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;
  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("Config file location"),
  52        OPT_BOOLEAN(0, "global", &use_global_config, "use global config file"),
  53        OPT_BOOLEAN(0, "system", &use_system_config, "use system config file"),
  54        OPT_BOOLEAN(0, "local", &use_local_config, "use repository config file"),
  55        OPT_STRING('f', "file", &given_config_file, "file", "use given config file"),
  56        OPT_GROUP("Action"),
  57        OPT_BIT(0, "get", &actions, "get value: name [value-regex]", ACTION_GET),
  58        OPT_BIT(0, "get-all", &actions, "get all values: key [value-regex]", ACTION_GET_ALL),
  59        OPT_BIT(0, "get-regexp", &actions, "get values for regexp: name-regex [value-regex]", ACTION_GET_REGEXP),
  60        OPT_BIT(0, "replace-all", &actions, "replace all matching variables: name value [value_regex]", ACTION_REPLACE_ALL),
  61        OPT_BIT(0, "add", &actions, "adds a new variable: name value", ACTION_ADD),
  62        OPT_BIT(0, "unset", &actions, "removes a variable: name [value-regex]", ACTION_UNSET),
  63        OPT_BIT(0, "unset-all", &actions, "removes all matches: name [value-regex]", ACTION_UNSET_ALL),
  64        OPT_BIT(0, "rename-section", &actions, "rename section: old-name new-name", ACTION_RENAME_SECTION),
  65        OPT_BIT(0, "remove-section", &actions, "remove a section: name", ACTION_REMOVE_SECTION),
  66        OPT_BIT('l', "list", &actions, "list all", ACTION_LIST),
  67        OPT_BIT('e', "edit", &actions, "opens an editor", ACTION_EDIT),
  68        OPT_STRING(0, "get-color", &get_color_slot, "slot", "find the color configured: [default]"),
  69        OPT_STRING(0, "get-colorbool", &get_colorbool_slot, "slot", "find the color setting: [stdout-is-tty]"),
  70        OPT_GROUP("Type"),
  71        OPT_BIT(0, "bool", &types, "value is \"true\" or \"false\"", TYPE_BOOL),
  72        OPT_BIT(0, "int", &types, "value is decimal number", TYPE_INT),
  73        OPT_BIT(0, "bool-or-int", &types, "value is --bool or --int", TYPE_BOOL_OR_INT),
  74        OPT_BIT(0, "path", &types, "value is a path (file or directory name)", TYPE_PATH),
  75        OPT_GROUP("Other"),
  76        OPT_BOOLEAN('z', "null", &end_null, "terminate values with NUL byte"),
  77        OPT_END(),
  78};
  79
  80static void check_argc(int argc, int min, int max) {
  81        if (argc >= min && argc <= max)
  82                return;
  83        error("wrong number of arguments");
  84        usage_with_options(builtin_config_usage, builtin_config_options);
  85}
  86
  87static int show_all_config(const char *key_, const char *value_, void *cb)
  88{
  89        if (value_)
  90                printf("%s%c%s%c", key_, delim, value_, term);
  91        else
  92                printf("%s%c", key_, term);
  93        return 0;
  94}
  95
  96static int show_config(const char *key_, const char *value_, void *cb)
  97{
  98        char value[256];
  99        const char *vptr = value;
 100        int must_free_vptr = 0;
 101        int dup_error = 0;
 102
 103        if (!use_key_regexp && strcmp(key_, key))
 104                return 0;
 105        if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
 106                return 0;
 107        if (regexp != NULL &&
 108            (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
 109                return 0;
 110
 111        if (show_keys) {
 112                if (value_)
 113                        printf("%s%c", key_, key_delim);
 114                else
 115                        printf("%s", key_);
 116        }
 117        if (seen && !do_all)
 118                dup_error = 1;
 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                git_config_pathname(&vptr, key_, value_);
 132                must_free_vptr = 1;
 133        }
 134        else
 135                vptr = value_?value_:"";
 136        seen++;
 137        if (dup_error) {
 138                error("More than one value for the key %s: %s",
 139                                key_, vptr);
 140        }
 141        else
 142                printf("%s%c", vptr, term);
 143        if (must_free_vptr)
 144                /* If vptr must be freed, it's a pointer to a
 145                 * dynamically allocated buffer, it's safe to cast to
 146                 * const.
 147                */
 148                free((char *)vptr);
 149
 150        return 0;
 151}
 152
 153static int get_value(const char *key_, const char *regex_)
 154{
 155        int ret = -1;
 156        char *global = NULL, *repo_config = NULL;
 157        const char *system_wide = NULL, *local;
 158
 159        local = config_exclusive_filename;
 160        if (!local) {
 161                const char *home = getenv("HOME");
 162                local = repo_config = git_pathdup("config");
 163                if (home)
 164                        global = xstrdup(mkpath("%s/.gitconfig", home));
 165                if (git_config_system())
 166                        system_wide = git_etc_gitconfig();
 167        }
 168
 169        if (use_key_regexp) {
 170                char *tl;
 171
 172                /*
 173                 * NEEDSWORK: this naive pattern lowercasing obviously does not
 174                 * work for more complex patterns like "^[^.]*Foo.*bar".
 175                 * Perhaps we should deprecate this altogether someday.
 176                 */
 177
 178                key = xstrdup(key_);
 179                for (tl = key + strlen(key) - 1;
 180                     tl >= key && *tl != '.';
 181                     tl--)
 182                        *tl = tolower(*tl);
 183                for (tl = key; *tl && *tl != '.'; tl++)
 184                        *tl = tolower(*tl);
 185
 186                key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
 187                if (regcomp(key_regexp, key, REG_EXTENDED)) {
 188                        fprintf(stderr, "Invalid key pattern: %s\n", key_);
 189                        free(key);
 190                        goto free_strings;
 191                }
 192        } else {
 193                if (git_config_parse_key(key_, &key, NULL))
 194                        goto free_strings;
 195        }
 196
 197        if (regex_) {
 198                if (regex_[0] == '!') {
 199                        do_not_match = 1;
 200                        regex_++;
 201                }
 202
 203                regexp = (regex_t*)xmalloc(sizeof(regex_t));
 204                if (regcomp(regexp, regex_, REG_EXTENDED)) {
 205                        fprintf(stderr, "Invalid pattern: %s\n", regex_);
 206                        goto free_strings;
 207                }
 208        }
 209
 210        if (do_all && system_wide)
 211                git_config_from_file(show_config, system_wide, NULL);
 212        if (do_all && global)
 213                git_config_from_file(show_config, global, NULL);
 214        if (do_all)
 215                git_config_from_file(show_config, local, NULL);
 216        git_config_from_parameters(show_config, NULL);
 217        if (!do_all && !seen)
 218                git_config_from_file(show_config, local, NULL);
 219        if (!do_all && !seen && global)
 220                git_config_from_file(show_config, global, NULL);
 221        if (!do_all && !seen && system_wide)
 222                git_config_from_file(show_config, system_wide, NULL);
 223
 224        free(key);
 225        if (regexp) {
 226                regfree(regexp);
 227                free(regexp);
 228        }
 229
 230        if (do_all)
 231                ret = !seen;
 232        else
 233                ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
 234
 235free_strings:
 236        free(repo_config);
 237        free(global);
 238        return ret;
 239}
 240
 241static char *normalize_value(const char *key, const char *value)
 242{
 243        char *normalized;
 244
 245        if (!value)
 246                return NULL;
 247
 248        if (types == 0 || types == TYPE_PATH)
 249                /*
 250                 * We don't do normalization for TYPE_PATH here: If
 251                 * the path is like ~/foobar/, we prefer to store
 252                 * "~/foobar/" in the config file, and to expand the ~
 253                 * when retrieving the value.
 254                 */
 255                normalized = xstrdup(value);
 256        else {
 257                normalized = xmalloc(64);
 258                if (types == TYPE_INT) {
 259                        int v = git_config_int(key, value);
 260                        sprintf(normalized, "%d", v);
 261                }
 262                else if (types == TYPE_BOOL)
 263                        sprintf(normalized, "%s",
 264                                git_config_bool(key, value) ? "true" : "false");
 265                else if (types == TYPE_BOOL_OR_INT) {
 266                        int is_bool, v;
 267                        v = git_config_bool_or_int(key, value, &is_bool);
 268                        if (!is_bool)
 269                                sprintf(normalized, "%d", v);
 270                        else
 271                                sprintf(normalized, "%s", v ? "true" : "false");
 272                }
 273        }
 274
 275        return normalized;
 276}
 277
 278static int get_color_found;
 279static const char *get_color_slot;
 280static const char *get_colorbool_slot;
 281static char parsed_color[COLOR_MAXLEN];
 282
 283static int git_get_color_config(const char *var, const char *value, void *cb)
 284{
 285        if (!strcmp(var, get_color_slot)) {
 286                if (!value)
 287                        config_error_nonbool(var);
 288                color_parse(value, var, parsed_color);
 289                get_color_found = 1;
 290        }
 291        return 0;
 292}
 293
 294static void get_color(const char *def_color)
 295{
 296        get_color_found = 0;
 297        parsed_color[0] = '\0';
 298        git_config(git_get_color_config, NULL);
 299
 300        if (!get_color_found && def_color)
 301                color_parse(def_color, "command line", parsed_color);
 302
 303        fputs(parsed_color, stdout);
 304}
 305
 306static int stdout_is_tty;
 307static int get_colorbool_found;
 308static int get_diff_color_found;
 309static int git_get_colorbool_config(const char *var, const char *value,
 310                void *cb)
 311{
 312        if (!strcmp(var, get_colorbool_slot)) {
 313                get_colorbool_found =
 314                        git_config_colorbool(var, value, stdout_is_tty);
 315        }
 316        if (!strcmp(var, "diff.color")) {
 317                get_diff_color_found =
 318                        git_config_colorbool(var, value, stdout_is_tty);
 319        }
 320        if (!strcmp(var, "color.ui")) {
 321                git_use_color_default = git_config_colorbool(var, value, stdout_is_tty);
 322                return 0;
 323        }
 324        return 0;
 325}
 326
 327static int get_colorbool(int print)
 328{
 329        get_colorbool_found = -1;
 330        get_diff_color_found = -1;
 331        git_config(git_get_colorbool_config, NULL);
 332
 333        if (get_colorbool_found < 0) {
 334                if (!strcmp(get_colorbool_slot, "color.diff"))
 335                        get_colorbool_found = get_diff_color_found;
 336                if (get_colorbool_found < 0)
 337                        get_colorbool_found = git_use_color_default;
 338        }
 339
 340        if (print) {
 341                printf("%s\n", get_colorbool_found ? "true" : "false");
 342                return 0;
 343        } else
 344                return get_colorbool_found ? 0 : 1;
 345}
 346
 347int cmd_config(int argc, const char **argv, const char *prefix)
 348{
 349        int nongit = !startup_info->have_repository;
 350        char *value;
 351
 352        config_exclusive_filename = getenv(CONFIG_ENVIRONMENT);
 353
 354        argc = parse_options(argc, argv, prefix, builtin_config_options,
 355                             builtin_config_usage,
 356                             PARSE_OPT_STOP_AT_NON_OPTION);
 357
 358        if (use_global_config + use_system_config + use_local_config + !!given_config_file > 1) {
 359                error("only one config file at a time.");
 360                usage_with_options(builtin_config_usage, builtin_config_options);
 361        }
 362
 363        if (use_global_config) {
 364                char *home = getenv("HOME");
 365                if (home) {
 366                        char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
 367                        config_exclusive_filename = user_config;
 368                } else {
 369                        die("$HOME not set");
 370                }
 371        }
 372        else if (use_system_config)
 373                config_exclusive_filename = git_etc_gitconfig();
 374        else if (use_local_config)
 375                config_exclusive_filename = git_pathdup("config");
 376        else if (given_config_file) {
 377                if (!is_absolute_path(given_config_file) && prefix)
 378                        config_exclusive_filename = prefix_filename(prefix,
 379                                                                    strlen(prefix),
 380                                                                    given_config_file);
 381                else
 382                        config_exclusive_filename = given_config_file;
 383        }
 384
 385        if (end_null) {
 386                term = '\0';
 387                delim = '\n';
 388                key_delim = '\n';
 389        }
 390
 391        if (HAS_MULTI_BITS(types)) {
 392                error("only one type at a time.");
 393                usage_with_options(builtin_config_usage, builtin_config_options);
 394        }
 395
 396        if (get_color_slot)
 397            actions |= ACTION_GET_COLOR;
 398        if (get_colorbool_slot)
 399            actions |= ACTION_GET_COLORBOOL;
 400
 401        if ((get_color_slot || get_colorbool_slot) && types) {
 402                error("--get-color and variable type are incoherent");
 403                usage_with_options(builtin_config_usage, builtin_config_options);
 404        }
 405
 406        if (HAS_MULTI_BITS(actions)) {
 407                error("only one action at a time.");
 408                usage_with_options(builtin_config_usage, builtin_config_options);
 409        }
 410        if (actions == 0)
 411                switch (argc) {
 412                case 1: actions = ACTION_GET; break;
 413                case 2: actions = ACTION_SET; break;
 414                case 3: actions = ACTION_SET_ALL; break;
 415                default:
 416                        usage_with_options(builtin_config_usage, builtin_config_options);
 417                }
 418
 419        if (actions == ACTION_LIST) {
 420                check_argc(argc, 0, 0);
 421                if (git_config(show_all_config, NULL) < 0) {
 422                        if (config_exclusive_filename)
 423                                die_errno("unable to read config file '%s'",
 424                                          config_exclusive_filename);
 425                        else
 426                                die("error processing config file(s)");
 427                }
 428        }
 429        else if (actions == ACTION_EDIT) {
 430                check_argc(argc, 0, 0);
 431                if (!config_exclusive_filename && nongit)
 432                        die("not in a git directory");
 433                git_config(git_default_config, NULL);
 434                launch_editor(config_exclusive_filename ?
 435                              config_exclusive_filename : git_path("config"),
 436                              NULL, NULL);
 437        }
 438        else if (actions == ACTION_SET) {
 439                int ret;
 440                check_argc(argc, 2, 2);
 441                value = normalize_value(argv[0], argv[1]);
 442                ret = git_config_set(argv[0], value);
 443                if (ret == CONFIG_NOTHING_SET)
 444                        error("cannot overwrite multiple values with a single value\n"
 445                        "       Use a regexp, --add or --set-all to change %s.", argv[0]);
 446                return ret;
 447        }
 448        else if (actions == ACTION_SET_ALL) {
 449                check_argc(argc, 2, 3);
 450                value = normalize_value(argv[0], argv[1]);
 451                return git_config_set_multivar(argv[0], value, argv[2], 0);
 452        }
 453        else if (actions == ACTION_ADD) {
 454                check_argc(argc, 2, 2);
 455                value = normalize_value(argv[0], argv[1]);
 456                return git_config_set_multivar(argv[0], value, "^$", 0);
 457        }
 458        else if (actions == ACTION_REPLACE_ALL) {
 459                check_argc(argc, 2, 3);
 460                value = normalize_value(argv[0], argv[1]);
 461                return git_config_set_multivar(argv[0], value, argv[2], 1);
 462        }
 463        else if (actions == ACTION_GET) {
 464                check_argc(argc, 1, 2);
 465                return get_value(argv[0], argv[1]);
 466        }
 467        else if (actions == ACTION_GET_ALL) {
 468                do_all = 1;
 469                check_argc(argc, 1, 2);
 470                return get_value(argv[0], argv[1]);
 471        }
 472        else if (actions == ACTION_GET_REGEXP) {
 473                show_keys = 1;
 474                use_key_regexp = 1;
 475                do_all = 1;
 476                check_argc(argc, 1, 2);
 477                return get_value(argv[0], argv[1]);
 478        }
 479        else if (actions == ACTION_UNSET) {
 480                check_argc(argc, 1, 2);
 481                if (argc == 2)
 482                        return git_config_set_multivar(argv[0], NULL, argv[1], 0);
 483                else
 484                        return git_config_set(argv[0], NULL);
 485        }
 486        else if (actions == ACTION_UNSET_ALL) {
 487                check_argc(argc, 1, 2);
 488                return git_config_set_multivar(argv[0], NULL, argv[1], 1);
 489        }
 490        else if (actions == ACTION_RENAME_SECTION) {
 491                int ret;
 492                check_argc(argc, 2, 2);
 493                ret = git_config_rename_section(argv[0], argv[1]);
 494                if (ret < 0)
 495                        return ret;
 496                if (ret == 0)
 497                        die("No such section!");
 498        }
 499        else if (actions == ACTION_REMOVE_SECTION) {
 500                int ret;
 501                check_argc(argc, 1, 1);
 502                ret = git_config_rename_section(argv[0], NULL);
 503                if (ret < 0)
 504                        return ret;
 505                if (ret == 0)
 506                        die("No such section!");
 507        }
 508        else if (actions == ACTION_GET_COLOR) {
 509                get_color(argv[0]);
 510        }
 511        else if (actions == ACTION_GET_COLORBOOL) {
 512                if (argc == 1)
 513                        stdout_is_tty = git_config_bool("command line", argv[0]);
 514                else if (argc == 0)
 515                        stdout_is_tty = isatty(1);
 516                return get_colorbool(argc != 0);
 517        }
 518
 519        return 0;
 520}
 521
 522int cmd_repo_config(int argc, const char **argv, const char *prefix)
 523{
 524        fprintf(stderr, "WARNING: git repo-config is deprecated in favor of git config.\n");
 525        return cmd_config(argc, argv, prefix);
 526}