Merge branch 'kn/ref-filter-branch-list'
[git] / builtin / config.c
1 #include "builtin.h"
2 #include "cache.h"
3 #include "config.h"
4 #include "color.h"
5 #include "parse-options.h"
6 #include "urlmatch.h"
7 #include "quote.h"
8
9 static const char *const builtin_config_usage[] = {
10         N_("git config [<options>]"),
11         NULL
12 };
13
14 static char *key;
15 static regex_t *key_regexp;
16 static regex_t *regexp;
17 static int show_keys;
18 static int omit_values;
19 static int use_key_regexp;
20 static int do_all;
21 static int do_not_match;
22 static char delim = '=';
23 static char key_delim = ' ';
24 static char term = '\n';
25
26 static int use_global_config, use_system_config, use_local_config;
27 static struct git_config_source given_config_source;
28 static int actions, types;
29 static int end_null;
30 static int respect_includes_opt = -1;
31 static struct config_options config_options;
32 static int show_origin;
33
34 #define ACTION_GET (1<<0)
35 #define ACTION_GET_ALL (1<<1)
36 #define ACTION_GET_REGEXP (1<<2)
37 #define ACTION_REPLACE_ALL (1<<3)
38 #define ACTION_ADD (1<<4)
39 #define ACTION_UNSET (1<<5)
40 #define ACTION_UNSET_ALL (1<<6)
41 #define ACTION_RENAME_SECTION (1<<7)
42 #define ACTION_REMOVE_SECTION (1<<8)
43 #define ACTION_LIST (1<<9)
44 #define ACTION_EDIT (1<<10)
45 #define ACTION_SET (1<<11)
46 #define ACTION_SET_ALL (1<<12)
47 #define ACTION_GET_COLOR (1<<13)
48 #define ACTION_GET_COLORBOOL (1<<14)
49 #define ACTION_GET_URLMATCH (1<<15)
50
51 #define TYPE_BOOL (1<<0)
52 #define TYPE_INT (1<<1)
53 #define TYPE_BOOL_OR_INT (1<<2)
54 #define TYPE_PATH (1<<3)
55
56 static struct option builtin_config_options[] = {
57         OPT_GROUP(N_("Config file location")),
58         OPT_BOOL(0, "global", &use_global_config, N_("use global config file")),
59         OPT_BOOL(0, "system", &use_system_config, N_("use system config file")),
60         OPT_BOOL(0, "local", &use_local_config, N_("use repository config file")),
61         OPT_STRING('f', "file", &given_config_source.file, N_("file"), N_("use given config file")),
62         OPT_STRING(0, "blob", &given_config_source.blob, N_("blob-id"), N_("read config from given blob object")),
63         OPT_GROUP(N_("Action")),
64         OPT_BIT(0, "get", &actions, N_("get value: name [value-regex]"), ACTION_GET),
65         OPT_BIT(0, "get-all", &actions, N_("get all values: key [value-regex]"), ACTION_GET_ALL),
66         OPT_BIT(0, "get-regexp", &actions, N_("get values for regexp: name-regex [value-regex]"), ACTION_GET_REGEXP),
67         OPT_BIT(0, "get-urlmatch", &actions, N_("get value specific for the URL: section[.var] URL"), ACTION_GET_URLMATCH),
68         OPT_BIT(0, "replace-all", &actions, N_("replace all matching variables: name value [value_regex]"), ACTION_REPLACE_ALL),
69         OPT_BIT(0, "add", &actions, N_("add a new variable: name value"), ACTION_ADD),
70         OPT_BIT(0, "unset", &actions, N_("remove a variable: name [value-regex]"), ACTION_UNSET),
71         OPT_BIT(0, "unset-all", &actions, N_("remove all matches: name [value-regex]"), ACTION_UNSET_ALL),
72         OPT_BIT(0, "rename-section", &actions, N_("rename section: old-name new-name"), ACTION_RENAME_SECTION),
73         OPT_BIT(0, "remove-section", &actions, N_("remove a section: name"), ACTION_REMOVE_SECTION),
74         OPT_BIT('l', "list", &actions, N_("list all"), ACTION_LIST),
75         OPT_BIT('e', "edit", &actions, N_("open an editor"), ACTION_EDIT),
76         OPT_BIT(0, "get-color", &actions, N_("find the color configured: slot [default]"), ACTION_GET_COLOR),
77         OPT_BIT(0, "get-colorbool", &actions, N_("find the color setting: slot [stdout-is-tty]"), ACTION_GET_COLORBOOL),
78         OPT_GROUP(N_("Type")),
79         OPT_BIT(0, "bool", &types, N_("value is \"true\" or \"false\""), TYPE_BOOL),
80         OPT_BIT(0, "int", &types, N_("value is decimal number"), TYPE_INT),
81         OPT_BIT(0, "bool-or-int", &types, N_("value is --bool or --int"), TYPE_BOOL_OR_INT),
82         OPT_BIT(0, "path", &types, N_("value is a path (file or directory name)"), TYPE_PATH),
83         OPT_GROUP(N_("Other")),
84         OPT_BOOL('z', "null", &end_null, N_("terminate values with NUL byte")),
85         OPT_BOOL(0, "name-only", &omit_values, N_("show variable names only")),
86         OPT_BOOL(0, "includes", &respect_includes_opt, N_("respect include directives on lookup")),
87         OPT_BOOL(0, "show-origin", &show_origin, N_("show origin of config (file, standard input, blob, command line)")),
88         OPT_END(),
89 };
90
91 static void check_argc(int argc, int min, int max) {
92         if (argc >= min && argc <= max)
93                 return;
94         error("wrong number of arguments");
95         usage_with_options(builtin_config_usage, builtin_config_options);
96 }
97
98 static void show_config_origin(struct strbuf *buf)
99 {
100         const char term = end_null ? '\0' : '\t';
101
102         strbuf_addstr(buf, current_config_origin_type());
103         strbuf_addch(buf, ':');
104         if (end_null)
105                 strbuf_addstr(buf, current_config_name());
106         else
107                 quote_c_style(current_config_name(), buf, NULL, 0);
108         strbuf_addch(buf, term);
109 }
110
111 static int show_all_config(const char *key_, const char *value_, void *cb)
112 {
113         if (show_origin) {
114                 struct strbuf buf = STRBUF_INIT;
115                 show_config_origin(&buf);
116                 /* Use fwrite as "buf" can contain \0's if "end_null" is set. */
117                 fwrite(buf.buf, 1, buf.len, stdout);
118                 strbuf_release(&buf);
119         }
120         if (!omit_values && value_)
121                 printf("%s%c%s%c", key_, delim, value_, term);
122         else
123                 printf("%s%c", key_, term);
124         return 0;
125 }
126
127 struct strbuf_list {
128         struct strbuf *items;
129         int nr;
130         int alloc;
131 };
132
133 static int format_config(struct strbuf *buf, const char *key_, const char *value_)
134 {
135         if (show_origin)
136                 show_config_origin(buf);
137         if (show_keys)
138                 strbuf_addstr(buf, key_);
139         if (!omit_values) {
140                 if (show_keys)
141                         strbuf_addch(buf, key_delim);
142
143                 if (types == TYPE_INT)
144                         strbuf_addf(buf, "%"PRId64,
145                                     git_config_int64(key_, value_ ? value_ : ""));
146                 else if (types == TYPE_BOOL)
147                         strbuf_addstr(buf, git_config_bool(key_, value_) ?
148                                       "true" : "false");
149                 else if (types == TYPE_BOOL_OR_INT) {
150                         int is_bool, v;
151                         v = git_config_bool_or_int(key_, value_, &is_bool);
152                         if (is_bool)
153                                 strbuf_addstr(buf, v ? "true" : "false");
154                         else
155                                 strbuf_addf(buf, "%d", v);
156                 } else if (types == TYPE_PATH) {
157                         const char *v;
158                         if (git_config_pathname(&v, key_, value_) < 0)
159                                 return -1;
160                         strbuf_addstr(buf, v);
161                         free((char *)v);
162                 } else if (value_) {
163                         strbuf_addstr(buf, value_);
164                 } else {
165                         /* Just show the key name; back out delimiter */
166                         if (show_keys)
167                                 strbuf_setlen(buf, buf->len - 1);
168                 }
169         }
170         strbuf_addch(buf, term);
171         return 0;
172 }
173
174 static int collect_config(const char *key_, const char *value_, void *cb)
175 {
176         struct strbuf_list *values = cb;
177
178         if (!use_key_regexp && strcmp(key_, key))
179                 return 0;
180         if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
181                 return 0;
182         if (regexp != NULL &&
183             (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
184                 return 0;
185
186         ALLOC_GROW(values->items, values->nr + 1, values->alloc);
187         strbuf_init(&values->items[values->nr], 0);
188
189         return format_config(&values->items[values->nr++], key_, value_);
190 }
191
192 static int get_value(const char *key_, const char *regex_)
193 {
194         int ret = CONFIG_GENERIC_ERROR;
195         struct strbuf_list values = {NULL};
196         int i;
197
198         if (use_key_regexp) {
199                 char *tl;
200
201                 /*
202                  * NEEDSWORK: this naive pattern lowercasing obviously does not
203                  * work for more complex patterns like "^[^.]*Foo.*bar".
204                  * Perhaps we should deprecate this altogether someday.
205                  */
206
207                 key = xstrdup(key_);
208                 for (tl = key + strlen(key) - 1;
209                      tl >= key && *tl != '.';
210                      tl--)
211                         *tl = tolower(*tl);
212                 for (tl = key; *tl && *tl != '.'; tl++)
213                         *tl = tolower(*tl);
214
215                 key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
216                 if (regcomp(key_regexp, key, REG_EXTENDED)) {
217                         error("invalid key pattern: %s", key_);
218                         FREE_AND_NULL(key_regexp);
219                         ret = CONFIG_INVALID_PATTERN;
220                         goto free_strings;
221                 }
222         } else {
223                 if (git_config_parse_key(key_, &key, NULL)) {
224                         ret = CONFIG_INVALID_KEY;
225                         goto free_strings;
226                 }
227         }
228
229         if (regex_) {
230                 if (regex_[0] == '!') {
231                         do_not_match = 1;
232                         regex_++;
233                 }
234
235                 regexp = (regex_t*)xmalloc(sizeof(regex_t));
236                 if (regcomp(regexp, regex_, REG_EXTENDED)) {
237                         error("invalid pattern: %s", regex_);
238                         FREE_AND_NULL(regexp);
239                         ret = CONFIG_INVALID_PATTERN;
240                         goto free_strings;
241                 }
242         }
243
244         config_with_options(collect_config, &values,
245                             &given_config_source, &config_options);
246
247         ret = !values.nr;
248
249         for (i = 0; i < values.nr; i++) {
250                 struct strbuf *buf = values.items + i;
251                 if (do_all || i == values.nr - 1)
252                         fwrite(buf->buf, 1, buf->len, stdout);
253                 strbuf_release(buf);
254         }
255         free(values.items);
256
257 free_strings:
258         free(key);
259         if (key_regexp) {
260                 regfree(key_regexp);
261                 free(key_regexp);
262         }
263         if (regexp) {
264                 regfree(regexp);
265                 free(regexp);
266         }
267
268         return ret;
269 }
270
271 static char *normalize_value(const char *key, const char *value)
272 {
273         if (!value)
274                 return NULL;
275
276         if (types == 0 || types == TYPE_PATH)
277                 /*
278                  * We don't do normalization for TYPE_PATH here: If
279                  * the path is like ~/foobar/, we prefer to store
280                  * "~/foobar/" in the config file, and to expand the ~
281                  * when retrieving the value.
282                  */
283                 return xstrdup(value);
284         if (types == TYPE_INT)
285                 return xstrfmt("%"PRId64, git_config_int64(key, value));
286         if (types == TYPE_BOOL)
287                 return xstrdup(git_config_bool(key, value) ?  "true" : "false");
288         if (types == TYPE_BOOL_OR_INT) {
289                 int is_bool, v;
290                 v = git_config_bool_or_int(key, value, &is_bool);
291                 if (!is_bool)
292                         return xstrfmt("%d", v);
293                 else
294                         return xstrdup(v ? "true" : "false");
295         }
296
297         die("BUG: cannot normalize type %d", types);
298 }
299
300 static int get_color_found;
301 static const char *get_color_slot;
302 static const char *get_colorbool_slot;
303 static char parsed_color[COLOR_MAXLEN];
304
305 static int git_get_color_config(const char *var, const char *value, void *cb)
306 {
307         if (!strcmp(var, get_color_slot)) {
308                 if (!value)
309                         config_error_nonbool(var);
310                 if (color_parse(value, parsed_color) < 0)
311                         return -1;
312                 get_color_found = 1;
313         }
314         return 0;
315 }
316
317 static void get_color(const char *var, const char *def_color)
318 {
319         get_color_slot = var;
320         get_color_found = 0;
321         parsed_color[0] = '\0';
322         config_with_options(git_get_color_config, NULL,
323                             &given_config_source, &config_options);
324
325         if (!get_color_found && def_color) {
326                 if (color_parse(def_color, parsed_color) < 0)
327                         die(_("unable to parse default color value"));
328         }
329
330         fputs(parsed_color, stdout);
331 }
332
333 static int get_colorbool_found;
334 static int get_diff_color_found;
335 static int get_color_ui_found;
336 static int git_get_colorbool_config(const char *var, const char *value,
337                 void *cb)
338 {
339         if (!strcmp(var, get_colorbool_slot))
340                 get_colorbool_found = git_config_colorbool(var, value);
341         else if (!strcmp(var, "diff.color"))
342                 get_diff_color_found = git_config_colorbool(var, value);
343         else if (!strcmp(var, "color.ui"))
344                 get_color_ui_found = git_config_colorbool(var, value);
345         return 0;
346 }
347
348 static int get_colorbool(const char *var, int print)
349 {
350         get_colorbool_slot = var;
351         get_colorbool_found = -1;
352         get_diff_color_found = -1;
353         get_color_ui_found = -1;
354         config_with_options(git_get_colorbool_config, NULL,
355                             &given_config_source, &config_options);
356
357         if (get_colorbool_found < 0) {
358                 if (!strcmp(get_colorbool_slot, "color.diff"))
359                         get_colorbool_found = get_diff_color_found;
360                 if (get_colorbool_found < 0)
361                         get_colorbool_found = get_color_ui_found;
362         }
363
364         if (get_colorbool_found < 0)
365                 /* default value if none found in config */
366                 get_colorbool_found = GIT_COLOR_AUTO;
367
368         get_colorbool_found = want_color(get_colorbool_found);
369
370         if (print) {
371                 printf("%s\n", get_colorbool_found ? "true" : "false");
372                 return 0;
373         } else
374                 return get_colorbool_found ? 0 : 1;
375 }
376
377 static void check_write(void)
378 {
379         if (!given_config_source.file && !startup_info->have_repository)
380                 die("not in a git directory");
381
382         if (given_config_source.use_stdin)
383                 die("writing to stdin is not supported");
384
385         if (given_config_source.blob)
386                 die("writing config blobs is not supported");
387 }
388
389 struct urlmatch_current_candidate_value {
390         char value_is_null;
391         struct strbuf value;
392 };
393
394 static int urlmatch_collect_fn(const char *var, const char *value, void *cb)
395 {
396         struct string_list *values = cb;
397         struct string_list_item *item = string_list_insert(values, var);
398         struct urlmatch_current_candidate_value *matched = item->util;
399
400         if (!matched) {
401                 matched = xmalloc(sizeof(*matched));
402                 strbuf_init(&matched->value, 0);
403                 item->util = matched;
404         } else {
405                 strbuf_reset(&matched->value);
406         }
407
408         if (value) {
409                 strbuf_addstr(&matched->value, value);
410                 matched->value_is_null = 0;
411         } else {
412                 matched->value_is_null = 1;
413         }
414         return 0;
415 }
416
417 static int get_urlmatch(const char *var, const char *url)
418 {
419         int ret;
420         char *section_tail;
421         struct string_list_item *item;
422         struct urlmatch_config config = { STRING_LIST_INIT_DUP };
423         struct string_list values = STRING_LIST_INIT_DUP;
424
425         config.collect_fn = urlmatch_collect_fn;
426         config.cascade_fn = NULL;
427         config.cb = &values;
428
429         if (!url_normalize(url, &config.url))
430                 die("%s", config.url.err);
431
432         config.section = xstrdup_tolower(var);
433         section_tail = strchr(config.section, '.');
434         if (section_tail) {
435                 *section_tail = '\0';
436                 config.key = section_tail + 1;
437                 show_keys = 0;
438         } else {
439                 config.key = NULL;
440                 show_keys = 1;
441         }
442
443         config_with_options(urlmatch_config_entry, &config,
444                             &given_config_source, &config_options);
445
446         ret = !values.nr;
447
448         for_each_string_list_item(item, &values) {
449                 struct urlmatch_current_candidate_value *matched = item->util;
450                 struct strbuf buf = STRBUF_INIT;
451
452                 format_config(&buf, item->string,
453                               matched->value_is_null ? NULL : matched->value.buf);
454                 fwrite(buf.buf, 1, buf.len, stdout);
455                 strbuf_release(&buf);
456
457                 strbuf_release(&matched->value);
458         }
459         string_list_clear(&config.vars, 1);
460         string_list_clear(&values, 1);
461         free(config.url.url);
462
463         free((void *)config.section);
464         return ret;
465 }
466
467 static char *default_user_config(void)
468 {
469         struct strbuf buf = STRBUF_INIT;
470         strbuf_addf(&buf,
471                     _("# This is Git's per-user configuration file.\n"
472                       "[user]\n"
473                       "# Please adapt and uncomment the following lines:\n"
474                       "#        name = %s\n"
475                       "#        email = %s\n"),
476                     ident_default_name(),
477                     ident_default_email());
478         return strbuf_detach(&buf, NULL);
479 }
480
481 int cmd_config(int argc, const char **argv, const char *prefix)
482 {
483         int nongit = !startup_info->have_repository;
484         char *value;
485
486         given_config_source.file = getenv(CONFIG_ENVIRONMENT);
487
488         argc = parse_options(argc, argv, prefix, builtin_config_options,
489                              builtin_config_usage,
490                              PARSE_OPT_STOP_AT_NON_OPTION);
491
492         if (use_global_config + use_system_config + use_local_config +
493             !!given_config_source.file + !!given_config_source.blob > 1) {
494                 error("only one config file at a time.");
495                 usage_with_options(builtin_config_usage, builtin_config_options);
496         }
497
498         if (use_local_config && nongit)
499                 die(_("--local can only be used inside a git repository"));
500
501         if (given_config_source.file &&
502                         !strcmp(given_config_source.file, "-")) {
503                 given_config_source.file = NULL;
504                 given_config_source.use_stdin = 1;
505         }
506
507         if (use_global_config) {
508                 char *user_config = expand_user_path("~/.gitconfig", 0);
509                 char *xdg_config = xdg_config_home("config");
510
511                 if (!user_config)
512                         /*
513                          * It is unknown if HOME/.gitconfig exists, so
514                          * we do not know if we should write to XDG
515                          * location; error out even if XDG_CONFIG_HOME
516                          * is set and points at a sane location.
517                          */
518                         die("$HOME not set");
519
520                 if (access_or_warn(user_config, R_OK, 0) &&
521                     xdg_config && !access_or_warn(xdg_config, R_OK, 0))
522                         given_config_source.file = xdg_config;
523                 else
524                         given_config_source.file = user_config;
525         }
526         else if (use_system_config)
527                 given_config_source.file = git_etc_gitconfig();
528         else if (use_local_config)
529                 given_config_source.file = git_pathdup("config");
530         else if (given_config_source.file) {
531                 if (!is_absolute_path(given_config_source.file) && prefix)
532                         given_config_source.file =
533                                 prefix_filename(prefix, given_config_source.file);
534         }
535
536         if (respect_includes_opt == -1)
537                 config_options.respect_includes = !given_config_source.file;
538         else
539                 config_options.respect_includes = respect_includes_opt;
540         if (!nongit) {
541                 config_options.commondir = get_git_common_dir();
542                 config_options.git_dir = get_git_dir();
543         }
544
545         if (end_null) {
546                 term = '\0';
547                 delim = '\n';
548                 key_delim = '\n';
549         }
550
551         if (HAS_MULTI_BITS(types)) {
552                 error("only one type at a time.");
553                 usage_with_options(builtin_config_usage, builtin_config_options);
554         }
555
556         if ((actions & (ACTION_GET_COLOR|ACTION_GET_COLORBOOL)) && types) {
557                 error("--get-color and variable type are incoherent");
558                 usage_with_options(builtin_config_usage, builtin_config_options);
559         }
560
561         if (HAS_MULTI_BITS(actions)) {
562                 error("only one action at a time.");
563                 usage_with_options(builtin_config_usage, builtin_config_options);
564         }
565         if (actions == 0)
566                 switch (argc) {
567                 case 1: actions = ACTION_GET; break;
568                 case 2: actions = ACTION_SET; break;
569                 case 3: actions = ACTION_SET_ALL; break;
570                 default:
571                         usage_with_options(builtin_config_usage, builtin_config_options);
572                 }
573         if (omit_values &&
574             !(actions == ACTION_LIST || actions == ACTION_GET_REGEXP)) {
575                 error("--name-only is only applicable to --list or --get-regexp");
576                 usage_with_options(builtin_config_usage, builtin_config_options);
577         }
578
579         if (show_origin && !(actions &
580                 (ACTION_GET|ACTION_GET_ALL|ACTION_GET_REGEXP|ACTION_LIST))) {
581                 error("--show-origin is only applicable to --get, --get-all, "
582                           "--get-regexp, and --list.");
583                 usage_with_options(builtin_config_usage, builtin_config_options);
584         }
585
586         if (actions == ACTION_LIST) {
587                 check_argc(argc, 0, 0);
588                 if (config_with_options(show_all_config, NULL,
589                                         &given_config_source,
590                                         &config_options) < 0) {
591                         if (given_config_source.file)
592                                 die_errno("unable to read config file '%s'",
593                                           given_config_source.file);
594                         else
595                                 die("error processing config file(s)");
596                 }
597         }
598         else if (actions == ACTION_EDIT) {
599                 char *config_file;
600
601                 check_argc(argc, 0, 0);
602                 if (!given_config_source.file && nongit)
603                         die("not in a git directory");
604                 if (given_config_source.use_stdin)
605                         die("editing stdin is not supported");
606                 if (given_config_source.blob)
607                         die("editing blobs is not supported");
608                 git_config(git_default_config, NULL);
609                 config_file = given_config_source.file ?
610                                 xstrdup(given_config_source.file) :
611                                 git_pathdup("config");
612                 if (use_global_config) {
613                         int fd = open(config_file, O_CREAT | O_EXCL | O_WRONLY, 0666);
614                         if (fd >= 0) {
615                                 char *content = default_user_config();
616                                 write_str_in_full(fd, content);
617                                 free(content);
618                                 close(fd);
619                         }
620                         else if (errno != EEXIST)
621                                 die_errno(_("cannot create configuration file %s"), config_file);
622                 }
623                 launch_editor(config_file, NULL, NULL);
624                 free(config_file);
625         }
626         else if (actions == ACTION_SET) {
627                 int ret;
628                 check_write();
629                 check_argc(argc, 2, 2);
630                 value = normalize_value(argv[0], argv[1]);
631                 ret = git_config_set_in_file_gently(given_config_source.file, argv[0], value);
632                 if (ret == CONFIG_NOTHING_SET)
633                         error(_("cannot overwrite multiple values with a single value\n"
634                         "       Use a regexp, --add or --replace-all to change %s."), argv[0]);
635                 return ret;
636         }
637         else if (actions == ACTION_SET_ALL) {
638                 check_write();
639                 check_argc(argc, 2, 3);
640                 value = normalize_value(argv[0], argv[1]);
641                 return git_config_set_multivar_in_file_gently(given_config_source.file,
642                                                               argv[0], value, argv[2], 0);
643         }
644         else if (actions == ACTION_ADD) {
645                 check_write();
646                 check_argc(argc, 2, 2);
647                 value = normalize_value(argv[0], argv[1]);
648                 return git_config_set_multivar_in_file_gently(given_config_source.file,
649                                                               argv[0], value,
650                                                               CONFIG_REGEX_NONE, 0);
651         }
652         else if (actions == ACTION_REPLACE_ALL) {
653                 check_write();
654                 check_argc(argc, 2, 3);
655                 value = normalize_value(argv[0], argv[1]);
656                 return git_config_set_multivar_in_file_gently(given_config_source.file,
657                                                               argv[0], value, argv[2], 1);
658         }
659         else if (actions == ACTION_GET) {
660                 check_argc(argc, 1, 2);
661                 return get_value(argv[0], argv[1]);
662         }
663         else if (actions == ACTION_GET_ALL) {
664                 do_all = 1;
665                 check_argc(argc, 1, 2);
666                 return get_value(argv[0], argv[1]);
667         }
668         else if (actions == ACTION_GET_REGEXP) {
669                 show_keys = 1;
670                 use_key_regexp = 1;
671                 do_all = 1;
672                 check_argc(argc, 1, 2);
673                 return get_value(argv[0], argv[1]);
674         }
675         else if (actions == ACTION_GET_URLMATCH) {
676                 check_argc(argc, 2, 2);
677                 return get_urlmatch(argv[0], argv[1]);
678         }
679         else if (actions == ACTION_UNSET) {
680                 check_write();
681                 check_argc(argc, 1, 2);
682                 if (argc == 2)
683                         return git_config_set_multivar_in_file_gently(given_config_source.file,
684                                                                       argv[0], NULL, argv[1], 0);
685                 else
686                         return git_config_set_in_file_gently(given_config_source.file,
687                                                              argv[0], NULL);
688         }
689         else if (actions == ACTION_UNSET_ALL) {
690                 check_write();
691                 check_argc(argc, 1, 2);
692                 return git_config_set_multivar_in_file_gently(given_config_source.file,
693                                                               argv[0], NULL, argv[1], 1);
694         }
695         else if (actions == ACTION_RENAME_SECTION) {
696                 int ret;
697                 check_write();
698                 check_argc(argc, 2, 2);
699                 ret = git_config_rename_section_in_file(given_config_source.file,
700                                                         argv[0], argv[1]);
701                 if (ret < 0)
702                         return ret;
703                 if (ret == 0)
704                         die("No such section!");
705         }
706         else if (actions == ACTION_REMOVE_SECTION) {
707                 int ret;
708                 check_write();
709                 check_argc(argc, 1, 1);
710                 ret = git_config_rename_section_in_file(given_config_source.file,
711                                                         argv[0], NULL);
712                 if (ret < 0)
713                         return ret;
714                 if (ret == 0)
715                         die("No such section!");
716         }
717         else if (actions == ACTION_GET_COLOR) {
718                 check_argc(argc, 1, 2);
719                 get_color(argv[0], argv[1]);
720         }
721         else if (actions == ACTION_GET_COLORBOOL) {
722                 check_argc(argc, 1, 2);
723                 if (argc == 2)
724                         color_stdout_is_tty = git_config_bool("command line", argv[1]);
725                 return get_colorbool(argv[0], argc == 2);
726         }
727
728         return 0;
729 }