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Diffstat (limited to 't/t6500-gc.sh')
| -rwxr-xr-x | t/t6500-gc.sh | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/t/t6500-gc.sh b/t/t6500-gc.sh new file mode 100755 index 000000000000..c0f04dc6b0e1 --- /dev/null +++ b/t/t6500-gc.sh @@ -0,0 +1,205 @@ +#!/bin/sh + +test_description='basic git gc tests +' + +. ./test-lib.sh +. "$TEST_DIRECTORY"/lib-terminal.sh + +test_expect_success 'setup' ' + # do not let the amount of physical memory affects gc + # behavior, make sure we always pack everything to one pack by + # default + git config gc.bigPackThreshold 2g +' + +test_expect_success 'gc empty repository' ' + git gc +' + +test_expect_success 'gc does not leave behind pid file' ' + git gc && + test_path_is_missing .git/gc.pid +' + +test_expect_success 'gc --gobbledegook' ' + test_expect_code 129 git gc --nonsense 2>err && + test_i18ngrep "[Uu]sage: git gc" err +' + +test_expect_success 'gc -h with invalid configuration' ' + mkdir broken && + ( + cd broken && + git init && + echo "[gc] pruneexpire = CORRUPT" >>.git/config && + test_expect_code 129 git gc -h >usage 2>&1 + ) && + test_i18ngrep "[Uu]sage" broken/usage +' + +test_expect_success 'gc is not aborted due to a stale symref' ' + git init remote && + ( + cd remote && + test_commit initial && + git clone . ../client && + git branch -m develop && + cd ../client && + git fetch --prune && + git gc + ) +' + +test_expect_success 'gc --keep-largest-pack' ' + test_create_repo keep-pack && + ( + cd keep-pack && + test_commit one && + test_commit two && + test_commit three && + git gc && + ( cd .git/objects/pack && ls *.pack ) >pack-list && + test_line_count = 1 pack-list && + BASE_PACK=.git/objects/pack/pack-*.pack && + test_commit four && + git repack -d && + test_commit five && + git repack -d && + ( cd .git/objects/pack && ls *.pack ) >pack-list && + test_line_count = 3 pack-list && + git gc --keep-largest-pack && + ( cd .git/objects/pack && ls *.pack ) >pack-list && + test_line_count = 2 pack-list && + awk "/^P /{print \$2}" <.git/objects/info/packs >pack-info && + test_line_count = 2 pack-info && + test_path_is_file $BASE_PACK && + git fsck + ) +' + +test_expect_success 'auto gc with too many loose objects does not attempt to create bitmaps' ' + test_config gc.auto 3 && + test_config gc.autodetach false && + test_config pack.writebitmaps true && + # We need to create two object whose sha1s start with 17 + # since this is what git gc counts. As it happens, these + # two blobs will do so. + test_commit 263 && + test_commit 410 && + # Our first gc will create a pack; our second will create a second pack + git gc --auto && + ls .git/objects/pack | sort >existing_packs && + test_commit 523 && + test_commit 790 && + + git gc --auto 2>err && + test_i18ngrep ! "^warning:" err && + ls .git/objects/pack/ | sort >post_packs && + comm -1 -3 existing_packs post_packs >new && + comm -2 -3 existing_packs post_packs >del && + test_line_count = 0 del && # No packs are deleted + test_line_count = 2 new # There is one new pack and its .idx +' + +test_expect_success 'gc --no-quiet' ' + git -c gc.writeCommitGraph=true gc --no-quiet >stdout 2>stderr && + test_must_be_empty stdout && + test_line_count = 1 stderr && + test_i18ngrep "Computing commit graph generation numbers" stderr +' + +test_expect_success TTY 'with TTY: gc --no-quiet' ' + test_terminal git -c gc.writeCommitGraph=true gc --no-quiet >stdout 2>stderr && + test_must_be_empty stdout && + test_i18ngrep "Enumerating objects" stderr && + test_i18ngrep "Computing commit graph generation numbers" stderr +' + +test_expect_success 'gc --quiet' ' + git -c gc.writeCommitGraph=true gc --quiet >stdout 2>stderr && + test_must_be_empty stdout && + test_must_be_empty stderr +' + +test_expect_success 'gc.reflogExpire{Unreachable,}=never skips "expire" via "gc"' ' + test_config gc.reflogExpire never && + test_config gc.reflogExpireUnreachable never && + + GIT_TRACE=$(pwd)/trace.out git gc && + + # Check that git-pack-refs is run as a sanity check (done via + # gc_before_repack()) but that git-expire is not. + grep -E "^trace: (built-in|exec|run_command): git pack-refs --" trace.out && + ! grep -E "^trace: (built-in|exec|run_command): git reflog expire --" trace.out +' + +test_expect_success 'one of gc.reflogExpire{Unreachable,}=never does not skip "expire" via "gc"' ' + >trace.out && + test_config gc.reflogExpire never && + GIT_TRACE=$(pwd)/trace.out git gc && + grep -E "^trace: (built-in|exec|run_command): git reflog expire --" trace.out +' + +run_and_wait_for_auto_gc () { + # We read stdout from gc for the side effect of waiting until the + # background gc process exits, closing its fd 9. Furthermore, the + # variable assignment from a command substitution preserves the + # exit status of the main gc process. + # Note: this fd trickery doesn't work on Windows, but there is no + # need to, because on Win the auto gc always runs in the foreground. + doesnt_matter=$(git gc --auto 9>&1) +} + +test_expect_success 'background auto gc does not run if gc.log is present and recent but does if it is old' ' + test_commit foo && + test_commit bar && + git repack && + test_config gc.autopacklimit 1 && + test_config gc.autodetach true && + echo fleem >.git/gc.log && + git gc --auto 2>err && + test_i18ngrep "^warning:" err && + test_config gc.logexpiry 5.days && + test-tool chmtime =-345600 .git/gc.log && + git gc --auto && + test_config gc.logexpiry 2.days && + run_and_wait_for_auto_gc && + ls .git/objects/pack/pack-*.pack >packs && + test_line_count = 1 packs +' + +test_expect_success 'background auto gc respects lock for all operations' ' + # make sure we run a background auto-gc + test_commit make-pack && + git repack && + test_config gc.autopacklimit 1 && + test_config gc.autodetach true && + + # create a ref whose loose presence we can use to detect a pack-refs run + git update-ref refs/heads/should-be-loose HEAD && + test_path_is_file .git/refs/heads/should-be-loose && + + # now fake a concurrent gc that holds the lock; we can use our + # shell pid so that it looks valid. + hostname=$(hostname || echo unknown) && + shell_pid=$$ && + if test_have_prereq MINGW && test -f /proc/$shell_pid/winpid + then + # In Git for Windows, Bash (actually, the MSYS2 runtime) has a + # different idea of PIDs than git.exe (actually Windows). Use + # the Windows PID in this case. + shell_pid=$(cat /proc/$shell_pid/winpid) + fi && + printf "%d %s" "$shell_pid" "$hostname" >.git/gc.pid && + + # our gc should exit zero without doing anything + run_and_wait_for_auto_gc && + test_path_is_file .git/refs/heads/should-be-loose +' + +# DO NOT leave a detached auto gc process running near the end of the +# test script: it can run long enough in the background to racily +# interfere with the cleanup in 'test_done'. + +test_done |