git config: trivial rename in preparation for parseopt
[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] | --edit | -e ]";
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_, void *cb)
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_, void *cb)
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 = config_exclusive_filename;
85 if (!local) {
86 const char *home = getenv("HOME");
87 local = repo_config = git_pathdup("config");
88 if (git_config_global() && home)
89 global = xstrdup(mkpath("%s/.gitconfig", home));
90 if (git_config_system())
91 system_wide = git_etc_gitconfig();
92 }
93
94 key = xstrdup(key_);
95 for (tl=key+strlen(key)-1; tl >= key && *tl != '.'; --tl)
96 *tl = tolower(*tl);
97 for (tl=key; *tl && *tl != '.'; ++tl)
98 *tl = tolower(*tl);
99
100 if (use_key_regexp) {
101 key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
102 if (regcomp(key_regexp, key, REG_EXTENDED)) {
103 fprintf(stderr, "Invalid key pattern: %s\n", key_);
104 goto free_strings;
105 }
106 }
107
108 if (regex_) {
109 if (regex_[0] == '!') {
110 do_not_match = 1;
111 regex_++;
112 }
113
114 regexp = (regex_t*)xmalloc(sizeof(regex_t));
115 if (regcomp(regexp, regex_, REG_EXTENDED)) {
116 fprintf(stderr, "Invalid pattern: %s\n", regex_);
117 goto free_strings;
118 }
119 }
120
121 if (do_all && system_wide)
122 git_config_from_file(show_config, system_wide, NULL);
123 if (do_all && global)
124 git_config_from_file(show_config, global, NULL);
125 git_config_from_file(show_config, local, NULL);
126 if (!do_all && !seen && global)
127 git_config_from_file(show_config, global, NULL);
128 if (!do_all && !seen && system_wide)
129 git_config_from_file(show_config, system_wide, NULL);
130
131 free(key);
132 if (regexp) {
133 regfree(regexp);
134 free(regexp);
135 }
136
137 if (do_all)
138 ret = !seen;
139 else
140 ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
141
142 free_strings:
143 free(repo_config);
144 free(global);
145 return ret;
146 }
147
148 static char *normalize_value(const char *key, const char *value)
149 {
150 char *normalized;
151
152 if (!value)
153 return NULL;
154
155 if (type == T_RAW)
156 normalized = xstrdup(value);
157 else {
158 normalized = xmalloc(64);
159 if (type == T_INT) {
160 int v = git_config_int(key, value);
161 sprintf(normalized, "%d", v);
162 }
163 else if (type == T_BOOL)
164 sprintf(normalized, "%s",
165 git_config_bool(key, value) ? "true" : "false");
166 else if (type == T_BOOL_OR_INT) {
167 int is_bool, v;
168 v = git_config_bool_or_int(key, value, &is_bool);
169 if (!is_bool)
170 sprintf(normalized, "%d", v);
171 else
172 sprintf(normalized, "%s", v ? "true" : "false");
173 }
174 }
175
176 return normalized;
177 }
178
179 static int get_color_found;
180 static const char *get_color_slot;
181 static const char *get_colorbool_slot;
182 static char parsed_color[COLOR_MAXLEN];
183
184 static int git_get_color_config(const char *var, const char *value, void *cb)
185 {
186 if (!strcmp(var, get_color_slot)) {
187 if (!value)
188 config_error_nonbool(var);
189 color_parse(value, var, parsed_color);
190 get_color_found = 1;
191 }
192 return 0;
193 }
194
195 static int get_color(int argc, const char **argv)
196 {
197 /*
198 * grab the color setting for the given slot from the configuration,
199 * or parse the default value if missing, and return ANSI color
200 * escape sequence.
201 *
202 * e.g.
203 * git config --get-color color.diff.whitespace "blue reverse"
204 */
205 const char *def_color = NULL;
206
207 switch (argc) {
208 default:
209 usage(git_config_set_usage);
210 case 2:
211 def_color = argv[1];
212 /* fallthru */
213 case 1:
214 get_color_slot = argv[0];
215 break;
216 }
217
218 get_color_found = 0;
219 parsed_color[0] = '\0';
220 git_config(git_get_color_config, NULL);
221
222 if (!get_color_found && def_color)
223 color_parse(def_color, "command line", parsed_color);
224
225 fputs(parsed_color, stdout);
226 return 0;
227 }
228
229 static int stdout_is_tty;
230 static int get_colorbool_found;
231 static int get_diff_color_found;
232 static int git_get_colorbool_config(const char *var, const char *value,
233 void *cb)
234 {
235 if (!strcmp(var, get_colorbool_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_colorbool_slot = argv[0];
268 git_config(git_get_colorbool_config, NULL);
269
270 if (get_colorbool_found < 0) {
271 if (!strcmp(get_colorbool_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 *unused_prefix)
286 {
287 int nongit;
288 char *value;
289 const char *prefix = setup_git_directory_gently(&nongit);
290
291 config_exclusive_filename = getenv(CONFIG_ENVIRONMENT);
292
293 while (1 < argc) {
294 if (!strcmp(argv[1], "--int"))
295 type = T_INT;
296 else if (!strcmp(argv[1], "--bool"))
297 type = T_BOOL;
298 else if (!strcmp(argv[1], "--bool-or-int"))
299 type = T_BOOL_OR_INT;
300 else if (!strcmp(argv[1], "--list") || !strcmp(argv[1], "-l")) {
301 if (argc != 2)
302 usage(git_config_set_usage);
303 if (git_config(show_all_config, NULL) < 0) {
304 if (config_exclusive_filename)
305 die("unable to read config file %s: %s",
306 config_exclusive_filename, strerror(errno));
307 else
308 die("error processing config file(s)");
309 }
310 return 0;
311 }
312 else if (!strcmp(argv[1], "--global")) {
313 char *home = getenv("HOME");
314 if (home) {
315 char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
316 config_exclusive_filename = user_config;
317 } else {
318 die("$HOME not set");
319 }
320 }
321 else if (!strcmp(argv[1], "--system"))
322 config_exclusive_filename = git_etc_gitconfig();
323 else if (!strcmp(argv[1], "--file") || !strcmp(argv[1], "-f")) {
324 if (argc < 3)
325 usage(git_config_set_usage);
326 if (!is_absolute_path(argv[2]) && prefix)
327 config_exclusive_filename = prefix_filename(prefix,
328 strlen(prefix),
329 argv[2]);
330 else
331 config_exclusive_filename = argv[2];
332 argc--;
333 argv++;
334 }
335 else if (!strcmp(argv[1], "--null") || !strcmp(argv[1], "-z")) {
336 term = '\0';
337 delim = '\n';
338 key_delim = '\n';
339 }
340 else if (!strcmp(argv[1], "--rename-section")) {
341 int ret;
342 if (argc != 4)
343 usage(git_config_set_usage);
344 ret = git_config_rename_section(argv[2], argv[3]);
345 if (ret < 0)
346 return ret;
347 if (ret == 0) {
348 fprintf(stderr, "No such section!\n");
349 return 1;
350 }
351 return 0;
352 }
353 else if (!strcmp(argv[1], "--remove-section")) {
354 int ret;
355 if (argc != 3)
356 usage(git_config_set_usage);
357 ret = git_config_rename_section(argv[2], NULL);
358 if (ret < 0)
359 return ret;
360 if (ret == 0) {
361 fprintf(stderr, "No such section!\n");
362 return 1;
363 }
364 return 0;
365 } else if (!strcmp(argv[1], "--get-color")) {
366 return get_color(argc-2, argv+2);
367 } else if (!strcmp(argv[1], "--get-colorbool")) {
368 return get_colorbool(argc-2, argv+2);
369 } else if (!strcmp(argv[1], "--edit") || !strcmp(argv[1], "-e")) {
370 if (argc != 2)
371 usage(git_config_set_usage);
372 git_config(git_default_config, NULL);
373 launch_editor(config_exclusive_filename ?
374 config_exclusive_filename : git_path("config"),
375 NULL, NULL);
376 return 0;
377 } else
378 break;
379 argc--;
380 argv++;
381 }
382
383 switch (argc) {
384 case 2:
385 return get_value(argv[1], NULL);
386 case 3:
387 if (!strcmp(argv[1], "--unset"))
388 return git_config_set(argv[2], NULL);
389 else if (!strcmp(argv[1], "--unset-all"))
390 return git_config_set_multivar(argv[2], NULL, NULL, 1);
391 else if (!strcmp(argv[1], "--get"))
392 return get_value(argv[2], NULL);
393 else if (!strcmp(argv[1], "--get-all")) {
394 do_all = 1;
395 return get_value(argv[2], NULL);
396 } else if (!strcmp(argv[1], "--get-regexp")) {
397 show_keys = 1;
398 use_key_regexp = 1;
399 do_all = 1;
400 return get_value(argv[2], NULL);
401 } else {
402 value = normalize_value(argv[1], argv[2]);
403 return git_config_set(argv[1], value);
404 }
405 case 4:
406 if (!strcmp(argv[1], "--unset"))
407 return git_config_set_multivar(argv[2], NULL, argv[3], 0);
408 else if (!strcmp(argv[1], "--unset-all"))
409 return git_config_set_multivar(argv[2], NULL, argv[3], 1);
410 else if (!strcmp(argv[1], "--get"))
411 return get_value(argv[2], argv[3]);
412 else if (!strcmp(argv[1], "--get-all")) {
413 do_all = 1;
414 return get_value(argv[2], argv[3]);
415 } else if (!strcmp(argv[1], "--get-regexp")) {
416 show_keys = 1;
417 use_key_regexp = 1;
418 do_all = 1;
419 return get_value(argv[2], argv[3]);
420 } else if (!strcmp(argv[1], "--add")) {
421 value = normalize_value(argv[2], argv[3]);
422 return git_config_set_multivar(argv[2], value, "^$", 0);
423 } else if (!strcmp(argv[1], "--replace-all")) {
424 value = normalize_value(argv[2], argv[3]);
425 return git_config_set_multivar(argv[2], value, NULL, 1);
426 } else {
427 value = normalize_value(argv[1], argv[2]);
428 return git_config_set_multivar(argv[1], value, argv[3], 0);
429 }
430 case 5:
431 if (!strcmp(argv[1], "--replace-all")) {
432 value = normalize_value(argv[2], argv[3]);
433 return git_config_set_multivar(argv[2], value, argv[4], 1);
434 }
435 case 1:
436 default:
437 usage(git_config_set_usage);
438 }
439 return 0;
440 }