| Commit message (Collapse) | Author | Age |
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being added to the annex.
Anything that tries to open the file for write, or delete the file,
or replace it with something else, will not affect the add.
Only if a process has the file open for write before add starts
can it still change it while (or after) it's added to the annex.
(fsck will catch this later of course)
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generating a key
This already made migrate's code a lot simpler.
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Uses a MVar again, as there seems no other way to thread the state through
inotify events.
This is a rather unsatisfactory result. I had wanted to run them in
the same monad so that the git queue could be used to coleasce git commands
and speed things up. But, that led to fragility: If several files are
added, and one is removed before queue flush, git add will fail to add
any of them. So, the queue is still explicitly flushed after each add for
now.
TODO: Investigate using git add --ignore-errors. This would need to be done
in Command.Add. And, git add still exits nonzero with it, so would need
to avoid crashing on queue flush.
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The queue is still flushed on add, because each add event is handled by a
separate Annex monad. That needs to be fixed to speed up add a lot.
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When a file is added, and then deleted before the add action runs,
the delete event was unhappy that the file never did get staged.
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When a new file is annexed, a deletion event occurs when it's moved away
to be replaced by a symlink. Most of the time, there is no problimatic
race, because the same thread runs the add event as the deletion event.
So, once the symlink is in place, the deletion code won't run at all,
due to existing checks that a deleted file is really gone.
But there is a race at startup, as then the inotify thread is running
at the same time as the main thread, which does the initial tree walking
and annexing. It would be possible for the deletion inotify to run
in a perfect race with the addition, and remove the newly added symlink
from the git cache.
To solve this race, added event serialization via a MVar. We putMVar
before running each event, which blocks if an event is already running.
And when an event finishes (or crashes!), we takeMVar to free the lock.
Also, make rm -rf not spew warnings by passing --ignore-unmatch when
deleting directories.
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And just like that, annexed files can be moved and copies around within
the tree, and are automatically fixed to point to the content, and staged
in git. Huzzah!
Delete still remains TODO, with its troublesome race during add..
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When a directory is deleted, or moved away, git rm -r it to stage
the deletion.
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Improved the inotify code, so it will also notice directory removal
and symlink creation.
In the watch code, optimised away a stat of a file that's being added,
that's done by Command.Add.start. This is the reason symlink creation is
handled separately from file creation, since during initial tree walk
at startup, a stat was already done, and can be reused.
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adds them
Use case for this was developed somewhere on the Transiberian Railroad.
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Resetting an unlocked file to the branch head failed if it had just been
added, not committed, and unlocked, since the branch didbn't have it.
The code was concerned about dropping any changes that might be staged in the
index, but I cannot see why.
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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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annex.ssh-options, annex.rsync-options, annex.bup-split-options.
And adjust types to avoid the bugs that broke several config settings
recently. Now "annex." prefixing is enforced at the type level.
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content into the git repository.
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Sort of by popular demand, but the last straw for not using seq
was that it can run into command line length limits.
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Allow custom headers to be sent with all HTTP requests.
(Requested by the Internet Archive)
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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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So far this only handles auto-annexing new files that are created inside
the repository while it's running. To make this really useful,
it needs to at least:
- notice deleted files and stage the deletion
(tricky; there's a race with add..)
- notice renamed files, auto-fix the symlink, and stage the new file location
- periodically auto-commit staged changes
- honor .gitignore, not adding files it excludes
Also nice to have would be:
- Somehow sync remotes, possibly using a push sync like dvcs-autosync
does, so they are immediately updated.
- Somehow get content that is unavilable. This is problimatic with inotify,
since we only get an event once the user has tried (and failed) to read
from the file. Perhaps instead, automatically copy content that is added
out to remotes, with the goal of all repos eventually getting a copy,
if df allows.
- Drop files that have not been used lately, or meet some other criteria
(as long as there's a copy elsewhere).
- Perhaps automatically dropunused files that have been deleted,
although I cannot see a way to do that, since by the time the inotify
deletion event arrives, the file is deleted, and we cannot see what
its symlink pointed to! Alternatievely, perhaps automatically
do an expensive unused/dropunused cleanup process.
Some of this probably needs the currently stateless threads to maintain
a common state.
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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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getConfig got a remote-specific config, and this confusing name caused it
to be used a couple of places that only were interested in global configs.
Rename to getRemoteConfig and make getConfig only get global configs.
There are no behavior changes here, but remote.<name>.annex-web-options
never actually worked (and per-remote web options is a very unlikely to be
useful case so I didn't make it work), so fix the documentation for it.
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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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Conflicts:
Command/Commit.hs
debian/changelog
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Conflicts:
debian/changelog
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Add tuning, docs, etc.
Not sure if status is the right place to remote size.. perhaps unused
should report the size and also warn if it sees more keys than the bloom
filter allows?
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it works!
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leaks memory
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Can't trust the key size to be accurate for tmp and bad keys, so check
actual file size. In the wild I saw the old code be wrong by a factor
of about 100!
If all tmp/bad keys are empty, they're not shown in status at all.
Showing 0 bytes and suggesting to clean it up seemed weird..
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Joey Hess