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