This will mostly just avoid a DB lookup, so things get marginally
faster. But in cases where there are many files using the same key, it
can be a more significant speedup.
Added overhead is one MVar lookup per call, which should be small
enough, since this happens after transferring or ingesting a file,
which is always a lot more work than that. It would be nice, though,
to move getGitConfig to AnnexRead, which there is an open todo about.
reconcileStaged was doing a redundant scan to scannAnnexedFiles.
It would probably make sense to move the body of scannAnnexedFiles
into reconcileStaged, the separation does not really serve any purpose.
Sponsored-by: Dartmouth College's Datalad project
This is quite a subtle edge case, see the bug report for full details.
The second git diff is needed only when there's a merge conflict.
It would be possible to speed it up marginally by using
--diff-filter=Unmerged, but probably not enough to bother with.
Sponsored-by: Graham Spencer on Patreon
It makes sense to keep the key used by the old version of an
associated file, until the merge conflict is resolved.
Note that, since in this case git diff is being run with --index, it's
not possible to use -1 or -3, which would let the keys
associated with the new versions of the file also be added. That would
be better, because it's possible that the local modification to the file
that caused the merge conflict has not yet gotten its new key recorded
in the db.
Opened a bug about a case this is thus not able to address.
Sponsored-by: Boyd Stephen Smith Jr. on Patreon