoding = ObjectWithSingleField } ''URLSource
+
+instance FromJSON GHCupInfo where
+  parseJSON = withObject "GHCupInfo" $ \o -> do
+    toolRequirements' <- o .:? "toolRequirements"
+    metadataUpdate    <- o .:? "metadataUpdate"
+    ghcupDownloads'   <- o .:  "ghcupDownloads"
+    pure (GHCupInfo (fromMaybe mempty toolRequirements') ghcupDownloads' metadataUpdate)
+
+deriveToJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''GHCupInfo
+
+instance ToJSON NewURLSource where
+  toJSON NewGHCupURL       = String "GHCupURL"
+  toJSON NewStackSetupURL  = String "StackSetupURL"
+  toJSON (NewGHCupInfo gi) = object [ "ghcup-info" .= gi ]
+  toJSON (NewSetupInfo si) = object [ "setup-info" .= si ]
+  toJSON (NewURI uri)      = toJSON uri
+
+instance ToJSON URLSource where
+  toJSON = toJSON . fromURLSource
+
 deriveJSON defaultOptions { sumEncoding = ObjectWithSingleField } ''Key
-deriveJSON defaultOptions { fieldLabelModifier = \str' -> maybe str' T.unpack . T.stripPrefix (T.pack "k-") . T.pack . kebab $ str' } ''UserKeyBindings
+deriveJSON defaultOptions { sumEncoding = ObjectWithSingleField } ''Modifier
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel, unwrapUnaryRecords = True } ''Port
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel, unwrapUnaryRecords = True } ''Host
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''UserInfo
 deriveJSON defaultOptions { fieldLabelModifier = \str' -> maybe str' (T.unpack . T.toLower) . T.stripPrefix (T.pack "authority") . T.pack $ str' } ''Authority
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''DownloadMirror
 deriveJSON defaultOptions { fieldLabelModifier = removeLensFieldLabel } ''DownloadMirrors
-deriveToJSON defaultOptions { fieldLabelModifier = kebab } ''Settings
-deriveToJSON defaultOptions { fieldLabelModifier = drop 2 . kebab } ''KeyBindings -- move under key-bindings key
 
 instance FromJSON URLSource where
   parseJSON v =
         parseGHCupURL v
+    <|> parseStackURL v
     <|> parseOwnSourceLegacy v
     <|> parseOwnSourceNew1 v
     <|> parseOwnSourceNew2 v
     <|> parseOwnSpec v
     <|> legacyParseAddSource v
     <|> newParseAddSource v
+    -- new since Stack SetupInfo
+    <|> parseOwnSpecNew v
+    <|> parseOwnSourceNew3 v
+    <|> newParseAddSource2 v
+    -- more lenient versions
+    <|> parseOwnSpecLenient v
+    <|> parseOwnSourceLenient v
+    <|> parseAddSourceLenient v
+    -- simplified list
+    <|> parseNewUrlSource v
+    <|> parseNewUrlSource' v
    where
+    convert'' :: Either GHCupInfo URI -> Either (Either GHCupInfo SetupInfo) URI
+    convert'' (Left gi)  = Left (Left gi)
+    convert'' (Right uri) = Right uri
+
     parseOwnSourceLegacy = withObject "URLSource" $ \o -> do
       r :: URI <- o .: "OwnSource"
       pure (OwnSource [Right r])
@@ -376,18 +340,100 @@ instance FromJSON URLSource where
       pure (OwnSource (fmap Right r))
     parseOwnSourceNew2 = withObject "URLSource" $ \o -> do
       r :: [Either GHCupInfo URI] <- o .: "OwnSource"
-      pure (OwnSource r)
+      pure (OwnSource (convert'' <$> r))
     parseOwnSpec = withObject "URLSource" $ \o -> do
       r :: GHCupInfo <- o .: "OwnSpec"
-      pure (OwnSpec r)
+      pure (OwnSpec $ Left r)
     parseGHCupURL = withObject "URLSource" $ \o -> do
       _ :: [Value] <- o .: "GHCupURL"
       pure GHCupURL
+    parseStackURL = withObject "URLSource" $ \o -> do
+      _ :: [Value] <- o .: "StackSetupURL"
+      pure StackSetupURL
     legacyParseAddSource = withObject "URLSource" $ \o -> do
       r :: Either GHCupInfo URI <- o .: "AddSource"
-      pure (AddSource [r])
+      pure (AddSource [convert'' r])
     newParseAddSource = withObject "URLSource" $ \o -> do
       r :: [Either GHCupInfo URI] <- o .: "AddSource"
+      pure (AddSource (convert'' <$> r))
+
+    -- new since Stack SetupInfo
+    parseOwnSpecNew = withObject "URLSource" $ \o -> do
+      r :: Either GHCupInfo SetupInfo <- o .: "OwnSpec"
+      pure (OwnSpec r)
+    parseOwnSourceNew3 = withObject "URLSource" $ \o -> do
+      r :: [Either (Either GHCupInfo SetupInfo) URI] <- o .: "OwnSource"
+      pure (OwnSource r)
+    newParseAddSource2 = withObject "URLSource" $ \o -> do
+      r :: [Either (Either GHCupInfo SetupInfo) URI] <- o .: "AddSource"
       pure (AddSource r)
 
+    -- more lenient versions
+    parseOwnSpecLenient = withObject "URLSource" $ \o -> do
+      spec :: Object <- o .: "OwnSpec"
+      OwnSpec <$> lenientInfoParser spec
+    parseOwnSourceLenient = withObject "URLSource" $ \o -> do
+      mown :: Array <- o .: "OwnSource"
+      OwnSource . toList <$> mapM lenientInfoUriParser mown
+    parseAddSourceLenient = withObject "URLSource" $ \o -> do
+      madd :: Array <- o .: "AddSource"
+      AddSource . toList <$> mapM lenientInfoUriParser madd
+
+    -- simplified
+    parseNewUrlSource = withArray "URLSource" $ \a -> do
+      SimpleList . toList <$> mapM parseJSON a
+    parseNewUrlSource' v' = SimpleList .(:[]) <$> parseJSON v'
+
+
+lenientInfoUriParser :: Value -> Parser (Either (Either GHCupInfo SetupInfo) URI)
+lenientInfoUriParser (Object o) = Left <$> lenientInfoParser o
+lenientInfoUriParser v@(String _) = Right <$> parseJSON v
+lenientInfoUriParser _ = fail "Unexpected json in lenientInfoUriParser"
+
+
+lenientInfoParser :: Object -> Parser (Either GHCupInfo SetupInfo)
+lenientInfoParser o = do
+  setup_info :: Maybe Object <- o .:? "setup-info"
+  case setup_info of
+    Nothing -> do
+      r <- parseJSON (Object o)
+      pure $ Left r
+    Just setup_info' -> do
+      r <- parseJSON (Object setup_info')
+      pure $ Right r
+
+instance FromJSON NewURLSource where
+  parseJSON v = uri v <|> url v <|> gi v <|> si v
+   where
+    uri = withText "NewURLSource" $ \t -> NewURI <$> parseJSON (String t)
+    url = withText "NewURLSource" $ \t -> case T.unpack t of
+                                            "GHCupURL" -> pure NewGHCupURL
+                                            "StackSetupURL" -> pure NewStackSetupURL
+                                            t' -> fail $ "Unexpected text value in NewURLSource: " <> t'
+    gi = withObject "NewURLSource" $ \o -> do
+       ginfo :: GHCupInfo <- o .: "ghcup-info"
+       pure $ NewGHCupInfo ginfo
+
+    si = withObject "NewURLSource" $ \o -> do
+       sinfo :: SetupInfo <- o .: "setup-info"
+       pure $ NewSetupInfo sinfo
+
+
+instance FromJSON KeyCombination where
+  parseJSON v = proper v <|> simple v
+   where
+    simple = withObject "KeyCombination" $ \o -> do
+      k <- parseJSON (Object o)
+      pure (KeyCombination k [])
+    proper = withObject "KeyCombination" $ \o -> do
+      k <- o .: "Key"
+      m <- o .: "Mods"
+      pure $ KeyCombination k m
+
+instance ToJSON KeyCombination where
+  toJSON (KeyCombination k m) = object ["Key" .= k, "Mods" .= m]
+
+deriveToJSON defaultOptions { fieldLabelModifier = drop 2 . kebab } ''KeyBindings -- move under key-bindings key
+deriveJSON defaultOptions { fieldLabelModifier = \str' -> maybe str' T.unpack . T.stripPrefix (T.pack "k-") . T.pack . kebab $ str' } ''UserKeyBindings
 deriveJSON defaultOptions { fieldLabelModifier = \str' -> maybe str' T.unpack . T.stripPrefix (T.pack "u-") . T.pack . kebab $ str' } ''UserSettings
+deriveToJSON defaultOptions { fieldLabelModifier = kebab } ''Settings

lib/GHCup/Types/JSON/Versions.hs

@@ -0,0 +1,90 @@
+{-# OPTIONS_GHC -Wno-orphans #-}
+
+{-# LANGUAGE DataKinds             #-}
+{-# LANGUAGE FlexibleContexts      #-}
+{-# LANGUAGE FlexibleInstances     #-}
+{-# LANGUAGE MultiParamTypeClasses #-}
+{-# LANGUAGE TypeFamilies          #-}
+
+{-|
+Module      : GHCup.Types.JSON.Versions
+Description : GHCup Version JSON types/instances
+Copyright   : (c) Julian Ospald, 2020
+License     : LGPL-3.0
+Maintainer  : hasufell@hasufell.de
+Stability   : experimental
+Portability : portable
+-}
+module GHCup.Types.JSON.Versions where
+
+import           Data.Aeson              hiding (Key)
+import           Data.Aeson.Types        hiding (Key)
+import           Data.Versions
+
+import qualified Data.Text                     as T
+
+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 GHCTargetVersion (FromJSON)" <> show e
+
+instance ToJSONKey Versioning where
+  toJSONKey = toJSONKeyText $ \x -> prettyV x
+
+instance FromJSONKey Versioning where
+  fromJSONKey = FromJSONKeyTextParser $ \t -> case versioning t of
+    Right x -> pure x
+    Left  e -> fail $ "Failure in Versioning (FromJSONKey)" <> show e
+
+instance ToJSONKey (Maybe Versioning) where
+  toJSONKey = toJSONKeyText $ \case
+    Just x  -> prettyV x
+    Nothing -> T.pack "unknown_versioning"
+
+instance FromJSONKey (Maybe Versioning) where
+  fromJSONKey = FromJSONKeyTextParser $ \t ->
+    if t == T.pack "unknown_versioning" then pure Nothing else just t
+   where
+    just t = case versioning t of
+      Right x -> pure $ Just x
+      Left  e -> fail $ "Failure in (Maybe Versioning) (FromJSONKey)" <> show e
+
+instance ToJSONKey (Maybe Version) where
+  toJSONKey = toJSONKeyText $ \case
+    Just x  -> prettyVer x
+    Nothing -> T.pack "unknown_version"
+
+instance FromJSONKey (Maybe Version) where
+  fromJSONKey = FromJSONKeyTextParser $ \t ->
+    if t == T.pack "unknown_version" then pure Nothing else just t
+   where
+    just t = case version t of
+      Right x -> pure $ Just x
+      Left  e -> fail $ "Failure in (Maybe Version) (FromJSONKey)" <> show e
+
+instance ToJSON Version where
+  toJSON = toJSON . prettyVer
+
+instance FromJSON Version where
+  parseJSON = withText "Version" $ \t -> case version t of
+    Right x -> pure x
+    Left  e -> fail $ "Failure in Version (FromJSON)" <> show e
+
+instance ToJSONKey Version where
+  toJSONKey = toJSONKeyText $ \x -> prettyVer x
+
+instance FromJSONKey Version where
+  fromJSONKey = FromJSONKeyTextParser $ \t -> case version t of
+    Right x -> pure x
+    Left  e -> fail $ "Failure in Version (FromJSONKey)" <> show e
+
+instance ToJSON PVP where
+  toJSON = toJSON . prettyPVP
+
+instance FromJSON PVP where
+  parseJSON = withText "PVP" $ \t -> case pvp t of
+    Right x -> pure x
+    Left  e -> fail $ "Failure in PVP (FromJSON)" <> show e

lib/GHCup/Types/Stack.hs

@@ -0,0 +1,180 @@
+{-# OPTIONS_GHC -Wno-orphans #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE RecordWildCards #-}
+{-# LANGUAGE FlexibleInstances #-}
+
+{-|
+Module      : GHCup.Types.Stack
+Description : GHCup types.Stack
+Copyright   : (c) Julian Ospald, 2023
+License     : LGPL-3.0
+Maintainer  : hasufell@hasufell.de
+Stability   : experimental
+Portability : portable
+-}
+module GHCup.Types.Stack where
+
+import           GHCup.Types.JSON.Versions ()
+
+import           Control.Applicative
+import           Control.DeepSeq                ( NFData )
+import           Data.ByteString
+import           Data.Aeson
+import           Data.Aeson.Types
+import           Data.Map.Strict                ( Map )
+import           Data.Text                      ( Text )
+import           Data.Text.Encoding
+import           Data.Versions
+
+import qualified Data.Map as Map
+import qualified GHC.Generics                  as GHC
+
+
+    --------------------------------------
+    --[ Stack download info copy pasta ]--
+    --------------------------------------
+
+data SetupInfo = SetupInfo
+  { siSevenzExe :: Maybe DownloadInfo
+  , siSevenzDll :: Maybe DownloadInfo
+  , siMsys2     :: Map Text VersionedDownloadInfo
+  , siGHCs      :: Map Text (Map Version GHCDownloadInfo)
+  , siStack     :: Map Text (Map Version DownloadInfo)
+  }
+  deriving (Show, Eq, GHC.Generic)
+
+instance NFData SetupInfo
+
+instance FromJSON SetupInfo where
+  parseJSON = withObject "SetupInfo" $ \o -> do
+    siSevenzExe <- o .:? "sevenzexe-info"
+    siSevenzDll <- o .:? "sevenzdll-info"
+    siMsys2     <- o .:? "msys2"          .!= mempty
+    siGHCs      <- o .: "ghc"
+    siStack     <- o .:? "stack"          .!= mempty
+    pure SetupInfo {..}
+
+instance ToJSON SetupInfo where
+  toJSON (SetupInfo {..}) = object [ "sevenzexe-info" .= siSevenzExe
+                                   , "sevenzdll-info" .= siSevenzDll
+                                   , "msys2"          .= siMsys2
+                                   , "ghc"            .= siGHCs
+                                   , "stack"          .= siStack
+                                   ]
+
+-- | For the @siGHCs@ field maps are deeply merged. For all fields the values
+-- from the first @SetupInfo@ win.
+instance Semigroup SetupInfo where
+  l <> r =
+    SetupInfo
+    { siSevenzExe = siSevenzExe l <|> siSevenzExe r
+    , siSevenzDll = siSevenzDll l <|> siSevenzDll r
+    , siMsys2     = siMsys2 l <> siMsys2 r
+    , siGHCs      = Map.unionWith (<>) (siGHCs l) (siGHCs r)
+    , siStack     = Map.unionWith (<>) (siStack l) (siStack r) }
+
+instance Monoid SetupInfo where
+  mempty =
+    SetupInfo
+    { siSevenzExe = Nothing
+    , siSevenzDll = Nothing
+    , siMsys2     = Map.empty
+    , siGHCs      = Map.empty
+    , siStack     = Map.empty
+    }
+  mappend = (<>)
+
+-- | Build of the compiler distribution (e.g. standard, gmp4, tinfo6)
+-- | Information for a file to download.
+data DownloadInfo = DownloadInfo
+  { downloadInfoUrl           :: Text
+    -- ^ URL or absolute file path
+  , downloadInfoContentLength :: Maybe Int
+  , downloadInfoSha1          :: Maybe ByteString
+  , downloadInfoSha256        :: Maybe ByteString
+  }
+  deriving (Show, Eq, GHC.Generic)
+
+instance ToJSON DownloadInfo where
+  toJSON (DownloadInfo {..}) = object [ "url"            .= downloadInfoUrl
+                                      , "content-length" .= downloadInfoContentLength
+                                      , "sha1"           .= (decodeUtf8 <$> downloadInfoSha1)
+                                      , "sha256"         .= (decodeUtf8 <$> downloadInfoSha256)
+                                      ]
+
+instance NFData DownloadInfo
+
+instance FromJSON DownloadInfo where
+  parseJSON = withObject "DownloadInfo" parseDownloadInfoFromObject
+
+-- | Parse JSON in existing object for 'DownloadInfo'
+parseDownloadInfoFromObject :: Object -> Parser DownloadInfo
+parseDownloadInfoFromObject o = do
+  url           <- o .: "url"
+  contentLength <- o .:? "content-length"
+  sha1TextMay   <- o .:? "sha1"
+  sha256TextMay <- o .:? "sha256"
+  pure
+    DownloadInfo
+    { downloadInfoUrl           = url
+    , downloadInfoContentLength = contentLength
+    , downloadInfoSha1          = fmap encodeUtf8 sha1TextMay
+    , downloadInfoSha256        = fmap encodeUtf8 sha256TextMay
+    }
+
+data VersionedDownloadInfo = VersionedDownloadInfo
+  { vdiVersion      :: Version
+  , vdiDownloadInfo :: DownloadInfo
+  }
+  deriving (Show, Eq, GHC.Generic)
+
+instance ToJSON VersionedDownloadInfo where
+  toJSON (VersionedDownloadInfo {vdiDownloadInfo = DownloadInfo{..}, ..})
+    = object [ "version"        .= vdiVersion
+             , "url"            .= downloadInfoUrl
+             , "content-length" .= downloadInfoContentLength
+             , "sha1"           .= (decodeUtf8 <$> downloadInfoSha1)
+             , "sha256"         .= (decodeUtf8 <$> downloadInfoSha256)
+             ]
+
+instance NFData VersionedDownloadInfo
+
+instance FromJSON VersionedDownloadInfo where
+  parseJSON = withObject "VersionedDownloadInfo" $ \o -> do
+    ver'         <- o .: "version"
+    downloadInfo <- parseDownloadInfoFromObject o
+    pure VersionedDownloadInfo
+      { vdiVersion      = ver'
+      , vdiDownloadInfo = downloadInfo
+      }
+
+data GHCDownloadInfo = GHCDownloadInfo
+  { gdiConfigureOpts :: [Text]
+  , gdiConfigureEnv  :: Map Text Text
+  , gdiDownloadInfo  :: DownloadInfo
+  }
+  deriving (Show, Eq, GHC.Generic)
+
+instance NFData GHCDownloadInfo
+
+instance ToJSON GHCDownloadInfo where
+  toJSON (GHCDownloadInfo {gdiDownloadInfo = DownloadInfo {..}, ..})
+    = object [ "configure-opts" .= gdiConfigureOpts
+             , "configure-env"  .= gdiConfigureEnv
+             , "url"            .= downloadInfoUrl
+             , "content-length" .= downloadInfoContentLength
+             , "sha1"           .= (decodeUtf8 <$> downloadInfoSha1)
+             , "sha256"         .= (decodeUtf8 <$> downloadInfoSha256)
+             ]
+
+instance FromJSON GHCDownloadInfo where
+  parseJSON = withObject "GHCDownloadInfo" $ \o -> do
+    configureOpts <- o .:? "configure-opts" .!= mempty
+    configureEnv  <- o .:? "configure-env"  .!= mempty
+    downloadInfo  <- parseDownloadInfoFromObject o
+    pure GHCDownloadInfo
+      { gdiConfigureOpts = configureOpts
+      , gdiConfigureEnv  = configureEnv
+      , gdiDownloadInfo  = downloadInfo
+      }
+

lib/GHCup/Utils.hs

@@ -49,7 +49,6 @@ import           GHCup.Prelude.Logger.Internal
 import           GHCup.Prelude.MegaParsec
 import           GHCup.Prelude.Process
 import           GHCup.Prelude.String.QQ
-
 import           Codec.Archive           hiding ( Directory )
 import           Control.Applicative
 import           Control.Exception.Safe
@@ -90,9 +89,9 @@ import qualified Data.Text.Encoding            as E
 import qualified Text.Megaparsec               as MP
 import qualified Data.List.NonEmpty            as NE
 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)
 
 
@@ -119,11 +118,11 @@ import Data.Time (Day(..), diffDays, addDays)
 -- >>> 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
 
 
 
@@ -369,7 +368,9 @@ cabalSet = do
   handleIO' NoSuchThing (\_ -> pure Nothing) $ do
     broken <- liftIO $ isBrokenSymlink cabalbin
     if broken
-      then pure Nothing
+      then do
+        logWarn $ "Broken symlink at " <> T.pack cabalbin
+        pure Nothing
       else do
         link <- liftIO
           $ handleIO' InvalidArgument
@@ -466,7 +467,9 @@ stackSet = do
   handleIO' NoSuchThing (\_ -> pure Nothing) $ do
     broken <- liftIO $ isBrokenSymlink stackBin
     if broken
-      then pure Nothing
+      then do
+        logWarn $ "Broken symlink at " <> T.pack stackBin
+        pure Nothing
       else do
         link <- liftIO
           $ handleIO' InvalidArgument
@@ -520,15 +523,17 @@ isLegacyHLS ver = do
 
 
 -- Return the currently set hls version, if any.
-hlsSet :: (MonadReader env m, HasDirs env, MonadIO m, MonadThrow m, MonadCatch m) => m (Maybe Version)
+hlsSet :: (HasLog env, MonadReader env m, HasDirs env, MonadIO m, MonadThrow m, MonadCatch m) => m (Maybe Version)
 hlsSet = do
   Dirs {..}  <- getDirs
   let hlsBin = binDir </> "haskell-language-server-wrapper" <> exeExt
 
-  liftIO $ handleIO' NoSuchThing (\_ -> pure Nothing) $ do
-    broken <- isBrokenSymlink hlsBin
+  handleIO' NoSuchThing (\_ -> pure Nothing) $ do
+    broken <- liftIO $ isBrokenSymlink hlsBin
     if broken
-      then pure Nothing
+      then do
+        logWarn $ "Broken symlink at " <> T.pack hlsBin
+        pure Nothing
       else do
         link <- liftIO $ getLinkTarget hlsBin
         Just <$> linkVersion link
@@ -556,6 +561,7 @@ hlsSet = do
 -- | Return the GHC versions the currently selected HLS supports.
 hlsGHCVersions :: ( MonadReader env m
                   , HasDirs env
+                  , HasLog env
                   , MonadIO m
                   , MonadThrow m
                   , MonadCatch m
@@ -687,10 +693,8 @@ 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
@@ -732,7 +736,7 @@ 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
@@ -758,11 +762,11 @@ 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
@@ -1033,7 +1037,7 @@ 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
 
@@ -1081,7 +1085,7 @@ darwinNotarization :: (MonadReader env m, HasDirs env, MonadIO m)
                    -> FilePath
                    -> m (Either ProcessError ())
 darwinNotarization Darwin path = exec
-  "xattr"
+  "/usr/bin/xattr"
   ["-r", "-d", "com.apple.quarantine", path]
   Nothing
   Nothing
@@ -1195,24 +1199,22 @@ getVersionInfo v' tool =
     )
 
 
-ensureGlobalTools :: ( MonadMask m
-                     , MonadThrow m
-                     , HasLog env
-                     , MonadIO m
-                     , MonadReader env m
-                     , HasDirs env
-                     , HasSettings env
-                     , HasGHCupInfo env
-                     , MonadUnliftIO m
-                     , MonadFail m
-                     )
-                  => Excepts '[GPGError, DigestError, ContentLengthError, DownloadFailed, NoDownload] m ()
-ensureGlobalTools
+ensureShimGen :: ( MonadMask m
+                 , MonadThrow m
+                 , HasLog env
+                 , MonadIO m
+                 , MonadReader env m
+                 , HasDirs env
+                 , HasSettings env
+                 , HasGHCupInfo env
+                 , MonadUnliftIO m
+                 , MonadFail m
+                 )
+              => Excepts '[GPGError, DigestError, ContentLengthError, DownloadFailed, NoDownload] m ()
+ensureShimGen
   | isWindows = do
-      (GHCupInfo _ _ gTools) <- lift getGHCupInfo
       dirs <- lift getDirs
-      shimDownload <- liftE $ lE @_ @'[NoDownload]
-        $ maybe (Left (NoDownload' ShimGen)) Right $ Map.lookup ShimGen gTools
+      let shimDownload = DownloadInfo shimGenURL Nothing shimGenSHA Nothing Nothing
       let dl = downloadCached' shimDownload (Just "gs.exe") Nothing
       void $ (\DigestError{} -> do
           lift $ logWarn "Digest doesn't match, redownloading gs.exe..."
@@ -1316,22 +1318,6 @@ warnAboutHlsCompatibility = do
 
 
 
-addToPath :: FilePath
-          -> Bool         -- ^ if False will prepend
-          -> IO [(String, String)]
-addToPath path append = do
- cEnv <- Map.fromList <$> getEnvironment
- let paths          = ["PATH", "Path"]
-     curPaths       = (\x -> maybe [] splitSearchPath (Map.lookup x cEnv)) =<< paths
-     {- HLINT ignore "Redundant bracket" -}
-     newPath        = intercalate [searchPathSeparator] (if append then (curPaths ++ [path]) else (path : curPaths))
-     envWithoutPath = foldr (\x y -> Map.delete x y) cEnv paths
-     pathVar        = if isWindows then "Path" else "PATH"
-     envWithNewPath = Map.toList $ Map.insert pathVar newPath envWithoutPath
- liftIO $ setEnv pathVar newPath
- return envWithNewPath
-
-
     -----------
     --[ Git ]--
     -----------

lib/GHCup/Utils/Dirs.hs

@@ -29,6 +29,7 @@ module GHCup.Utils.Dirs
   , relativeSymlink
   , withGHCupTmpDir
   , getConfigFilePath
+  , getConfigFilePath'
   , useXDG
   , cleanupTrash
 
@@ -360,6 +361,12 @@ getConfigFilePath = do
   confDir <- liftIO ghcupConfigDir
   pure $ fromGHCupPath confDir </> "config.yaml"
 
+getConfigFilePath' :: (MonadReader env m, HasDirs env) => m FilePath
+getConfigFilePath' = do
+  Dirs {..} <- getDirs
+  pure $ fromGHCupPath confDir </> "config.yaml"
+
+
 ghcupConfigFile :: (MonadIO m)
                 => Excepts '[JSONError] m UserSettings
 ghcupConfigFile = do

lib/GHCup/Version.hs

@@ -24,17 +24,26 @@ 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.
 --
 -- Note that when updating this, CI requires that the file exsists AND the same file exists at
 -- 'https://www.haskell.org/ghcup/exp/ghcup-<ver>.yaml' with some newlines added.
 ghcupURL :: URI
-ghcupURL = [uri|https://raw.githubusercontent.com/haskell/ghcup-metadata/master/ghcup-0.0.7.yaml|]
+ghcupURL = [uri|https://raw.githubusercontent.com/haskell/ghcup-metadata/master/ghcup-0.0.8.yaml|]
+
+stackSetupURL :: URI
+stackSetupURL = [uri|https://raw.githubusercontent.com/commercialhaskell/stackage-content/master/stack/stack-setup-2.yaml|]
+
+shimGenURL :: URI
+shimGenURL = [uri|https://downloads.haskell.org/~ghcup/shimgen/shim-2.exe|]
+
+shimGenSHA :: T.Text
+shimGenSHA = T.pack "7c55e201f71860c5babea886007c8fa44b861abf50d1c07e5677eb0bda387a70"
 
 -- | The current ghcup version.
 ghcUpVer :: V.PVP
@@ -53,7 +62,7 @@ versionCmp ver1 (VR_eq ver2)   = ver1 == ver2
 
 versionRange :: V.Versioning -> VersionRange -> Bool
 versionRange ver' (SimpleRange cmps) = all (versionCmp ver') cmps
-versionRange ver' (OrRange cmps range) = 
+versionRange ver' (OrRange cmps range) =
   versionRange ver' (SimpleRange cmps) || versionRange ver' range
 
 pvpToVersion :: MonadThrow m => V.PVP -> Text -> m V.Version
@@ -65,44 +74,15 @@ 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="0.1.19.4"
+ghver="0.1.20.0"
 : "${GHCUP_BASE_URL:=https://downloads.haskell.org/~ghcup}"
 
 export GHCUP_SKIP_UPDATE_CHECK=yes
@@ -172,9 +172,8 @@ _done() {
 				green "Start a new haskell project in the current directory via:"
 				green "  cabal init --interactive"
 				green
-				green "Install other GHC versions and tools via:"
-				green "  ghcup list"
-				green "  ghcup install <tool> <version>"
+				green "To install other GHC versions and tools, run:"
+				green "  ghcup tui"
 				green
 				green "To install system libraries and update msys2/mingw64,"
 				green "open the \"Mingw haskell shell\""

scripts/bootstrap/bootstrap-haskell.ps1

@@ -11,7 +11,7 @@
     * cabal - The Cabal build tool for managing Haskell software"
     * stack - (optional) A cross-platform program for developing Haskell projects"
     * hls   - (optional) A language server for developers to integrate with their editor/IDE"
-    
+
 	By default, the installation is non-interactive, unless you run it with 'Interactive $true'.
 #>
 param (
@@ -42,7 +42,9 @@ param (
     # The Msys2 version to download (e.g. 20221216)
     [string]$Msys2Version,
     # The Msys2 sha256sum hash
-    [string]$Msys2Hash
+    [string]$Msys2Hash,
+    # Whether to disable creation of several desktop shortcuts
+    [switch]$DontWriteDesktopShortcuts
 )
 
 $DefaultMsys2Version = "20221216"
@@ -139,7 +141,7 @@ filter Get-FileSize {
 function Get-FileWCSynchronous{
     param(
         [Parameter(Mandatory=$true)]
-        [string]$url, 
+        [string]$url,
         [string]$destinationFolder="$env:USERPROFILE\Downloads",
         [switch]$includeStats
     )
@@ -229,7 +231,7 @@ if ($GhcupBasePrefixEnv) {
     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    
+    Exit 1
   }
 }
 
@@ -274,7 +276,7 @@ Press enter to accept the default [{0}]:
     if (!($GhcupBasePrefix.EndsWith('\'))) {
       $GhcupBasePrefix = ('{0}\' -f $GhcupBasePrefix)
     }
-  
+
     $GhcupBasePrefix = $GhcupBasePrefix.TrimEnd().TrimStart()
     if (!($GhcupBasePrefix)) {
       Print-Msg -color Red -msg "No directory specified!"
@@ -350,7 +352,7 @@ if ($CabalDir) {
   $CabDirEnv = $CabalDir
   if (!($CabDirEnv)) {
     Print-Msg -color Red -msg "No directory specified!"
-    Exit 1        
+    Exit 1
   } elseif (!(Split-Path -IsAbsolute -Path "$CabDirEnv")) {
     Print-Msg -color Red -msg "Invalid/Non-absolute Path specified"
     Exit 1
@@ -365,7 +367,7 @@ if ($CabalDir) {
 
     $CabDirEnv = $CabDirEnv.TrimEnd().TrimStart()
     if (!($CabDirEnv)) {
-      Print-Msg -color Red -msg "No directory specified!"         
+      Print-Msg -color Red -msg "No directory specified!"
     } elseif (!(Split-Path -IsAbsolute -Path "$CabDirEnv")) {
       Print-Msg -color Red -msg "Invalid/Non-absolute Path specified"
     } else {
@@ -410,6 +412,26 @@ if (!($InstallStack)) {
   }
 }
 
+if ($Interactive) {
+	$DesktopDecision = $Host.UI.PromptForChoice('Create Desktop shortcuts'
+                                        , 'Do you want to create convenience desktop shortcuts (e.g. for uninstallation and msys2 shell)?'
+                                        , [System.Management.Automation.Host.ChoiceDescription[]] @('&Yes'
+                                            '&No'
+                                            '&Abort'), 0)
+	if ($DesktopDecision -eq 0) {
+      $InstallDesktopShortcuts = $true
+    } elseif ($DesktopDecision -eq 2) {
+      Exit 0
+    }
+} else {
+	if ($Minimal) {
+      $InstallDesktopShortcuts = $false
+	} elseif ($DontWriteDesktopShortcuts) {
+      $InstallDesktopShortcuts = $false
+	} else {
+      $InstallDesktopShortcuts = $true
+	}
+}
 
 # mingw foo
 Print-Msg -msg 'First checking for Msys2...'
@@ -485,12 +507,12 @@ if (!(Test-Path -Path ('{0}' -f $MsysDir))) {
         $MsysDirPrompt = Read-Host
         $MsysDir = ($defaultMsys2Dir,$MsysDirPrompt)[[bool]$MsysDirPrompt]
       } else {
-        Print-Msg -color Magenta -msg 'Input existing MSys2 toolchain directory:' 
+        Print-Msg -color Magenta -msg 'Input existing MSys2 toolchain directory:'
         $MsysDir = Read-Host
       }
       $MsysDir = $MsysDir.TrimEnd().TrimStart()
       if (!($MsysDir)) {
-        Print-Msg -color Red -msg "No directory specified!"         
+        Print-Msg -color Red -msg "No directory specified!"
       } elseif (!(Test-Path -LiteralPath ('{0}' -f $MsysDir))) {
         Print-Msg -color Red -msg ('MSys2 installation at ''{0}'' could not be found!' -f $MsysDir)
       } elseif (!(Split-Path -IsAbsolute -Path "$MsysDir")) {
@@ -510,8 +532,11 @@ if (!(Test-Path -Path ('{0}' -f $MsysDir))) {
 	Start-Sleep -s 5
 }
 
-Print-Msg -msg 'Creating shortcuts...'
-$uninstallShortCut = @'
+
+if ($InstallDesktopShortcuts) {
+
+	Print-Msg -msg 'Creating shortcuts...'
+	$uninstallShortCut = @'
 $decision = $Host.UI.PromptForChoice('Uninstall Haskell'
 , 'Do you want to uninstall all of the haskell toolchain, including GHC, Cabal, Stack and GHCup itself?'
 , [System.Management.Automation.Host.ChoiceDescription[]] @('&Uninstall'
@@ -573,12 +598,13 @@ if ($Host.Name -eq "ConsoleHost")
 }
 '@
 
-$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 'Install GHC dev dependencies.lnk' -TempPath $GhcupDir
-Create-Shortcut -SourceExe ('{0}\msys2_shell.cmd' -f $MsysDir) -ArgumentsToSourceExe '-mingw64' -DestinationPath 'Mingw haskell shell.lnk' -TempPath $GhcupDir
-Create-Shortcut -SourceExe 'https://www.msys2.org/docs/package-management' -ArgumentsToSourceExe '' -DestinationPath 'Mingw package management docs.url' -TempPath $GhcupDir
-$DesktopDir = [Environment]::GetFolderPath("Desktop")
-$null = New-Item -Path $DesktopDir -Name "Uninstall Haskell.ps1" -ItemType "file" -Force -Value $uninstallShortCut
+	$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 'Install GHC dev dependencies.lnk' -TempPath $GhcupDir
+	Create-Shortcut -SourceExe ('{0}\msys2_shell.cmd' -f $MsysDir) -ArgumentsToSourceExe '-mingw64' -DestinationPath 'Mingw haskell shell.lnk' -TempPath $GhcupDir
+	Create-Shortcut -SourceExe 'https://www.msys2.org/docs/package-management' -ArgumentsToSourceExe '' -DestinationPath 'Mingw package management docs.url' -TempPath $GhcupDir
+	$DesktopDir = [Environment]::GetFolderPath("Desktop")
+	$null = New-Item -Path $DesktopDir -Name "Uninstall Haskell.ps1" -ItemType "file" -Force -Value $uninstallShortCut
+}
 
 Print-Msg -msg ('Adding {0}\bin to Users Path...' -f $GhcupDir)
 Add-EnvPath -Path ('{0}\bin' -f ([System.IO.Path]::GetFullPath("$GhcupDir"))) -Container 'User'

scripts/dev/update-shell-completions.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+set -xue
+
+cabal --verbose=0 run ghcup:exe:ghcup -- --bash-completion-script ghcup > scripts/shell-completions/bash
+cabal --verbose=0 run ghcup:exe:ghcup -- --zsh-completion-script ghcup > scripts/shell-completions/zsh
+cabal --verbose=0 run ghcup:exe:ghcup -- --fish-completion-script ghcup > scripts/shell-completions/fish
+

scripts/hooks/stack/ghc-install.sh

@@ -9,8 +9,8 @@ set -eu
 
 case $HOOK_GHC_TYPE in
     bindist)
-        ghcdir=$(ghcup whereis --directory ghc "$HOOK_GHC_VERSION" || ghcup run --ghc "$HOOK_GHC_VERSION" --install) || exit 3
-        printf "%s/ghc" "${ghcdir}"
+        ghc_path=$(ghcup whereis ghc "$HOOK_GHC_VERSION" || { ghcup install ghc "$HOOK_GHC_VERSION" >/dev/null && ghcup whereis ghc "$HOOK_GHC_VERSION" ; }) || { >&2 echo "Installing $HOOK_GHC_VERSION via ghcup failed" exit 3 ;}
+        printf "%s" "${ghc_path}"
         ;;
     git)
         # TODO: should be somewhat possible

stack.yaml

@@ -24,6 +24,8 @@ extra-deps:
   - strict-base-0.4.0.0
   - text-2.0.2
   - yaml-streamly-0.12.2
+  - github: fosskers/versions
+    commit: 7bc3355348aac3510771d4622aff09ac38c9924d
 
 flags:
   http-io-streams:

test/ghcup-test/GHCup/ArbitraryTypes.hs

@@ -175,10 +175,6 @@ instance Arbitrary Tool where
   arbitrary = genericArbitrary
   shrink    = genericShrink
 
-instance Arbitrary GlobalTool where
-  arbitrary = genericArbitrary
-  shrink    = genericShrink
-
 instance Arbitrary GHCupInfo where
   arbitrary = genericArbitrary
   shrink    = genericShrink

test/optparse-test/ChangeLogTest.hs

@@ -1,3 +1,6 @@
+{-# LANGUAGE TemplateHaskell #-}
+{-# LANGUAGE OverloadedStrings #-}
+
 module ChangeLogTest where
 
 import Test.Tasty
@@ -6,8 +9,7 @@ import Utils
 import Test.Tasty.HUnit
 import Control.Monad.IO.Class
 import GHCup.Types
-import Data.Versions
-import Data.List.NonEmpty (NonEmpty ((:|)))
+import Data.Versions (versionQ)
 
 changeLogTests :: TestTree
 changeLogTests = testGroup "changelog" $ map (uncurry check) checkList
@@ -30,7 +32,7 @@ checkList =
       (Just $ GHCVersion
         $ GHCTargetVersion
           Nothing
-          (mkVersion $ (Digits 9 :| []) :| [Digits 2 :| []]))
+          $(versionQ "9.2"))
     )
   , ("changelog recommended", ChangeLogOptions False Nothing (Just $ ToolTag Recommended))
   , ("changelog -t cabal recommended", ChangeLogOptions False (Just Cabal) (Just $ ToolTag Recommended))
@@ -38,7 +40,7 @@ checkList =
       (Just $ GHCVersion
         $ GHCTargetVersion
           Nothing
-          (mkVersion $ (Digits 3 :| []) :| [Digits 10 :| [],Digits 1 :| [],Digits 0 :| []]))
+          $(versionQ "3.10.1.0"))
     )
   , ("changelog 2023-07-22", ChangeLogOptions False Nothing (Just (ToolDay (read "2023-07-22"))))
   ]

test/optparse-test/CompileTest.hs

@@ -1,6 +1,7 @@
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE QuasiQuotes #-}
 {-# LANGUAGE CPP #-}
+{-# LANGUAGE TemplateHaskell #-}
 
 module CompileTest where
 
@@ -59,12 +60,12 @@ 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 $ mkVersion' "9.2.8")
+        (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 $ mkVersion' "9.2.8")
+          (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
@@ -73,7 +74,7 @@ compileGhcCheckList = mapSecond CompileGHC
     )
   , ("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 $ mkVersion' "9.2.8")
+        (Left $(versionQ "9.2.8"))
     )
   , (baseCmd <> "-j20", baseOptions{GHC.jobs = Just 20})
   , (baseCmd <> "--jobs 10", baseOptions{GHC.jobs = Just 10})
@@ -86,8 +87,8 @@ compileGhcCheckList = mapSecond CompileGHC
   , (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 $ mkVersion' "9.4.5-p1"})
-  , (baseCmd <> "--overwrite-version 9.4.5-p1", baseOptions{GHC.ovewrwiteVer = Just $ mkVersion' "9.4.5-p1"})
+  , (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})
@@ -107,8 +108,8 @@ compileGhcCheckList = mapSecond CompileGHC
     baseOptions :: GHCCompileOptions
     baseOptions =
       mkDefaultGHCCompileOptions
-        (GHC.SourceDist $ mkVersion' "9.4.5")
-        (Left $ mkVersion' "9.2.8")
+        (GHC.SourceDist $(versionQ "9.4.5"))
+        (Left $(versionQ "9.2.8"))
 
 compileHlsCheckList :: [(String, CompileCommand)]
 compileHlsCheckList = mapSecond CompileHLS
@@ -136,7 +137,7 @@ compileHlsCheckList = mapSecond CompileHLS
     )
   , ("compile hls --source-dist 2.0.0.0 --ghc 9.2.8",
         mkDefaultHLSCompileOptions
-          (HLS.SourceDist $ mkVersion' "2.0.0.0")
+          (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",
@@ -146,15 +147,15 @@ compileHlsCheckList = mapSecond CompileHLS
     )
   , ("compile hls -v 2.0.0.0 --ghc latest",
         mkDefaultHLSCompileOptions
-          (HLS.HackageDist $ mkVersion' "2.0.0.0")
+          (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 $ mkVersion' "2.0.0.0-p1"})
-  , (baseCmd <> "--overwrite-version 2.0.0.0-p1", baseOptions{HLS.ovewrwiteVer = Right $ mkVersion' "2.0.0.0-p1"})
+  , (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"})
@@ -178,11 +179,11 @@ compileHlsCheckList = mapSecond CompileHLS
     baseOptions :: HLSCompileOptions
     baseOptions =
       mkDefaultHLSCompileOptions
-        (HLS.HackageDist $ mkVersion' "2.0.0.0")
+        (HLS.HackageDist $(versionQ "2.0.0.0"))
         [ghc928]
 
     ghc928 :: ToolVersion
-    ghc928 = GHCVersion $ GHCTargetVersion Nothing (mkVersion' "9.2.8")
+    ghc928 = GHCVersion $ GHCTargetVersion Nothing $(versionQ "9.2.8")
 
 compileParseWith :: [String] -> IO CompileCommand
 compileParseWith args = do

test/optparse-test/ConfigTest.hs

@@ -5,6 +5,7 @@ module ConfigTest where
 import Test.Tasty
 import Test.Tasty.HUnit
 import GHCup.OptParse
+import GHCup.Types (NewURLSource(..))
 import Utils
 import Control.Monad.IO.Class
 import URI.ByteString.QQ
@@ -23,7 +24,13 @@ checkList =
   , ("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|]
+    , AddReleaseChannel False (NewURI [uri|https://raw.githubusercontent.com/haskell/ghcup-metadata/master/ghcup-prereleases-0.0.7.yaml|])
+    )
+  , ("config add-release-channel GHCupURL"
+    , AddReleaseChannel False NewGHCupURL
+    )
+  , ("config add-release-channel StackSetupURL"
+    , AddReleaseChannel False NewStackSetupURL
     )
   , ("config set cache true", SetConfig "cache" (Just "true"))
   ]

test/optparse-test/InstallTest.hs

@@ -1,6 +1,7 @@
 {-# LANGUAGE CPP               #-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE QuasiQuotes       #-}
+{-# LANGUAGE TemplateHaskell   #-}
 
 module InstallTest where
 
@@ -54,7 +55,7 @@ oldStyleCheckList =
     : ("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 (mkVersion $ (Str "head" :| []) :| [])
+        , instVer = Just $ GHCVersion $ GHCTargetVersion Nothing  $(versionQ "head")
         }
     )
     : mapSecond
@@ -62,48 +63,48 @@ oldStyleCheckList =
         [ ("install ghc-9.2", GHCVersion
               $ GHCTargetVersion
                 (Just "ghc")
-                (mkVersion $ (Digits 9 :| []) :| [Digits 2 :| []])
+                $(versionQ "9.2")
           )
           -- invalid
         , ("install next", GHCVersion
               $ GHCTargetVersion
                 Nothing
-                (mkVersion $ (Str "next" :| []) :| [])
+                $(versionQ "next")
           )
         , ("install latest", ToolTag Latest)
         , ("install nightly", GHCVersion
               $ GHCTargetVersion
                 Nothing
-                (mkVersion $ (Str "nightly" :| []) :| [])
+                $(versionQ "nightly")
           )
         , ("install recommended", ToolTag Recommended)
         , ("install prerelease", GHCVersion
               $ GHCTargetVersion
                 Nothing
-                (mkVersion $ (Str "prerelease" :| []) :| [])
+                $(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")
-                (mkVersion $ (Digits 9 :| []) :| [Digits 6 :| []])
+                $(versionQ "9.6")
           )
         , ("install base-4.18", ToolTag (Base (PVP {_pComponents = 4 :| [18]})))
         , ("install cabal-3.10", GHCVersion
               $ GHCTargetVersion
                 (Just "cabal")
-                (mkVersion $ (Digits 3 :| []) :| [Digits 10 :| []])
+                $(versionQ "3.10")
           )
         , ("install hls-2.0.0.0", GHCVersion
               $ GHCTargetVersion
                 (Just "hls")
-                (mkVersion $ (Digits 2 :| []) :| [Digits 0 :| [], Digits 0 :| [], Digits 0 :| []])
+                $(versionQ "2.0.0.0")
           )
         , ("install stack-2.9.3", GHCVersion
               $ GHCTargetVersion
                 (Just "stack")
-                (mkVersion $ (Digits 2 :| []) :| [Digits 9 :| [], Digits 3 :| []])
+                $(versionQ "2.9.3")
           )
         ]
 
@@ -114,37 +115,37 @@ installGhcCheckList =
     [ ("install ghc 9.2", GHCVersion
           $ GHCTargetVersion
             Nothing
-            (mkVersion $ (Digits 9 :| []) :| [Digits 2 :| []])
+            $(versionQ "9.2")
       )
     , ("install ghc next", GHCVersion
           $ GHCTargetVersion
             Nothing
-            (mkVersion $ (Str "next" :| []) :| [])
+            $(versionQ "next")
       )
     , ("install ghc latest", ToolTag Latest)
     , ("install ghc nightly", GHCVersion
           $ GHCTargetVersion
             Nothing
-            (mkVersion $ (Str "nightly" :| []) :| [])
+            $(versionQ "nightly")
       )
     , ("install ghc recommended", ToolTag Recommended)
     , ("install ghc prerelease", GHCVersion
           $ GHCTargetVersion
             Nothing
-            (mkVersion $ (Str "prerelease" :| []) :| [])
+            $(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")
-            (mkVersion $ (Digits 9 :| []) :| [Digits 6 :| []])
+            $(versionQ "9.6")
       )
     , ("install ghc base-4.18", ToolTag (Base (PVP {_pComponents = 4 :| [18]})))
     , ("install ghc ghc-9.2", GHCVersion
           $ GHCTargetVersion
             (Just "ghc")
-            (mkVersion $ (Digits 9 :| []) :| [Digits 2 :| []])
+            $(versionQ "9.2")
       )
     ]
 
@@ -152,69 +153,48 @@ installCabalCheckList :: [(String, Either InstallCommand InstallOptions)]
 installCabalCheckList =
   ("install cabal", Left $ InstallCabal defaultOptions{instSet = True})
   : mapSecond (Left . InstallCabal . mkInstallOptions')
-    [ ("install cabal 3.10", ToolVersion $ mkVersion $ (Digits 3 :| []) :| [Digits 10 :| []])
-    , ("install cabal next", ToolVersion $ mkVersion $ (Str "next" :| []) :| [])
+    [ ("install cabal 3.10", ToolVersion $(versionQ "3.10"))
+    , ("install cabal next", ToolVersion $(versionQ "next"))
     , ("install cabal latest", ToolTag Latest)
-    , ("install cabal nightly", ToolVersion $ mkVersion $ (Str "nightly" :| []) :| [])
+    , ("install cabal nightly", ToolVersion $(versionQ "nightly"))
     , ("install cabal recommended", ToolTag Recommended)
-    , ("install cabal prerelease", ToolVersion $ mkVersion $ (Str "prerelease" :| []) :| [])
+    , ("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
-          $ Version
-            { _vEpoch = Nothing
-            , _vChunks = (Str "cabal" :| []) :| []
-            , _vRel = [Digits 3 :| [], Digits 10 :| []]
-            , _vMeta = Nothing
-            }
-      )
+    , ("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 $ mkVersion $ (Digits 3 :| []) :| [Digits 10 :| []])
-    , ("install hls next", ToolVersion $ mkVersion $ (Str "next" :| []) :| [])
+    [ ("install hls 3.10", ToolVersion $(versionQ "3.10"))
+    , ("install hls next", ToolVersion $(versionQ "next"))
     , ("install hls latest", ToolTag Latest)
-    , ("install hls nightly", ToolVersion $ mkVersion $ (Str "nightly" :| []) :| [])
+    , ("install hls nightly", ToolVersion $(versionQ "nightly"))
     , ("install hls recommended", ToolTag Recommended)
-    , ("install hls prerelease", ToolVersion $ mkVersion $ (Str "prerelease" :| []) :| [])
+    , ("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
-          $ Version
-            { _vEpoch = Nothing
-            , _vChunks = (Str "hls" :| []) :| []
-            , _vRel = [Digits 2 :| [], Digits 0 :| []]
-            , _vMeta = Nothing
-            }
-      )
+    , ("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 $ mkVersion $ (Digits 3 :| []) :| [Digits 10 :| []])
-    , ("install stack next", ToolVersion $ mkVersion $ (Str "next" :| []) :| [])
+    [ ("install stack 3.10", ToolVersion $(versionQ "3.10"))
+    , ("install stack next", ToolVersion $(versionQ "next"))
     , ("install stack latest", ToolTag Latest)
-    , ("install stack nightly", ToolVersion $ mkVersion $ (Str "nightly" :| []) :| [])
+    , ("install stack nightly", ToolVersion $(versionQ "nightly"))
     , ("install stack recommended", ToolTag Recommended)
-    , ("install stack prerelease", ToolVersion $ mkVersion $ (Str "prerelease" :| []) :| [])
+    , ("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
-          $ Version
-            { _vEpoch = Nothing
-            , _vChunks = (Str "stack" :| []) :| []
-            , _vRel = [Digits 2 :| [], Digits 9 :| []]
-            , _vMeta = Nothing
-            }
-      )
+    , ("install stack stack-2.9", ToolVersion $(versionQ "stack-2.9"))
     ]
 
 installParseWith :: [String] -> IO (Either InstallCommand InstallOptions)

test/optparse-test/RmTest.hs

@@ -1,4 +1,5 @@
 {-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE TemplateHaskell   #-}
 
 module RmTest where
 
@@ -6,7 +7,6 @@ import Test.Tasty
 import GHCup.OptParse
 import Utils
 import GHCup.Types
-import Data.List.NonEmpty (NonEmpty ((:|)))
 import Data.Versions
 
 
@@ -24,54 +24,36 @@ rmTests =
 oldStyleCheckList :: [(String, Either RmCommand RmOptions)]
 oldStyleCheckList = mapSecond (Right . RmOptions)
   [ -- failed with ("rm", xxx)
-    ("rm 9.2.8", mkTVer (mkVersion $ (Digits 9 :| []) :| [Digits 2 :| [], Digits 8 :| []]))
-  , ("rm ghc-9.2.8",  GHCTargetVersion (Just "ghc") (mkVersion $ (Digits 9 :| []) :| [Digits 2 :| [], Digits 8 :| []]))
+    ("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 (mkVersion $ (Digits 9 :| []) :| [Digits 2 :| [], Digits 8 :| []]))
-  , ("rm ghc ghc-9.2.8",  GHCTargetVersion (Just "ghc") (mkVersion $ (Digits 9 :| []) :| [Digits 2 :| [], Digits 8 :| []]))
+    ("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", mkVersion $ (Digits 3 :| []) :| [Digits 10 :| []])
-  , ("rm cabal cabal-3.10", Version
-        { _vEpoch = Nothing
-        , _vChunks = (Str "cabal" :| []) :| []
-        , _vRel = [Digits 3 :| [], Digits 10 :| []]
-        , _vMeta = Nothing
-        }
-    )
+    ("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", mkVersion $ (Digits 2 :| []) :| [Digits 0 :| []])
-  , ("rm hls hls-2.0", Version
-        { _vEpoch = Nothing
-        , _vChunks = (Str "hls" :| []) :| []
-        , _vRel = [Digits 2 :| [], Digits 0 :| []]
-        , _vMeta = Nothing
-        }
-    )
+    ("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", mkVersion $ (Digits 2 :| []) :| [Digits 9 :| [], Digits 1 :| []])
-  , ("rm stack stack-2.9.1", Version
-        { _vEpoch = Nothing
-        , _vChunks = (Str "stack" :| []) :| []
-        , _vRel = [Digits 2 :| [], Digits 9 :| [], Digits 1 :| []]
-        , _vMeta = Nothing
-        }
-    )
+    ("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)

test/optparse-test/RunTest.hs

@@ -1,5 +1,6 @@
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE CPP               #-}
+{-# LANGUAGE TemplateHaskell   #-}
 
 module RunTest where
 
@@ -7,6 +8,7 @@ import Test.Tasty
 import GHCup.OptParse
 import Utils
 import GHCup.Types
+import Data.Versions (versionQ)
 
 
 runTests :: TestTree
@@ -35,11 +37,11 @@ runCheckList =
   , ("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 $ mkVersion' "9.2.8"})
+  , ("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 $ mkVersion' "3.10"})
-  , ("run --hls 2.0", defaultOptions{runHLSVer = Just $ ToolVersion $ mkVersion' "2.0"})
-  , ("run --stack 2.9", defaultOptions{runStackVer = Just $ ToolVersion $ mkVersion' "2.9"})
+  , ("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"})
@@ -52,9 +54,9 @@ runCheckList =
   , ("run --ghc latest --cabal 3.10 --stack 2.9 --hls 2.0 --install",
         defaultOptions
           { runGHCVer = Just $ ToolTag Latest
-          , runCabalVer = Just $ ToolVersion $ mkVersion' "3.10"
-          , runHLSVer = Just $ ToolVersion $ mkVersion' "2.0"
-          , runStackVer = Just $ ToolVersion $ mkVersion' "2.9"
+          , runCabalVer = Just $ ToolVersion $(versionQ "3.10")
+          , runHLSVer = Just $ ToolVersion $(versionQ "2.0")
+          , runStackVer = Just $ ToolVersion $(versionQ "2.9")
           , runInstTool' = True
           }
     )

test/optparse-test/SetTest.hs

@@ -1,4 +1,5 @@
 {-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE TemplateHaskell #-}
 
 module SetTest where
 
@@ -27,44 +28,44 @@ oldStyleCheckList = mapSecond (Right . SetOptions)
   , ("set ghc-9.2", SetGHCVersion
           $ GHCTargetVersion
             (Just "ghc")
-            (mkVersion $ (Digits 9 :| []) :| [Digits 2 :| []])
+            $(versionQ "9.2")
     )
   , ("set next", SetNext)
   , ("set latest", SetToolTag Latest)
   , ("set nightly", SetGHCVersion
           $ GHCTargetVersion
             Nothing
-            (mkVersion $ (Str "nightly" :| []) :| [])
+            $(versionQ "nightly")
     )
     -- different from `set`
   , ("set recommended", SetToolTag Recommended)
   , ("set prerelease", SetGHCVersion
           $ GHCTargetVersion
             Nothing
-            (mkVersion $ (Str "prerelease" :| []) :| [])
+            $(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")
-            (mkVersion $ (Digits 9 :| []) :| [Digits 6 :| []])
+            $(versionQ "9.6")
     )
   , ("set base-4.18", SetToolTag (Base (PVP {_pComponents = 4 :| [18]})))
   , ("set cabal-3.10", SetGHCVersion
           $ GHCTargetVersion
             (Just "cabal")
-            (mkVersion $ (Digits 3 :| []) :| [Digits 10 :| []])
+            $(versionQ "3.10")
     )
   , ("set hls-2.0.0.0", SetGHCVersion
         $ GHCTargetVersion
             (Just "hls")
-            (mkVersion $ (Digits 2 :| []) :| [Digits 0 :| [], Digits 0 :| [], Digits 0 :| []])
+            $(versionQ "2.0.0.0")
     )
   , ("set stack-2.9.3", SetGHCVersion
         $ GHCTargetVersion
             (Just "stack")
-            (mkVersion $ (Digits 2 :| []) :| [Digits 9 :| [], Digits 3 :| []])
+            $(versionQ "2.9.3")
     )
   ]
 
@@ -74,100 +75,79 @@ setGhcCheckList = mapSecond (Left . SetGHC . SetOptions)
   , ("set ghc 9.2", SetGHCVersion
         $ GHCTargetVersion
           Nothing
-          (mkVersion $ (Digits 9 :| []) :| [Digits 2 :| []])
+          $(versionQ "9.2")
     )
   , ("set ghc next", SetNext)
   , ("set ghc latest", SetToolTag Latest)
   , ("set ghc nightly", SetGHCVersion
         $ GHCTargetVersion
           Nothing
-          (mkVersion $ (Str "nightly" :| []) :| [])
+          $(versionQ "nightly")
     )
   , ("set ghc recommended", SetToolTag Recommended)
   , ("set ghc prerelease", SetGHCVersion
         $ GHCTargetVersion
           Nothing
-          (mkVersion $ (Str "prerelease" :| []) :| [])
+          $(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")
-          (mkVersion $ (Digits 9 :| []) :| [Digits 6 :| []])
+          $(versionQ "9.6")
     )
   , ("set ghc base-4.18", SetToolTag (Base (PVP {_pComponents = 4 :| [18]})))
   , ("set ghc ghc-9.2", SetGHCVersion
         $ GHCTargetVersion
           (Just "ghc")
-          (mkVersion $ (Digits 9 :| []) :| [Digits 2 :| []])
+          $(versionQ "9.2")
     )
   ]
 
 setCabalCheckList :: [(String, Either SetCommand SetOptions)]
 setCabalCheckList = mapSecond (Left . SetCabal . SetOptions)
   [ ("set cabal", SetRecommended)
-  , ("set cabal 3.10", SetToolVersion $ mkVersion $ (Digits 3 :| []) :| [Digits 10 :| []])
+  , ("set cabal 3.10", SetToolVersion $(versionQ "3.10"))
   , ("set cabal next", SetNext)
   , ("set cabal latest", SetToolTag Latest)
-  , ("set cabal nightly", SetToolVersion $ mkVersion $ (Str "nightly" :| []) :| [])
+  , ("set cabal nightly", SetToolVersion $(versionQ "nightly"))
   , ("set cabal recommended", SetToolTag Recommended)
-  , ("set cabal prerelease", SetToolVersion $ mkVersion $ (Str "prerelease" :| []) :| [])
+  , ("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
-      $ Version
-        { _vEpoch = Nothing
-        , _vChunks = (Str "cabal" :| []) :| []
-        , _vRel = [Digits 3 :| [], Digits 10 :| []]
-        , _vMeta = Nothing
-        }
-    )
+  , ("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 $ mkVersion $ (Digits 2 :| []) :| [Digits 0 :| []])
+  , ("set hls 2.0", SetToolVersion $(versionQ "2.0"))
   , ("set hls next", SetNext)
   , ("set hls latest", SetToolTag Latest)
-  , ("set hls nightly", SetToolVersion $ mkVersion $ (Str "nightly" :| []) :| [])
+  , ("set hls nightly", SetToolVersion $(versionQ "nightly"))
   , ("set hls recommended", SetToolTag Recommended)
-  , ("set hls prerelease", SetToolVersion $ mkVersion $ (Str "prerelease" :| []) :| [])
+  , ("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
-      $ Version
-        { _vEpoch = Nothing
-        , _vChunks = (Str "hls" :| []) :| []
-        , _vRel = [Digits 2 :| [], Digits 0 :| []]
-        , _vMeta = Nothing
-        }
-    )
+  , ("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 $ mkVersion $ (Digits 2 :| []) :| [Digits 9 :| []])
+  , ("set stack 2.9", SetToolVersion $(versionQ "2.9"))
   , ("set stack next", SetNext)
   , ("set stack latest", SetToolTag Latest)
-  , ("set stack nightly", SetToolVersion $ mkVersion $ (Str "nightly" :| []) :| [])
+  , ("set stack nightly", SetToolVersion $(versionQ "nightly"))
   , ("set stack recommended", SetToolTag Recommended)
-  , ("set stack prerelease", SetToolVersion $ mkVersion $ (Str "prerelease" :| []) :| [])
+  , ("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
-      $ Version
-        { _vEpoch = Nothing
-        , _vChunks = (Str "stack" :| []) :| []
-        , _vRel = [Digits 2 :| [], Digits 9 :| []]
-        , _vMeta = Nothing
-        }
-    )
+  , ("set stack stack-2.9", SetToolVersion $(versionQ "stack-2.9"))
   ]
 
 setParseWith :: [String] -> IO (Either SetCommand SetOptions)

test/optparse-test/Utils.hs

@@ -4,12 +4,9 @@ module Utils where
 import GHCup.OptParse as GHCup
 import Options.Applicative
 import Data.Bifunctor
-import Data.Versions
-import Data.List.NonEmpty (NonEmpty)
 import Test.Tasty
 import Test.Tasty.HUnit
 import Control.Monad.IO.Class
-import qualified Data.Text as T
 
 parseWith :: [String] -> IO Command
 parseWith args =
@@ -23,14 +20,6 @@ padLeft desiredLength s = padding ++ s
 mapSecond :: (b -> c) -> [(a,b)] -> [(a,c)]
 mapSecond = map . second
 
-mkVersion :: NonEmpty VChunk -> Version
-mkVersion chunks = Version Nothing chunks [] Nothing
-
-mkVersion' :: T.Text -> Version
-mkVersion' txt =
-  let Right ver = version txt
-  in ver
-
 buildTestTree
   :: (Eq a, Show a)
   => ([String] -> IO a) -- ^ The parse function

test/optparse-test/WhereisTest.hs

@@ -1,4 +1,5 @@
 {-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE TemplateHaskell #-}
 
 module WhereisTest where
 
@@ -6,6 +7,7 @@ import Test.Tasty
 import GHCup.OptParse
 import Utils
 import GHCup.Types
+import Data.Versions (versionQ)
 
 whereisTests :: TestTree
 whereisTests = buildTestTree whereisParseWith ("whereis", whereisCheckList)
@@ -13,8 +15,8 @@ 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 $ mkVersion' "9.2.8"))
-  , ("whereis ghc ghc-9.2.8", WhereisTool GHC (Just $ GHCVersion $ GHCTargetVersion (Just "ghc") (mkVersion' "9.2.8")))
+  , ("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)