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path: root/Annex/Journal.hs
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* unify exception handling into Utility.ExceptionGravatar Joey Hess2014-08-07
| | | | | | | | | | | | | | | | | | | | Removed old extensible-exceptions, only needed for very old ghc. Made webdav use Utility.Exception, to work after some changes in DAV's exception handling. Removed Annex.Exception. Mostly this was trivial, but note that tryAnnex is replaced with tryNonAsync and catchAnnex replaced with catchNonAsync. In theory that could be a behavior change, since the former caught all exceptions, and the latter don't catch async exceptions. However, in practice, nothing in the Annex monad uses async exceptions. Grepping for throwTo and killThread only find stuff in the assistant, which does not seem related. Command.Add.undo is changed to accept a SomeException, and things that use it for rollback now catch non-async exceptions, rather than only IOExceptions.
* refactor lockingGravatar Joey Hess2014-07-10
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* refactorGravatar Joey Hess2014-07-10
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* Fix minor FD leak in journal code.Gravatar Joey Hess2014-07-09
| | | | | | | | | | | | | | | | | | | | | | | | Minor because normally only 1 FD is leaked per git-annex run. However, the test suite leaks a few hundred FDs, and this broke it on the Debian autobuilders, which seem to have a tigher than usual ulimit. The leak was introduced by the lazy getDirectoryContents' that was introduced in b54de1dad4874b7561d2c5a345954b6b5c594078 in order to scale to millions of journal files -- if the lazy list was never fully consumed, the directory handle did not get closed. Instead, pull in openDirectory/readDirectory/closeDirectory code that I already developed and submitted in a patch to the haskell directory library earlier. Using this in journalDirty avoids the place that the lazy list caused a problem. And using it in stageJournal eliminates the need for getDirectoryContents'. The getJournalFiles* functions are switched back to using the regular strict getDirectoryContents. I'm not sure if those always consume the whole list, so this avoids any leak. And the things that call those are things like git annex unused, which also look at every file committed to the git-annex branch, so would need more work to scale to insane numbers of files anyway.
* work around getDirectoryContents not streaming lazilyGravatar Joey Hess2014-07-04
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* Windows: Fix bug introduced in last release that caused files in the ↵Gravatar Joey Hess2014-06-05
| | | | git-annex branch to have lines teminated with \r.
* Fix encoding of data written to git-annex branch. Avoid truncating unicode ↵Gravatar Joey Hess2014-05-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | characters to 8 bits. Allow any encoding to be used, as with filenames (but utf8 is the sane choice). Affects metadata and repository descriptions, and preferred content expressions. The question of what's the right encoding for the git-annex branch is a vexing one. utf-8 would be a nice choice, but this leaves the possibility of bad data getting into a git-annex branch somehow, and this resulting in git-annex crashing with encoding errors, which is a failure mode I want to avoid. (Also, preferred content expressions can refer to filenames, and filenames can have any encoding, so limiting to utf-8 would not be ideal.) The union merge code already took care to not assume any encoding for a file. Except it assumes that any \n is a literal newline, and not part of some encoding of a character that happens to contain a newline. (At least utf-8 avoids using newline for anything except liternal newlines.) Adapted the git-annex branch code to use this same approach. Note that there is a potential interop problem with Windows, since FileSystemEncoding doesn't work there, and instead things are always decoded as utf-8. If someone uses non-utf8 encoding for data on the git-annex branch, this can lead to an encoding error on windows. However, this commit doesn't actually make that any worse, because the union merge code would similarly fail with an encoding error on windows in that situation. This commit was sponsored by Kyle Meyer.
* Put non-object tmp files in .git/annex/misctmp, leaving .git/annex/tmp for ↵Gravatar Joey Hess2014-02-26
| | | | | | | | | | | | | | | | | | | | only partially transferred objects. This allows eg, putting .git/annex/tmp on a ram disk, if the disk IO of temp object files is too annoying (and if you don't want to keep partially transferred objects across reboots). .git/annex/misctmp must be on the same filesystem as the git work tree, since files are moved to there in a way that will not work cross-device, as well as symlinked into there. I first wanted to put the tmp objects in .git/annex/objects/tmp, but that would pose transition problems on upgrade when partially transferred objects existed. git annex info does not currently show the size of .git/annex/misctemp, since it should stay small. It would also be ok to make something clean it out, periodically.
* use locking on WindowsGravatar Joey Hess2014-01-28
| | | | This is all the easy cases, where there was already a separate lock file.
* use types to partially prove correctness of journal locking codeGravatar Joey Hess2013-10-03
| | | | | | | | | | | | | | My implementation does not guard against double locking of the journal. But it does ensure that the journal is always locked when operated on, by using a type that is only produced by lockJournal, and which is required as a parameter of all functions that operate on the journal. Note that I had to add the fooStale functions for cases where it does not make sense to lock the journal when querying it. I was more concerned about ensuring that anything that modifies the journal is locked. setJournalFile's implementation ensures that any query of the journal will get one value or the other atomically, even if the journal is being changed at the time.
* avoid more build warnings on WindowsGravatar Joey Hess2013-08-04
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* get rid of __WINDOWS__, use mingw32_HOST_OSGravatar Joey Hess2013-08-02
| | | | | The latter is harder for me to remember, but avoids build failures in code used by the configure program.
* improve robustness of fromDirect and replaceFileGravatar Joey Hess2013-05-25
| | | | | | | | | Made fromDirect check that a file in the tree has good content (and is not a broken symlink either) before copying it to another file that has the same key. Made replaceFile clean up the temp file if the action that creates it, or the file replacement action fails.
* fix the day's windows permissions damageGravatar Joey Hess2013-05-12
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* fixGravatar Joey Hess2013-05-12
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* deal with dos path separatorsGravatar Joey Hess2013-05-12
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* fix permission damage (thanks, Windows)Gravatar Joey Hess2013-05-11
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* git-annex now builds on Windows (doesn't work)Gravatar Joey Hess2013-05-11
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* finished where indentation changesGravatar Joey Hess2012-12-13
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* remove git-annex branch read cacheGravatar Joey Hess2012-10-19
| | | | | | | | | | | | | This cache prevented noticing changes made by another process. The case I just ran into involved the assistant dropping a file, which cached its presence info. Then the same file was downloaded again, but the assistant didn't know its presence info had changed. I don't see a way to keep this cache. Will instead rely on the OS level file cache, for files in the journal. May need to add more higher-level caching of info that it's ok to have a potentially stale copy of, although much of git-annex already does so.
* flip catchDefaultIOGravatar Joey Hess2012-09-17
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* honor core.sharedRepository when making all the other files in the annexGravatar Joey Hess2012-04-21
| | | | Lock files, directories, etc.
* IO exception reworkGravatar Joey Hess2012-02-03
| | | | | | ghc 7.4 comaplains about use of System.IO.Error to catch exceptions. Ok, use Control.Exception, with variants specialized to only catch IO exceptions.
* split out Annex/Journal.hsGravatar Joey Hess2011-12-12