101 lines
2.5 KiB
Haskell
101 lines
2.5 KiB
Haskell
{- git-annex command
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-
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- Copyright 2010 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 Command.Init where
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import Control.Monad.State (liftIO)
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import Control.Monad (when)
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import System.Directory
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import Command
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import qualified Annex
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import qualified GitRepo as Git
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import UUID
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import Version
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import Messages
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import Locations
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import Types
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command :: [Command]
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command = [Command "init" paramDesc seek
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"initialize git-annex with repository description"]
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seek :: [CommandSeek]
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seek = [withString start]
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{- Stores description for the repository etc. -}
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start :: CommandStartString
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start description = do
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when (null description) $
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error "please specify a description of this repository\n"
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showStart "init" description
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return $ Just $ perform description
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perform :: String -> CommandPerform
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perform description = do
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g <- Annex.gitRepo
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u <- getUUID g
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describeUUID u description
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setVersion
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liftIO $ gitAttributesWrite g
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gitPreCommitHookWrite g
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return $ Just cleanup
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cleanup :: CommandCleanup
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cleanup = do
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g <- Annex.gitRepo
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logfile <- uuidLog
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liftIO $ Git.run g ["add", logfile]
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liftIO $ Git.run g ["commit", "-q", "-m", "git annex init", logfile]
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return True
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{- configure git to use union merge driver on state files, if it is not
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- already -}
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gitAttributesWrite :: Git.Repo -> IO ()
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gitAttributesWrite repo = do
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exists <- doesFileExist attributes
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if not exists
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then do
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writeFile attributes $ attrLine ++ "\n"
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commit
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else do
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content <- readFile attributes
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when (all (/= attrLine) (lines content)) $ do
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appendFile attributes $ attrLine ++ "\n"
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commit
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where
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attributes = Git.attributes repo
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commit = do
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Git.run repo ["add", attributes]
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Git.run repo ["commit", "-q", "-m", "git-annex setup",
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attributes]
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attrLine :: String
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attrLine = stateLoc ++ "*.log merge=union"
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{- set up a git pre-commit hook, if one is not already present -}
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gitPreCommitHookWrite :: Git.Repo -> Annex ()
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gitPreCommitHookWrite repo = do
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exists <- liftIO $ doesFileExist hook
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if exists
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then warning $ "pre-commit hook (" ++ hook ++ ") already exists, not configuring"
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else liftIO $ do
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writeFile hook preCommitScript
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p <- getPermissions hook
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setPermissions hook $ p {executable = True}
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where
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hook = preCommitHook repo
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preCommitHook :: Git.Repo -> FilePath
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preCommitHook repo =
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Git.workTree repo ++ "/" ++ Git.gitDir repo ++ "/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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