1#include "builtin.h"
2#include "cache.h"
3#include "color.h"
4#include "parse-options.h"
5static const char *const builtin_config_usage[] = {
7 N_("git config [options]"),
8 NULL
9};
10static char *key;
12static regex_t *key_regexp;
13static regex_t *regexp;
14static int show_keys;
15static int use_key_regexp;
16static int do_all;
17static int do_not_match;
18static int seen;
19static char delim = '=';
20static char key_delim = ' ';
21static char term = '\n';
22static int use_global_config, use_system_config, use_local_config;
24static const char *given_config_file;
25static int actions, types;
26static const char *get_color_slot, *get_colorbool_slot;
27static int end_null;
28static int respect_includes = -1;
29#define ACTION_GET (1<<0)
31#define ACTION_GET_ALL (1<<1)
32#define ACTION_GET_REGEXP (1<<2)
33#define ACTION_REPLACE_ALL (1<<3)
34#define ACTION_ADD (1<<4)
35#define ACTION_UNSET (1<<5)
36#define ACTION_UNSET_ALL (1<<6)
37#define ACTION_RENAME_SECTION (1<<7)
38#define ACTION_REMOVE_SECTION (1<<8)
39#define ACTION_LIST (1<<9)
40#define ACTION_EDIT (1<<10)
41#define ACTION_SET (1<<11)
42#define ACTION_SET_ALL (1<<12)
43#define ACTION_GET_COLOR (1<<13)
44#define ACTION_GET_COLORBOOL (1<<14)
45#define TYPE_BOOL (1<<0)
47#define TYPE_INT (1<<1)
48#define TYPE_BOOL_OR_INT (1<<2)
49#define TYPE_PATH (1<<3)
50static struct option builtin_config_options[] = {
52 OPT_GROUP(N_("Config file location")),
53 OPT_BOOLEAN(0, "global", &use_global_config, N_("use global config file")),
54 OPT_BOOLEAN(0, "system", &use_system_config, N_("use system config file")),
55 OPT_BOOLEAN(0, "local", &use_local_config, N_("use repository config file")),
56 OPT_STRING('f', "file", &given_config_file, N_("file"), N_("use given config file")),
57 OPT_GROUP(N_("Action")),
58 OPT_BIT(0, "get", &actions, N_("get value: name [value-regex]"), ACTION_GET),
59 OPT_BIT(0, "get-all", &actions, N_("get all values: key [value-regex]"), ACTION_GET_ALL),
60 OPT_BIT(0, "get-regexp", &actions, N_("get values for regexp: name-regex [value-regex]"), ACTION_GET_REGEXP),
61 OPT_BIT(0, "replace-all", &actions, N_("replace all matching variables: name value [value_regex]"), ACTION_REPLACE_ALL),
62 OPT_BIT(0, "add", &actions, N_("add a new variable: name value"), ACTION_ADD),
63 OPT_BIT(0, "unset", &actions, N_("remove a variable: name [value-regex]"), ACTION_UNSET),
64 OPT_BIT(0, "unset-all", &actions, N_("remove all matches: name [value-regex]"), ACTION_UNSET_ALL),
65 OPT_BIT(0, "rename-section", &actions, N_("rename section: old-name new-name"), ACTION_RENAME_SECTION),
66 OPT_BIT(0, "remove-section", &actions, N_("remove a section: name"), ACTION_REMOVE_SECTION),
67 OPT_BIT('l', "list", &actions, N_("list all"), ACTION_LIST),
68 OPT_BIT('e', "edit", &actions, N_("open an editor"), ACTION_EDIT),
69 OPT_STRING(0, "get-color", &get_color_slot, N_("slot"), N_("find the color configured: [default]")),
70 OPT_STRING(0, "get-colorbool", &get_colorbool_slot, N_("slot"), N_("find the color setting: [stdout-is-tty]")),
71 OPT_GROUP(N_("Type")),
72 OPT_BIT(0, "bool", &types, N_("value is \"true\" or \"false\""), TYPE_BOOL),
73 OPT_BIT(0, "int", &types, N_("value is decimal number"), TYPE_INT),
74 OPT_BIT(0, "bool-or-int", &types, N_("value is --bool or --int"), TYPE_BOOL_OR_INT),
75 OPT_BIT(0, "path", &types, N_("value is a path (file or directory name)"), TYPE_PATH),
76 OPT_GROUP(N_("Other")),
77 OPT_BOOLEAN('z', "null", &end_null, N_("terminate values with NUL byte")),
78 OPT_BOOL(0, "includes", &respect_includes, N_("respect include directives on lookup")),
79 OPT_END(),
80};
81static void check_argc(int argc, int min, int max) {
83 if (argc >= min && argc <= max)
84 return;
85 error("wrong number of arguments");
86 usage_with_options(builtin_config_usage, builtin_config_options);
87}
88static int show_all_config(const char *key_, const char *value_, void *cb)
90{
91 if (value_)
92 printf("%s%c%s%c", key_, delim, value_, term);
93 else
94 printf("%s%c", key_, term);
95 return 0;
96}
97static int show_config(const char *key_, const char *value_, void *cb)
99{
100 char value[256];
101 const char *vptr = value;
102 int must_free_vptr = 0;
103 int dup_error = 0;
104 int must_print_delim = 0;
105 if (!use_key_regexp && strcmp(key_, key))
107 return 0;
108 if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
109 return 0;
110 if (regexp != NULL &&
111 (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
112 return 0;
113 if (show_keys) {
115 printf("%s", key_);
116 must_print_delim = 1;
117 }
118 if (seen && !do_all)
119 dup_error = 1;
120 if (types == TYPE_INT)
121 sprintf(value, "%d", git_config_int(key_, value_?value_:""));
122 else if (types == TYPE_BOOL)
123 vptr = git_config_bool(key_, value_) ? "true" : "false";
124 else if (types == TYPE_BOOL_OR_INT) {
125 int is_bool, v;
126 v = git_config_bool_or_int(key_, value_, &is_bool);
127 if (is_bool)
128 vptr = v ? "true" : "false";
129 else
130 sprintf(value, "%d", v);
131 } else if (types == TYPE_PATH) {
132 if (git_config_pathname(&vptr, key_, value_) < 0)
133 return -1;
134 must_free_vptr = 1;
135 } else if (value_) {
136 vptr = value_;
137 } else {
138 /* Just show the key name */
139 vptr = "";
140 must_print_delim = 0;
141 }
142 seen++;
143 if (dup_error) {
144 error("More than one value for the key %s: %s",
145 key_, vptr);
146 }
147 else {
148 if (must_print_delim)
149 printf("%c", key_delim);
150 printf("%s%c", vptr, term);
151 }
152 if (must_free_vptr)
153 /* If vptr must be freed, it's a pointer to a
154 * dynamically allocated buffer, it's safe to cast to
155 * const.
156 */
157 free((char *)vptr);
158 return 0;
160}
161static int get_value(const char *key_, const char *regex_)
163{
164 int ret = CONFIG_GENERIC_ERROR;
165 char *global = NULL, *xdg = NULL, *repo_config = NULL;
166 const char *system_wide = NULL, *local;
167 struct config_include_data inc = CONFIG_INCLUDE_INIT;
168 config_fn_t fn;
169 void *data;
170 local = given_config_file;
172 if (!local) {
173 local = repo_config = git_pathdup("config");
174 if (git_config_system())
175 system_wide = git_etc_gitconfig();
176 home_config_paths(&global, &xdg, "config");
177 }
178 if (use_key_regexp) {
180 char *tl;
181 /*
183 * NEEDSWORK: this naive pattern lowercasing obviously does not
184 * work for more complex patterns like "^[^.]*Foo.*bar".
185 * Perhaps we should deprecate this altogether someday.
186 */
187 key = xstrdup(key_);
189 for (tl = key + strlen(key) - 1;
190 tl >= key && *tl != '.';
191 tl--)
192 *tl = tolower(*tl);
193 for (tl = key; *tl && *tl != '.'; tl++)
194 *tl = tolower(*tl);
195 key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
197 if (regcomp(key_regexp, key, REG_EXTENDED)) {
198 fprintf(stderr, "Invalid key pattern: %s\n", key_);
199 free(key);
200 ret = CONFIG_INVALID_PATTERN;
201 goto free_strings;
202 }
203 } else {
204 if (git_config_parse_key(key_, &key, NULL)) {
205 ret = CONFIG_INVALID_KEY;
206 goto free_strings;
207 }
208 }
209 if (regex_) {
211 if (regex_[0] == '!') {
212 do_not_match = 1;
213 regex_++;
214 }
215 regexp = (regex_t*)xmalloc(sizeof(regex_t));
217 if (regcomp(regexp, regex_, REG_EXTENDED)) {
218 fprintf(stderr, "Invalid pattern: %s\n", regex_);
219 ret = CONFIG_INVALID_PATTERN;
220 goto free_strings;
221 }
222 }
223 fn = show_config;
225 data = NULL;
226 if (respect_includes) {
227 inc.fn = fn;
228 inc.data = data;
229 fn = git_config_include;
230 data = &inc;
231 }
232 if (do_all && system_wide)
234 git_config_from_file(fn, system_wide, data);
235 if (do_all && xdg)
236 git_config_from_file(fn, xdg, data);
237 if (do_all && global)
238 git_config_from_file(fn, global, data);
239 if (do_all)
240 git_config_from_file(fn, local, data);
241 git_config_from_parameters(fn, data);
242 if (!do_all && !seen)
243 git_config_from_file(fn, local, data);
244 if (!do_all && !seen && global)
245 git_config_from_file(fn, global, data);
246 if (!do_all && !seen && xdg)
247 git_config_from_file(fn, xdg, data);
248 if (!do_all && !seen && system_wide)
249 git_config_from_file(fn, system_wide, data);
250 free(key);
252 if (regexp) {
253 regfree(regexp);
254 free(regexp);
255 }
256 if (do_all)
258 ret = !seen;
259 else
260 ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
261free_strings:
263 free(repo_config);
264 free(global);
265 free(xdg);
266 return ret;
267}
268static char *normalize_value(const char *key, const char *value)
270{
271 char *normalized;
272 if (!value)
274 return NULL;
275 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 normalized = xstrdup(value);
284 else {
285 normalized = xmalloc(64);
286 if (types == TYPE_INT) {
287 int v = git_config_int(key, value);
288 sprintf(normalized, "%d", v);
289 }
290 else if (types == TYPE_BOOL)
291 sprintf(normalized, "%s",
292 git_config_bool(key, value) ? "true" : "false");
293 else if (types == TYPE_BOOL_OR_INT) {
294 int is_bool, v;
295 v = git_config_bool_or_int(key, value, &is_bool);
296 if (!is_bool)
297 sprintf(normalized, "%d", v);
298 else
299 sprintf(normalized, "%s", v ? "true" : "false");
300 }
301 }
302 return normalized;
304}
305static int get_color_found;
307static const char *get_color_slot;
308static const char *get_colorbool_slot;
309static char parsed_color[COLOR_MAXLEN];
310static int git_get_color_config(const char *var, const char *value, void *cb)
312{
313 if (!strcmp(var, get_color_slot)) {
314 if (!value)
315 config_error_nonbool(var);
316 color_parse(value, var, parsed_color);
317 get_color_found = 1;
318 }
319 return 0;
320}
321static void get_color(const char *def_color)
323{
324 get_color_found = 0;
325 parsed_color[0] = '\0';
326 git_config_with_options(git_get_color_config, NULL,
327 given_config_file, respect_includes);
328 if (!get_color_found && def_color)
330 color_parse(def_color, "command line", parsed_color);
331 fputs(parsed_color, stdout);
333}
334static int get_colorbool_found;
336static int get_diff_color_found;
337static int get_color_ui_found;
338static int git_get_colorbool_config(const char *var, const char *value,
339 void *cb)
340{
341 if (!strcmp(var, get_colorbool_slot))
342 get_colorbool_found = git_config_colorbool(var, value);
343 else if (!strcmp(var, "diff.color"))
344 get_diff_color_found = git_config_colorbool(var, value);
345 else if (!strcmp(var, "color.ui"))
346 get_color_ui_found = git_config_colorbool(var, value);
347 return 0;
348}
349static int get_colorbool(int print)
351{
352 get_colorbool_found = -1;
353 get_diff_color_found = -1;
354 git_config_with_options(git_get_colorbool_config, NULL,
355 given_config_file, respect_includes);
356 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 get_colorbool_found = want_color(get_colorbool_found);
365 if (print) {
367 printf("%s\n", get_colorbool_found ? "true" : "false");
368 return 0;
369 } else
370 return get_colorbool_found ? 0 : 1;
371}
372int cmd_config(int argc, const char **argv, const char *prefix)
374{
375 int nongit = !startup_info->have_repository;
376 char *value;
377 given_config_file = getenv(CONFIG_ENVIRONMENT);
379 argc = parse_options(argc, argv, prefix, builtin_config_options,
381 builtin_config_usage,
382 PARSE_OPT_STOP_AT_NON_OPTION);
383 if (use_global_config + use_system_config + use_local_config + !!given_config_file > 1) {
385 error("only one config file at a time.");
386 usage_with_options(builtin_config_usage, builtin_config_options);
387 }
388 if (use_global_config) {
390 char *user_config = NULL;
391 char *xdg_config = NULL;
392 home_config_paths(&user_config, &xdg_config, "config");
394 if (!user_config)
396 /*
397 * It is unknown if HOME/.gitconfig exists, so
398 * we do not know if we should write to XDG
399 * location; error out even if XDG_CONFIG_HOME
400 * is set and points at a sane location.
401 */
402 die("$HOME not set");
403 if (access_or_warn(user_config, R_OK) &&
405 xdg_config && !access_or_warn(xdg_config, R_OK))
406 given_config_file = xdg_config;
407 else
408 given_config_file = user_config;
409 }
410 else if (use_system_config)
411 given_config_file = git_etc_gitconfig();
412 else if (use_local_config)
413 given_config_file = git_pathdup("config");
414 else if (given_config_file) {
415 if (!is_absolute_path(given_config_file) && prefix)
416 given_config_file =
417 xstrdup(prefix_filename(prefix,
418 strlen(prefix),
419 given_config_file));
420 }
421 if (respect_includes == -1)
423 respect_includes = !given_config_file;
424 if (end_null) {
426 term = '\0';
427 delim = '\n';
428 key_delim = '\n';
429 }
430 if (HAS_MULTI_BITS(types)) {
432 error("only one type at a time.");
433 usage_with_options(builtin_config_usage, builtin_config_options);
434 }
435 if (get_color_slot)
437 actions |= ACTION_GET_COLOR;
438 if (get_colorbool_slot)
439 actions |= ACTION_GET_COLORBOOL;
440 if ((get_color_slot || get_colorbool_slot) && types) {
442 error("--get-color and variable type are incoherent");
443 usage_with_options(builtin_config_usage, builtin_config_options);
444 }
445 if (HAS_MULTI_BITS(actions)) {
447 error("only one action at a time.");
448 usage_with_options(builtin_config_usage, builtin_config_options);
449 }
450 if (actions == 0)
451 switch (argc) {
452 case 1: actions = ACTION_GET; break;
453 case 2: actions = ACTION_SET; break;
454 case 3: actions = ACTION_SET_ALL; break;
455 default:
456 usage_with_options(builtin_config_usage, builtin_config_options);
457 }
458 if (actions == ACTION_LIST) {
460 check_argc(argc, 0, 0);
461 if (git_config_with_options(show_all_config, NULL,
462 given_config_file,
463 respect_includes) < 0) {
464 if (given_config_file)
465 die_errno("unable to read config file '%s'",
466 given_config_file);
467 else
468 die("error processing config file(s)");
469 }
470 }
471 else if (actions == ACTION_EDIT) {
472 check_argc(argc, 0, 0);
473 if (!given_config_file && nongit)
474 die("not in a git directory");
475 git_config(git_default_config, NULL);
476 launch_editor(given_config_file ?
477 given_config_file : git_path("config"),
478 NULL, NULL);
479 }
480 else if (actions == ACTION_SET) {
481 int ret;
482 check_argc(argc, 2, 2);
483 value = normalize_value(argv[0], argv[1]);
484 ret = git_config_set_in_file(given_config_file, argv[0], value);
485 if (ret == CONFIG_NOTHING_SET)
486 error("cannot overwrite multiple values with a single value\n"
487 " Use a regexp, --add or --replace-all to change %s.", argv[0]);
488 return ret;
489 }
490 else if (actions == ACTION_SET_ALL) {
491 check_argc(argc, 2, 3);
492 value = normalize_value(argv[0], argv[1]);
493 return git_config_set_multivar_in_file(given_config_file,
494 argv[0], value, argv[2], 0);
495 }
496 else if (actions == ACTION_ADD) {
497 check_argc(argc, 2, 2);
498 value = normalize_value(argv[0], argv[1]);
499 return git_config_set_multivar_in_file(given_config_file,
500 argv[0], value, "^$", 0);
501 }
502 else if (actions == ACTION_REPLACE_ALL) {
503 check_argc(argc, 2, 3);
504 value = normalize_value(argv[0], argv[1]);
505 return git_config_set_multivar_in_file(given_config_file,
506 argv[0], value, argv[2], 1);
507 }
508 else if (actions == ACTION_GET) {
509 check_argc(argc, 1, 2);
510 return get_value(argv[0], argv[1]);
511 }
512 else if (actions == ACTION_GET_ALL) {
513 do_all = 1;
514 check_argc(argc, 1, 2);
515 return get_value(argv[0], argv[1]);
516 }
517 else if (actions == ACTION_GET_REGEXP) {
518 show_keys = 1;
519 use_key_regexp = 1;
520 do_all = 1;
521 check_argc(argc, 1, 2);
522 return get_value(argv[0], argv[1]);
523 }
524 else if (actions == ACTION_UNSET) {
525 check_argc(argc, 1, 2);
526 if (argc == 2)
527 return git_config_set_multivar_in_file(given_config_file,
528 argv[0], NULL, argv[1], 0);
529 else
530 return git_config_set_in_file(given_config_file,
531 argv[0], NULL);
532 }
533 else if (actions == ACTION_UNSET_ALL) {
534 check_argc(argc, 1, 2);
535 return git_config_set_multivar_in_file(given_config_file,
536 argv[0], NULL, argv[1], 1);
537 }
538 else if (actions == ACTION_RENAME_SECTION) {
539 int ret;
540 check_argc(argc, 2, 2);
541 ret = git_config_rename_section_in_file(given_config_file,
542 argv[0], argv[1]);
543 if (ret < 0)
544 return ret;
545 if (ret == 0)
546 die("No such section!");
547 }
548 else if (actions == ACTION_REMOVE_SECTION) {
549 int ret;
550 check_argc(argc, 1, 1);
551 ret = git_config_rename_section_in_file(given_config_file,
552 argv[0], NULL);
553 if (ret < 0)
554 return ret;
555 if (ret == 0)
556 die("No such section!");
557 }
558 else if (actions == ACTION_GET_COLOR) {
559 get_color(argv[0]);
560 }
561 else if (actions == ACTION_GET_COLORBOOL) {
562 if (argc == 1)
563 color_stdout_is_tty = git_config_bool("command line", argv[0]);
564 return get_colorbool(argc != 0);
565 }
566 return 0;
568}
569int cmd_repo_config(int argc, const char **argv, const char *prefix)
571{
572 fprintf(stderr, "WARNING: git repo-config is deprecated in favor of git config.\n");
573 return cmd_config(argc, argv, prefix);
574}