Merge branch 'lt/case-insensitive'
[git/git.git] / builtin-config.c
1 #include "builtin.h"
2 #include "cache.h"
3 #include "color.h"
4
5 static const char git_config_set_usage[] =
6 "git-config [ --global | --system | [ -f | --file ] config-file ] [ --bool | --int | --bool-or-int ] [ -z | --null ] [--get | --get-all | --get-regexp | --replace-all | --add | --unset | --unset-all] name [value [value_regex]] | --rename-section old_name new_name | --remove-section name | --list | --get-color var [default] | --get-colorbool name [stdout-is-tty]";
7
8 static char *key;
9 static regex_t *key_regexp;
10 static regex_t *regexp;
11 static int show_keys;
12 static int use_key_regexp;
13 static int do_all;
14 static int do_not_match;
15 static int seen;
16 static char delim = '=';
17 static char key_delim = ' ';
18 static char term = '\n';
19 static enum { T_RAW, T_INT, T_BOOL, T_BOOL_OR_INT } type = T_RAW;
20
21 static int show_all_config(const char *key_, const char *value_)
22 {
23 if (value_)
24 printf("%s%c%s%c", key_, delim, value_, term);
25 else
26 printf("%s%c", key_, term);
27 return 0;
28 }
29
30 static int show_config(const char* key_, const char* value_)
31 {
32 char value[256];
33 const char *vptr = value;
34 int dup_error = 0;
35
36 if (!use_key_regexp && strcmp(key_, key))
37 return 0;
38 if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
39 return 0;
40 if (regexp != NULL &&
41 (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
42 return 0;
43
44 if (show_keys) {
45 if (value_)
46 printf("%s%c", key_, key_delim);
47 else
48 printf("%s", key_);
49 }
50 if (seen && !do_all)
51 dup_error = 1;
52 if (type == T_INT)
53 sprintf(value, "%d", git_config_int(key_, value_?value_:""));
54 else if (type == T_BOOL)
55 vptr = git_config_bool(key_, value_) ? "true" : "false";
56 else if (type == T_BOOL_OR_INT) {
57 int is_bool, v;
58 v = git_config_bool_or_int(key_, value_, &is_bool);
59 if (is_bool)
60 vptr = v ? "true" : "false";
61 else
62 sprintf(value, "%d", v);
63 }
64 else
65 vptr = value_?value_:"";
66 seen++;
67 if (dup_error) {
68 error("More than one value for the key %s: %s",
69 key_, vptr);
70 }
71 else
72 printf("%s%c", vptr, term);
73
74 return 0;
75 }
76
77 static int get_value(const char* key_, const char* regex_)
78 {
79 int ret = -1;
80 char *tl;
81 char *global = NULL, *repo_config = NULL;
82 const char *system_wide = NULL, *local;
83
84 local = getenv(CONFIG_ENVIRONMENT);
85 if (!local) {
86 const char *home = getenv("HOME");
87 local = getenv(CONFIG_LOCAL_ENVIRONMENT);
88 if (!local)
89 local = repo_config = xstrdup(git_path("config"));
90 if (git_config_global() && home)
91 global = xstrdup(mkpath("%s/.gitconfig", home));
92 if (git_config_system())
93 system_wide = git_etc_gitconfig();
94 }
95
96 key = xstrdup(key_);
97 for (tl=key+strlen(key)-1; tl >= key && *tl != '.'; --tl)
98 *tl = tolower(*tl);
99 for (tl=key; *tl && *tl != '.'; ++tl)
100 *tl = tolower(*tl);
101
102 if (use_key_regexp) {
103 key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
104 if (regcomp(key_regexp, key, REG_EXTENDED)) {
105 fprintf(stderr, "Invalid key pattern: %s\n", key_);
106 goto free_strings;
107 }
108 }
109
110 if (regex_) {
111 if (regex_[0] == '!') {
112 do_not_match = 1;
113 regex_++;
114 }
115
116 regexp = (regex_t*)xmalloc(sizeof(regex_t));
117 if (regcomp(regexp, regex_, REG_EXTENDED)) {
118 fprintf(stderr, "Invalid pattern: %s\n", regex_);
119 goto free_strings;
120 }
121 }
122
123 if (do_all && system_wide)
124 git_config_from_file(show_config, system_wide);
125 if (do_all && global)
126 git_config_from_file(show_config, global);
127 git_config_from_file(show_config, local);
128 if (!do_all && !seen && global)
129 git_config_from_file(show_config, global);
130 if (!do_all && !seen && system_wide)
131 git_config_from_file(show_config, system_wide);
132
133 free(key);
134 if (regexp) {
135 regfree(regexp);
136 free(regexp);
137 }
138
139 if (do_all)
140 ret = !seen;
141 else
142 ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
143
144 free_strings:
145 free(repo_config);
146 free(global);
147 return ret;
148 }
149
150 char *normalize_value(const char *key, const char *value)
151 {
152 char *normalized;
153
154 if (!value)
155 return NULL;
156
157 if (type == T_RAW)
158 normalized = xstrdup(value);
159 else {
160 normalized = xmalloc(64);
161 if (type == T_INT) {
162 int v = git_config_int(key, value);
163 sprintf(normalized, "%d", v);
164 }
165 else if (type == T_BOOL)
166 sprintf(normalized, "%s",
167 git_config_bool(key, value) ? "true" : "false");
168 else if (type == T_BOOL_OR_INT) {
169 int is_bool, v;
170 v = git_config_bool_or_int(key, value, &is_bool);
171 if (!is_bool)
172 sprintf(normalized, "%d", v);
173 else
174 sprintf(normalized, "%s", v ? "true" : "false");
175 }
176 }
177
178 return normalized;
179 }
180
181 static int get_color_found;
182 static const char *get_color_slot;
183 static char parsed_color[COLOR_MAXLEN];
184
185 static int git_get_color_config(const char *var, const char *value)
186 {
187 if (!strcmp(var, get_color_slot)) {
188 if (!value)
189 config_error_nonbool(var);
190 color_parse(value, var, parsed_color);
191 get_color_found = 1;
192 }
193 return 0;
194 }
195
196 static int get_color(int argc, const char **argv)
197 {
198 /*
199 * grab the color setting for the given slot from the configuration,
200 * or parse the default value if missing, and return ANSI color
201 * escape sequence.
202 *
203 * e.g.
204 * git config --get-color color.diff.whitespace "blue reverse"
205 */
206 const char *def_color = NULL;
207
208 switch (argc) {
209 default:
210 usage(git_config_set_usage);
211 case 2:
212 def_color = argv[1];
213 /* fallthru */
214 case 1:
215 get_color_slot = argv[0];
216 break;
217 }
218
219 get_color_found = 0;
220 parsed_color[0] = '\0';
221 git_config(git_get_color_config);
222
223 if (!get_color_found && def_color)
224 color_parse(def_color, "command line", parsed_color);
225
226 fputs(parsed_color, stdout);
227 return 0;
228 }
229
230 static int stdout_is_tty;
231 static int get_colorbool_found;
232 static int get_diff_color_found;
233 static int git_get_colorbool_config(const char *var, const char *value)
234 {
235 if (!strcmp(var, get_color_slot)) {
236 get_colorbool_found =
237 git_config_colorbool(var, value, stdout_is_tty);
238 }
239 if (!strcmp(var, "diff.color")) {
240 get_diff_color_found =
241 git_config_colorbool(var, value, stdout_is_tty);
242 }
243 if (!strcmp(var, "color.ui")) {
244 git_use_color_default = git_config_colorbool(var, value, stdout_is_tty);
245 return 0;
246 }
247 return 0;
248 }
249
250 static int get_colorbool(int argc, const char **argv)
251 {
252 /*
253 * git config --get-colorbool <slot> [<stdout-is-tty>]
254 *
255 * returns "true" or "false" depending on how <slot>
256 * is configured.
257 */
258
259 if (argc == 2)
260 stdout_is_tty = git_config_bool("command line", argv[1]);
261 else if (argc == 1)
262 stdout_is_tty = isatty(1);
263 else
264 usage(git_config_set_usage);
265 get_colorbool_found = -1;
266 get_diff_color_found = -1;
267 get_color_slot = argv[0];
268 git_config(git_get_colorbool_config);
269
270 if (get_colorbool_found < 0) {
271 if (!strcmp(get_color_slot, "color.diff"))
272 get_colorbool_found = get_diff_color_found;
273 if (get_colorbool_found < 0)
274 get_colorbool_found = git_use_color_default;
275 }
276
277 if (argc == 1) {
278 return get_colorbool_found ? 0 : 1;
279 } else {
280 printf("%s\n", get_colorbool_found ? "true" : "false");
281 return 0;
282 }
283 }
284
285 int cmd_config(int argc, const char **argv, const char *prefix)
286 {
287 int nongit;
288 char* value;
289 const char *file = setup_git_directory_gently(&nongit);
290
291 while (1 < argc) {
292 if (!strcmp(argv[1], "--int"))
293 type = T_INT;
294 else if (!strcmp(argv[1], "--bool"))
295 type = T_BOOL;
296 else if (!strcmp(argv[1], "--bool-or-int"))
297 type = T_BOOL_OR_INT;
298 else if (!strcmp(argv[1], "--list") || !strcmp(argv[1], "-l")) {
299 if (argc != 2)
300 usage(git_config_set_usage);
301 if (git_config(show_all_config) < 0 && file && errno)
302 die("unable to read config file %s: %s", file,
303 strerror(errno));
304 return 0;
305 }
306 else if (!strcmp(argv[1], "--global")) {
307 char *home = getenv("HOME");
308 if (home) {
309 char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
310 setenv(CONFIG_ENVIRONMENT, user_config, 1);
311 free(user_config);
312 } else {
313 die("$HOME not set");
314 }
315 }
316 else if (!strcmp(argv[1], "--system"))
317 setenv(CONFIG_ENVIRONMENT, git_etc_gitconfig(), 1);
318 else if (!strcmp(argv[1], "--file") || !strcmp(argv[1], "-f")) {
319 if (argc < 3)
320 usage(git_config_set_usage);
321 if (!is_absolute_path(argv[2]) && file)
322 file = prefix_filename(file, strlen(file),
323 argv[2]);
324 else
325 file = argv[2];
326 setenv(CONFIG_ENVIRONMENT, file, 1);
327 argc--;
328 argv++;
329 }
330 else if (!strcmp(argv[1], "--null") || !strcmp(argv[1], "-z")) {
331 term = '\0';
332 delim = '\n';
333 key_delim = '\n';
334 }
335 else if (!strcmp(argv[1], "--rename-section")) {
336 int ret;
337 if (argc != 4)
338 usage(git_config_set_usage);
339 ret = git_config_rename_section(argv[2], argv[3]);
340 if (ret < 0)
341 return ret;
342 if (ret == 0) {
343 fprintf(stderr, "No such section!\n");
344 return 1;
345 }
346 return 0;
347 }
348 else if (!strcmp(argv[1], "--remove-section")) {
349 int ret;
350 if (argc != 3)
351 usage(git_config_set_usage);
352 ret = git_config_rename_section(argv[2], NULL);
353 if (ret < 0)
354 return ret;
355 if (ret == 0) {
356 fprintf(stderr, "No such section!\n");
357 return 1;
358 }
359 return 0;
360 } else if (!strcmp(argv[1], "--get-color")) {
361 return get_color(argc-2, argv+2);
362 } else if (!strcmp(argv[1], "--get-colorbool")) {
363 return get_colorbool(argc-2, argv+2);
364 } else
365 break;
366 argc--;
367 argv++;
368 }
369
370 switch (argc) {
371 case 2:
372 return get_value(argv[1], NULL);
373 case 3:
374 if (!strcmp(argv[1], "--unset"))
375 return git_config_set(argv[2], NULL);
376 else if (!strcmp(argv[1], "--unset-all"))
377 return git_config_set_multivar(argv[2], NULL, NULL, 1);
378 else if (!strcmp(argv[1], "--get"))
379 return get_value(argv[2], NULL);
380 else if (!strcmp(argv[1], "--get-all")) {
381 do_all = 1;
382 return get_value(argv[2], NULL);
383 } else if (!strcmp(argv[1], "--get-regexp")) {
384 show_keys = 1;
385 use_key_regexp = 1;
386 do_all = 1;
387 return get_value(argv[2], NULL);
388 } else {
389 value = normalize_value(argv[1], argv[2]);
390 return git_config_set(argv[1], value);
391 }
392 case 4:
393 if (!strcmp(argv[1], "--unset"))
394 return git_config_set_multivar(argv[2], NULL, argv[3], 0);
395 else if (!strcmp(argv[1], "--unset-all"))
396 return git_config_set_multivar(argv[2], NULL, argv[3], 1);
397 else if (!strcmp(argv[1], "--get"))
398 return get_value(argv[2], argv[3]);
399 else if (!strcmp(argv[1], "--get-all")) {
400 do_all = 1;
401 return get_value(argv[2], argv[3]);
402 } else if (!strcmp(argv[1], "--get-regexp")) {
403 show_keys = 1;
404 use_key_regexp = 1;
405 do_all = 1;
406 return get_value(argv[2], argv[3]);
407 } else if (!strcmp(argv[1], "--add")) {
408 value = normalize_value(argv[2], argv[3]);
409 return git_config_set_multivar(argv[2], value, "^$", 0);
410 } else if (!strcmp(argv[1], "--replace-all")) {
411 value = normalize_value(argv[2], argv[3]);
412 return git_config_set_multivar(argv[2], value, NULL, 1);
413 } else {
414 value = normalize_value(argv[1], argv[2]);
415 return git_config_set_multivar(argv[1], value, argv[3], 0);
416 }
417 case 5:
418 if (!strcmp(argv[1], "--replace-all")) {
419 value = normalize_value(argv[2], argv[3]);
420 return git_config_set_multivar(argv[2], value, argv[4], 1);
421 }
422 case 1:
423 default:
424 usage(git_config_set_usage);
425 }
426 return 0;
427 }