| Commit message (Collapse) | Author | Age |
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Baked into the code was an assumption that a repository's git directory
could be determined by adding ".git" to its work tree (or nothing for bare
repos). That fails when core.worktree, or GIT_DIR and GIT_WORK_TREE are
used to separate the two.
This was attacked at the type level, by storing the gitdir and worktree
separately, so Nothing for the worktree means a bare repo.
A complication arose because we don't learn where a repository is bare
until its configuration is read. So another Location type handles
repositories that have not had their config read yet. I am not entirely
happy with this being a Location type, rather than representing them
entirely separate from the Git type. The new code is not worse than the
old, but better types could enforce more safety.
Added support for core.worktree. Overriding it with -c isn't supported
because it's not really clear what to do if a git repo's config is read, is
not bare, and is then overridden to bare. What is the right git directory
in this case? I will worry about this if/when someone has a use case for
overriding core.worktree with -c. (See Git.Config.updateLocation)
Also removed and renamed some functions like gitDir and workTree that
misused git's terminology.
One minor regression is known: git annex add in a bare repository does not
print a nice error message, but runs git ls-files in a way that fails
earlier with a less nice error message. This is because before --work-tree
was always passed to git commands, even in a bare repo, while now it's not.
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Amoung other things, this makes unlocking a WORM backed file and then
re-adding it without making any changes not add a new object, as the
timestamp is preserved.
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This option avoids gpg key distribution, at the expense of flexability, and
with the requirement that all clones of the git repository be equally
trusted.
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Allow custom headers to be sent with all HTTP requests.
(Requested by the Internet Archive)
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void :: Functor f => f a -> f () -- ah, of course that's useful :)
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Lock files, directories, etc.
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This is incomplete, it does not honor it yet for hash directories
and other annex bookkeeping files. Some of that is not needed for a bare
repo; some of it may be.
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Not only an optimisation. fsck always tried to preventWrite to make sure
file modes are good, and in a shared repo, that will fail on directories
not owned by the current user. Although there may be other problems with
such a setup.
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When preparing the debian stable backport, I am seeing a call to statvfs()
succeed, but also set errno to 2 (ENOENT). Not sure why this happens;
I am in a schroot when it does happen, or perhaps stable's libc is a little
broken and sets errno incorrectly. Anyway, it should be perfectly fine to
clear errno after the successful call, rather than before it.
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Recursive inotify has beaten me before, with its bad design and races,
but not this time! (I think.) This is able to follow the strongest
filesystem traffic I can throw at it, and robustly notices every file
add and delete. Mostly that's down to Haskell having a quite nice threaded
inotify library (that does its own buffering). A key insight was realizing
that the inotify directory add race could be dealt with by scanning for
files inside newly added directories.
TODO: Add support for freebsd/osx kqueue; see
http://hackage.haskell.org/package/kqueue
Can a git-annex-monitor be far off?
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that is quite likely caused by it.
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Now tested on linux and freebsd (amd64).
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Moving the portability handling into a small C library cleans up things
a lot, avoiding the pain of unpacking structs from inside haskell code.
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Nothing at all on hackage is using <&&> or <||>.
(Also, <&&> should short-circuit on failure.)
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(||) used applicative style runs both conditions rather than short
circuiting. Add an orM that properly short-circuits.
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no behavior changes
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Fix Key directory hash calculation code to behave as it did before version
3.20120227 when a key contains non-ascii.
The hash directories for a given Key are based on its md5sum.
Prior to ghc 7.4, Keys contained raw, undecoded bytes, so the md5sum was
taken of each byte in turn. With the ghc 7.4 filename encoding change,
keys contains decoded unicode characters (possibly with surrigates for
undecodable bytes). This changes the result of the md5sum, since the md5sum
used is pure haskell and supports unicode. And that won't do, as git-annex
will start looking in a different hash directory for the content of a key.
The surrigates are particularly bad, since that's essentially a ghc
implementation detail, so could change again at any time. Also, changing
the locale changes how the bytes are decoded, which can also change
the md5sum.
Symptoms would include things like:
* git annex fsck would complain that no copies existed of a file,
despite its symlink pointing to the content that was locally present
* git annex fix would change the symlink to use the wrong hash
directory.
Only WORM backend is likely to have been affected, since only it tends
to include much filename data (SHA1E could in theory also be affected).
I have not tried to support the hash directories used by git-annex versions
3.20120227 to 3.20120308, so things added with those versions with WORM
will require manual fixups. Sorry for the inconvenience!
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annexed file is in a subdirectory that nearly matched to the .git/annex/object/xx/yy subdirectories.
This is a straight up pure-code stinker. The relative path calculation
looked for common subdirectories in the two paths, but failed to stop
after the paths diverged. When a later pair of subdirectories were the
same, the resulting relative path was wrong.
Added regression test for this.
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a redirect
The code explicitly switches from HEAD to GET for most redirects.
Possibly because someone misread a spec (which does require switching from
POST to GET for 303 redirects). Or possibly because the spec really is that
bad. Upstream bug: https://github.com/haskell/HTTP/issues/24
Since we absolutely don't want to download entire (large) files from
the web when checking that they exist with HEAD, I wrote my own redirect
follower, based closely on the one used by Network.Browser, but without
this misfeature.
Note that Network.Browser checks that the redirect url is a http url
and fails if not. I don't, because I want to not need to change this
code when it gets https support (related: I'm surprised to see it
doesn't support https yet..). The check does not seem security significant;
it doesn't support file:// urls for example. If a http url is redirected
to https, the Network.Browser will actually make a http connection again.
This could loop, but only up to 5 times.
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available, matches the size of the key.
If there's no Content-Length, or the key has no size, this check is not
done, but it should happen most of the time, and protect against web
content that has changed.
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GHC should probably export withFilePath.
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Use withCAString rather than withCString.
XXX Actually, this only works in non-unicode locales when presented with
unicode characters. Help?
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Joey Hess