git-check-attr: Process command-line args more systematically

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Michael Haggerty committed Aug 4, 2011 at 06:36 UTC 72541040c3ed00084344de5bf75cbc5a514504bb
1 file changed +12 -7
builtin/check-attr.c
+12 -7
@@ -81,8 +81,6 @@ int cmd_check_attr(int argc, const char **argv, const char *prefix)
81
82 argc = parse_options(argc, argv, prefix, check_attr_options,
83 check_attr_usage, PARSE_OPT_KEEP_DASHDASH);
84 - if (!argc)
85 - usage_with_options(check_attr_usage, check_attr_options);
84
85 if (read_cache() < 0) {
86 die("invalid cache");
@@ -94,8 +92,17 @@ int cmd_check_attr(int argc, const char **argv, const char *prefix)
92 doubledash = i;
93 }
94
97 - /* If there is no double dash, we handle only one attribute */
98 - if (doubledash < 0) {
95 + /* Check attribute argument(s): */
96 + if (doubledash == 0) {
97 + error_with_usage("No attribute specified");
98 + } else if (doubledash < 0) {
99 + /*
100 + * There is no double dash; treat the first
101 + * argument as an attribute.
102 + */
103 + if (!argc)
104 + error_with_usage("No attribute specified");
105 +
106 cnt = 1;
107 filei = 1;
108 } else {
@@ -103,9 +110,7 @@ int cmd_check_attr(int argc, const char **argv, const char *prefix)
110 filei = doubledash + 1;
111 }
112
106 - if (cnt <= 0)
107 - error_with_usage("No attribute specified");
108 -
113 + /* Check file argument(s): */
114 if (stdin_paths && filei < argc)
115 error_with_usage("Can't specify files with --stdin");
116