diff options
Diffstat (limited to 'third_party/git/t/t7700-repack.sh')
| -rwxr-xr-x | third_party/git/t/t7700-repack.sh | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/third_party/git/t/t7700-repack.sh b/third_party/git/t/t7700-repack.sh new file mode 100755 index 000000000000..4e855bc21b45 --- /dev/null +++ b/third_party/git/t/t7700-repack.sh @@ -0,0 +1,265 @@ +#!/bin/sh + +test_description='git repack works correctly' + +. ./test-lib.sh + +commit_and_pack() { + test_commit "$@" >/dev/null && + SHA1=$(git pack-objects --all --unpacked --incremental .git/objects/pack/pack </dev/null) && + echo pack-${SHA1}.pack +} + +test_expect_success 'objects in packs marked .keep are not repacked' ' + echo content1 > file1 && + echo content2 > file2 && + git add . && + test_tick && + git commit -m initial_commit && + # Create two packs + # The first pack will contain all of the objects except one + git rev-list --objects --all | grep -v file2 | + git pack-objects pack > /dev/null && + # The second pack will contain the excluded object + packsha1=$(git rev-list --objects --all | grep file2 | + git pack-objects pack) && + >pack-$packsha1.keep && + objsha1=$(git verify-pack -v pack-$packsha1.idx | head -n 1 | + sed -e "s/^\([0-9a-f]\{40\}\).*/\1/") && + mv pack-* .git/objects/pack/ && + git repack -A -d -l && + git prune-packed && + for p in .git/objects/pack/*.idx; do + idx=$(basename $p) + test "pack-$packsha1.idx" = "$idx" && continue + if git verify-pack -v $p | egrep "^$objsha1"; then + found_duplicate_object=1 + echo "DUPLICATE OBJECT FOUND" + break + fi + done && + test -z "$found_duplicate_object" +' + +test_expect_success 'writing bitmaps via command-line can duplicate .keep objects' ' + # build on $objsha1, $packsha1, and .keep state from previous + git repack -Adbl && + test_when_finished "found_duplicate_object=" && + for p in .git/objects/pack/*.idx; do + idx=$(basename $p) + test "pack-$packsha1.idx" = "$idx" && continue + if git verify-pack -v $p | egrep "^$objsha1"; then + found_duplicate_object=1 + echo "DUPLICATE OBJECT FOUND" + break + fi + done && + test "$found_duplicate_object" = 1 +' + +test_expect_success 'writing bitmaps via config can duplicate .keep objects' ' + # build on $objsha1, $packsha1, and .keep state from previous + git -c repack.writebitmaps=true repack -Adl && + test_when_finished "found_duplicate_object=" && + for p in .git/objects/pack/*.idx; do + idx=$(basename $p) + test "pack-$packsha1.idx" = "$idx" && continue + if git verify-pack -v $p | egrep "^$objsha1"; then + found_duplicate_object=1 + echo "DUPLICATE OBJECT FOUND" + break + fi + done && + test "$found_duplicate_object" = 1 +' + +test_expect_success 'loose objects in alternate ODB are not repacked' ' + mkdir alt_objects && + echo $(pwd)/alt_objects > .git/objects/info/alternates && + echo content3 > file3 && + objsha1=$(GIT_OBJECT_DIRECTORY=alt_objects git hash-object -w file3) && + git add file3 && + test_tick && + git commit -m commit_file3 && + git repack -a -d -l && + git prune-packed && + for p in .git/objects/pack/*.idx; do + if git verify-pack -v $p | egrep "^$objsha1"; then + found_duplicate_object=1 + echo "DUPLICATE OBJECT FOUND" + break + fi + done && + test -z "$found_duplicate_object" +' + +test_expect_success 'packed obs in alt ODB are repacked even when local repo is packless' ' + mkdir alt_objects/pack && + mv .git/objects/pack/* alt_objects/pack && + git repack -a && + myidx=$(ls -1 .git/objects/pack/*.idx) && + test -f "$myidx" && + for p in alt_objects/pack/*.idx; do + git verify-pack -v $p | sed -n -e "/^[0-9a-f]\{40\}/p" + done | while read sha1 rest; do + if ! ( git verify-pack -v $myidx | grep "^$sha1" ); then + echo "Missing object in local pack: $sha1" + return 1 + fi + done +' + +test_expect_success 'packed obs in alt ODB are repacked when local repo has packs' ' + rm -f .git/objects/pack/* && + echo new_content >> file1 && + git add file1 && + test_tick && + git commit -m more_content && + git repack && + git repack -a -d && + myidx=$(ls -1 .git/objects/pack/*.idx) && + test -f "$myidx" && + for p in alt_objects/pack/*.idx; do + git verify-pack -v $p | sed -n -e "/^[0-9a-f]\{40\}/p" + done | while read sha1 rest; do + if ! ( git verify-pack -v $myidx | grep "^$sha1" ); then + echo "Missing object in local pack: $sha1" + return 1 + fi + done +' + +test_expect_success 'packed obs in alternate ODB kept pack are repacked' ' + # swap the .keep so the commit object is in the pack with .keep + for p in alt_objects/pack/*.pack + do + base_name=$(basename $p .pack) && + if test -f alt_objects/pack/$base_name.keep + then + rm alt_objects/pack/$base_name.keep + else + touch alt_objects/pack/$base_name.keep + fi + done && + git repack -a -d && + myidx=$(ls -1 .git/objects/pack/*.idx) && + test -f "$myidx" && + for p in alt_objects/pack/*.idx; do + git verify-pack -v $p | sed -n -e "/^[0-9a-f]\{40\}/p" + done | while read sha1 rest; do + if ! ( git verify-pack -v $myidx | grep "^$sha1" ); then + echo "Missing object in local pack: $sha1" + return 1 + fi + done +' + +test_expect_success 'packed unreachable obs in alternate ODB are not loosened' ' + rm -f alt_objects/pack/*.keep && + mv .git/objects/pack/* alt_objects/pack/ && + csha1=$(git rev-parse HEAD^{commit}) && + git reset --hard HEAD^ && + test_tick && + git reflog expire --expire=$test_tick --expire-unreachable=$test_tick --all && + # The pack-objects call on the next line is equivalent to + # git repack -A -d without the call to prune-packed + git pack-objects --honor-pack-keep --non-empty --all --reflog \ + --unpack-unreachable </dev/null pack && + rm -f .git/objects/pack/* && + mv pack-* .git/objects/pack/ && + test 0 = $(git verify-pack -v -- .git/objects/pack/*.idx | + egrep "^$csha1 " | sort | uniq | wc -l) && + echo > .git/objects/info/alternates && + test_must_fail git show $csha1 +' + +test_expect_success 'local packed unreachable obs that exist in alternate ODB are not loosened' ' + echo $(pwd)/alt_objects > .git/objects/info/alternates && + echo "$csha1" | git pack-objects --non-empty --all --reflog pack && + rm -f .git/objects/pack/* && + mv pack-* .git/objects/pack/ && + # The pack-objects call on the next line is equivalent to + # git repack -A -d without the call to prune-packed + git pack-objects --honor-pack-keep --non-empty --all --reflog \ + --unpack-unreachable </dev/null pack && + rm -f .git/objects/pack/* && + mv pack-* .git/objects/pack/ && + test 0 = $(git verify-pack -v -- .git/objects/pack/*.idx | + egrep "^$csha1 " | sort | uniq | wc -l) && + echo > .git/objects/info/alternates && + test_must_fail git show $csha1 +' + +test_expect_success 'objects made unreachable by grafts only are kept' ' + test_tick && + git commit --allow-empty -m "commit 4" && + H0=$(git rev-parse HEAD) && + H1=$(git rev-parse HEAD^) && + H2=$(git rev-parse HEAD^^) && + echo "$H0 $H2" > .git/info/grafts && + git reflog expire --expire=$test_tick --expire-unreachable=$test_tick --all && + git repack -a -d && + git cat-file -t $H1 +' + +test_expect_success 'repack --keep-pack' ' + test_create_repo keep-pack && + ( + cd keep-pack && + P1=$(commit_and_pack 1) && + P2=$(commit_and_pack 2) && + P3=$(commit_and_pack 3) && + P4=$(commit_and_pack 4) && + ls .git/objects/pack/*.pack >old-counts && + test_line_count = 4 old-counts && + git repack -a -d --keep-pack $P1 --keep-pack $P4 && + ls .git/objects/pack/*.pack >new-counts && + grep -q $P1 new-counts && + grep -q $P4 new-counts && + test_line_count = 3 new-counts && + git fsck + ) +' + +test_expect_success 'bitmaps are created by default in bare repos' ' + git clone --bare .git bare.git && + git -C bare.git repack -ad && + bitmap=$(ls bare.git/objects/pack/*.bitmap) && + test_path_is_file "$bitmap" +' + +test_expect_success 'incremental repack does not complain' ' + git -C bare.git repack -q 2>repack.err && + test_must_be_empty repack.err +' + +test_expect_success 'bitmaps can be disabled on bare repos' ' + git -c repack.writeBitmaps=false -C bare.git repack -ad && + bitmap=$(ls bare.git/objects/pack/*.bitmap 2>/dev/null || :) && + test -z "$bitmap" +' + +test_expect_success 'no bitmaps created if .keep files present' ' + pack=$(ls bare.git/objects/pack/*.pack) && + test_path_is_file "$pack" && + keep=${pack%.pack}.keep && + test_when_finished "rm -f \"\$keep\"" && + >"$keep" && + git -C bare.git repack -ad 2>stderr && + test_must_be_empty stderr && + find bare.git/objects/pack/ -type f -name "*.bitmap" >actual && + test_must_be_empty actual +' + +test_expect_success 'auto-bitmaps do not complain if unavailable' ' + test_config -C bare.git pack.packSizeLimit 1M && + blob=$(test-tool genrandom big $((1024*1024)) | + git -C bare.git hash-object -w --stdin) && + git -C bare.git update-ref refs/tags/big $blob && + git -C bare.git repack -ad 2>stderr && + test_must_be_empty stderr && + find bare.git/objects/pack -type f -name "*.bitmap" >actual && + test_must_be_empty actual +' + +test_done |