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