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Author SHA1 Message Date
9daca301a0 Make sure we source ghcup dirs in bootstrap script
Fixes #354
2022-04-29 16:19:53 +02:00
12 changed files with 168 additions and 188 deletions

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@@ -437,7 +437,6 @@ install' _ (_, ListResult {..}) = do
, TarDirDoesNotExist
, FileAlreadyExistsError
, ProcessError
, GHCupShadowed
]
run (do
@@ -453,7 +452,7 @@ install' _ (_, ListResult {..}) = do
liftE $ installCabalBin lVer Nothing False $> (vi, dirs, ce)
GHCup -> do
let vi = snd <$> getLatest dls GHCup
liftE $ upgradeGHCup Nothing False False $> (vi, dirs, ce)
liftE $ upgradeGHCup Nothing False $> (vi, dirs, ce)
HLS -> do
let vi = getVersionInfo lVer HLS dls
liftE $ installHLSBin lVer Nothing False $> (vi, dirs, ce)

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@@ -96,7 +96,7 @@ data Command
| Config ConfigCommand
| Whereis WhereisOptions WhereisCommand
#ifndef DISABLE_UPGRADE
| Upgrade UpgradeOpts Bool Bool
| Upgrade UpgradeOpts Bool
#endif
| ToolRequirements ToolReqOpts
| ChangeLog ChangeLogOptions
@@ -222,18 +222,18 @@ com =
(info (List <$> listOpts <**> helper)
(progDesc "Show available GHCs and other tools")
)
#ifndef DISABLE_UPGRADE
<> command
"upgrade"
(info
( (Upgrade <$> upgradeOptsP <*> switch
(short 'f' <> long "force" <> help "Force update")
<*> switch
(long "fail-if-shadowed" <> help "Fails after upgrading if the upgraded ghcup binary is shadowed by something else in PATH (useful for CI)")
)
<**> helper
)
(progDesc "Upgrade ghcup")
)
#endif
<> command
"compile"
( Compile

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@@ -283,7 +283,7 @@ hlsCompileOpts =
(short 'g' <> long "git-ref" <> metavar "GIT_REFERENCE" <> help
"The git commit/branch/ref to build from"
) <*>
optional (option str (short 'r' <> long "repository" <> metavar "GIT_REPOSITORY" <> help "The git repository to build from (defaults to HLS upstream)"
optional (option str (short 'r' <> long "repository" <> metavar "GIT_REPOSITORY" <> help "The git repository to build from (defaults to GHC upstream)"
<> completer (gitFileUri ["https://github.com/haskell/haskell-language-server.git"])
))
)))

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@@ -59,16 +59,15 @@ data UpgradeOpts = UpgradeInplace
--[ Parsers ]--
---------------
upgradeOptsP :: Parser UpgradeOpts
upgradeOptsP =
flag'
UpgradeInplace
(short 'i' <> long "inplace" <> help
"Upgrade ghcup in-place"
"Upgrade ghcup in-place (wherever it's at)"
)
<|>
( UpgradeAt
<|> ( UpgradeAt
<$> option
str
(short 't' <> long "target" <> metavar "TARGET_DIR" <> help
@@ -93,7 +92,6 @@ type UpgradeEffects = '[ DigestError
, FileDoesNotExistError
, CopyError
, DownloadFailed
, GHCupShadowed
]
@@ -122,19 +120,18 @@ upgrade :: ( Monad m
)
=> UpgradeOpts
-> Bool
-> Bool
-> Dirs
-> (forall a. ReaderT AppState m (VEither UpgradeEffects a) -> m (VEither UpgradeEffects a))
-> (ReaderT LeanAppState m () -> m ())
-> m ExitCode
upgrade uOpts force' fatal Dirs{..} runAppState runLogger = do
upgrade uOpts force' Dirs{..} runAppState runLogger = do
target <- case uOpts of
UpgradeInplace -> Just <$> liftIO getExecutablePath
(UpgradeAt p) -> pure $ Just p
UpgradeGHCupDir -> pure (Just (binDir </> "ghcup" <> exeExt))
runUpgrade runAppState (do
v' <- liftE $ upgradeGHCup target force' fatal
v' <- liftE $ upgradeGHCup target force'
GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
pure (v', dls)
) >>= \case

View File

@@ -141,7 +141,9 @@ main = do
)
let listCommands = infoOption
("install set rm install-cabal list"
#ifndef DISABLE_UPGRADE
<> " upgrade"
#endif
<> " compile debug-info tool-requirements changelog"
)
( long "list-commands"
@@ -243,10 +245,14 @@ Report bugs at <https://gitlab.haskell.org/haskell/ghcup-hs/issues>|]
alreadyInstalling' <- alreadyInstalling optCommand newTool
when (not alreadyInstalling') $
case t of
#ifdef DISABLE_UPGRADE
GHCup -> pure ()
#else
GHCup -> runLogger $
logWarn ("New GHCup version available: "
<> prettyVer l
<> ". To upgrade, run 'ghcup upgrade'")
#endif
_ -> runLogger $
logWarn ("New "
<> T.pack (prettyShow t)
@@ -290,24 +296,26 @@ Report bugs at <https://gitlab.haskell.org/haskell/ghcup-hs/issues>|]
s' <- appState
liftIO $ brickMain s' >> pure ExitSuccess
#endif
Install installCommand -> install installCommand settings appState runLogger
InstallCabalLegacy iopts -> install (Left (InstallCabal iopts)) settings appState runLogger
Set setCommand -> set setCommand runAppState runLeanAppState runLogger
UnSet unsetCommand -> unset unsetCommand runLeanAppState runLogger
List lo -> list lo no_color runAppState
Rm rmCommand -> rm rmCommand runAppState runLogger
DInfo -> dinfo runAppState runLogger
Compile compileCommand -> compile compileCommand settings dirs runAppState runLogger
Config configCommand -> config configCommand settings keybindings runLogger
Install installCommand -> install installCommand settings appState runLogger
InstallCabalLegacy iopts -> install (Left (InstallCabal iopts)) settings appState runLogger
Set setCommand -> set setCommand runAppState runLeanAppState runLogger
UnSet unsetCommand -> unset unsetCommand runLeanAppState runLogger
List lo -> list lo no_color runAppState
Rm rmCommand -> rm rmCommand runAppState runLogger
DInfo -> dinfo runAppState runLogger
Compile compileCommand -> compile compileCommand settings dirs runAppState runLogger
Config configCommand -> config configCommand settings keybindings runLogger
Whereis whereisOptions
whereisCommand -> whereis whereisCommand whereisOptions runAppState leanAppstate runLogger
Upgrade uOpts force' fatal -> upgrade uOpts force' fatal dirs runAppState runLogger
ToolRequirements topts -> toolRequirements topts runAppState runLogger
ChangeLog changelogOpts -> changelog changelogOpts runAppState runLogger
Nuke -> nuke appState runLogger
Prefetch pfCom -> prefetch pfCom runAppState runLogger
GC gcOpts -> gc gcOpts runAppState runLogger
Run runCommand -> run runCommand appState leanAppstate runLogger
whereisCommand -> whereis whereisCommand whereisOptions runAppState leanAppstate runLogger
#ifndef DISABLE_UPGRADE
Upgrade uOpts force' -> upgrade uOpts force' dirs runAppState runLogger
#endif
ToolRequirements topts -> toolRequirements topts runAppState runLogger
ChangeLog changelogOpts -> changelog changelogOpts runAppState runLogger
Nuke -> nuke appState runLogger
Prefetch pfCom -> prefetch pfCom runAppState runLogger
GC gcOpts -> gc gcOpts runAppState runLogger
Run runCommand -> run runCommand appState leanAppstate runLogger
case res of
ExitSuccess -> pure ()
@@ -345,7 +353,9 @@ Report bugs at <https://gitlab.haskell.org/haskell/ghcup-hs/issues>|]
(HLS, ver) = cmp' HLS (Just $ ToolVersion (mkTVer over)) ver
alreadyInstalling (Compile (CompileHLS HLSCompileOptions{ targetHLS = Left tver }))
(HLS, ver) = cmp' HLS (Just $ ToolVersion (mkTVer tver)) ver
alreadyInstalling (Upgrade _ _ _) (GHCup, _) = pure True
#ifndef DISABLE_UPGRADE
alreadyInstalling (Upgrade _ _) (GHCup, _) = pure True
#endif
alreadyInstalling _ _ = pure False
cmp' :: ( HasLog env

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@@ -57,13 +57,6 @@ as e.g. `/etc/bash_completion.d/ghcup` (depending on distro)
and make sure your bashrc sources the startup script
(`/usr/share/bash-completion/bash_completion` on some distros).
## Portability
`ghcup` is very portable. There are a few exceptions though:
1. `ghcup tui` is only available on non-windows platforms
2. legacy subcommands `ghcup install` (without a tool identifier) and `ghcup install-cabal` may be removed in the future
# Configuration
A configuration file can be put in `~/.ghcup/config.yaml`. The default config file

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@@ -16,8 +16,6 @@ The Glorious Glasgow Haskell Compilation System, version 8.10.7
If this fails, consult [the Getting started page](../install) for information on
how to install Haskell on your computer.
This guide is partly based on [Gil Mizrahi's blog](https://gilmi.me/blog/post/2021/08/14/hs-core-tools).
## Compiling programs with ghc
Running `ghc` invokes the Glasgow Haskell Compiler (GHC), and can be used to
@@ -328,7 +326,6 @@ see the [Cabal user guide](https://cabal.readthedocs.io/en/stable/getting-starte
<a href="https://hackage.haskell.org/" class="btn btn-primary" role="button">Discover Haskell packages</a>
<a href="https://hackage.haskell.org/package/base" class="btn btn-primary" role="button">The standard library</a>
<a href="https://haskell-language-server.readthedocs.io/en/stable/installation.html" class="btn btn-primary" role="button">Editor setup with HLS</a>
<a href="https://play-haskell.tomsmeding.com/play" class="btn btn-primary" role="button">Online playground</a>
</div>
## How to learn Haskell proper

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@@ -48,6 +48,13 @@ flag no-exe
default: False
manual: True
flag disable-upgrade
description:
Disable upgrade functionality. This is mainly to support brew packagers.
default: False
manual: True
library
exposed-modules:
GHCup
@@ -197,7 +204,6 @@ executable ghcup
GHCup.OptParse.Set
GHCup.OptParse.ToolRequirements
GHCup.OptParse.UnSet
GHCup.OptParse.Upgrade
GHCup.OptParse.Whereis
hs-source-dirs: app/ghcup
@@ -271,6 +277,11 @@ executable ghcup
if flag(no-exe)
buildable: False
if flag(disable-upgrade)
cpp-options: -DDISABLE_UPGRADE
else
other-modules: GHCup.OptParse.Upgrade
test-suite ghcup-test
type: exitcode-stdio-1.0

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@@ -2587,7 +2587,6 @@ upgradeGHCup :: ( MonadMask m
=> Maybe FilePath -- ^ full file destination to write ghcup into
-> Bool -- ^ whether to force update regardless
-- of currently installed version
-> Bool -- ^ whether to throw an error if ghcup is shadowed
-> Excepts
'[ CopyError
, DigestError
@@ -2596,16 +2595,15 @@ upgradeGHCup :: ( MonadMask m
, DownloadFailed
, NoDownload
, NoUpdate
, GHCupShadowed
]
m
Version
upgradeGHCup mtarget force' fatal = do
upgradeGHCup mtarget force' = do
Dirs {..} <- lift getDirs
GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
lift $ logInfo "Upgrading GHCup..."
let latestVer = fst (fromJust (getLatest dls GHCup))
let latestVer = fromJust $ fst <$> getLatest dls GHCup
(Just ghcupPVPVer) <- pure $ pvpToVersion ghcUpVer ""
when (not force' && (latestVer <= ghcupPVPVer)) $ throwE NoUpdate
dli <- liftE $ getDownloadInfo GHCup latestVer
@@ -2627,18 +2625,15 @@ upgradeGHCup mtarget force' fatal = do
lift $ logWarn $ T.pack (takeFileName destFile) <> " is not in PATH! You have to add it in order to use ghcup."
liftIO (isShadowed destFile) >>= \case
Nothing -> pure ()
Just pa
| fatal -> throwE (GHCupShadowed pa destFile latestVer)
| otherwise ->
lift $ logWarn $ "ghcup is shadowed by "
<> T.pack pa
<> ". The upgrade will not be in effect, unless you remove "
<> T.pack pa
<> " or make sure "
<> T.pack destDir
<> " comes before "
<> T.pack (takeDirectory pa)
<> " in PATH."
Just pa -> lift $ logWarn $ "ghcup is shadowed by "
<> T.pack pa
<> ". The upgrade will not be in effect, unless you remove "
<> T.pack pa
<> " or make sure "
<> T.pack destDir
<> " comes before "
<> T.pack (takeFileName pa)
<> " in PATH."
pure latestVer

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@@ -27,7 +27,6 @@ import Data.CaseInsensitive ( CI )
import Data.Text ( Text )
import Data.Versions
import Haskus.Utils.Variant
import System.FilePath
import Text.PrettyPrint hiding ( (<>) )
import Text.PrettyPrint.HughesPJClass hiding ( (<>) )
import URI.ByteString
@@ -292,24 +291,6 @@ instance Pretty HadrianNotFound where
pPrint HadrianNotFound =
text "Could not find Hadrian build files. Does this GHC version support Hadrian builds?"
data GHCupShadowed = GHCupShadowed
FilePath -- shadow binary
FilePath -- upgraded binary
Version -- upgraded version
deriving Show
instance Pretty GHCupShadowed where
pPrint (GHCupShadowed sh up _) =
text ("ghcup is shadowed by "
<> sh
<> ". The upgrade will not be in effect, unless you remove "
<> sh
<> " or make sure "
<> takeDirectory up
<> " comes before "
<> takeDirectory sh
<> " in PATH."
)
-------------------------
--[ High-level errors ]--

View File

@@ -317,10 +317,10 @@ ghcSet mtarget = do
MP.setInput rest
pure x
)
<* MP.some pathSep
<* pathSep
<* MP.takeRest
<* MP.eof
ghcSubPath = MP.some pathSep <* MP.chunk "ghc" *> MP.some pathSep
ghcSubPath = pathSep <* MP.chunk "ghc" *> pathSep
-- | Get all installed GHCs by reading ~/.ghcup/ghc/<dir>.
-- If a dir cannot be parsed, returns left.
@@ -398,10 +398,10 @@ cabalSet = do
cabalParse = MP.chunk "cabal-" *> version'
-- parses any path component ending with path separator,
-- e.g. "foo/"
stripPathComponet = parseUntil1 pathSep *> MP.some pathSep
stripPathComponet = parseUntil1 pathSep *> pathSep
-- parses an absolute path up until the last path separator,
-- e.g. "/bar/baz/foo" -> "/bar/baz/", leaving "foo"
stripAbsolutePath = MP.some pathSep *> MP.many (MP.try stripPathComponet)
stripAbsolutePath = pathSep *> MP.many (MP.try stripPathComponet)
-- parses a relative path up until the last path separator,
-- e.g. "bar/baz/foo" -> "bar/baz/", leaving "foo"
stripRelativePath = MP.many (MP.try stripPathComponet)
@@ -492,10 +492,10 @@ stackSet = do
cabalParse = MP.chunk "stack-" *> version'
-- parses any path component ending with path separator,
-- e.g. "foo/"
stripPathComponet = parseUntil1 pathSep *> MP.some pathSep
stripPathComponet = parseUntil1 pathSep *> pathSep
-- parses an absolute path up until the last path separator,
-- e.g. "/bar/baz/foo" -> "/bar/baz/", leaving "foo"
stripAbsolutePath = MP.some pathSep *> MP.many (MP.try stripPathComponet)
stripAbsolutePath = pathSep *> MP.many (MP.try stripPathComponet)
-- parses a relative path up until the last path separator,
-- e.g. "bar/baz/foo" -> "bar/baz/", leaving "foo"
stripRelativePath = MP.many (MP.try stripPathComponet)
@@ -543,10 +543,10 @@ hlsSet = do
cabalParse = MP.chunk "haskell-language-server-wrapper-" *> version'
-- parses any path component ending with path separator,
-- e.g. "foo/"
stripPathComponet = parseUntil1 pathSep *> MP.some pathSep
stripPathComponet = parseUntil1 pathSep *> pathSep
-- parses an absolute path up until the last path separator,
-- e.g. "/bar/baz/foo" -> "/bar/baz/", leaving "foo"
stripAbsolutePath = MP.some pathSep *> MP.many (MP.try stripPathComponet)
stripAbsolutePath = pathSep *> MP.many (MP.try stripPathComponet)
-- parses a relative path up until the last path separator,
-- e.g. "bar/baz/foo" -> "bar/baz/", leaving "foo"
stripRelativePath = MP.many (MP.try stripPathComponet)

View File

@@ -126,10 +126,10 @@ _eghcup() {
fi
if [ -z "${BOOTSTRAP_HASKELL_VERBOSE}" ] ; then
# shellcheck disable=SC2086
"${GHCUP_BIN}/ghcup" ${args} "$@"
"ghcup" ${args} "$@"
else
# shellcheck disable=SC2086
"${GHCUP_BIN}/ghcup" ${args} --verbose "$@"
"ghcup" ${args} --verbose "$@"
fi
}
@@ -228,99 +228,100 @@ posix_realpath() {
}
download_ghcup() {
if ! command -V "ghcup" >/dev/null 2>&1 ; then
case "${plat}" in
"linux"|"Linux")
case "${arch}" in
x86_64|amd64)
# we could be in a 32bit docker container, in which
# case uname doesn't give us what we want
if [ "$(getconf LONG_BIT)" = "32" ] ; then
_url=${GHCUP_BASE_URL}/${ghver}/i386-linux-ghcup-${ghver}
elif [ "$(getconf LONG_BIT)" = "64" ] ; then
_url=${GHCUP_BASE_URL}/${ghver}/x86_64-linux-ghcup-${ghver}
else
die "Unknown long bit size: $(getconf LONG_BIT)"
fi
;;
i*86)
_url=${GHCUP_BASE_URL}/${ghver}/i386-linux-ghcup-${ghver}
;;
armv7*|*armv8l*)
_url=${GHCUP_BASE_URL}/${ghver}/armv7-linux-ghcup-${ghver}
;;
aarch64|arm64)
# we could be in a 32bit docker container, in which
# case uname doesn't give us what we want
if [ "$(getconf LONG_BIT)" = "32" ] ; then
_url=${GHCUP_BASE_URL}/${ghver}/armv7-linux-ghcup-${ghver}
elif [ "$(getconf LONG_BIT)" = "64" ] ; then
_url=${GHCUP_BASE_URL}/${ghver}/aarch64-linux-ghcup-${ghver}
else
die "Unknown long bit size: $(getconf LONG_BIT)"
fi
;;
*) die "Unknown architecture: ${arch}"
;;
esac
;;
"FreeBSD"|"freebsd")
if freebsd-version | grep -E '^12.*' ; then
freebsd_ver=12
elif freebsd-version | grep -E '^13.*' ; then
freebsd_ver=13
else
die "Unsupported FreeBSD version! Please report a bug at https://gitlab.haskell.org/haskell/ghcup-hs/-/issues"
fi
case "${plat}" in
"linux"|"Linux")
case "${arch}" in
x86_64|amd64)
# we could be in a 32bit docker container, in which
# case uname doesn't give us what we want
if [ "$(getconf LONG_BIT)" = "32" ] ; then
_url=${GHCUP_BASE_URL}/${ghver}/i386-linux-ghcup-${ghver}
elif [ "$(getconf LONG_BIT)" = "64" ] ; then
_url=${GHCUP_BASE_URL}/${ghver}/x86_64-linux-ghcup-${ghver}
else
die "Unknown long bit size: $(getconf LONG_BIT)"
fi
;;
i*86)
_url=${GHCUP_BASE_URL}/${ghver}/i386-linux-ghcup-${ghver}
;;
armv7*|*armv8l*)
_url=${GHCUP_BASE_URL}/${ghver}/armv7-linux-ghcup-${ghver}
;;
aarch64|arm64)
# we could be in a 32bit docker container, in which
# case uname doesn't give us what we want
if [ "$(getconf LONG_BIT)" = "32" ] ; then
_url=${GHCUP_BASE_URL}/${ghver}/armv7-linux-ghcup-${ghver}
elif [ "$(getconf LONG_BIT)" = "64" ] ; then
_url=${GHCUP_BASE_URL}/${ghver}/aarch64-linux-ghcup-${ghver}
else
die "Unknown long bit size: $(getconf LONG_BIT)"
fi
;;
*) die "Unknown architecture: ${arch}"
;;
esac
;;
"FreeBSD"|"freebsd")
if freebsd-version | grep -E '^12.*' ; then
freebsd_ver=12
elif freebsd-version | grep -E '^13.*' ; then
freebsd_ver=13
else
die "Unsupported FreeBSD version! Please report a bug at https://gitlab.haskell.org/haskell/ghcup-hs/-/issues"
fi
case "${arch}" in
x86_64|amd64)
;;
i*86)
die "i386 currently not supported!"
;;
*) die "Unknown architecture: ${arch}"
;;
esac
_url=${GHCUP_BASE_URL}/${ghver}/x86_64-freebsd${freebsd_ver}-ghcup-${ghver}
;;
"Darwin"|"darwin")
case "${arch}" in
x86_64|amd64)
_url=${GHCUP_BASE_URL}/${ghver}/x86_64-apple-darwin-ghcup-${ghver}
;;
aarch64|arm64|armv8l)
_url=${GHCUP_BASE_URL}/${ghver}/aarch64-apple-darwin-ghcup-${ghver}
;;
i*86)
die "i386 currently not supported!"
;;
*) die "Unknown architecture: ${arch}"
;;
esac
;;
MSYS*|MINGW*)
case "${arch}" in
x86_64|amd64)
_url=${GHCUP_BASE_URL}/${ghver}/x86_64-mingw64-ghcup-${ghver}.exe
;;
*) die "Unknown architecture: ${arch}"
;;
esac
;;
*) die "Unknown platform: ${plat}"
;;
esac
case "${plat}" in
MSYS*|MINGW*)
edo curl -Lf "${_url}" > "${GHCUP_BIN}"/ghcup.exe
edo chmod +x "${GHCUP_BIN}"/ghcup.exe
;;
*)
edo curl -Lf "${_url}" > "${GHCUP_BIN}"/ghcup
edo chmod +x "${GHCUP_BIN}"/ghcup
;;
esac
case "${arch}" in
x86_64|amd64)
;;
i*86)
die "i386 currently not supported!"
;;
*) die "Unknown architecture: ${arch}"
;;
esac
_url=${GHCUP_BASE_URL}/${ghver}/x86_64-freebsd${freebsd_ver}-ghcup-${ghver}
;;
"Darwin"|"darwin")
case "${arch}" in
x86_64|amd64)
_url=${GHCUP_BASE_URL}/${ghver}/x86_64-apple-darwin-ghcup-${ghver}
;;
aarch64|arm64|armv8l)
_url=${GHCUP_BASE_URL}/${ghver}/aarch64-apple-darwin-ghcup-${ghver}
;;
i*86)
die "i386 currently not supported!"
;;
*) die "Unknown architecture: ${arch}"
;;
esac
;;
MSYS*|MINGW*)
case "${arch}" in
x86_64|amd64)
_url=${GHCUP_BASE_URL}/${ghver}/x86_64-mingw64-ghcup-${ghver}.exe
;;
*) die "Unknown architecture: ${arch}"
;;
esac
;;
*) die "Unknown platform: ${plat}"
;;
esac
case "${plat}" in
MSYS*|MINGW*)
edo curl -Lf "${_url}" > "${GHCUP_BIN}"/ghcup.exe
edo chmod +x "${GHCUP_BIN}"/ghcup.exe
;;
*)
edo curl -Lf "${_url}" > "${GHCUP_BIN}"/ghcup
edo chmod +x "${GHCUP_BIN}"/ghcup
;;
esac
fi
edo mkdir -p "${GHCUP_DIR}"
@@ -344,7 +345,9 @@ download_ghcup() {
# shellcheck disable=SC1090
edo . "${GHCUP_DIR}"/env
eghcup upgrade
if [ -z "${BOOTSTRAP_HASKELL_NO_UPGRADE}" ] ; then
ghcup upgrade || yellow "Failed to upgrade ghcup, continuing anyway"
fi
}
# Figures out the users login shell and sets
@@ -733,13 +736,7 @@ fi
edo mkdir -p "${GHCUP_BIN}"
if command -V "ghcup" >/dev/null 2>&1 ; then
if [ -z "${BOOTSTRAP_HASKELL_NO_UPGRADE}" ] ; then
_eghcup upgrade || download_ghcup
fi
else
download_ghcup
fi
download_ghcup
echo
if [ -n "${BOOTSTRAP_HASKELL_YAML}" ] ; then (>&2 ghcup -s "${BOOTSTRAP_HASKELL_YAML}" tool-requirements) ; else (>&2 ghcup tool-requirements) ; fi