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ghcup: support vanilla and cross compilers #126

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merged 2 commits into from
Dec 25, 2024
Merged

ghcup: support vanilla and cross compilers #126

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5688797
Update ghcupsync.hs
Erchiusx Dec 25, 2024
e5d7eb1
fix typo of version
Erchiusx Dec 25, 2024
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13 changes: 13 additions & 0 deletions ghcup/ghcupsync.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -72,9 +72,22 @@ parseVersionFromFileName :: FilePath -> Maybe Version
parseVersionFromFileName filename = do
let basename = takeBaseName filename
noPrefix <- stripPrefix "ghcup-prereleases-" basename
<|> stripPrefix "ghcup-cross-" basename
<|> stripPrefix "ghcup-vanilla-" basename
<|> stripPrefix "ghcup-" basename
listToMaybe $ map fst . filter (\(_, rem) -> null rem) $ readP_to_S parseVersion noPrefix

-- This version of parseVersionFromFileName may have more forward compatability
-- but poorer performance
-- parseVersionFromFileName filename = do
-- let basename = takeBaseName filename
-- case find isJust . map tryParse $ tails basename of
-- (Just m) -> m -- if found, it will be a double Just, i.e. (Just (Just Version))
-- Nothing -> Nothing
-- where
-- tryParse :: String -> Maybe Version
-- tryParse = listToMaybe . map fst . reverse . readP_to_S parseVersion

------------------------------------------------------------------------
syncByMetadata :: FilePath -> FilePath -> IO ()
syncByMetadata basedir mdpath = do
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