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 "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("Config file location"),
53 OPT_BOOLEAN(0, "global", &use_global_config, "use global config file"),
54 OPT_BOOLEAN(0, "system", &use_system_config, "use system config file"),
55 OPT_BOOLEAN(0, "local", &use_local_config, "use repository config file"),
56 OPT_STRING('f', "file", &given_config_file, "file", "use given config file"),
57 OPT_GROUP("Action"),
58 OPT_BIT(0, "get", &actions, "get value: name [value-regex]", ACTION_GET),
59 OPT_BIT(0, "get-all", &actions, "get all values: key [value-regex]", ACTION_GET_ALL),
60 OPT_BIT(0, "get-regexp", &actions, "get values for regexp: name-regex [value-regex]", ACTION_GET_REGEXP),
61 OPT_BIT(0, "replace-all", &actions, "replace all matching variables: name value [value_regex]", ACTION_REPLACE_ALL),
62 OPT_BIT(0, "add", &actions, "adds a new variable: name value", ACTION_ADD),
63 OPT_BIT(0, "unset", &actions, "removes a variable: name [value-regex]", ACTION_UNSET),
64 OPT_BIT(0, "unset-all", &actions, "removes all matches: name [value-regex]", ACTION_UNSET_ALL),
65 OPT_BIT(0, "rename-section", &actions, "rename section: old-name new-name", ACTION_RENAME_SECTION),
66 OPT_BIT(0, "remove-section", &actions, "remove a section: name", ACTION_REMOVE_SECTION),
67 OPT_BIT('l', "list", &actions, "list all", ACTION_LIST),
68 OPT_BIT('e', "edit", &actions, "opens an editor", ACTION_EDIT),
69 OPT_STRING(0, "get-color", &get_color_slot, "slot", "find the color configured: [default]"),
70 OPT_STRING(0, "get-colorbool", &get_colorbool_slot, "slot", "find the color setting: [stdout-is-tty]"),
71 OPT_GROUP("Type"),
72 OPT_BIT(0, "bool", &types, "value is \"true\" or \"false\"", TYPE_BOOL),
73 OPT_BIT(0, "int", &types, "value is decimal number", TYPE_INT),
74 OPT_BIT(0, "bool-or-int", &types, "value is --bool or --int", TYPE_BOOL_OR_INT),
75 OPT_BIT(0, "path", &types, "value is a path (file or directory name)", TYPE_PATH),
76 OPT_GROUP("Other"),
77 OPT_BOOLEAN('z', "null", &end_null, "terminate values with NUL byte"),
78 OPT_BOOL(0, "includes", &respect_includes, "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 git_config_pathname(&vptr, key_, value_);
133 must_free_vptr = 1;
134 } else if (value_) {
135 vptr = value_;
136 } else {
137 /* Just show the key name */
138 vptr = "";
139 must_print_delim = 0;
140 }
141 seen++;
142 if (dup_error) {
143 error("More than one value for the key %s: %s",
144 key_, vptr);
145 }
146 else {
147 if (must_print_delim)
148 printf("%c", key_delim);
149 printf("%s%c", vptr, term);
150 }
151 if (must_free_vptr)
152 /* If vptr must be freed, it's a pointer to a
153 * dynamically allocated buffer, it's safe to cast to
154 * const.
155 */
156 free((char *)vptr);
157 return 0;
159}
160static int get_value(const char *key_, const char *regex_)
162{
163 int ret = CONFIG_GENERIC_ERROR;
164 char *global = NULL, *xdg = NULL, *repo_config = NULL;
165 const char *system_wide = NULL, *local;
166 struct config_include_data inc = CONFIG_INCLUDE_INIT;
167 config_fn_t fn;
168 void *data;
169 local = given_config_file;
171 if (!local) {
172 local = repo_config = git_pathdup("config");
173 if (git_config_system())
174 system_wide = git_etc_gitconfig();
175 home_config_paths(&global, &xdg, "config");
176 }
177 if (use_key_regexp) {
179 char *tl;
180 /*
182 * NEEDSWORK: this naive pattern lowercasing obviously does not
183 * work for more complex patterns like "^[^.]*Foo.*bar".
184 * Perhaps we should deprecate this altogether someday.
185 */
186 key = xstrdup(key_);
188 for (tl = key + strlen(key) - 1;
189 tl >= key && *tl != '.';
190 tl--)
191 *tl = tolower(*tl);
192 for (tl = key; *tl && *tl != '.'; tl++)
193 *tl = tolower(*tl);
194 key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
196 if (regcomp(key_regexp, key, REG_EXTENDED)) {
197 fprintf(stderr, "Invalid key pattern: %s\n", key_);
198 free(key);
199 ret = CONFIG_INVALID_PATTERN;
200 goto free_strings;
201 }
202 } else {
203 if (git_config_parse_key(key_, &key, NULL)) {
204 ret = CONFIG_INVALID_KEY;
205 goto free_strings;
206 }
207 }
208 if (regex_) {
210 if (regex_[0] == '!') {
211 do_not_match = 1;
212 regex_++;
213 }
214 regexp = (regex_t*)xmalloc(sizeof(regex_t));
216 if (regcomp(regexp, regex_, REG_EXTENDED)) {
217 fprintf(stderr, "Invalid pattern: %s\n", regex_);
218 ret = CONFIG_INVALID_PATTERN;
219 goto free_strings;
220 }
221 }
222 fn = show_config;
224 data = NULL;
225 if (respect_includes) {
226 inc.fn = fn;
227 inc.data = data;
228 fn = git_config_include;
229 data = &inc;
230 }
231 if (do_all && system_wide)
233 git_config_from_file(fn, system_wide, data);
234 if (do_all && xdg)
235 git_config_from_file(fn, xdg, data);
236 if (do_all && global)
237 git_config_from_file(fn, global, data);
238 if (do_all)
239 git_config_from_file(fn, local, data);
240 git_config_from_parameters(fn, data);
241 if (!do_all && !seen)
242 git_config_from_file(fn, local, data);
243 if (!do_all && !seen && global)
244 git_config_from_file(fn, global, data);
245 if (!do_all && !seen && xdg)
246 git_config_from_file(fn, xdg, data);
247 if (!do_all && !seen && system_wide)
248 git_config_from_file(fn, system_wide, data);
249 free(key);
251 if (regexp) {
252 regfree(regexp);
253 free(regexp);
254 }
255 if (do_all)
257 ret = !seen;
258 else
259 ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
260free_strings:
262 free(repo_config);
263 free(global);
264 free(xdg);
265 return ret;
266}
267static char *normalize_value(const char *key, const char *value)
269{
270 char *normalized;
271 if (!value)
273 return NULL;
274 if (types == 0 || types == TYPE_PATH)
276 /*
277 * We don't do normalization for TYPE_PATH here: If
278 * the path is like ~/foobar/, we prefer to store
279 * "~/foobar/" in the config file, and to expand the ~
280 * when retrieving the value.
281 */
282 normalized = xstrdup(value);
283 else {
284 normalized = xmalloc(64);
285 if (types == TYPE_INT) {
286 int v = git_config_int(key, value);
287 sprintf(normalized, "%d", v);
288 }
289 else if (types == TYPE_BOOL)
290 sprintf(normalized, "%s",
291 git_config_bool(key, value) ? "true" : "false");
292 else if (types == TYPE_BOOL_OR_INT) {
293 int is_bool, v;
294 v = git_config_bool_or_int(key, value, &is_bool);
295 if (!is_bool)
296 sprintf(normalized, "%d", v);
297 else
298 sprintf(normalized, "%s", v ? "true" : "false");
299 }
300 }
301 return normalized;
303}
304static int get_color_found;
306static const char *get_color_slot;
307static const char *get_colorbool_slot;
308static char parsed_color[COLOR_MAXLEN];
309static int git_get_color_config(const char *var, const char *value, void *cb)
311{
312 if (!strcmp(var, get_color_slot)) {
313 if (!value)
314 config_error_nonbool(var);
315 color_parse(value, var, parsed_color);
316 get_color_found = 1;
317 }
318 return 0;
319}
320static void get_color(const char *def_color)
322{
323 get_color_found = 0;
324 parsed_color[0] = '\0';
325 git_config_with_options(git_get_color_config, NULL,
326 given_config_file, respect_includes);
327 if (!get_color_found && def_color)
329 color_parse(def_color, "command line", parsed_color);
330 fputs(parsed_color, stdout);
332}
333static int get_colorbool_found;
335static int get_diff_color_found;
336static int get_color_ui_found;
337static 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}
348static int get_colorbool(int print)
350{
351 get_colorbool_found = -1;
352 get_diff_color_found = -1;
353 git_config_with_options(git_get_colorbool_config, NULL,
354 given_config_file, respect_includes);
355 if (get_colorbool_found < 0) {
357 if (!strcmp(get_colorbool_slot, "color.diff"))
358 get_colorbool_found = get_diff_color_found;
359 if (get_colorbool_found < 0)
360 get_colorbool_found = get_color_ui_found;
361 }
362 get_colorbool_found = want_color(get_colorbool_found);
364 if (print) {
366 printf("%s\n", get_colorbool_found ? "true" : "false");
367 return 0;
368 } else
369 return get_colorbool_found ? 0 : 1;
370}
371int cmd_config(int argc, const char **argv, const char *prefix)
373{
374 int nongit = !startup_info->have_repository;
375 char *value;
376 given_config_file = getenv(CONFIG_ENVIRONMENT);
378 argc = parse_options(argc, argv, prefix, builtin_config_options,
380 builtin_config_usage,
381 PARSE_OPT_STOP_AT_NON_OPTION);
382 if (use_global_config + use_system_config + use_local_config + !!given_config_file > 1) {
384 error("only one config file at a time.");
385 usage_with_options(builtin_config_usage, builtin_config_options);
386 }
387 if (use_global_config) {
389 char *user_config = NULL;
390 char *xdg_config = NULL;
391 home_config_paths(&user_config, &xdg_config, "config");
393 if (!user_config)
395 /*
396 * It is unknown if HOME/.gitconfig exists, so
397 * we do not know if we should write to XDG
398 * location; error out even if XDG_CONFIG_HOME
399 * is set and points at a sane location.
400 */
401 die("$HOME not set");
402 if (access_or_warn(user_config, R_OK) &&
404 xdg_config && !access_or_warn(xdg_config, R_OK))
405 given_config_file = xdg_config;
406 else
407 given_config_file = user_config;
408 }
409 else if (use_system_config)
410 given_config_file = git_etc_gitconfig();
411 else if (use_local_config)
412 given_config_file = git_pathdup("config");
413 else if (given_config_file) {
414 if (!is_absolute_path(given_config_file) && prefix)
415 given_config_file =
416 xstrdup(prefix_filename(prefix,
417 strlen(prefix),
418 given_config_file));
419 }
420 if (respect_includes == -1)
422 respect_includes = !given_config_file;
423 if (end_null) {
425 term = '\0';
426 delim = '\n';
427 key_delim = '\n';
428 }
429 if (HAS_MULTI_BITS(types)) {
431 error("only one type at a time.");
432 usage_with_options(builtin_config_usage, builtin_config_options);
433 }
434 if (get_color_slot)
436 actions |= ACTION_GET_COLOR;
437 if (get_colorbool_slot)
438 actions |= ACTION_GET_COLORBOOL;
439 if ((get_color_slot || get_colorbool_slot) && types) {
441 error("--get-color and variable type are incoherent");
442 usage_with_options(builtin_config_usage, builtin_config_options);
443 }
444 if (HAS_MULTI_BITS(actions)) {
446 error("only one action at a time.");
447 usage_with_options(builtin_config_usage, builtin_config_options);
448 }
449 if (actions == 0)
450 switch (argc) {
451 case 1: actions = ACTION_GET; break;
452 case 2: actions = ACTION_SET; break;
453 case 3: actions = ACTION_SET_ALL; break;
454 default:
455 usage_with_options(builtin_config_usage, builtin_config_options);
456 }
457 if (actions == ACTION_LIST) {
459 check_argc(argc, 0, 0);
460 if (git_config_with_options(show_all_config, NULL,
461 given_config_file,
462 respect_includes) < 0) {
463 if (given_config_file)
464 die_errno("unable to read config file '%s'",
465 given_config_file);
466 else
467 die("error processing config file(s)");
468 }
469 }
470 else if (actions == ACTION_EDIT) {
471 check_argc(argc, 0, 0);
472 if (!given_config_file && nongit)
473 die("not in a git directory");
474 git_config(git_default_config, NULL);
475 launch_editor(given_config_file ?
476 given_config_file : git_path("config"),
477 NULL, NULL);
478 }
479 else if (actions == ACTION_SET) {
480 int ret;
481 check_argc(argc, 2, 2);
482 value = normalize_value(argv[0], argv[1]);
483 ret = git_config_set_in_file(given_config_file, argv[0], value);
484 if (ret == CONFIG_NOTHING_SET)
485 error("cannot overwrite multiple values with a single value\n"
486 " Use a regexp, --add or --replace-all to change %s.", argv[0]);
487 return ret;
488 }
489 else if (actions == ACTION_SET_ALL) {
490 check_argc(argc, 2, 3);
491 value = normalize_value(argv[0], argv[1]);
492 return git_config_set_multivar_in_file(given_config_file,
493 argv[0], value, argv[2], 0);
494 }
495 else if (actions == ACTION_ADD) {
496 check_argc(argc, 2, 2);
497 value = normalize_value(argv[0], argv[1]);
498 return git_config_set_multivar_in_file(given_config_file,
499 argv[0], value, "^$", 0);
500 }
501 else if (actions == ACTION_REPLACE_ALL) {
502 check_argc(argc, 2, 3);
503 value = normalize_value(argv[0], argv[1]);
504 return git_config_set_multivar_in_file(given_config_file,
505 argv[0], value, argv[2], 1);
506 }
507 else if (actions == ACTION_GET) {
508 check_argc(argc, 1, 2);
509 return get_value(argv[0], argv[1]);
510 }
511 else if (actions == ACTION_GET_ALL) {
512 do_all = 1;
513 check_argc(argc, 1, 2);
514 return get_value(argv[0], argv[1]);
515 }
516 else if (actions == ACTION_GET_REGEXP) {
517 show_keys = 1;
518 use_key_regexp = 1;
519 do_all = 1;
520 check_argc(argc, 1, 2);
521 return get_value(argv[0], argv[1]);
522 }
523 else if (actions == ACTION_UNSET) {
524 check_argc(argc, 1, 2);
525 if (argc == 2)
526 return git_config_set_multivar_in_file(given_config_file,
527 argv[0], NULL, argv[1], 0);
528 else
529 return git_config_set_in_file(given_config_file,
530 argv[0], NULL);
531 }
532 else if (actions == ACTION_UNSET_ALL) {
533 check_argc(argc, 1, 2);
534 return git_config_set_multivar_in_file(given_config_file,
535 argv[0], NULL, argv[1], 1);
536 }
537 else if (actions == ACTION_RENAME_SECTION) {
538 int ret;
539 check_argc(argc, 2, 2);
540 ret = git_config_rename_section_in_file(given_config_file,
541 argv[0], argv[1]);
542 if (ret < 0)
543 return ret;
544 if (ret == 0)
545 die("No such section!");
546 }
547 else if (actions == ACTION_REMOVE_SECTION) {
548 int ret;
549 check_argc(argc, 1, 1);
550 ret = git_config_rename_section_in_file(given_config_file,
551 argv[0], NULL);
552 if (ret < 0)
553 return ret;
554 if (ret == 0)
555 die("No such section!");
556 }
557 else if (actions == ACTION_GET_COLOR) {
558 get_color(argv[0]);
559 }
560 else if (actions == ACTION_GET_COLORBOOL) {
561 if (argc == 1)
562 color_stdout_is_tty = git_config_bool("command line", argv[0]);
563 return get_colorbool(argc != 0);
564 }
565 return 0;
567}
568int cmd_repo_config(int argc, const char **argv, const char *prefix)
570{
571 fprintf(stderr, "WARNING: git repo-config is deprecated in favor of git config.\n");
572 return cmd_config(argc, argv, prefix);
573}