Andrew's git / gitweb.git / builtin/config.c
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builtin / config.con commit commit: add short-circuit to paint_down_to_common() (d7c1ec3)
   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
   9static const char *const builtin_config_usage[] = {
  10        N_("git config [<options>]"),
  11        NULL
  12};
  13
  14static char *key;
  15static regex_t *key_regexp;
  16static regex_t *regexp;
  17static int show_keys;
  18static int omit_values;
  19static int use_key_regexp;
  20static int do_all;
  21static int do_not_match;
  22static char delim = '=';
  23static char key_delim = ' ';
  24static char term = '\n';
  25
  26static int use_global_config, use_system_config, use_local_config;
  27static struct git_config_source given_config_source;
  28static int actions, types;
  29static int end_null;
  30static int respect_includes_opt = -1;
  31static struct config_options config_options;
  32static 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#define TYPE_EXPIRY_DATE (1<<4)
  56
  57static struct option builtin_config_options[] = {
  58        OPT_GROUP(N_("Config file location")),
  59        OPT_BOOL(0, "global", &use_global_config, N_("use global config file")),
  60        OPT_BOOL(0, "system", &use_system_config, N_("use system config file")),
  61        OPT_BOOL(0, "local", &use_local_config, N_("use repository config file")),
  62        OPT_STRING('f', "file", &given_config_source.file, N_("file"), N_("use given config file")),
  63        OPT_STRING(0, "blob", &given_config_source.blob, N_("blob-id"), N_("read config from given blob object")),
  64        OPT_GROUP(N_("Action")),
  65        OPT_BIT(0, "get", &actions, N_("get value: name [value-regex]"), ACTION_GET),
  66        OPT_BIT(0, "get-all", &actions, N_("get all values: key [value-regex]"), ACTION_GET_ALL),
  67        OPT_BIT(0, "get-regexp", &actions, N_("get values for regexp: name-regex [value-regex]"), ACTION_GET_REGEXP),
  68        OPT_BIT(0, "get-urlmatch", &actions, N_("get value specific for the URL: section[.var] URL"), ACTION_GET_URLMATCH),
  69        OPT_BIT(0, "replace-all", &actions, N_("replace all matching variables: name value [value_regex]"), ACTION_REPLACE_ALL),
  70        OPT_BIT(0, "add", &actions, N_("add a new variable: name value"), ACTION_ADD),
  71        OPT_BIT(0, "unset", &actions, N_("remove a variable: name [value-regex]"), ACTION_UNSET),
  72        OPT_BIT(0, "unset-all", &actions, N_("remove all matches: name [value-regex]"), ACTION_UNSET_ALL),
  73        OPT_BIT(0, "rename-section", &actions, N_("rename section: old-name new-name"), ACTION_RENAME_SECTION),
  74        OPT_BIT(0, "remove-section", &actions, N_("remove a section: name"), ACTION_REMOVE_SECTION),
  75        OPT_BIT('l', "list", &actions, N_("list all"), ACTION_LIST),
  76        OPT_BIT('e', "edit", &actions, N_("open an editor"), ACTION_EDIT),
  77        OPT_BIT(0, "get-color", &actions, N_("find the color configured: slot [default]"), ACTION_GET_COLOR),
  78        OPT_BIT(0, "get-colorbool", &actions, N_("find the color setting: slot [stdout-is-tty]"), ACTION_GET_COLORBOOL),
  79        OPT_GROUP(N_("Type")),
  80        OPT_BIT(0, "bool", &types, N_("value is \"true\" or \"false\""), TYPE_BOOL),
  81        OPT_BIT(0, "int", &types, N_("value is decimal number"), TYPE_INT),
  82        OPT_BIT(0, "bool-or-int", &types, N_("value is --bool or --int"), TYPE_BOOL_OR_INT),
  83        OPT_BIT(0, "path", &types, N_("value is a path (file or directory name)"), TYPE_PATH),
  84        OPT_BIT(0, "expiry-date", &types, N_("value is an expiry date"), TYPE_EXPIRY_DATE),
  85        OPT_GROUP(N_("Other")),
  86        OPT_BOOL('z', "null", &end_null, N_("terminate values with NUL byte")),
  87        OPT_BOOL(0, "name-only", &omit_values, N_("show variable names only")),
  88        OPT_BOOL(0, "includes", &respect_includes_opt, N_("respect include directives on lookup")),
  89        OPT_BOOL(0, "show-origin", &show_origin, N_("show origin of config (file, standard input, blob, command line)")),
  90        OPT_END(),
  91};
  92
  93static void check_argc(int argc, int min, int max) {
  94        if (argc >= min && argc <= max)
  95                return;
  96        error("wrong number of arguments");
  97        usage_with_options(builtin_config_usage, builtin_config_options);
  98}
  99
 100static void show_config_origin(struct strbuf *buf)
 101{
 102        const char term = end_null ? '\0' : '\t';
 103
 104        strbuf_addstr(buf, current_config_origin_type());
 105        strbuf_addch(buf, ':');
 106        if (end_null)
 107                strbuf_addstr(buf, current_config_name());
 108        else
 109                quote_c_style(current_config_name(), buf, NULL, 0);
 110        strbuf_addch(buf, term);
 111}
 112
 113static int show_all_config(const char *key_, const char *value_, void *cb)
 114{
 115        if (show_origin) {
 116                struct strbuf buf = STRBUF_INIT;
 117                show_config_origin(&buf);
 118                /* Use fwrite as "buf" can contain \0's if "end_null" is set. */
 119                fwrite(buf.buf, 1, buf.len, stdout);
 120                strbuf_release(&buf);
 121        }
 122        if (!omit_values && value_)
 123                printf("%s%c%s%c", key_, delim, value_, term);
 124        else
 125                printf("%s%c", key_, term);
 126        return 0;
 127}
 128
 129struct strbuf_list {
 130        struct strbuf *items;
 131        int nr;
 132        int alloc;
 133};
 134
 135static int format_config(struct strbuf *buf, const char *key_, const char *value_)
 136{
 137        if (show_origin)
 138                show_config_origin(buf);
 139        if (show_keys)
 140                strbuf_addstr(buf, key_);
 141        if (!omit_values) {
 142                if (show_keys)
 143                        strbuf_addch(buf, key_delim);
 144
 145                if (types == TYPE_INT)
 146                        strbuf_addf(buf, "%"PRId64,
 147                                    git_config_int64(key_, value_ ? value_ : ""));
 148                else if (types == TYPE_BOOL)
 149                        strbuf_addstr(buf, git_config_bool(key_, value_) ?
 150                                      "true" : "false");
 151                else if (types == TYPE_BOOL_OR_INT) {
 152                        int is_bool, v;
 153                        v = git_config_bool_or_int(key_, value_, &is_bool);
 154                        if (is_bool)
 155                                strbuf_addstr(buf, v ? "true" : "false");
 156                        else
 157                                strbuf_addf(buf, "%d", v);
 158                } else if (types == TYPE_PATH) {
 159                        const char *v;
 160                        if (git_config_pathname(&v, key_, value_) < 0)
 161                                return -1;
 162                        strbuf_addstr(buf, v);
 163                        free((char *)v);
 164                } else if (types == TYPE_EXPIRY_DATE) {
 165                        timestamp_t t;
 166                        if (git_config_expiry_date(&t, key_, value_) < 0)
 167                                return -1;
 168                        strbuf_addf(buf, "%"PRItime, t);
 169                } else if (value_) {
 170                        strbuf_addstr(buf, value_);
 171                } else {
 172                        /* Just show the key name; back out delimiter */
 173                        if (show_keys)
 174                                strbuf_setlen(buf, buf->len - 1);
 175                }
 176        }
 177        strbuf_addch(buf, term);
 178        return 0;
 179}
 180
 181static int collect_config(const char *key_, const char *value_, void *cb)
 182{
 183        struct strbuf_list *values = cb;
 184
 185        if (!use_key_regexp && strcmp(key_, key))
 186                return 0;
 187        if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
 188                return 0;
 189        if (regexp != NULL &&
 190            (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
 191                return 0;
 192
 193        ALLOC_GROW(values->items, values->nr + 1, values->alloc);
 194        strbuf_init(&values->items[values->nr], 0);
 195
 196        return format_config(&values->items[values->nr++], key_, value_);
 197}
 198
 199static int get_value(const char *key_, const char *regex_)
 200{
 201        int ret = CONFIG_GENERIC_ERROR;
 202        struct strbuf_list values = {NULL};
 203        int i;
 204
 205        if (use_key_regexp) {
 206                char *tl;
 207
 208                /*
 209                 * NEEDSWORK: this naive pattern lowercasing obviously does not
 210                 * work for more complex patterns like "^[^.]*Foo.*bar".
 211                 * Perhaps we should deprecate this altogether someday.
 212                 */
 213
 214                key = xstrdup(key_);
 215                for (tl = key + strlen(key) - 1;
 216                     tl >= key && *tl != '.';
 217                     tl--)
 218                        *tl = tolower(*tl);
 219                for (tl = key; *tl && *tl != '.'; tl++)
 220                        *tl = tolower(*tl);
 221
 222                key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
 223                if (regcomp(key_regexp, key, REG_EXTENDED)) {
 224                        error("invalid key pattern: %s", key_);
 225                        FREE_AND_NULL(key_regexp);
 226                        ret = CONFIG_INVALID_PATTERN;
 227                        goto free_strings;
 228                }
 229        } else {
 230                if (git_config_parse_key(key_, &key, NULL)) {
 231                        ret = CONFIG_INVALID_KEY;
 232                        goto free_strings;
 233                }
 234        }
 235
 236        if (regex_) {
 237                if (regex_[0] == '!') {
 238                        do_not_match = 1;
 239                        regex_++;
 240                }
 241
 242                regexp = (regex_t*)xmalloc(sizeof(regex_t));
 243                if (regcomp(regexp, regex_, REG_EXTENDED)) {
 244                        error("invalid pattern: %s", regex_);
 245                        FREE_AND_NULL(regexp);
 246                        ret = CONFIG_INVALID_PATTERN;
 247                        goto free_strings;
 248                }
 249        }
 250
 251        config_with_options(collect_config, &values,
 252                            &given_config_source, &config_options);
 253
 254        ret = !values.nr;
 255
 256        for (i = 0; i < values.nr; i++) {
 257                struct strbuf *buf = values.items + i;
 258                if (do_all || i == values.nr - 1)
 259                        fwrite(buf->buf, 1, buf->len, stdout);
 260                strbuf_release(buf);
 261        }
 262        free(values.items);
 263
 264free_strings:
 265        free(key);
 266        if (key_regexp) {
 267                regfree(key_regexp);
 268                free(key_regexp);
 269        }
 270        if (regexp) {
 271                regfree(regexp);
 272                free(regexp);
 273        }
 274
 275        return ret;
 276}
 277
 278static char *normalize_value(const char *key, const char *value)
 279{
 280        if (!value)
 281                return NULL;
 282
 283        if (types == 0 || types == TYPE_PATH || types == TYPE_EXPIRY_DATE)
 284                /*
 285                 * We don't do normalization for TYPE_PATH here: If
 286                 * the path is like ~/foobar/, we prefer to store
 287                 * "~/foobar/" in the config file, and to expand the ~
 288                 * when retrieving the value.
 289                 * Also don't do normalization for expiry dates.
 290                 */
 291                return xstrdup(value);
 292        if (types == TYPE_INT)
 293                return xstrfmt("%"PRId64, git_config_int64(key, value));
 294        if (types == TYPE_BOOL)
 295                return xstrdup(git_config_bool(key, value) ?  "true" : "false");
 296        if (types == TYPE_BOOL_OR_INT) {
 297                int is_bool, v;
 298                v = git_config_bool_or_int(key, value, &is_bool);
 299                if (!is_bool)
 300                        return xstrfmt("%d", v);
 301                else
 302                        return xstrdup(v ? "true" : "false");
 303        }
 304
 305        die("BUG: cannot normalize type %d", types);
 306}
 307
 308static int get_color_found;
 309static const char *get_color_slot;
 310static const char *get_colorbool_slot;
 311static char parsed_color[COLOR_MAXLEN];
 312
 313static int git_get_color_config(const char *var, const char *value, void *cb)
 314{
 315        if (!strcmp(var, get_color_slot)) {
 316                if (!value)
 317                        config_error_nonbool(var);
 318                if (color_parse(value, parsed_color) < 0)
 319                        return -1;
 320                get_color_found = 1;
 321        }
 322        return 0;
 323}
 324
 325static void get_color(const char *var, const char *def_color)
 326{
 327        get_color_slot = var;
 328        get_color_found = 0;
 329        parsed_color[0] = '\0';
 330        config_with_options(git_get_color_config, NULL,
 331                            &given_config_source, &config_options);
 332
 333        if (!get_color_found && def_color) {
 334                if (color_parse(def_color, parsed_color) < 0)
 335                        die(_("unable to parse default color value"));
 336        }
 337
 338        fputs(parsed_color, stdout);
 339}
 340
 341static int get_colorbool_found;
 342static int get_diff_color_found;
 343static int get_color_ui_found;
 344static int git_get_colorbool_config(const char *var, const char *value,
 345                void *cb)
 346{
 347        if (!strcmp(var, get_colorbool_slot))
 348                get_colorbool_found = git_config_colorbool(var, value);
 349        else if (!strcmp(var, "diff.color"))
 350                get_diff_color_found = git_config_colorbool(var, value);
 351        else if (!strcmp(var, "color.ui"))
 352                get_color_ui_found = git_config_colorbool(var, value);
 353        return 0;
 354}
 355
 356static int get_colorbool(const char *var, int print)
 357{
 358        get_colorbool_slot = var;
 359        get_colorbool_found = -1;
 360        get_diff_color_found = -1;
 361        get_color_ui_found = -1;
 362        config_with_options(git_get_colorbool_config, NULL,
 363                            &given_config_source, &config_options);
 364
 365        if (get_colorbool_found < 0) {
 366                if (!strcmp(get_colorbool_slot, "color.diff"))
 367                        get_colorbool_found = get_diff_color_found;
 368                if (get_colorbool_found < 0)
 369                        get_colorbool_found = get_color_ui_found;
 370        }
 371
 372        if (get_colorbool_found < 0)
 373                /* default value if none found in config */
 374                get_colorbool_found = GIT_COLOR_AUTO;
 375
 376        get_colorbool_found = want_color(get_colorbool_found);
 377
 378        if (print) {
 379                printf("%s\n", get_colorbool_found ? "true" : "false");
 380                return 0;
 381        } else
 382                return get_colorbool_found ? 0 : 1;
 383}
 384
 385static void check_write(void)
 386{
 387        if (!given_config_source.file && !startup_info->have_repository)
 388                die("not in a git directory");
 389
 390        if (given_config_source.use_stdin)
 391                die("writing to stdin is not supported");
 392
 393        if (given_config_source.blob)
 394                die("writing config blobs is not supported");
 395}
 396
 397struct urlmatch_current_candidate_value {
 398        char value_is_null;
 399        struct strbuf value;
 400};
 401
 402static int urlmatch_collect_fn(const char *var, const char *value, void *cb)
 403{
 404        struct string_list *values = cb;
 405        struct string_list_item *item = string_list_insert(values, var);
 406        struct urlmatch_current_candidate_value *matched = item->util;
 407
 408        if (!matched) {
 409                matched = xmalloc(sizeof(*matched));
 410                strbuf_init(&matched->value, 0);
 411                item->util = matched;
 412        } else {
 413                strbuf_reset(&matched->value);
 414        }
 415
 416        if (value) {
 417                strbuf_addstr(&matched->value, value);
 418                matched->value_is_null = 0;
 419        } else {
 420                matched->value_is_null = 1;
 421        }
 422        return 0;
 423}
 424
 425static int get_urlmatch(const char *var, const char *url)
 426{
 427        int ret;
 428        char *section_tail;
 429        struct string_list_item *item;
 430        struct urlmatch_config config = { STRING_LIST_INIT_DUP };
 431        struct string_list values = STRING_LIST_INIT_DUP;
 432
 433        config.collect_fn = urlmatch_collect_fn;
 434        config.cascade_fn = NULL;
 435        config.cb = &values;
 436
 437        if (!url_normalize(url, &config.url))
 438                die("%s", config.url.err);
 439
 440        config.section = xstrdup_tolower(var);
 441        section_tail = strchr(config.section, '.');
 442        if (section_tail) {
 443                *section_tail = '\0';
 444                config.key = section_tail + 1;
 445                show_keys = 0;
 446        } else {
 447                config.key = NULL;
 448                show_keys = 1;
 449        }
 450
 451        config_with_options(urlmatch_config_entry, &config,
 452                            &given_config_source, &config_options);
 453
 454        ret = !values.nr;
 455
 456        for_each_string_list_item(item, &values) {
 457                struct urlmatch_current_candidate_value *matched = item->util;
 458                struct strbuf buf = STRBUF_INIT;
 459
 460                format_config(&buf, item->string,
 461                              matched->value_is_null ? NULL : matched->value.buf);
 462                fwrite(buf.buf, 1, buf.len, stdout);
 463                strbuf_release(&buf);
 464
 465                strbuf_release(&matched->value);
 466        }
 467        string_list_clear(&config.vars, 1);
 468        string_list_clear(&values, 1);
 469        free(config.url.url);
 470
 471        free((void *)config.section);
 472        return ret;
 473}
 474
 475static char *default_user_config(void)
 476{
 477        struct strbuf buf = STRBUF_INIT;
 478        strbuf_addf(&buf,
 479                    _("# This is Git's per-user configuration file.\n"
 480                      "[user]\n"
 481                      "# Please adapt and uncomment the following lines:\n"
 482                      "#        name = %s\n"
 483                      "#        email = %s\n"),
 484                    ident_default_name(),
 485                    ident_default_email());
 486        return strbuf_detach(&buf, NULL);
 487}
 488
 489int cmd_config(int argc, const char **argv, const char *prefix)
 490{
 491        int nongit = !startup_info->have_repository;
 492        char *value;
 493
 494        given_config_source.file = getenv(CONFIG_ENVIRONMENT);
 495
 496        argc = parse_options(argc, argv, prefix, builtin_config_options,
 497                             builtin_config_usage,
 498                             PARSE_OPT_STOP_AT_NON_OPTION);
 499
 500        if (use_global_config + use_system_config + use_local_config +
 501            !!given_config_source.file + !!given_config_source.blob > 1) {
 502                error("only one config file at a time.");
 503                usage_with_options(builtin_config_usage, builtin_config_options);
 504        }
 505
 506        if (use_local_config && nongit)
 507                die(_("--local can only be used inside a git repository"));
 508
 509        if (given_config_source.file &&
 510                        !strcmp(given_config_source.file, "-")) {
 511                given_config_source.file = NULL;
 512                given_config_source.use_stdin = 1;
 513        }
 514
 515        if (use_global_config) {
 516                char *user_config = expand_user_path("~/.gitconfig", 0);
 517                char *xdg_config = xdg_config_home("config");
 518
 519                if (!user_config)
 520                        /*
 521                         * It is unknown if HOME/.gitconfig exists, so
 522                         * we do not know if we should write to XDG
 523                         * location; error out even if XDG_CONFIG_HOME
 524                         * is set and points at a sane location.
 525                         */
 526                        die("$HOME not set");
 527
 528                if (access_or_warn(user_config, R_OK, 0) &&
 529                    xdg_config && !access_or_warn(xdg_config, R_OK, 0)) {
 530                        given_config_source.file = xdg_config;
 531                        free(user_config);
 532                } else {
 533                        given_config_source.file = user_config;
 534                        free(xdg_config);
 535                }
 536        }
 537        else if (use_system_config)
 538                given_config_source.file = git_etc_gitconfig();
 539        else if (use_local_config)
 540                given_config_source.file = git_pathdup("config");
 541        else if (given_config_source.file) {
 542                if (!is_absolute_path(given_config_source.file) && prefix)
 543                        given_config_source.file =
 544                                prefix_filename(prefix, given_config_source.file);
 545        }
 546
 547        if (respect_includes_opt == -1)
 548                config_options.respect_includes = !given_config_source.file;
 549        else
 550                config_options.respect_includes = respect_includes_opt;
 551        if (!nongit) {
 552                config_options.commondir = get_git_common_dir();
 553                config_options.git_dir = get_git_dir();
 554        }
 555
 556        if (end_null) {
 557                term = '\0';
 558                delim = '\n';
 559                key_delim = '\n';
 560        }
 561
 562        if (HAS_MULTI_BITS(types)) {
 563                error("only one type at a time.");
 564                usage_with_options(builtin_config_usage, builtin_config_options);
 565        }
 566
 567        if ((actions & (ACTION_GET_COLOR|ACTION_GET_COLORBOOL)) && types) {
 568                error("--get-color and variable type are incoherent");
 569                usage_with_options(builtin_config_usage, builtin_config_options);
 570        }
 571
 572        if (HAS_MULTI_BITS(actions)) {
 573                error("only one action at a time.");
 574                usage_with_options(builtin_config_usage, builtin_config_options);
 575        }
 576        if (actions == 0)
 577                switch (argc) {
 578                case 1: actions = ACTION_GET; break;
 579                case 2: actions = ACTION_SET; break;
 580                case 3: actions = ACTION_SET_ALL; break;
 581                default:
 582                        usage_with_options(builtin_config_usage, builtin_config_options);
 583                }
 584        if (omit_values &&
 585            !(actions == ACTION_LIST || actions == ACTION_GET_REGEXP)) {
 586                error("--name-only is only applicable to --list or --get-regexp");
 587                usage_with_options(builtin_config_usage, builtin_config_options);
 588        }
 589
 590        if (show_origin && !(actions &
 591                (ACTION_GET|ACTION_GET_ALL|ACTION_GET_REGEXP|ACTION_LIST))) {
 592                error("--show-origin is only applicable to --get, --get-all, "
 593                          "--get-regexp, and --list.");
 594                usage_with_options(builtin_config_usage, builtin_config_options);
 595        }
 596
 597        if (actions == ACTION_LIST) {
 598                check_argc(argc, 0, 0);
 599                if (config_with_options(show_all_config, NULL,
 600                                        &given_config_source,
 601                                        &config_options) < 0) {
 602                        if (given_config_source.file)
 603                                die_errno("unable to read config file '%s'",
 604                                          given_config_source.file);
 605                        else
 606                                die("error processing config file(s)");
 607                }
 608        }
 609        else if (actions == ACTION_EDIT) {
 610                char *config_file;
 611
 612                check_argc(argc, 0, 0);
 613                if (!given_config_source.file && nongit)
 614                        die("not in a git directory");
 615                if (given_config_source.use_stdin)
 616                        die("editing stdin is not supported");
 617                if (given_config_source.blob)
 618                        die("editing blobs is not supported");
 619                git_config(git_default_config, NULL);
 620                config_file = given_config_source.file ?
 621                                xstrdup(given_config_source.file) :
 622                                git_pathdup("config");
 623                if (use_global_config) {
 624                        int fd = open(config_file, O_CREAT | O_EXCL | O_WRONLY, 0666);
 625                        if (fd >= 0) {
 626                                char *content = default_user_config();
 627                                write_str_in_full(fd, content);
 628                                free(content);
 629                                close(fd);
 630                        }
 631                        else if (errno != EEXIST)
 632                                die_errno(_("cannot create configuration file %s"), config_file);
 633                }
 634                launch_editor(config_file, NULL, NULL);
 635                free(config_file);
 636        }
 637        else if (actions == ACTION_SET) {
 638                int ret;
 639                check_write();
 640                check_argc(argc, 2, 2);
 641                value = normalize_value(argv[0], argv[1]);
 642                UNLEAK(value);
 643                ret = git_config_set_in_file_gently(given_config_source.file, argv[0], value);
 644                if (ret == CONFIG_NOTHING_SET)
 645                        error(_("cannot overwrite multiple values with a single value\n"
 646                        "       Use a regexp, --add or --replace-all to change %s."), argv[0]);
 647                return ret;
 648        }
 649        else if (actions == ACTION_SET_ALL) {
 650                check_write();
 651                check_argc(argc, 2, 3);
 652                value = normalize_value(argv[0], argv[1]);
 653                UNLEAK(value);
 654                return git_config_set_multivar_in_file_gently(given_config_source.file,
 655                                                              argv[0], value, argv[2], 0);
 656        }
 657        else if (actions == ACTION_ADD) {
 658                check_write();
 659                check_argc(argc, 2, 2);
 660                value = normalize_value(argv[0], argv[1]);
 661                UNLEAK(value);
 662                return git_config_set_multivar_in_file_gently(given_config_source.file,
 663                                                              argv[0], value,
 664                                                              CONFIG_REGEX_NONE, 0);
 665        }
 666        else if (actions == ACTION_REPLACE_ALL) {
 667                check_write();
 668                check_argc(argc, 2, 3);
 669                value = normalize_value(argv[0], argv[1]);
 670                UNLEAK(value);
 671                return git_config_set_multivar_in_file_gently(given_config_source.file,
 672                                                              argv[0], value, argv[2], 1);
 673        }
 674        else if (actions == ACTION_GET) {
 675                check_argc(argc, 1, 2);
 676                return get_value(argv[0], argv[1]);
 677        }
 678        else if (actions == ACTION_GET_ALL) {
 679                do_all = 1;
 680                check_argc(argc, 1, 2);
 681                return get_value(argv[0], argv[1]);
 682        }
 683        else if (actions == ACTION_GET_REGEXP) {
 684                show_keys = 1;
 685                use_key_regexp = 1;
 686                do_all = 1;
 687                check_argc(argc, 1, 2);
 688                return get_value(argv[0], argv[1]);
 689        }
 690        else if (actions == ACTION_GET_URLMATCH) {
 691                check_argc(argc, 2, 2);
 692                return get_urlmatch(argv[0], argv[1]);
 693        }
 694        else if (actions == ACTION_UNSET) {
 695                check_write();
 696                check_argc(argc, 1, 2);
 697                if (argc == 2)
 698                        return git_config_set_multivar_in_file_gently(given_config_source.file,
 699                                                                      argv[0], NULL, argv[1], 0);
 700                else
 701                        return git_config_set_in_file_gently(given_config_source.file,
 702                                                             argv[0], NULL);
 703        }
 704        else if (actions == ACTION_UNSET_ALL) {
 705                check_write();
 706                check_argc(argc, 1, 2);
 707                return git_config_set_multivar_in_file_gently(given_config_source.file,
 708                                                              argv[0], NULL, argv[1], 1);
 709        }
 710        else if (actions == ACTION_RENAME_SECTION) {
 711                int ret;
 712                check_write();
 713                check_argc(argc, 2, 2);
 714                ret = git_config_rename_section_in_file(given_config_source.file,
 715                                                        argv[0], argv[1]);
 716                if (ret < 0)
 717                        return ret;
 718                if (ret == 0)
 719                        die("No such section!");
 720        }
 721        else if (actions == ACTION_REMOVE_SECTION) {
 722                int ret;
 723                check_write();
 724                check_argc(argc, 1, 1);
 725                ret = git_config_rename_section_in_file(given_config_source.file,
 726                                                        argv[0], NULL);
 727                if (ret < 0)
 728                        return ret;
 729                if (ret == 0)
 730                        die("No such section!");
 731        }
 732        else if (actions == ACTION_GET_COLOR) {
 733                check_argc(argc, 1, 2);
 734                get_color(argv[0], argv[1]);
 735        }
 736        else if (actions == ACTION_GET_COLORBOOL) {
 737                check_argc(argc, 1, 2);
 738                if (argc == 2)
 739                        color_stdout_is_tty = git_config_bool("command line", argv[1]);
 740                return get_colorbool(argv[0], argc == 2);
 741        }
 742
 743        return 0;
 744}