git.oblomov.eu Git - git/blob - 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_opt = -1;
  30 static struct config_options config_options;
  31 static int show_origin;
  32
  33 #define ACTION_GET (1<<0)
  34 #define ACTION_GET_ALL (1<<1)
  35 #define ACTION_GET_REGEXP (1<<2)
  36 #define ACTION_REPLACE_ALL (1<<3)
  37 #define ACTION_ADD (1<<4)
  38 #define ACTION_UNSET (1<<5)
  39 #define ACTION_UNSET_ALL (1<<6)
  40 #define ACTION_RENAME_SECTION (1<<7)
  41 #define ACTION_REMOVE_SECTION (1<<8)
  42 #define ACTION_LIST (1<<9)
  43 #define ACTION_EDIT (1<<10)
  44 #define ACTION_SET (1<<11)
  45 #define ACTION_SET_ALL (1<<12)
  46 #define ACTION_GET_COLOR (1<<13)
  47 #define ACTION_GET_COLORBOOL (1<<14)
  48 #define ACTION_GET_URLMATCH (1<<15)
  49
  50 #define TYPE_BOOL (1<<0)
  51 #define TYPE_INT (1<<1)
  52 #define TYPE_BOOL_OR_INT (1<<2)
  53 #define TYPE_PATH (1<<3)
  54
  55 static struct option builtin_config_options[] = {
  56         OPT_GROUP(N_("Config file location")),
  57         OPT_BOOL(0, "global", &use_global_config, N_("use global config file")),
  58         OPT_BOOL(0, "system", &use_system_config, N_("use system config file")),
  59         OPT_BOOL(0, "local", &use_local_config, N_("use repository config file")),
  60         OPT_STRING('f', "file", &given_config_source.file, N_("file"), N_("use given config file")),
  61         OPT_STRING(0, "blob", &given_config_source.blob, N_("blob-id"), N_("read config from given blob object")),
  62         OPT_GROUP(N_("Action")),
  63         OPT_BIT(0, "get", &actions, N_("get value: name [value-regex]"), ACTION_GET),
  64         OPT_BIT(0, "get-all", &actions, N_("get all values: key [value-regex]"), ACTION_GET_ALL),
  65         OPT_BIT(0, "get-regexp", &actions, N_("get values for regexp: name-regex [value-regex]"), ACTION_GET_REGEXP),
  66         OPT_BIT(0, "get-urlmatch", &actions, N_("get value specific for the URL: section[.var] URL"), ACTION_GET_URLMATCH),
  67         OPT_BIT(0, "replace-all", &actions, N_("replace all matching variables: name value [value_regex]"), ACTION_REPLACE_ALL),
  68         OPT_BIT(0, "add", &actions, N_("add a new variable: name value"), ACTION_ADD),
  69         OPT_BIT(0, "unset", &actions, N_("remove a variable: name [value-regex]"), ACTION_UNSET),
  70         OPT_BIT(0, "unset-all", &actions, N_("remove all matches: name [value-regex]"), ACTION_UNSET_ALL),
  71         OPT_BIT(0, "rename-section", &actions, N_("rename section: old-name new-name"), ACTION_RENAME_SECTION),
  72         OPT_BIT(0, "remove-section", &actions, N_("remove a section: name"), ACTION_REMOVE_SECTION),
  73         OPT_BIT('l', "list", &actions, N_("list all"), ACTION_LIST),
  74         OPT_BIT('e', "edit", &actions, N_("open an editor"), ACTION_EDIT),
  75         OPT_BIT(0, "get-color", &actions, N_("find the color configured: slot [default]"), ACTION_GET_COLOR),
  76         OPT_BIT(0, "get-colorbool", &actions, N_("find the color setting: slot [stdout-is-tty]"), ACTION_GET_COLORBOOL),
  77         OPT_GROUP(N_("Type")),
  78         OPT_BIT(0, "bool", &types, N_("value is \"true\" or \"false\""), TYPE_BOOL),
  79         OPT_BIT(0, "int", &types, N_("value is decimal number"), TYPE_INT),
  80         OPT_BIT(0, "bool-or-int", &types, N_("value is --bool or --int"), TYPE_BOOL_OR_INT),
  81         OPT_BIT(0, "path", &types, N_("value is a path (file or directory name)"), TYPE_PATH),
  82         OPT_GROUP(N_("Other")),
  83         OPT_BOOL('z', "null", &end_null, N_("terminate values with NUL byte")),
  84         OPT_BOOL(0, "name-only", &omit_values, N_("show variable names only")),
  85         OPT_BOOL(0, "includes", &respect_includes_opt, N_("respect include directives on lookup")),
  86         OPT_BOOL(0, "show-origin", &show_origin, N_("show origin of config (file, standard input, blob, command line)")),
  87         OPT_END(),
  88 };
  89
  90 static void check_argc(int argc, int min, int max) {
  91         if (argc >= min && argc <= max)
  92                 return;
  93         error("wrong number of arguments");
  94         usage_with_options(builtin_config_usage, builtin_config_options);
  95 }
  96
  97 static void show_config_origin(struct strbuf *buf)
  98 {
  99         const char term = end_null ? '\0' : '\t';
 100
 101         strbuf_addstr(buf, current_config_origin_type());
 102         strbuf_addch(buf, ':');
 103         if (end_null)
 104                 strbuf_addstr(buf, current_config_name());
 105         else
 106                 quote_c_style(current_config_name(), buf, NULL, 0);
 107         strbuf_addch(buf, term);
 108 }
 109
 110 static int show_all_config(const char *key_, const char *value_, void *cb)
 111 {
 112         if (show_origin) {
 113                 struct strbuf buf = STRBUF_INIT;
 114                 show_config_origin(&buf);
 115                 /* Use fwrite as "buf" can contain \0's if "end_null" is set. */
 116                 fwrite(buf.buf, 1, buf.len, stdout);
 117                 strbuf_release(&buf);
 118         }
 119         if (!omit_values && value_)
 120                 printf("%s%c%s%c", key_, delim, value_, term);
 121         else
 122                 printf("%s%c", key_, term);
 123         return 0;
 124 }
 125
 126 struct strbuf_list {
 127         struct strbuf *items;
 128         int nr;
 129         int alloc;
 130 };
 131
 132 static int format_config(struct strbuf *buf, const char *key_, const char *value_)
 133 {
 134         if (show_origin)
 135                 show_config_origin(buf);
 136         if (show_keys)
 137                 strbuf_addstr(buf, key_);
 138         if (!omit_values) {
 139                 if (show_keys)
 140                         strbuf_addch(buf, key_delim);
 141
 142                 if (types == TYPE_INT)
 143                         strbuf_addf(buf, "%"PRId64,
 144                                     git_config_int64(key_, value_ ? value_ : ""));
 145                 else if (types == TYPE_BOOL)
 146                         strbuf_addstr(buf, git_config_bool(key_, value_) ?
 147                                       "true" : "false");
 148                 else if (types == TYPE_BOOL_OR_INT) {
 149                         int is_bool, v;
 150                         v = git_config_bool_or_int(key_, value_, &is_bool);
 151                         if (is_bool)
 152                                 strbuf_addstr(buf, v ? "true" : "false");
 153                         else
 154                                 strbuf_addf(buf, "%d", v);
 155                 } else if (types == TYPE_PATH) {
 156                         const char *v;
 157                         if (git_config_pathname(&v, key_, value_) < 0)
 158                                 return -1;
 159                         strbuf_addstr(buf, v);
 160                         free((char *)v);
 161                 } else if (value_) {
 162                         strbuf_addstr(buf, value_);
 163                 } else {
 164                         /* Just show the key name; back out delimiter */
 165                         if (show_keys)
 166                                 strbuf_setlen(buf, buf->len - 1);
 167                 }
 168         }
 169         strbuf_addch(buf, term);
 170         return 0;
 171 }
 172
 173 static int collect_config(const char *key_, const char *value_, void *cb)
 174 {
 175         struct strbuf_list *values = cb;
 176
 177         if (!use_key_regexp && strcmp(key_, key))
 178                 return 0;
 179         if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
 180                 return 0;
 181         if (regexp != NULL &&
 182             (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
 183                 return 0;
 184
 185         ALLOC_GROW(values->items, values->nr + 1, values->alloc);
 186         strbuf_init(&values->items[values->nr], 0);
 187
 188         return format_config(&values->items[values->nr++], key_, value_);
 189 }
 190
 191 static int get_value(const char *key_, const char *regex_)
 192 {
 193         int ret = CONFIG_GENERIC_ERROR;
 194         struct strbuf_list values = {NULL};
 195         int i;
 196
 197         if (use_key_regexp) {
 198                 char *tl;
 199
 200                 /*
 201                  * NEEDSWORK: this naive pattern lowercasing obviously does not
 202                  * work for more complex patterns like "^[^.]*Foo.*bar".
 203                  * Perhaps we should deprecate this altogether someday.
 204                  */
 205
 206                 key = xstrdup(key_);
 207                 for (tl = key + strlen(key) - 1;
 208                      tl >= key && *tl != '.';
 209                      tl--)
 210                         *tl = tolower(*tl);
 211                 for (tl = key; *tl && *tl != '.'; tl++)
 212                         *tl = tolower(*tl);
 213
 214                 key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
 215                 if (regcomp(key_regexp, key, REG_EXTENDED)) {
 216                         error("invalid key pattern: %s", key_);
 217                         FREE_AND_NULL(key_regexp);
 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_AND_NULL(regexp);
 238                         ret = CONFIG_INVALID_PATTERN;
 239                         goto free_strings;
 240                 }
 241         }
 242
 243         git_config_with_options(collect_config, &values,
 244                                 &given_config_source, &config_options);
 245
 246         ret = !values.nr;
 247
 248         for (i = 0; i < values.nr; i++) {
 249                 struct strbuf *buf = values.items + i;
 250                 if (do_all || i == values.nr - 1)
 251                         fwrite(buf->buf, 1, buf->len, stdout);
 252                 strbuf_release(buf);
 253         }
 254         free(values.items);
 255
 256 free_strings:
 257         free(key);
 258         if (key_regexp) {
 259                 regfree(key_regexp);
 260                 free(key_regexp);
 261         }
 262         if (regexp) {
 263                 regfree(regexp);
 264                 free(regexp);
 265         }
 266
 267         return ret;
 268 }
 269
 270 static char *normalize_value(const char *key, const char *value)
 271 {
 272         if (!value)
 273                 return NULL;
 274
 275         if (types == 0 || types == TYPE_PATH)
 276                 /*
 277                  * We don't do normalization for TYPE_PATH here: If
 278                  * the path is like ~/foobar/, we prefer to store
 279                  * "~/foobar/" in the config file, and to expand the ~
 280                  * when retrieving the value.
 281                  */
 282                 return xstrdup(value);
 283         if (types == TYPE_INT)
 284                 return xstrfmt("%"PRId64, git_config_int64(key, value));
 285         if (types == TYPE_BOOL)
 286                 return xstrdup(git_config_bool(key, value) ?  "true" : "false");
 287         if (types == TYPE_BOOL_OR_INT) {
 288                 int is_bool, v;
 289                 v = git_config_bool_or_int(key, value, &is_bool);
 290                 if (!is_bool)
 291                         return xstrfmt("%d", v);
 292                 else
 293                         return xstrdup(v ? "true" : "false");
 294         }
 295
 296         die("BUG: cannot normalize type %d", types);
 297 }
 298
 299 static int get_color_found;
 300 static const char *get_color_slot;
 301 static const char *get_colorbool_slot;
 302 static char parsed_color[COLOR_MAXLEN];
 303
 304 static int git_get_color_config(const char *var, const char *value, void *cb)
 305 {
 306         if (!strcmp(var, get_color_slot)) {
 307                 if (!value)
 308                         config_error_nonbool(var);
 309                 if (color_parse(value, parsed_color) < 0)
 310                         return -1;
 311                 get_color_found = 1;
 312         }
 313         return 0;
 314 }
 315
 316 static void get_color(const char *var, const char *def_color)
 317 {
 318         get_color_slot = var;
 319         get_color_found = 0;
 320         parsed_color[0] = '\0';
 321         git_config_with_options(git_get_color_config, NULL,
 322                                 &given_config_source, &config_options);
 323
 324         if (!get_color_found && def_color) {
 325                 if (color_parse(def_color, parsed_color) < 0)
 326                         die(_("unable to parse default color value"));
 327         }
 328
 329         fputs(parsed_color, stdout);
 330 }
 331
 332 static int get_colorbool_found;
 333 static int get_diff_color_found;
 334 static int get_color_ui_found;
 335 static int git_get_colorbool_config(const char *var, const char *value,
 336                 void *cb)
 337 {
 338         if (!strcmp(var, get_colorbool_slot))
 339                 get_colorbool_found = git_config_colorbool(var, value);
 340         else if (!strcmp(var, "diff.color"))
 341                 get_diff_color_found = git_config_colorbool(var, value);
 342         else if (!strcmp(var, "color.ui"))
 343                 get_color_ui_found = git_config_colorbool(var, value);
 344         return 0;
 345 }
 346
 347 static int get_colorbool(const char *var, int print)
 348 {
 349         get_colorbool_slot = var;
 350         get_colorbool_found = -1;
 351         get_diff_color_found = -1;
 352         get_color_ui_found = -1;
 353         git_config_with_options(git_get_colorbool_config, NULL,
 354                                 &given_config_source, &config_options);
 355
 356         if (get_colorbool_found < 0) {
 357                 if (!strcmp(get_colorbool_slot, "color.diff"))
 358                         get_colorbool_found = get_diff_color_found;
 359                 if (get_colorbool_found < 0)
 360                         get_colorbool_found = get_color_ui_found;
 361         }
 362
 363         if (get_colorbool_found < 0)
 364                 /* default value if none found in config */
 365                 get_colorbool_found = GIT_COLOR_AUTO;
 366
 367         get_colorbool_found = want_color(get_colorbool_found);
 368
 369         if (print) {
 370                 printf("%s\n", get_colorbool_found ? "true" : "false");
 371                 return 0;
 372         } else
 373                 return get_colorbool_found ? 0 : 1;
 374 }
 375
 376 static void check_write(void)
 377 {
 378         if (!given_config_source.file && !startup_info->have_repository)
 379                 die("not in a git directory");
 380
 381         if (given_config_source.use_stdin)
 382                 die("writing to stdin is not supported");
 383
 384         if (given_config_source.blob)
 385                 die("writing config blobs is not supported");
 386 }
 387
 388 struct urlmatch_current_candidate_value {
 389         char value_is_null;
 390         struct strbuf value;
 391 };
 392
 393 static int urlmatch_collect_fn(const char *var, const char *value, void *cb)
 394 {
 395         struct string_list *values = cb;
 396         struct string_list_item *item = string_list_insert(values, var);
 397         struct urlmatch_current_candidate_value *matched = item->util;
 398
 399         if (!matched) {
 400                 matched = xmalloc(sizeof(*matched));
 401                 strbuf_init(&matched->value, 0);
 402                 item->util = matched;
 403         } else {
 404                 strbuf_reset(&matched->value);
 405         }
 406
 407         if (value) {
 408                 strbuf_addstr(&matched->value, value);
 409                 matched->value_is_null = 0;
 410         } else {
 411                 matched->value_is_null = 1;
 412         }
 413         return 0;
 414 }
 415
 416 static int get_urlmatch(const char *var, const char *url)
 417 {
 418         int ret;
 419         char *section_tail;
 420         struct string_list_item *item;
 421         struct urlmatch_config config = { STRING_LIST_INIT_DUP };
 422         struct string_list values = STRING_LIST_INIT_DUP;
 423
 424         config.collect_fn = urlmatch_collect_fn;
 425         config.cascade_fn = NULL;
 426         config.cb = &values;
 427
 428         if (!url_normalize(url, &config.url))
 429                 die("%s", config.url.err);
 430
 431         config.section = xstrdup_tolower(var);
 432         section_tail = strchr(config.section, '.');
 433         if (section_tail) {
 434                 *section_tail = '\0';
 435                 config.key = section_tail + 1;
 436                 show_keys = 0;
 437         } else {
 438                 config.key = NULL;
 439                 show_keys = 1;
 440         }
 441
 442         git_config_with_options(urlmatch_config_entry, &config,
 443                                 &given_config_source, &config_options);
 444
 445         ret = !values.nr;
 446
 447         for_each_string_list_item(item, &values) {
 448                 struct urlmatch_current_candidate_value *matched = item->util;
 449                 struct strbuf buf = STRBUF_INIT;
 450
 451                 format_config(&buf, item->string,
 452                               matched->value_is_null ? NULL : matched->value.buf);
 453                 fwrite(buf.buf, 1, buf.len, stdout);
 454                 strbuf_release(&buf);
 455
 456                 strbuf_release(&matched->value);
 457         }
 458         string_list_clear(&config.vars, 1);
 459         string_list_clear(&values, 1);
 460         free(config.url.url);
 461
 462         free((void *)config.section);
 463         return ret;
 464 }
 465
 466 static char *default_user_config(void)
 467 {
 468         struct strbuf buf = STRBUF_INIT;
 469         strbuf_addf(&buf,
 470                     _("# This is Git's per-user configuration file.\n"
 471                       "[user]\n"
 472                       "# Please adapt and uncomment the following lines:\n"
 473                       "#        name = %s\n"
 474                       "#        email = %s\n"),
 475                     ident_default_name(),
 476                     ident_default_email());
 477         return strbuf_detach(&buf, NULL);
 478 }
 479
 480 int cmd_config(int argc, const char **argv, const char *prefix)
 481 {
 482         int nongit = !startup_info->have_repository;
 483         char *value;
 484
 485         given_config_source.file = getenv(CONFIG_ENVIRONMENT);
 486
 487         argc = parse_options(argc, argv, prefix, builtin_config_options,
 488                              builtin_config_usage,
 489                              PARSE_OPT_STOP_AT_NON_OPTION);
 490
 491         if (use_global_config + use_system_config + use_local_config +
 492             !!given_config_source.file + !!given_config_source.blob > 1) {
 493                 error("only one config file at a time.");
 494                 usage_with_options(builtin_config_usage, builtin_config_options);
 495         }
 496
 497         if (use_local_config && nongit)
 498                 die(_("--local can only be used inside a git repository"));
 499
 500         if (given_config_source.file &&
 501                         !strcmp(given_config_source.file, "-")) {
 502                 given_config_source.file = NULL;
 503                 given_config_source.use_stdin = 1;
 504         }
 505
 506         if (use_global_config) {
 507                 char *user_config = expand_user_path("~/.gitconfig", 0);
 508                 char *xdg_config = xdg_config_home("config");
 509
 510                 if (!user_config)
 511                         /*
 512                          * It is unknown if HOME/.gitconfig exists, so
 513                          * we do not know if we should write to XDG
 514                          * location; error out even if XDG_CONFIG_HOME
 515                          * is set and points at a sane location.
 516                          */
 517                         die("$HOME not set");
 518
 519                 if (access_or_warn(user_config, R_OK, 0) &&
 520                     xdg_config && !access_or_warn(xdg_config, R_OK, 0))
 521                         given_config_source.file = xdg_config;
 522                 else
 523                         given_config_source.file = user_config;
 524         }
 525         else if (use_system_config)
 526                 given_config_source.file = git_etc_gitconfig();
 527         else if (use_local_config)
 528                 given_config_source.file = git_pathdup("config");
 529         else if (given_config_source.file) {
 530                 if (!is_absolute_path(given_config_source.file) && prefix)
 531                         given_config_source.file =
 532                                 prefix_filename(prefix, given_config_source.file);
 533         }
 534
 535         if (respect_includes_opt == -1)
 536                 config_options.respect_includes = !given_config_source.file;
 537         else
 538                 config_options.respect_includes = respect_includes_opt;
 539
 540         if (end_null) {
 541                 term = '\0';
 542                 delim = '\n';
 543                 key_delim = '\n';
 544         }
 545
 546         if (HAS_MULTI_BITS(types)) {
 547                 error("only one type at a time.");
 548                 usage_with_options(builtin_config_usage, builtin_config_options);
 549         }
 550
 551         if ((actions & (ACTION_GET_COLOR|ACTION_GET_COLORBOOL)) && types) {
 552                 error("--get-color and variable type are incoherent");
 553                 usage_with_options(builtin_config_usage, builtin_config_options);
 554         }
 555
 556         if (HAS_MULTI_BITS(actions)) {
 557                 error("only one action at a time.");
 558                 usage_with_options(builtin_config_usage, builtin_config_options);
 559         }
 560         if (actions == 0)
 561                 switch (argc) {
 562                 case 1: actions = ACTION_GET; break;
 563                 case 2: actions = ACTION_SET; break;
 564                 case 3: actions = ACTION_SET_ALL; break;
 565                 default:
 566                         usage_with_options(builtin_config_usage, builtin_config_options);
 567                 }
 568         if (omit_values &&
 569             !(actions == ACTION_LIST || actions == ACTION_GET_REGEXP)) {
 570                 error("--name-only is only applicable to --list or --get-regexp");
 571                 usage_with_options(builtin_config_usage, builtin_config_options);
 572         }
 573
 574         if (show_origin && !(actions &
 575                 (ACTION_GET|ACTION_GET_ALL|ACTION_GET_REGEXP|ACTION_LIST))) {
 576                 error("--show-origin is only applicable to --get, --get-all, "
 577                           "--get-regexp, and --list.");
 578                 usage_with_options(builtin_config_usage, builtin_config_options);
 579         }
 580
 581         if (actions == ACTION_LIST) {
 582                 check_argc(argc, 0, 0);
 583                 if (git_config_with_options(show_all_config, NULL,
 584                                             &given_config_source,
 585                                             &config_options) < 0) {
 586                         if (given_config_source.file)
 587                                 die_errno("unable to read config file '%s'",
 588                                           given_config_source.file);
 589                         else
 590                                 die("error processing config file(s)");
 591                 }
 592         }
 593         else if (actions == ACTION_EDIT) {
 594                 char *config_file;
 595
 596                 check_argc(argc, 0, 0);
 597                 if (!given_config_source.file && nongit)
 598                         die("not in a git directory");
 599                 if (given_config_source.use_stdin)
 600                         die("editing stdin is not supported");
 601                 if (given_config_source.blob)
 602                         die("editing blobs is not supported");
 603                 git_config(git_default_config, NULL);
 604                 config_file = given_config_source.file ?
 605                                 xstrdup(given_config_source.file) :
 606                                 git_pathdup("config");
 607                 if (use_global_config) {
 608                         int fd = open(config_file, O_CREAT | O_EXCL | O_WRONLY, 0666);
 609                         if (fd >= 0) {
 610                                 char *content = default_user_config();
 611                                 write_str_in_full(fd, content);
 612                                 free(content);
 613                                 close(fd);
 614                         }
 615                         else if (errno != EEXIST)
 616                                 die_errno(_("cannot create configuration file %s"), config_file);
 617                 }
 618                 launch_editor(config_file, NULL, NULL);
 619                 free(config_file);
 620         }
 621         else if (actions == ACTION_SET) {
 622                 int ret;
 623                 check_write();
 624                 check_argc(argc, 2, 2);
 625                 value = normalize_value(argv[0], argv[1]);
 626                 ret = git_config_set_in_file_gently(given_config_source.file, argv[0], value);
 627                 if (ret == CONFIG_NOTHING_SET)
 628                         error(_("cannot overwrite multiple values with a single value\n"
 629                         "       Use a regexp, --add or --replace-all to change %s."), argv[0]);
 630                 return ret;
 631         }
 632         else if (actions == ACTION_SET_ALL) {
 633                 check_write();
 634                 check_argc(argc, 2, 3);
 635                 value = normalize_value(argv[0], argv[1]);
 636                 return git_config_set_multivar_in_file_gently(given_config_source.file,
 637                                                               argv[0], value, argv[2], 0);
 638         }
 639         else if (actions == ACTION_ADD) {
 640                 check_write();
 641                 check_argc(argc, 2, 2);
 642                 value = normalize_value(argv[0], argv[1]);
 643                 return git_config_set_multivar_in_file_gently(given_config_source.file,
 644                                                               argv[0], value,
 645                                                               CONFIG_REGEX_NONE, 0);
 646         }
 647         else if (actions == ACTION_REPLACE_ALL) {
 648                 check_write();
 649                 check_argc(argc, 2, 3);
 650                 value = normalize_value(argv[0], argv[1]);
 651                 return git_config_set_multivar_in_file_gently(given_config_source.file,
 652                                                               argv[0], value, argv[2], 1);
 653         }
 654         else if (actions == ACTION_GET) {
 655                 check_argc(argc, 1, 2);
 656                 return get_value(argv[0], argv[1]);
 657         }
 658         else if (actions == ACTION_GET_ALL) {
 659                 do_all = 1;
 660                 check_argc(argc, 1, 2);
 661                 return get_value(argv[0], argv[1]);
 662         }
 663         else if (actions == ACTION_GET_REGEXP) {
 664                 show_keys = 1;
 665                 use_key_regexp = 1;
 666                 do_all = 1;
 667                 check_argc(argc, 1, 2);
 668                 return get_value(argv[0], argv[1]);
 669         }
 670         else if (actions == ACTION_GET_URLMATCH) {
 671                 check_argc(argc, 2, 2);
 672                 return get_urlmatch(argv[0], argv[1]);
 673         }
 674         else if (actions == ACTION_UNSET) {
 675                 check_write();
 676                 check_argc(argc, 1, 2);
 677                 if (argc == 2)
 678                         return git_config_set_multivar_in_file_gently(given_config_source.file,
 679                                                                       argv[0], NULL, argv[1], 0);
 680                 else
 681                         return git_config_set_in_file_gently(given_config_source.file,
 682                                                              argv[0], NULL);
 683         }
 684         else if (actions == ACTION_UNSET_ALL) {
 685                 check_write();
 686                 check_argc(argc, 1, 2);
 687                 return git_config_set_multivar_in_file_gently(given_config_source.file,
 688                                                               argv[0], NULL, argv[1], 1);
 689         }
 690         else if (actions == ACTION_RENAME_SECTION) {
 691                 int ret;
 692                 check_write();
 693                 check_argc(argc, 2, 2);
 694                 ret = git_config_rename_section_in_file(given_config_source.file,
 695                                                         argv[0], argv[1]);
 696                 if (ret < 0)
 697                         return ret;
 698                 if (ret == 0)
 699                         die("No such section!");
 700         }
 701         else if (actions == ACTION_REMOVE_SECTION) {
 702                 int ret;
 703                 check_write();
 704                 check_argc(argc, 1, 1);
 705                 ret = git_config_rename_section_in_file(given_config_source.file,
 706                                                         argv[0], NULL);
 707                 if (ret < 0)
 708                         return ret;
 709                 if (ret == 0)
 710                         die("No such section!");
 711         }
 712         else if (actions == ACTION_GET_COLOR) {
 713                 check_argc(argc, 1, 2);
 714                 get_color(argv[0], argv[1]);
 715         }
 716         else if (actions == ACTION_GET_COLORBOOL) {
 717                 check_argc(argc, 1, 2);
 718                 if (argc == 2)
 719                         color_stdout_is_tty = git_config_bool("command line", argv[1]);
 720                 return get_colorbool(argv[0], argc == 2);
 721         }
 722
 723         return 0;
 724 }