Andrew's git - gitweb.git/blob

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