04befce5b7609f5962ab250dfdac9b63d360cc7b
1#include "builtin.h"
2#include "cache.h"
3#include "color.h"
4#include "parse-options.h"
5#include "urlmatch.h"
6static const char *const builtin_config_usage[] = {
8 N_("git config [<options>]"),
9 NULL
10};
11static char *key;
13static regex_t *key_regexp;
14static regex_t *regexp;
15static int show_keys;
16static int omit_values;
17static int use_key_regexp;
18static int do_all;
19static int do_not_match;
20static char delim = '=';
21static char key_delim = ' ';
22static char term = '\n';
23static int use_global_config, use_system_config, use_local_config;
25static struct git_config_source given_config_source;
26static int actions, types;
27static const char *get_color_slot, *get_colorbool_slot;
28static int end_null;
29static int respect_includes = -1;
30#define ACTION_GET (1<<0)
32#define ACTION_GET_ALL (1<<1)
33#define ACTION_GET_REGEXP (1<<2)
34#define ACTION_REPLACE_ALL (1<<3)
35#define ACTION_ADD (1<<4)
36#define ACTION_UNSET (1<<5)
37#define ACTION_UNSET_ALL (1<<6)
38#define ACTION_RENAME_SECTION (1<<7)
39#define ACTION_REMOVE_SECTION (1<<8)
40#define ACTION_LIST (1<<9)
41#define ACTION_EDIT (1<<10)
42#define ACTION_SET (1<<11)
43#define ACTION_SET_ALL (1<<12)
44#define ACTION_GET_COLOR (1<<13)
45#define ACTION_GET_COLORBOOL (1<<14)
46#define ACTION_GET_URLMATCH (1<<15)
47#define TYPE_BOOL (1<<0)
49#define TYPE_INT (1<<1)
50#define TYPE_BOOL_OR_INT (1<<2)
51#define TYPE_PATH (1<<3)
52static struct option builtin_config_options[] = {
54 OPT_GROUP(N_("Config file location")),
55 OPT_BOOL(0, "global", &use_global_config, N_("use global config file")),
56 OPT_BOOL(0, "system", &use_system_config, N_("use system config file")),
57 OPT_BOOL(0, "local", &use_local_config, N_("use repository config file")),
58 OPT_STRING('f', "file", &given_config_source.file, N_("file"), N_("use given config file")),
59 OPT_STRING(0, "blob", &given_config_source.blob, N_("blob-id"), N_("read config from given blob object")),
60 OPT_GROUP(N_("Action")),
61 OPT_BIT(0, "get", &actions, N_("get value: name [value-regex]"), ACTION_GET),
62 OPT_BIT(0, "get-all", &actions, N_("get all values: key [value-regex]"), ACTION_GET_ALL),
63 OPT_BIT(0, "get-regexp", &actions, N_("get values for regexp: name-regex [value-regex]"), ACTION_GET_REGEXP),
64 OPT_BIT(0, "get-urlmatch", &actions, N_("get value specific for the URL: section[.var] URL"), ACTION_GET_URLMATCH),
65 OPT_BIT(0, "replace-all", &actions, N_("replace all matching variables: name value [value_regex]"), ACTION_REPLACE_ALL),
66 OPT_BIT(0, "add", &actions, N_("add a new variable: name value"), ACTION_ADD),
67 OPT_BIT(0, "unset", &actions, N_("remove a variable: name [value-regex]"), ACTION_UNSET),
68 OPT_BIT(0, "unset-all", &actions, N_("remove all matches: name [value-regex]"), ACTION_UNSET_ALL),
69 OPT_BIT(0, "rename-section", &actions, N_("rename section: old-name new-name"), ACTION_RENAME_SECTION),
70 OPT_BIT(0, "remove-section", &actions, N_("remove a section: name"), ACTION_REMOVE_SECTION),
71 OPT_BIT('l', "list", &actions, N_("list all"), ACTION_LIST),
72 OPT_BIT('e', "edit", &actions, N_("open an editor"), ACTION_EDIT),
73 OPT_BIT(0, "get-color", &actions, N_("find the color configured: slot [default]"), ACTION_GET_COLOR),
74 OPT_BIT(0, "get-colorbool", &actions, N_("find the color setting: slot [stdout-is-tty]"), ACTION_GET_COLORBOOL),
75 OPT_GROUP(N_("Type")),
76 OPT_BIT(0, "bool", &types, N_("value is \"true\" or \"false\""), TYPE_BOOL),
77 OPT_BIT(0, "int", &types, N_("value is decimal number"), TYPE_INT),
78 OPT_BIT(0, "bool-or-int", &types, N_("value is --bool or --int"), TYPE_BOOL_OR_INT),
79 OPT_BIT(0, "path", &types, N_("value is a path (file or directory name)"), TYPE_PATH),
80 OPT_GROUP(N_("Other")),
81 OPT_BOOL('z', "null", &end_null, N_("terminate values with NUL byte")),
82 OPT_BOOL(0, "name-only", &omit_values, N_("show variable names only")),
83 OPT_BOOL(0, "includes", &respect_includes, N_("respect include directives on lookup")),
84 OPT_END(),
85};
86static void check_argc(int argc, int min, int max) {
88 if (argc >= min && argc <= max)
89 return;
90 error("wrong number of arguments");
91 usage_with_options(builtin_config_usage, builtin_config_options);
92}
93static int show_all_config(const char *key_, const char *value_, void *cb)
95{
96 if (!omit_values && value_)
97 printf("%s%c%s%c", key_, delim, value_, term);
98 else
99 printf("%s%c", key_, term);
100 return 0;
101}
102struct strbuf_list {
104 struct strbuf *items;
105 int nr;
106 int alloc;
107};
108static int format_config(struct strbuf *buf, const char *key_, const char *value_)
110{
111 if (show_keys)
112 strbuf_addstr(buf, key_);
113 if (!omit_values) {
114 if (show_keys)
115 strbuf_addch(buf, key_delim);
116 if (types == TYPE_INT)
118 strbuf_addf(buf, "%"PRId64,
119 git_config_int64(key_, value_ ? value_ : ""));
120 else if (types == TYPE_BOOL)
121 strbuf_addstr(buf, git_config_bool(key_, value_) ?
122 "true" : "false");
123 else if (types == TYPE_BOOL_OR_INT) {
124 int is_bool, v;
125 v = git_config_bool_or_int(key_, value_, &is_bool);
126 if (is_bool)
127 strbuf_addstr(buf, v ? "true" : "false");
128 else
129 strbuf_addf(buf, "%d", v);
130 } else if (types == TYPE_PATH) {
131 const char *v;
132 if (git_config_pathname(&v, key_, value_) < 0)
133 return -1;
134 strbuf_addstr(buf, v);
135 free((char *)v);
136 } else if (value_) {
137 strbuf_addstr(buf, value_);
138 } else {
139 /* Just show the key name; back out delimiter */
140 if (show_keys)
141 strbuf_setlen(buf, buf->len - 1);
142 }
143 }
144 strbuf_addch(buf, term);
145 return 0;
146}
147static int collect_config(const char *key_, const char *value_, void *cb)
149{
150 struct strbuf_list *values = cb;
151 if (!use_key_regexp && strcmp(key_, key))
153 return 0;
154 if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
155 return 0;
156 if (regexp != NULL &&
157 (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
158 return 0;
159 ALLOC_GROW(values->items, values->nr + 1, values->alloc);
161 strbuf_init(&values->items[values->nr], 0);
162 return format_config(&values->items[values->nr++], key_, value_);
164}
165static int get_value(const char *key_, const char *regex_)
167{
168 int ret = CONFIG_GENERIC_ERROR;
169 struct strbuf_list values = {NULL};
170 int i;
171 if (use_key_regexp) {
173 char *tl;
174 /*
176 * NEEDSWORK: this naive pattern lowercasing obviously does not
177 * work for more complex patterns like "^[^.]*Foo.*bar".
178 * Perhaps we should deprecate this altogether someday.
179 */
180 key = xstrdup(key_);
182 for (tl = key + strlen(key) - 1;
183 tl >= key && *tl != '.';
184 tl--)
185 *tl = tolower(*tl);
186 for (tl = key; *tl && *tl != '.'; tl++)
187 *tl = tolower(*tl);
188 key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
190 if (regcomp(key_regexp, key, REG_EXTENDED)) {
191 error("invalid key pattern: %s", key_);
192 free(key_regexp);
193 key_regexp = NULL;
194 ret = CONFIG_INVALID_PATTERN;
195 goto free_strings;
196 }
197 } else {
198 if (git_config_parse_key(key_, &key, NULL)) {
199 ret = CONFIG_INVALID_KEY;
200 goto free_strings;
201 }
202 }
203 if (regex_) {
205 if (regex_[0] == '!') {
206 do_not_match = 1;
207 regex_++;
208 }
209 regexp = (regex_t*)xmalloc(sizeof(regex_t));
211 if (regcomp(regexp, regex_, REG_EXTENDED)) {
212 error("invalid pattern: %s", regex_);
213 free(regexp);
214 regexp = NULL;
215 ret = CONFIG_INVALID_PATTERN;
216 goto free_strings;
217 }
218 }
219 git_config_with_options(collect_config, &values,
221 &given_config_source, respect_includes);
222 ret = !values.nr;
224 for (i = 0; i < values.nr; i++) {
226 struct strbuf *buf = values.items + i;
227 if (do_all || i == values.nr - 1)
228 fwrite(buf->buf, 1, buf->len, stdout);
229 strbuf_release(buf);
230 }
231 free(values.items);
232free_strings:
234 free(key);
235 if (key_regexp) {
236 regfree(key_regexp);
237 free(key_regexp);
238 }
239 if (regexp) {
240 regfree(regexp);
241 free(regexp);
242 }
243 return ret;
245}
246static char *normalize_value(const char *key, const char *value)
248{
249 char *normalized;
250 if (!value)
252 return NULL;
253 if (types == 0 || types == TYPE_PATH)
255 /*
256 * We don't do normalization for TYPE_PATH here: If
257 * the path is like ~/foobar/, we prefer to store
258 * "~/foobar/" in the config file, and to expand the ~
259 * when retrieving the value.
260 */
261 normalized = xstrdup(value);
262 else {
263 normalized = xmalloc(64);
264 if (types == TYPE_INT) {
265 int64_t v = git_config_int64(key, value);
266 sprintf(normalized, "%"PRId64, v);
267 }
268 else if (types == TYPE_BOOL)
269 sprintf(normalized, "%s",
270 git_config_bool(key, value) ? "true" : "false");
271 else if (types == TYPE_BOOL_OR_INT) {
272 int is_bool, v;
273 v = git_config_bool_or_int(key, value, &is_bool);
274 if (!is_bool)
275 sprintf(normalized, "%d", v);
276 else
277 sprintf(normalized, "%s", v ? "true" : "false");
278 }
279 }
280 return normalized;
282}
283static int get_color_found;
285static const char *get_color_slot;
286static const char *get_colorbool_slot;
287static char parsed_color[COLOR_MAXLEN];
288static int git_get_color_config(const char *var, const char *value, void *cb)
290{
291 if (!strcmp(var, get_color_slot)) {
292 if (!value)
293 config_error_nonbool(var);
294 if (color_parse(value, parsed_color) < 0)
295 return -1;
296 get_color_found = 1;
297 }
298 return 0;
299}
300static void get_color(const char *var, const char *def_color)
302{
303 get_color_slot = var;
304 get_color_found = 0;
305 parsed_color[0] = '\0';
306 git_config_with_options(git_get_color_config, NULL,
307 &given_config_source, respect_includes);
308 if (!get_color_found && def_color) {
310 if (color_parse(def_color, parsed_color) < 0)
311 die(_("unable to parse default color value"));
312 }
313 fputs(parsed_color, stdout);
315}
316static int get_colorbool_found;
318static int get_diff_color_found;
319static int get_color_ui_found;
320static int git_get_colorbool_config(const char *var, const char *value,
321 void *cb)
322{
323 if (!strcmp(var, get_colorbool_slot))
324 get_colorbool_found = git_config_colorbool(var, value);
325 else if (!strcmp(var, "diff.color"))
326 get_diff_color_found = git_config_colorbool(var, value);
327 else if (!strcmp(var, "color.ui"))
328 get_color_ui_found = git_config_colorbool(var, value);
329 return 0;
330}
331static int get_colorbool(const char *var, int print)
333{
334 get_colorbool_slot = var;
335 get_colorbool_found = -1;
336 get_diff_color_found = -1;
337 get_color_ui_found = -1;
338 git_config_with_options(git_get_colorbool_config, NULL,
339 &given_config_source, respect_includes);
340 if (get_colorbool_found < 0) {
342 if (!strcmp(get_colorbool_slot, "color.diff"))
343 get_colorbool_found = get_diff_color_found;
344 if (get_colorbool_found < 0)
345 get_colorbool_found = get_color_ui_found;
346 }
347 if (get_colorbool_found < 0)
349 /* default value if none found in config */
350 get_colorbool_found = GIT_COLOR_AUTO;
351 get_colorbool_found = want_color(get_colorbool_found);
353 if (print) {
355 printf("%s\n", get_colorbool_found ? "true" : "false");
356 return 0;
357 } else
358 return get_colorbool_found ? 0 : 1;
359}
360static void check_write(void)
362{
363 if (given_config_source.use_stdin)
364 die("writing to stdin is not supported");
365 if (given_config_source.blob)
367 die("writing config blobs is not supported");
368}
369struct urlmatch_current_candidate_value {
371 char value_is_null;
372 struct strbuf value;
373};
374static int urlmatch_collect_fn(const char *var, const char *value, void *cb)
376{
377 struct string_list *values = cb;
378 struct string_list_item *item = string_list_insert(values, var);
379 struct urlmatch_current_candidate_value *matched = item->util;
380 if (!matched) {
382 matched = xmalloc(sizeof(*matched));
383 strbuf_init(&matched->value, 0);
384 item->util = matched;
385 } else {
386 strbuf_reset(&matched->value);
387 }
388 if (value) {
390 strbuf_addstr(&matched->value, value);
391 matched->value_is_null = 0;
392 } else {
393 matched->value_is_null = 1;
394 }
395 return 0;
396}
397static int get_urlmatch(const char *var, const char *url)
399{
400 char *section_tail;
401 struct string_list_item *item;
402 struct urlmatch_config config = { STRING_LIST_INIT_DUP };
403 struct string_list values = STRING_LIST_INIT_DUP;
404 config.collect_fn = urlmatch_collect_fn;
406 config.cascade_fn = NULL;
407 config.cb = &values;
408 if (!url_normalize(url, &config.url))
410 die("%s", config.url.err);
411 config.section = xstrdup_tolower(var);
413 section_tail = strchr(config.section, '.');
414 if (section_tail) {
415 *section_tail = '\0';
416 config.key = section_tail + 1;
417 show_keys = 0;
418 } else {
419 config.key = NULL;
420 show_keys = 1;
421 }
422 git_config_with_options(urlmatch_config_entry, &config,
424 &given_config_source, respect_includes);
425 for_each_string_list_item(item, &values) {
427 struct urlmatch_current_candidate_value *matched = item->util;
428 struct strbuf key = STRBUF_INIT;
429 struct strbuf buf = STRBUF_INIT;
430 strbuf_addstr(&key, item->string);
432 format_config(&buf, key.buf,
433 matched->value_is_null ? NULL : matched->value.buf);
434 fwrite(buf.buf, 1, buf.len, stdout);
435 strbuf_release(&key);
436 strbuf_release(&buf);
437 strbuf_release(&matched->value);
439 }
440 string_list_clear(&config.vars, 1);
441 string_list_clear(&values, 1);
442 free(config.url.url);
443 free((void *)config.section);
445 return 0;
446}
447static char *default_user_config(void)
449{
450 struct strbuf buf = STRBUF_INIT;
451 strbuf_addf(&buf,
452 _("# This is Git's per-user configuration file.\n"
453 "[user]\n"
454 "# Please adapt and uncomment the following lines:\n"
455 "# name = %s\n"
456 "# email = %s\n"),
457 ident_default_name(),
458 ident_default_email());
459 return strbuf_detach(&buf, NULL);
460}
461int cmd_config(int argc, const char **argv, const char *prefix)
463{
464 int nongit = !startup_info->have_repository;
465 char *value;
466 given_config_source.file = getenv(CONFIG_ENVIRONMENT);
468 argc = parse_options(argc, argv, prefix, builtin_config_options,
470 builtin_config_usage,
471 PARSE_OPT_STOP_AT_NON_OPTION);
472 if (use_global_config + use_system_config + use_local_config +
474 !!given_config_source.file + !!given_config_source.blob > 1) {
475 error("only one config file at a time.");
476 usage_with_options(builtin_config_usage, builtin_config_options);
477 }
478 if (given_config_source.file &&
480 !strcmp(given_config_source.file, "-")) {
481 given_config_source.file = NULL;
482 given_config_source.use_stdin = 1;
483 }
484 if (use_global_config) {
486 char *user_config = expand_user_path("~/.gitconfig");
487 char *xdg_config = xdg_config_home("config");
488 if (!user_config)
490 /*
491 * It is unknown if HOME/.gitconfig exists, so
492 * we do not know if we should write to XDG
493 * location; error out even if XDG_CONFIG_HOME
494 * is set and points at a sane location.
495 */
496 die("$HOME not set");
497 if (access_or_warn(user_config, R_OK, 0) &&
499 xdg_config && !access_or_warn(xdg_config, R_OK, 0))
500 given_config_source.file = xdg_config;
501 else
502 given_config_source.file = user_config;
503 }
504 else if (use_system_config)
505 given_config_source.file = git_etc_gitconfig();
506 else if (use_local_config)
507 given_config_source.file = git_pathdup("config");
508 else if (given_config_source.file) {
509 if (!is_absolute_path(given_config_source.file) && prefix)
510 given_config_source.file =
511 xstrdup(prefix_filename(prefix,
512 strlen(prefix),
513 given_config_source.file));
514 }
515 if (respect_includes == -1)
517 respect_includes = !given_config_source.file;
518 if (end_null) {
520 term = '\0';
521 delim = '\n';
522 key_delim = '\n';
523 }
524 if (HAS_MULTI_BITS(types)) {
526 error("only one type at a time.");
527 usage_with_options(builtin_config_usage, builtin_config_options);
528 }
529 if ((actions & (ACTION_GET_COLOR|ACTION_GET_COLORBOOL)) && types) {
531 error("--get-color and variable type are incoherent");
532 usage_with_options(builtin_config_usage, builtin_config_options);
533 }
534 if (HAS_MULTI_BITS(actions)) {
536 error("only one action at a time.");
537 usage_with_options(builtin_config_usage, builtin_config_options);
538 }
539 if (actions == 0)
540 switch (argc) {
541 case 1: actions = ACTION_GET; break;
542 case 2: actions = ACTION_SET; break;
543 case 3: actions = ACTION_SET_ALL; break;
544 default:
545 usage_with_options(builtin_config_usage, builtin_config_options);
546 }
547 if (omit_values &&
548 !(actions == ACTION_LIST || actions == ACTION_GET_REGEXP)) {
549 error("--name-only is only applicable to --list or --get-regexp");
550 usage_with_options(builtin_config_usage, builtin_config_options);
551 }
552 if (actions == ACTION_LIST) {
553 check_argc(argc, 0, 0);
554 if (git_config_with_options(show_all_config, NULL,
555 &given_config_source,
556 respect_includes) < 0) {
557 if (given_config_source.file)
558 die_errno("unable to read config file '%s'",
559 given_config_source.file);
560 else
561 die("error processing config file(s)");
562 }
563 }
564 else if (actions == ACTION_EDIT) {
565 char *config_file;
566 check_argc(argc, 0, 0);
568 if (!given_config_source.file && nongit)
569 die("not in a git directory");
570 if (given_config_source.use_stdin)
571 die("editing stdin is not supported");
572 if (given_config_source.blob)
573 die("editing blobs is not supported");
574 git_config(git_default_config, NULL);
575 config_file = xstrdup(given_config_source.file ?
576 given_config_source.file : git_path("config"));
577 if (use_global_config) {
578 int fd = open(config_file, O_CREAT | O_EXCL | O_WRONLY, 0666);
579 if (fd) {
580 char *content = default_user_config();
581 write_str_in_full(fd, content);
582 free(content);
583 close(fd);
584 }
585 else if (errno != EEXIST)
586 die_errno(_("cannot create configuration file %s"), config_file);
587 }
588 launch_editor(config_file, NULL, NULL);
589 free(config_file);
590 }
591 else if (actions == ACTION_SET) {
592 int ret;
593 check_write();
594 check_argc(argc, 2, 2);
595 value = normalize_value(argv[0], argv[1]);
596 ret = git_config_set_in_file(given_config_source.file, argv[0], value);
597 if (ret == CONFIG_NOTHING_SET)
598 error("cannot overwrite multiple values with a single value\n"
599 " Use a regexp, --add or --replace-all to change %s.", argv[0]);
600 return ret;
601 }
602 else if (actions == ACTION_SET_ALL) {
603 check_write();
604 check_argc(argc, 2, 3);
605 value = normalize_value(argv[0], argv[1]);
606 return git_config_set_multivar_in_file(given_config_source.file,
607 argv[0], value, argv[2], 0);
608 }
609 else if (actions == ACTION_ADD) {
610 check_write();
611 check_argc(argc, 2, 2);
612 value = normalize_value(argv[0], argv[1]);
613 return git_config_set_multivar_in_file(given_config_source.file,
614 argv[0], value,
615 CONFIG_REGEX_NONE, 0);
616 }
617 else if (actions == ACTION_REPLACE_ALL) {
618 check_write();
619 check_argc(argc, 2, 3);
620 value = normalize_value(argv[0], argv[1]);
621 return git_config_set_multivar_in_file(given_config_source.file,
622 argv[0], value, argv[2], 1);
623 }
624 else if (actions == ACTION_GET) {
625 check_argc(argc, 1, 2);
626 return get_value(argv[0], argv[1]);
627 }
628 else if (actions == ACTION_GET_ALL) {
629 do_all = 1;
630 check_argc(argc, 1, 2);
631 return get_value(argv[0], argv[1]);
632 }
633 else if (actions == ACTION_GET_REGEXP) {
634 show_keys = 1;
635 use_key_regexp = 1;
636 do_all = 1;
637 check_argc(argc, 1, 2);
638 return get_value(argv[0], argv[1]);
639 }
640 else if (actions == ACTION_GET_URLMATCH) {
641 check_argc(argc, 2, 2);
642 return get_urlmatch(argv[0], argv[1]);
643 }
644 else if (actions == ACTION_UNSET) {
645 check_write();
646 check_argc(argc, 1, 2);
647 if (argc == 2)
648 return git_config_set_multivar_in_file(given_config_source.file,
649 argv[0], NULL, argv[1], 0);
650 else
651 return git_config_set_in_file(given_config_source.file,
652 argv[0], NULL);
653 }
654 else if (actions == ACTION_UNSET_ALL) {
655 check_write();
656 check_argc(argc, 1, 2);
657 return git_config_set_multivar_in_file(given_config_source.file,
658 argv[0], NULL, argv[1], 1);
659 }
660 else if (actions == ACTION_RENAME_SECTION) {
661 int ret;
662 check_write();
663 check_argc(argc, 2, 2);
664 ret = git_config_rename_section_in_file(given_config_source.file,
665 argv[0], argv[1]);
666 if (ret < 0)
667 return ret;
668 if (ret == 0)
669 die("No such section!");
670 }
671 else if (actions == ACTION_REMOVE_SECTION) {
672 int ret;
673 check_write();
674 check_argc(argc, 1, 1);
675 ret = git_config_rename_section_in_file(given_config_source.file,
676 argv[0], NULL);
677 if (ret < 0)
678 return ret;
679 if (ret == 0)
680 die("No such section!");
681 }
682 else if (actions == ACTION_GET_COLOR) {
683 check_argc(argc, 1, 2);
684 get_color(argv[0], argv[1]);
685 }
686 else if (actions == ACTION_GET_COLORBOOL) {
687 check_argc(argc, 1, 2);
688 if (argc == 2)
689 color_stdout_is_tty = git_config_bool("command line", argv[1]);
690 return get_colorbool(argv[0], argc == 2);
691 }
692 return 0;
694}