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Add release channels info to the --help #1262

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Add release channels info to the --help #1262

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8a94627
Add release channels info to the --help
dfordivam May 20, 2025
0be6933
Show the '-s|--url-source' option in --help
dfordivam May 20, 2025
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10 changes: 9 additions & 1 deletion app/ghcup/Main.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -162,10 +162,18 @@ main = do
)

let main_footer = [s|Discussion:
ghcup installs the Glasgow Haskell Compiler from the official
ghcup installs the Haskell development tools from the configured
release channels, enabling you to easily switch between different
versions. It maintains a self-contained ~/.ghcup directory.

Release Channels:
* default: maintained by GHCup (recommended)
* cross: contains experimental cross compilers
* prereleases: contains pre-releases of all tools
* vanilla: similar to default but only uses upstream bindists
(no patches/fixes are applied, no missing platforms added)
More details at <https://www.haskell.org/ghcup/guide/#release-channels>

ENV variables:
* GHCUP_INSTALL_BASE_PREFIX: the base of ghcup (default: $HOME)
* GHCUP_USE_XDG_DIRS: set to anything to use XDG style directories
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1 change: 0 additions & 1 deletion lib-opt/GHCup/OptParse.hs
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Expand Up @@ -146,7 +146,6 @@ opts =
<> long "url-source"
<> metavar "<URL_SOURCE|cross|prereleases|vanilla|default>"
<> help "Alternative ghcup download info"
<> internal
<> completer urlSourceCompleter
)
)
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