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