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.
Not sure if my reasoning about the races really holds.
It would certianly be possible to better guard against races by using
Linux-specific renameat2 with RENAME_EXCHANGE or RENAME_NOREPLACE.
Or by using link and relying on it not overwriting existing files -- but
that would need a filesystem that supports hard links and directory can
be used in filesystems that don't.
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.
This fixes a reversion in the ByteString conversion. The old code used
isSpace to decide when the metadata value needs to be base64 encoded,
and that incorrectly changed to only checking if it contained ' '.
Note that only '\n' and '\r' were added and not other sorts of
whitespace that isSpace matches, like '\t' and '\v'. Only the former
would cause problems.
Purifying exportActions will allow introspecting and modifying it,
which is needed to add progress bar display to it.
Only S3 and WebDAV ran an Annex action while constructing ExportActions.
There was a small performance gain from them doing that, since a
resource was able to be prepared and reused for multiple actions by
Command.Export.
As seen in commit 809cfbbd8a and
5d394023eb S3 and WebDAV actually create a
new handle for each access in normal, non-export use. It doesn't seem
worth making export use of them marginally more efficient than normal
use. It would be better to do that work upfront when constructing the
remote. Or perhaps use a MVar to cache a handle.
This commit was sponsored by Nick Piper on Patreon.
* 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.
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..
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.
The new parser is significantly stricter than the old one:
The old file2key allowed the fields to come in any order,
but the new one requires the fixed order that git-annex has always used.
Hopefully this will not cause any breakage.
And the old file2key allowed eg SHA1-m1-m2-m3-m4-m5-m6--xxxx
while the new does not allow duplication of fields. This could potentially
improve security, because allowing lots of extra junk like that in a key
could potentially be used in a SHA1 collision attack, although the current
attacks need binary data and not this kind of structured numeric data.
Speed improved of course, and fairly substantially, in microbenchmarks:
benchmarking old/key2file
time 2.264 μs (2.257 μs .. 2.273 μs)
1.000 R² (1.000 R² .. 1.000 R²)
mean 2.265 μs (2.260 μs .. 2.275 μs)
std dev 21.17 ns (13.06 ns .. 39.26 ns)
benchmarking new/key2file'
time 1.744 μs (1.741 μs .. 1.747 μs)
1.000 R² (1.000 R² .. 1.000 R²)
mean 1.745 μs (1.742 μs .. 1.751 μs)
std dev 13.55 ns (9.099 ns .. 21.89 ns)
benchmarking old/file2key
time 6.114 μs (6.102 μs .. 6.129 μs)
1.000 R² (1.000 R² .. 1.000 R²)
mean 6.118 μs (6.106 μs .. 6.143 μs)
std dev 55.00 ns (30.08 ns .. 100.2 ns)
benchmarking new/file2key'
time 1.791 μs (1.782 μs .. 1.801 μs)
1.000 R² (0.999 R² .. 1.000 R²)
mean 1.792 μs (1.785 μs .. 1.804 μs)
std dev 32.46 ns (20.59 ns .. 50.82 ns)
variance introduced by outliers: 19% (moderately inflated)
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.
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.
MetaField was already limited to alphanumerics, so it makes sense to use
Text for it.
Note that technically a UUID can contain invalid UTF-8, and so
remoteMetaDataPrefix's use of T.pack . fromUUID could replace non-UTF8
values with '?' or whatever. In practice, a UUID is usually also text,
I only kept open the possibility of it containing invalid UTF-8 to avoid
breaking parsing of strange UUIDs in git-annex branch files. So, I
decided to let this edge case slip by.
Have not updated the rest of the code base yet for this change, as the
change took 2.5 hours longer than I expected to get working properly.
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.
* 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.
Note that it does not prevent storing p2p access tokens or multicast
encryption keys, since those are not cached; the previous commit
established the distinction.
How well this works depends on how often getRemoteCredPair is called and
how expensive it is. In some cases setting this will result in an annoying
number of gpg password prompts and/or slowdowns due to reading creds
from the git-annex branch and decrypting, which could be improved by calling
getRemoteCredPair less often.
This commit was sponsored by Ilya Shlyakhter on Patreon.
Install new git hooks in this version.
This does beg the question of what to do if git later gets eg a
post-smudge hook, that could run git-annex smudge --update. I think the
thing to do in that case would be to make git-annex smudge --update
install the new hooks. That way, as the user uses git-annex, the hook
would be created pretty quickly and without needing any extra syscalls
except for when git-annex smudge --update is called.
I considered doing something like that for installation of the
post-checkout and post-merge hooks, which would have avoided the need
for v7. But the only place it was cheap to do it would be in git-annex smudge
which could cheaply notice that smudge.log didn't exist yet and so know
the hooks needed to be installed. But since smudge used to populate pointer
files, it would be quite surprising if a single git checkout/merge failed
to update the work tree, and so that idea didn't work out.
The other reason for v7 is psychological -- users don't need to worry
about whether they might be running an old version of git-annex that
doesn't support their v7 repository very well. And bug reports about
"v6" have gotten a bit of a bad association in my head since they often
hit one of the known limitations and didn't realize it was experimental.
newtyped RepoVersion Int to avoid needing 2 comparisons in
versionSupportsUnlockedPointers etc. Also it's just nicer.
This commit was sponsored by John Pellman on Patreon.
Both Command.Sync and Annex.Ingest had their own versions of this.
The one in Annex.Ingest used Git.Branch.currentUnsafe, but does not seem
to need it. That is only checking to see if it's in an adjusted unlocked
branch, and when in an adjusted branch, the branch does in fact exist,
so the added check that Git.Branch.current does is fine.
This commit was sponsored by Denis Dzyubenko on Patreon.
Running git-annex linux builds in termux seems to work well enough that the
only reason to keep the Android app would be to support Android 4-5, which
the old Android app supported, and which I don't know if the termux method
works on (although I see no reason why it would not).
According to [1], Android 4-5 remains on around 29% of devices, down from
51% one year ago.
[1] https://www.statista.com/statistics/271774/share-of-android-platforms-on-mobile-devices-with-android-os/
This is a rather large commit, but mostly very straightfoward removal of
android ifdefs and patches and associated cruft.
Also, removed support for building with very old ghc < 8.0.1, and with
yesod < 1.4.3, and without concurrent-output, which were only being used
by the cross build.
Some documentation specific to the Android app (screenshots etc) needs
to be updated still.
This commit was sponsored by Brett Eisenberg on Patreon.
Added annex.jobs setting, which is like using the -J option.
Of course, -J overrides annex.jobs.
This commit was sponsored by Trenton Cronholm on Patreon.
Added remote.name.annex-security-allow-unverified-downloads, a per-remote
setting for annex.security.allow-unverified-downloads.
This commit was sponsored by Brock Spratlen on Patreon.
Added annex.maxextensionlength for use cases where extensions longer than 4
characters are needed.
This commit was sponsored by Henrik Riomar on Patreon.
Since the same key can be stored in a versioned S3 bucket multiple times
with different version IDs, this allows tracking them all. Not currently
needed, but if we ever want to drop from a versioned S3 bucket, we'll
need to know them all.
This commit was supported by the NSF-funded DataLad project.
Actually very straightforward reuse of the metadata log file code.
Although I had to add a todo item as git-annex forget won't clean up
dead remote's metadata yet.
This would be worth adding to the external special remote interface
sometime. Have not opened a todo though, guess I'll wait until something
needs it.
This commit was supported by the NSF-funded DataLad project.
Make `git annex export` check appendonly when removing a file from an
export, and not update the location log, since the remote still contains
the content.
This commit was supported by the NSF-funded DataLad project.
Does nothing yet.
Considered making bup readonly, but while the content can't be removed,
it is able to delete a branch, so didn't.
This commit was supported by the NSF-funded DataLad project.
