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https://github.com/git/git
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5d19e8138d
Currently, repack does not touch promisor packfiles at all, potentially causing the performance of repositories that have many such packfiles to drop. Therefore, repack all promisor objects if invoked with -a or -A. This is done by an additional invocation of pack-objects on all promisor objects individually given, which takes care of deduplication and allows the resulting packfiles to respect flags such as --max-pack-size. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
415 lines
13 KiB
Bash
Executable file
415 lines
13 KiB
Bash
Executable file
#!/bin/sh
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test_description='partial clone'
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. ./test-lib.sh
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delete_object () {
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rm $1/.git/objects/$(echo $2 | sed -e 's|^..|&/|')
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}
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pack_as_from_promisor () {
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HASH=$(git -C repo pack-objects .git/objects/pack/pack) &&
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>repo/.git/objects/pack/pack-$HASH.promisor &&
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echo $HASH
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}
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promise_and_delete () {
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HASH=$(git -C repo rev-parse "$1") &&
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git -C repo tag -a -m message my_annotated_tag "$HASH" &&
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git -C repo rev-parse my_annotated_tag | pack_as_from_promisor &&
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# tag -d prints a message to stdout, so redirect it
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git -C repo tag -d my_annotated_tag >/dev/null &&
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delete_object repo "$HASH"
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}
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test_expect_success 'extensions.partialclone without filter' '
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test_create_repo server &&
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git clone --filter="blob:none" "file://$(pwd)/server" client &&
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git -C client config --unset core.partialclonefilter &&
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git -C client fetch origin
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'
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test_expect_success 'missing reflog object, but promised by a commit, passes fsck' '
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rm -rf repo &&
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test_create_repo repo &&
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test_commit -C repo my_commit &&
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A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
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C=$(git -C repo commit-tree -m c -p $A HEAD^{tree}) &&
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# Reference $A only from reflog, and delete it
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git -C repo branch my_branch "$A" &&
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git -C repo branch -f my_branch my_commit &&
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delete_object repo "$A" &&
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# State that we got $C, which refers to $A, from promisor
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printf "$C\n" | pack_as_from_promisor &&
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# Normally, it fails
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test_must_fail git -C repo fsck &&
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# But with the extension, it succeeds
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git -C repo config core.repositoryformatversion 1 &&
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git -C repo config extensions.partialclone "arbitrary string" &&
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git -C repo fsck
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'
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test_expect_success 'missing reflog object, but promised by a tag, passes fsck' '
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rm -rf repo &&
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test_create_repo repo &&
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test_commit -C repo my_commit &&
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A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
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git -C repo tag -a -m d my_tag_name $A &&
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T=$(git -C repo rev-parse my_tag_name) &&
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git -C repo tag -d my_tag_name &&
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# Reference $A only from reflog, and delete it
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git -C repo branch my_branch "$A" &&
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git -C repo branch -f my_branch my_commit &&
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delete_object repo "$A" &&
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# State that we got $T, which refers to $A, from promisor
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printf "$T\n" | pack_as_from_promisor &&
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git -C repo config core.repositoryformatversion 1 &&
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git -C repo config extensions.partialclone "arbitrary string" &&
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git -C repo fsck
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'
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test_expect_success 'missing reflog object alone fails fsck, even with extension set' '
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rm -rf repo &&
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test_create_repo repo &&
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test_commit -C repo my_commit &&
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A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
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B=$(git -C repo commit-tree -m b HEAD^{tree}) &&
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# Reference $A only from reflog, and delete it
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git -C repo branch my_branch "$A" &&
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git -C repo branch -f my_branch my_commit &&
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delete_object repo "$A" &&
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git -C repo config core.repositoryformatversion 1 &&
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git -C repo config extensions.partialclone "arbitrary string" &&
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test_must_fail git -C repo fsck
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'
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test_expect_success 'missing ref object, but promised, passes fsck' '
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rm -rf repo &&
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test_create_repo repo &&
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test_commit -C repo my_commit &&
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A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
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# Reference $A only from ref
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git -C repo branch my_branch "$A" &&
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promise_and_delete "$A" &&
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git -C repo config core.repositoryformatversion 1 &&
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git -C repo config extensions.partialclone "arbitrary string" &&
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git -C repo fsck
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'
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test_expect_success 'missing object, but promised, passes fsck' '
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rm -rf repo &&
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test_create_repo repo &&
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test_commit -C repo 1 &&
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test_commit -C repo 2 &&
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test_commit -C repo 3 &&
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git -C repo tag -a annotated_tag -m "annotated tag" &&
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C=$(git -C repo rev-parse 1) &&
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T=$(git -C repo rev-parse 2^{tree}) &&
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B=$(git hash-object repo/3.t) &&
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AT=$(git -C repo rev-parse annotated_tag) &&
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promise_and_delete "$C" &&
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promise_and_delete "$T" &&
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promise_and_delete "$B" &&
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promise_and_delete "$AT" &&
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git -C repo config core.repositoryformatversion 1 &&
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git -C repo config extensions.partialclone "arbitrary string" &&
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git -C repo fsck
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'
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test_expect_success 'missing CLI object, but promised, passes fsck' '
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rm -rf repo &&
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test_create_repo repo &&
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test_commit -C repo my_commit &&
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A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
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promise_and_delete "$A" &&
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git -C repo config core.repositoryformatversion 1 &&
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git -C repo config extensions.partialclone "arbitrary string" &&
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git -C repo fsck "$A"
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'
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test_expect_success 'fetching of missing objects' '
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rm -rf repo &&
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test_create_repo server &&
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test_commit -C server foo &&
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git -C server repack -a -d --write-bitmap-index &&
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git clone "file://$(pwd)/server" repo &&
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HASH=$(git -C repo rev-parse foo) &&
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rm -rf repo/.git/objects/* &&
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git -C repo config core.repositoryformatversion 1 &&
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git -C repo config extensions.partialclone "origin" &&
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git -C repo cat-file -p "$HASH" &&
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# Ensure that the .promisor file is written, and check that its
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# associated packfile contains the object
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ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
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test_line_count = 1 promisorlist &&
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IDX=$(cat promisorlist | sed "s/promisor$/idx/") &&
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git verify-pack --verbose "$IDX" | grep "$HASH"
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'
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test_expect_success 'rev-list stops traversal at missing and promised commit' '
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rm -rf repo &&
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test_create_repo repo &&
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test_commit -C repo foo &&
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test_commit -C repo bar &&
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FOO=$(git -C repo rev-parse foo) &&
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promise_and_delete "$FOO" &&
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git -C repo config core.repositoryformatversion 1 &&
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git -C repo config extensions.partialclone "arbitrary string" &&
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git -C repo rev-list --exclude-promisor-objects --objects bar >out &&
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grep $(git -C repo rev-parse bar) out &&
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! grep $FOO out
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'
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test_expect_success 'rev-list stops traversal at missing and promised tree' '
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rm -rf repo &&
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test_create_repo repo &&
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test_commit -C repo foo &&
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mkdir repo/a_dir &&
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echo something >repo/a_dir/something &&
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git -C repo add a_dir/something &&
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git -C repo commit -m bar &&
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# foo^{tree} (tree referenced from commit)
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TREE=$(git -C repo rev-parse foo^{tree}) &&
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# a tree referenced by HEAD^{tree} (tree referenced from tree)
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TREE2=$(git -C repo ls-tree HEAD^{tree} | grep " tree " | head -1 | cut -b13-52) &&
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promise_and_delete "$TREE" &&
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promise_and_delete "$TREE2" &&
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git -C repo config core.repositoryformatversion 1 &&
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git -C repo config extensions.partialclone "arbitrary string" &&
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git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
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grep $(git -C repo rev-parse foo) out &&
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! grep $TREE out &&
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grep $(git -C repo rev-parse HEAD) out &&
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! grep $TREE2 out
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'
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test_expect_success 'rev-list stops traversal at missing and promised blob' '
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rm -rf repo &&
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test_create_repo repo &&
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echo something >repo/something &&
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git -C repo add something &&
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git -C repo commit -m foo &&
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BLOB=$(git -C repo hash-object -w something) &&
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promise_and_delete "$BLOB" &&
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git -C repo config core.repositoryformatversion 1 &&
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git -C repo config extensions.partialclone "arbitrary string" &&
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git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
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grep $(git -C repo rev-parse HEAD) out &&
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! grep $BLOB out
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'
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test_expect_success 'rev-list stops traversal at promisor commit, tree, and blob' '
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rm -rf repo &&
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test_create_repo repo &&
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test_commit -C repo foo &&
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test_commit -C repo bar &&
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test_commit -C repo baz &&
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COMMIT=$(git -C repo rev-parse foo) &&
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TREE=$(git -C repo rev-parse bar^{tree}) &&
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BLOB=$(git hash-object repo/baz.t) &&
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printf "%s\n%s\n%s\n" $COMMIT $TREE $BLOB | pack_as_from_promisor &&
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git -C repo config core.repositoryformatversion 1 &&
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git -C repo config extensions.partialclone "arbitrary string" &&
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git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
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! grep $COMMIT out &&
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! grep $TREE out &&
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! grep $BLOB out &&
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grep $(git -C repo rev-parse bar) out # sanity check that some walking was done
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'
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test_expect_success 'rev-list accepts missing and promised objects on command line' '
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rm -rf repo &&
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test_create_repo repo &&
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test_commit -C repo foo &&
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test_commit -C repo bar &&
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test_commit -C repo baz &&
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COMMIT=$(git -C repo rev-parse foo) &&
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TREE=$(git -C repo rev-parse bar^{tree}) &&
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BLOB=$(git hash-object repo/baz.t) &&
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promise_and_delete $COMMIT &&
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promise_and_delete $TREE &&
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promise_and_delete $BLOB &&
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git -C repo config core.repositoryformatversion 1 &&
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git -C repo config extensions.partialclone "arbitrary string" &&
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git -C repo rev-list --exclude-promisor-objects --objects "$COMMIT" "$TREE" "$BLOB"
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'
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test_expect_success 'gc repacks promisor objects separately from non-promisor objects' '
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rm -rf repo &&
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test_create_repo repo &&
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test_commit -C repo one &&
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test_commit -C repo two &&
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TREE_ONE=$(git -C repo rev-parse one^{tree}) &&
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printf "$TREE_ONE\n" | pack_as_from_promisor &&
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TREE_TWO=$(git -C repo rev-parse two^{tree}) &&
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printf "$TREE_TWO\n" | pack_as_from_promisor &&
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git -C repo config core.repositoryformatversion 1 &&
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git -C repo config extensions.partialclone "arbitrary string" &&
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git -C repo gc &&
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# Ensure that exactly one promisor packfile exists, and that it
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# contains the trees but not the commits
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ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
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test_line_count = 1 promisorlist &&
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PROMISOR_PACKFILE=$(sed "s/.promisor/.pack/" <promisorlist) &&
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git verify-pack $PROMISOR_PACKFILE -v >out &&
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grep "$TREE_ONE" out &&
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grep "$TREE_TWO" out &&
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! grep "$(git -C repo rev-parse one)" out &&
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! grep "$(git -C repo rev-parse two)" out &&
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# Remove the promisor packfile and associated files
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rm $(sed "s/.promisor//" <promisorlist).* &&
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# Ensure that the single other pack contains the commits, but not the
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# trees
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ls repo/.git/objects/pack/pack-*.pack >packlist &&
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test_line_count = 1 packlist &&
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git verify-pack repo/.git/objects/pack/pack-*.pack -v >out &&
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grep "$(git -C repo rev-parse one)" out &&
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grep "$(git -C repo rev-parse two)" out &&
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! grep "$TREE_ONE" out &&
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! grep "$TREE_TWO" out
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'
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test_expect_success 'gc does not repack promisor objects if there are none' '
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rm -rf repo &&
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test_create_repo repo &&
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test_commit -C repo one &&
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git -C repo config core.repositoryformatversion 1 &&
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git -C repo config extensions.partialclone "arbitrary string" &&
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git -C repo gc &&
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# Ensure that only one pack exists
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ls repo/.git/objects/pack/pack-*.pack >packlist &&
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test_line_count = 1 packlist
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'
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repack_and_check () {
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rm -rf repo2 &&
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cp -r repo repo2 &&
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git -C repo2 repack $1 -d &&
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git -C repo2 fsck &&
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git -C repo2 cat-file -e $2 &&
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git -C repo2 cat-file -e $3
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}
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test_expect_success 'repack -d does not irreversibly delete promisor objects' '
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rm -rf repo &&
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test_create_repo repo &&
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git -C repo config core.repositoryformatversion 1 &&
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git -C repo config extensions.partialclone "arbitrary string" &&
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git -C repo commit --allow-empty -m one &&
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git -C repo commit --allow-empty -m two &&
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git -C repo commit --allow-empty -m three &&
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git -C repo commit --allow-empty -m four &&
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ONE=$(git -C repo rev-parse HEAD^^^) &&
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TWO=$(git -C repo rev-parse HEAD^^) &&
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THREE=$(git -C repo rev-parse HEAD^) &&
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printf "$TWO\n" | pack_as_from_promisor &&
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printf "$THREE\n" | pack_as_from_promisor &&
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delete_object repo "$ONE" &&
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repack_and_check -a "$TWO" "$THREE" &&
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repack_and_check -A "$TWO" "$THREE" &&
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repack_and_check -l "$TWO" "$THREE"
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'
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test_expect_success 'gc stops traversal when a missing but promised object is reached' '
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rm -rf repo &&
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test_create_repo repo &&
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test_commit -C repo my_commit &&
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TREE_HASH=$(git -C repo rev-parse HEAD^{tree}) &&
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HASH=$(promise_and_delete $TREE_HASH) &&
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git -C repo config core.repositoryformatversion 1 &&
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git -C repo config extensions.partialclone "arbitrary string" &&
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git -C repo gc &&
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# Ensure that the promisor packfile still exists, and remove it
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test -e repo/.git/objects/pack/pack-$HASH.pack &&
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rm repo/.git/objects/pack/pack-$HASH.* &&
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# Ensure that the single other pack contains the commit, but not the tree
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ls repo/.git/objects/pack/pack-*.pack >packlist &&
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test_line_count = 1 packlist &&
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git verify-pack repo/.git/objects/pack/pack-*.pack -v >out &&
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grep "$(git -C repo rev-parse HEAD)" out &&
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! grep "$TREE_HASH" out
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'
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LIB_HTTPD_PORT=12345 # default port, 410, cannot be used as non-root
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. "$TEST_DIRECTORY"/lib-httpd.sh
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start_httpd
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test_expect_success 'fetching of missing objects from an HTTP server' '
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rm -rf repo &&
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SERVER="$HTTPD_DOCUMENT_ROOT_PATH/server" &&
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test_create_repo "$SERVER" &&
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test_commit -C "$SERVER" foo &&
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git -C "$SERVER" repack -a -d --write-bitmap-index &&
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git clone $HTTPD_URL/smart/server repo &&
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HASH=$(git -C repo rev-parse foo) &&
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rm -rf repo/.git/objects/* &&
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git -C repo config core.repositoryformatversion 1 &&
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git -C repo config extensions.partialclone "origin" &&
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git -C repo cat-file -p "$HASH" &&
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# Ensure that the .promisor file is written, and check that its
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# associated packfile contains the object
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ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
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test_line_count = 1 promisorlist &&
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IDX=$(cat promisorlist | sed "s/promisor$/idx/") &&
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git verify-pack --verbose "$IDX" | grep "$HASH"
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'
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stop_httpd
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test_done
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