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        git_config_from_file(show_config, local, NULL);
 201        if (!do_all && !seen && global)
 202                git_config_from_file(show_config, global, NULL);
 203        if (!do_all && !seen && system_wide)
 204                git_config_from_file(show_config, system_wide, NULL);
 205
 206        free(key);
 207        if (regexp) {
 208                regfree(regexp);
 209                free(regexp);
 210        }
 211
 212        if (do_all)
 213                ret = !seen;
 214        else
 215                ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
 216
 217free_strings:
 218        free(repo_config);
 219        free(global);
 220        return ret;
 221}
 222
 223static char *normalize_value(const char *key, const char *value)
 224{
 225        char *normalized;
 226
 227        if (!value)
 228                return NULL;
 229
 230        if (types == 0 || types == TYPE_PATH)
 231                /*
 232                 * We don't do normalization for TYPE_PATH here: If
 233                 * the path is like ~/foobar/, we prefer to store
 234                 * "~/foobar/" in the config file, and to expand the ~
 235                 * when retrieving the value.
 236                 */
 237                normalized = xstrdup(value);
 238        else {
 239                normalized = xmalloc(64);
 240                if (types == TYPE_INT) {
 241                        int v = git_config_int(key, value);
 242                        sprintf(normalized, "%d", v);
 243                }
 244                else if (types == TYPE_BOOL)
 245                        sprintf(normalized, "%s",
 246                                git_config_bool(key, value) ? "true" : "false");
 247                else if (types == TYPE_BOOL_OR_INT) {
 248                        int is_bool, v;
 249                        v = git_config_bool_or_int(key, value, &is_bool);
 250                        if (!is_bool)
 251                                sprintf(normalized, "%d", v);
 252                        else
 253                                sprintf(normalized, "%s", v ? "true" : "false");
 254                }
 255        }
 256
 257        return normalized;
 258}
 259
 260static int get_color_found;
 261static const char *get_color_slot;
 262static const char *get_colorbool_slot;
 263static char parsed_color[COLOR_MAXLEN];
 264
 265static int git_get_color_config(const char *var, const char *value, void *cb)
 266{
 267        if (!strcmp(var, get_color_slot)) {
 268                if (!value)
 269                        config_error_nonbool(var);
 270                color_parse(value, var, parsed_color);
 271                get_color_found = 1;
 272        }
 273        return 0;
 274}
 275
 276static void get_color(const char *def_color)
 277{
 278        get_color_found = 0;
 279        parsed_color[0] = '\0';
 280        git_config(git_get_color_config, NULL);
 281
 282        if (!get_color_found && def_color)
 283                color_parse(def_color, "command line", parsed_color);
 284
 285        fputs(parsed_color, stdout);
 286}
 287
 288static int stdout_is_tty;
 289static int get_colorbool_found;
 290static int get_diff_color_found;
 291static int git_get_colorbool_config(const char *var, const char *value,
 292                void *cb)
 293{
 294        if (!strcmp(var, get_colorbool_slot)) {
 295                get_colorbool_found =
 296                        git_config_colorbool(var, value, stdout_is_tty);
 297        }
 298        if (!strcmp(var, "diff.color")) {
 299                get_diff_color_found =
 300                        git_config_colorbool(var, value, stdout_is_tty);
 301        }
 302        if (!strcmp(var, "color.ui")) {
 303                git_use_color_default = git_config_colorbool(var, value, stdout_is_tty);
 304                return 0;
 305        }
 306        return 0;
 307}
 308
 309static int get_colorbool(int print)
 310{
 311        get_colorbool_found = -1;
 312        get_diff_color_found = -1;
 313        git_config(git_get_colorbool_config, NULL);
 314
 315        if (get_colorbool_found < 0) {
 316                if (!strcmp(get_colorbool_slot, "color.diff"))
 317                        get_colorbool_found = get_diff_color_found;
 318                if (get_colorbool_found < 0)
 319                        get_colorbool_found = git_use_color_default;
 320        }
 321
 322        if (print) {
 323                printf("%s\n", get_colorbool_found ? "true" : "false");
 324                return 0;
 325        } else
 326                return get_colorbool_found ? 0 : 1;
 327}
 328
 329int cmd_config(int argc, const char **argv, const char *unused_prefix)
 330{
 331        int nongit;
 332        char *value;
 333        const char *prefix = setup_git_directory_gently(&nongit);
 334
 335        config_exclusive_filename = getenv(CONFIG_ENVIRONMENT);
 336
 337        argc = parse_options(argc, argv, prefix, builtin_config_options,
 338                             builtin_config_usage,
 339                             PARSE_OPT_STOP_AT_NON_OPTION);
 340
 341        if (use_global_config + use_system_config + !!given_config_file > 1) {
 342                error("only one config file at a time.");
 343                usage_with_options(builtin_config_usage, builtin_config_options);
 344        }
 345
 346        if (use_global_config) {
 347                char *home = getenv("HOME");
 348                if (home) {
 349                        char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
 350                        config_exclusive_filename = user_config;
 351                } else {
 352                        die("$HOME not set");
 353                }
 354        }
 355        else if (use_system_config)
 356                config_exclusive_filename = git_etc_gitconfig();
 357        else if (given_config_file) {
 358                if (!is_absolute_path(given_config_file) && prefix)
 359                        config_exclusive_filename = prefix_filename(prefix,
 360                                                                    strlen(prefix),
 361                                                                    argv[2]);
 362                else
 363                        config_exclusive_filename = given_config_file;
 364        }
 365
 366        if (end_null) {
 367                term = '\0';
 368                delim = '\n';
 369                key_delim = '\n';
 370        }
 371
 372        if (HAS_MULTI_BITS(types)) {
 373                error("only one type at a time.");
 374                usage_with_options(builtin_config_usage, builtin_config_options);
 375        }
 376
 377        if (get_color_slot)
 378            actions |= ACTION_GET_COLOR;
 379        if (get_colorbool_slot)
 380            actions |= ACTION_GET_COLORBOOL;
 381
 382        if ((get_color_slot || get_colorbool_slot) && types) {
 383                error("--get-color and variable type are incoherent");
 384                usage_with_options(builtin_config_usage, builtin_config_options);
 385        }
 386
 387        if (HAS_MULTI_BITS(actions)) {
 388                error("only one action at a time.");
 389                usage_with_options(builtin_config_usage, builtin_config_options);
 390        }
 391        if (actions == 0)
 392                switch (argc) {
 393                case 1: actions = ACTION_GET; break;
 394                case 2: actions = ACTION_SET; break;
 395                case 3: actions = ACTION_SET_ALL; break;
 396                default:
 397                        usage_with_options(builtin_config_usage, builtin_config_options);
 398                }
 399
 400        if (actions == ACTION_LIST) {
 401                check_argc(argc, 0, 0);
 402                if (git_config(show_all_config, NULL) < 0) {
 403                        if (config_exclusive_filename)
 404                                die_errno("unable to read config file '%s'",
 405                                          config_exclusive_filename);
 406                        else
 407                                die("error processing config file(s)");
 408                }
 409        }
 410        else if (actions == ACTION_EDIT) {
 411                check_argc(argc, 0, 0);
 412                if (!config_exclusive_filename && nongit)
 413                        die("not in a git directory");
 414                git_config(git_default_config, NULL);
 415                launch_editor(config_exclusive_filename ?
 416                              config_exclusive_filename : git_path("config"),
 417                              NULL, NULL);
 418        }
 419        else if (actions == ACTION_SET) {
 420                check_argc(argc, 2, 2);
 421                value = normalize_value(argv[0], argv[1]);
 422                return git_config_set(argv[0], value);
 423        }
 424        else if (actions == ACTION_SET_ALL) {
 425                check_argc(argc, 2, 3);
 426                value = normalize_value(argv[0], argv[1]);
 427                return git_config_set_multivar(argv[0], value, argv[2], 0);
 428        }
 429        else if (actions == ACTION_ADD) {
 430                check_argc(argc, 2, 2);
 431                value = normalize_value(argv[0], argv[1]);
 432                return git_config_set_multivar(argv[0], value, "^$", 0);
 433        }
 434        else if (actions == ACTION_REPLACE_ALL) {
 435                check_argc(argc, 2, 3);
 436                value = normalize_value(argv[0], argv[1]);
 437                return git_config_set_multivar(argv[0], value, argv[2], 1);
 438        }
 439        else if (actions == ACTION_GET) {
 440                check_argc(argc, 1, 2);
 441                return get_value(argv[0], argv[1]);
 442        }
 443        else if (actions == ACTION_GET_ALL) {
 444                do_all = 1;
 445                check_argc(argc, 1, 2);
 446                return get_value(argv[0], argv[1]);
 447        }
 448        else if (actions == ACTION_GET_REGEXP) {
 449                show_keys = 1;
 450                use_key_regexp = 1;
 451                do_all = 1;
 452                check_argc(argc, 1, 2);
 453                return get_value(argv[0], argv[1]);
 454        }
 455        else if (actions == ACTION_UNSET) {
 456                check_argc(argc, 1, 2);
 457                if (argc == 2)
 458                        return git_config_set_multivar(argv[0], NULL, argv[1], 0);
 459                else
 460                        return git_config_set(argv[0], NULL);
 461        }
 462        else if (actions == ACTION_UNSET_ALL) {
 463                check_argc(argc, 1, 2);
 464                return git_config_set_multivar(argv[0], NULL, argv[1], 1);
 465        }
 466        else if (actions == ACTION_RENAME_SECTION) {
 467                int ret;
 468                check_argc(argc, 2, 2);
 469                ret = git_config_rename_section(argv[0], argv[1]);
 470                if (ret < 0)
 471                        return ret;
 472                if (ret == 0)
 473                        die("No such section!");
 474        }
 475        else if (actions == ACTION_REMOVE_SECTION) {
 476                int ret;
 477                check_argc(argc, 1, 1);
 478                ret = git_config_rename_section(argv[0], NULL);
 479                if (ret < 0)
 480                        return ret;
 481                if (ret == 0)
 482                        die("No such section!");
 483        }
 484        else if (actions == ACTION_GET_COLOR) {
 485                get_color(argv[0]);
 486        }
 487        else if (actions == ACTION_GET_COLORBOOL) {
 488                if (argc == 1)
 489                        stdout_is_tty = git_config_bool("command line", argv[0]);
 490                else if (argc == 0)
 491                        stdout_is_tty = isatty(1);
 492                return get_colorbool(argc != 0);
 493        }
 494
 495        return 0;
 496}