86 lines
2.4 KiB
Haskell
86 lines
2.4 KiB
Haskell
{- git-annex repository initialization
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-
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- Copyright 2011 Joey Hess <joey@kitenet.net>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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module Init (
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ensureInitialized,
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isInitialized,
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initialize,
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uninitialize
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) where
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import Common.Annex
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import Utility.TempFile
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import qualified Git
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import qualified Annex.Branch
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import Logs.UUID
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import Annex.Version
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import Annex.UUID
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initialize :: Maybe String -> Annex ()
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initialize mdescription = do
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prepUUID
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Annex.Branch.create
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setVersion
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gitPreCommitHookWrite
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u <- getUUID
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maybe (recordUUID u) (describeUUID u) mdescription
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uninitialize :: Annex ()
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uninitialize = do
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gitPreCommitHookUnWrite
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removeRepoUUID
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{- Will automatically initialize if there is already a git-annex
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branch from somewhere. Otherwise, require a manual init
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to avoid git-annex accidentially being run in git
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repos that did not intend to use it. -}
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ensureInitialized :: Annex ()
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ensureInitialized = getVersion >>= maybe needsinit checkVersion
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where
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needsinit = ifM Annex.Branch.hasSibling
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( initialize Nothing
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, error "First run: git-annex init"
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)
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{- Checks if a repository is initialized. Does not check version for ugrade. -}
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isInitialized :: Annex Bool
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isInitialized = maybe Annex.Branch.hasSibling (const $ return True) =<< getVersion
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{- set up a git pre-commit hook, if one is not already present -}
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gitPreCommitHookWrite :: Annex ()
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gitPreCommitHookWrite = unlessBare $ do
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hook <- preCommitHook
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ifM (liftIO $ doesFileExist hook)
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( warning $ "pre-commit hook (" ++ hook ++ ") already exists, not configuring"
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, liftIO $ do
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viaTmp writeFile hook preCommitScript
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p <- getPermissions hook
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setPermissions hook $ p {executable = True}
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)
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gitPreCommitHookUnWrite :: Annex ()
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gitPreCommitHookUnWrite = unlessBare $ do
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hook <- preCommitHook
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whenM (liftIO $ doesFileExist hook) $
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ifM (liftIO $ (==) preCommitScript <$> readFile hook)
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( liftIO $ removeFile hook
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, warning $ "pre-commit hook (" ++ hook ++
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") contents modified; not deleting." ++
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" Edit it to remove call to git annex."
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)
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unlessBare :: Annex () -> Annex ()
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unlessBare = unlessM $ fromRepo Git.repoIsLocalBare
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preCommitHook :: Annex FilePath
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preCommitHook = (</>) <$> fromRepo Git.localGitDir <*> pure "hooks/pre-commit"
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preCommitScript :: String
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preCommitScript =
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"#!/bin/sh\n" ++
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"# automatically configured by git-annex\n" ++
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"git annex pre-commit .\n"
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