Commit graph

14 commits

Author SHA1 Message Date
Joey Hess
7af55de83c
optimisation: use graftTree to remember the export branch
Sped up git-annex export in repositories with lots of keys.

Old method read whole git-annex branch tree into memory.
2019-02-22 11:16:22 -04:00
Joey Hess
ad1d422dd7
fix false positive in export conflict detection
Like the earlier fixed one in Command.Export, it occurred when the same
tree was exported by multiple clones. Previous fix was incomplete since
several other places looked at the list of exported trees to detect when
there was an export conflict. Added a single unified function to avoid
missing any places it needed to be fixed.

This commit was sponsored by mo on Patreon.
2019-01-30 12:36:30 -04:00
Joey Hess
66603d6f75
attoparsec parsers for all new-format uuid-based logs
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.
2019-01-10 13:30:36 -04:00
Joey Hess
2fef43dd71
convert all per-uuid log files to use Builder
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.
2019-01-09 14:00:35 -04:00
Joey Hess
2d46038754
converting more log files to use Builder
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.
2019-01-09 13:06:37 -04:00
Joey Hess
bfc9039ead
convert git-annex branch access to ByteStrings and Builders
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.
2019-01-03 13:21:48 -04:00
Joey Hess
b31d682539
cleanup imports 2017-09-13 12:53:19 -04:00
Joey Hess
f8fd66d3f8
fix compaction of export.log
It was not getting old lines removed, because the tree graft confused
the updater, so it union merged from the previous git-annex branch,
which still contained the old lines. Fixed by carefully using setIndexSha.

This commit was supported by the NSF-funded DataLad project.
2017-09-12 18:30:36 -04:00
Joey Hess
c8ed941a26
change export.log format to support multiple export remotes
This breaks backwards compatibility, but only with unreleased versions of
git-annex, which I think is acceptable.

This commit was supported by the NSF-funded DataLad project.
2017-09-12 17:45:52 -04:00
Joey Hess
9c3622882b
export: cache connections for S3 and webdav 2017-09-12 16:59:04 -04:00
Joey Hess
8de516ad2c
leave export logged as incomplete if initial renames fail
This way, the temp files that might be left due to failure will be
cleaned up next time.

Also, nub the list of incomplete exports to avoid repeatedly adding the
same tree to it when running export repeatedly when it's failing.

This commit was supported by the NSF-funded DataLad project.
2017-09-12 14:21:15 -04:00
Joey Hess
0fa948b402
record incomplete exports in export.log
Not yet used, but essential for resuming cleanly.

Note that, in normmal operation, only one commit is made to export.log
during an export; the incomplete version only gets to the journal and
is then overwritten.

This commit was supported by the NSF-funded DataLad project.
2017-09-06 13:45:03 -04:00
Joey Hess
5483ea90ec
graft exported tree into git-annex branch
So it will be available later and elsewhere, even after GC.

I first though to use git update-index to do this, but feeding it a line
with a tree object seems to always cause it to generate a git subtree
merge. So, fell back to using the Git.Tree interface to maniupulate the
trees, and not involving the git-annex branch index file at all.

This commit was sponsored by Andreas Karlsson.
2017-08-31 18:06:49 -04:00
Joey Hess
978885247e
implement export.log and resolve export conflicts
Incremental export updates work now too.

This commit was sponsored by Anthony DeRobertis on Patreon.
2017-08-31 15:47:23 -04:00