hashmap: add API to disable item counting when threaded

diff --git a/t/t4200-rerere.sh b/t/t4200-rerere.sh
index 1a080e782371e2d7ad489c706a54fce1553b9579..d97d2bebc9850c8ba96a8263ed081fced2ecc153 100755 (executable)
--- a/t/t4200-rerere.sh
+++ b/t/t4200-rerere.sh
@@ -239,6 +239,43 @@ test_expect_success 'old records rest in peace' '
        ! test -f $rr2/preimage
 '
 
+rerere_gc_custom_expiry_test () {
+       five_days="$1" right_now="$2"
+       test_expect_success "rerere gc with custom expiry ($five_days, $right_now)" '
+               rm -fr .git/rr-cache &&
+               rr=.git/rr-cache/$_z40 &&
+               mkdir -p "$rr" &&
+               >"$rr/preimage" &&
+               >"$rr/postimage" &&
+
+               two_days_ago=$((-2*86400)) &&
+               test-chmtime =$two_days_ago "$rr/preimage" &&
+               test-chmtime =$two_days_ago "$rr/postimage" &&
+
+               find .git/rr-cache -type f | sort >original &&
+
+               git -c "gc.rerereresolved=$five_days" \
+                   -c "gc.rerereunresolved=$five_days" rerere gc &&
+               find .git/rr-cache -type f | sort >actual &&
+               test_cmp original actual &&
+
+               git -c "gc.rerereresolved=$five_days" \
+                   -c "gc.rerereunresolved=$right_now" rerere gc &&
+               find .git/rr-cache -type f | sort >actual &&
+               test_cmp original actual &&
+
+               git -c "gc.rerereresolved=$right_now" \
+                   -c "gc.rerereunresolved=$right_now" rerere gc &&
+               find .git/rr-cache -type f | sort >actual &&
+               >expect &&
+               test_cmp expect actual
+       '
+}
+
+rerere_gc_custom_expiry_test 5 0
+
+rerere_gc_custom_expiry_test 5.days.ago now
+
 test_expect_success 'setup: file2 added differently in two branches' '
        git reset --hard &&
 
@@ -419,24 +456,6 @@ count_pre_post () {
        test_line_count = "$2" actual
 }
 
-test_expect_success 'rerere gc' '
-       find .git/rr-cache -type f >original &&
-       xargs test-chmtime -172800 <original &&
-
-       git -c gc.rerereresolved=5 -c gc.rerereunresolved=5 rerere gc &&
-       find .git/rr-cache -type f >actual &&
-       test_cmp original actual &&
-
-       git -c gc.rerereresolved=5 -c gc.rerereunresolved=0 rerere gc &&
-       find .git/rr-cache -type f >actual &&
-       test_cmp original actual &&
-
-       git -c gc.rerereresolved=0 -c gc.rerereunresolved=0 rerere gc &&
-       find .git/rr-cache -type f >actual &&
-       >expect &&
-       test_cmp expect actual
-'
-
 merge_conflict_resolve () {
        git reset --hard &&
        test_must_fail git merge six.1 &&
@@ -446,6 +465,8 @@ merge_conflict_resolve () {
 }
 
 test_expect_success 'multiple identical conflicts' '
+       rm -fr .git/rr-cache &&
+       mkdir .git/rr-cache &&
        git reset --hard &&
 
        test_seq 1 6 >early &&