gitk: Second try to work around the command line limit on Windows
[git/dscho.git] / builtin / config.c
blob4bc46b15fde00d913577a2980778746f8315bb70
1 #include "builtin.h"
2 #include "cache.h"
3 #include "color.h"
4 #include "parse-options.h"
6 static const char *const builtin_config_usage[] = {
7 "git config [options]",
8 NULL
9 };
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';
23 static int use_global_config, use_system_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;
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)
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)
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_STRING('f', "file", &given_config_file, "FILE", "use given config file"),
55 OPT_GROUP("Action"),
56 OPT_BIT(0, "get", &actions, "get value: name [value-regex]", ACTION_GET),
57 OPT_BIT(0, "get-all", &actions, "get all values: key [value-regex]", ACTION_GET_ALL),
58 OPT_BIT(0, "get-regexp", &actions, "get values for regexp: name-regex [value-regex]", ACTION_GET_REGEXP),
59 OPT_BIT(0, "replace-all", &actions, "replace all matching variables: name value [value_regex]", ACTION_REPLACE_ALL),
60 OPT_BIT(0, "add", &actions, "adds a new variable: name value", ACTION_ADD),
61 OPT_BIT(0, "unset", &actions, "removes a variable: name [value-regex]", ACTION_UNSET),
62 OPT_BIT(0, "unset-all", &actions, "removes all matches: name [value-regex]", ACTION_UNSET_ALL),
63 OPT_BIT(0, "rename-section", &actions, "rename section: old-name new-name", ACTION_RENAME_SECTION),
64 OPT_BIT(0, "remove-section", &actions, "remove a section: name", ACTION_REMOVE_SECTION),
65 OPT_BIT('l', "list", &actions, "list all", ACTION_LIST),
66 OPT_BIT('e', "edit", &actions, "opens an editor", ACTION_EDIT),
67 OPT_STRING(0, "get-color", &get_color_slot, "slot", "find the color configured: [default]"),
68 OPT_STRING(0, "get-colorbool", &get_colorbool_slot, "slot", "find the color setting: [stdout-is-tty]"),
69 OPT_GROUP("Type"),
70 OPT_BIT(0, "bool", &types, "value is \"true\" or \"false\"", TYPE_BOOL),
71 OPT_BIT(0, "int", &types, "value is decimal number", TYPE_INT),
72 OPT_BIT(0, "bool-or-int", &types, "value is --bool or --int", TYPE_BOOL_OR_INT),
73 OPT_BIT(0, "path", &types, "value is a path (file or directory name)", TYPE_PATH),
74 OPT_GROUP("Other"),
75 OPT_BOOLEAN('z', "null", &end_null, "terminate values with NUL byte"),
76 OPT_END(),
79 static void check_argc(int argc, int min, int max) {
80 if (argc >= min && argc <= max)
81 return;
82 error("wrong number of arguments");
83 usage_with_options(builtin_config_usage, builtin_config_options);
86 static int show_all_config(const char *key_, const char *value_, void *cb)
88 if (value_)
89 printf("%s%c%s%c", key_, delim, value_, term);
90 else
91 printf("%s%c", key_, term);
92 return 0;
95 static int show_config(const char *key_, const char *value_, void *cb)
97 char value[256];
98 const char *vptr = value;
99 int must_free_vptr = 0;
100 int dup_error = 0;
102 if (!use_key_regexp && strcmp(key_, key))
103 return 0;
104 if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
105 return 0;
106 if (regexp != NULL &&
107 (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
108 return 0;
110 if (show_keys) {
111 if (value_)
112 printf("%s%c", key_, key_delim);
113 else
114 printf("%s", key_);
116 if (seen && !do_all)
117 dup_error = 1;
118 if (types == TYPE_INT)
119 sprintf(value, "%d", git_config_int(key_, value_?value_:""));
120 else if (types == TYPE_BOOL)
121 vptr = git_config_bool(key_, value_) ? "true" : "false";
122 else if (types == TYPE_BOOL_OR_INT) {
123 int is_bool, v;
124 v = git_config_bool_or_int(key_, value_, &is_bool);
125 if (is_bool)
126 vptr = v ? "true" : "false";
127 else
128 sprintf(value, "%d", v);
129 } else if (types == TYPE_PATH) {
130 git_config_pathname(&vptr, key_, value_);
131 must_free_vptr = 1;
133 else
134 vptr = value_?value_:"";
135 seen++;
136 if (dup_error) {
137 error("More than one value for the key %s: %s",
138 key_, vptr);
140 else
141 printf("%s%c", vptr, term);
142 if (must_free_vptr)
143 /* If vptr must be freed, it's a pointer to a
144 * dynamically allocated buffer, it's safe to cast to
145 * const.
147 free((char *)vptr);
149 return 0;
152 static int get_value(const char *key_, const char *regex_)
154 int ret = -1;
155 char *tl;
156 char *global = NULL, *repo_config = NULL;
157 const char *system_wide = NULL, *local;
159 local = config_exclusive_filename;
160 if (!local) {
161 const char *home = getenv("HOME");
162 local = repo_config = git_pathdup("config");
163 if (git_config_global() && home)
164 global = xstrdup(mkpath("%s/.gitconfig", home));
165 if (git_config_system())
166 system_wide = git_etc_gitconfig();
169 key = xstrdup(key_);
170 for (tl=key+strlen(key)-1; tl >= key && *tl != '.'; --tl)
171 *tl = tolower(*tl);
172 for (tl=key; *tl && *tl != '.'; ++tl)
173 *tl = tolower(*tl);
175 if (use_key_regexp) {
176 key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
177 if (regcomp(key_regexp, key, REG_EXTENDED)) {
178 fprintf(stderr, "Invalid key pattern: %s\n", key_);
179 goto free_strings;
183 if (regex_) {
184 if (regex_[0] == '!') {
185 do_not_match = 1;
186 regex_++;
189 regexp = (regex_t*)xmalloc(sizeof(regex_t));
190 if (regcomp(regexp, regex_, REG_EXTENDED)) {
191 fprintf(stderr, "Invalid pattern: %s\n", regex_);
192 goto free_strings;
196 if (do_all && system_wide)
197 git_config_from_file(show_config, system_wide, NULL);
198 if (do_all && global)
199 git_config_from_file(show_config, global, NULL);
200 git_config_from_file(show_config, local, NULL);
201 if (!do_all && !seen && global)
202 git_config_from_file(show_config, global, NULL);
203 if (!do_all && !seen && system_wide)
204 git_config_from_file(show_config, system_wide, NULL);
206 free(key);
207 if (regexp) {
208 regfree(regexp);
209 free(regexp);
212 if (do_all)
213 ret = !seen;
214 else
215 ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
217 free_strings:
218 free(repo_config);
219 free(global);
220 return ret;
223 static char *normalize_value(const char *key, const char *value)
225 char *normalized;
227 if (!value)
228 return NULL;
230 if (types == 0 || types == TYPE_PATH)
232 * We don't do normalization for TYPE_PATH here: If
233 * the path is like ~/foobar/, we prefer to store
234 * "~/foobar/" in the config file, and to expand the ~
235 * when retrieving the value.
237 normalized = xstrdup(value);
238 else {
239 normalized = xmalloc(64);
240 if (types == TYPE_INT) {
241 int v = git_config_int(key, value);
242 sprintf(normalized, "%d", v);
244 else if (types == TYPE_BOOL)
245 sprintf(normalized, "%s",
246 git_config_bool(key, value) ? "true" : "false");
247 else if (types == TYPE_BOOL_OR_INT) {
248 int is_bool, v;
249 v = git_config_bool_or_int(key, value, &is_bool);
250 if (!is_bool)
251 sprintf(normalized, "%d", v);
252 else
253 sprintf(normalized, "%s", v ? "true" : "false");
257 return normalized;
260 static int get_color_found;
261 static const char *get_color_slot;
262 static const char *get_colorbool_slot;
263 static char parsed_color[COLOR_MAXLEN];
265 static int git_get_color_config(const char *var, const char *value, void *cb)
267 if (!strcmp(var, get_color_slot)) {
268 if (!value)
269 config_error_nonbool(var);
270 color_parse(value, var, parsed_color);
271 get_color_found = 1;
273 return 0;
276 static void get_color(const char *def_color)
278 get_color_found = 0;
279 parsed_color[0] = '\0';
280 git_config(git_get_color_config, NULL);
282 if (!get_color_found && def_color)
283 color_parse(def_color, "command line", parsed_color);
285 fputs(parsed_color, stdout);
288 static int stdout_is_tty;
289 static int get_colorbool_found;
290 static int get_diff_color_found;
291 static int git_get_colorbool_config(const char *var, const char *value,
292 void *cb)
294 if (!strcmp(var, get_colorbool_slot)) {
295 get_colorbool_found =
296 git_config_colorbool(var, value, stdout_is_tty);
298 if (!strcmp(var, "diff.color")) {
299 get_diff_color_found =
300 git_config_colorbool(var, value, stdout_is_tty);
302 if (!strcmp(var, "color.ui")) {
303 git_use_color_default = git_config_colorbool(var, value, stdout_is_tty);
304 return 0;
306 return 0;
309 static int get_colorbool(int print)
311 get_colorbool_found = -1;
312 get_diff_color_found = -1;
313 git_config(git_get_colorbool_config, NULL);
315 if (get_colorbool_found < 0) {
316 if (!strcmp(get_colorbool_slot, "color.diff"))
317 get_colorbool_found = get_diff_color_found;
318 if (get_colorbool_found < 0)
319 get_colorbool_found = git_use_color_default;
322 if (print) {
323 printf("%s\n", get_colorbool_found ? "true" : "false");
324 return 0;
325 } else
326 return get_colorbool_found ? 0 : 1;
329 int cmd_config(int argc, const char **argv, const char *unused_prefix)
331 int nongit;
332 char *value;
333 const char *prefix = setup_git_directory_gently(&nongit);
335 config_exclusive_filename = getenv(CONFIG_ENVIRONMENT);
337 argc = parse_options(argc, argv, prefix, builtin_config_options,
338 builtin_config_usage,
339 PARSE_OPT_STOP_AT_NON_OPTION);
341 if (use_global_config + use_system_config + !!given_config_file > 1) {
342 error("only one config file at a time.");
343 usage_with_options(builtin_config_usage, builtin_config_options);
346 if (use_global_config) {
347 char *home = getenv("HOME");
348 if (home) {
349 char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
350 config_exclusive_filename = user_config;
351 } else {
352 die("$HOME not set");
355 else if (use_system_config)
356 config_exclusive_filename = git_etc_gitconfig();
357 else if (given_config_file) {
358 if (!is_absolute_path(given_config_file) && prefix)
359 config_exclusive_filename = prefix_filename(prefix,
360 strlen(prefix),
361 given_config_file);
362 else
363 config_exclusive_filename = given_config_file;
366 if (end_null) {
367 term = '\0';
368 delim = '\n';
369 key_delim = '\n';
372 if (HAS_MULTI_BITS(types)) {
373 error("only one type at a time.");
374 usage_with_options(builtin_config_usage, builtin_config_options);
377 if (get_color_slot)
378 actions |= ACTION_GET_COLOR;
379 if (get_colorbool_slot)
380 actions |= ACTION_GET_COLORBOOL;
382 if ((get_color_slot || get_colorbool_slot) && types) {
383 error("--get-color and variable type are incoherent");
384 usage_with_options(builtin_config_usage, builtin_config_options);
387 if (HAS_MULTI_BITS(actions)) {
388 error("only one action at a time.");
389 usage_with_options(builtin_config_usage, builtin_config_options);
391 if (actions == 0)
392 switch (argc) {
393 case 1: actions = ACTION_GET; break;
394 case 2: actions = ACTION_SET; break;
395 case 3: actions = ACTION_SET_ALL; break;
396 default:
397 usage_with_options(builtin_config_usage, builtin_config_options);
400 if (actions == ACTION_LIST) {
401 check_argc(argc, 0, 0);
402 if (git_config(show_all_config, NULL) < 0) {
403 if (config_exclusive_filename)
404 die_errno("unable to read config file '%s'",
405 config_exclusive_filename);
406 else
407 die("error processing config file(s)");
410 else if (actions == ACTION_EDIT) {
411 check_argc(argc, 0, 0);
412 if (!config_exclusive_filename && nongit)
413 die("not in a git directory");
414 git_config(git_default_config, NULL);
415 launch_editor(config_exclusive_filename ?
416 config_exclusive_filename : git_path("config"),
417 NULL, NULL);
419 else if (actions == ACTION_SET) {
420 check_argc(argc, 2, 2);
421 value = normalize_value(argv[0], argv[1]);
422 return git_config_set(argv[0], value);
424 else if (actions == ACTION_SET_ALL) {
425 check_argc(argc, 2, 3);
426 value = normalize_value(argv[0], argv[1]);
427 return git_config_set_multivar(argv[0], value, argv[2], 0);
429 else if (actions == ACTION_ADD) {
430 check_argc(argc, 2, 2);
431 value = normalize_value(argv[0], argv[1]);
432 return git_config_set_multivar(argv[0], value, "^$", 0);
434 else if (actions == ACTION_REPLACE_ALL) {
435 check_argc(argc, 2, 3);
436 value = normalize_value(argv[0], argv[1]);
437 return git_config_set_multivar(argv[0], value, argv[2], 1);
439 else if (actions == ACTION_GET) {
440 check_argc(argc, 1, 2);
441 return get_value(argv[0], argv[1]);
443 else if (actions == ACTION_GET_ALL) {
444 do_all = 1;
445 check_argc(argc, 1, 2);
446 return get_value(argv[0], argv[1]);
448 else if (actions == ACTION_GET_REGEXP) {
449 show_keys = 1;
450 use_key_regexp = 1;
451 do_all = 1;
452 check_argc(argc, 1, 2);
453 return get_value(argv[0], argv[1]);
455 else if (actions == ACTION_UNSET) {
456 check_argc(argc, 1, 2);
457 if (argc == 2)
458 return git_config_set_multivar(argv[0], NULL, argv[1], 0);
459 else
460 return git_config_set(argv[0], NULL);
462 else if (actions == ACTION_UNSET_ALL) {
463 check_argc(argc, 1, 2);
464 return git_config_set_multivar(argv[0], NULL, argv[1], 1);
466 else if (actions == ACTION_RENAME_SECTION) {
467 int ret;
468 check_argc(argc, 2, 2);
469 ret = git_config_rename_section(argv[0], argv[1]);
470 if (ret < 0)
471 return ret;
472 if (ret == 0)
473 die("No such section!");
475 else if (actions == ACTION_REMOVE_SECTION) {
476 int ret;
477 check_argc(argc, 1, 1);
478 ret = git_config_rename_section(argv[0], NULL);
479 if (ret < 0)
480 return ret;
481 if (ret == 0)
482 die("No such section!");
484 else if (actions == ACTION_GET_COLOR) {
485 get_color(argv[0]);
487 else if (actions == ACTION_GET_COLORBOOL) {
488 if (argc == 1)
489 stdout_is_tty = git_config_bool("command line", argv[0]);
490 else if (argc == 0)
491 stdout_is_tty = isatty(1);
492 return get_colorbool(argc != 0);
495 return 0;