f4609b896f
This also bumps the stable nixpkgs to 20.09 as of 2020-11-21, because there is some breakage in the git build related to the netrc credentials helper which someone has taken care of in nixpkgs. The stable channel is not used for anything other than git, so this should be fine. Change-Id: I3575a19dab09e1e9556cf8231d717de9890484fb
222 lines
6.6 KiB
Bash
Executable file
222 lines
6.6 KiB
Bash
Executable file
#!/bin/sh
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test_description='basic git gc tests
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'
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. ./test-lib.sh
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. "$TEST_DIRECTORY"/lib-terminal.sh
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test_expect_success 'setup' '
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# do not let the amount of physical memory affects gc
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# behavior, make sure we always pack everything to one pack by
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# default
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git config gc.bigPackThreshold 2g &&
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# These are simply values which, when hashed as a blob with a newline,
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# produce a hash where the first byte is 0x17 in their respective
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# algorithms.
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test_oid_cache <<-EOF
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obj1 sha1:263
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obj1 sha256:34
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obj2 sha1:410
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obj2 sha256:174
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obj3 sha1:523
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obj3 sha256:313
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obj4 sha1:790
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obj4 sha256:481
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EOF
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'
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test_expect_success 'gc empty repository' '
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git gc
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'
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test_expect_success 'gc does not leave behind pid file' '
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git gc &&
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test_path_is_missing .git/gc.pid
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'
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test_expect_success 'gc --gobbledegook' '
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test_expect_code 129 git gc --nonsense 2>err &&
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test_i18ngrep "[Uu]sage: git gc" err
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'
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test_expect_success 'gc -h with invalid configuration' '
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mkdir broken &&
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(
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cd broken &&
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git init &&
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echo "[gc] pruneexpire = CORRUPT" >>.git/config &&
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test_expect_code 129 git gc -h >usage 2>&1
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) &&
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test_i18ngrep "[Uu]sage" broken/usage
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'
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test_expect_success 'gc is not aborted due to a stale symref' '
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git init remote &&
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(
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cd remote &&
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test_commit initial &&
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git clone . ../client &&
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git branch -m develop &&
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cd ../client &&
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git fetch --prune &&
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git gc
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)
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'
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test_expect_success 'gc --keep-largest-pack' '
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test_create_repo keep-pack &&
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(
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cd keep-pack &&
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test_commit one &&
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test_commit two &&
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test_commit three &&
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git gc &&
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( cd .git/objects/pack && ls *.pack ) >pack-list &&
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test_line_count = 1 pack-list &&
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BASE_PACK=.git/objects/pack/pack-*.pack &&
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test_commit four &&
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git repack -d &&
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test_commit five &&
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git repack -d &&
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( cd .git/objects/pack && ls *.pack ) >pack-list &&
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test_line_count = 3 pack-list &&
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git gc --keep-largest-pack &&
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( cd .git/objects/pack && ls *.pack ) >pack-list &&
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test_line_count = 2 pack-list &&
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awk "/^P /{print \$2}" <.git/objects/info/packs >pack-info &&
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test_line_count = 2 pack-info &&
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test_path_is_file $BASE_PACK &&
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git fsck
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)
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'
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test_expect_success 'auto gc with too many loose objects does not attempt to create bitmaps' '
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test_config gc.auto 3 &&
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test_config gc.autodetach false &&
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test_config pack.writebitmaps true &&
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# We need to create two object whose sha1s start with 17
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# since this is what git gc counts. As it happens, these
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# two blobs will do so.
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test_commit "$(test_oid obj1)" &&
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test_commit "$(test_oid obj2)" &&
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# Our first gc will create a pack; our second will create a second pack
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git gc --auto &&
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ls .git/objects/pack | sort >existing_packs &&
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test_commit "$(test_oid obj3)" &&
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test_commit "$(test_oid obj4)" &&
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git gc --auto 2>err &&
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test_i18ngrep ! "^warning:" err &&
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ls .git/objects/pack/ | sort >post_packs &&
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comm -1 -3 existing_packs post_packs >new &&
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comm -2 -3 existing_packs post_packs >del &&
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test_line_count = 0 del && # No packs are deleted
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test_line_count = 2 new # There is one new pack and its .idx
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'
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test_expect_success 'gc --no-quiet' '
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GIT_PROGRESS_DELAY=0 git -c gc.writeCommitGraph=true gc --no-quiet >stdout 2>stderr &&
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test_must_be_empty stdout &&
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test_i18ngrep "Computing commit graph generation numbers" stderr
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'
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test_expect_success TTY 'with TTY: gc --no-quiet' '
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test_terminal env GIT_PROGRESS_DELAY=0 \
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git -c gc.writeCommitGraph=true gc --no-quiet >stdout 2>stderr &&
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test_must_be_empty stdout &&
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test_i18ngrep "Enumerating objects" stderr &&
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test_i18ngrep "Computing commit graph generation numbers" stderr
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'
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test_expect_success 'gc --quiet' '
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git -c gc.writeCommitGraph=true gc --quiet >stdout 2>stderr &&
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test_must_be_empty stdout &&
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test_must_be_empty stderr
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'
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test_expect_success 'gc.reflogExpire{Unreachable,}=never skips "expire" via "gc"' '
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test_config gc.reflogExpire never &&
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test_config gc.reflogExpireUnreachable never &&
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GIT_TRACE=$(pwd)/trace.out git gc &&
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# Check that git-pack-refs is run as a sanity check (done via
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# gc_before_repack()) but that git-expire is not.
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grep -E "^trace: (built-in|exec|run_command): git pack-refs --" trace.out &&
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! grep -E "^trace: (built-in|exec|run_command): git reflog expire --" trace.out
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'
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test_expect_success 'one of gc.reflogExpire{Unreachable,}=never does not skip "expire" via "gc"' '
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>trace.out &&
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test_config gc.reflogExpire never &&
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GIT_TRACE=$(pwd)/trace.out git gc &&
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grep -E "^trace: (built-in|exec|run_command): git reflog expire --" trace.out
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'
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run_and_wait_for_auto_gc () {
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# We read stdout from gc for the side effect of waiting until the
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# background gc process exits, closing its fd 9. Furthermore, the
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# variable assignment from a command substitution preserves the
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# exit status of the main gc process.
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# Note: this fd trickery doesn't work on Windows, but there is no
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# need to, because on Win the auto gc always runs in the foreground.
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doesnt_matter=$(git gc --auto 9>&1)
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}
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test_expect_success 'background auto gc does not run if gc.log is present and recent but does if it is old' '
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test_commit foo &&
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test_commit bar &&
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git repack &&
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test_config gc.autopacklimit 1 &&
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test_config gc.autodetach true &&
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echo fleem >.git/gc.log &&
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git gc --auto 2>err &&
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test_i18ngrep "^warning:" err &&
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test_config gc.logexpiry 5.days &&
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test-tool chmtime =-345600 .git/gc.log &&
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git gc --auto &&
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test_config gc.logexpiry 2.days &&
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run_and_wait_for_auto_gc &&
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ls .git/objects/pack/pack-*.pack >packs &&
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test_line_count = 1 packs
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'
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test_expect_success 'background auto gc respects lock for all operations' '
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# make sure we run a background auto-gc
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test_commit make-pack &&
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git repack &&
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test_config gc.autopacklimit 1 &&
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test_config gc.autodetach true &&
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# create a ref whose loose presence we can use to detect a pack-refs run
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git update-ref refs/heads/should-be-loose HEAD &&
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test_path_is_file .git/refs/heads/should-be-loose &&
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# now fake a concurrent gc that holds the lock; we can use our
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# shell pid so that it looks valid.
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hostname=$(hostname || echo unknown) &&
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shell_pid=$$ &&
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if test_have_prereq MINGW && test -f /proc/$shell_pid/winpid
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then
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# In Git for Windows, Bash (actually, the MSYS2 runtime) has a
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# different idea of PIDs than git.exe (actually Windows). Use
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# the Windows PID in this case.
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shell_pid=$(cat /proc/$shell_pid/winpid)
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fi &&
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printf "%d %s" "$shell_pid" "$hostname" >.git/gc.pid &&
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# our gc should exit zero without doing anything
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run_and_wait_for_auto_gc &&
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test_path_is_file .git/refs/heads/should-be-loose
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'
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# DO NOT leave a detached auto gc process running near the end of the
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# test script: it can run long enough in the background to racily
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# interfere with the cleanup in 'test_done'.
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test_done
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