Andrew's git - gitweb.git/blob

c046f54829b5ad361d81b2eceae5738c8f59ab21
   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 use_key_regexp;
  17static int do_all;
  18static int do_not_match;
  19static char delim = '=';
  20static char key_delim = ' ';
  21static char term = '\n';
  22
  23static int use_global_config, use_system_config, use_local_config;
  24static const char *given_config_file;
  25static int actions, types;
  26static const char *get_color_slot, *get_colorbool_slot;
  27static int end_null;
  28static int respect_includes = -1;
  29
  30#define ACTION_GET (1<<0)
  31#define ACTION_GET_ALL (1<<1)
  32#define ACTION_GET_REGEXP (1<<2)
  33#define ACTION_REPLACE_ALL (1<<3)
  34#define ACTION_ADD (1<<4)
  35#define ACTION_UNSET (1<<5)
  36#define ACTION_UNSET_ALL (1<<6)
  37#define ACTION_RENAME_SECTION (1<<7)
  38#define ACTION_REMOVE_SECTION (1<<8)
  39#define ACTION_LIST (1<<9)
  40#define ACTION_EDIT (1<<10)
  41#define ACTION_SET (1<<11)
  42#define ACTION_SET_ALL (1<<12)
  43#define ACTION_GET_COLOR (1<<13)
  44#define ACTION_GET_COLORBOOL (1<<14)
  45#define ACTION_GET_URLMATCH (1<<15)
  46
  47#define TYPE_BOOL (1<<0)
  48#define TYPE_INT (1<<1)
  49#define TYPE_BOOL_OR_INT (1<<2)
  50#define TYPE_PATH (1<<3)
  51
  52static struct option builtin_config_options[] = {
  53        OPT_GROUP(N_("Config file location")),
  54        OPT_BOOLEAN(0, "global", &use_global_config, N_("use global config file")),
  55        OPT_BOOLEAN(0, "system", &use_system_config, N_("use system config file")),
  56        OPT_BOOLEAN(0, "local", &use_local_config, N_("use repository config file")),
  57        OPT_STRING('f', "file", &given_config_file, N_("file"), N_("use given config file")),
  58        OPT_GROUP(N_("Action")),
  59        OPT_BIT(0, "get", &actions, N_("get value: name [value-regex]"), ACTION_GET),
  60        OPT_BIT(0, "get-all", &actions, N_("get all values: key [value-regex]"), ACTION_GET_ALL),
  61        OPT_BIT(0, "get-regexp", &actions, N_("get values for regexp: name-regex [value-regex]"), ACTION_GET_REGEXP),
  62        OPT_BIT(0, "get-urlmatch", &actions, N_("get value specific for the URL: section[.var] URL"), ACTION_GET_URLMATCH),
  63        OPT_BIT(0, "replace-all", &actions, N_("replace all matching variables: name value [value_regex]"), ACTION_REPLACE_ALL),
  64        OPT_BIT(0, "add", &actions, N_("add a new variable: name value"), ACTION_ADD),
  65        OPT_BIT(0, "unset", &actions, N_("remove a variable: name [value-regex]"), ACTION_UNSET),
  66        OPT_BIT(0, "unset-all", &actions, N_("remove all matches: name [value-regex]"), ACTION_UNSET_ALL),
  67        OPT_BIT(0, "rename-section", &actions, N_("rename section: old-name new-name"), ACTION_RENAME_SECTION),
  68        OPT_BIT(0, "remove-section", &actions, N_("remove a section: name"), ACTION_REMOVE_SECTION),
  69        OPT_BIT('l', "list", &actions, N_("list all"), ACTION_LIST),
  70        OPT_BIT('e', "edit", &actions, N_("open an editor"), ACTION_EDIT),
  71        OPT_STRING(0, "get-color", &get_color_slot, N_("slot"), N_("find the color configured: [default]")),
  72        OPT_STRING(0, "get-colorbool", &get_colorbool_slot, N_("slot"), N_("find the color setting: [stdout-is-tty]")),
  73        OPT_GROUP(N_("Type")),
  74        OPT_BIT(0, "bool", &types, N_("value is \"true\" or \"false\""), TYPE_BOOL),
  75        OPT_BIT(0, "int", &types, N_("value is decimal number"), TYPE_INT),
  76        OPT_BIT(0, "bool-or-int", &types, N_("value is --bool or --int"), TYPE_BOOL_OR_INT),
  77        OPT_BIT(0, "path", &types, N_("value is a path (file or directory name)"), TYPE_PATH),
  78        OPT_GROUP(N_("Other")),
  79        OPT_BOOLEAN('z', "null", &end_null, N_("terminate values with NUL byte")),
  80        OPT_BOOL(0, "includes", &respect_includes, N_("respect include directives on lookup")),
  81        OPT_END(),
  82};
  83
  84static void check_argc(int argc, int min, int max) {
  85        if (argc >= min && argc <= max)
  86                return;
  87        error("wrong number of arguments");
  88        usage_with_options(builtin_config_usage, builtin_config_options);
  89}
  90
  91static int show_all_config(const char *key_, const char *value_, void *cb)
  92{
  93        if (value_)
  94                printf("%s%c%s%c", key_, delim, value_, term);
  95        else
  96                printf("%s%c", key_, term);
  97        return 0;
  98}
  99
 100struct strbuf_list {
 101        struct strbuf *items;
 102        int nr;
 103        int alloc;
 104};
 105
 106static int format_config(struct strbuf *buf, const char *key_, const char *value_)
 107{
 108        int must_free_vptr = 0;
 109        int must_print_delim = 0;
 110        char value[256];
 111        const char *vptr = value;
 112
 113        strbuf_init(buf, 0);
 114
 115        if (show_keys) {
 116                strbuf_addstr(buf, key_);
 117                must_print_delim = 1;
 118        }
 119        if (types == TYPE_INT)
 120                sprintf(value, "%d", git_config_int(key_, value_ ? value_ : ""));
 121        else if (types == TYPE_BOOL)
 122                vptr = git_config_bool(key_, value_) ? "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                        vptr = v ? "true" : "false";
 128                else
 129                        sprintf(value, "%d", v);
 130        } else if (types == TYPE_PATH) {
 131                if (git_config_pathname(&vptr, key_, value_) < 0)
 132                        return -1;
 133                must_free_vptr = 1;
 134        } else if (value_) {
 135                vptr = value_;
 136        } else {
 137                /* Just show the key name */
 138                vptr = "";
 139                must_print_delim = 0;
 140        }
 141
 142        if (must_print_delim)
 143                strbuf_addch(buf, key_delim);
 144        strbuf_addstr(buf, vptr);
 145        strbuf_addch(buf, term);
 146
 147        if (must_free_vptr)
 148                free((char *)vptr);
 149        return 0;
 150}
 151
 152static int collect_config(const char *key_, const char *value_, void *cb)
 153{
 154        struct strbuf_list *values = cb;
 155
 156        if (!use_key_regexp && strcmp(key_, key))
 157                return 0;
 158        if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
 159                return 0;
 160        if (regexp != NULL &&
 161            (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
 162                return 0;
 163
 164        ALLOC_GROW(values->items, values->nr + 1, values->alloc);
 165
 166        return format_config(&values->items[values->nr++], key_, value_);
 167}
 168
 169static int get_value(const char *key_, const char *regex_)
 170{
 171        int ret = CONFIG_GENERIC_ERROR;
 172        struct strbuf_list values = {NULL};
 173        int i;
 174
 175        if (use_key_regexp) {
 176                char *tl;
 177
 178                /*
 179                 * NEEDSWORK: this naive pattern lowercasing obviously does not
 180                 * work for more complex patterns like "^[^.]*Foo.*bar".
 181                 * Perhaps we should deprecate this altogether someday.
 182                 */
 183
 184                key = xstrdup(key_);
 185                for (tl = key + strlen(key) - 1;
 186                     tl >= key && *tl != '.';
 187                     tl--)
 188                        *tl = tolower(*tl);
 189                for (tl = key; *tl && *tl != '.'; tl++)
 190                        *tl = tolower(*tl);
 191
 192                key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
 193                if (regcomp(key_regexp, key, REG_EXTENDED)) {
 194                        fprintf(stderr, "Invalid key pattern: %s\n", key_);
 195                        free(key_regexp);
 196                        key_regexp = NULL;
 197                        ret = CONFIG_INVALID_PATTERN;
 198                        goto free_strings;
 199                }
 200        } else {
 201                if (git_config_parse_key(key_, &key, NULL)) {
 202                        ret = CONFIG_INVALID_KEY;
 203                        goto free_strings;
 204                }
 205        }
 206
 207        if (regex_) {
 208                if (regex_[0] == '!') {
 209                        do_not_match = 1;
 210                        regex_++;
 211                }
 212
 213                regexp = (regex_t*)xmalloc(sizeof(regex_t));
 214                if (regcomp(regexp, regex_, REG_EXTENDED)) {
 215                        fprintf(stderr, "Invalid pattern: %s\n", regex_);
 216                        free(regexp);
 217                        regexp = NULL;
 218                        ret = CONFIG_INVALID_PATTERN;
 219                        goto free_strings;
 220                }
 221        }
 222
 223        git_config_with_options(collect_config, &values,
 224                                given_config_file, respect_includes);
 225
 226        ret = !values.nr;
 227
 228        for (i = 0; i < values.nr; i++) {
 229                struct strbuf *buf = values.items + i;
 230                if (do_all || i == values.nr - 1)
 231                        fwrite(buf->buf, 1, buf->len, stdout);
 232                strbuf_release(buf);
 233        }
 234        free(values.items);
 235
 236free_strings:
 237        free(key);
 238        if (key_regexp) {
 239                regfree(key_regexp);
 240                free(key_regexp);
 241        }
 242        if (regexp) {
 243                regfree(regexp);
 244                free(regexp);
 245        }
 246
 247        return ret;
 248}
 249
 250static char *normalize_value(const char *key, const char *value)
 251{
 252        char *normalized;
 253
 254        if (!value)
 255                return NULL;
 256
 257        if (types == 0 || types == TYPE_PATH)
 258                /*
 259                 * We don't do normalization for TYPE_PATH here: If
 260                 * the path is like ~/foobar/, we prefer to store
 261                 * "~/foobar/" in the config file, and to expand the ~
 262                 * when retrieving the value.
 263                 */
 264                normalized = xstrdup(value);
 265        else {
 266                normalized = xmalloc(64);
 267                if (types == TYPE_INT) {
 268                        int v = git_config_int(key, value);
 269                        sprintf(normalized, "%d", v);
 270                }
 271                else if (types == TYPE_BOOL)
 272                        sprintf(normalized, "%s",
 273                                git_config_bool(key, value) ? "true" : "false");
 274                else if (types == TYPE_BOOL_OR_INT) {
 275                        int is_bool, v;
 276                        v = git_config_bool_or_int(key, value, &is_bool);
 277                        if (!is_bool)
 278                                sprintf(normalized, "%d", v);
 279                        else
 280                                sprintf(normalized, "%s", v ? "true" : "false");
 281                }
 282        }
 283
 284        return normalized;
 285}
 286
 287static int get_color_found;
 288static const char *get_color_slot;
 289static const char *get_colorbool_slot;
 290static char parsed_color[COLOR_MAXLEN];
 291
 292static int git_get_color_config(const char *var, const char *value, void *cb)
 293{
 294        if (!strcmp(var, get_color_slot)) {
 295                if (!value)
 296                        config_error_nonbool(var);
 297                color_parse(value, var, parsed_color);
 298                get_color_found = 1;
 299        }
 300        return 0;
 301}
 302
 303static void get_color(const char *def_color)
 304{
 305        get_color_found = 0;
 306        parsed_color[0] = '\0';
 307        git_config_with_options(git_get_color_config, NULL,
 308                                given_config_file, respect_includes);
 309
 310        if (!get_color_found && def_color)
 311                color_parse(def_color, "command line", parsed_color);
 312
 313        fputs(parsed_color, stdout);
 314}
 315
 316static int get_colorbool_found;
 317static int get_diff_color_found;
 318static int get_color_ui_found;
 319static int git_get_colorbool_config(const char *var, const char *value,
 320                void *cb)
 321{
 322        if (!strcmp(var, get_colorbool_slot))
 323                get_colorbool_found = git_config_colorbool(var, value);
 324        else if (!strcmp(var, "diff.color"))
 325                get_diff_color_found = git_config_colorbool(var, value);
 326        else if (!strcmp(var, "color.ui"))
 327                get_color_ui_found = git_config_colorbool(var, value);
 328        return 0;
 329}
 330
 331static int get_colorbool(int print)
 332{
 333        get_colorbool_found = -1;
 334        get_diff_color_found = -1;
 335        git_config_with_options(git_get_colorbool_config, NULL,
 336                                given_config_file, respect_includes);
 337
 338        if (get_colorbool_found < 0) {
 339                if (!strcmp(get_colorbool_slot, "color.diff"))
 340                        get_colorbool_found = get_diff_color_found;
 341                if (get_colorbool_found < 0)
 342                        get_colorbool_found = get_color_ui_found;
 343        }
 344
 345        get_colorbool_found = want_color(get_colorbool_found);
 346
 347        if (print) {
 348                printf("%s\n", get_colorbool_found ? "true" : "false");
 349                return 0;
 350        } else
 351                return get_colorbool_found ? 0 : 1;
 352}
 353
 354struct urlmatch_current_candidate_value {
 355        char value_is_null;
 356        struct strbuf value;
 357};
 358
 359static int urlmatch_collect_fn(const char *var, const char *value, void *cb)
 360{
 361        struct string_list *values = cb;
 362        struct string_list_item *item = string_list_insert(values, var);
 363        struct urlmatch_current_candidate_value *matched = item->util;
 364
 365        if (!matched) {
 366                matched = xmalloc(sizeof(*matched));
 367                strbuf_init(&matched->value, 0);
 368                item->util = matched;
 369        } else {
 370                strbuf_reset(&matched->value);
 371        }
 372
 373        if (value) {
 374                strbuf_addstr(&matched->value, value);
 375                matched->value_is_null = 0;
 376        } else {
 377                matched->value_is_null = 1;
 378        }
 379        return 0;
 380}
 381
 382static char *dup_downcase(const char *string)
 383{
 384        char *result;
 385        size_t len, i;
 386
 387        len = strlen(string);
 388        result = xmalloc(len + 1);
 389        for (i = 0; i < len; i++)
 390                result[i] = tolower(string[i]);
 391        result[i] = '\0';
 392        return result;
 393}
 394
 395static int get_urlmatch(const char *var, const char *url)
 396{
 397        char *section_tail;
 398        struct string_list_item *item;
 399        struct urlmatch_config config = { STRING_LIST_INIT_DUP };
 400        struct string_list values = STRING_LIST_INIT_DUP;
 401
 402        config.collect_fn = urlmatch_collect_fn;
 403        config.cascade_fn = NULL;
 404        config.cb = &values;
 405
 406        if (!url_normalize(url, &config.url))
 407                die(config.url.err);
 408
 409        config.section = dup_downcase(var);
 410        section_tail = strchr(config.section, '.');
 411        if (section_tail) {
 412                *section_tail = '\0';
 413                config.key = section_tail + 1;
 414                show_keys = 0;
 415        } else {
 416                config.key = NULL;
 417                show_keys = 1;
 418        }
 419
 420        git_config_with_options(urlmatch_config_entry, &config,
 421                                given_config_file, respect_includes);
 422
 423        for_each_string_list_item(item, &values) {
 424                struct urlmatch_current_candidate_value *matched = item->util;
 425                struct strbuf key = STRBUF_INIT;
 426                struct strbuf buf = STRBUF_INIT;
 427
 428                strbuf_addstr(&key, item->string);
 429                format_config(&buf, key.buf,
 430                              matched->value_is_null ? NULL : matched->value.buf);
 431                fwrite(buf.buf, 1, buf.len, stdout);
 432                strbuf_release(&key);
 433                strbuf_release(&buf);
 434
 435                strbuf_release(&matched->value);
 436        }
 437        string_list_clear(&config.vars, 1);
 438        string_list_clear(&values, 1);
 439        free(config.url.url);
 440
 441        free((void *)config.section);
 442        return 0;
 443}
 444
 445int cmd_config(int argc, const char **argv, const char *prefix)
 446{
 447        int nongit = !startup_info->have_repository;
 448        char *value;
 449
 450        given_config_file = getenv(CONFIG_ENVIRONMENT);
 451
 452        argc = parse_options(argc, argv, prefix, builtin_config_options,
 453                             builtin_config_usage,
 454                             PARSE_OPT_STOP_AT_NON_OPTION);
 455
 456        if (use_global_config + use_system_config + use_local_config + !!given_config_file > 1) {
 457                error("only one config file at a time.");
 458                usage_with_options(builtin_config_usage, builtin_config_options);
 459        }
 460
 461        if (use_global_config) {
 462                char *user_config = NULL;
 463                char *xdg_config = NULL;
 464
 465                home_config_paths(&user_config, &xdg_config, "config");
 466
 467                if (!user_config)
 468                        /*
 469                         * It is unknown if HOME/.gitconfig exists, so
 470                         * we do not know if we should write to XDG
 471                         * location; error out even if XDG_CONFIG_HOME
 472                         * is set and points at a sane location.
 473                         */
 474                        die("$HOME not set");
 475
 476                if (access_or_warn(user_config, R_OK) &&
 477                    xdg_config && !access_or_warn(xdg_config, R_OK))
 478                        given_config_file = xdg_config;
 479                else
 480                        given_config_file = user_config;
 481        }
 482        else if (use_system_config)
 483                given_config_file = git_etc_gitconfig();
 484        else if (use_local_config)
 485                given_config_file = git_pathdup("config");
 486        else if (given_config_file) {
 487                if (!is_absolute_path(given_config_file) && prefix)
 488                        given_config_file =
 489                                xstrdup(prefix_filename(prefix,
 490                                                        strlen(prefix),
 491                                                        given_config_file));
 492        }
 493
 494        if (respect_includes == -1)
 495                respect_includes = !given_config_file;
 496
 497        if (end_null) {
 498                term = '\0';
 499                delim = '\n';
 500                key_delim = '\n';
 501        }
 502
 503        if (HAS_MULTI_BITS(types)) {
 504                error("only one type at a time.");
 505                usage_with_options(builtin_config_usage, builtin_config_options);
 506        }
 507
 508        if (get_color_slot)
 509            actions |= ACTION_GET_COLOR;
 510        if (get_colorbool_slot)
 511            actions |= ACTION_GET_COLORBOOL;
 512
 513        if ((get_color_slot || get_colorbool_slot) && types) {
 514                error("--get-color and variable type are incoherent");
 515                usage_with_options(builtin_config_usage, builtin_config_options);
 516        }
 517
 518        if (HAS_MULTI_BITS(actions)) {
 519                error("only one action at a time.");
 520                usage_with_options(builtin_config_usage, builtin_config_options);
 521        }
 522        if (actions == 0)
 523                switch (argc) {
 524                case 1: actions = ACTION_GET; break;
 525                case 2: actions = ACTION_SET; break;
 526                case 3: actions = ACTION_SET_ALL; break;
 527                default:
 528                        usage_with_options(builtin_config_usage, builtin_config_options);
 529                }
 530
 531        if (actions == ACTION_LIST) {
 532                check_argc(argc, 0, 0);
 533                if (git_config_with_options(show_all_config, NULL,
 534                                            given_config_file,
 535                                            respect_includes) < 0) {
 536                        if (given_config_file)
 537                                die_errno("unable to read config file '%s'",
 538                                          given_config_file);
 539                        else
 540                                die("error processing config file(s)");
 541                }
 542        }
 543        else if (actions == ACTION_EDIT) {
 544                check_argc(argc, 0, 0);
 545                if (!given_config_file && nongit)
 546                        die("not in a git directory");
 547                git_config(git_default_config, NULL);
 548                launch_editor(given_config_file ?
 549                              given_config_file : git_path("config"),
 550                              NULL, NULL);
 551        }
 552        else if (actions == ACTION_SET) {
 553                int ret;
 554                check_argc(argc, 2, 2);
 555                value = normalize_value(argv[0], argv[1]);
 556                ret = git_config_set_in_file(given_config_file, argv[0], value);
 557                if (ret == CONFIG_NOTHING_SET)
 558                        error("cannot overwrite multiple values with a single value\n"
 559                        "       Use a regexp, --add or --replace-all to change %s.", argv[0]);
 560                return ret;
 561        }
 562        else if (actions == ACTION_SET_ALL) {
 563                check_argc(argc, 2, 3);
 564                value = normalize_value(argv[0], argv[1]);
 565                return git_config_set_multivar_in_file(given_config_file,
 566                                                       argv[0], value, argv[2], 0);
 567        }
 568        else if (actions == ACTION_ADD) {
 569                check_argc(argc, 2, 2);
 570                value = normalize_value(argv[0], argv[1]);
 571                return git_config_set_multivar_in_file(given_config_file,
 572                                                       argv[0], value, "^$", 0);
 573        }
 574        else if (actions == ACTION_REPLACE_ALL) {
 575                check_argc(argc, 2, 3);
 576                value = normalize_value(argv[0], argv[1]);
 577                return git_config_set_multivar_in_file(given_config_file,
 578                                                       argv[0], value, argv[2], 1);
 579        }
 580        else if (actions == ACTION_GET) {
 581                check_argc(argc, 1, 2);
 582                return get_value(argv[0], argv[1]);
 583        }
 584        else if (actions == ACTION_GET_ALL) {
 585                do_all = 1;
 586                check_argc(argc, 1, 2);
 587                return get_value(argv[0], argv[1]);
 588        }
 589        else if (actions == ACTION_GET_REGEXP) {
 590                show_keys = 1;
 591                use_key_regexp = 1;
 592                do_all = 1;
 593                check_argc(argc, 1, 2);
 594                return get_value(argv[0], argv[1]);
 595        }
 596        else if (actions == ACTION_GET_URLMATCH) {
 597                check_argc(argc, 2, 2);
 598                return get_urlmatch(argv[0], argv[1]);
 599        }
 600        else if (actions == ACTION_UNSET) {
 601                check_argc(argc, 1, 2);
 602                if (argc == 2)
 603                        return git_config_set_multivar_in_file(given_config_file,
 604                                                               argv[0], NULL, argv[1], 0);
 605                else
 606                        return git_config_set_in_file(given_config_file,
 607                                                      argv[0], NULL);
 608        }
 609        else if (actions == ACTION_UNSET_ALL) {
 610                check_argc(argc, 1, 2);
 611                return git_config_set_multivar_in_file(given_config_file,
 612                                                       argv[0], NULL, argv[1], 1);
 613        }
 614        else if (actions == ACTION_RENAME_SECTION) {
 615                int ret;
 616                check_argc(argc, 2, 2);
 617                ret = git_config_rename_section_in_file(given_config_file,
 618                                                        argv[0], argv[1]);
 619                if (ret < 0)
 620                        return ret;
 621                if (ret == 0)
 622                        die("No such section!");
 623        }
 624        else if (actions == ACTION_REMOVE_SECTION) {
 625                int ret;
 626                check_argc(argc, 1, 1);
 627                ret = git_config_rename_section_in_file(given_config_file,
 628                                                        argv[0], NULL);
 629                if (ret < 0)
 630                        return ret;
 631                if (ret == 0)
 632                        die("No such section!");
 633        }
 634        else if (actions == ACTION_GET_COLOR) {
 635                get_color(argv[0]);
 636        }
 637        else if (actions == ACTION_GET_COLORBOOL) {
 638                if (argc == 1)
 639                        color_stdout_is_tty = git_config_bool("command line", argv[0]);
 640                return get_colorbool(argc != 0);
 641        }
 642
 643        return 0;
 644}
 645
 646int cmd_repo_config(int argc, const char **argv, const char *prefix)
 647{
 648        fprintf(stderr, "WARNING: git repo-config is deprecated in favor of git config.\n");
 649        return cmd_config(argc, argv, prefix);
 650}