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Several places assumed this would not happen, and when the AssociatedFile
was Nothing, did nothing.
As part of this, preferred content checks pass the Key around.
Note that checkMatcher is sometimes now called with Just Key and Just File.
It currently constructs a FileMatcher, ignoring the Key. However, if it
constructed a FileKeyMatcher, which contained both, then it might be
possible to speed up parts of Limit, which currently call the somewhat
expensive lookupFileKey to get the Key.
I have not made this optimisation yet, because I am not sure if the key is
always the same. Will need some significant checking to satisfy myself
that's the case..
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Make sanity checker run git annex unused daily, and queue up transfers
of unused files to any remotes that will have them. The transfer retrying
code works for us here, so eg when a backup disk remote is plugged in,
any transfers to it are done. Once the unused files reach a remote,
they'll be removed locally as unwanted.
If the setup does not cause unused files to go to a remote, they'll pile
up, and the sanity checker detects this using some heuristics that are
pretty good -- 1000 unused files, or 10% of disk used by unused files,
or more disk wasted by unused files than is left free. Once it detects
this, it pops up an alert in the webapp, with a button to take action.
TODO: Webapp UI to configure this, and also the ability to launch an
immediate cleanup of all unused files.
This commit was sponsored by Simon Michael.
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Move stuff into Logs.NumCopies. Add a NumCopies newtype.
Better names for various serialization classes that are specific to one
thing or another.
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* numcopies: New command, sets global numcopies value that is seen by all
clones of a repository.
* The annex.numcopies git config setting is deprecated. Once the numcopies
command is used to set the global number of copies, any annex.numcopies
git configs will be ignored.
* assistant: Make the prefs page set the global numcopies.
This global numcopies setting is needed to let preferred content
expressions operate on numcopies.
It's also convenient, because typically if you want git-annex to preserve N
copies of files in a repo, you want it to do that no matter which repo it's
running in. Making it global avoids needing to warn the user about gotchas
involving inconsistent annex.numcopies settings.
(See changes to doc/numcopies.mdwn.)
Added a new variety of git-annex branch log file, that holds only 1 value.
Will probably be useful for other stuff later.
This commit was sponsored by Nicolas Pouillard.
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transferred.
Similar to the assistant, this honors any configured preferred content
expressions.
I am not entirely happpy with the implementation. It would be nicer if
the seek function returned a list of actions which included the individual
file gets and copies and drops, rather than the current list of calls to
syncContent. This would allow getting rid of the somewhat reundant display
of "sync file [ok|failed]" after the get/put display.
But, do that, withFilesInGit would need to somehow be able to construct
such a mixed action list. And it would be less efficient than the current
implementation, which is able to reuse several values between eg get and
drop.
Note that currently this does not try to satisfy numcopies when
getting/putting files (numcopies are of course checked when dropping
files!) This makes it like the assistant, and unlike get --auto
and copy --auto, which do duplicate files when numcopies is not yet
satisfied. I don't know if this is the right decision; it only seemed to
make sense to have this parallel the assistant as far as possible to start
with, since I know the assistant works.
This commit was sponsored by Øyvind Andersen Holm.
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it to the configuration for any ssh remotes previously created by the assistant. This avoids repeated prompts by ssh if the host key changes, instead syncing with such a remote will fail. Closes: #732602
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Batch detection is heuristic, so can sometimes fail. I observed one such
failure while starting up in a repository with 87000 files. After the first
several batches of ~5000 files, it fell out of batch mode, and never
re-entered it, and so made many more commits of a few files at a time
than necessary.
So, let's always use batch mode when in the startup scan. This avoids the
heuristic there, at least.
There is clearly also room to improve the heuristic. Possibly 10 files is
too high a bar to be found during a commit, on a system that can commit
quickly.
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Fixes a test case I received where a corrupted repo was repaired, but the
git-annex branch was not. The root of the problem was that the
MissingObject returned by the repair code was not necessarily a complete
set of all objects that might have been deleted during the repair.
So, stop trying to return that at all, and instead make the index file
checking code explicitly verify that each object the index uses is present.
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Note that I still need to think this through and make sure handling of open
files is safe. This is just for testing purposes.
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May fix permission problem on windows
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the full contents of files in the tree.
The assistant's commit code also always avoids git commit, for simplicity.
Indirect mode sync still does a git commit -a to catch unstaged changes.
Note that this means that direct mode sync no longer runs the pre-commit
hook or any other hooks git commit might call. The git annex pre-commit
hook action for direct mode is however explicitly run. (The assistant
already ran git commit with hooks disabled, so no change there.)
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The Upgrader avoids checking for upgrades on startup when it was just
upgraded. This avoids an upgrade loop if something goes wrong. One example
of something going wrong would be if the upgrade info file and the
distribution file get out of sync (or the distribution file is cached in
a proxy), so it thinks it has upgraded to a new version, but has really
not.
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upgrade is started
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When an automatic upgrade completes, or when the user clicks on the upgrade
button in one webapp, but also has it open in another browser window/tab,
we have a problem: The current web server is going to stop running in
minutes, but there is no way to send a redirect to the web browser to the
new url.
To solve this, used long polling, so the webapp is always listening for
urls it should redirect to. This allows globally redirecting every open
webapp. Works great! Tested with 2 web browsers with 2 tabs each.
May be useful for other purposes later too, dunno.
The overhead is 2 http requests per page load in the webapp. Due to yesod's
speed, this does not seem to noticibly delay it. Only 1 of the requests
could possibly block the page load, the other is async.
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Move button to enable automatic upgrades to an alert displayed after
successful upgrade. Unclutters the UI and makes psychological sense.
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Made alerts be able to have multiple buttons, so the alerts about upgrading
can have a button that enables automatic upgrades.
Implemented automatic upgrading when the program file has changed.
Note that when an automatic upgrade happens, the webapp displays an alert
about it for a few minutes, and then closes. This still needs work.
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cabal build!
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Not yet wired up to restart the assistant on upgrade; that needs careful
sanity checking to wait until the upgrade is done before restarting.
Used the DirWatcher here, so it gets events for any changes to the
directory containing the program file. (But not subdirs.) This is necessary
in order to detect when the file is renamed as part of the upgrade, which
an inotify on a single file would not detect. (Also, I have DirWatcher code,
but not FileWatcher code.)
Note that upgrades that remove or rename a whole directory tree containing
the executable will *not* trigger this code. So eg, deleting and replacing
the whole standalone tarball dir tree won't work -- but untarring it
over top will. So should dpkg package upgrades.
Added programPath, using a new GHC feature to find the full path to the
executable. The fallback code for old GHC or unsupported OS is less good;
its worst failure mode would be either failing to find the program, and so
not checking for upgrades, or finding a git-annex that's in PATH, but is
not the one running.
This commit was sponsored by John Roepke.
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The webapp will check twice a day, when the network is connected, to see if
it can download a distributon upgrade file. If a newer version is found,
display an upgrade alert.
This will need the autobuilders to set UPGRADE_LOCATION to the url
it can be downloaded from when building git-annex. Only builds with that
set need automatic upgrade alerts.
Currently, the upgrade page just requests the user manually download
and upgrade it. But, all the info is provided to do automated upgrades
in the future.
Note that urls used will need to all be https.
This commit was sponsored by Dirk Kraft.
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pairing process separately.
I was able to reproduce something very like this bug by starting
pairing separately on both computers under poor network conditions (ie,
weak wifi on my front porch). Neither computer showed an alert for the
PairReq messages it was seeing (intermittently) from the other.
So, I've made a new PairReq message that has not been seen before
always make the alert pop up, even if the assistant thinks it is
in the middle of its own pairing process (or even another pairing
process with a different box on the LAN).
(This shouldn't cause a rogue PairAck to disrupt a pairing process part
way through.)
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The msg contains a haskell-escaped string, so control characters in it can
also be escaped. So this didn't work before, really.
Got rid of the \n check, because current pairing messages actually do
contain a \n, after the ssh public key. Don't want to break
back-compatability.
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When starting up the assistant, it'll remind about the current
repository, if it doesn't have checks. And when a removable drive
is plugged in, it will remind if a repository on it lacks checks.
Since that might be annoying, the reminders can be turned off.
This commit was sponsored by Nedialko Andreev.
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Added a RemoteChecker thread, that waits for problems to be reported with
remotes, and checks if their git repository is in need of repair.
Currently, only failures to sync with the remote cause a problem to be
reported. This seems enough, but we'll see.
Plugging in a removable drive with a repository on it that is corrupted
does automatically repair the repository, as long as the corruption causes
git push or git pull to fail. Some types of corruption do not, eg
missing/corrupt objects for blobs that git push doesn't need to look at.
So, this is not really a replacement for scheduled git repository fscking.
But it does make the assistant more robust.
This commit is sponsored by Fernando Jimenez.
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(eg, on removable drives)
gcrypt remotes are not yet handled.
This commit was sponsored by Sören Brunk.
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Joey Hess