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| author |  Derrick Stolee <dstolee@microsoft.com> | 2019-06-10 16:35:23 -0700 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2019-06-11 10:34:40 -0700 |
| commit | cff97116160e57741c9a954a51bfcb0057b3e89d (patch) | |
| tree | 991cfb42fdd2eb373675c40f29108ee06b6fc61e /t | |
| parent | Docs: rearrange subcommands for multi-pack-index (diff) | |
| download | tgif-cff97116160e57741c9a954a51bfcb0057b3e89d.tar.xz | |
multi-pack-index: prepare for 'expire' subcommand
The multi-pack-index tracks objects in a collection of pack-files.
Only one copy of each object is indexed, using the modified time
of the pack-files to determine tie-breakers. It is possible to
have a pack-file with no referenced objects because all objects
have a duplicate in a newer pack-file.
Introduce a new 'expire' subcommand to the multi-pack-index builtin.
This subcommand will delete these unused pack-files and rewrite the
multi-pack-index to no longer refer to those files. More details
about the specifics will follow as the method is implemented.
Add a test that verifies the 'expire' subcommand is correctly wired,
but will still be valid when the verb is implemented. Specifically,
create a set of packs that should all have referenced objects and
should not be removed during an 'expire' operation. The packs are
created carefully to ensure they have a specific order when sorted
by size. This will be important in a later test.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't')
| -rwxr-xr-x | t/t5319-multi-pack-index.sh | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/t/t5319-multi-pack-index.sh b/t/t5319-multi-pack-index.sh index 1ebf19ec3c..1b2d32f475 100755 --- a/t/t5319-multi-pack-index.sh +++ b/t/t5319-multi-pack-index.sh @@ -363,4 +363,53 @@ test_expect_success 'verify incorrect 64-bit offset' ' "incorrect object offset" ' +test_expect_success 'setup expire tests' ' + mkdir dup && + ( + cd dup && + git init && + test-tool genrandom "data" 4096 >large_file.txt && + git update-index --add large_file.txt && + for i in $(test_seq 1 20) + do + test_commit $i + done && + git branch A HEAD && + git branch B HEAD~8 && + git branch C HEAD~13 && + git branch D HEAD~16 && + git branch E HEAD~18 && + git pack-objects --revs .git/objects/pack/pack-A <<-EOF && + refs/heads/A + ^refs/heads/B + EOF + git pack-objects --revs .git/objects/pack/pack-B <<-EOF && + refs/heads/B + ^refs/heads/C + EOF + git pack-objects --revs .git/objects/pack/pack-C <<-EOF && + refs/heads/C + ^refs/heads/D + EOF + git pack-objects --revs .git/objects/pack/pack-D <<-EOF && + refs/heads/D + ^refs/heads/E + EOF + git pack-objects --revs .git/objects/pack/pack-E <<-EOF && + refs/heads/E + EOF + git multi-pack-index write + ) +' + +test_expect_success 'expire does not remove any packs' ' + ( + cd dup && + ls .git/objects/pack >expect && + git multi-pack-index expire && + ls .git/objects/pack >actual && + test_cmp expect actual + ) +' + test_done |