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[PATCH 6/8] reflog exists: use parse_options() API

From
Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Date
Mar 17, 2022, 18:08 UTC
Message-ID
<patch-6.8-f88acdc9702-20220317T180439Z-avarab@gmail.com>
In-Reply-To
<cover-0.8-00000000000-20220317T180439Z-avarab@gmail.com>

Change the "reflog exists" command added in afcb2e7a3b8 (git-reflog: add exists command, 2015-07-21) to use parse_options() instead of its own custom command-line parser. This continues work started in 33d7bdd6459 (builtin/reflog.c: use parse-options api for expire, delete subcommands, 2022-01-06).

As a result we'll understand the --end-of-options synonym for "--", so let's test for that.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 builtin/reflog.c         | 38 ++++++++++++++++----------------------
 t/t1418-reflog-exists.sh |  5 +++++
 2 files changed, 21 insertions(+), 22 deletions(-)
diff --git a/builtin/reflog.c b/builtin/reflog.c
index 458764400b5..9847e9db3de 100644
--- a/builtin/reflog.c
+++ b/builtin/reflog.c
@@ -27,8 +27,10 @@ static const char *const reflog_delete_usage[] = {
 	NULL
 };
 
-static const char reflog_exists_usage[] =
-	BUILTIN_REFLOG_EXISTS_USAGE;
+static const char *const reflog_exists_usage[] = {
+	BUILTIN_REFLOG_EXISTS_USAGE,
+	NULL,
+};
 
 static timestamp_t default_reflog_expire;
 static timestamp_t default_reflog_expire_unreachable;
@@ -350,28 +352,20 @@ static int cmd_reflog_delete(int argc, const char **argv, const char *prefix)
 
 static int cmd_reflog_exists(int argc, const char **argv, const char *prefix)
 {
-	int i, start = 0;
-
-	for (i = 1; i < argc; i++) {
-		const char *arg = argv[i];
-		if (!strcmp(arg, "--")) {
-			i++;
-			break;
-		}
-		else if (arg[0] == '-')
-			usage(_(reflog_exists_usage));
-		else
-			break;
-	}
-
-	start = i;
+	struct option options[] = {
+		OPT_END()
+	};
+	const char *refname;
 
-	if (argc - start != 1)
-		usage(_(reflog_exists_usage));
+	argc = parse_options(argc, argv, prefix, options, reflog_exists_usage,
+			     0);
+	if (!argc)
+		usage_with_options(reflog_exists_usage, options);
 
-	if (check_refname_format(argv[start], REFNAME_ALLOW_ONELEVEL))
-		die(_("invalid ref format: %s"), argv[start]);
-	return !reflog_exists(argv[start]);
+	refname = argv[0];
+	if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL))
+		die(_("invalid ref format: %s"), refname);
+	return !reflog_exists(refname);
 }
 
 /*
diff --git a/t/t1418-reflog-exists.sh b/t/t1418-reflog-exists.sh
index 60c6411ce3c..d51ecd5e925 100755
--- a/t/t1418-reflog-exists.sh
+++ b/t/t1418-reflog-exists.sh
@@ -29,4 +29,9 @@ test_expect_success 'reflog exists works with a "--" delimiter' '
 	test_must_fail git reflog exists -- refs/heads/nonexistent
 '
 
+test_expect_success 'reflog exists works with a "--end-of-options" delimiter' '
+	git reflog exists --end-of-options refs/heads/main &&
+	test_must_fail git reflog exists --end-of-options refs/heads/nonexistent
+'
+
 test_done
-- 
2.35.1.1384.g7d2906948a1
Previous: Junio C HamanoNext: Junio C Hamano
Message 9 of 15 in “reflog: migrate fully to parse_options()”
  1. 0/8 reflog: migrate fully to parse_options()Ævar Arnfjörð Bjarmason, Mar 17, 2022
  2. 1/8 reflog.c: indent argument listsÆvar Arnfjörð Bjarmason, Mar 17, 2022
  3. John CaiMar 17, 2022
  4. 2/8 reflog: refactor cmd_reflog() to "if" branchesÆvar Arnfjörð Bjarmason, Mar 17, 2022
  5. 3/8 reflog tests: add missing "git reflog exists" testsÆvar Arnfjörð Bjarmason, Mar 17, 2022
  6. 4/8 reflog: move "usage" variables and use macrosÆvar Arnfjörð Bjarmason, Mar 17, 2022
  7. 5/8 git reflog [expire|delete]: make -h output consistent with SYNOPSISÆvar Arnfjörð Bjarmason, Mar 17, 2022
  8. Junio C HamanoMar 18, 2022
  9. 6/8 reflog exists: use parse_options() APIÆvar Arnfjörð Bjarmason, Mar 17, 2022
  10. Junio C HamanoMar 18, 2022
  11. 7/8 reflog: convert to parse_options() APIÆvar Arnfjörð Bjarmason, Mar 17, 2022
  12. Junio C HamanoMar 18, 2022
  13. 8/8 reflog [show]: display sensible -h outputÆvar Arnfjörð Bjarmason, Mar 17, 2022
  14. reflog: fix 'show' subcommand's argvSZEDER Gábor, Mar 28, 2022
  15. Junio C HamanoMar 28, 2022

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