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284 lines
7.6 KiB
284 lines
7.6 KiB
#!/bin/sh |
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test_description='git repack --geometric works correctly' |
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. ./test-lib.sh |
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GIT_TEST_MULTI_PACK_INDEX=0 |
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objdir=.git/objects |
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packdir=$objdir/pack |
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midx=$objdir/pack/multi-pack-index |
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test_expect_success '--geometric with no packs' ' |
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git init geometric && |
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test_when_finished "rm -fr geometric" && |
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( |
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cd geometric && |
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git repack --write-midx --geometric 2 >out && |
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test_i18ngrep "Nothing new to pack" out |
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) |
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' |
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test_expect_success '--geometric with one pack' ' |
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git init geometric && |
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test_when_finished "rm -fr geometric" && |
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( |
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cd geometric && |
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test_commit "base" && |
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git repack -d && |
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git repack --geometric 2 >out && |
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test_i18ngrep "Nothing new to pack" out |
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) |
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' |
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test_expect_success '--geometric with an intact progression' ' |
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git init geometric && |
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test_when_finished "rm -fr geometric" && |
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( |
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cd geometric && |
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# These packs already form a geometric progression. |
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test_commit_bulk --start=1 1 && # 3 objects |
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test_commit_bulk --start=2 2 && # 6 objects |
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test_commit_bulk --start=4 4 && # 12 objects |
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find $objdir/pack -name "*.pack" | sort >expect && |
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git repack --geometric 2 -d && |
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find $objdir/pack -name "*.pack" | sort >actual && |
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test_cmp expect actual |
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) |
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' |
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test_expect_success '--geometric with loose objects' ' |
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git init geometric && |
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test_when_finished "rm -fr geometric" && |
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( |
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cd geometric && |
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# These packs already form a geometric progression. |
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test_commit_bulk --start=1 1 && # 3 objects |
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test_commit_bulk --start=2 2 && # 6 objects |
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# The loose objects are packed together, breaking the |
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# progression. |
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test_commit loose && # 3 objects |
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find $objdir/pack -name "*.pack" | sort >before && |
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git repack --geometric 2 -d && |
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find $objdir/pack -name "*.pack" | sort >after && |
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comm -13 before after >new && |
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comm -23 before after >removed && |
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test_line_count = 1 new && |
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test_must_be_empty removed && |
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git repack --geometric 2 -d && |
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find $objdir/pack -name "*.pack" | sort >after && |
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# The progression (3, 3, 6) is combined into one new pack. |
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test_line_count = 1 after |
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) |
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' |
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test_expect_success '--geometric with small-pack rollup' ' |
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git init geometric && |
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test_when_finished "rm -fr geometric" && |
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( |
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cd geometric && |
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test_commit_bulk --start=1 1 && # 3 objects |
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test_commit_bulk --start=2 1 && # 3 objects |
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find $objdir/pack -name "*.pack" | sort >small && |
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test_commit_bulk --start=3 4 && # 12 objects |
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test_commit_bulk --start=7 8 && # 24 objects |
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find $objdir/pack -name "*.pack" | sort >before && |
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git repack --geometric 2 -d && |
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# Three packs in total; two of the existing large ones, and one |
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# new one. |
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find $objdir/pack -name "*.pack" | sort >after && |
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test_line_count = 3 after && |
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comm -3 small before | tr -d "\t" >large && |
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grep -qFf large after |
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) |
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' |
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test_expect_success '--geometric with small- and large-pack rollup' ' |
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git init geometric && |
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test_when_finished "rm -fr geometric" && |
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( |
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cd geometric && |
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# size(small1) + size(small2) > size(medium) / 2 |
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test_commit_bulk --start=1 1 && # 3 objects |
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test_commit_bulk --start=2 1 && # 3 objects |
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test_commit_bulk --start=2 3 && # 7 objects |
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test_commit_bulk --start=6 9 && # 27 objects && |
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find $objdir/pack -name "*.pack" | sort >before && |
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git repack --geometric 2 -d && |
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find $objdir/pack -name "*.pack" | sort >after && |
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comm -12 before after >untouched && |
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# Two packs in total; the largest pack from before running "git |
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# repack", and one new one. |
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test_line_count = 1 untouched && |
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test_line_count = 2 after |
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) |
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' |
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test_expect_success '--geometric ignores kept packs' ' |
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git init geometric && |
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test_when_finished "rm -fr geometric" && |
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( |
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cd geometric && |
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test_commit kept && # 3 objects |
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test_commit pack && # 3 objects |
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KEPT=$(git pack-objects --revs $objdir/pack/pack <<-EOF |
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refs/tags/kept |
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EOF |
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) && |
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PACK=$(git pack-objects --revs $objdir/pack/pack <<-EOF |
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refs/tags/pack |
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^refs/tags/kept |
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EOF |
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) && |
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# neither pack contains more than twice the number of objects in |
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# the other, so they should be combined. but, marking one as |
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# .kept on disk will "freeze" it, so the pack structure should |
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# remain unchanged. |
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touch $objdir/pack/pack-$KEPT.keep && |
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find $objdir/pack -name "*.pack" | sort >before && |
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git repack --geometric 2 -d && |
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find $objdir/pack -name "*.pack" | sort >after && |
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# both packs should still exist |
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test_path_is_file $objdir/pack/pack-$KEPT.pack && |
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test_path_is_file $objdir/pack/pack-$PACK.pack && |
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# and no new packs should be created |
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test_cmp before after && |
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# Passing --pack-kept-objects causes packs with a .keep file to |
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# be repacked, too. |
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git repack --geometric 2 -d --pack-kept-objects && |
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# After repacking, two packs remain: one new one (containing the |
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# objects in both the .keep and non-kept pack), and the .keep |
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# pack (since `--pack-kept-objects -d` does not actually delete |
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# the kept pack). |
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find $objdir/pack -name "*.pack" >after && |
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test_line_count = 2 after |
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) |
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' |
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test_expect_success '--geometric ignores --keep-pack packs' ' |
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git init geometric && |
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test_when_finished "rm -fr geometric" && |
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( |
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cd geometric && |
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# Create two equal-sized packs |
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test_commit kept && # 3 objects |
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git repack -d && |
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test_commit pack && # 3 objects |
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git repack -d && |
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find $objdir/pack -type f -name "*.pack" | sort >packs.before && |
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git repack --geometric 2 -dm \ |
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--keep-pack="$(basename "$(head -n 1 packs.before)")" >out && |
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find $objdir/pack -type f -name "*.pack" | sort >packs.after && |
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# Packs should not have changed (only one non-kept pack, no |
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# loose objects), but $midx should now exist. |
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grep "Nothing new to pack" out && |
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test_path_is_file $midx && |
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test_cmp packs.before packs.after && |
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git fsck |
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) |
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' |
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test_expect_success '--geometric chooses largest MIDX preferred pack' ' |
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git init geometric && |
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test_when_finished "rm -fr geometric" && |
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( |
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cd geometric && |
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# These packs already form a geometric progression. |
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test_commit_bulk --start=1 1 && # 3 objects |
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test_commit_bulk --start=2 2 && # 6 objects |
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ls $objdir/pack/pack-*.idx >before && |
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test_commit_bulk --start=4 4 && # 12 objects |
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ls $objdir/pack/pack-*.idx >after && |
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git repack --geometric 2 -dbm && |
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comm -3 before after | xargs -n 1 basename >expect && |
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test-tool read-midx --preferred-pack $objdir >actual && |
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test_cmp expect actual |
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) |
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' |
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test_expect_success '--geometric with pack.packSizeLimit' ' |
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git init pack-rewrite && |
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test_when_finished "rm -fr pack-rewrite" && |
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( |
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cd pack-rewrite && |
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test-tool genrandom foo 1048576 >foo && |
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test-tool genrandom bar 1048576 >bar && |
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git add foo bar && |
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test_tick && |
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git commit -m base && |
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git rev-parse HEAD:foo HEAD:bar >p1.objects && |
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git rev-parse HEAD HEAD^{tree} >p2.objects && |
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# These two packs each contain two objects, so the following |
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# `--geometric` repack will try to combine them. |
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p1="$(git pack-objects $packdir/pack <p1.objects)" && |
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p2="$(git pack-objects $packdir/pack <p2.objects)" && |
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# Remove any loose objects in packs, since we do not want extra |
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# copies around (which would mask over potential object |
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# corruption issues). |
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git prune-packed && |
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# Both p1 and p2 will be rolled up, but pack-objects will write |
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# three packs: |
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# |
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# - one containing object "foo", |
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# - another containing object "bar", |
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# - a final pack containing the commit and tree objects |
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# (identical to p2 above) |
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git repack --geometric 2 -d --max-pack-size=1048576 && |
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# Ensure `repack` can detect that the third pack it wrote |
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# (containing just the tree and commit objects) was identical to |
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# one that was below the geometric split, so that we can save it |
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# from deletion. |
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# |
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# If `repack` fails to do that, we will incorrectly delete p2, |
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# causing object corruption. |
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git fsck |
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) |
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' |
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test_done
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