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clone --dissociate: avoid locking pack files

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When `git clone` is asked to dissociate the repository from the
reference repository whose objects were used, it is quite possible that
the pack files need to be repacked. In that case, the pack files need to
be deleted that were originally hard-links to the reference repository's
pack files.

On platforms where a file cannot be deleted if another process still
holds a handle on it, we therefore need to take pains to release all
pack files and indexes before dissociating.

This fixes https://github.com/git-for-windows/git/issues/446

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This commit is contained in:
Johannes Schindelin
2015-09-28 21:12:31 +02:00
parent ec5e5c6b83
commit 7272771770
2 changed files with 29 additions and 1 deletions
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9
builtin/clone.c
View File

@@ -1066,8 +1066,15 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
transport_unlock_pack(transport);
transport_disconnect(transport);
if (option_dissociate)
if (option_dissociate) {
struct packed_git *p;
for (p = packed_git; p; p = p->next) {
close_pack_windows(p);
close_pack_index(p);
}
dissociate_from_references();
}
junk_mode = JUNK_LEAVE_REPO;
err = checkout();

21
t/t5700-clone-reference.sh
View File

@@ -188,5 +188,26 @@ test_expect_success 'clone and dissociate from reference' '
test_must_fail git -C R fsck &&
git -C S fsck
'
test_expect_success 'clone, dissociate from partial reference and repack' '
rm -fr P Q R &&
git init P &&
(
cd P &&
test_commit one &&
git repack &&
test_commit two &&
git repack
) &&
git clone --bare P Q &&
(
cd P &&
git checkout -b second &&
test_commit three &&
git repack
) &&
git clone --bare --dissociate --reference=P Q R &&
ls R/objects/pack/*.pack >packs.txt &&
test_line_count = 1 packs.txt
'
test_done