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 get_colorbool_found;
 307static int get_diff_color_found;
 308static int get_color_ui_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 = git_config_colorbool(var, value);
 314        else if (!strcmp(var, "diff.color"))
 315                get_diff_color_found = git_config_colorbool(var, value);
 316        else if (!strcmp(var, "color.ui"))
 317                get_color_ui_found = git_config_colorbool(var, value);
 318        return 0;
 319}
 320
 321static int get_colorbool(int print)
 322{
 323        get_colorbool_found = -1;
 324        get_diff_color_found = -1;
 325        git_config(git_get_colorbool_config, NULL);
 326
 327        if (get_colorbool_found < 0) {
 328                if (!strcmp(get_colorbool_slot, "color.diff"))
 329                        get_colorbool_found = get_diff_color_found;
 330                if (get_colorbool_found < 0)
 331                        get_colorbool_found = get_color_ui_found;
 332        }
 333
 334        get_colorbool_found = want_color(get_colorbool_found);
 335
 336        if (print) {
 337                printf("%s\n", get_colorbool_found ? "true" : "false");
 338                return 0;
 339        } else
 340                return get_colorbool_found ? 0 : 1;
 341}
 342
 343int cmd_config(int argc, const char **argv, const char *prefix)
 344{
 345        int nongit = !startup_info->have_repository;
 346        char *value;
 347
 348        config_exclusive_filename = getenv(CONFIG_ENVIRONMENT);
 349
 350        argc = parse_options(argc, argv, prefix, builtin_config_options,
 351                             builtin_config_usage,
 352                             PARSE_OPT_STOP_AT_NON_OPTION);
 353
 354        if (use_global_config + use_system_config + use_local_config + !!given_config_file > 1) {
 355                error("only one config file at a time.");
 356                usage_with_options(builtin_config_usage, builtin_config_options);
 357        }
 358
 359        if (use_global_config) {
 360                char *home = getenv("HOME");
 361                if (home) {
 362                        char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
 363                        config_exclusive_filename = user_config;
 364                } else {
 365                        die("$HOME not set");
 366                }
 367        }
 368        else if (use_system_config)
 369                config_exclusive_filename = git_etc_gitconfig();
 370        else if (use_local_config)
 371                config_exclusive_filename = git_pathdup("config");
 372        else if (given_config_file) {
 373                if (!is_absolute_path(given_config_file) && prefix)
 374                        config_exclusive_filename = prefix_filename(prefix,
 375                                                                    strlen(prefix),
 376                                                                    given_config_file);
 377                else
 378                        config_exclusive_filename = given_config_file;
 379        }
 380
 381        if (end_null) {
 382                term = '\0';
 383                delim = '\n';
 384                key_delim = '\n';
 385        }
 386
 387        if (HAS_MULTI_BITS(types)) {
 388                error("only one type at a time.");
 389                usage_with_options(builtin_config_usage, builtin_config_options);
 390        }
 391
 392        if (get_color_slot)
 393            actions |= ACTION_GET_COLOR;
 394        if (get_colorbool_slot)
 395            actions |= ACTION_GET_COLORBOOL;
 396
 397        if ((get_color_slot || get_colorbool_slot) && types) {
 398                error("--get-color and variable type are incoherent");
 399                usage_with_options(builtin_config_usage, builtin_config_options);
 400        }
 401
 402        if (HAS_MULTI_BITS(actions)) {
 403                error("only one action at a time.");
 404                usage_with_options(builtin_config_usage, builtin_config_options);
 405        }
 406        if (actions == 0)
 407                switch (argc) {
 408                case 1: actions = ACTION_GET; break;
 409                case 2: actions = ACTION_SET; break;
 410                case 3: actions = ACTION_SET_ALL; break;
 411                default:
 412                        usage_with_options(builtin_config_usage, builtin_config_options);
 413                }
 414
 415        if (actions == ACTION_LIST) {
 416                check_argc(argc, 0, 0);
 417                if (git_config(show_all_config, NULL) < 0) {
 418                        if (config_exclusive_filename)
 419                                die_errno("unable to read config file '%s'",
 420                                          config_exclusive_filename);
 421                        else
 422                                die("error processing config file(s)");
 423                }
 424        }
 425        else if (actions == ACTION_EDIT) {
 426                check_argc(argc, 0, 0);
 427                if (!config_exclusive_filename && nongit)
 428                        die("not in a git directory");
 429                git_config(git_default_config, NULL);
 430                launch_editor(config_exclusive_filename ?
 431                              config_exclusive_filename : git_path("config"),
 432                              NULL, NULL);
 433        }
 434        else if (actions == ACTION_SET) {
 435                int ret;
 436                check_argc(argc, 2, 2);
 437                value = normalize_value(argv[0], argv[1]);
 438                ret = git_config_set(argv[0], value);
 439                if (ret == CONFIG_NOTHING_SET)
 440                        error("cannot overwrite multiple values with a single value\n"
 441                        "       Use a regexp, --add or --set-all to change %s.", argv[0]);
 442                return ret;
 443        }
 444        else if (actions == ACTION_SET_ALL) {
 445                check_argc(argc, 2, 3);
 446                value = normalize_value(argv[0], argv[1]);
 447                return git_config_set_multivar(argv[0], value, argv[2], 0);
 448        }
 449        else if (actions == ACTION_ADD) {
 450                check_argc(argc, 2, 2);
 451                value = normalize_value(argv[0], argv[1]);
 452                return git_config_set_multivar(argv[0], value, "^$", 0);
 453        }
 454        else if (actions == ACTION_REPLACE_ALL) {
 455                check_argc(argc, 2, 3);
 456                value = normalize_value(argv[0], argv[1]);
 457                return git_config_set_multivar(argv[0], value, argv[2], 1);
 458        }
 459        else if (actions == ACTION_GET) {
 460                check_argc(argc, 1, 2);
 461                return get_value(argv[0], argv[1]);
 462        }
 463        else if (actions == ACTION_GET_ALL) {
 464                do_all = 1;
 465                check_argc(argc, 1, 2);
 466                return get_value(argv[0], argv[1]);
 467        }
 468        else if (actions == ACTION_GET_REGEXP) {
 469                show_keys = 1;
 470                use_key_regexp = 1;
 471                do_all = 1;
 472                check_argc(argc, 1, 2);
 473                return get_value(argv[0], argv[1]);
 474        }
 475        else if (actions == ACTION_UNSET) {
 476                check_argc(argc, 1, 2);
 477                if (argc == 2)
 478                        return git_config_set_multivar(argv[0], NULL, argv[1], 0);
 479                else
 480                        return git_config_set(argv[0], NULL);
 481        }
 482        else if (actions == ACTION_UNSET_ALL) {
 483                check_argc(argc, 1, 2);
 484                return git_config_set_multivar(argv[0], NULL, argv[1], 1);
 485        }
 486        else if (actions == ACTION_RENAME_SECTION) {
 487                int ret;
 488                check_argc(argc, 2, 2);
 489                ret = git_config_rename_section(argv[0], argv[1]);
 490                if (ret < 0)
 491                        return ret;
 492                if (ret == 0)
 493                        die("No such section!");
 494        }
 495        else if (actions == ACTION_REMOVE_SECTION) {
 496                int ret;
 497                check_argc(argc, 1, 1);
 498                ret = git_config_rename_section(argv[0], NULL);
 499                if (ret < 0)
 500                        return ret;
 501                if (ret == 0)
 502                        die("No such section!");
 503        }
 504        else if (actions == ACTION_GET_COLOR) {
 505                get_color(argv[0]);
 506        }
 507        else if (actions == ACTION_GET_COLORBOOL) {
 508                if (argc == 1)
 509                        color_stdout_is_tty = git_config_bool("command line", argv[0]);
 510                return get_colorbool(argc != 0);
 511        }
 512
 513        return 0;
 514}
 515
 516int cmd_repo_config(int argc, const char **argv, const char *prefix)
 517{
 518        fprintf(stderr, "WARNING: git repo-config is deprecated in favor of git config.\n");
 519        return cmd_config(argc, argv, prefix);
 520}