Andrew's git / gitweb.git / builtin/config.c
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builtin / config.con commit Merge branch 'master' of https://github.com/ralfth/git-po-de into maint (0b484b4)
   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/*
  52 * The actions "ACTION_LIST | ACTION_GET_*" which may produce more than
  53 * one line of output and which should therefore be paged.
  54 */
  55#define PAGING_ACTIONS (ACTION_LIST | ACTION_GET_ALL | \
  56                        ACTION_GET_REGEXP | ACTION_GET_URLMATCH)
  57
  58#define TYPE_BOOL (1<<0)
  59#define TYPE_INT (1<<1)
  60#define TYPE_BOOL_OR_INT (1<<2)
  61#define TYPE_PATH (1<<3)
  62#define TYPE_EXPIRY_DATE (1<<4)
  63
  64static struct option builtin_config_options[] = {
  65        OPT_GROUP(N_("Config file location")),
  66        OPT_BOOL(0, "global", &use_global_config, N_("use global config file")),
  67        OPT_BOOL(0, "system", &use_system_config, N_("use system config file")),
  68        OPT_BOOL(0, "local", &use_local_config, N_("use repository config file")),
  69        OPT_STRING('f', "file", &given_config_source.file, N_("file"), N_("use given config file")),
  70        OPT_STRING(0, "blob", &given_config_source.blob, N_("blob-id"), N_("read config from given blob object")),
  71        OPT_GROUP(N_("Action")),
  72        OPT_BIT(0, "get", &actions, N_("get value: name [value-regex]"), ACTION_GET),
  73        OPT_BIT(0, "get-all", &actions, N_("get all values: key [value-regex]"), ACTION_GET_ALL),
  74        OPT_BIT(0, "get-regexp", &actions, N_("get values for regexp: name-regex [value-regex]"), ACTION_GET_REGEXP),
  75        OPT_BIT(0, "get-urlmatch", &actions, N_("get value specific for the URL: section[.var] URL"), ACTION_GET_URLMATCH),
  76        OPT_BIT(0, "replace-all", &actions, N_("replace all matching variables: name value [value_regex]"), ACTION_REPLACE_ALL),
  77        OPT_BIT(0, "add", &actions, N_("add a new variable: name value"), ACTION_ADD),
  78        OPT_BIT(0, "unset", &actions, N_("remove a variable: name [value-regex]"), ACTION_UNSET),
  79        OPT_BIT(0, "unset-all", &actions, N_("remove all matches: name [value-regex]"), ACTION_UNSET_ALL),
  80        OPT_BIT(0, "rename-section", &actions, N_("rename section: old-name new-name"), ACTION_RENAME_SECTION),
  81        OPT_BIT(0, "remove-section", &actions, N_("remove a section: name"), ACTION_REMOVE_SECTION),
  82        OPT_BIT('l', "list", &actions, N_("list all"), ACTION_LIST),
  83        OPT_BIT('e', "edit", &actions, N_("open an editor"), ACTION_EDIT),
  84        OPT_BIT(0, "get-color", &actions, N_("find the color configured: slot [default]"), ACTION_GET_COLOR),
  85        OPT_BIT(0, "get-colorbool", &actions, N_("find the color setting: slot [stdout-is-tty]"), ACTION_GET_COLORBOOL),
  86        OPT_GROUP(N_("Type")),
  87        OPT_BIT(0, "bool", &types, N_("value is \"true\" or \"false\""), TYPE_BOOL),
  88        OPT_BIT(0, "int", &types, N_("value is decimal number"), TYPE_INT),
  89        OPT_BIT(0, "bool-or-int", &types, N_("value is --bool or --int"), TYPE_BOOL_OR_INT),
  90        OPT_BIT(0, "path", &types, N_("value is a path (file or directory name)"), TYPE_PATH),
  91        OPT_BIT(0, "expiry-date", &types, N_("value is an expiry date"), TYPE_EXPIRY_DATE),
  92        OPT_GROUP(N_("Other")),
  93        OPT_BOOL('z', "null", &end_null, N_("terminate values with NUL byte")),
  94        OPT_BOOL(0, "name-only", &omit_values, N_("show variable names only")),
  95        OPT_BOOL(0, "includes", &respect_includes_opt, N_("respect include directives on lookup")),
  96        OPT_BOOL(0, "show-origin", &show_origin, N_("show origin of config (file, standard input, blob, command line)")),
  97        OPT_END(),
  98};
  99
 100static void check_argc(int argc, int min, int max) {
 101        if (argc >= min && argc <= max)
 102                return;
 103        error("wrong number of arguments");
 104        usage_with_options(builtin_config_usage, builtin_config_options);
 105}
 106
 107static void show_config_origin(struct strbuf *buf)
 108{
 109        const char term = end_null ? '\0' : '\t';
 110
 111        strbuf_addstr(buf, current_config_origin_type());
 112        strbuf_addch(buf, ':');
 113        if (end_null)
 114                strbuf_addstr(buf, current_config_name());
 115        else
 116                quote_c_style(current_config_name(), buf, NULL, 0);
 117        strbuf_addch(buf, term);
 118}
 119
 120static int show_all_config(const char *key_, const char *value_, void *cb)
 121{
 122        if (show_origin) {
 123                struct strbuf buf = STRBUF_INIT;
 124                show_config_origin(&buf);
 125                /* Use fwrite as "buf" can contain \0's if "end_null" is set. */
 126                fwrite(buf.buf, 1, buf.len, stdout);
 127                strbuf_release(&buf);
 128        }
 129        if (!omit_values && value_)
 130                printf("%s%c%s%c", key_, delim, value_, term);
 131        else
 132                printf("%s%c", key_, term);
 133        return 0;
 134}
 135
 136struct strbuf_list {
 137        struct strbuf *items;
 138        int nr;
 139        int alloc;
 140};
 141
 142static int format_config(struct strbuf *buf, const char *key_, const char *value_)
 143{
 144        if (show_origin)
 145                show_config_origin(buf);
 146        if (show_keys)
 147                strbuf_addstr(buf, key_);
 148        if (!omit_values) {
 149                if (show_keys)
 150                        strbuf_addch(buf, key_delim);
 151
 152                if (types == TYPE_INT)
 153                        strbuf_addf(buf, "%"PRId64,
 154                                    git_config_int64(key_, value_ ? value_ : ""));
 155                else if (types == TYPE_BOOL)
 156                        strbuf_addstr(buf, git_config_bool(key_, value_) ?
 157                                      "true" : "false");
 158                else if (types == TYPE_BOOL_OR_INT) {
 159                        int is_bool, v;
 160                        v = git_config_bool_or_int(key_, value_, &is_bool);
 161                        if (is_bool)
 162                                strbuf_addstr(buf, v ? "true" : "false");
 163                        else
 164                                strbuf_addf(buf, "%d", v);
 165                } else if (types == TYPE_PATH) {
 166                        const char *v;
 167                        if (git_config_pathname(&v, key_, value_) < 0)
 168                                return -1;
 169                        strbuf_addstr(buf, v);
 170                        free((char *)v);
 171                } else if (types == TYPE_EXPIRY_DATE) {
 172                        timestamp_t t;
 173                        if (git_config_expiry_date(&t, key_, value_) < 0)
 174                                return -1;
 175                        strbuf_addf(buf, "%"PRItime, t);
 176                } else if (value_) {
 177                        strbuf_addstr(buf, value_);
 178                } else {
 179                        /* Just show the key name; back out delimiter */
 180                        if (show_keys)
 181                                strbuf_setlen(buf, buf->len - 1);
 182                }
 183        }
 184        strbuf_addch(buf, term);
 185        return 0;
 186}
 187
 188static int collect_config(const char *key_, const char *value_, void *cb)
 189{
 190        struct strbuf_list *values = cb;
 191
 192        if (!use_key_regexp && strcmp(key_, key))
 193                return 0;
 194        if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
 195                return 0;
 196        if (regexp != NULL &&
 197            (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
 198                return 0;
 199
 200        ALLOC_GROW(values->items, values->nr + 1, values->alloc);
 201        strbuf_init(&values->items[values->nr], 0);
 202
 203        return format_config(&values->items[values->nr++], key_, value_);
 204}
 205
 206static int get_value(const char *key_, const char *regex_)
 207{
 208        int ret = CONFIG_GENERIC_ERROR;
 209        struct strbuf_list values = {NULL};
 210        int i;
 211
 212        if (use_key_regexp) {
 213                char *tl;
 214
 215                /*
 216                 * NEEDSWORK: this naive pattern lowercasing obviously does not
 217                 * work for more complex patterns like "^[^.]*Foo.*bar".
 218                 * Perhaps we should deprecate this altogether someday.
 219                 */
 220
 221                key = xstrdup(key_);
 222                for (tl = key + strlen(key) - 1;
 223                     tl >= key && *tl != '.';
 224                     tl--)
 225                        *tl = tolower(*tl);
 226                for (tl = key; *tl && *tl != '.'; tl++)
 227                        *tl = tolower(*tl);
 228
 229                key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
 230                if (regcomp(key_regexp, key, REG_EXTENDED)) {
 231                        error("invalid key pattern: %s", key_);
 232                        FREE_AND_NULL(key_regexp);
 233                        ret = CONFIG_INVALID_PATTERN;
 234                        goto free_strings;
 235                }
 236        } else {
 237                if (git_config_parse_key(key_, &key, NULL)) {
 238                        ret = CONFIG_INVALID_KEY;
 239                        goto free_strings;
 240                }
 241        }
 242
 243        if (regex_) {
 244                if (regex_[0] == '!') {
 245                        do_not_match = 1;
 246                        regex_++;
 247                }
 248
 249                regexp = (regex_t*)xmalloc(sizeof(regex_t));
 250                if (regcomp(regexp, regex_, REG_EXTENDED)) {
 251                        error("invalid pattern: %s", regex_);
 252                        FREE_AND_NULL(regexp);
 253                        ret = CONFIG_INVALID_PATTERN;
 254                        goto free_strings;
 255                }
 256        }
 257
 258        config_with_options(collect_config, &values,
 259                            &given_config_source, &config_options);
 260
 261        ret = !values.nr;
 262
 263        for (i = 0; i < values.nr; i++) {
 264                struct strbuf *buf = values.items + i;
 265                if (do_all || i == values.nr - 1)
 266                        fwrite(buf->buf, 1, buf->len, stdout);
 267                strbuf_release(buf);
 268        }
 269        free(values.items);
 270
 271free_strings:
 272        free(key);
 273        if (key_regexp) {
 274                regfree(key_regexp);
 275                free(key_regexp);
 276        }
 277        if (regexp) {
 278                regfree(regexp);
 279                free(regexp);
 280        }
 281
 282        return ret;
 283}
 284
 285static char *normalize_value(const char *key, const char *value)
 286{
 287        if (!value)
 288                return NULL;
 289
 290        if (types == 0 || types == TYPE_PATH || types == TYPE_EXPIRY_DATE)
 291                /*
 292                 * We don't do normalization for TYPE_PATH here: If
 293                 * the path is like ~/foobar/, we prefer to store
 294                 * "~/foobar/" in the config file, and to expand the ~
 295                 * when retrieving the value.
 296                 * Also don't do normalization for expiry dates.
 297                 */
 298                return xstrdup(value);
 299        if (types == TYPE_INT)
 300                return xstrfmt("%"PRId64, git_config_int64(key, value));
 301        if (types == TYPE_BOOL)
 302                return xstrdup(git_config_bool(key, value) ?  "true" : "false");
 303        if (types == TYPE_BOOL_OR_INT) {
 304                int is_bool, v;
 305                v = git_config_bool_or_int(key, value, &is_bool);
 306                if (!is_bool)
 307                        return xstrfmt("%d", v);
 308                else
 309                        return xstrdup(v ? "true" : "false");
 310        }
 311
 312        die("BUG: cannot normalize type %d", types);
 313}
 314
 315static int get_color_found;
 316static const char *get_color_slot;
 317static const char *get_colorbool_slot;
 318static char parsed_color[COLOR_MAXLEN];
 319
 320static int git_get_color_config(const char *var, const char *value, void *cb)
 321{
 322        if (!strcmp(var, get_color_slot)) {
 323                if (!value)
 324                        config_error_nonbool(var);
 325                if (color_parse(value, parsed_color) < 0)
 326                        return -1;
 327                get_color_found = 1;
 328        }
 329        return 0;
 330}
 331
 332static void get_color(const char *var, const char *def_color)
 333{
 334        get_color_slot = var;
 335        get_color_found = 0;
 336        parsed_color[0] = '\0';
 337        config_with_options(git_get_color_config, NULL,
 338                            &given_config_source, &config_options);
 339
 340        if (!get_color_found && def_color) {
 341                if (color_parse(def_color, parsed_color) < 0)
 342                        die(_("unable to parse default color value"));
 343        }
 344
 345        fputs(parsed_color, stdout);
 346}
 347
 348static int get_colorbool_found;
 349static int get_diff_color_found;
 350static int get_color_ui_found;
 351static int git_get_colorbool_config(const char *var, const char *value,
 352                void *cb)
 353{
 354        if (!strcmp(var, get_colorbool_slot))
 355                get_colorbool_found = git_config_colorbool(var, value);
 356        else if (!strcmp(var, "diff.color"))
 357                get_diff_color_found = git_config_colorbool(var, value);
 358        else if (!strcmp(var, "color.ui"))
 359                get_color_ui_found = git_config_colorbool(var, value);
 360        return 0;
 361}
 362
 363static int get_colorbool(const char *var, int print)
 364{
 365        get_colorbool_slot = var;
 366        get_colorbool_found = -1;
 367        get_diff_color_found = -1;
 368        get_color_ui_found = -1;
 369        config_with_options(git_get_colorbool_config, NULL,
 370                            &given_config_source, &config_options);
 371
 372        if (get_colorbool_found < 0) {
 373                if (!strcmp(get_colorbool_slot, "color.diff"))
 374                        get_colorbool_found = get_diff_color_found;
 375                if (get_colorbool_found < 0)
 376                        get_colorbool_found = get_color_ui_found;
 377        }
 378
 379        if (get_colorbool_found < 0)
 380                /* default value if none found in config */
 381                get_colorbool_found = GIT_COLOR_AUTO;
 382
 383        get_colorbool_found = want_color(get_colorbool_found);
 384
 385        if (print) {
 386                printf("%s\n", get_colorbool_found ? "true" : "false");
 387                return 0;
 388        } else
 389                return get_colorbool_found ? 0 : 1;
 390}
 391
 392static void check_write(void)
 393{
 394        if (!given_config_source.file && !startup_info->have_repository)
 395                die("not in a git directory");
 396
 397        if (given_config_source.use_stdin)
 398                die("writing to stdin is not supported");
 399
 400        if (given_config_source.blob)
 401                die("writing config blobs is not supported");
 402}
 403
 404struct urlmatch_current_candidate_value {
 405        char value_is_null;
 406        struct strbuf value;
 407};
 408
 409static int urlmatch_collect_fn(const char *var, const char *value, void *cb)
 410{
 411        struct string_list *values = cb;
 412        struct string_list_item *item = string_list_insert(values, var);
 413        struct urlmatch_current_candidate_value *matched = item->util;
 414
 415        if (!matched) {
 416                matched = xmalloc(sizeof(*matched));
 417                strbuf_init(&matched->value, 0);
 418                item->util = matched;
 419        } else {
 420                strbuf_reset(&matched->value);
 421        }
 422
 423        if (value) {
 424                strbuf_addstr(&matched->value, value);
 425                matched->value_is_null = 0;
 426        } else {
 427                matched->value_is_null = 1;
 428        }
 429        return 0;
 430}
 431
 432static int get_urlmatch(const char *var, const char *url)
 433{
 434        int ret;
 435        char *section_tail;
 436        struct string_list_item *item;
 437        struct urlmatch_config config = { STRING_LIST_INIT_DUP };
 438        struct string_list values = STRING_LIST_INIT_DUP;
 439
 440        config.collect_fn = urlmatch_collect_fn;
 441        config.cascade_fn = NULL;
 442        config.cb = &values;
 443
 444        if (!url_normalize(url, &config.url))
 445                die("%s", config.url.err);
 446
 447        config.section = xstrdup_tolower(var);
 448        section_tail = strchr(config.section, '.');
 449        if (section_tail) {
 450                *section_tail = '\0';
 451                config.key = section_tail + 1;
 452                show_keys = 0;
 453        } else {
 454                config.key = NULL;
 455                show_keys = 1;
 456        }
 457
 458        config_with_options(urlmatch_config_entry, &config,
 459                            &given_config_source, &config_options);
 460
 461        ret = !values.nr;
 462
 463        for_each_string_list_item(item, &values) {
 464                struct urlmatch_current_candidate_value *matched = item->util;
 465                struct strbuf buf = STRBUF_INIT;
 466
 467                format_config(&buf, item->string,
 468                              matched->value_is_null ? NULL : matched->value.buf);
 469                fwrite(buf.buf, 1, buf.len, stdout);
 470                strbuf_release(&buf);
 471
 472                strbuf_release(&matched->value);
 473        }
 474        string_list_clear(&config.vars, 1);
 475        string_list_clear(&values, 1);
 476        free(config.url.url);
 477
 478        free((void *)config.section);
 479        return ret;
 480}
 481
 482static char *default_user_config(void)
 483{
 484        struct strbuf buf = STRBUF_INIT;
 485        strbuf_addf(&buf,
 486                    _("# This is Git's per-user configuration file.\n"
 487                      "[user]\n"
 488                      "# Please adapt and uncomment the following lines:\n"
 489                      "#        name = %s\n"
 490                      "#        email = %s\n"),
 491                    ident_default_name(),
 492                    ident_default_email());
 493        return strbuf_detach(&buf, NULL);
 494}
 495
 496int cmd_config(int argc, const char **argv, const char *prefix)
 497{
 498        int nongit = !startup_info->have_repository;
 499        char *value;
 500
 501        given_config_source.file = getenv(CONFIG_ENVIRONMENT);
 502
 503        argc = parse_options(argc, argv, prefix, builtin_config_options,
 504                             builtin_config_usage,
 505                             PARSE_OPT_STOP_AT_NON_OPTION);
 506
 507        if (use_global_config + use_system_config + use_local_config +
 508            !!given_config_source.file + !!given_config_source.blob > 1) {
 509                error("only one config file at a time.");
 510                usage_with_options(builtin_config_usage, builtin_config_options);
 511        }
 512
 513        if (use_local_config && nongit)
 514                die(_("--local can only be used inside a git repository"));
 515
 516        if (given_config_source.file &&
 517                        !strcmp(given_config_source.file, "-")) {
 518                given_config_source.file = NULL;
 519                given_config_source.use_stdin = 1;
 520        }
 521
 522        if (use_global_config) {
 523                char *user_config = expand_user_path("~/.gitconfig", 0);
 524                char *xdg_config = xdg_config_home("config");
 525
 526                if (!user_config)
 527                        /*
 528                         * It is unknown if HOME/.gitconfig exists, so
 529                         * we do not know if we should write to XDG
 530                         * location; error out even if XDG_CONFIG_HOME
 531                         * is set and points at a sane location.
 532                         */
 533                        die("$HOME not set");
 534
 535                if (access_or_warn(user_config, R_OK, 0) &&
 536                    xdg_config && !access_or_warn(xdg_config, R_OK, 0)) {
 537                        given_config_source.file = xdg_config;
 538                        free(user_config);
 539                } else {
 540                        given_config_source.file = user_config;
 541                        free(xdg_config);
 542                }
 543        }
 544        else if (use_system_config)
 545                given_config_source.file = git_etc_gitconfig();
 546        else if (use_local_config)
 547                given_config_source.file = git_pathdup("config");
 548        else if (given_config_source.file) {
 549                if (!is_absolute_path(given_config_source.file) && prefix)
 550                        given_config_source.file =
 551                                prefix_filename(prefix, given_config_source.file);
 552        }
 553
 554        if (respect_includes_opt == -1)
 555                config_options.respect_includes = !given_config_source.file;
 556        else
 557                config_options.respect_includes = respect_includes_opt;
 558        if (!nongit) {
 559                config_options.commondir = get_git_common_dir();
 560                config_options.git_dir = get_git_dir();
 561        }
 562
 563        if (end_null) {
 564                term = '\0';
 565                delim = '\n';
 566                key_delim = '\n';
 567        }
 568
 569        if (HAS_MULTI_BITS(types)) {
 570                error("only one type at a time.");
 571                usage_with_options(builtin_config_usage, builtin_config_options);
 572        }
 573
 574        if ((actions & (ACTION_GET_COLOR|ACTION_GET_COLORBOOL)) && types) {
 575                error("--get-color and variable type are incoherent");
 576                usage_with_options(builtin_config_usage, builtin_config_options);
 577        }
 578
 579        if (HAS_MULTI_BITS(actions)) {
 580                error("only one action at a time.");
 581                usage_with_options(builtin_config_usage, builtin_config_options);
 582        }
 583        if (actions == 0)
 584                switch (argc) {
 585                case 1: actions = ACTION_GET; break;
 586                case 2: actions = ACTION_SET; break;
 587                case 3: actions = ACTION_SET_ALL; break;
 588                default:
 589                        usage_with_options(builtin_config_usage, builtin_config_options);
 590                }
 591        if (omit_values &&
 592            !(actions == ACTION_LIST || actions == ACTION_GET_REGEXP)) {
 593                error("--name-only is only applicable to --list or --get-regexp");
 594                usage_with_options(builtin_config_usage, builtin_config_options);
 595        }
 596
 597        if (show_origin && !(actions &
 598                (ACTION_GET|ACTION_GET_ALL|ACTION_GET_REGEXP|ACTION_LIST))) {
 599                error("--show-origin is only applicable to --get, --get-all, "
 600                          "--get-regexp, and --list.");
 601                usage_with_options(builtin_config_usage, builtin_config_options);
 602        }
 603
 604        if (actions & PAGING_ACTIONS)
 605                setup_auto_pager("config", 1);
 606
 607        if (actions == ACTION_LIST) {
 608                check_argc(argc, 0, 0);
 609                if (config_with_options(show_all_config, NULL,
 610                                        &given_config_source,
 611                                        &config_options) < 0) {
 612                        if (given_config_source.file)
 613                                die_errno("unable to read config file '%s'",
 614                                          given_config_source.file);
 615                        else
 616                                die("error processing config file(s)");
 617                }
 618        }
 619        else if (actions == ACTION_EDIT) {
 620                char *config_file;
 621
 622                check_argc(argc, 0, 0);
 623                if (!given_config_source.file && nongit)
 624                        die("not in a git directory");
 625                if (given_config_source.use_stdin)
 626                        die("editing stdin is not supported");
 627                if (given_config_source.blob)
 628                        die("editing blobs is not supported");
 629                git_config(git_default_config, NULL);
 630                config_file = given_config_source.file ?
 631                                xstrdup(given_config_source.file) :
 632                                git_pathdup("config");
 633                if (use_global_config) {
 634                        int fd = open(config_file, O_CREAT | O_EXCL | O_WRONLY, 0666);
 635                        if (fd >= 0) {
 636                                char *content = default_user_config();
 637                                write_str_in_full(fd, content);
 638                                free(content);
 639                                close(fd);
 640                        }
 641                        else if (errno != EEXIST)
 642                                die_errno(_("cannot create configuration file %s"), config_file);
 643                }
 644                launch_editor(config_file, NULL, NULL);
 645                free(config_file);
 646        }
 647        else if (actions == ACTION_SET) {
 648                int ret;
 649                check_write();
 650                check_argc(argc, 2, 2);
 651                value = normalize_value(argv[0], argv[1]);
 652                UNLEAK(value);
 653                ret = git_config_set_in_file_gently(given_config_source.file, argv[0], value);
 654                if (ret == CONFIG_NOTHING_SET)
 655                        error(_("cannot overwrite multiple values with a single value\n"
 656                        "       Use a regexp, --add or --replace-all to change %s."), argv[0]);
 657                return ret;
 658        }
 659        else if (actions == ACTION_SET_ALL) {
 660                check_write();
 661                check_argc(argc, 2, 3);
 662                value = normalize_value(argv[0], argv[1]);
 663                UNLEAK(value);
 664                return git_config_set_multivar_in_file_gently(given_config_source.file,
 665                                                              argv[0], value, argv[2], 0);
 666        }
 667        else if (actions == ACTION_ADD) {
 668                check_write();
 669                check_argc(argc, 2, 2);
 670                value = normalize_value(argv[0], argv[1]);
 671                UNLEAK(value);
 672                return git_config_set_multivar_in_file_gently(given_config_source.file,
 673                                                              argv[0], value,
 674                                                              CONFIG_REGEX_NONE, 0);
 675        }
 676        else if (actions == ACTION_REPLACE_ALL) {
 677                check_write();
 678                check_argc(argc, 2, 3);
 679                value = normalize_value(argv[0], argv[1]);
 680                UNLEAK(value);
 681                return git_config_set_multivar_in_file_gently(given_config_source.file,
 682                                                              argv[0], value, argv[2], 1);
 683        }
 684        else if (actions == ACTION_GET) {
 685                check_argc(argc, 1, 2);
 686                return get_value(argv[0], argv[1]);
 687        }
 688        else if (actions == ACTION_GET_ALL) {
 689                do_all = 1;
 690                check_argc(argc, 1, 2);
 691                return get_value(argv[0], argv[1]);
 692        }
 693        else if (actions == ACTION_GET_REGEXP) {
 694                show_keys = 1;
 695                use_key_regexp = 1;
 696                do_all = 1;
 697                check_argc(argc, 1, 2);
 698                return get_value(argv[0], argv[1]);
 699        }
 700        else if (actions == ACTION_GET_URLMATCH) {
 701                check_argc(argc, 2, 2);
 702                return get_urlmatch(argv[0], argv[1]);
 703        }
 704        else if (actions == ACTION_UNSET) {
 705                check_write();
 706                check_argc(argc, 1, 2);
 707                if (argc == 2)
 708                        return git_config_set_multivar_in_file_gently(given_config_source.file,
 709                                                                      argv[0], NULL, argv[1], 0);
 710                else
 711                        return git_config_set_in_file_gently(given_config_source.file,
 712                                                             argv[0], NULL);
 713        }
 714        else if (actions == ACTION_UNSET_ALL) {
 715                check_write();
 716                check_argc(argc, 1, 2);
 717                return git_config_set_multivar_in_file_gently(given_config_source.file,
 718                                                              argv[0], NULL, argv[1], 1);
 719        }
 720        else if (actions == ACTION_RENAME_SECTION) {
 721                int ret;
 722                check_write();
 723                check_argc(argc, 2, 2);
 724                ret = git_config_rename_section_in_file(given_config_source.file,
 725                                                        argv[0], argv[1]);
 726                if (ret < 0)
 727                        return ret;
 728                if (ret == 0)
 729                        die("No such section!");
 730        }
 731        else if (actions == ACTION_REMOVE_SECTION) {
 732                int ret;
 733                check_write();
 734                check_argc(argc, 1, 1);
 735                ret = git_config_rename_section_in_file(given_config_source.file,
 736                                                        argv[0], NULL);
 737                if (ret < 0)
 738                        return ret;
 739                if (ret == 0)
 740                        die("No such section!");
 741        }
 742        else if (actions == ACTION_GET_COLOR) {
 743                check_argc(argc, 1, 2);
 744                get_color(argv[0], argv[1]);
 745        }
 746        else if (actions == ACTION_GET_COLORBOOL) {
 747                check_argc(argc, 1, 2);
 748                if (argc == 2)
 749                        color_stdout_is_tty = git_config_bool("command line", argv[1]);
 750                return get_colorbool(argv[0], argc == 2);
 751        }
 752
 753        return 0;
 754}