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remove .keep pack lock files when done with refs update

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This makes both git-fetch and git-push (fetch-pack and receive-pack)
safe against a possible race with aparallel git-repack -a -d that could
prune the new pack while it is not yet referenced, and remove the .keep
file after refs have been updated.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Nicolas Pitre
2006-11-01 17:06:25 -05:00
committed by Junio C Hamano
parent 9ca4a201ea
commit 576162a45f
4 changed files with 116 additions and 39 deletions
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11
Documentation/git-index-pack.txt
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@ -69,6 +69,17 @@ OPTIONS
locate any which have outlived their usefulness.
Note
----
Once the index has been created, the list of object names is sorted
and the SHA1 hash of that list is printed to stdout. If --stdin was
also used then this is prefixed by either "pack\t", or "keep\t" if a
new .keep file was successfully created. This is useful to remove a
.keep file used as a lock to prevent the race with gitlink:git-repack[1]
mentioned above.
Author
------
Written by Sergey Vlasov <vsu@altlinux.ru>