entry.c: mark file-local function static
[git/git.git] / parse-options.c
CommitLineData
4a59fd13
PH
1#include "git-compat-util.h"
2#include "parse-options.h"
26141b5b 3#include "cache.h"
269defdf 4#include "commit.h"
4a59fd13
PH
5
6#define OPT_SHORT 1
7#define OPT_UNSET 2
8
4a59fd13
PH
9static int opterror(const struct option *opt, const char *reason, int flags)
10{
11 if (flags & OPT_SHORT)
12 return error("switch `%c' %s", opt->short_name, reason);
13 if (flags & OPT_UNSET)
14 return error("option `no-%s' %s", opt->long_name, reason);
15 return error("option `%s' %s", opt->long_name, reason);
16}
17
1cc6985c
PH
18static int get_arg(struct parse_opt_ctx_t *p, const struct option *opt,
19 int flags, const char **arg)
20{
21 if (p->opt) {
22 *arg = p->opt;
23 p->opt = NULL;
24 } else if (p->argc == 1 && (opt->flags & PARSE_OPT_LASTARG_DEFAULT)) {
25 *arg = (const char *)opt->defval;
d5d745f9 26 } else if (p->argc > 1) {
1cc6985c
PH
27 p->argc--;
28 *arg = *++p->argv;
29 } else
30 return opterror(opt, "requires a value", flags);
31 return 0;
32}
33
df217ed6
SB
34static void fix_filename(const char *prefix, const char **file)
35{
36 if (!file || !*file || !prefix || is_absolute_path(*file)
37 || !strcmp("-", *file))
38 return;
39 *file = xstrdup(prefix_filename(prefix, strlen(prefix), *file));
40}
41
7e7bbcb4 42static int get_value(struct parse_opt_ctx_t *p,
1cc6985c 43 const struct option *opt, int flags)
4a59fd13 44{
ffe659f9 45 const char *s, *arg;
db7244bd 46 const int unset = flags & OPT_UNSET;
df217ed6 47 int err;
4a59fd13 48
db7244bd 49 if (unset && p->opt)
4a59fd13 50 return opterror(opt, "takes no value", flags);
db7244bd
PH
51 if (unset && (opt->flags & PARSE_OPT_NONEG))
52 return opterror(opt, "isn't available", flags);
4a59fd13 53
db7244bd
PH
54 if (!(flags & OPT_SHORT) && p->opt) {
55 switch (opt->type) {
56 case OPTION_CALLBACK:
57 if (!(opt->flags & PARSE_OPT_NOARG))
58 break;
59 /* FALLTHROUGH */
60 case OPTION_BOOLEAN:
61 case OPTION_BIT:
2f4b97f9 62 case OPTION_NEGBIT:
db7244bd
PH
63 case OPTION_SET_INT:
64 case OPTION_SET_PTR:
4a59fd13 65 return opterror(opt, "takes no value", flags);
db7244bd
PH
66 default:
67 break;
68 }
69 }
70
db7244bd
PH
71 switch (opt->type) {
72 case OPTION_BIT:
73 if (unset)
74 *(int *)opt->value &= ~opt->defval;
4a59fd13 75 else
db7244bd
PH
76 *(int *)opt->value |= opt->defval;
77 return 0;
78
2f4b97f9
RS
79 case OPTION_NEGBIT:
80 if (unset)
81 *(int *)opt->value |= opt->defval;
82 else
83 *(int *)opt->value &= ~opt->defval;
84 return 0;
85
db7244bd
PH
86 case OPTION_BOOLEAN:
87 *(int *)opt->value = unset ? 0 : *(int *)opt->value + 1;
88 return 0;
89
90 case OPTION_SET_INT:
91 *(int *)opt->value = unset ? 0 : opt->defval;
92 return 0;
93
94 case OPTION_SET_PTR:
95 *(void **)opt->value = unset ? NULL : (void *)opt->defval;
4a59fd13
PH
96 return 0;
97
98 case OPTION_STRING:
1cc6985c 99 if (unset)
db7244bd 100 *(const char **)opt->value = NULL;
1cc6985c 101 else if (opt->flags & PARSE_OPT_OPTARG && !p->opt)
ffe659f9 102 *(const char **)opt->value = (const char *)opt->defval;
1cc6985c
PH
103 else
104 return get_arg(p, opt, flags, (const char **)opt->value);
4a59fd13
PH
105 return 0;
106
df217ed6
SB
107 case OPTION_FILENAME:
108 err = 0;
109 if (unset)
110 *(const char **)opt->value = NULL;
111 else if (opt->flags & PARSE_OPT_OPTARG && !p->opt)
112 *(const char **)opt->value = (const char *)opt->defval;
113 else
114 err = get_arg(p, opt, flags, (const char **)opt->value);
115
116 if (!err)
117 fix_filename(p->prefix, (const char **)opt->value);
118 return err;
119
ffe659f9 120 case OPTION_CALLBACK:
db7244bd 121 if (unset)
07fe54db 122 return (*opt->callback)(opt, NULL, 1) ? (-1) : 0;
db7244bd 123 if (opt->flags & PARSE_OPT_NOARG)
07fe54db 124 return (*opt->callback)(opt, NULL, 0) ? (-1) : 0;
c43a2483 125 if (opt->flags & PARSE_OPT_OPTARG && !p->opt)
07fe54db 126 return (*opt->callback)(opt, NULL, 0) ? (-1) : 0;
1cc6985c
PH
127 if (get_arg(p, opt, flags, &arg))
128 return -1;
129 return (*opt->callback)(opt, arg, 0) ? (-1) : 0;
ffe659f9 130
4a59fd13 131 case OPTION_INTEGER:
db7244bd 132 if (unset) {
4a59fd13
PH
133 *(int *)opt->value = 0;
134 return 0;
135 }
c43a2483 136 if (opt->flags & PARSE_OPT_OPTARG && !p->opt) {
ffe659f9
PH
137 *(int *)opt->value = opt->defval;
138 return 0;
139 }
1cc6985c
PH
140 if (get_arg(p, opt, flags, &arg))
141 return -1;
142 *(int *)opt->value = strtol(arg, (char **)&s, 10);
4a59fd13
PH
143 if (*s)
144 return opterror(opt, "expects a numerical value", flags);
145 return 0;
146
147 default:
148 die("should not happen, someone must be hit on the forehead");
149 }
150}
151
7e7bbcb4 152static int parse_short_opt(struct parse_opt_ctx_t *p, const struct option *options)
4a59fd13 153{
e0319ff5
RS
154 const struct option *numopt = NULL;
155
4a59fd13
PH
156 for (; options->type != OPTION_END; options++) {
157 if (options->short_name == *p->opt) {
158 p->opt = p->opt[1] ? p->opt + 1 : NULL;
159 return get_value(p, options, OPT_SHORT);
160 }
e0319ff5
RS
161
162 /*
163 * Handle the numerical option later, explicit one-digit
164 * options take precedence over it.
165 */
166 if (options->type == OPTION_NUMBER)
167 numopt = options;
168 }
169 if (numopt && isdigit(*p->opt)) {
170 size_t len = 1;
171 char *arg;
172 int rc;
173
174 while (isdigit(p->opt[len]))
175 len++;
176 arg = xmemdupz(p->opt, len);
177 p->opt = p->opt[len] ? p->opt + len : NULL;
178 rc = (*numopt->callback)(numopt, arg, 0) ? (-1) : 0;
179 free(arg);
180 return rc;
4a59fd13 181 }
07fe54db 182 return -2;
4a59fd13
PH
183}
184
7e7bbcb4 185static int parse_long_opt(struct parse_opt_ctx_t *p, const char *arg,
4a59fd13
PH
186 const struct option *options)
187{
7f275b91 188 const char *arg_end = strchr(arg, '=');
243e0614
JS
189 const struct option *abbrev_option = NULL, *ambiguous_option = NULL;
190 int abbrev_flags = 0, ambiguous_flags = 0;
7f275b91
JS
191
192 if (!arg_end)
193 arg_end = arg + strlen(arg);
194
4a59fd13
PH
195 for (; options->type != OPTION_END; options++) {
196 const char *rest;
197 int flags = 0;
198
199 if (!options->long_name)
200 continue;
201
202 rest = skip_prefix(arg, options->long_name);
580d5bff
PH
203 if (options->type == OPTION_ARGUMENT) {
204 if (!rest)
205 continue;
206 if (*rest == '=')
207 return opterror(options, "takes no value", flags);
208 if (*rest)
209 continue;
210 p->out[p->cpidx++] = arg - 2;
211 return 0;
212 }
4a59fd13 213 if (!rest) {
7f275b91
JS
214 /* abbreviated? */
215 if (!strncmp(options->long_name, arg, arg_end - arg)) {
216is_abbreviated:
243e0614
JS
217 if (abbrev_option) {
218 /*
219 * If this is abbreviated, it is
220 * ambiguous. So when there is no
221 * exact match later, we need to
222 * error out.
223 */
224 ambiguous_option = abbrev_option;
225 ambiguous_flags = abbrev_flags;
226 }
7f275b91
JS
227 if (!(flags & OPT_UNSET) && *arg_end)
228 p->opt = arg_end + 1;
229 abbrev_option = options;
230 abbrev_flags = flags;
231 continue;
232 }
6bbfd1fa
AS
233 /* negation allowed? */
234 if (options->flags & PARSE_OPT_NONEG)
235 continue;
7f275b91
JS
236 /* negated and abbreviated very much? */
237 if (!prefixcmp("no-", arg)) {
238 flags |= OPT_UNSET;
239 goto is_abbreviated;
240 }
241 /* negated? */
4a59fd13
PH
242 if (strncmp(arg, "no-", 3))
243 continue;
244 flags |= OPT_UNSET;
245 rest = skip_prefix(arg + 3, options->long_name);
7f275b91
JS
246 /* abbreviated and negated? */
247 if (!rest && !prefixcmp(options->long_name, arg + 3))
248 goto is_abbreviated;
4a59fd13
PH
249 if (!rest)
250 continue;
251 }
252 if (*rest) {
253 if (*rest != '=')
254 continue;
255 p->opt = rest + 1;
256 }
257 return get_value(p, options, flags);
258 }
243e0614
JS
259
260 if (ambiguous_option)
261 return error("Ambiguous option: %s "
262 "(could be --%s%s or --%s%s)",
263 arg,
264 (ambiguous_flags & OPT_UNSET) ? "no-" : "",
265 ambiguous_option->long_name,
266 (abbrev_flags & OPT_UNSET) ? "no-" : "",
267 abbrev_option->long_name);
7f275b91
JS
268 if (abbrev_option)
269 return get_value(p, abbrev_option, abbrev_flags);
07fe54db 270 return -2;
4a59fd13
PH
271}
272
51a9949e
RS
273static int parse_nodash_opt(struct parse_opt_ctx_t *p, const char *arg,
274 const struct option *options)
275{
276 for (; options->type != OPTION_END; options++) {
277 if (!(options->flags & PARSE_OPT_NODASH))
278 continue;
279 if ((options->flags & PARSE_OPT_OPTARG) ||
280 !(options->flags & PARSE_OPT_NOARG))
281 die("BUG: dashless options don't support arguments");
282 if (!(options->flags & PARSE_OPT_NONEG))
283 die("BUG: dashless options don't support negation");
284 if (options->long_name)
285 die("BUG: dashless options can't be long");
286 if (options->short_name == arg[0] && arg[1] == '\0')
287 return get_value(p, options, OPT_SHORT);
288 }
289 return -2;
290}
291
1121a878 292static void check_typos(const char *arg, const struct option *options)
3a9f0f41
PH
293{
294 if (strlen(arg) < 3)
295 return;
296
297 if (!prefixcmp(arg, "no-")) {
298 error ("did you mean `--%s` (with two dashes ?)", arg);
299 exit(129);
300 }
301
302 for (; options->type != OPTION_END; options++) {
303 if (!options->long_name)
304 continue;
305 if (!prefixcmp(options->long_name, arg)) {
306 error ("did you mean `--%s` (with two dashes ?)", arg);
307 exit(129);
308 }
309 }
310}
311
cb9d398c
PH
312static void parse_options_check(const struct option *opts)
313{
314 int err = 0;
315
316 for (; opts->type != OPTION_END; opts++) {
317 if ((opts->flags & PARSE_OPT_LASTARG_DEFAULT) &&
318 (opts->flags & PARSE_OPT_OPTARG)) {
319 if (opts->long_name) {
320 error("`--%s` uses incompatible flags "
321 "LASTARG_DEFAULT and OPTARG", opts->long_name);
322 } else {
323 error("`-%c` uses incompatible flags "
324 "LASTARG_DEFAULT and OPTARG", opts->short_name);
325 }
326 err |= 1;
327 }
328 }
329
330 if (err)
331 exit(129);
332}
333
7e7bbcb4 334void parse_options_start(struct parse_opt_ctx_t *ctx,
37782920
SB
335 int argc, const char **argv, const char *prefix,
336 int flags)
7e7bbcb4
PH
337{
338 memset(ctx, 0, sizeof(*ctx));
339 ctx->argc = argc - 1;
340 ctx->argv = argv + 1;
341 ctx->out = argv;
37782920 342 ctx->prefix = prefix;
a32a4eaa 343 ctx->cpidx = ((flags & PARSE_OPT_KEEP_ARGV0) != 0);
7e7bbcb4 344 ctx->flags = flags;
0d260f9a
RS
345 if ((flags & PARSE_OPT_KEEP_UNKNOWN) &&
346 (flags & PARSE_OPT_STOP_AT_NON_OPTION))
347 die("STOP_AT_NON_OPTION and KEEP_UNKNOWN don't go together");
7e7bbcb4
PH
348}
349
ee68b87a 350static int usage_with_options_internal(const char * const *,
ff43ec3e 351 const struct option *, int);
dd3bf0f4 352
ff43ec3e
PH
353int parse_options_step(struct parse_opt_ctx_t *ctx,
354 const struct option *options,
355 const char * const usagestr[])
4a59fd13 356{
b92891f9
RS
357 int internal_help = !(ctx->flags & PARSE_OPT_NO_INTERNAL_HELP);
358
cb9d398c
PH
359 parse_options_check(options);
360
26141b5b
PH
361 /* we must reset ->opt, unknown short option leave it dangling */
362 ctx->opt = NULL;
363
ff43ec3e
PH
364 for (; ctx->argc; ctx->argc--, ctx->argv++) {
365 const char *arg = ctx->argv[0];
4a59fd13
PH
366
367 if (*arg != '-' || !arg[1]) {
51a9949e
RS
368 if (parse_nodash_opt(ctx, arg, options) == 0)
369 continue;
ff43ec3e 370 if (ctx->flags & PARSE_OPT_STOP_AT_NON_OPTION)
a0ec9d25 371 break;
ff43ec3e 372 ctx->out[ctx->cpidx++] = ctx->argv[0];
4a59fd13
PH
373 continue;
374 }
375
376 if (arg[1] != '-') {
ff43ec3e 377 ctx->opt = arg + 1;
b92891f9 378 if (internal_help && *ctx->opt == 'h')
ff43ec3e 379 return parse_options_usage(usagestr, options);
07fe54db
PH
380 switch (parse_short_opt(ctx, options)) {
381 case -1:
382 return parse_options_usage(usagestr, options);
383 case -2:
b5ce3a54 384 goto unknown;
07fe54db 385 }
ff43ec3e 386 if (ctx->opt)
3a9f0f41 387 check_typos(arg + 1, options);
ff43ec3e 388 while (ctx->opt) {
b92891f9 389 if (internal_help && *ctx->opt == 'h')
ff43ec3e 390 return parse_options_usage(usagestr, options);
07fe54db
PH
391 switch (parse_short_opt(ctx, options)) {
392 case -1:
393 return parse_options_usage(usagestr, options);
394 case -2:
26141b5b
PH
395 /* fake a short option thing to hide the fact that we may have
396 * started to parse aggregated stuff
397 *
398 * This is leaky, too bad.
399 */
400 ctx->argv[0] = xstrdup(ctx->opt - 1);
401 *(char *)ctx->argv[0] = '-';
b5ce3a54 402 goto unknown;
07fe54db 403 }
3a9f0f41 404 }
4a59fd13
PH
405 continue;
406 }
407
408 if (!arg[2]) { /* "--" */
ff43ec3e
PH
409 if (!(ctx->flags & PARSE_OPT_KEEP_DASHDASH)) {
410 ctx->argc--;
411 ctx->argv++;
4a59fd13
PH
412 }
413 break;
414 }
415
b92891f9 416 if (internal_help && !strcmp(arg + 2, "help-all"))
ff43ec3e 417 return usage_with_options_internal(usagestr, options, 1);
b92891f9 418 if (internal_help && !strcmp(arg + 2, "help"))
ff43ec3e 419 return parse_options_usage(usagestr, options);
07fe54db
PH
420 switch (parse_long_opt(ctx, arg + 2, options)) {
421 case -1:
422 return parse_options_usage(usagestr, options);
423 case -2:
b5ce3a54 424 goto unknown;
07fe54db 425 }
b5ce3a54
RS
426 continue;
427unknown:
428 if (!(ctx->flags & PARSE_OPT_KEEP_UNKNOWN))
429 return PARSE_OPT_UNKNOWN;
430 ctx->out[ctx->cpidx++] = ctx->argv[0];
431 ctx->opt = NULL;
ff43ec3e
PH
432 }
433 return PARSE_OPT_DONE;
434}
435
436int parse_options_end(struct parse_opt_ctx_t *ctx)
437{
438 memmove(ctx->out + ctx->cpidx, ctx->argv, ctx->argc * sizeof(*ctx->out));
439 ctx->out[ctx->cpidx + ctx->argc] = NULL;
440 return ctx->cpidx + ctx->argc;
441}
442
37782920
SB
443int parse_options(int argc, const char **argv, const char *prefix,
444 const struct option *options, const char * const usagestr[],
445 int flags)
ff43ec3e
PH
446{
447 struct parse_opt_ctx_t ctx;
448
37782920 449 parse_options_start(&ctx, argc, argv, prefix, flags);
ff43ec3e
PH
450 switch (parse_options_step(&ctx, options, usagestr)) {
451 case PARSE_OPT_HELP:
452 exit(129);
453 case PARSE_OPT_DONE:
454 break;
455 default: /* PARSE_OPT_UNKNOWN */
07fe54db
PH
456 if (ctx.argv[0][1] == '-') {
457 error("unknown option `%s'", ctx.argv[0] + 2);
458 } else {
459 error("unknown switch `%c'", *ctx.opt);
460 }
461 usage_with_options(usagestr, options);
4a59fd13
PH
462 }
463
7e7bbcb4 464 return parse_options_end(&ctx);
4a59fd13 465}
d7a38c54 466
29f25d49
SB
467static int usage_argh(const struct option *opts)
468{
469 const char *s;
34aec9f5 470 int literal = (opts->flags & PARSE_OPT_LITERAL_ARGHELP) || !opts->argh;
29f25d49
SB
471 if (opts->flags & PARSE_OPT_OPTARG)
472 if (opts->long_name)
473 s = literal ? "[=%s]" : "[=<%s>]";
474 else
475 s = literal ? "[%s]" : "[<%s>]";
476 else
477 s = literal ? " %s" : " <%s>";
34aec9f5 478 return fprintf(stderr, s, opts->argh ? opts->argh : "...");
29f25d49
SB
479}
480
d7a38c54
PH
481#define USAGE_OPTS_WIDTH 24
482#define USAGE_GAP 2
483
2af202be 484static int usage_with_options_internal(const char * const *usagestr,
ff43ec3e 485 const struct option *opts, int full)
d7a38c54 486{
49b61802
RS
487 if (!usagestr)
488 return PARSE_OPT_HELP;
489
f389c808
AR
490 fprintf(stderr, "usage: %s\n", *usagestr++);
491 while (*usagestr && **usagestr)
492 fprintf(stderr, " or: %s\n", *usagestr++);
44d86e91
JK
493 while (*usagestr) {
494 fprintf(stderr, "%s%s\n",
495 **usagestr ? " " : "",
496 *usagestr);
497 usagestr++;
498 }
d7a38c54
PH
499
500 if (opts->type != OPTION_GROUP)
f389c808 501 fputc('\n', stderr);
d7a38c54
PH
502
503 for (; opts->type != OPTION_END; opts++) {
504 size_t pos;
505 int pad;
506
507 if (opts->type == OPTION_GROUP) {
f389c808 508 fputc('\n', stderr);
d7a38c54 509 if (*opts->help)
f389c808 510 fprintf(stderr, "%s\n", opts->help);
d7a38c54
PH
511 continue;
512 }
dd3bf0f4
PH
513 if (!full && (opts->flags & PARSE_OPT_HIDDEN))
514 continue;
d7a38c54 515
f389c808 516 pos = fprintf(stderr, " ");
86b5efb2 517 if (opts->short_name && !(opts->flags & PARSE_OPT_NEGHELP)) {
51a9949e
RS
518 if (opts->flags & PARSE_OPT_NODASH)
519 pos += fprintf(stderr, "%c", opts->short_name);
520 else
521 pos += fprintf(stderr, "-%c", opts->short_name);
522 }
d7a38c54 523 if (opts->long_name && opts->short_name)
f389c808 524 pos += fprintf(stderr, ", ");
d7a38c54 525 if (opts->long_name)
86b5efb2
JS
526 pos += fprintf(stderr, "--%s%s",
527 (opts->flags & PARSE_OPT_NEGHELP) ? "no-" : "",
528 opts->long_name);
e0319ff5
RS
529 if (opts->type == OPTION_NUMBER)
530 pos += fprintf(stderr, "-NUM");
d7a38c54 531
34aec9f5
SB
532 if (!(opts->flags & PARSE_OPT_NOARG))
533 pos += usage_argh(opts);
d7a38c54 534
f389c808
AR
535 if (pos <= USAGE_OPTS_WIDTH)
536 pad = USAGE_OPTS_WIDTH - pos;
d7a38c54 537 else {
f389c808 538 fputc('\n', stderr);
d7a38c54
PH
539 pad = USAGE_OPTS_WIDTH;
540 }
f389c808 541 fprintf(stderr, "%*s%s\n", pad + USAGE_GAP, "", opts->help);
d7a38c54 542 }
f389c808
AR
543 fputc('\n', stderr);
544
ee68b87a 545 return PARSE_OPT_HELP;
d7a38c54 546}
0ce865b1 547
dd3bf0f4 548void usage_with_options(const char * const *usagestr,
ff43ec3e 549 const struct option *opts)
dd3bf0f4 550{
ff43ec3e
PH
551 usage_with_options_internal(usagestr, opts, 0);
552 exit(129);
dd3bf0f4
PH
553}
554
451bb210
CC
555void usage_msg_opt(const char *msg,
556 const char * const *usagestr,
557 const struct option *options)
558{
559 fprintf(stderr, "%s\n\n", msg);
560 usage_with_options(usagestr, options);
561}
562
ee68b87a
PH
563int parse_options_usage(const char * const *usagestr,
564 const struct option *opts)
565{
ff43ec3e 566 return usage_with_options_internal(usagestr, opts, 0);
ee68b87a
PH
567}
568
569
0ce865b1
PH
570/*----- some often used options -----*/
571#include "cache.h"
db7244bd 572
0ce865b1
PH
573int parse_opt_abbrev_cb(const struct option *opt, const char *arg, int unset)
574{
575 int v;
576
577 if (!arg) {
578 v = unset ? 0 : DEFAULT_ABBREV;
579 } else {
580 v = strtol(arg, (char **)&arg, 10);
581 if (*arg)
582 return opterror(opt, "expects a numerical value", 0);
583 if (v && v < MINIMUM_ABBREV)
584 v = MINIMUM_ABBREV;
585 else if (v > 40)
586 v = 40;
587 }
588 *(int *)(opt->value) = v;
589 return 0;
590}
1f4a711a
MB
591
592int parse_opt_approxidate_cb(const struct option *opt, const char *arg,
593 int unset)
594{
595 *(unsigned long *)(opt->value) = approxidate(arg);
596 return 0;
597}
dbd0f5c7 598
7f87aff2
TA
599int parse_opt_verbosity_cb(const struct option *opt, const char *arg,
600 int unset)
601{
602 int *target = opt->value;
603
604 if (unset)
605 /* --no-quiet, --no-verbose */
606 *target = 0;
607 else if (opt->short_name == 'v') {
608 if (*target >= 0)
609 (*target)++;
610 else
611 *target = 1;
612 } else {
613 if (*target <= 0)
614 (*target)--;
615 else
616 *target = -1;
617 }
618 return 0;
619}
620
269defdf
JG
621int parse_opt_with_commit(const struct option *opt, const char *arg, int unset)
622{
623 unsigned char sha1[20];
624 struct commit *commit;
625
626 if (!arg)
627 return -1;
628 if (get_sha1(arg, sha1))
629 return error("malformed object name %s", arg);
630 commit = lookup_commit_reference(sha1);
631 if (!commit)
632 return error("no such commit %s", arg);
633 commit_list_insert(commit, opt->value);
634 return 0;
635}