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|
{- git-annex git hooks
-
- Note that it's important that the content of scripts installed by
- git-annex not change, otherwise removing old hooks using an old
- version of the script would fail.
-
- Copyright 2013-2019 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
module Annex.Hook where
import Annex.Common
import qualified Git.Hook as Git
import qualified Annex
import Utility.Shell
import qualified Data.Map as M
preCommitHook :: Git.Hook
preCommitHook = Git.Hook "pre-commit" (mkHookScript "git annex pre-commit .") []
postReceiveHook :: Git.Hook
postReceiveHook = Git.Hook "post-receive"
-- Only run git-annex post-receive when git-annex supports it,
-- to avoid failing if the repository with this hook is used
-- with an older version of git-annex.
(mkHookScript "if git annex post-receive --help >/dev/null 2>&1; then git annex post-receive; fi")
-- This is an old version of the hook script.
[ mkHookScript "git annex post-receive"
]
postCheckoutHook :: Git.Hook
postCheckoutHook = Git.Hook "post-checkout" smudgeHook []
postMergeHook :: Git.Hook
postMergeHook = Git.Hook "post-merge" smudgeHook []
-- Older versions of git-annex didn't support this command, but neither did
-- they support v7 repositories.
smudgeHook :: String
smudgeHook = mkHookScript "git annex smudge --update"
preCommitAnnexHook :: Git.Hook
preCommitAnnexHook = Git.Hook "pre-commit-annex" "" []
postUpdateAnnexHook :: Git.Hook
postUpdateAnnexHook = Git.Hook "post-update-annex" "" []
mkHookScript :: String -> String
mkHookScript s = unlines
[ shebang
, "# automatically configured by git-annex"
, s
]
hookWrite :: Git.Hook -> Annex ()
hookWrite h = unlessM (inRepo $ Git.hookWrite h) $
hookWarning h "already exists, not configuring"
hookUnWrite :: Git.Hook -> Annex ()
hookUnWrite h = unlessM (inRepo $ Git.hookUnWrite h) $
hookWarning h "contents modified; not deleting. Edit it to remove call to git annex."
hookWarning :: Git.Hook -> String -> Annex ()
hookWarning h msg = do
r <- gitRepo
warning $ UnquotedString $
Git.hookName h ++ " hook (" ++ Git.hookFile h r ++ ") " ++ msg
{- Runs a hook. To avoid checking if the hook exists every time,
- the existing hooks are cached. -}
runAnnexHook :: Git.Hook -> Annex ()
runAnnexHook hook = do
m <- Annex.getState Annex.existinghooks
case M.lookup hook m of
Just True -> run
Just False -> noop
Nothing -> do
exists <- inRepo $ Git.hookExists hook
Annex.changeState $ \s -> s
{ Annex.existinghooks = M.insert hook exists m }
when exists run
where
run = unlessM (inRepo $ Git.runHook hook) $ do
h <- fromRepo $ Git.hookFile hook
warning $ UnquotedString $ h ++ " failed"
|
