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Diffstat (limited to 'third_party/git/t/t7701-repack-unpack-unreachable.sh')
| -rwxr-xr-x | third_party/git/t/t7701-repack-unpack-unreachable.sh | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/third_party/git/t/t7701-repack-unpack-unreachable.sh b/third_party/git/t/t7701-repack-unpack-unreachable.sh new file mode 100755 index 000000000000..48261ba0805c --- /dev/null +++ b/third_party/git/t/t7701-repack-unpack-unreachable.sh @@ -0,0 +1,153 @@ +#!/bin/sh + +test_description='git repack works correctly' + +. ./test-lib.sh + +fsha1= +csha1= +tsha1= + +test_expect_success '-A with -d option leaves unreachable objects unpacked' ' + echo content > file1 && + git add . && + test_tick && + git commit -m initial_commit && + # create a transient branch with unique content + git checkout -b transient_branch && + echo more content >> file1 && + # record the objects created in the database for file, commit, tree + fsha1=$(git hash-object file1) && + test_tick && + git commit -a -m more_content && + csha1=$(git rev-parse HEAD^{commit}) && + tsha1=$(git rev-parse HEAD^{tree}) && + git checkout master && + echo even more content >> file1 && + test_tick && + git commit -a -m even_more_content && + # delete the transient branch + git branch -D transient_branch && + # pack the repo + git repack -A -d -l && + # verify objects are packed in repository + test 3 = $(git verify-pack -v -- .git/objects/pack/*.idx | + egrep "^($fsha1|$csha1|$tsha1) " | + sort | uniq | wc -l) && + git show $fsha1 && + git show $csha1 && + git show $tsha1 && + # now expire the reflog, while keeping reachable ones but expiring + # unreachables immediately + test_tick && + sometimeago=$(( $test_tick - 10000 )) && + git reflog expire --expire=$sometimeago --expire-unreachable=$test_tick --all && + # and repack + git repack -A -d -l && + # verify objects are retained unpacked + test 0 = $(git verify-pack -v -- .git/objects/pack/*.idx | + egrep "^($fsha1|$csha1|$tsha1) " | + sort | uniq | wc -l) && + git show $fsha1 && + git show $csha1 && + git show $tsha1 +' + +compare_mtimes () +{ + read tref && + while read t; do + test "$tref" = "$t" || return 1 + done +} + +test_expect_success '-A without -d option leaves unreachable objects packed' ' + fsha1path=$(echo "$fsha1" | sed -e "s|\(..\)|\1/|") && + fsha1path=".git/objects/$fsha1path" && + csha1path=$(echo "$csha1" | sed -e "s|\(..\)|\1/|") && + csha1path=".git/objects/$csha1path" && + tsha1path=$(echo "$tsha1" | sed -e "s|\(..\)|\1/|") && + tsha1path=".git/objects/$tsha1path" && + git branch transient_branch $csha1 && + git repack -a -d -l && + test ! -f "$fsha1path" && + test ! -f "$csha1path" && + test ! -f "$tsha1path" && + test 1 = $(ls -1 .git/objects/pack/pack-*.pack | wc -l) && + packfile=$(ls .git/objects/pack/pack-*.pack) && + git branch -D transient_branch && + test_tick && + git repack -A -l && + test ! -f "$fsha1path" && + test ! -f "$csha1path" && + test ! -f "$tsha1path" && + git show $fsha1 && + git show $csha1 && + git show $tsha1 +' + +test_expect_success 'unpacked objects receive timestamp of pack file' ' + tmppack=".git/objects/pack/tmp_pack" && + ln "$packfile" "$tmppack" && + git repack -A -l -d && + test-tool chmtime --get "$tmppack" "$fsha1path" "$csha1path" "$tsha1path" \ + > mtimes && + compare_mtimes < mtimes +' + +test_expect_success 'do not bother loosening old objects' ' + obj1=$(echo one | git hash-object -w --stdin) && + obj2=$(echo two | git hash-object -w --stdin) && + pack1=$(echo $obj1 | git pack-objects .git/objects/pack/pack) && + pack2=$(echo $obj2 | git pack-objects .git/objects/pack/pack) && + git prune-packed && + git cat-file -p $obj1 && + git cat-file -p $obj2 && + test-tool chmtime =-86400 .git/objects/pack/pack-$pack2.pack && + git repack -A -d --unpack-unreachable=1.hour.ago && + git cat-file -p $obj1 && + test_must_fail git cat-file -p $obj2 +' + +test_expect_success 'keep packed objects found only in index' ' + echo my-unique-content >file && + git add file && + git commit -m "make it reachable" && + git gc && + git reset HEAD^ && + git reflog expire --expire=now --all && + git add file && + test-tool chmtime =-86400 .git/objects/pack/* && + git gc --prune=1.hour.ago && + git cat-file blob :file +' + +test_expect_success 'repack -k keeps unreachable packed objects' ' + # create packed-but-unreachable object + sha1=$(echo unreachable-packed | git hash-object -w --stdin) && + pack=$(echo $sha1 | git pack-objects .git/objects/pack/pack) && + git prune-packed && + + # -k should keep it + git repack -adk && + git cat-file -p $sha1 && + + # and double check that without -k it would have been removed + git repack -ad && + test_must_fail git cat-file -p $sha1 +' + +test_expect_success 'repack -k packs unreachable loose objects' ' + # create loose unreachable object + sha1=$(echo would-be-deleted-loose | git hash-object -w --stdin) && + objpath=.git/objects/$(echo $sha1 | sed "s,..,&/,") && + test_path_is_file $objpath && + + # and confirm that the loose object goes away, but we can + # still access it (ergo, it is packed) + git repack -adk && + test_path_is_missing $objpath && + git cat-file -p $sha1 +' + +test_done |