diff options
Diffstat (limited to 't/t5326-multi-pack-bitmaps.sh')
| -rwxr-xr-x | t/t5326-multi-pack-bitmaps.sh | 186 |
1 files changed, 49 insertions, 137 deletions
diff --git a/t/t5326-multi-pack-bitmaps.sh b/t/t5326-multi-pack-bitmaps.sh index e187f90..4fe5741 100755 --- a/t/t5326-multi-pack-bitmaps.sh +++ b/t/t5326-multi-pack-bitmaps.sh @@ -9,125 +9,13 @@ test_description='exercise basic multi-pack bitmap functionality' GIT_TEST_MULTI_PACK_INDEX=0 GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 -objdir=.git/objects -midx=$objdir/pack/multi-pack-index +# This test exercise multi-pack bitmap functionality where the object order is +# stored and read from a special chunk within the MIDX, so use the default +# behavior here. +sane_unset GIT_TEST_MIDX_WRITE_REV +sane_unset GIT_TEST_MIDX_READ_RIDX -# midx_pack_source <obj> -midx_pack_source () { - test-tool read-midx --show-objects .git/objects | grep "^$1 " | cut -f2 -} - -setup_bitmap_history - -test_expect_success 'enable core.multiPackIndex' ' - git config core.multiPackIndex true -' - -test_expect_success 'create single-pack midx with bitmaps' ' - git repack -ad && - git multi-pack-index write --bitmap && - test_path_is_file $midx && - test_path_is_file $midx-$(midx_checksum $objdir).bitmap && - test_path_is_file $midx-$(midx_checksum $objdir).rev -' - -basic_bitmap_tests - -test_expect_success 'create new additional packs' ' - for i in $(test_seq 1 16) - do - test_commit "$i" && - git repack -d || return 1 - done && - - git checkout -b other2 HEAD~8 && - for i in $(test_seq 1 8) - do - test_commit "side-$i" && - git repack -d || return 1 - done && - git checkout second -' - -test_expect_success 'create multi-pack midx with bitmaps' ' - git multi-pack-index write --bitmap && - - ls $objdir/pack/pack-*.pack >packs && - test_line_count = 25 packs && - - test_path_is_file $midx && - test_path_is_file $midx-$(midx_checksum $objdir).bitmap && - test_path_is_file $midx-$(midx_checksum $objdir).rev -' - -basic_bitmap_tests - -test_expect_success '--no-bitmap is respected when bitmaps exist' ' - git multi-pack-index write --bitmap && - - test_commit respect--no-bitmap && - git repack -d && - - test_path_is_file $midx && - test_path_is_file $midx-$(midx_checksum $objdir).bitmap && - test_path_is_file $midx-$(midx_checksum $objdir).rev && - - git multi-pack-index write --no-bitmap && - - test_path_is_file $midx && - test_path_is_missing $midx-$(midx_checksum $objdir).bitmap && - test_path_is_missing $midx-$(midx_checksum $objdir).rev -' - -test_expect_success 'setup midx with base from later pack' ' - # Write a and b so that "a" is a delta on top of base "b", since Git - # prefers to delete contents out of a base rather than add to a shorter - # object. - test_seq 1 128 >a && - test_seq 1 130 >b && - - git add a b && - git commit -m "initial commit" && - - a=$(git rev-parse HEAD:a) && - b=$(git rev-parse HEAD:b) && - - # In the first pack, "a" is stored as a delta to "b". - p1=$(git pack-objects .git/objects/pack/pack <<-EOF - $a - $b - EOF - ) && - - # In the second pack, "a" is missing, and "b" is not a delta nor base to - # any other object. - p2=$(git pack-objects .git/objects/pack/pack <<-EOF - $b - $(git rev-parse HEAD) - $(git rev-parse HEAD^{tree}) - EOF - ) && - - git prune-packed && - # Use the second pack as the preferred source, so that "b" occurs - # earlier in the MIDX object order, rendering "a" unusable for pack - # reuse. - git multi-pack-index write --bitmap --preferred-pack=pack-$p2.idx && - - have_delta $a $b && - test $(midx_pack_source $a) != $(midx_pack_source $b) -' - -rev_list_tests 'full bitmap with backwards delta' - -test_expect_success 'clone with bitmaps enabled' ' - git clone --no-local --bare . clone-reverse-delta.git && - test_when_finished "rm -fr clone-reverse-delta.git" && - - git rev-parse HEAD >expect && - git --git-dir=clone-reverse-delta.git rev-parse HEAD >actual && - test_cmp expect actual -' +midx_bitmap_core bitmap_reuse_tests() { from=$1 @@ -204,17 +92,7 @@ test_expect_success 'missing object closure fails gracefully' ' ) ' -test_expect_success 'setup partial bitmaps' ' - test_commit packed && - git repack && - test_commit loose && - git multi-pack-index write --bitmap 2>err && - test_path_is_file $midx && - test_path_is_file $midx-$(midx_checksum $objdir).bitmap && - test_path_is_file $midx-$(midx_checksum $objdir).rev -' - -basic_bitmap_tests HEAD~ +midx_bitmap_partial_tests test_expect_success 'removing a MIDX clears stale bitmaps' ' rm -fr repo && @@ -228,7 +106,6 @@ test_expect_success 'removing a MIDX clears stale bitmaps' ' # Write a MIDX and bitmap; remove the MIDX but leave the bitmap. stale_bitmap=$midx-$(midx_checksum $objdir).bitmap && - stale_rev=$midx-$(midx_checksum $objdir).rev && rm $midx && # Then write a new MIDX. @@ -238,9 +115,7 @@ test_expect_success 'removing a MIDX clears stale bitmaps' ' test_path_is_file $midx && test_path_is_file $midx-$(midx_checksum $objdir).bitmap && - test_path_is_file $midx-$(midx_checksum $objdir).rev && - test_path_is_missing $stale_bitmap && - test_path_is_missing $stale_rev + test_path_is_missing $stale_bitmap ) ' @@ -261,7 +136,6 @@ test_expect_success 'pack.preferBitmapTips' ' git multi-pack-index write --bitmap && test_path_is_file $midx && test_path_is_file $midx-$(midx_checksum $objdir).bitmap && - test_path_is_file $midx-$(midx_checksum $objdir).rev && test-tool bitmap list-commits | sort >bitmaps && comm -13 bitmaps commits >before && @@ -271,7 +145,6 @@ test_expect_success 'pack.preferBitmapTips' ' <before | git update-ref --stdin && rm -fr $midx-$(midx_checksum $objdir).bitmap && - rm -fr $midx-$(midx_checksum $objdir).rev && rm -fr $midx && git -c pack.preferBitmapTips=refs/tags/include \ @@ -309,7 +182,6 @@ test_expect_success 'writing a bitmap with --refs-snapshot' ' grep "$(git rev-parse two)" bitmaps && rm -fr $midx-$(midx_checksum $objdir).bitmap && - rm -fr $midx-$(midx_checksum $objdir).rev && rm -fr $midx && # Then again, but with a refs snapshot which only sees @@ -354,7 +226,6 @@ test_expect_success 'write a bitmap with --refs-snapshot (preferred tips)' ' ) >snapshot && rm -fr $midx-$(midx_checksum $objdir).bitmap && - rm -fr $midx-$(midx_checksum $objdir).rev && rm -fr $midx && git multi-pack-index write --bitmap --refs-snapshot=snapshot && @@ -395,4 +266,45 @@ test_expect_success 'hash-cache values are propagated from pack bitmaps' ' ) ' +test_expect_success 'no .bitmap is written without any objects' ' + rm -fr repo && + git init repo && + test_when_finished "rm -fr repo" && + ( + cd repo && + + empty="$(git pack-objects $objdir/pack/pack </dev/null)" && + cat >packs <<-EOF && + pack-$empty.idx + EOF + + git multi-pack-index write --bitmap --stdin-packs \ + <packs 2>err && + + grep "bitmap without any objects" err && + + test_path_is_file $midx && + test_path_is_missing $midx-$(midx_checksum $objdir).bitmap + ) +' + +test_expect_success 'graceful fallback when missing reverse index' ' + rm -fr repo && + git init repo && + test_when_finished "rm -fr repo" && + ( + cd repo && + + test_commit base && + + # write a pack and MIDX bitmap containing base + git repack -adb && + git multi-pack-index write --bitmap && + + GIT_TEST_MIDX_READ_RIDX=0 \ + git rev-list --use-bitmap-index HEAD 2>err && + ! grep "ignoring extra bitmap file" err + ) +' + test_done |