This way no history is lost, neither what was exported to the remote,
or the history of changes that is imported from it. No complicated
correlation of two possibly very different histories is needed, just
record what we know and then git merge will do a good job.
Also, it notices when the remote tracking branch doesn't need to be updated,
and avoids doing anything, so noop remotes are super cheap.
The only catch here is that, since the commits generated for imports
from the remote don't have a stable date or author/committer, each
(non-noop) import generates different commits for the same imported
trees. So, when the imported remote tracking branch is merged into master
and then a change is imported again, there will be an extra series of
commits, which will get more and more expensive each time.
This seems to call for making stable commits for imports. Also that
seems a good idea to make importing in several repositories have the
same result.
* Added mimeencoding= term to annex.largefiles expressions.
This is probably mostly useful to match non-text files with eg
"mimeencoding=binary"
* git-annex matchexpression: Added --mimeencoding option.
Switch listContents to being a proper CommandStart, so if it throws an
exception, it will be treated like any other command action that fails.
downloadImport apparently does not ever throw an exception,
and itself uses commandAction, so it can't be a CommandStart.
Fix bug that caused importing from a special remote to repeatedly download
unchanged files when multiple files in the remote have the same content.
Unfortunately, there's really no good way to remove a uniqueness constraint
from a sqlite database. The best that can be done is to make a new table
and copy the data over. But that would require using persistent's
migrations or raw sql, and I don't want to do either.
Instead, a sledgehammer approach: Renamed .git/annex/cid to
.git/annex/cids. When the new database doesn't exist, it will be populated
from the git-annex branch.
Noting deletes the old database. Don't want to delete it out from under
some long-running git-annex process that might be using it. It could
eventually be deleted. But this is such a new feature, probably few repos
have the database in any case.
This does not change the overall license of the git-annex program, which
was already AGPL due to a number of sources files being AGPL already.
Legally speaking, I'm adding a new license under which these files are
now available; I already released their current contents under the GPL
license. Now they're dual licensed GPL and AGPL. However, I intend
for all my future changes to these files to only be released under the
AGPL license, and I won't be tracking the dual licensing status, so I'm
simply changing the license statement to say it's AGPL.
(In some cases, others wrote parts of the code of a file and released it
under the GPL; but in all cases I have contributed a significant portion
of the code in each file and it's that code that is getting the AGPL
license; the GPL license of other contributors allows combining with
AGPL code.)
untested
This won't be super slow, but it does need to diff two likely large
trees, and since the git-annex branch rarely sits still, it will most
likely be run at the beginning of every import.
A possible speed improvement would be to only run this when the database
did not contain a ContentIdentifier. But that would only speed up
imports when there is no new version of a file on the special remote,
at most renames of existing files being imported.
A better speed improvement would be to record something in the git-annex
branch that indicates when an import has been run, and only do the diff
if the git-annex branch has record of a newer import than we've seen
before. Then, it would only run when there is in fact new
ContentIdentifier information available from a remote. Certianly doable,
but didn't want to complicate things yet.
For now, it's only allowed when exporttree=yes is also set.
That simplified the implementation, but could later be changed if
there's a remote that makes sense to be an import but not an export.
However, it may work just as well to make a remote be readonly to
prevent export to it while still allowing import.
This does not avoid all possible races, but it does avoid all likely
ones, and is demonstratably better than git's own handling of races
where files get modified at the same time as it's updating the working
tree.
The main thing this won't detect are not unlikely races where part
of a file gets changed while it's being copied and then the file is
restored to its original condition before the modification check.
No, it's more likely that the limitations of checking inode, size,
and mtime won't detect certian modifications, involving eg mmapped
files.
Made some api changes.
listImportableContents needs to provide the size
of the data, so the downloader can check disk free space.
retrieveExportWithContentIdentifier is passed the filepath to write to
Use temporary "CID" key during download of a ContentIdentifier from a
remote, so withTmp can be used and then move the content to the real key
once it's known.
Added graftTree but it's buggy.
Should use graftTree in Annex.Branch.graftTreeish; it will be faster
than the current implementation there.
Started Annex.Import, but untested and it doesn't yet handle tree
grafting.
Does not yet have a way to update with new information from the
git-annex branch, which will be needed when multiple repos are importing
from the same remote.
Avoid performing repository fixups for submodules and git-worktrees
when there's a .noannex file that will prevent git-annex from being
used in the repository.
This change is ok as long as the .noannex file is really going to prevent
git-annex from being used. But, init --force could override the file.
Which would result in the repo being initialized without the fixups
having run.
To avoid that situation decided to change init, to not let --force be used
to override a .noannex file. Instead the user can just delete the file.
If the worktree file already exists, and is annexed and uses the same
key, avoid failing, nothing needs to be done.
Had to add lookupFileNotHidden to handle the case where an adjust --hide-missing
is in use, and the worktree file was hidden due to the object content
being missing. lookupFile would return the key of the hidden file,
but it makes sense that after fromkey succeeds, the worktree must
contain the file it was supposed to set up.
Need to create the directory after the lock is held, not before.
The other racing process would need to shut down at just the wrong time,
running cleanupOtherTmp.
This commit was sponsored by Boyd Stephen Smith Jr. on Patreon.
I am very doubtful that commit 613e747d91
was right about this doing anything, and I've verified that without it,
ctrl-c sends sigINT to child processes, and git-annex get does not
continue to the next item.
It seems likely that the real problem back then was something catching
the async exception.
Hard to see how installing a default signal handler could cause any
change from default behavior either.
One reason to want to get rid of this cruft now is that tasty has a
sigINT handler of its own, and this would override it.
(Tasty is not currently setting that handler up the way git-annex uses
it, due to a problem in tasty, but that will hopefully change.)
* Switch to using .git/annex/othertmp for tmp files other than partial
downloads, and make stale files left in that directory when git-annex
is interrupted be cleaned up promptly by subsequent git-annex processes.
* The .git/annex/misctmp directory is no longer used and git-annex will
delete anything lingering in there after it's 1 week old.
Also, in Annex.Ingest, made the filename it uses in the tmp dir be
prefixed with "ingest-" to avoid potentially using a filename used by
some other code.
Adding that field broke the Read/Show serialization back-compat,
and also the Eq and Ord instances were not blinded to it, which broke
git annex fsck and probably more.
I think that the new approach used in formatKeyVariety will be nearly
as fast, but have not benchmarked it.
This reverts commit 4536c93bb2.
That broke Read/Show of a Key, and unfortunately Key is read in at least
one place; the GitAnnexDistribution data type.
It would be worth bringing this optimisation back, but it would need
either a custom Read/Show instance that preserves back-compat, or
wrapping Key in a data type that contains the serialization, or changing
how GitAnnexDistribution is serialized.
Also, the Eq instance would need to compare keys with and without a
cached seralization the same.
The builder produces a lazy ByteString, and L.toStrict has to copy it,
but needing to use the builder is no longer to common case; the
serialization will normally be cached already as a strict ByteString,
and this avoids keyFile' needing to use L.toStrict . serializeKey'
This will speed up the common case where a Key is deserialized from
disk, but is then serialized to build eg, the path to the annex object.
It means that every place a Key has any of its fields changed, the cache
has to be dropped. I've grepped and found them all. But, it would be
better to avoid that gotcha somehow..
Now there's a ByteString used all the way from disk to Key.
The main complication in this conversion was the use of fromInternalGitPath
in several places to munge things on Windows. The things that used that
were changed to parse the ByteString using either path separator.
Also some code that had read from files to a String lazily was changed
to read a minimal strict ByteString.
A keyName could contain "/", though this is unlikely and certianly only
ever could happen with WORM keys.
The change to addunused to escape that is no problem at all.
The change to VariantFile to escape it means that different versions of
git-annex could resolve a merge conflict differently in this case, which
is unfortunate. There would be different .variant files used, so the two
resolutions would themselves merge together without additional
conflicts, but the user would have to clean up the extra .variant
files.
What these generate is not really suitable to be used as a filename,
which is why keyFile and fileKey further escape it. These are just
serializing Keys.
Also removed a quickcheck test that was very unlikely to test anything
useful, since it relied on random chance creating something that looks
like a serialized key. The other test is sufficient for testing what
that was intended to test anyway.
Not likely to be any speed gain here, but this completes porting every
log file over.
And, it let me get rid of code copied from ghc and modified, so
simplifying the licensing.
This preserves the workaround for the old bug that caused NoUUID items
to be stored in the log, prefixing log lines with " ". It's now handled
implicitly, by using takeWhile1 (/= ' ') to get the uuid.
There is a behavior change from the old parser, which split the value
into words and then recombined it. That meant that "foo bar" and "foo\tbar"
came out as "foo bar". That behavior was not documented, and seems
surprising; it meant that after a git-annex describe here "foo bar",
you wouldn't get that same string back out when git-annex displayed repo
descriptions.
Otoh, some other parsers relied on the old behavior, and the attoparsec
rewrites had to deal with the issue themselves...
For group.log, there are some edge cases around the user providing a
group name with a leading or trailing space. The old parser would ignore
such excess whitespace. The new parser does too, because the alternative
is to refuse to parse something like " group1 group2 " due to excess
whitespace, which would be even more confusing behavior.
The only git-annex branch log file that is not converted to attoparsec
and bytestring-builder now is transitions.log.
There should be some speed gains here, especially for chunk and remote
state logs, which are queried once per key.
Now only old-format uuid-based logs still need to be converted to attoparsec.
Mostly didn't push the ByteStrings down very deep, but all of these log
files are not written to frequently at all, so slight remaining
innefficiency doesn't matter.
In Logs.UUID, removed the fixBadUUID code that cleaned up after a bug in
git-annex versions 3.20111105-3.20111110. In the unlikely event that a repo was
last touched by that ancient git-annex version, the descriptions of remotes
would appear missing when used with this version of git-annex. That is such minor
breakage, and so unlikely to still be a problem for any repos, that it was not
worth forward-porting that code to ByteString.
Probably not any particular speedup in this, since most of these logs
are not written to often. Possibly chunk log writing is sped up, but
writes to chunk logs are interleaved with expensive data transfers to
remotes, so unlikely to be a noticiable speedup.
Most of the individual logs are not converted yet, only presense logs
have an efficient ByteString Builder implemented so far. The rest
convert to and from String.
This should make == comparison of UUIDs somewhat faster, and perhaps a
few other operations around maps of UUIDs etc.
FromUUID/ToUUID are used to convert String, which is still used for all
IO of UUIDs. Eventually the hope is those instances can be removed,
and all git-annex branch log files etc use ByteString throughout, for a
real speed improvement.
Note the use of fromRawFilePath / toRawFilePath -- while a UUID usually
contains only alphanumerics and so could be treated as ascii, it's
conceivable that some git-annex repository has been initialized using
a UUID that is not only not a canonical UUID, but contains high unicode
or invalid unicode. Using the filesystem encoding avoids any problems
with such a thing. However, a NUL in a UUID seems extremely unlikely,
so I didn't use encodeBS / decodeBS to avoid their extra overhead in
handling NULs.
The Read/Show instance for UUID luckily serializes the same way for
ByteString as it did for String.
downloadUrl uses meteredFile, which sets up one progress meter,
and Remote.Web also uses metered, so two progress meters are displayed for
the same download.
Reversion introduced with the http-conduit switch in
c34152777b -- I don't know why the extra
call to metered was added there.
When -J is not used, the extra progress meter didn't display,
but an extra blank line did get output, which is also fixed.
This commit was sponsored by John Pellman on Patreon.
init: When --version=5 is passed on a crippled filesystem, use a v5 direct
mode repo as requested, rather than upgrading to v7 adjusted unlocked.
Fixed test suite on crippled filesystems, making it request --version=5
to test direct mode.
This fixes a bug with the numcopies counting when using sync --content.
It did not always pass the local repo uuid to handleDropsFrom, and so the
numcopies counting was off by one, and unwanted local content would only be
dropped when there were numcopies+1 remote copies.
Also, support dropping local content that has reached an
exporttree remote that is not untrusted (currently only S3 remotes
with versioning).
* Fix bug upgrading from direct mode to v7: when files in the repository
were already committed as v7 unlocked files elsewhere, and the
content was present in the direct mode repository, the annexed files
got their full content checked into git.
* Fix bug that caused v7 unlocked files in a direct mode repository
to get locked when committing.
This commit was sponsored by Nick Piper on Patreon.
When a file was already unlocked, but the annex object was present, the
upgrade process populated the unlocked file, but neglected to update the
index.
This commit was sponsored by Jochen Bartl on Patreon.
* findref: Support file matching options: --include, --exclude,
--want-get, --want-drop, --largerthan, --smallerthan, --accessedwithin
* Commands supporting --branch now apply file matching options --include,
--exclude, --want-get, --want-drop to filenames from the branch.
Previously, combining --branch with those would fail to match anything.
* add, import, findref: Support --time-limit.
This commit was sponsored by Jake Vosloo on Patreon.
dropunused: When an unused object file has gotten modified, eg due to
annex.thin being set, don't silently skip it, but display a warning and let
--force drop it.
This commit was sponsored by Ethan Aubin.
* init: When a crippled filesystem causes an adjusted unlocked branch to
be used, set repo version to 7, which it neglected to do before.
* init: When on a crippled filesystem, and the git version is too old
to use an adjusted unlocked branch, fall back to using direct mode.
This commit was sponsored by Ilya Shlyakhter on Patreon.
Seems that youtube-dl --get-filename on a playlist lists all the filenames
for the playlist, which can take quite some time. The code already only
took the first name, so --no-playlist can speed it up a lot.
This commit was sponsored by Brett Eisenberg on Patreon.
