gc: add tests for --cruft and friends
In 5b92477f89 (builtin/gc.c: conditionally avoid pruning objects via
loose, 2022-05-20) gc learned to respect '--cruft' and 'gc.cruftPacks'.
'--cruft' is exercised in t5329-pack-objects-cruft.sh, but in a way that
doesn't check whether a lone gc run generates these cruft packs.
'gc.cruftPacks' is never exercised.
Add some tests to exercise these options to gc in the gc test suite.
Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/t6500-gc.sh b/t/t6500-gc.sh
index cd6c533..928a522 100755
--- a/t/t6500-gc.sh
+++ b/t/t6500-gc.sh
@@ -202,6 +202,49 @@
grep -E "^trace: (built-in|exec|run_command): git reflog expire --" trace.out
'
+prepare_cruft_history () {
+ test_commit base &&
+
+ test_commit --no-tag foo &&
+ test_commit --no-tag bar &&
+ git reset HEAD^^
+}
+
+assert_cruft_packs () {
+ find .git/objects/pack -name "*.mtimes" >mtimes &&
+ sed -e 's/\.mtimes$/\.pack/g' mtimes >packs &&
+
+ test_file_not_empty packs &&
+ while read pack
+ do
+ test_path_is_file "$pack" || return 1
+ done <packs
+}
+
+test_expect_success 'gc --cruft generates a cruft pack' '
+ test_when_finished "rm -fr crufts" &&
+ git init crufts &&
+ (
+ cd crufts &&
+
+ prepare_cruft_history &&
+ git gc --cruft &&
+ assert_cruft_packs
+ )
+'
+
+test_expect_success 'gc.cruftPacks=true generates a cruft pack' '
+ test_when_finished "rm -fr crufts" &&
+ git init crufts &&
+ (
+ cd crufts &&
+
+ prepare_cruft_history &&
+ git -c gc.cruftPacks=true gc &&
+ assert_cruft_packs
+ )
+'
+
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
