Merge branch 'ks/fix-rebase-doc-picture' into maint
[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 int end_null;
29 static int respect_includes_opt = -1;
30 static struct config_options config_options;
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_opt, 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, &config_options);
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, &config_options);
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, &config_options);
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         int ret;
421         char *section_tail;
422         struct string_list_item *item;
423         struct urlmatch_config config = { STRING_LIST_INIT_DUP };
424         struct string_list values = STRING_LIST_INIT_DUP;
425
426         config.collect_fn = urlmatch_collect_fn;
427         config.cascade_fn = NULL;
428         config.cb = &values;
429
430         if (!url_normalize(url, &config.url))
431                 die("%s", config.url.err);
432
433         config.section = xstrdup_tolower(var);
434         section_tail = strchr(config.section, '.');
435         if (section_tail) {
436                 *section_tail = '\0';
437                 config.key = section_tail + 1;
438                 show_keys = 0;
439         } else {
440                 config.key = NULL;
441                 show_keys = 1;
442         }
443
444         git_config_with_options(urlmatch_config_entry, &config,
445                                 &given_config_source, &config_options);
446
447         ret = !values.nr;
448
449         for_each_string_list_item(item, &values) {
450                 struct urlmatch_current_candidate_value *matched = item->util;
451                 struct strbuf buf = STRBUF_INIT;
452
453                 format_config(&buf, item->string,
454                               matched->value_is_null ? NULL : matched->value.buf);
455                 fwrite(buf.buf, 1, buf.len, stdout);
456                 strbuf_release(&buf);
457
458                 strbuf_release(&matched->value);
459         }
460         string_list_clear(&config.vars, 1);
461         string_list_clear(&values, 1);
462         free(config.url.url);
463
464         free((void *)config.section);
465         return ret;
466 }
467
468 static char *default_user_config(void)
469 {
470         struct strbuf buf = STRBUF_INIT;
471         strbuf_addf(&buf,
472                     _("# This is Git's per-user configuration file.\n"
473                       "[user]\n"
474                       "# Please adapt and uncomment the following lines:\n"
475                       "#        name = %s\n"
476                       "#        email = %s\n"),
477                     ident_default_name(),
478                     ident_default_email());
479         return strbuf_detach(&buf, NULL);
480 }
481
482 int cmd_config(int argc, const char **argv, const char *prefix)
483 {
484         int nongit = !startup_info->have_repository;
485         char *value;
486
487         given_config_source.file = getenv(CONFIG_ENVIRONMENT);
488
489         argc = parse_options(argc, argv, prefix, builtin_config_options,
490                              builtin_config_usage,
491                              PARSE_OPT_STOP_AT_NON_OPTION);
492
493         if (use_global_config + use_system_config + use_local_config +
494             !!given_config_source.file + !!given_config_source.blob > 1) {
495                 error("only one config file at a time.");
496                 usage_with_options(builtin_config_usage, builtin_config_options);
497         }
498
499         if (use_local_config && nongit)
500                 die(_("--local can only be used inside a git repository"));
501
502         if (given_config_source.file &&
503                         !strcmp(given_config_source.file, "-")) {
504                 given_config_source.file = NULL;
505                 given_config_source.use_stdin = 1;
506         }
507
508         if (use_global_config) {
509                 char *user_config = expand_user_path("~/.gitconfig", 0);
510                 char *xdg_config = xdg_config_home("config");
511
512                 if (!user_config)
513                         /*
514                          * It is unknown if HOME/.gitconfig exists, so
515                          * we do not know if we should write to XDG
516                          * location; error out even if XDG_CONFIG_HOME
517                          * is set and points at a sane location.
518                          */
519                         die("$HOME not set");
520
521                 if (access_or_warn(user_config, R_OK, 0) &&
522                     xdg_config && !access_or_warn(xdg_config, R_OK, 0))
523                         given_config_source.file = xdg_config;
524                 else
525                         given_config_source.file = user_config;
526         }
527         else if (use_system_config)
528                 given_config_source.file = git_etc_gitconfig();
529         else if (use_local_config)
530                 given_config_source.file = git_pathdup("config");
531         else if (given_config_source.file) {
532                 if (!is_absolute_path(given_config_source.file) && prefix)
533                         given_config_source.file =
534                                 prefix_filename(prefix, given_config_source.file);
535         }
536
537         if (respect_includes_opt == -1)
538                 config_options.respect_includes = !given_config_source.file;
539         else
540                 config_options.respect_includes = respect_includes_opt;
541
542         if (end_null) {
543                 term = '\0';
544                 delim = '\n';
545                 key_delim = '\n';
546         }
547
548         if (HAS_MULTI_BITS(types)) {
549                 error("only one type at a time.");
550                 usage_with_options(builtin_config_usage, builtin_config_options);
551         }
552
553         if ((actions & (ACTION_GET_COLOR|ACTION_GET_COLORBOOL)) && types) {
554                 error("--get-color and variable type are incoherent");
555                 usage_with_options(builtin_config_usage, builtin_config_options);
556         }
557
558         if (HAS_MULTI_BITS(actions)) {
559                 error("only one action at a time.");
560                 usage_with_options(builtin_config_usage, builtin_config_options);
561         }
562         if (actions == 0)
563                 switch (argc) {
564                 case 1: actions = ACTION_GET; break;
565                 case 2: actions = ACTION_SET; break;
566                 case 3: actions = ACTION_SET_ALL; break;
567                 default:
568                         usage_with_options(builtin_config_usage, builtin_config_options);
569                 }
570         if (omit_values &&
571             !(actions == ACTION_LIST || actions == ACTION_GET_REGEXP)) {
572                 error("--name-only is only applicable to --list or --get-regexp");
573                 usage_with_options(builtin_config_usage, builtin_config_options);
574         }
575
576         if (show_origin && !(actions &
577                 (ACTION_GET|ACTION_GET_ALL|ACTION_GET_REGEXP|ACTION_LIST))) {
578                 error("--show-origin is only applicable to --get, --get-all, "
579                           "--get-regexp, and --list.");
580                 usage_with_options(builtin_config_usage, builtin_config_options);
581         }
582
583         if (actions == ACTION_LIST) {
584                 check_argc(argc, 0, 0);
585                 if (git_config_with_options(show_all_config, NULL,
586                                             &given_config_source,
587                                             &config_options) < 0) {
588                         if (given_config_source.file)
589                                 die_errno("unable to read config file '%s'",
590                                           given_config_source.file);
591                         else
592                                 die("error processing config file(s)");
593                 }
594         }
595         else if (actions == ACTION_EDIT) {
596                 char *config_file;
597
598                 check_argc(argc, 0, 0);
599                 if (!given_config_source.file && nongit)
600                         die("not in a git directory");
601                 if (given_config_source.use_stdin)
602                         die("editing stdin is not supported");
603                 if (given_config_source.blob)
604                         die("editing blobs is not supported");
605                 git_config(git_default_config, NULL);
606                 config_file = given_config_source.file ?
607                                 xstrdup(given_config_source.file) :
608                                 git_pathdup("config");
609                 if (use_global_config) {
610                         int fd = open(config_file, O_CREAT | O_EXCL | O_WRONLY, 0666);
611                         if (fd >= 0) {
612                                 char *content = default_user_config();
613                                 write_str_in_full(fd, content);
614                                 free(content);
615                                 close(fd);
616                         }
617                         else if (errno != EEXIST)
618                                 die_errno(_("cannot create configuration file %s"), config_file);
619                 }
620                 launch_editor(config_file, NULL, NULL);
621                 free(config_file);
622         }
623         else if (actions == ACTION_SET) {
624                 int ret;
625                 check_write();
626                 check_argc(argc, 2, 2);
627                 value = normalize_value(argv[0], argv[1]);
628                 ret = git_config_set_in_file_gently(given_config_source.file, argv[0], value);
629                 if (ret == CONFIG_NOTHING_SET)
630                         error(_("cannot overwrite multiple values with a single value\n"
631                         "       Use a regexp, --add or --replace-all to change %s."), argv[0]);
632                 return ret;
633         }
634         else if (actions == ACTION_SET_ALL) {
635                 check_write();
636                 check_argc(argc, 2, 3);
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, argv[2], 0);
640         }
641         else if (actions == ACTION_ADD) {
642                 check_write();
643                 check_argc(argc, 2, 2);
644                 value = normalize_value(argv[0], argv[1]);
645                 return git_config_set_multivar_in_file_gently(given_config_source.file,
646                                                               argv[0], value,
647                                                               CONFIG_REGEX_NONE, 0);
648         }
649         else if (actions == ACTION_REPLACE_ALL) {
650                 check_write();
651                 check_argc(argc, 2, 3);
652                 value = normalize_value(argv[0], argv[1]);
653                 return git_config_set_multivar_in_file_gently(given_config_source.file,
654                                                               argv[0], value, argv[2], 1);
655         }
656         else if (actions == ACTION_GET) {
657                 check_argc(argc, 1, 2);
658                 return get_value(argv[0], argv[1]);
659         }
660         else if (actions == ACTION_GET_ALL) {
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_REGEXP) {
666                 show_keys = 1;
667                 use_key_regexp = 1;
668                 do_all = 1;
669                 check_argc(argc, 1, 2);
670                 return get_value(argv[0], argv[1]);
671         }
672         else if (actions == ACTION_GET_URLMATCH) {
673                 check_argc(argc, 2, 2);
674                 return get_urlmatch(argv[0], argv[1]);
675         }
676         else if (actions == ACTION_UNSET) {
677                 check_write();
678                 check_argc(argc, 1, 2);
679                 if (argc == 2)
680                         return git_config_set_multivar_in_file_gently(given_config_source.file,
681                                                                       argv[0], NULL, argv[1], 0);
682                 else
683                         return git_config_set_in_file_gently(given_config_source.file,
684                                                              argv[0], NULL);
685         }
686         else if (actions == ACTION_UNSET_ALL) {
687                 check_write();
688                 check_argc(argc, 1, 2);
689                 return git_config_set_multivar_in_file_gently(given_config_source.file,
690                                                               argv[0], NULL, argv[1], 1);
691         }
692         else if (actions == ACTION_RENAME_SECTION) {
693                 int ret;
694                 check_write();
695                 check_argc(argc, 2, 2);
696                 ret = git_config_rename_section_in_file(given_config_source.file,
697                                                         argv[0], argv[1]);
698                 if (ret < 0)
699                         return ret;
700                 if (ret == 0)
701                         die("No such section!");
702         }
703         else if (actions == ACTION_REMOVE_SECTION) {
704                 int ret;
705                 check_write();
706                 check_argc(argc, 1, 1);
707                 ret = git_config_rename_section_in_file(given_config_source.file,
708                                                         argv[0], NULL);
709                 if (ret < 0)
710                         return ret;
711                 if (ret == 0)
712                         die("No such section!");
713         }
714         else if (actions == ACTION_GET_COLOR) {
715                 check_argc(argc, 1, 2);
716                 get_color(argv[0], argv[1]);
717         }
718         else if (actions == ACTION_GET_COLORBOOL) {
719                 check_argc(argc, 1, 2);
720                 if (argc == 2)
721                         color_stdout_is_tty = git_config_bool("command line", argv[1]);
722                 return get_colorbool(argv[0], argc == 2);
723         }
724
725         return 0;
726 }