| Commit message (Collapse) | Author | Age |
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Still no options though.
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This is a work in progress. It compiles and is able to do basic command
dispatch, including git autocorrection, while using optparse-applicative
for the core commandline parsing.
* Many commands are temporarily disabled before conversion.
* Options are not wired in yet.
* cmdnorepo actions don't work yet.
Also, removed the [Command] list, which was only used in one place.
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Common command man pages all split out and often expanded.
A few sections split out into their own pages.
Still need to do all the other commands..
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I've been disliking how the command seek actions were written for some
time, with their inversion of control and ugly workarounds.
The last straw to fix it was sync --content, which didn't fit the
Annex [CommandStart] interface well at all. I have not yet made it take
advantage of the changed interface though.
The crucial change, and probably why I didn't do it this way from the
beginning, is to make each CommandStart action be run with exceptions
caught, and if it fails, increment a failure counter in annex state.
So I finally remove the very first code I wrote for git-annex, which
was before I had exception handling in the Annex monad, and so ran outside
that monad, passing state explicitly as it ran each CommandStart action.
This was a real slog from 1 to 5 am.
Test suite passes.
Memory usage is lower than before, sometimes by a couple of megabytes, and
remains constant, even when running in a large repo, and even when
repeatedly failing and incrementing the error counter. So no accidental
laziness space leaks.
Wall clock speed is identical, even in large repos.
This commit was sponsored by an anonymous bitcoiner.
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to avoid contending with the user's desktop login process.
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connecting to it from another.
Does not yet use HTTPS. I'd need to generate a certificate, and I'm not
sure what's the best way to do that.
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Not yet used .. mindless train work.
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This avoids some small overhead by only running the check once per command;
it also ensures that, even if the command doesn't find anything to run on,
it still fails to run when in a bare repo.
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git annex assistant --autostart will start separate daemons in each
listed autostart repo
running the webapp outside any git-annex repo will open it on the
first listed autostart repo
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This avoids forking another process, avoids polling, fixes a race,
and avoids a rare forkProcess thread hang that I saw once time
when starting the webapp.
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like watch, but more magic
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Now it starts really, really fast! Down from 15 minutes or so on my big
tree to around 1 minute.
The trick is to remember the last time the daemon was running. Links with a
ctime from before that point don't need to be restaged on startup (as long
as they are correct), since the old daemon would have handled them already.
We also assume that if the daemon has never run before, any links that
already exist are good. The pre-commit hook fixes links, so this should be
a safe assumption.
Adds another MVar holding a DaemonStatus data structure. Also
allowed getting rid of the Annex.Fast hack. This data structure will
probably grow a lot of details about the daemon's status, that will
later be used by the webapp's UI.
The code to actually track when the daemon was last running is not written
yet. It's 3 am.
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The idea, not yet done, is to use this to detect when a file
has an old change time, and avoid expensive restaging of the file.
If git-annex watch keeps track of the last time it finished a full scan,
then any symlink that is older than that time must have been scanned
before, so need not be added. (Relying on moving, copying, etc of a file
all updating its change time.)
Anyway, this info is available for free since inotify already checks it,
so it might as well make it available.
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10 thousand queue size does not use appreciable memory in my testing.
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Now really only done in the startup scan.
It turns out to be quite hard for event handlers to know when the startup
scan is complete. I tried to make addWatch pass that info, but found
threading the state very difficult. For now, a quick hack, using the fast
flag.
Note that it's actually possible for inotify events to come in while the
startup scan is still ongoing. Due to my hack, the expensive check will
be done for files added in such inotify events.
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This requires a relatively expensive test at file add time to see if it's
in git already. But it can be optimised to only happen during the startup
scan.
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I thought this might be a lock conflict that explains the deadlock when
built with -threaded, but it seems not.. it still locks! It even locks
without the committer thread.
Indeed, it locks when running "git annex add"! -threaded is exposing some
other problem.
Still, this seems conceptually cleaner and did not add any inneficiencies.
Also added some high-level documentation about the threads used.
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Writes pid to a file. Is supposed to take an exclusive lock, but that's not
working, and it's too late for me to understand why.
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Crazy like a fox..
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This way, there's no window where deleted files won't be noticed.
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The commit thread now has access to a channel containing the times of
all uncommitted changes. This lets it be smart about detecting busy times
when a batch job is running (such as rm -rf, or untarring something, etc),
and avoid committing until it's done. While at the same time, instantly
committing one-off changes that the user is going to expect to see
immediately.
I had to use STM to implement the channel, because of
http://hackage.haskell.org/trac/ghc/ticket/4154
While this adds a dependency, I always wanted to use STM, so this actually
makes me happy. ;)
Also happy that shouldCommit is a pure function, so other commit smartness
strategies can easily be played with. Although the current one seems pretty
good.
There is one bug, for some reason it does double commits, every time.
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Currently the stupidest possible version, just wakes up every second,
and may make empty commits sometimes.
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no need to run git-rm separately
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(oops, I had a calcMerge and a calc_merge!)
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May not work. Certianly needs to flush the queue from time to time
when only symlink changes are being made.
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Joey Hess
Joey Hess