Andrew's git / gitweb.git / builtin/config.c
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builtin / config.con commit Merge branch 'jc/read-tree-empty-with-m' (f55734f)
   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
   8static const char *const builtin_config_usage[] = {
   9        N_("git config [<options>]"),
  10        NULL
  11};
  12
  13static char *key;
  14static regex_t *key_regexp;
  15static regex_t *regexp;
  16static int show_keys;
  17static int omit_values;
  18static int use_key_regexp;
  19static int do_all;
  20static int do_not_match;
  21static char delim = '=';
  22static char key_delim = ' ';
  23static char term = '\n';
  24
  25static int use_global_config, use_system_config, use_local_config;
  26static struct git_config_source given_config_source;
  27static int actions, types;
  28static int end_null;
  29static int respect_includes_opt = -1;
  30static struct config_options config_options;
  31static 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
  55static 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
  90static 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
  97static 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
 110static 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
 126struct strbuf_list {
 127        struct strbuf *items;
 128        int nr;
 129        int alloc;
 130};
 131
 132static 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
 173static 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
 191static 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(key_regexp);
 218                        key_regexp = NULL;
 219                        ret = CONFIG_INVALID_PATTERN;
 220                        goto free_strings;
 221                }
 222        } else {
 223                if (git_config_parse_key(key_, &key, NULL)) {
 224                        ret = CONFIG_INVALID_KEY;
 225                        goto free_strings;
 226                }
 227        }
 228
 229        if (regex_) {
 230                if (regex_[0] == '!') {
 231                        do_not_match = 1;
 232                        regex_++;
 233                }
 234
 235                regexp = (regex_t*)xmalloc(sizeof(regex_t));
 236                if (regcomp(regexp, regex_, REG_EXTENDED)) {
 237                        error("invalid pattern: %s", regex_);
 238                        free(regexp);
 239                        regexp = NULL;
 240                        ret = CONFIG_INVALID_PATTERN;
 241                        goto free_strings;
 242                }
 243        }
 244
 245        git_config_with_options(collect_config, &values,
 246                                &given_config_source, &config_options);
 247
 248        ret = !values.nr;
 249
 250        for (i = 0; i < values.nr; i++) {
 251                struct strbuf *buf = values.items + i;
 252                if (do_all || i == values.nr - 1)
 253                        fwrite(buf->buf, 1, buf->len, stdout);
 254                strbuf_release(buf);
 255        }
 256        free(values.items);
 257
 258free_strings:
 259        free(key);
 260        if (key_regexp) {
 261                regfree(key_regexp);
 262                free(key_regexp);
 263        }
 264        if (regexp) {
 265                regfree(regexp);
 266                free(regexp);
 267        }
 268
 269        return ret;
 270}
 271
 272static char *normalize_value(const char *key, const char *value)
 273{
 274        if (!value)
 275                return NULL;
 276
 277        if (types == 0 || types == TYPE_PATH)
 278                /*
 279                 * We don't do normalization for TYPE_PATH here: If
 280                 * the path is like ~/foobar/, we prefer to store
 281                 * "~/foobar/" in the config file, and to expand the ~
 282                 * when retrieving the value.
 283                 */
 284                return xstrdup(value);
 285        if (types == TYPE_INT)
 286                return xstrfmt("%"PRId64, git_config_int64(key, value));
 287        if (types == TYPE_BOOL)
 288                return xstrdup(git_config_bool(key, value) ?  "true" : "false");
 289        if (types == TYPE_BOOL_OR_INT) {
 290                int is_bool, v;
 291                v = git_config_bool_or_int(key, value, &is_bool);
 292                if (!is_bool)
 293                        return xstrfmt("%d", v);
 294                else
 295                        return xstrdup(v ? "true" : "false");
 296        }
 297
 298        die("BUG: cannot normalize type %d", types);
 299}
 300
 301static int get_color_found;
 302static const char *get_color_slot;
 303static const char *get_colorbool_slot;
 304static char parsed_color[COLOR_MAXLEN];
 305
 306static int git_get_color_config(const char *var, const char *value, void *cb)
 307{
 308        if (!strcmp(var, get_color_slot)) {
 309                if (!value)
 310                        config_error_nonbool(var);
 311                if (color_parse(value, parsed_color) < 0)
 312                        return -1;
 313                get_color_found = 1;
 314        }
 315        return 0;
 316}
 317
 318static void get_color(const char *var, const char *def_color)
 319{
 320        get_color_slot = var;
 321        get_color_found = 0;
 322        parsed_color[0] = '\0';
 323        git_config_with_options(git_get_color_config, NULL,
 324                                &given_config_source, &config_options);
 325
 326        if (!get_color_found && def_color) {
 327                if (color_parse(def_color, parsed_color) < 0)
 328                        die(_("unable to parse default color value"));
 329        }
 330
 331        fputs(parsed_color, stdout);
 332}
 333
 334static int get_colorbool_found;
 335static int get_diff_color_found;
 336static int get_color_ui_found;
 337static int git_get_colorbool_config(const char *var, const char *value,
 338                void *cb)
 339{
 340        if (!strcmp(var, get_colorbool_slot))
 341                get_colorbool_found = git_config_colorbool(var, value);
 342        else if (!strcmp(var, "diff.color"))
 343                get_diff_color_found = git_config_colorbool(var, value);
 344        else if (!strcmp(var, "color.ui"))
 345                get_color_ui_found = git_config_colorbool(var, value);
 346        return 0;
 347}
 348
 349static int get_colorbool(const char *var, int print)
 350{
 351        get_colorbool_slot = var;
 352        get_colorbool_found = -1;
 353        get_diff_color_found = -1;
 354        get_color_ui_found = -1;
 355        git_config_with_options(git_get_colorbool_config, NULL,
 356                                &given_config_source, &config_options);
 357
 358        if (get_colorbool_found < 0) {
 359                if (!strcmp(get_colorbool_slot, "color.diff"))
 360                        get_colorbool_found = get_diff_color_found;
 361                if (get_colorbool_found < 0)
 362                        get_colorbool_found = get_color_ui_found;
 363        }
 364
 365        if (get_colorbool_found < 0)
 366                /* default value if none found in config */
 367                get_colorbool_found = GIT_COLOR_AUTO;
 368
 369        get_colorbool_found = want_color(get_colorbool_found);
 370
 371        if (print) {
 372                printf("%s\n", get_colorbool_found ? "true" : "false");
 373                return 0;
 374        } else
 375                return get_colorbool_found ? 0 : 1;
 376}
 377
 378static void check_write(void)
 379{
 380        if (!given_config_source.file && !startup_info->have_repository)
 381                die("not in a git directory");
 382
 383        if (given_config_source.use_stdin)
 384                die("writing to stdin is not supported");
 385
 386        if (given_config_source.blob)
 387                die("writing config blobs is not supported");
 388}
 389
 390struct urlmatch_current_candidate_value {
 391        char value_is_null;
 392        struct strbuf value;
 393};
 394
 395static int urlmatch_collect_fn(const char *var, const char *value, void *cb)
 396{
 397        struct string_list *values = cb;
 398        struct string_list_item *item = string_list_insert(values, var);
 399        struct urlmatch_current_candidate_value *matched = item->util;
 400
 401        if (!matched) {
 402                matched = xmalloc(sizeof(*matched));
 403                strbuf_init(&matched->value, 0);
 404                item->util = matched;
 405        } else {
 406                strbuf_reset(&matched->value);
 407        }
 408
 409        if (value) {
 410                strbuf_addstr(&matched->value, value);
 411                matched->value_is_null = 0;
 412        } else {
 413                matched->value_is_null = 1;
 414        }
 415        return 0;
 416}
 417
 418static int get_urlmatch(const char *var, const char *url)
 419{
 420        int ret;
 421        char *section_tail;
 422        struct string_list_item *item;
 423        struct urlmatch_config config = { STRING_LIST_INIT_DUP };
 424        struct string_list values = STRING_LIST_INIT_DUP;
 425
 426        config.collect_fn = urlmatch_collect_fn;
 427        config.cascade_fn = NULL;
 428        config.cb = &values;
 429
 430        if (!url_normalize(url, &config.url))
 431                die("%s", config.url.err);
 432
 433        config.section = xstrdup_tolower(var);
 434        section_tail = strchr(config.section, '.');
 435        if (section_tail) {
 436                *section_tail = '\0';
 437                config.key = section_tail + 1;
 438                show_keys = 0;
 439        } else {
 440                config.key = NULL;
 441                show_keys = 1;
 442        }
 443
 444        git_config_with_options(urlmatch_config_entry, &config,
 445                                &given_config_source, &config_options);
 446
 447        ret = !values.nr;
 448
 449        for_each_string_list_item(item, &values) {
 450                struct urlmatch_current_candidate_value *matched = item->util;
 451                struct strbuf buf = STRBUF_INIT;
 452
 453                format_config(&buf, item->string,
 454                              matched->value_is_null ? NULL : matched->value.buf);
 455                fwrite(buf.buf, 1, buf.len, stdout);
 456                strbuf_release(&buf);
 457
 458                strbuf_release(&matched->value);
 459        }
 460        string_list_clear(&config.vars, 1);
 461        string_list_clear(&values, 1);
 462        free(config.url.url);
 463
 464        free((void *)config.section);
 465        return ret;
 466}
 467
 468static char *default_user_config(void)
 469{
 470        struct strbuf buf = STRBUF_INIT;
 471        strbuf_addf(&buf,
 472                    _("# This is Git's per-user configuration file.\n"
 473                      "[user]\n"
 474                      "# Please adapt and uncomment the following lines:\n"
 475                      "#        name = %s\n"
 476                      "#        email = %s\n"),
 477                    ident_default_name(),
 478                    ident_default_email());
 479        return strbuf_detach(&buf, NULL);
 480}
 481
 482int cmd_config(int argc, const char **argv, const char *prefix)
 483{
 484        int nongit = !startup_info->have_repository;
 485        char *value;
 486
 487        given_config_source.file = getenv(CONFIG_ENVIRONMENT);
 488
 489        argc = parse_options(argc, argv, prefix, builtin_config_options,
 490                             builtin_config_usage,
 491                             PARSE_OPT_STOP_AT_NON_OPTION);
 492
 493        if (use_global_config + use_system_config + use_local_config +
 494            !!given_config_source.file + !!given_config_source.blob > 1) {
 495                error("only one config file at a time.");
 496                usage_with_options(builtin_config_usage, builtin_config_options);
 497        }
 498
 499        if (given_config_source.file &&
 500                        !strcmp(given_config_source.file, "-")) {
 501                given_config_source.file = NULL;
 502                given_config_source.use_stdin = 1;
 503        }
 504
 505        if (use_global_config) {
 506                char *user_config = expand_user_path("~/.gitconfig", 0);
 507                char *xdg_config = xdg_config_home("config");
 508
 509                if (!user_config)
 510                        /*
 511                         * It is unknown if HOME/.gitconfig exists, so
 512                         * we do not know if we should write to XDG
 513                         * location; error out even if XDG_CONFIG_HOME
 514                         * is set and points at a sane location.
 515                         */
 516                        die("$HOME not set");
 517
 518                if (access_or_warn(user_config, R_OK, 0) &&
 519                    xdg_config && !access_or_warn(xdg_config, R_OK, 0))
 520                        given_config_source.file = xdg_config;
 521                else
 522                        given_config_source.file = user_config;
 523        }
 524        else if (use_system_config)
 525                given_config_source.file = git_etc_gitconfig();
 526        else if (use_local_config)
 527                given_config_source.file = git_pathdup("config");
 528        else if (given_config_source.file) {
 529                if (!is_absolute_path(given_config_source.file) && prefix)
 530                        given_config_source.file =
 531                                prefix_filename(prefix, given_config_source.file);
 532        }
 533
 534        if (respect_includes_opt == -1)
 535                config_options.respect_includes = !given_config_source.file;
 536        else
 537                config_options.respect_includes = respect_includes_opt;
 538
 539        if (end_null) {
 540                term = '\0';
 541                delim = '\n';
 542                key_delim = '\n';
 543        }
 544
 545        if (HAS_MULTI_BITS(types)) {
 546                error("only one type at a time.");
 547                usage_with_options(builtin_config_usage, builtin_config_options);
 548        }
 549
 550        if ((actions & (ACTION_GET_COLOR|ACTION_GET_COLORBOOL)) && types) {
 551                error("--get-color and variable type are incoherent");
 552                usage_with_options(builtin_config_usage, builtin_config_options);
 553        }
 554
 555        if (HAS_MULTI_BITS(actions)) {
 556                error("only one action at a time.");
 557                usage_with_options(builtin_config_usage, builtin_config_options);
 558        }
 559        if (actions == 0)
 560                switch (argc) {
 561                case 1: actions = ACTION_GET; break;
 562                case 2: actions = ACTION_SET; break;
 563                case 3: actions = ACTION_SET_ALL; break;
 564                default:
 565                        usage_with_options(builtin_config_usage, builtin_config_options);
 566                }
 567        if (omit_values &&
 568            !(actions == ACTION_LIST || actions == ACTION_GET_REGEXP)) {
 569                error("--name-only is only applicable to --list or --get-regexp");
 570                usage_with_options(builtin_config_usage, builtin_config_options);
 571        }
 572
 573        if (show_origin && !(actions &
 574                (ACTION_GET|ACTION_GET_ALL|ACTION_GET_REGEXP|ACTION_LIST))) {
 575                error("--show-origin is only applicable to --get, --get-all, "
 576                          "--get-regexp, and --list.");
 577                usage_with_options(builtin_config_usage, builtin_config_options);
 578        }
 579
 580        if (actions == ACTION_LIST) {
 581                check_argc(argc, 0, 0);
 582                if (git_config_with_options(show_all_config, NULL,
 583                                            &given_config_source,
 584                                            &config_options) < 0) {
 585                        if (given_config_source.file)
 586                                die_errno("unable to read config file '%s'",
 587                                          given_config_source.file);
 588                        else
 589                                die("error processing config file(s)");
 590                }
 591        }
 592        else if (actions == ACTION_EDIT) {
 593                char *config_file;
 594
 595                check_argc(argc, 0, 0);
 596                if (!given_config_source.file && nongit)
 597                        die("not in a git directory");
 598                if (given_config_source.use_stdin)
 599                        die("editing stdin is not supported");
 600                if (given_config_source.blob)
 601                        die("editing blobs is not supported");
 602                git_config(git_default_config, NULL);
 603                config_file = given_config_source.file ?
 604                                xstrdup(given_config_source.file) :
 605                                git_pathdup("config");
 606                if (use_global_config) {
 607                        int fd = open(config_file, O_CREAT | O_EXCL | O_WRONLY, 0666);
 608                        if (fd >= 0) {
 609                                char *content = default_user_config();
 610                                write_str_in_full(fd, content);
 611                                free(content);
 612                                close(fd);
 613                        }
 614                        else if (errno != EEXIST)
 615                                die_errno(_("cannot create configuration file %s"), config_file);
 616                }
 617                launch_editor(config_file, NULL, NULL);
 618                free(config_file);
 619        }
 620        else if (actions == ACTION_SET) {
 621                int ret;
 622                check_write();
 623                check_argc(argc, 2, 2);
 624                value = normalize_value(argv[0], argv[1]);
 625                ret = git_config_set_in_file_gently(given_config_source.file, argv[0], value);
 626                if (ret == CONFIG_NOTHING_SET)
 627                        error(_("cannot overwrite multiple values with a single value\n"
 628                        "       Use a regexp, --add or --replace-all to change %s."), argv[0]);
 629                return ret;
 630        }
 631        else if (actions == ACTION_SET_ALL) {
 632                check_write();
 633                check_argc(argc, 2, 3);
 634                value = normalize_value(argv[0], argv[1]);
 635                return git_config_set_multivar_in_file_gently(given_config_source.file,
 636                                                              argv[0], value, argv[2], 0);
 637        }
 638        else if (actions == ACTION_ADD) {
 639                check_write();
 640                check_argc(argc, 2, 2);
 641                value = normalize_value(argv[0], argv[1]);
 642                return git_config_set_multivar_in_file_gently(given_config_source.file,
 643                                                              argv[0], value,
 644                                                              CONFIG_REGEX_NONE, 0);
 645        }
 646        else if (actions == ACTION_REPLACE_ALL) {
 647                check_write();
 648                check_argc(argc, 2, 3);
 649                value = normalize_value(argv[0], argv[1]);
 650                return git_config_set_multivar_in_file_gently(given_config_source.file,
 651                                                              argv[0], value, argv[2], 1);
 652        }
 653        else if (actions == ACTION_GET) {
 654                check_argc(argc, 1, 2);
 655                return get_value(argv[0], argv[1]);
 656        }
 657        else if (actions == ACTION_GET_ALL) {
 658                do_all = 1;
 659                check_argc(argc, 1, 2);
 660                return get_value(argv[0], argv[1]);
 661        }
 662        else if (actions == ACTION_GET_REGEXP) {
 663                show_keys = 1;
 664                use_key_regexp = 1;
 665                do_all = 1;
 666                check_argc(argc, 1, 2);
 667                return get_value(argv[0], argv[1]);
 668        }
 669        else if (actions == ACTION_GET_URLMATCH) {
 670                check_argc(argc, 2, 2);
 671                return get_urlmatch(argv[0], argv[1]);
 672        }
 673        else if (actions == ACTION_UNSET) {
 674                check_write();
 675                check_argc(argc, 1, 2);
 676                if (argc == 2)
 677                        return git_config_set_multivar_in_file_gently(given_config_source.file,
 678                                                                      argv[0], NULL, argv[1], 0);
 679                else
 680                        return git_config_set_in_file_gently(given_config_source.file,
 681                                                             argv[0], NULL);
 682        }
 683        else if (actions == ACTION_UNSET_ALL) {
 684                check_write();
 685                check_argc(argc, 1, 2);
 686                return git_config_set_multivar_in_file_gently(given_config_source.file,
 687                                                              argv[0], NULL, argv[1], 1);
 688        }
 689        else if (actions == ACTION_RENAME_SECTION) {
 690                int ret;
 691                check_write();
 692                check_argc(argc, 2, 2);
 693                ret = git_config_rename_section_in_file(given_config_source.file,
 694                                                        argv[0], argv[1]);
 695                if (ret < 0)
 696                        return ret;
 697                if (ret == 0)
 698                        die("No such section!");
 699        }
 700        else if (actions == ACTION_REMOVE_SECTION) {
 701                int ret;
 702                check_write();
 703                check_argc(argc, 1, 1);
 704                ret = git_config_rename_section_in_file(given_config_source.file,
 705                                                        argv[0], NULL);
 706                if (ret < 0)
 707                        return ret;
 708                if (ret == 0)
 709                        die("No such section!");
 710        }
 711        else if (actions == ACTION_GET_COLOR) {
 712                check_argc(argc, 1, 2);
 713                get_color(argv[0], argv[1]);
 714        }
 715        else if (actions == ACTION_GET_COLORBOOL) {
 716                check_argc(argc, 1, 2);
 717                if (argc == 2)
 718                        color_stdout_is_tty = git_config_bool("command line", argv[1]);
 719                return get_colorbool(argv[0], argc == 2);
 720        }
 721
 722        return 0;
 723}