bdec7fed9c
Adds a dependency on filepath-bytestring, an as yet unreleased fork of filepath that operates on RawFilePath. Git.Repo also changed to use RawFilePath for the path to the repo. This does eliminate some RawFilePath -> FilePath -> RawFilePath conversions. And filepath-bytestring's </> is probably faster. But I don't expect a major performance improvement from this. This is mostly groundwork for making Annex.Location use RawFilePath, which will allow for a conversion-free pipleline.
52 lines
1.7 KiB
Haskell
52 lines
1.7 KiB
Haskell
{- Adjusting the environment while running git commands.
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-
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- Copyright 2014-2016 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU AGPL version 3 or higher.
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-}
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module Git.Env where
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import Common
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import Git
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import Git.Types
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import Utility.Env
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{- Adjusts the gitEnv of a Repo. Copies the system environment if the repo
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- does not have any gitEnv yet. -}
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adjustGitEnv :: Repo -> ([(String, String)] -> [(String, String)]) -> IO Repo
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adjustGitEnv g adj = do
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e <- maybe getEnvironment return (gitEnv g)
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let e' = adj e
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return $ g { gitEnv = Just e' }
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where
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addGitEnv :: Repo -> String -> String -> IO Repo
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addGitEnv g var val = adjustGitEnv g (addEntry var val)
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{- Environment variables to use when running a command.
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- Includes GIT_DIR pointing at the repo, and GIT_WORK_TREE when the repo
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- is not bare. Also includes anything added to the Repo's gitEnv,
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- and a copy of the rest of the system environment. -}
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propGitEnv :: Repo -> IO [(String, String)]
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propGitEnv g = do
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g' <- addGitEnv g "GIT_DIR" (fromRawFilePath (localGitDir g))
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g'' <- maybe (pure g')
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(addGitEnv g' "GIT_WORK_TREE" . fromRawFilePath)
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(repoWorkTree g)
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return $ fromMaybe [] (gitEnv g'')
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{- Use with any action that makes a commit to set metadata. -}
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commitWithMetaData :: CommitMetaData -> CommitMetaData -> (Repo -> IO a) -> Repo -> IO a
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commitWithMetaData authormetadata committermetadata a g =
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a =<< adjustGitEnv g adj
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where
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adj = mkadj "AUTHOR" authormetadata
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. mkadj "COMMITTER" committermetadata
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mkadj p md = go "NAME" commitName
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. go "EMAIL" commitEmail
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. go "DATE" commitDate
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where
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go s getv = case getv md of
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Nothing -> id
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Just v -> addEntry ("GIT_" ++ p ++ "_" ++ s) v
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