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git/t/t0410-partial-clone.sh
Jonathan Tan 43f25158ca fsck: support refs pointing to promisor objects
Teach fsck to not treat refs referring to missing promisor objects as an
error when extensions.partialclone is set.

For the purposes of warning about no default refs, such refs are still
treated as legitimate refs.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-05 09:46:05 -08:00

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#!/bin/sh
test_description='partial clone'
. ./test-lib.sh
delete_object () {
rm $1/.git/objects/$(echo $2 | sed -e 's|^..|&/|')
}
pack_as_from_promisor () {
HASH=$(git -C repo pack-objects .git/objects/pack/pack) &&
>repo/.git/objects/pack/pack-$HASH.promisor
}
promise_and_delete () {
HASH=$(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 &&
delete_object repo "$HASH"
}
test_expect_success 'missing reflog object, but promised by a commit, passes fsck' '
test_create_repo repo &&
test_commit -C repo my_commit &&
A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
C=$(git -C repo commit-tree -m c -p $A HEAD^{tree}) &&
# Reference $A only from reflog, and delete it
git -C repo branch my_branch "$A" &&
git -C repo branch -f my_branch my_commit &&
delete_object repo "$A" &&
# State that we got $C, which refers to $A, from promisor
printf "$C\n" | pack_as_from_promisor &&
# Normally, it fails
test_must_fail git -C repo fsck &&
# But with the extension, it succeeds
git -C repo config core.repositoryformatversion 1 &&
git -C repo config extensions.partialclone "arbitrary string" &&
git -C repo fsck
'
test_expect_success 'missing reflog object, but promised by a tag, passes fsck' '
rm -rf repo &&
test_create_repo repo &&
test_commit -C repo my_commit &&
A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
git -C repo tag -a -m d my_tag_name $A &&
T=$(git -C repo rev-parse my_tag_name) &&
git -C repo tag -d my_tag_name &&
# Reference $A only from reflog, and delete it
git -C repo branch my_branch "$A" &&
git -C repo branch -f my_branch my_commit &&
delete_object repo "$A" &&
# State that we got $T, which refers to $A, from promisor
printf "$T\n" | pack_as_from_promisor &&
git -C repo config core.repositoryformatversion 1 &&
git -C repo config extensions.partialclone "arbitrary string" &&
git -C repo fsck
'
test_expect_success 'missing reflog object alone fails fsck, even with extension set' '
rm -rf repo &&
test_create_repo repo &&
test_commit -C repo my_commit &&
A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
B=$(git -C repo commit-tree -m b HEAD^{tree}) &&
# Reference $A only from reflog, and delete it
git -C repo branch my_branch "$A" &&
git -C repo branch -f my_branch my_commit &&
delete_object repo "$A" &&
git -C repo config core.repositoryformatversion 1 &&
git -C repo config extensions.partialclone "arbitrary string" &&
test_must_fail git -C repo fsck
'
test_expect_success 'missing ref object, but promised, passes fsck' '
rm -rf repo &&
test_create_repo repo &&
test_commit -C repo my_commit &&
A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
# Reference $A only from ref
git -C repo branch my_branch "$A" &&
promise_and_delete "$A" &&
git -C repo config core.repositoryformatversion 1 &&
git -C repo config extensions.partialclone "arbitrary string" &&
git -C repo fsck
'
test_done