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