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create journal directory in withJournalHandle

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Fixes a crash by git-annex repair when .git/annex/journal/ does not exist.

Normally the journal directory is created before withJournalHandle gets
run, but git-annex repair can be run in a situation where it does not
exist.
This commit is contained in:
Joey Hess 2023-06-21 15:23:59 -04:00
parent aa8be9850a
commit 928b2a4839
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GPG key ID: DB12DB0FF05F8F38
4 changed files with 29 additions and 2 deletions
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9
Annex/Journal.hs
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@ -230,8 +230,13 @@ getJournalledFilesStale getjournaldir = do
{- Directory handle open on a journal directory. -}
withJournalHandle :: (Git.Repo -> RawFilePath) -> (DirectoryHandle -> IO a) -> Annex a
withJournalHandle getjournaldir a = do
d <- fromRawFilePath <$> fromRepo getjournaldir
bracketIO (openDirectory d) closeDirectory (liftIO . a)
d <- fromRepo getjournaldir
bracket (opendir d) (liftIO . closeDirectory) (liftIO . a)
where
-- avoid overhead of creating the journal directory when it already
-- exists
opendir d = liftIO (openDirectory (fromRawFilePath d))
`catchIO` (const (createAnnexDirectory d >> opendir d))
{- Checks if there are changes in the journal. -}
journalDirty :: (Git.Repo -> RawFilePath) -> Annex Bool

1
CHANGELOG
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@ -92,6 +92,7 @@ git-annex (10.20230408) UNRELEASED; urgency=medium
* assistant: Fix a crash when a small file is deleted immediately after
being created.
* repair: Fix handling of git ref names on Windows.
* repair: Fix a crash when .git/annex/journal/ does not exist.
* Support building with optparse-applicative 0.18.1
(Thanks, Peter Simons)

2
doc/bugs/git-annex-repair_claims_success_then_failure.mdwn
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@ -48,3 +48,5 @@ I did that because annexed objects are 1.7TB big here, so I wanted a local copy
I'll keep the repo lying around for a few days, maybe weeks, if some experiment or further feedback is needed.
Thank you for your attention.
> [[fixed|done]].. sorry for the delay and thanks for reporting --[[Joey]]

19
doc/bugs/git-annex-repair_claims_success_then_failure/comment_1_de8dfda0bc321e573ab9d17aec1ecb84._comment Normal file
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@ -0,0 +1,19 @@
[[!comment format=mdwn
username="joey"
subject="""comment 1"""
date="2023-06-21T18:53:31Z"
content="""
I was able to reproduce this bug!
git-annex init
rm -rf .git/annex
git-annex repair
git-annex: .git/annex/journal/: openDirStream: does not exist (No such file or directory)
That's with Annex.Repair modified to always run commitindex. Having a
repository with a git-annex branch that is corrupt, would have the same effect
as that modification.
Fixed this.
"""]]