[PATCH v1 3/4] notes: avoid "too many arguments"

[Junio C Hamano <gitster@pobox.com>]

Imagine seeing your command failing with "too many arguments" when
you run "git cmd foo bar baz".  Can you tell it will work if you
said "git cmd foo bar"?  Or is that trimming your command line too
much?  Too little?

Instead, if the command reports "unknown argument: 'bar'", you'd know
that "bar" and everything after it is unwanted.

Let's make it so for "git notes".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin/notes.c  | 18 +++++++++---------
 t/t3301-notes.sh |  2 +-
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/builtin/notes.c b/builtin/notes.c
index d9c356e354..235baeb118 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -447,7 +447,7 @@ static int list(int argc, const char **argv, const char *prefix)
 				     git_notes_list_usage, 0);
 
 	if (1 < argc) {
-		error(_("too many arguments"));
+		error(_("unknown argument: '%s'"), argv[1]);
 		usage_with_options(git_notes_list_usage, options);
 	}
 
@@ -509,7 +509,7 @@ static int add(int argc, const char **argv, const char *prefix)
 			     PARSE_OPT_KEEP_ARGV0);
 
 	if (2 < argc) {
-		error(_("too many arguments"));
+		error(_("unknown argument: '%s'"), argv[2]);
 		usage_with_options(git_notes_add_usage, options);
 	}
 
@@ -591,7 +591,7 @@ static int copy(int argc, const char **argv, const char *prefix)
 
 	if (from_stdin || rewrite_cmd) {
 		if (argc) {
-			error(_("too many arguments"));
+			error(_("unknown argument: '%s'"), argv[0]);
 			usage_with_options(git_notes_copy_usage, options);
 		} else {
 			return notes_copy_from_stdin(force, rewrite_cmd);
@@ -603,7 +603,7 @@ static int copy(int argc, const char **argv, const char *prefix)
 		usage_with_options(git_notes_copy_usage, options);
 	}
 	if (2 < argc) {
-		error(_("too many arguments"));
+		error(_("unknown argument: '%s'"), argv[2]);
 		usage_with_options(git_notes_copy_usage, options);
 	}
 
@@ -686,7 +686,7 @@ static int append_edit(int argc, const char **argv, const char *prefix)
 			     PARSE_OPT_KEEP_ARGV0);
 
 	if (2 < argc) {
-		error(_("too many arguments"));
+		error(_("unknown argument: '%s'"), argv[2]);
 		usage_with_options(usage, options);
 	}
 
@@ -762,7 +762,7 @@ static int show(int argc, const char **argv, const char *prefix)
 			     0);
 
 	if (1 < argc) {
-		error(_("too many arguments"));
+		error(_("unknown argument: '%s'"), argv[1]);
 		usage_with_options(git_notes_show_usage, options);
 	}
 
@@ -915,7 +915,7 @@ static int merge(int argc, const char **argv, const char *prefix)
 		error(_("must specify a notes ref to merge"));
 		usage_with_options(git_notes_merge_usage, options);
 	} else if (!do_merge && argc) {
-		error(_("too many arguments"));
+		error(_("unknown argument: '%s'"), argv[0]);
 		usage_with_options(git_notes_merge_usage, options);
 	}
 
@@ -1069,7 +1069,7 @@ static int prune(int argc, const char **argv, const char *prefix)
 			     0);
 
 	if (argc) {
-		error(_("too many arguments"));
+		error(_("unknown argument: '%s'"), argv[0]);
 		usage_with_options(git_notes_prune_usage, options);
 	}
 
@@ -1091,7 +1091,7 @@ static int get_ref(int argc, const char **argv, const char *prefix)
 			     git_notes_get_ref_usage, 0);
 
 	if (argc) {
-		error(_("too many arguments"));
+		error(_("unknown argument: '%s'"), argv[0]);
 		usage_with_options(git_notes_get_ref_usage, options);
 	}
 
diff --git a/t/t3301-notes.sh b/t/t3301-notes.sh
index 536bd11ff4..9db6a2f5c4 100755
--- a/t/t3301-notes.sh
+++ b/t/t3301-notes.sh
@@ -1472,7 +1472,7 @@ test_expect_success 'git notes copy diagnoses too many or too few arguments' '
 	test_must_fail git notes copy 2>error &&
 	test_grep "too few arguments" error &&
 	test_must_fail git notes copy one two three 2>error &&
-	test_grep "too many arguments" error
+	test_grep "unknown argument: ${SQ}three${SQ}" error
 '
 
 test_expect_success 'git notes get-ref expands refs/heads/main to refs/notes/refs/heads/main' '
-- 
2.46.0-235-g968ce1ce0e