Andrew's git - gitweb.git/blob

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