Merge branch 'hn/reflog-tests'

Prepare tests on ref API to help testing reftable backends.

* hn/reflog-tests:
  refs/debug: trim trailing LF from reflog message
  test-ref-store: tweaks to for-each-reflog-ent format
  t1405: check for_each_reflog_ent_reverse() more thoroughly
  test-ref-store: don't add newline to reflog message
  show-branch: show reflog message

builtin/show-branch.c

@@ -761,6 +761,7 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
 			char *logmsg;
 			char *nth_desc;
 			const char *msg;
+			char *end;
 			timestamp_t timestamp;
 			int tz;
 
@@ -770,11 +771,12 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
 				reflog = i;
 				break;
 			}
-			msg = strchr(logmsg, '\t');
+
-			if (!msg)
+			end = strchr(logmsg, '\n');
-				msg = "(none)";
+			if (end)
-			else
+				*end = '\0';
-				msg++;
+
+			msg = (*logmsg == '\0') ? "(none)" : logmsg;
 			reflog_msg[i] = xstrfmt("(%s) %s",
 						show_date(timestamp, tz,
 							  DATE_MODE(RELATIVE)),

refs/debug.c

@@ -284,6 +284,7 @@ static int debug_print_reflog_ent(struct object_id *old_oid,
 	int ret;
 	char o[GIT_MAX_HEXSZ + 1] = "null";
 	char n[GIT_MAX_HEXSZ + 1] = "null";
+	char *msgend = strchrnul(msg, '\n');
 	if (old_oid)
 		oid_to_hex_r(o, old_oid);
 	if (new_oid)
@@ -291,8 +292,10 @@ static int debug_print_reflog_ent(struct object_id *old_oid,
 
 	ret = dbg->fn(old_oid, new_oid, committer, timestamp, tz, msg,
 		      dbg->cb_data);
-	trace_printf_key(&trace_refs, "reflog_ent %s (ret %d): %s -> %s, %s %ld \"%s\"\n",
+	trace_printf_key(&trace_refs,
-		dbg->refname, ret, o, n, committer, (long int)timestamp, msg);
+			 "reflog_ent %s (ret %d): %s -> %s, %s %ld \"%.*s\"\n",
+			 dbg->refname, ret, o, n, committer,
+			 (long int)timestamp, (int)(msgend - msg), msg);
 	return ret;
 }
 

t/helper/test-ref-store.c

@@ -152,9 +152,9 @@ static int each_reflog(struct object_id *old_oid, struct object_id *new_oid,
 		       const char *committer, timestamp_t timestamp,
 		       int tz, const char *msg, void *cb_data)
 {
-	printf("%s %s %s %"PRItime" %d %s\n",
+	printf("%s %s %s %" PRItime " %+05d%s%s", oid_to_hex(old_oid),
-	       oid_to_hex(old_oid), oid_to_hex(new_oid),
+	       oid_to_hex(new_oid), committer, timestamp, tz,
-	       committer, timestamp, tz, msg);
+	       *msg == '\n' ? "" : "\t", msg);
 	return 0;
 }
 

t/t1400-update-ref.sh

@@ -321,8 +321,9 @@ $A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150260 +0000	Switch
 $B $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150860 +0000
 EOF
 test_expect_success "verifying $m's log (logged by touch)" '
-	test_when_finished "rm -rf .git/$m .git/logs expect" &&
+	test_when_finished "git update-ref -d $m && rm -rf .git/logs actual expect" &&
-	test_cmp expect .git/logs/$m
+	test-tool ref-store main for-each-reflog-ent $m >actual &&
+	test_cmp actual expect
 '
 
 test_expect_success "create $m (logged by config)" '
@@ -350,8 +351,9 @@ $A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150380 +0000	Switch
 $B $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150980 +0000
 EOF
 test_expect_success "verifying $m's log (logged by config)" '
-	test_when_finished "rm -f .git/$m .git/logs/$m expect" &&
+	test_when_finished "git update-ref -d $m && rm -rf .git/logs actual expect" &&
-	test_cmp expect .git/logs/$m
+	test-tool ref-store main for-each-reflog-ent $m >actual &&
+	test_cmp actual expect
 '
 
 test_expect_success 'set up for querying the reflog' '
@@ -467,7 +469,8 @@ $h_OTHER $h_FIXED $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117151040 +0000	co
 $h_FIXED $h_MERGED $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117151100 +0000	commit (merge): Merged initial commit and a later commit.
 EOF
 test_expect_success 'git commit logged updates' '
-	test_cmp expect .git/logs/$m
+	test-tool ref-store main for-each-reflog-ent $m >actual &&
+	test_cmp expect actual
 '
 unset h_TEST h_OTHER h_FIXED h_MERGED
 

t/t1405-main-ref-store.sh

@@ -89,13 +89,13 @@ test_expect_success 'for_each_reflog()' '
 test_expect_success 'for_each_reflog_ent()' '
 	$RUN for-each-reflog-ent HEAD >actual &&
 	head -n1 actual | grep one &&
-	tail -n2 actual | head -n1 | grep recreate-main
+	tail -n1 actual | grep recreate-main
 '
 
 test_expect_success 'for_each_reflog_ent_reverse()' '
 	$RUN for-each-reflog-ent-reverse HEAD >actual &&
 	head -n1 actual | grep recreate-main &&
-	tail -n2 actual | head -n1 | grep one
+	tail -n1 actual | grep one
 '
 
 test_expect_success 'reflog_exists(HEAD)' '

t/t1406-submodule-ref-store.sh

@@ -75,13 +75,13 @@ test_expect_success 'for_each_reflog()' '
 test_expect_success 'for_each_reflog_ent()' '
 	$RUN for-each-reflog-ent HEAD >actual &&
 	head -n1 actual | grep first &&
-	tail -n2 actual | head -n1 | grep main.to.new
+	tail -n1 actual | grep main.to.new
 '
 
 test_expect_success 'for_each_reflog_ent_reverse()' '
 	$RUN for-each-reflog-ent-reverse HEAD >actual &&
 	head -n1 actual | grep main.to.new &&
-	tail -n2 actual | head -n1 | grep first
+	tail -n1 actual | grep first
 '
 
 test_expect_success 'reflog_exists(HEAD)' '

t/t3202-show-branch.sh

@@ -4,6 +4,9 @@ test_description='test show-branch'
 
 . ./test-lib.sh
 
+# arbitrary reference time: 2009-08-30 19:20:00
+GIT_TEST_DATE_NOW=1251660000; export GIT_TEST_DATE_NOW
+
 test_expect_success 'setup' '
 	test_commit initial &&
 	for i in $(test_seq 1 10)
@@ -146,4 +149,16 @@ test_expect_success 'show branch --merge-base with N arguments' '
 	test_cmp expect actual
 '
 
+test_expect_success 'show branch --reflog=2' '
+	sed "s/^>	//" >expect <<-\EOF &&
+	>	! [refs/heads/branch10@{0}] (4 years, 5 months ago) commit: branch10
+	>	 ! [refs/heads/branch10@{1}] (4 years, 5 months ago) commit: branch10
+	>	--
+	>	+  [refs/heads/branch10@{0}] branch10
+	>	++ [refs/heads/branch10@{1}] initial
+	EOF
+	git show-branch --reflog=2 >actual &&
+	test_cmp actual expect
+'
+
 test_done