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|
#!/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 &&
# These are simply values which, when hashed as a blob with a newline,
# produce a hash where the first byte is 0x17 in their respective
# algorithms.
test_oid_cache <<-EOF
obj1 sha1:263
obj1 sha256:34
obj2 sha1:410
obj2 sha256:174
obj3 sha1:523
obj3 sha256:313
obj4 sha1:790
obj4 sha256:481
EOF
'
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 $BASE_PACK &&
git fsck
)
'
test_expect_success 'auto gc with too many loose objects does not attempt to create bitmaps' '
test_config gc.auto 3 &&
test_config gc.autodetach false &&
test_config pack.writebitmaps true &&
# We need to create two object whose sha1s start with 17
# since this is what git gc counts. As it happens, these
# two blobs will do so.
test_commit "$(test_oid obj1)" &&
test_commit "$(test_oid obj2)" &&
# Our first gc will create a pack; our second will create a second pack
git gc --auto &&
ls .git/objects/pack | sort >existing_packs &&
test_commit "$(test_oid obj3)" &&
test_commit "$(test_oid obj4)" &&
git gc --auto 2>err &&
test_i18ngrep ! "^warning:" err &&
ls .git/objects/pack/ | sort >post_packs &&
comm -1 -3 existing_packs post_packs >new &&
comm -2 -3 existing_packs post_packs >del &&
test_line_count = 0 del && # No packs are deleted
test_line_count = 2 new # There is one new pack and its .idx
'
test_expect_success 'gc --no-quiet' '
GIT_PROGRESS_DELAY=0 git -c gc.writeCommitGraph=true gc --no-quiet >stdout 2>stderr &&
test_must_be_empty stdout &&
test_i18ngrep "Computing commit graph generation numbers" stderr
'
test_expect_success TTY 'with TTY: gc --no-quiet' '
test_terminal env GIT_PROGRESS_DELAY=0 \
git -c gc.writeCommitGraph=true gc --no-quiet >stdout 2>stderr &&
test_must_be_empty stdout &&
test_i18ngrep "Enumerating objects" stderr &&
test_i18ngrep "Computing commit graph generation numbers" stderr
'
test_expect_success 'gc --quiet' '
git -c gc.writeCommitGraph=true gc --quiet >stdout 2>stderr &&
test_must_be_empty stdout &&
test_must_be_empty stderr
'
test_expect_success 'gc.reflogExpire{Unreachable,}=never skips "expire" via "gc"' '
test_config gc.reflogExpire never &&
test_config gc.reflogExpireUnreachable never &&
GIT_TRACE=$(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
|
