builtin/config.c

   1 #include "builtin.h"
   2 #include "cache.h"
   3 #include "color.h"
   4 #include "parse-options.h"
   5 #include "urlmatch.h"
   6 #include "quote.h"
   7
   8 static const char *const builtin_config_usage[] = {
   9         N_("git config [<options>]"),
  10         NULL
  11 };
  12
  13 static char *key;
  14 static regex_t *key_regexp;
  15 static regex_t *regexp;
  16 static int show_keys;
  17 static int omit_values;
  18 static int use_key_regexp;
  19 static int do_all;
  20 static int do_not_match;
  21 static char delim = '=';
  22 static char key_delim = ' ';
  23 static char term = '\n';
  24
  25 static int use_global_config, use_system_config, use_local_config;
  26 static struct git_config_source given_config_source;
  27 static int actions, types;
  28 static int end_null;
  29 static int respect_includes = -1;
  30 static int show_origin;
  31
  32 #define ACTION_GET (1<<0)
  33 #define ACTION_GET_ALL (1<<1)
  34 #define ACTION_GET_REGEXP (1<<2)
  35 #define ACTION_REPLACE_ALL (1<<3)
  36 #define ACTION_ADD (1<<4)
  37 #define ACTION_UNSET (1<<5)
  38 #define ACTION_UNSET_ALL (1<<6)
  39 #define ACTION_RENAME_SECTION (1<<7)
  40 #define ACTION_REMOVE_SECTION (1<<8)
  41 #define ACTION_LIST (1<<9)
  42 #define ACTION_EDIT (1<<10)
  43 #define ACTION_SET (1<<11)
  44 #define ACTION_SET_ALL (1<<12)
  45 #define ACTION_GET_COLOR (1<<13)
  46 #define ACTION_GET_COLORBOOL (1<<14)
  47 #define ACTION_GET_URLMATCH (1<<15)
  48
  49 #define TYPE_BOOL (1<<0)
  50 #define TYPE_INT (1<<1)
  51 #define TYPE_BOOL_OR_INT (1<<2)
  52 #define TYPE_PATH (1<<3)
  53
  54 static struct option builtin_config_options[] = {
  55         OPT_GROUP(N_("Config file location")),
  56         OPT_BOOL(0, "global", &use_global_config, N_("use global config file")),
  57         OPT_BOOL(0, "system", &use_system_config, N_("use system config file")),
  58         OPT_BOOL(0, "local", &use_local_config, N_("use repository config file")),
  59         OPT_STRING('f', "file", &given_config_source.file, N_("file"), N_("use given config file")),
  60         OPT_STRING(0, "blob", &given_config_source.blob, N_("blob-id"), N_("read config from given blob object")),
  61         OPT_GROUP(N_("Action")),
  62         OPT_BIT(0, "get", &actions, N_("get value: name [value-regex]"), ACTION_GET),
  63         OPT_BIT(0, "get-all", &actions, N_("get all values: key [value-regex]"), ACTION_GET_ALL),
  64         OPT_BIT(0, "get-regexp", &actions, N_("get values for regexp: name-regex [value-regex]"), ACTION_GET_REGEXP),
  65         OPT_BIT(0, "get-urlmatch", &actions, N_("get value specific for the URL: section[.var] URL"), ACTION_GET_URLMATCH),
  66         OPT_BIT(0, "replace-all", &actions, N_("replace all matching variables: name value [value_regex]"), ACTION_REPLACE_ALL),
  67         OPT_BIT(0, "add", &actions, N_("add a new variable: name value"), ACTION_ADD),
  68         OPT_BIT(0, "unset", &actions, N_("remove a variable: name [value-regex]"), ACTION_UNSET),
  69         OPT_BIT(0, "unset-all", &actions, N_("remove all matches: name [value-regex]"), ACTION_UNSET_ALL),
  70         OPT_BIT(0, "rename-section", &actions, N_("rename section: old-name new-name"), ACTION_RENAME_SECTION),
  71         OPT_BIT(0, "remove-section", &actions, N_("remove a section: name"), ACTION_REMOVE_SECTION),
  72         OPT_BIT('l', "list", &actions, N_("list all"), ACTION_LIST),
  73         OPT_BIT('e', "edit", &actions, N_("open an editor"), ACTION_EDIT),
  74         OPT_BIT(0, "get-color", &actions, N_("find the color configured: slot [default]"), ACTION_GET_COLOR),
  75         OPT_BIT(0, "get-colorbool", &actions, N_("find the color setting: slot [stdout-is-tty]"), ACTION_GET_COLORBOOL),
  76         OPT_GROUP(N_("Type")),
  77         OPT_BIT(0, "bool", &types, N_("value is \"true\" or \"false\""), TYPE_BOOL),
  78         OPT_BIT(0, "int", &types, N_("value is decimal number"), TYPE_INT),
  79         OPT_BIT(0, "bool-or-int", &types, N_("value is --bool or --int"), TYPE_BOOL_OR_INT),
  80         OPT_BIT(0, "path", &types, N_("value is a path (file or directory name)"), TYPE_PATH),
  81         OPT_GROUP(N_("Other")),
  82         OPT_BOOL('z', "null", &end_null, N_("terminate values with NUL byte")),
  83         OPT_BOOL(0, "name-only", &omit_values, N_("show variable names only")),
  84         OPT_BOOL(0, "includes", &respect_includes, N_("respect include directives on lookup")),
  85         OPT_BOOL(0, "show-origin", &show_origin, N_("show origin of config (file, standard input, blob, command line)")),
  86         OPT_END(),
  87 };
  88
  89 static void check_argc(int argc, int min, int max) {
  90         if (argc >= min && argc <= max)
  91                 return;
  92         error("wrong number of arguments");
  93         usage_with_options(builtin_config_usage, builtin_config_options);
  94 }
  95
  96 static void show_config_origin(struct strbuf *buf)
  97 {
  98         const char term = end_null ? '\0' : '\t';
  99
 100         strbuf_addstr(buf, current_config_origin_type());
 101         strbuf_addch(buf, ':');
 102         if (end_null)
 103                 strbuf_addstr(buf, current_config_name());
 104         else
 105                 quote_c_style(current_config_name(), buf, NULL, 0);
 106         strbuf_addch(buf, term);
 107 }
 108
 109 static int show_all_config(const char *key_, const char *value_, void *cb)
 110 {
 111         if (show_origin) {
 112                 struct strbuf buf = STRBUF_INIT;
 113                 show_config_origin(&buf);
 114                 /* Use fwrite as "buf" can contain \0's if "end_null" is set. */
 115                 fwrite(buf.buf, 1, buf.len, stdout);
 116                 strbuf_release(&buf);
 117         }
 118         if (!omit_values && value_)
 119                 printf("%s%c%s%c", key_, delim, value_, term);
 120         else
 121                 printf("%s%c", key_, term);
 122         return 0;
 123 }
 124
 125 struct strbuf_list {
 126         struct strbuf *items;
 127         int nr;
 128         int alloc;
 129 };
 130
 131 static int format_config(struct strbuf *buf, const char *key_, const char *value_)
 132 {
 133         if (show_origin)
 134                 show_config_origin(buf);
 135         if (show_keys)
 136                 strbuf_addstr(buf, key_);
 137         if (!omit_values) {
 138                 if (show_keys)
 139                         strbuf_addch(buf, key_delim);
 140
 141                 if (types == TYPE_INT)
 142                         strbuf_addf(buf, "%"PRId64,
 143                                     git_config_int64(key_, value_ ? value_ : ""));
 144                 else if (types == TYPE_BOOL)
 145                         strbuf_addstr(buf, git_config_bool(key_, value_) ?
 146                                       "true" : "false");
 147                 else if (types == TYPE_BOOL_OR_INT) {
 148                         int is_bool, v;
 149                         v = git_config_bool_or_int(key_, value_, &is_bool);
 150                         if (is_bool)
 151                                 strbuf_addstr(buf, v ? "true" : "false");
 152                         else
 153                                 strbuf_addf(buf, "%d", v);
 154                 } else if (types == TYPE_PATH) {
 155                         const char *v;
 156                         if (git_config_pathname(&v, key_, value_) < 0)
 157                                 return -1;
 158                         strbuf_addstr(buf, v);
 159                         free((char *)v);
 160                 } else if (value_) {
 161                         strbuf_addstr(buf, value_);
 162                 } else {
 163                         /* Just show the key name; back out delimiter */
 164                         if (show_keys)
 165                                 strbuf_setlen(buf, buf->len - 1);
 166                 }
 167         }
 168         strbuf_addch(buf, term);
 169         return 0;
 170 }
 171
 172 static int collect_config(const char *key_, const char *value_, void *cb)
 173 {
 174         struct strbuf_list *values = cb;
 175
 176         if (!use_key_regexp && strcmp(key_, key))
 177                 return 0;
 178         if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
 179                 return 0;
 180         if (regexp != NULL &&
 181             (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
 182                 return 0;
 183
 184         ALLOC_GROW(values->items, values->nr + 1, values->alloc);
 185         strbuf_init(&values->items[values->nr], 0);
 186
 187         return format_config(&values->items[values->nr++], key_, value_);
 188 }
 189
 190 static int get_value(const char *key_, const char *regex_)
 191 {
 192         int ret = CONFIG_GENERIC_ERROR;
 193         struct strbuf_list values = {NULL};
 194         int i;
 195
 196         if (use_key_regexp) {
 197                 char *tl;
 198
 199                 /*
 200                  * NEEDSWORK: this naive pattern lowercasing obviously does not
 201                  * work for more complex patterns like "^[^.]*Foo.*bar".
 202                  * Perhaps we should deprecate this altogether someday.
 203                  */
 204
 205                 key = xstrdup(key_);
 206                 for (tl = key + strlen(key) - 1;
 207                      tl >= key && *tl != '.';
 208                      tl--)
 209                         *tl = tolower(*tl);
 210                 for (tl = key; *tl && *tl != '.'; tl++)
 211                         *tl = tolower(*tl);
 212
 213                 key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
 214                 if (regcomp(key_regexp, key, REG_EXTENDED)) {
 215                         error("invalid key pattern: %s", key_);
 216                         free(key_regexp);
 217                         key_regexp = NULL;
 218                         ret = CONFIG_INVALID_PATTERN;
 219                         goto free_strings;
 220                 }
 221         } else {
 222                 if (git_config_parse_key(key_, &key, NULL)) {
 223                         ret = CONFIG_INVALID_KEY;
 224                         goto free_strings;
 225                 }
 226         }
 227
 228         if (regex_) {
 229                 if (regex_[0] == '!') {
 230                         do_not_match = 1;
 231                         regex_++;
 232                 }
 233
 234                 regexp = (regex_t*)xmalloc(sizeof(regex_t));
 235                 if (regcomp(regexp, regex_, REG_EXTENDED)) {
 236                         error("invalid pattern: %s", regex_);
 237                         free(regexp);
 238                         regexp = NULL;
 239                         ret = CONFIG_INVALID_PATTERN;
 240                         goto free_strings;
 241                 }
 242         }
 243
 244         git_config_with_options(collect_config, &values,
 245                                 &given_config_source, respect_includes);
 246
 247         ret = !values.nr;
 248
 249         for (i = 0; i < values.nr; i++) {
 250                 struct strbuf *buf = values.items + i;
 251                 if (do_all || i == values.nr - 1)
 252                         fwrite(buf->buf, 1, buf->len, stdout);
 253                 strbuf_release(buf);
 254         }
 255         free(values.items);
 256
 257 free_strings:
 258         free(key);
 259         if (key_regexp) {
 260                 regfree(key_regexp);
 261                 free(key_regexp);
 262         }
 263         if (regexp) {
 264                 regfree(regexp);
 265                 free(regexp);
 266         }
 267
 268         return ret;
 269 }
 270
 271 static char *normalize_value(const char *key, const char *value)
 272 {
 273         if (!value)
 274                 return NULL;
 275
 276         if (types == 0 || types == TYPE_PATH)
 277                 /*
 278                  * We don't do normalization for TYPE_PATH here: If
 279                  * the path is like ~/foobar/, we prefer to store
 280                  * "~/foobar/" in the config file, and to expand the ~
 281                  * when retrieving the value.
 282                  */
 283                 return xstrdup(value);
 284         if (types == TYPE_INT)
 285                 return xstrfmt("%"PRId64, git_config_int64(key, value));
 286         if (types == TYPE_BOOL)
 287                 return xstrdup(git_config_bool(key, value) ?  "true" : "false");
 288         if (types == TYPE_BOOL_OR_INT) {
 289                 int is_bool, v;
 290                 v = git_config_bool_or_int(key, value, &is_bool);
 291                 if (!is_bool)
 292                         return xstrfmt("%d", v);
 293                 else
 294                         return xstrdup(v ? "true" : "false");
 295         }
 296
 297         die("BUG: cannot normalize type %d", types);
 298 }
 299
 300 static int get_color_found;
 301 static const char *get_color_slot;
 302 static const char *get_colorbool_slot;
 303 static char parsed_color[COLOR_MAXLEN];
 304
 305 static int git_get_color_config(const char *var, const char *value, void *cb)
 306 {
 307         if (!strcmp(var, get_color_slot)) {
 308                 if (!value)
 309                         config_error_nonbool(var);
 310                 if (color_parse(value, parsed_color) < 0)
 311                         return -1;
 312                 get_color_found = 1;
 313         }
 314         return 0;
 315 }
 316
 317 static void get_color(const char *var, const char *def_color)
 318 {
 319         get_color_slot = var;
 320         get_color_found = 0;
 321         parsed_color[0] = '\0';
 322         git_config_with_options(git_get_color_config, NULL,
 323                                 &given_config_source, respect_includes);
 324
 325         if (!get_color_found && def_color) {
 326                 if (color_parse(def_color, parsed_color) < 0)
 327                         die(_("unable to parse default color value"));
 328         }
 329
 330         fputs(parsed_color, stdout);
 331 }
 332
 333 static int get_colorbool_found;
 334 static int get_diff_color_found;
 335 static int get_color_ui_found;
 336 static int git_get_colorbool_config(const char *var, const char *value,
 337                 void *cb)
 338 {
 339         if (!strcmp(var, get_colorbool_slot))
 340                 get_colorbool_found = git_config_colorbool(var, value);
 341         else if (!strcmp(var, "diff.color"))
 342                 get_diff_color_found = git_config_colorbool(var, value);
 343         else if (!strcmp(var, "color.ui"))
 344                 get_color_ui_found = git_config_colorbool(var, value);
 345         return 0;
 346 }
 347
 348 static int get_colorbool(const char *var, int print)
 349 {
 350         get_colorbool_slot = var;
 351         get_colorbool_found = -1;
 352         get_diff_color_found = -1;
 353         get_color_ui_found = -1;
 354         git_config_with_options(git_get_colorbool_config, NULL,
 355                                 &given_config_source, respect_includes);
 356
 357         if (get_colorbool_found < 0) {
 358                 if (!strcmp(get_colorbool_slot, "color.diff"))
 359                         get_colorbool_found = get_diff_color_found;
 360                 if (get_colorbool_found < 0)
 361                         get_colorbool_found = get_color_ui_found;
 362         }
 363
 364         if (get_colorbool_found < 0)
 365                 /* default value if none found in config */
 366                 get_colorbool_found = GIT_COLOR_AUTO;
 367
 368         get_colorbool_found = want_color(get_colorbool_found);
 369
 370         if (print) {
 371                 printf("%s\n", get_colorbool_found ? "true" : "false");
 372                 return 0;
 373         } else
 374                 return get_colorbool_found ? 0 : 1;
 375 }
 376
 377 static void check_write(void)
 378 {
 379         if (!given_config_source.file && !startup_info->have_repository)
 380                 die("not in a git directory");
 381
 382         if (given_config_source.use_stdin)
 383                 die("writing to stdin is not supported");
 384
 385         if (given_config_source.blob)
 386                 die("writing config blobs is not supported");
 387 }
 388
 389 struct urlmatch_current_candidate_value {
 390         char value_is_null;
 391         struct strbuf value;
 392 };
 393
 394 static int urlmatch_collect_fn(const char *var, const char *value, void *cb)
 395 {
 396         struct string_list *values = cb;
 397         struct string_list_item *item = string_list_insert(values, var);
 398         struct urlmatch_current_candidate_value *matched = item->util;
 399
 400         if (!matched) {
 401                 matched = xmalloc(sizeof(*matched));
 402                 strbuf_init(&matched->value, 0);
 403                 item->util = matched;
 404         } else {
 405                 strbuf_reset(&matched->value);
 406         }
 407
 408         if (value) {
 409                 strbuf_addstr(&matched->value, value);
 410                 matched->value_is_null = 0;
 411         } else {
 412                 matched->value_is_null = 1;
 413         }
 414         return 0;
 415 }
 416
 417 static int get_urlmatch(const char *var, const char *url)
 418 {
 419         int ret;
 420         char *section_tail;
 421         struct string_list_item *item;
 422         struct urlmatch_config config = { STRING_LIST_INIT_DUP };
 423         struct string_list values = STRING_LIST_INIT_DUP;
 424
 425         config.collect_fn = urlmatch_collect_fn;
 426         config.cascade_fn = NULL;
 427         config.cb = &values;
 428
 429         if (!url_normalize(url, &config.url))
 430                 die("%s", config.url.err);
 431
 432         config.section = xstrdup_tolower(var);
 433         section_tail = strchr(config.section, '.');
 434         if (section_tail) {
 435                 *section_tail = '\0';
 436                 config.key = section_tail + 1;
 437                 show_keys = 0;
 438         } else {
 439                 config.key = NULL;
 440                 show_keys = 1;
 441         }
 442
 443         git_config_with_options(urlmatch_config_entry, &config,
 444                                 &given_config_source, respect_includes);
 445
 446         ret = !values.nr;
 447
 448         for_each_string_list_item(item, &values) {
 449                 struct urlmatch_current_candidate_value *matched = item->util;
 450                 struct strbuf buf = STRBUF_INIT;
 451
 452                 format_config(&buf, item->string,
 453                               matched->value_is_null ? NULL : matched->value.buf);
 454                 fwrite(buf.buf, 1, buf.len, stdout);
 455                 strbuf_release(&buf);
 456
 457                 strbuf_release(&matched->value);
 458         }
 459         string_list_clear(&config.vars, 1);
 460         string_list_clear(&values, 1);
 461         free(config.url.url);
 462
 463         free((void *)config.section);
 464         return ret;
 465 }
 466
 467 static char *default_user_config(void)
 468 {
 469         struct strbuf buf = STRBUF_INIT;
 470         strbuf_addf(&buf,
 471                     _("# This is Git's per-user configuration file.\n"
 472                       "[user]\n"
 473                       "# Please adapt and uncomment the following lines:\n"
 474                       "#        name = %s\n"
 475                       "#        email = %s\n"),
 476                     ident_default_name(),
 477                     ident_default_email());
 478         return strbuf_detach(&buf, NULL);
 479 }
 480
 481 int cmd_config(int argc, const char **argv, const char *prefix)
 482 {
 483         int nongit = !startup_info->have_repository;
 484         char *value;
 485
 486         given_config_source.file = getenv(CONFIG_ENVIRONMENT);
 487
 488         argc = parse_options(argc, argv, prefix, builtin_config_options,
 489                              builtin_config_usage,
 490                              PARSE_OPT_STOP_AT_NON_OPTION);
 491
 492         if (use_global_config + use_system_config + use_local_config +
 493             !!given_config_source.file + !!given_config_source.blob > 1) {
 494                 error("only one config file at a time.");
 495                 usage_with_options(builtin_config_usage, builtin_config_options);
 496         }
 497
 498         if (given_config_source.file &&
 499                         !strcmp(given_config_source.file, "-")) {
 500                 given_config_source.file = NULL;
 501                 given_config_source.use_stdin = 1;
 502         }
 503
 504         if (use_global_config) {
 505                 char *user_config = expand_user_path("~/.gitconfig");
 506                 char *xdg_config = xdg_config_home("config");
 507
 508                 if (!user_config)
 509                         /*
 510                          * It is unknown if HOME/.gitconfig exists, so
 511                          * we do not know if we should write to XDG
 512                          * location; error out even if XDG_CONFIG_HOME
 513                          * is set and points at a sane location.
 514                          */
 515                         die("$HOME not set");
 516
 517                 if (access_or_warn(user_config, R_OK, 0) &&
 518                     xdg_config && !access_or_warn(xdg_config, R_OK, 0))
 519                         given_config_source.file = xdg_config;
 520                 else
 521                         given_config_source.file = user_config;
 522         }
 523         else if (use_system_config)
 524                 given_config_source.file = git_etc_gitconfig();
 525         else if (use_local_config)
 526                 given_config_source.file = git_pathdup("config");
 527         else if (given_config_source.file) {
 528                 if (!is_absolute_path(given_config_source.file) && prefix)
 529                         given_config_source.file =
 530                                 xstrdup(prefix_filename(prefix,
 531                                                         strlen(prefix),
 532                                                         given_config_source.file));
 533         }
 534
 535         if (respect_includes == -1)
 536                 respect_includes = !given_config_source.file;
 537
 538         if (end_null) {
 539                 term = '\0';
 540                 delim = '\n';
 541                 key_delim = '\n';
 542         }
 543
 544         if (HAS_MULTI_BITS(types)) {
 545                 error("only one type at a time.");
 546                 usage_with_options(builtin_config_usage, builtin_config_options);
 547         }
 548
 549         if ((actions & (ACTION_GET_COLOR|ACTION_GET_COLORBOOL)) && types) {
 550                 error("--get-color and variable type are incoherent");
 551                 usage_with_options(builtin_config_usage, builtin_config_options);
 552         }
 553
 554         if (HAS_MULTI_BITS(actions)) {
 555                 error("only one action at a time.");
 556                 usage_with_options(builtin_config_usage, builtin_config_options);
 557         }
 558         if (actions == 0)
 559                 switch (argc) {
 560                 case 1: actions = ACTION_GET; break;
 561                 case 2: actions = ACTION_SET; break;
 562                 case 3: actions = ACTION_SET_ALL; break;
 563                 default:
 564                         usage_with_options(builtin_config_usage, builtin_config_options);
 565                 }
 566         if (omit_values &&
 567             !(actions == ACTION_LIST || actions == ACTION_GET_REGEXP)) {
 568                 error("--name-only is only applicable to --list or --get-regexp");
 569                 usage_with_options(builtin_config_usage, builtin_config_options);
 570         }
 571
 572         if (show_origin && !(actions &
 573                 (ACTION_GET|ACTION_GET_ALL|ACTION_GET_REGEXP|ACTION_LIST))) {
 574                 error("--show-origin is only applicable to --get, --get-all, "
 575                           "--get-regexp, and --list.");
 576                 usage_with_options(builtin_config_usage, builtin_config_options);
 577         }
 578
 579         if (actions == ACTION_LIST) {
 580                 check_argc(argc, 0, 0);
 581                 if (git_config_with_options(show_all_config, NULL,
 582                                             &given_config_source,
 583                                             respect_includes) < 0) {
 584                         if (given_config_source.file)
 585                                 die_errno("unable to read config file '%s'",
 586                                           given_config_source.file);
 587                         else
 588                                 die("error processing config file(s)");
 589                 }
 590         }
 591         else if (actions == ACTION_EDIT) {
 592                 char *config_file;
 593
 594                 check_argc(argc, 0, 0);
 595                 if (!given_config_source.file && nongit)
 596                         die("not in a git directory");
 597                 if (given_config_source.use_stdin)
 598                         die("editing stdin is not supported");
 599                 if (given_config_source.blob)
 600                         die("editing blobs is not supported");
 601                 git_config(git_default_config, NULL);
 602                 config_file = xstrdup(given_config_source.file ?
 603                                       given_config_source.file : git_path("config"));
 604                 if (use_global_config) {
 605                         int fd = open(config_file, O_CREAT | O_EXCL | O_WRONLY, 0666);
 606                         if (fd >= 0) {
 607                                 char *content = default_user_config();
 608                                 write_str_in_full(fd, content);
 609                                 free(content);
 610                                 close(fd);
 611                         }
 612                         else if (errno != EEXIST)
 613                                 die_errno(_("cannot create configuration file %s"), config_file);
 614                 }
 615                 launch_editor(config_file, NULL, NULL);
 616                 free(config_file);
 617         }
 618         else if (actions == ACTION_SET) {
 619                 int ret;
 620                 check_write();
 621                 check_argc(argc, 2, 2);
 622                 value = normalize_value(argv[0], argv[1]);
 623                 ret = git_config_set_in_file_gently(given_config_source.file, argv[0], value);
 624                 if (ret == CONFIG_NOTHING_SET)
 625                         error(_("cannot overwrite multiple values with a single value\n"
 626                         "       Use a regexp, --add or --replace-all to change %s."), argv[0]);
 627                 return ret;
 628         }
 629         else if (actions == ACTION_SET_ALL) {
 630                 check_write();
 631                 check_argc(argc, 2, 3);
 632                 value = normalize_value(argv[0], argv[1]);
 633                 return git_config_set_multivar_in_file_gently(given_config_source.file,
 634                                                               argv[0], value, argv[2], 0);
 635         }
 636         else if (actions == ACTION_ADD) {
 637                 check_write();
 638                 check_argc(argc, 2, 2);
 639                 value = normalize_value(argv[0], argv[1]);
 640                 return git_config_set_multivar_in_file_gently(given_config_source.file,
 641                                                               argv[0], value,
 642                                                               CONFIG_REGEX_NONE, 0);
 643         }
 644         else if (actions == ACTION_REPLACE_ALL) {
 645                 check_write();
 646                 check_argc(argc, 2, 3);
 647                 value = normalize_value(argv[0], argv[1]);
 648                 return git_config_set_multivar_in_file_gently(given_config_source.file,
 649                                                               argv[0], value, argv[2], 1);
 650         }
 651         else if (actions == ACTION_GET) {
 652                 check_argc(argc, 1, 2);
 653                 return get_value(argv[0], argv[1]);
 654         }
 655         else if (actions == ACTION_GET_ALL) {
 656                 do_all = 1;
 657                 check_argc(argc, 1, 2);
 658                 return get_value(argv[0], argv[1]);
 659         }
 660         else if (actions == ACTION_GET_REGEXP) {
 661                 show_keys = 1;
 662                 use_key_regexp = 1;
 663                 do_all = 1;
 664                 check_argc(argc, 1, 2);
 665                 return get_value(argv[0], argv[1]);
 666         }
 667         else if (actions == ACTION_GET_URLMATCH) {
 668                 check_argc(argc, 2, 2);
 669                 return get_urlmatch(argv[0], argv[1]);
 670         }
 671         else if (actions == ACTION_UNSET) {
 672                 check_write();
 673                 check_argc(argc, 1, 2);
 674                 if (argc == 2)
 675                         return git_config_set_multivar_in_file_gently(given_config_source.file,
 676                                                                       argv[0], NULL, argv[1], 0);
 677                 else
 678                         return git_config_set_in_file_gently(given_config_source.file,
 679                                                              argv[0], NULL);
 680         }
 681         else if (actions == ACTION_UNSET_ALL) {
 682                 check_write();
 683                 check_argc(argc, 1, 2);
 684                 return git_config_set_multivar_in_file_gently(given_config_source.file,
 685                                                               argv[0], NULL, argv[1], 1);
 686         }
 687         else if (actions == ACTION_RENAME_SECTION) {
 688                 int ret;
 689                 check_write();
 690                 check_argc(argc, 2, 2);
 691                 ret = git_config_rename_section_in_file(given_config_source.file,
 692                                                         argv[0], argv[1]);
 693                 if (ret < 0)
 694                         return ret;
 695                 if (ret == 0)
 696                         die("No such section!");
 697         }
 698         else if (actions == ACTION_REMOVE_SECTION) {
 699                 int ret;
 700                 check_write();
 701                 check_argc(argc, 1, 1);
 702                 ret = git_config_rename_section_in_file(given_config_source.file,
 703                                                         argv[0], NULL);
 704                 if (ret < 0)
 705                         return ret;
 706                 if (ret == 0)
 707                         die("No such section!");
 708         }
 709         else if (actions == ACTION_GET_COLOR) {
 710                 check_argc(argc, 1, 2);
 711                 get_color(argv[0], argv[1]);
 712         }
 713         else if (actions == ACTION_GET_COLORBOOL) {
 714                 check_argc(argc, 1, 2);
 715                 if (argc == 2)
 716                         color_stdout_is_tty = git_config_bool("command line", argv[1]);
 717                 return get_colorbool(argv[0], argc == 2);
 718         }
 719
 720         return 0;
 721 }