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Avoid unncessary write to the location log when a file is unlocked and then added back with unchanged content.

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Implemented with no additional overhead of compares etc.

This is safe to do for presence logs because of their locality of change;
a given repo's presence logs are only ever changed in that repo, or in a
repo that has just been actively changing the content of that repo.

So, we don't need to worry about a split-brain situation where there'd
be disagreement about the location of a key in a repo. And so, it's ok to
not update the timestamp when that's the only change that would be made
due to logging presence info.
This commit is contained in:
Joey Hess 2015-10-12 14:46:28 -04:00
parent 82ba8c9a6a
commit f9adb905fc
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7 changed files with 65 additions and 14 deletions
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debian/changelog vendored
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@ -30,11 +30,13 @@ git-annex (5.20150931) UNRELEASED; urgency=medium
* copy --auto was checking the wrong repo's preferred content.
(--from was checking what --to should, and vice-versa.)
Fixed this bug, which was introduced in version 5.20150727.
* Avoid unncessary write to the location log when a file is unlocked
and then added back with unchanged content.
* Debian: Add torrent library to build-depends as it's packaged now,
and stop recommending bittornado | bittorrent.
* Debian: Remove dependency on transformers library, as it is now
included in ghc.
-- Joey Hess <id@joeyh.name> Thu, 01 Oct 2015 12:42:56 -0400
git-annex (5.20150930) unstable; urgency=medium