5505ced8c13c5b7a93baa02fe6bd23c54fc1b1b1
[git/git.git] / builtin / config.c
1 #include "builtin.h"
2 #include "cache.h"
3 #include "color.h"
4 #include "parse-options.h"
5
6 static const char *const builtin_config_usage[] = {
7 "git config [options]",
8 NULL
9 };
10
11 static char *key;
12 static regex_t *key_regexp;
13 static regex_t *regexp;
14 static int show_keys;
15 static int use_key_regexp;
16 static int do_all;
17 static int do_not_match;
18 static int seen;
19 static char delim = '=';
20 static char key_delim = ' ';
21 static char term = '\n';
22
23 static int use_global_config, use_system_config, use_local_config;
24 static const char *given_config_file;
25 static int actions, types;
26 static const char *get_color_slot, *get_colorbool_slot;
27 static int end_null;
28
29 #define ACTION_GET (1<<0)
30 #define ACTION_GET_ALL (1<<1)
31 #define ACTION_GET_REGEXP (1<<2)
32 #define ACTION_REPLACE_ALL (1<<3)
33 #define ACTION_ADD (1<<4)
34 #define ACTION_UNSET (1<<5)
35 #define ACTION_UNSET_ALL (1<<6)
36 #define ACTION_RENAME_SECTION (1<<7)
37 #define ACTION_REMOVE_SECTION (1<<8)
38 #define ACTION_LIST (1<<9)
39 #define ACTION_EDIT (1<<10)
40 #define ACTION_SET (1<<11)
41 #define ACTION_SET_ALL (1<<12)
42 #define ACTION_GET_COLOR (1<<13)
43 #define ACTION_GET_COLORBOOL (1<<14)
44
45 #define TYPE_BOOL (1<<0)
46 #define TYPE_INT (1<<1)
47 #define TYPE_BOOL_OR_INT (1<<2)
48 #define TYPE_PATH (1<<3)
49
50 static struct option builtin_config_options[] = {
51 OPT_GROUP("Config file location"),
52 OPT_BOOLEAN(0, "global", &use_global_config, "use global config file"),
53 OPT_BOOLEAN(0, "system", &use_system_config, "use system config file"),
54 OPT_BOOLEAN(0, "local", &use_local_config, "use repository config file"),
55 OPT_STRING('f', "file", &given_config_file, "file", "use given config file"),
56 OPT_GROUP("Action"),
57 OPT_BIT(0, "get", &actions, "get value: name [value-regex]", ACTION_GET),
58 OPT_BIT(0, "get-all", &actions, "get all values: key [value-regex]", ACTION_GET_ALL),
59 OPT_BIT(0, "get-regexp", &actions, "get values for regexp: name-regex [value-regex]", ACTION_GET_REGEXP),
60 OPT_BIT(0, "replace-all", &actions, "replace all matching variables: name value [value_regex]", ACTION_REPLACE_ALL),
61 OPT_BIT(0, "add", &actions, "adds a new variable: name value", ACTION_ADD),
62 OPT_BIT(0, "unset", &actions, "removes a variable: name [value-regex]", ACTION_UNSET),
63 OPT_BIT(0, "unset-all", &actions, "removes all matches: name [value-regex]", ACTION_UNSET_ALL),
64 OPT_BIT(0, "rename-section", &actions, "rename section: old-name new-name", ACTION_RENAME_SECTION),
65 OPT_BIT(0, "remove-section", &actions, "remove a section: name", ACTION_REMOVE_SECTION),
66 OPT_BIT('l', "list", &actions, "list all", ACTION_LIST),
67 OPT_BIT('e', "edit", &actions, "opens an editor", ACTION_EDIT),
68 OPT_STRING(0, "get-color", &get_color_slot, "slot", "find the color configured: [default]"),
69 OPT_STRING(0, "get-colorbool", &get_colorbool_slot, "slot", "find the color setting: [stdout-is-tty]"),
70 OPT_GROUP("Type"),
71 OPT_BIT(0, "bool", &types, "value is \"true\" or \"false\"", TYPE_BOOL),
72 OPT_BIT(0, "int", &types, "value is decimal number", TYPE_INT),
73 OPT_BIT(0, "bool-or-int", &types, "value is --bool or --int", TYPE_BOOL_OR_INT),
74 OPT_BIT(0, "path", &types, "value is a path (file or directory name)", TYPE_PATH),
75 OPT_GROUP("Other"),
76 OPT_BOOLEAN('z', "null", &end_null, "terminate values with NUL byte"),
77 OPT_END(),
78 };
79
80 static void check_argc(int argc, int min, int max) {
81 if (argc >= min && argc <= max)
82 return;
83 error("wrong number of arguments");
84 usage_with_options(builtin_config_usage, builtin_config_options);
85 }
86
87 static int show_all_config(const char *key_, const char *value_, void *cb)
88 {
89 if (value_)
90 printf("%s%c%s%c", key_, delim, value_, term);
91 else
92 printf("%s%c", key_, term);
93 return 0;
94 }
95
96 static int show_config(const char *key_, const char *value_, void *cb)
97 {
98 char value[256];
99 const char *vptr = value;
100 int must_free_vptr = 0;
101 int dup_error = 0;
102
103 if (!use_key_regexp && strcmp(key_, key))
104 return 0;
105 if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
106 return 0;
107 if (regexp != NULL &&
108 (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
109 return 0;
110
111 if (show_keys) {
112 if (value_)
113 printf("%s%c", key_, key_delim);
114 else
115 printf("%s", key_);
116 }
117 if (seen && !do_all)
118 dup_error = 1;
119 if (types == TYPE_INT)
120 sprintf(value, "%d", git_config_int(key_, value_?value_:""));
121 else if (types == TYPE_BOOL)
122 vptr = git_config_bool(key_, value_) ? "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 vptr = v ? "true" : "false";
128 else
129 sprintf(value, "%d", v);
130 } else if (types == TYPE_PATH) {
131 git_config_pathname(&vptr, key_, value_);
132 must_free_vptr = 1;
133 }
134 else
135 vptr = value_?value_:"";
136 seen++;
137 if (dup_error) {
138 error("More than one value for the key %s: %s",
139 key_, vptr);
140 }
141 else
142 printf("%s%c", vptr, term);
143 if (must_free_vptr)
144 /* If vptr must be freed, it's a pointer to a
145 * dynamically allocated buffer, it's safe to cast to
146 * const.
147 */
148 free((char *)vptr);
149
150 return 0;
151 }
152
153 static int get_value(const char *key_, const char *regex_)
154 {
155 int ret = -1;
156 char *global = NULL, *repo_config = NULL;
157 const char *system_wide = NULL, *local;
158
159 local = config_exclusive_filename;
160 if (!local) {
161 const char *home = getenv("HOME");
162 local = repo_config = git_pathdup("config");
163 if (home)
164 global = xstrdup(mkpath("%s/.gitconfig", home));
165 if (git_config_system())
166 system_wide = git_etc_gitconfig();
167 }
168
169 if (use_key_regexp) {
170 char *tl;
171
172 /*
173 * NEEDSWORK: this naive pattern lowercasing obviously does not
174 * work for more complex patterns like "^[^.]*Foo.*bar".
175 * Perhaps we should deprecate this altogether someday.
176 */
177
178 key = xstrdup(key_);
179 for (tl = key + strlen(key) - 1;
180 tl >= key && *tl != '.';
181 tl--)
182 *tl = tolower(*tl);
183 for (tl = key; *tl && *tl != '.'; tl++)
184 *tl = tolower(*tl);
185
186 key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
187 if (regcomp(key_regexp, key, REG_EXTENDED)) {
188 fprintf(stderr, "Invalid key pattern: %s\n", key_);
189 free(key);
190 goto free_strings;
191 }
192 } else {
193 if (git_config_parse_key(key_, &key, NULL))
194 goto free_strings;
195 }
196
197 if (regex_) {
198 if (regex_[0] == '!') {
199 do_not_match = 1;
200 regex_++;
201 }
202
203 regexp = (regex_t*)xmalloc(sizeof(regex_t));
204 if (regcomp(regexp, regex_, REG_EXTENDED)) {
205 fprintf(stderr, "Invalid pattern: %s\n", regex_);
206 goto free_strings;
207 }
208 }
209
210 if (do_all && system_wide)
211 git_config_from_file(show_config, system_wide, NULL);
212 if (do_all && global)
213 git_config_from_file(show_config, global, NULL);
214 if (do_all)
215 git_config_from_file(show_config, local, NULL);
216 git_config_from_parameters(show_config, NULL);
217 if (!do_all && !seen)
218 git_config_from_file(show_config, local, NULL);
219 if (!do_all && !seen && global)
220 git_config_from_file(show_config, global, NULL);
221 if (!do_all && !seen && system_wide)
222 git_config_from_file(show_config, system_wide, NULL);
223
224 free(key);
225 if (regexp) {
226 regfree(regexp);
227 free(regexp);
228 }
229
230 if (do_all)
231 ret = !seen;
232 else
233 ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
234
235 free_strings:
236 free(repo_config);
237 free(global);
238 return ret;
239 }
240
241 static char *normalize_value(const char *key, const char *value)
242 {
243 char *normalized;
244
245 if (!value)
246 return NULL;
247
248 if (types == 0 || types == TYPE_PATH)
249 /*
250 * We don't do normalization for TYPE_PATH here: If
251 * the path is like ~/foobar/, we prefer to store
252 * "~/foobar/" in the config file, and to expand the ~
253 * when retrieving the value.
254 */
255 normalized = xstrdup(value);
256 else {
257 normalized = xmalloc(64);
258 if (types == TYPE_INT) {
259 int v = git_config_int(key, value);
260 sprintf(normalized, "%d", v);
261 }
262 else if (types == TYPE_BOOL)
263 sprintf(normalized, "%s",
264 git_config_bool(key, value) ? "true" : "false");
265 else if (types == TYPE_BOOL_OR_INT) {
266 int is_bool, v;
267 v = git_config_bool_or_int(key, value, &is_bool);
268 if (!is_bool)
269 sprintf(normalized, "%d", v);
270 else
271 sprintf(normalized, "%s", v ? "true" : "false");
272 }
273 }
274
275 return normalized;
276 }
277
278 static int get_color_found;
279 static const char *get_color_slot;
280 static const char *get_colorbool_slot;
281 static char parsed_color[COLOR_MAXLEN];
282
283 static int git_get_color_config(const char *var, const char *value, void *cb)
284 {
285 if (!strcmp(var, get_color_slot)) {
286 if (!value)
287 config_error_nonbool(var);
288 color_parse(value, var, parsed_color);
289 get_color_found = 1;
290 }
291 return 0;
292 }
293
294 static void get_color(const char *def_color)
295 {
296 get_color_found = 0;
297 parsed_color[0] = '\0';
298 git_config(git_get_color_config, NULL);
299
300 if (!get_color_found && def_color)
301 color_parse(def_color, "command line", parsed_color);
302
303 fputs(parsed_color, stdout);
304 }
305
306 static int get_colorbool_found;
307 static int get_diff_color_found;
308 static int git_get_colorbool_config(const char *var, const char *value,
309 void *cb)
310 {
311 if (!strcmp(var, get_colorbool_slot))
312 get_colorbool_found = git_config_colorbool(var, value);
313 else if (!strcmp(var, "diff.color"))
314 get_diff_color_found = git_config_colorbool(var, value);
315 else if (!strcmp(var, "color.ui"))
316 git_use_color_default = git_config_colorbool(var, value);
317 return 0;
318 }
319
320 static int get_colorbool(int print)
321 {
322 get_colorbool_found = -1;
323 get_diff_color_found = -1;
324 git_config(git_get_colorbool_config, NULL);
325
326 if (get_colorbool_found < 0) {
327 if (!strcmp(get_colorbool_slot, "color.diff"))
328 get_colorbool_found = get_diff_color_found;
329 if (get_colorbool_found < 0)
330 get_colorbool_found = git_use_color_default;
331 }
332
333 if (print) {
334 printf("%s\n", get_colorbool_found ? "true" : "false");
335 return 0;
336 } else
337 return get_colorbool_found ? 0 : 1;
338 }
339
340 int cmd_config(int argc, const char **argv, const char *prefix)
341 {
342 int nongit = !startup_info->have_repository;
343 char *value;
344
345 config_exclusive_filename = getenv(CONFIG_ENVIRONMENT);
346
347 argc = parse_options(argc, argv, prefix, builtin_config_options,
348 builtin_config_usage,
349 PARSE_OPT_STOP_AT_NON_OPTION);
350
351 if (use_global_config + use_system_config + use_local_config + !!given_config_file > 1) {
352 error("only one config file at a time.");
353 usage_with_options(builtin_config_usage, builtin_config_options);
354 }
355
356 if (use_global_config) {
357 char *home = getenv("HOME");
358 if (home) {
359 char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
360 config_exclusive_filename = user_config;
361 } else {
362 die("$HOME not set");
363 }
364 }
365 else if (use_system_config)
366 config_exclusive_filename = git_etc_gitconfig();
367 else if (use_local_config)
368 config_exclusive_filename = git_pathdup("config");
369 else if (given_config_file) {
370 if (!is_absolute_path(given_config_file) && prefix)
371 config_exclusive_filename = prefix_filename(prefix,
372 strlen(prefix),
373 given_config_file);
374 else
375 config_exclusive_filename = given_config_file;
376 }
377
378 if (end_null) {
379 term = '\0';
380 delim = '\n';
381 key_delim = '\n';
382 }
383
384 if (HAS_MULTI_BITS(types)) {
385 error("only one type at a time.");
386 usage_with_options(builtin_config_usage, builtin_config_options);
387 }
388
389 if (get_color_slot)
390 actions |= ACTION_GET_COLOR;
391 if (get_colorbool_slot)
392 actions |= ACTION_GET_COLORBOOL;
393
394 if ((get_color_slot || get_colorbool_slot) && types) {
395 error("--get-color and variable type are incoherent");
396 usage_with_options(builtin_config_usage, builtin_config_options);
397 }
398
399 if (HAS_MULTI_BITS(actions)) {
400 error("only one action at a time.");
401 usage_with_options(builtin_config_usage, builtin_config_options);
402 }
403 if (actions == 0)
404 switch (argc) {
405 case 1: actions = ACTION_GET; break;
406 case 2: actions = ACTION_SET; break;
407 case 3: actions = ACTION_SET_ALL; break;
408 default:
409 usage_with_options(builtin_config_usage, builtin_config_options);
410 }
411
412 if (actions == ACTION_LIST) {
413 check_argc(argc, 0, 0);
414 if (git_config(show_all_config, NULL) < 0) {
415 if (config_exclusive_filename)
416 die_errno("unable to read config file '%s'",
417 config_exclusive_filename);
418 else
419 die("error processing config file(s)");
420 }
421 }
422 else if (actions == ACTION_EDIT) {
423 check_argc(argc, 0, 0);
424 if (!config_exclusive_filename && nongit)
425 die("not in a git directory");
426 git_config(git_default_config, NULL);
427 launch_editor(config_exclusive_filename ?
428 config_exclusive_filename : git_path("config"),
429 NULL, NULL);
430 }
431 else if (actions == ACTION_SET) {
432 int ret;
433 check_argc(argc, 2, 2);
434 value = normalize_value(argv[0], argv[1]);
435 ret = git_config_set(argv[0], value);
436 if (ret == CONFIG_NOTHING_SET)
437 error("cannot overwrite multiple values with a single value\n"
438 " Use a regexp, --add or --set-all to change %s.", argv[0]);
439 return ret;
440 }
441 else if (actions == ACTION_SET_ALL) {
442 check_argc(argc, 2, 3);
443 value = normalize_value(argv[0], argv[1]);
444 return git_config_set_multivar(argv[0], value, argv[2], 0);
445 }
446 else if (actions == ACTION_ADD) {
447 check_argc(argc, 2, 2);
448 value = normalize_value(argv[0], argv[1]);
449 return git_config_set_multivar(argv[0], value, "^$", 0);
450 }
451 else if (actions == ACTION_REPLACE_ALL) {
452 check_argc(argc, 2, 3);
453 value = normalize_value(argv[0], argv[1]);
454 return git_config_set_multivar(argv[0], value, argv[2], 1);
455 }
456 else if (actions == ACTION_GET) {
457 check_argc(argc, 1, 2);
458 return get_value(argv[0], argv[1]);
459 }
460 else if (actions == ACTION_GET_ALL) {
461 do_all = 1;
462 check_argc(argc, 1, 2);
463 return get_value(argv[0], argv[1]);
464 }
465 else if (actions == ACTION_GET_REGEXP) {
466 show_keys = 1;
467 use_key_regexp = 1;
468 do_all = 1;
469 check_argc(argc, 1, 2);
470 return get_value(argv[0], argv[1]);
471 }
472 else if (actions == ACTION_UNSET) {
473 check_argc(argc, 1, 2);
474 if (argc == 2)
475 return git_config_set_multivar(argv[0], NULL, argv[1], 0);
476 else
477 return git_config_set(argv[0], NULL);
478 }
479 else if (actions == ACTION_UNSET_ALL) {
480 check_argc(argc, 1, 2);
481 return git_config_set_multivar(argv[0], NULL, argv[1], 1);
482 }
483 else if (actions == ACTION_RENAME_SECTION) {
484 int ret;
485 check_argc(argc, 2, 2);
486 ret = git_config_rename_section(argv[0], argv[1]);
487 if (ret < 0)
488 return ret;
489 if (ret == 0)
490 die("No such section!");
491 }
492 else if (actions == ACTION_REMOVE_SECTION) {
493 int ret;
494 check_argc(argc, 1, 1);
495 ret = git_config_rename_section(argv[0], NULL);
496 if (ret < 0)
497 return ret;
498 if (ret == 0)
499 die("No such section!");
500 }
501 else if (actions == ACTION_GET_COLOR) {
502 get_color(argv[0]);
503 }
504 else if (actions == ACTION_GET_COLORBOOL) {
505 if (argc == 1)
506 color_stdout_is_tty = git_config_bool("command line", argv[0]);
507 return get_colorbool(argc != 0);
508 }
509
510 return 0;
511 }
512
513 int cmd_repo_config(int argc, const char **argv, const char *prefix)
514 {
515 fprintf(stderr, "WARNING: git repo-config is deprecated in favor of git config.\n");
516 return cmd_config(argc, argv, prefix);
517 }