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 *tl;
 157        char *global = NULL, *repo_config = NULL;
 158        const char *system_wide = NULL, *local;
 159
 160        local = config_exclusive_filename;
 161        if (!local) {
 162                const char *home = getenv("HOME");
 163                local = repo_config = git_pathdup("config");
 164                if (git_config_global() && home)
 165                        global = xstrdup(mkpath("%s/.gitconfig", home));
 166                if (git_config_system())
 167                        system_wide = git_etc_gitconfig();
 168        }
 169
 170        key = xstrdup(key_);
 171        for (tl=key+strlen(key)-1; tl >= key && *tl != '.'; --tl)
 172                *tl = tolower(*tl);
 173        for (tl=key; *tl && *tl != '.'; ++tl)
 174                *tl = tolower(*tl);
 175
 176        if (use_key_regexp) {
 177                key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
 178                if (regcomp(key_regexp, key, REG_EXTENDED)) {
 179                        fprintf(stderr, "Invalid key pattern: %s\n", key_);
 180                        goto free_strings;
 181                }
 182        }
 183
 184        if (regex_) {
 185                if (regex_[0] == '!') {
 186                        do_not_match = 1;
 187                        regex_++;
 188                }
 189
 190                regexp = (regex_t*)xmalloc(sizeof(regex_t));
 191                if (regcomp(regexp, regex_, REG_EXTENDED)) {
 192                        fprintf(stderr, "Invalid pattern: %s\n", regex_);
 193                        goto free_strings;
 194                }
 195        }
 196
 197        if (do_all && system_wide)
 198                git_config_from_file(show_config, system_wide, NULL);
 199        if (do_all && global)
 200                git_config_from_file(show_config, global, NULL);
 201        if (do_all)
 202                git_config_from_file(show_config, local, NULL);
 203        git_config_from_parameters(show_config, NULL);
 204        if (!do_all && !seen)
 205                git_config_from_file(show_config, local, NULL);
 206        if (!do_all && !seen && global)
 207                git_config_from_file(show_config, global, NULL);
 208        if (!do_all && !seen && system_wide)
 209                git_config_from_file(show_config, system_wide, NULL);
 210
 211        free(key);
 212        if (regexp) {
 213                regfree(regexp);
 214                free(regexp);
 215        }
 216
 217        if (do_all)
 218                ret = !seen;
 219        else
 220                ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
 221
 222free_strings:
 223        free(repo_config);
 224        free(global);
 225        return ret;
 226}
 227
 228static char *normalize_value(const char *key, const char *value)
 229{
 230        char *normalized;
 231
 232        if (!value)
 233                return NULL;
 234
 235        if (types == 0 || types == TYPE_PATH)
 236                /*
 237                 * We don't do normalization for TYPE_PATH here: If
 238                 * the path is like ~/foobar/, we prefer to store
 239                 * "~/foobar/" in the config file, and to expand the ~
 240                 * when retrieving the value.
 241                 */
 242                normalized = xstrdup(value);
 243        else {
 244                normalized = xmalloc(64);
 245                if (types == TYPE_INT) {
 246                        int v = git_config_int(key, value);
 247                        sprintf(normalized, "%d", v);
 248                }
 249                else if (types == TYPE_BOOL)
 250                        sprintf(normalized, "%s",
 251                                git_config_bool(key, value) ? "true" : "false");
 252                else if (types == TYPE_BOOL_OR_INT) {
 253                        int is_bool, v;
 254                        v = git_config_bool_or_int(key, value, &is_bool);
 255                        if (!is_bool)
 256                                sprintf(normalized, "%d", v);
 257                        else
 258                                sprintf(normalized, "%s", v ? "true" : "false");
 259                }
 260        }
 261
 262        return normalized;
 263}
 264
 265static int get_color_found;
 266static const char *get_color_slot;
 267static const char *get_colorbool_slot;
 268static char parsed_color[COLOR_MAXLEN];
 269
 270static int git_get_color_config(const char *var, const char *value, void *cb)
 271{
 272        if (!strcmp(var, get_color_slot)) {
 273                if (!value)
 274                        config_error_nonbool(var);
 275                color_parse(value, var, parsed_color);
 276                get_color_found = 1;
 277        }
 278        return 0;
 279}
 280
 281static void get_color(const char *def_color)
 282{
 283        get_color_found = 0;
 284        parsed_color[0] = '\0';
 285        git_config(git_get_color_config, NULL);
 286
 287        if (!get_color_found && def_color)
 288                color_parse(def_color, "command line", parsed_color);
 289
 290        fputs(parsed_color, stdout);
 291}
 292
 293static int stdout_is_tty;
 294static int get_colorbool_found;
 295static int get_diff_color_found;
 296static int git_get_colorbool_config(const char *var, const char *value,
 297                void *cb)
 298{
 299        if (!strcmp(var, get_colorbool_slot)) {
 300                get_colorbool_found =
 301                        git_config_colorbool(var, value, stdout_is_tty);
 302        }
 303        if (!strcmp(var, "diff.color")) {
 304                get_diff_color_found =
 305                        git_config_colorbool(var, value, stdout_is_tty);
 306        }
 307        if (!strcmp(var, "color.ui")) {
 308                git_use_color_default = git_config_colorbool(var, value, stdout_is_tty);
 309                return 0;
 310        }
 311        return 0;
 312}
 313
 314static int get_colorbool(int print)
 315{
 316        get_colorbool_found = -1;
 317        get_diff_color_found = -1;
 318        git_config(git_get_colorbool_config, NULL);
 319
 320        if (get_colorbool_found < 0) {
 321                if (!strcmp(get_colorbool_slot, "color.diff"))
 322                        get_colorbool_found = get_diff_color_found;
 323                if (get_colorbool_found < 0)
 324                        get_colorbool_found = git_use_color_default;
 325        }
 326
 327        if (print) {
 328                printf("%s\n", get_colorbool_found ? "true" : "false");
 329                return 0;
 330        } else
 331                return get_colorbool_found ? 0 : 1;
 332}
 333
 334int cmd_config(int argc, const char **argv, const char *prefix)
 335{
 336        int nongit = !startup_info->have_repository;
 337        char *value;
 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 + use_local_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 (use_local_config)
 362                config_exclusive_filename = git_pathdup("config");
 363        else if (given_config_file) {
 364                if (!is_absolute_path(given_config_file) && prefix)
 365                        config_exclusive_filename = prefix_filename(prefix,
 366                                                                    strlen(prefix),
 367                                                                    given_config_file);
 368                else
 369                        config_exclusive_filename = given_config_file;
 370        }
 371
 372        if (end_null) {
 373                term = '\0';
 374                delim = '\n';
 375                key_delim = '\n';
 376        }
 377
 378        if (HAS_MULTI_BITS(types)) {
 379                error("only one type at a time.");
 380                usage_with_options(builtin_config_usage, builtin_config_options);
 381        }
 382
 383        if (get_color_slot)
 384            actions |= ACTION_GET_COLOR;
 385        if (get_colorbool_slot)
 386            actions |= ACTION_GET_COLORBOOL;
 387
 388        if ((get_color_slot || get_colorbool_slot) && types) {
 389                error("--get-color and variable type are incoherent");
 390                usage_with_options(builtin_config_usage, builtin_config_options);
 391        }
 392
 393        if (HAS_MULTI_BITS(actions)) {
 394                error("only one action at a time.");
 395                usage_with_options(builtin_config_usage, builtin_config_options);
 396        }
 397        if (actions == 0)
 398                switch (argc) {
 399                case 1: actions = ACTION_GET; break;
 400                case 2: actions = ACTION_SET; break;
 401                case 3: actions = ACTION_SET_ALL; break;
 402                default:
 403                        usage_with_options(builtin_config_usage, builtin_config_options);
 404                }
 405
 406        if (actions == ACTION_LIST) {
 407                check_argc(argc, 0, 0);
 408                if (git_config(show_all_config, NULL) < 0) {
 409                        if (config_exclusive_filename)
 410                                die_errno("unable to read config file '%s'",
 411                                          config_exclusive_filename);
 412                        else
 413                                die("error processing config file(s)");
 414                }
 415        }
 416        else if (actions == ACTION_EDIT) {
 417                check_argc(argc, 0, 0);
 418                if (!config_exclusive_filename && nongit)
 419                        die("not in a git directory");
 420                git_config(git_default_config, NULL);
 421                launch_editor(config_exclusive_filename ?
 422                              config_exclusive_filename : git_path("config"),
 423                              NULL, NULL);
 424        }
 425        else if (actions == ACTION_SET) {
 426                check_argc(argc, 2, 2);
 427                value = normalize_value(argv[0], argv[1]);
 428                return git_config_set(argv[0], value);
 429        }
 430        else if (actions == ACTION_SET_ALL) {
 431                check_argc(argc, 2, 3);
 432                value = normalize_value(argv[0], argv[1]);
 433                return git_config_set_multivar(argv[0], value, argv[2], 0);
 434        }
 435        else if (actions == ACTION_ADD) {
 436                check_argc(argc, 2, 2);
 437                value = normalize_value(argv[0], argv[1]);
 438                return git_config_set_multivar(argv[0], value, "^$", 0);
 439        }
 440        else if (actions == ACTION_REPLACE_ALL) {
 441                check_argc(argc, 2, 3);
 442                value = normalize_value(argv[0], argv[1]);
 443                return git_config_set_multivar(argv[0], value, argv[2], 1);
 444        }
 445        else if (actions == ACTION_GET) {
 446                check_argc(argc, 1, 2);
 447                return get_value(argv[0], argv[1]);
 448        }
 449        else if (actions == ACTION_GET_ALL) {
 450                do_all = 1;
 451                check_argc(argc, 1, 2);
 452                return get_value(argv[0], argv[1]);
 453        }
 454        else if (actions == ACTION_GET_REGEXP) {
 455                show_keys = 1;
 456                use_key_regexp = 1;
 457                do_all = 1;
 458                check_argc(argc, 1, 2);
 459                return get_value(argv[0], argv[1]);
 460        }
 461        else if (actions == ACTION_UNSET) {
 462                check_argc(argc, 1, 2);
 463                if (argc == 2)
 464                        return git_config_set_multivar(argv[0], NULL, argv[1], 0);
 465                else
 466                        return git_config_set(argv[0], NULL);
 467        }
 468        else if (actions == ACTION_UNSET_ALL) {
 469                check_argc(argc, 1, 2);
 470                return git_config_set_multivar(argv[0], NULL, argv[1], 1);
 471        }
 472        else if (actions == ACTION_RENAME_SECTION) {
 473                int ret;
 474                check_argc(argc, 2, 2);
 475                ret = git_config_rename_section(argv[0], argv[1]);
 476                if (ret < 0)
 477                        return ret;
 478                if (ret == 0)
 479                        die("No such section!");
 480        }
 481        else if (actions == ACTION_REMOVE_SECTION) {
 482                int ret;
 483                check_argc(argc, 1, 1);
 484                ret = git_config_rename_section(argv[0], NULL);
 485                if (ret < 0)
 486                        return ret;
 487                if (ret == 0)
 488                        die("No such section!");
 489        }
 490        else if (actions == ACTION_GET_COLOR) {
 491                get_color(argv[0]);
 492        }
 493        else if (actions == ACTION_GET_COLORBOOL) {
 494                if (argc == 1)
 495                        stdout_is_tty = git_config_bool("command line", argv[0]);
 496                else if (argc == 0)
 497                        stdout_is_tty = isatty(1);
 498                return get_colorbool(argc != 0);
 499        }
 500
 501        return 0;
 502}