builtin/config.c

   1 #include "builtin.h"
   2 #include "cache.h"
   3 #include "config.h"
   4 #include "color.h"
   5 #include "parse-options.h"
   6 #include "urlmatch.h"
   7 #include "quote.h"
   8
   9 static const char *const builtin_config_usage[] = {
  10         N_("git config [<options>]"),
  11         NULL
  12 };
  13
  14 static char *key;
  15 static regex_t *key_regexp;
  16 static regex_t *regexp;
  17 static int show_keys;
  18 static int omit_values;
  19 static int use_key_regexp;
  20 static int do_all;
  21 static int do_not_match;
  22 static char delim = '=';
  23 static char key_delim = ' ';
  24 static char term = '\n';
  25
  26 static int use_global_config, use_system_config, use_local_config;
  27 static struct git_config_source given_config_source;
  28 static int actions, types;
  29 static int end_null;
  30 static int respect_includes_opt = -1;
  31 static struct config_options config_options;
  32 static int show_origin;
  33
  34 #define ACTION_GET (1<<0)
  35 #define ACTION_GET_ALL (1<<1)
  36 #define ACTION_GET_REGEXP (1<<2)
  37 #define ACTION_REPLACE_ALL (1<<3)
  38 #define ACTION_ADD (1<<4)
  39 #define ACTION_UNSET (1<<5)
  40 #define ACTION_UNSET_ALL (1<<6)
  41 #define ACTION_RENAME_SECTION (1<<7)
  42 #define ACTION_REMOVE_SECTION (1<<8)
  43 #define ACTION_LIST (1<<9)
  44 #define ACTION_EDIT (1<<10)
  45 #define ACTION_SET (1<<11)
  46 #define ACTION_SET_ALL (1<<12)
  47 #define ACTION_GET_COLOR (1<<13)
  48 #define ACTION_GET_COLORBOOL (1<<14)
  49 #define ACTION_GET_URLMATCH (1<<15)
  50
  51 #define TYPE_BOOL (1<<0)
  52 #define TYPE_INT (1<<1)
  53 #define TYPE_BOOL_OR_INT (1<<2)
  54 #define TYPE_PATH (1<<3)
  55
  56 static struct option builtin_config_options[] = {
  57         OPT_GROUP(N_("Config file location")),
  58         OPT_BOOL(0, "global", &use_global_config, N_("use global config file")),
  59         OPT_BOOL(0, "system", &use_system_config, N_("use system config file")),
  60         OPT_BOOL(0, "local", &use_local_config, N_("use repository config file")),
  61         OPT_STRING('f', "file", &given_config_source.file, N_("file"), N_("use given config file")),
  62         OPT_STRING(0, "blob", &given_config_source.blob, N_("blob-id"), N_("read config from given blob object")),
  63         OPT_GROUP(N_("Action")),
  64         OPT_BIT(0, "get", &actions, N_("get value: name [value-regex]"), ACTION_GET),
  65         OPT_BIT(0, "get-all", &actions, N_("get all values: key [value-regex]"), ACTION_GET_ALL),
  66         OPT_BIT(0, "get-regexp", &actions, N_("get values for regexp: name-regex [value-regex]"), ACTION_GET_REGEXP),
  67         OPT_BIT(0, "get-urlmatch", &actions, N_("get value specific for the URL: section[.var] URL"), ACTION_GET_URLMATCH),
  68         OPT_BIT(0, "replace-all", &actions, N_("replace all matching variables: name value [value_regex]"), ACTION_REPLACE_ALL),
  69         OPT_BIT(0, "add", &actions, N_("add a new variable: name value"), ACTION_ADD),
  70         OPT_BIT(0, "unset", &actions, N_("remove a variable: name [value-regex]"), ACTION_UNSET),
  71         OPT_BIT(0, "unset-all", &actions, N_("remove all matches: name [value-regex]"), ACTION_UNSET_ALL),
  72         OPT_BIT(0, "rename-section", &actions, N_("rename section: old-name new-name"), ACTION_RENAME_SECTION),
  73         OPT_BIT(0, "remove-section", &actions, N_("remove a section: name"), ACTION_REMOVE_SECTION),
  74         OPT_BIT('l', "list", &actions, N_("list all"), ACTION_LIST),
  75         OPT_BIT('e', "edit", &actions, N_("open an editor"), ACTION_EDIT),
  76         OPT_BIT(0, "get-color", &actions, N_("find the color configured: slot [default]"), ACTION_GET_COLOR),
  77         OPT_BIT(0, "get-colorbool", &actions, N_("find the color setting: slot [stdout-is-tty]"), ACTION_GET_COLORBOOL),
  78         OPT_GROUP(N_("Type")),
  79         OPT_BIT(0, "bool", &types, N_("value is \"true\" or \"false\""), TYPE_BOOL),
  80         OPT_BIT(0, "int", &types, N_("value is decimal number"), TYPE_INT),
  81         OPT_BIT(0, "bool-or-int", &types, N_("value is --bool or --int"), TYPE_BOOL_OR_INT),
  82         OPT_BIT(0, "path", &types, N_("value is a path (file or directory name)"), TYPE_PATH),
  83         OPT_GROUP(N_("Other")),
  84         OPT_BOOL('z', "null", &end_null, N_("terminate values with NUL byte")),
  85         OPT_BOOL(0, "name-only", &omit_values, N_("show variable names only")),
  86         OPT_BOOL(0, "includes", &respect_includes_opt, N_("respect include directives on lookup")),
  87         OPT_BOOL(0, "show-origin", &show_origin, N_("show origin of config (file, standard input, blob, command line)")),
  88         OPT_END(),
  89 };
  90
  91 static void check_argc(int argc, int min, int max) {
  92         if (argc >= min && argc <= max)
  93                 return;
  94         error("wrong number of arguments");
  95         usage_with_options(builtin_config_usage, builtin_config_options);
  96 }
  97
  98 static void show_config_origin(struct strbuf *buf)
  99 {
 100         const char term = end_null ? '\0' : '\t';
 101
 102         strbuf_addstr(buf, current_config_origin_type());
 103         strbuf_addch(buf, ':');
 104         if (end_null)
 105                 strbuf_addstr(buf, current_config_name());
 106         else
 107                 quote_c_style(current_config_name(), buf, NULL, 0);
 108         strbuf_addch(buf, term);
 109 }
 110
 111 static int show_all_config(const char *key_, const char *value_, void *cb)
 112 {
 113         if (show_origin) {
 114                 struct strbuf buf = STRBUF_INIT;
 115                 show_config_origin(&buf);
 116                 /* Use fwrite as "buf" can contain \0's if "end_null" is set. */
 117                 fwrite(buf.buf, 1, buf.len, stdout);
 118                 strbuf_release(&buf);
 119         }
 120         if (!omit_values && value_)
 121                 printf("%s%c%s%c", key_, delim, value_, term);
 122         else
 123                 printf("%s%c", key_, term);
 124         return 0;
 125 }
 126
 127 struct strbuf_list {
 128         struct strbuf *items;
 129         int nr;
 130         int alloc;
 131 };
 132
 133 static int format_config(struct strbuf *buf, const char *key_, const char *value_)
 134 {
 135         if (show_origin)
 136                 show_config_origin(buf);
 137         if (show_keys)
 138                 strbuf_addstr(buf, key_);
 139         if (!omit_values) {
 140                 if (show_keys)
 141                         strbuf_addch(buf, key_delim);
 142
 143                 if (types == TYPE_INT)
 144                         strbuf_addf(buf, "%"PRId64,
 145                                     git_config_int64(key_, value_ ? value_ : ""));
 146                 else if (types == TYPE_BOOL)
 147                         strbuf_addstr(buf, git_config_bool(key_, value_) ?
 148                                       "true" : "false");
 149                 else if (types == TYPE_BOOL_OR_INT) {
 150                         int is_bool, v;
 151                         v = git_config_bool_or_int(key_, value_, &is_bool);
 152                         if (is_bool)
 153                                 strbuf_addstr(buf, v ? "true" : "false");
 154                         else
 155                                 strbuf_addf(buf, "%d", v);
 156                 } else if (types == TYPE_PATH) {
 157                         const char *v;
 158                         if (git_config_pathname(&v, key_, value_) < 0)
 159                                 return -1;
 160                         strbuf_addstr(buf, v);
 161                         free((char *)v);
 162                 } else if (value_) {
 163                         strbuf_addstr(buf, value_);
 164                 } else {
 165                         /* Just show the key name; back out delimiter */
 166                         if (show_keys)
 167                                 strbuf_setlen(buf, buf->len - 1);
 168                 }
 169         }
 170         strbuf_addch(buf, term);
 171         return 0;
 172 }
 173
 174 static int collect_config(const char *key_, const char *value_, void *cb)
 175 {
 176         struct strbuf_list *values = cb;
 177
 178         if (!use_key_regexp && strcmp(key_, key))
 179                 return 0;
 180         if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
 181                 return 0;
 182         if (regexp != NULL &&
 183             (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
 184                 return 0;
 185
 186         ALLOC_GROW(values->items, values->nr + 1, values->alloc);
 187         strbuf_init(&values->items[values->nr], 0);
 188
 189         return format_config(&values->items[values->nr++], key_, value_);
 190 }
 191
 192 static int get_value(const char *key_, const char *regex_)
 193 {
 194         int ret = CONFIG_GENERIC_ERROR;
 195         struct strbuf_list values = {NULL};
 196         int i;
 197
 198         if (use_key_regexp) {
 199                 char *tl;
 200
 201                 /*
 202                  * NEEDSWORK: this naive pattern lowercasing obviously does not
 203                  * work for more complex patterns like "^[^.]*Foo.*bar".
 204                  * Perhaps we should deprecate this altogether someday.
 205                  */
 206
 207                 key = xstrdup(key_);
 208                 for (tl = key + strlen(key) - 1;
 209                      tl >= key && *tl != '.';
 210                      tl--)
 211                         *tl = tolower(*tl);
 212                 for (tl = key; *tl && *tl != '.'; tl++)
 213                         *tl = tolower(*tl);
 214
 215                 key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
 216                 if (regcomp(key_regexp, key, REG_EXTENDED)) {
 217                         error("invalid key pattern: %s", key_);
 218                         free(key_regexp);
 219                         key_regexp = NULL;
 220                         ret = CONFIG_INVALID_PATTERN;
 221                         goto free_strings;
 222                 }
 223         } else {
 224                 if (git_config_parse_key(key_, &key, NULL)) {
 225                         ret = CONFIG_INVALID_KEY;
 226                         goto free_strings;
 227                 }
 228         }
 229
 230         if (regex_) {
 231                 if (regex_[0] == '!') {
 232                         do_not_match = 1;
 233                         regex_++;
 234                 }
 235
 236                 regexp = (regex_t*)xmalloc(sizeof(regex_t));
 237                 if (regcomp(regexp, regex_, REG_EXTENDED)) {
 238                         error("invalid pattern: %s", regex_);
 239                         free(regexp);
 240                         regexp = NULL;
 241                         ret = CONFIG_INVALID_PATTERN;
 242                         goto free_strings;
 243                 }
 244         }
 245
 246         git_config_with_options(collect_config, &values,
 247                                 &given_config_source, &config_options);
 248
 249         ret = !values.nr;
 250
 251         for (i = 0; i < values.nr; i++) {
 252                 struct strbuf *buf = values.items + i;
 253                 if (do_all || i == values.nr - 1)
 254                         fwrite(buf->buf, 1, buf->len, stdout);
 255                 strbuf_release(buf);
 256         }
 257         free(values.items);
 258
 259 free_strings:
 260         free(key);
 261         if (key_regexp) {
 262                 regfree(key_regexp);
 263                 free(key_regexp);
 264         }
 265         if (regexp) {
 266                 regfree(regexp);
 267                 free(regexp);
 268         }
 269
 270         return ret;
 271 }
 272
 273 static char *normalize_value(const char *key, const char *value)
 274 {
 275         if (!value)
 276                 return NULL;
 277
 278         if (types == 0 || types == TYPE_PATH)
 279                 /*
 280                  * We don't do normalization for TYPE_PATH here: If
 281                  * the path is like ~/foobar/, we prefer to store
 282                  * "~/foobar/" in the config file, and to expand the ~
 283                  * when retrieving the value.
 284                  */
 285                 return xstrdup(value);
 286         if (types == TYPE_INT)
 287                 return xstrfmt("%"PRId64, git_config_int64(key, value));
 288         if (types == TYPE_BOOL)
 289                 return xstrdup(git_config_bool(key, value) ?  "true" : "false");
 290         if (types == TYPE_BOOL_OR_INT) {
 291                 int is_bool, v;
 292                 v = git_config_bool_or_int(key, value, &is_bool);
 293                 if (!is_bool)
 294                         return xstrfmt("%d", v);
 295                 else
 296                         return xstrdup(v ? "true" : "false");
 297         }
 298
 299         die("BUG: cannot normalize type %d", types);
 300 }
 301
 302 static int get_color_found;
 303 static const char *get_color_slot;
 304 static const char *get_colorbool_slot;
 305 static char parsed_color[COLOR_MAXLEN];
 306
 307 static int git_get_color_config(const char *var, const char *value, void *cb)
 308 {
 309         if (!strcmp(var, get_color_slot)) {
 310                 if (!value)
 311                         config_error_nonbool(var);
 312                 if (color_parse(value, parsed_color) < 0)
 313                         return -1;
 314                 get_color_found = 1;
 315         }
 316         return 0;
 317 }
 318
 319 static void get_color(const char *var, const char *def_color)
 320 {
 321         get_color_slot = var;
 322         get_color_found = 0;
 323         parsed_color[0] = '\0';
 324         git_config_with_options(git_get_color_config, NULL,
 325                                 &given_config_source, &config_options);
 326
 327         if (!get_color_found && def_color) {
 328                 if (color_parse(def_color, parsed_color) < 0)
 329                         die(_("unable to parse default color value"));
 330         }
 331
 332         fputs(parsed_color, stdout);
 333 }
 334
 335 static int get_colorbool_found;
 336 static int get_diff_color_found;
 337 static int get_color_ui_found;
 338 static int git_get_colorbool_config(const char *var, const char *value,
 339                 void *cb)
 340 {
 341         if (!strcmp(var, get_colorbool_slot))
 342                 get_colorbool_found = git_config_colorbool(var, value);
 343         else if (!strcmp(var, "diff.color"))
 344                 get_diff_color_found = git_config_colorbool(var, value);
 345         else if (!strcmp(var, "color.ui"))
 346                 get_color_ui_found = git_config_colorbool(var, value);
 347         return 0;
 348 }
 349
 350 static int get_colorbool(const char *var, int print)
 351 {
 352         get_colorbool_slot = var;
 353         get_colorbool_found = -1;
 354         get_diff_color_found = -1;
 355         get_color_ui_found = -1;
 356         git_config_with_options(git_get_colorbool_config, NULL,
 357                                 &given_config_source, &config_options);
 358
 359         if (get_colorbool_found < 0) {
 360                 if (!strcmp(get_colorbool_slot, "color.diff"))
 361                         get_colorbool_found = get_diff_color_found;
 362                 if (get_colorbool_found < 0)
 363                         get_colorbool_found = get_color_ui_found;
 364         }
 365
 366         if (get_colorbool_found < 0)
 367                 /* default value if none found in config */
 368                 get_colorbool_found = GIT_COLOR_AUTO;
 369
 370         get_colorbool_found = want_color(get_colorbool_found);
 371
 372         if (print) {
 373                 printf("%s\n", get_colorbool_found ? "true" : "false");
 374                 return 0;
 375         } else
 376                 return get_colorbool_found ? 0 : 1;
 377 }
 378
 379 static void check_write(void)
 380 {
 381         if (!given_config_source.file && !startup_info->have_repository)
 382                 die("not in a git directory");
 383
 384         if (given_config_source.use_stdin)
 385                 die("writing to stdin is not supported");
 386
 387         if (given_config_source.blob)
 388                 die("writing config blobs is not supported");
 389 }
 390
 391 struct urlmatch_current_candidate_value {
 392         char value_is_null;
 393         struct strbuf value;
 394 };
 395
 396 static int urlmatch_collect_fn(const char *var, const char *value, void *cb)
 397 {
 398         struct string_list *values = cb;
 399         struct string_list_item *item = string_list_insert(values, var);
 400         struct urlmatch_current_candidate_value *matched = item->util;
 401
 402         if (!matched) {
 403                 matched = xmalloc(sizeof(*matched));
 404                 strbuf_init(&matched->value, 0);
 405                 item->util = matched;
 406         } else {
 407                 strbuf_reset(&matched->value);
 408         }
 409
 410         if (value) {
 411                 strbuf_addstr(&matched->value, value);
 412                 matched->value_is_null = 0;
 413         } else {
 414                 matched->value_is_null = 1;
 415         }
 416         return 0;
 417 }
 418
 419 static int get_urlmatch(const char *var, const char *url)
 420 {
 421         int ret;
 422         char *section_tail;
 423         struct string_list_item *item;
 424         struct urlmatch_config config = { STRING_LIST_INIT_DUP };
 425         struct string_list values = STRING_LIST_INIT_DUP;
 426
 427         config.collect_fn = urlmatch_collect_fn;
 428         config.cascade_fn = NULL;
 429         config.cb = &values;
 430
 431         if (!url_normalize(url, &config.url))
 432                 die("%s", config.url.err);
 433
 434         config.section = xstrdup_tolower(var);
 435         section_tail = strchr(config.section, '.');
 436         if (section_tail) {
 437                 *section_tail = '\0';
 438                 config.key = section_tail + 1;
 439                 show_keys = 0;
 440         } else {
 441                 config.key = NULL;
 442                 show_keys = 1;
 443         }
 444
 445         git_config_with_options(urlmatch_config_entry, &config,
 446                                 &given_config_source, &config_options);
 447
 448         ret = !values.nr;
 449
 450         for_each_string_list_item(item, &values) {
 451                 struct urlmatch_current_candidate_value *matched = item->util;
 452                 struct strbuf buf = STRBUF_INIT;
 453
 454                 format_config(&buf, item->string,
 455                               matched->value_is_null ? NULL : matched->value.buf);
 456                 fwrite(buf.buf, 1, buf.len, stdout);
 457                 strbuf_release(&buf);
 458
 459                 strbuf_release(&matched->value);
 460         }
 461         string_list_clear(&config.vars, 1);
 462         string_list_clear(&values, 1);
 463         free(config.url.url);
 464
 465         free((void *)config.section);
 466         return ret;
 467 }
 468
 469 static char *default_user_config(void)
 470 {
 471         struct strbuf buf = STRBUF_INIT;
 472         strbuf_addf(&buf,
 473                     _("# This is Git's per-user configuration file.\n"
 474                       "[user]\n"
 475                       "# Please adapt and uncomment the following lines:\n"
 476                       "#        name = %s\n"
 477                       "#        email = %s\n"),
 478                     ident_default_name(),
 479                     ident_default_email());
 480         return strbuf_detach(&buf, NULL);
 481 }
 482
 483 int cmd_config(int argc, const char **argv, const char *prefix)
 484 {
 485         int nongit = !startup_info->have_repository;
 486         char *value;
 487
 488         given_config_source.file = getenv(CONFIG_ENVIRONMENT);
 489
 490         argc = parse_options(argc, argv, prefix, builtin_config_options,
 491                              builtin_config_usage,
 492                              PARSE_OPT_STOP_AT_NON_OPTION);
 493
 494         if (use_global_config + use_system_config + use_local_config +
 495             !!given_config_source.file + !!given_config_source.blob > 1) {
 496                 error("only one config file at a time.");
 497                 usage_with_options(builtin_config_usage, builtin_config_options);
 498         }
 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 }