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Diffstat (limited to 't/t5310-pack-bitmaps.sh')
| -rwxr-xr-x | t/t5310-pack-bitmaps.sh | 292 |
1 files changed, 292 insertions, 0 deletions
diff --git a/t/t5310-pack-bitmaps.sh b/t/t5310-pack-bitmaps.sh new file mode 100755 index 0000000000..424bec7d77 --- /dev/null +++ b/t/t5310-pack-bitmaps.sh @@ -0,0 +1,292 @@ +#!/bin/sh + +test_description='exercise basic bitmap functionality' +. ./test-lib.sh + +objpath () { + echo ".git/objects/$(echo "$1" | sed -e 's|\(..\)|\1/|')" +} + +# show objects present in pack ($1 should be associated *.idx) +list_packed_objects () { + git show-index <"$1" | cut -d' ' -f2 +} + +# has_any pattern-file content-file +# tests whether content-file has any entry from pattern-file with entries being +# whole lines. +has_any () { + grep -Ff "$1" "$2" +} + +test_expect_success 'setup repo with moderate-sized history' ' + for i in $(test_seq 1 10); do + test_commit $i + done && + git checkout -b other HEAD~5 && + for i in $(test_seq 1 10); do + test_commit side-$i + done && + git checkout master && + bitmaptip=$(git rev-parse master) && + blob=$(echo tagged-blob | git hash-object -w --stdin) && + git tag tagged-blob $blob && + git config repack.writebitmaps true && + git config pack.writebitmaphashcache true +' + +test_expect_success 'full repack creates bitmaps' ' + git repack -ad && + ls .git/objects/pack/ | grep bitmap >output && + test_line_count = 1 output +' + +test_expect_success 'rev-list --test-bitmap verifies bitmaps' ' + git rev-list --test-bitmap HEAD +' + +rev_list_tests() { + state=$1 + + test_expect_success "counting commits via bitmap ($state)" ' + git rev-list --count HEAD >expect && + git rev-list --use-bitmap-index --count HEAD >actual && + test_cmp expect actual + ' + + test_expect_success "counting partial commits via bitmap ($state)" ' + git rev-list --count HEAD~5..HEAD >expect && + git rev-list --use-bitmap-index --count HEAD~5..HEAD >actual && + test_cmp expect actual + ' + + test_expect_success "counting commits with limit ($state)" ' + git rev-list --count -n 1 HEAD >expect && + git rev-list --use-bitmap-index --count -n 1 HEAD >actual && + test_cmp expect actual + ' + + test_expect_success "counting non-linear history ($state)" ' + git rev-list --count other...master >expect && + git rev-list --use-bitmap-index --count other...master >actual && + test_cmp expect actual + ' + + test_expect_success "counting commits with limiting ($state)" ' + git rev-list --count HEAD -- 1.t >expect && + git rev-list --use-bitmap-index --count HEAD -- 1.t >actual && + test_cmp expect actual + ' + + test_expect_success "enumerate --objects ($state)" ' + git rev-list --objects --use-bitmap-index HEAD >tmp && + cut -d" " -f1 <tmp >tmp2 && + sort <tmp2 >actual && + git rev-list --objects HEAD >tmp && + cut -d" " -f1 <tmp >tmp2 && + sort <tmp2 >expect && + test_cmp expect actual + ' + + test_expect_success "bitmap --objects handles non-commit objects ($state)" ' + git rev-list --objects --use-bitmap-index HEAD tagged-blob >actual && + grep $blob actual + ' +} + +rev_list_tests 'full bitmap' + +test_expect_success 'clone from bitmapped repository' ' + git clone --no-local --bare . clone.git && + git rev-parse HEAD >expect && + git --git-dir=clone.git rev-parse HEAD >actual && + test_cmp expect actual +' + +test_expect_success 'setup further non-bitmapped commits' ' + for i in $(test_seq 1 10); do + test_commit further-$i + done +' + +rev_list_tests 'partial bitmap' + +test_expect_success 'fetch (partial bitmap)' ' + git --git-dir=clone.git fetch origin master:master && + git rev-parse HEAD >expect && + git --git-dir=clone.git rev-parse HEAD >actual && + test_cmp expect actual +' + +test_expect_success 'incremental repack fails when bitmaps are requested' ' + test_commit more-1 && + test_must_fail git repack -d 2>err && + test_i18ngrep "Incremental repacks are incompatible with bitmap" err +' + +test_expect_success 'incremental repack can disable bitmaps' ' + test_commit more-2 && + git repack -d --no-write-bitmap-index +' + +test_expect_success 'pack-objects respects --local (non-local loose)' ' + git init --bare alt.git && + echo $(pwd)/alt.git/objects >.git/objects/info/alternates && + echo content1 >file1 && + # non-local loose object which is not present in bitmapped pack + altblob=$(GIT_DIR=alt.git git hash-object -w file1) && + # non-local loose object which is also present in bitmapped pack + git cat-file blob $blob | GIT_DIR=alt.git git hash-object -w --stdin && + git add file1 && + test_tick && + git commit -m commit_file1 && + echo HEAD | git pack-objects --local --stdout --revs >1.pack && + git index-pack 1.pack && + list_packed_objects 1.idx >1.objects && + printf "%s\n" "$altblob" "$blob" >nonlocal-loose && + ! has_any nonlocal-loose 1.objects +' + +test_expect_success 'pack-objects respects --honor-pack-keep (local non-bitmapped pack)' ' + echo content2 >file2 && + blob2=$(git hash-object -w file2) && + git add file2 && + test_tick && + git commit -m commit_file2 && + printf "%s\n" "$blob2" "$bitmaptip" >keepobjects && + pack2=$(git pack-objects pack2 <keepobjects) && + mv pack2-$pack2.* .git/objects/pack/ && + >.git/objects/pack/pack2-$pack2.keep && + rm $(objpath $blob2) && + echo HEAD | git pack-objects --honor-pack-keep --stdout --revs >2a.pack && + git index-pack 2a.pack && + list_packed_objects 2a.idx >2a.objects && + ! has_any keepobjects 2a.objects +' + +test_expect_success 'pack-objects respects --local (non-local pack)' ' + mv .git/objects/pack/pack2-$pack2.* alt.git/objects/pack/ && + echo HEAD | git pack-objects --local --stdout --revs >2b.pack && + git index-pack 2b.pack && + list_packed_objects 2b.idx >2b.objects && + ! has_any keepobjects 2b.objects +' + +test_expect_success 'pack-objects respects --honor-pack-keep (local bitmapped pack)' ' + ls .git/objects/pack/ | grep bitmap >output && + test_line_count = 1 output && + packbitmap=$(basename $(cat output) .bitmap) && + list_packed_objects .git/objects/pack/$packbitmap.idx >packbitmap.objects && + test_when_finished "rm -f .git/objects/pack/$packbitmap.keep" && + >.git/objects/pack/$packbitmap.keep && + echo HEAD | git pack-objects --honor-pack-keep --stdout --revs >3a.pack && + git index-pack 3a.pack && + list_packed_objects 3a.idx >3a.objects && + ! has_any packbitmap.objects 3a.objects +' + +test_expect_success 'pack-objects respects --local (non-local bitmapped pack)' ' + mv .git/objects/pack/$packbitmap.* alt.git/objects/pack/ && + test_when_finished "mv alt.git/objects/pack/$packbitmap.* .git/objects/pack/" && + echo HEAD | git pack-objects --local --stdout --revs >3b.pack && + git index-pack 3b.pack && + list_packed_objects 3b.idx >3b.objects && + ! has_any packbitmap.objects 3b.objects +' + +test_expect_success 'pack-objects to file can use bitmap' ' + # make sure we still have 1 bitmap index from previous tests + ls .git/objects/pack/ | grep bitmap >output && + test_line_count = 1 output && + # verify equivalent packs are generated with/without using bitmap index + packasha1=$(git pack-objects --no-use-bitmap-index --all packa </dev/null) && + packbsha1=$(git pack-objects --use-bitmap-index --all packb </dev/null) && + list_packed_objects <packa-$packasha1.idx >packa.objects && + list_packed_objects <packb-$packbsha1.idx >packb.objects && + test_cmp packa.objects packb.objects +' + +test_expect_success 'full repack, reusing previous bitmaps' ' + git repack -ad && + ls .git/objects/pack/ | grep bitmap >output && + test_line_count = 1 output +' + +test_expect_success 'fetch (full bitmap)' ' + git --git-dir=clone.git fetch origin master:master && + git rev-parse HEAD >expect && + git --git-dir=clone.git rev-parse HEAD >actual && + test_cmp expect actual +' + +test_expect_success 'create objects for missing-HAVE tests' ' + blob=$(echo "missing have" | git hash-object -w --stdin) && + tree=$(printf "100644 blob $blob\tfile\n" | git mktree) && + parent=$(echo parent | git commit-tree $tree) && + commit=$(echo commit | git commit-tree $tree -p $parent) && + cat >revs <<-EOF + HEAD + ^HEAD^ + ^$commit + EOF +' + +test_expect_success 'pack-objects respects --incremental' ' + cat >revs2 <<-EOF && + HEAD + $commit + EOF + git pack-objects --incremental --stdout --revs <revs2 >4.pack && + git index-pack 4.pack && + list_packed_objects 4.idx >4.objects && + test_line_count = 4 4.objects && + git rev-list --objects $commit >revlist && + cut -d" " -f1 revlist |sort >objects && + test_cmp 4.objects objects +' + +test_expect_success 'pack with missing blob' ' + rm $(objpath $blob) && + git pack-objects --stdout --revs <revs >/dev/null +' + +test_expect_success 'pack with missing tree' ' + rm $(objpath $tree) && + git pack-objects --stdout --revs <revs >/dev/null +' + +test_expect_success 'pack with missing parent' ' + rm $(objpath $parent) && + git pack-objects --stdout --revs <revs >/dev/null +' + +test_expect_success JGIT 'we can read jgit bitmaps' ' + git clone . compat-jgit && + ( + cd compat-jgit && + rm -f .git/objects/pack/*.bitmap && + jgit gc && + git rev-list --test-bitmap HEAD + ) +' + +test_expect_success JGIT 'jgit can read our bitmaps' ' + git clone . compat-us && + ( + cd compat-us && + git repack -adb && + # jgit gc will barf if it does not like our bitmaps + jgit gc + ) +' + +test_expect_success 'splitting packs does not generate bogus bitmaps' ' + test-genrandom foo $((1024 * 1024)) >rand && + git add rand && + git commit -m "commit with big file" && + git -c pack.packSizeLimit=500k repack -adb && + git init --bare no-bitmaps.git && + git -C no-bitmaps.git fetch .. HEAD +' + +test_done |