mirrors/git
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

gc: do not repack promisor packfiles

Browse Source 
Teach gc to stop traversal at promisor objects, and to leave promisor
packfiles alone. This has the effect of only repacking non-promisor
packfiles, and preserves the distinction between promisor packfiles and
non-promisor packfiles.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Tan
2017-12-08 15:27:16 +00:00
committed by Junio C Hamano
parent df11e19648
commit 0c16cd499d
6 changed files with 114 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

54
t/t0410-partial-clone.sh
View File

@ -10,14 +10,16 @@ delete_object () {
pack_as_from_promisor () {
HASH=$(git -C repo pack-objects .git/objects/pack/pack) &&
>repo/.git/objects/pack/pack-$HASH.promisor
>repo/.git/objects/pack/pack-$HASH.promisor &&
echo $HASH
}
promise_and_delete () {
HASH=$(git -C repo rev-parse "$1") &&
git -C repo tag -a -m message my_annotated_tag "$HASH" &&
git -C repo rev-parse my_annotated_tag | pack_as_from_promisor &&
git -C repo tag -d my_annotated_tag &&
# tag -d prints a message to stdout, so redirect it
git -C repo tag -d my_annotated_tag >/dev/null &&
delete_object repo "$HASH"
}
@ -261,6 +263,54 @@ test_expect_success 'rev-list accepts missing and promised objects on command li
git -C repo rev-list --exclude-promisor-objects --objects "$COMMIT" "$TREE" "$BLOB"
'
test_expect_success 'gc does not repack promisor objects' '
rm -rf repo &&
test_create_repo repo &&
test_commit -C repo my_commit &&
TREE_HASH=$(git -C repo rev-parse HEAD^{tree}) &&
HASH=$(printf "$TREE_HASH\n" | pack_as_from_promisor) &&
git -C repo config core.repositoryformatversion 1 &&
git -C repo config extensions.partialclone "arbitrary string" &&
git -C repo gc &&
# Ensure that the promisor packfile still exists, and remove it
test -e repo/.git/objects/pack/pack-$HASH.pack &&
rm repo/.git/objects/pack/pack-$HASH.* &&
# Ensure that the single other pack contains the commit, but not the tree
ls repo/.git/objects/pack/pack-*.pack >packlist &&
test_line_count = 1 packlist &&
git verify-pack repo/.git/objects/pack/pack-*.pack -v >out &&
grep "$(git -C repo rev-parse HEAD)" out &&
! grep "$TREE_HASH" out
'
test_expect_success 'gc stops traversal when a missing but promised object is reached' '
rm -rf repo &&
test_create_repo repo &&
test_commit -C repo my_commit &&
TREE_HASH=$(git -C repo rev-parse HEAD^{tree}) &&
HASH=$(promise_and_delete $TREE_HASH) &&
git -C repo config core.repositoryformatversion 1 &&
git -C repo config extensions.partialclone "arbitrary string" &&
git -C repo gc &&
# Ensure that the promisor packfile still exists, and remove it
test -e repo/.git/objects/pack/pack-$HASH.pack &&
rm repo/.git/objects/pack/pack-$HASH.* &&
# Ensure that the single other pack contains the commit, but not the tree
ls repo/.git/objects/pack/pack-*.pack >packlist &&
test_line_count = 1 packlist &&
git verify-pack repo/.git/objects/pack/pack-*.pack -v >out &&
grep "$(git -C repo rev-parse HEAD)" out &&
! grep "$TREE_HASH" out
'
LIB_HTTPD_PORT=12345 # default port, 410, cannot be used as non-root
. "$TEST_DIRECTORY"/lib-httpd.sh
start_httpd