Andrew's git / gitweb.git / builtin-config.c
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builtin-config.con commit Make usage of windows.h lean and mean (435bdf8)
   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
  49static struct option builtin_config_options[] = {
  50        OPT_GROUP("Config file location"),
  51        OPT_BOOLEAN(0, "global", &use_global_config, "use global config file"),
  52        OPT_BOOLEAN(0, "system", &use_system_config, "use system config file"),
  53        OPT_STRING('f', "file", &given_config_file, "FILE", "use given config file"),
  54        OPT_GROUP("Action"),
  55        OPT_BIT(0, "get", &actions, "get value: name [value-regex]", ACTION_GET),
  56        OPT_BIT(0, "get-all", &actions, "get all values: key [value-regex]", ACTION_GET_ALL),
  57        OPT_BIT(0, "get-regexp", &actions, "get values for regexp: name-regex [value-regex]", ACTION_GET_REGEXP),
  58        OPT_BIT(0, "replace-all", &actions, "replace all matching variables: name value [value_regex]", ACTION_REPLACE_ALL),
  59        OPT_BIT(0, "add", &actions, "adds a new variable: name value", ACTION_ADD),
  60        OPT_BIT(0, "unset", &actions, "removes a variable: name [value-regex]", ACTION_UNSET),
  61        OPT_BIT(0, "unset-all", &actions, "removes all matches: name [value-regex]", ACTION_UNSET_ALL),
  62        OPT_BIT(0, "rename-section", &actions, "rename section: old-name new-name", ACTION_RENAME_SECTION),
  63        OPT_BIT(0, "remove-section", &actions, "remove a section: name", ACTION_REMOVE_SECTION),
  64        OPT_BIT('l', "list", &actions, "list all", ACTION_LIST),
  65        OPT_BIT('e', "edit", &actions, "opens an editor", ACTION_EDIT),
  66        OPT_STRING(0, "get-color", &get_color_slot, "slot", "find the color configured: [default]"),
  67        OPT_STRING(0, "get-colorbool", &get_colorbool_slot, "slot", "find the color setting: [stdout-is-tty]"),
  68        OPT_GROUP("Type"),
  69        OPT_BIT(0, "bool", &types, "value is \"true\" or \"false\"", TYPE_BOOL),
  70        OPT_BIT(0, "int", &types, "value is decimal number", TYPE_INT),
  71        OPT_BIT(0, "bool-or-int", &types, "value is --bool or --int", TYPE_BOOL_OR_INT),
  72        OPT_GROUP("Other"),
  73        OPT_BOOLEAN('z', "null", &end_null, "terminate values with NUL byte"),
  74        OPT_END(),
  75};
  76
  77static void check_argc(int argc, int min, int max) {
  78        if (argc >= min && argc <= max)
  79                return;
  80        error("wrong number of arguments");
  81        usage_with_options(builtin_config_usage, builtin_config_options);
  82}
  83
  84static int show_all_config(const char *key_, const char *value_, void *cb)
  85{
  86        if (value_)
  87                printf("%s%c%s%c", key_, delim, value_, term);
  88        else
  89                printf("%s%c", key_, term);
  90        return 0;
  91}
  92
  93static int show_config(const char *key_, const char *value_, void *cb)
  94{
  95        char value[256];
  96        const char *vptr = value;
  97        int dup_error = 0;
  98
  99        if (!use_key_regexp && strcmp(key_, key))
 100                return 0;
 101        if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
 102                return 0;
 103        if (regexp != NULL &&
 104            (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
 105                return 0;
 106
 107        if (show_keys) {
 108                if (value_)
 109                        printf("%s%c", key_, key_delim);
 110                else
 111                        printf("%s", key_);
 112        }
 113        if (seen && !do_all)
 114                dup_error = 1;
 115        if (types == TYPE_INT)
 116                sprintf(value, "%d", git_config_int(key_, value_?value_:""));
 117        else if (types == TYPE_BOOL)
 118                vptr = git_config_bool(key_, value_) ? "true" : "false";
 119        else if (types == TYPE_BOOL_OR_INT) {
 120                int is_bool, v;
 121                v = git_config_bool_or_int(key_, value_, &is_bool);
 122                if (is_bool)
 123                        vptr = v ? "true" : "false";
 124                else
 125                        sprintf(value, "%d", v);
 126        }
 127        else
 128                vptr = value_?value_:"";
 129        seen++;
 130        if (dup_error) {
 131                error("More than one value for the key %s: %s",
 132                                key_, vptr);
 133        }
 134        else
 135                printf("%s%c", vptr, term);
 136
 137        return 0;
 138}
 139
 140static int get_value(const char *key_, const char *regex_)
 141{
 142        int ret = -1;
 143        char *tl;
 144        char *global = NULL, *repo_config = NULL;
 145        const char *system_wide = NULL, *local;
 146
 147        local = config_exclusive_filename;
 148        if (!local) {
 149                const char *home = getenv("HOME");
 150                local = repo_config = git_pathdup("config");
 151                if (git_config_global() && home)
 152                        global = xstrdup(mkpath("%s/.gitconfig", home));
 153                if (git_config_system())
 154                        system_wide = git_etc_gitconfig();
 155        }
 156
 157        key = xstrdup(key_);
 158        for (tl=key+strlen(key)-1; tl >= key && *tl != '.'; --tl)
 159                *tl = tolower(*tl);
 160        for (tl=key; *tl && *tl != '.'; ++tl)
 161                *tl = tolower(*tl);
 162
 163        if (use_key_regexp) {
 164                key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
 165                if (regcomp(key_regexp, key, REG_EXTENDED)) {
 166                        fprintf(stderr, "Invalid key pattern: %s\n", key_);
 167                        goto free_strings;
 168                }
 169        }
 170
 171        if (regex_) {
 172                if (regex_[0] == '!') {
 173                        do_not_match = 1;
 174                        regex_++;
 175                }
 176
 177                regexp = (regex_t*)xmalloc(sizeof(regex_t));
 178                if (regcomp(regexp, regex_, REG_EXTENDED)) {
 179                        fprintf(stderr, "Invalid pattern: %s\n", regex_);
 180                        goto free_strings;
 181                }
 182        }
 183
 184        if (do_all && system_wide)
 185                git_config_from_file(show_config, system_wide, NULL);
 186        if (do_all && global)
 187                git_config_from_file(show_config, global, NULL);
 188        git_config_from_file(show_config, local, NULL);
 189        if (!do_all && !seen && global)
 190                git_config_from_file(show_config, global, NULL);
 191        if (!do_all && !seen && system_wide)
 192                git_config_from_file(show_config, system_wide, NULL);
 193
 194        free(key);
 195        if (regexp) {
 196                regfree(regexp);
 197                free(regexp);
 198        }
 199
 200        if (do_all)
 201                ret = !seen;
 202        else
 203                ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
 204
 205free_strings:
 206        free(repo_config);
 207        free(global);
 208        return ret;
 209}
 210
 211static char *normalize_value(const char *key, const char *value)
 212{
 213        char *normalized;
 214
 215        if (!value)
 216                return NULL;
 217
 218        if (types == 0)
 219                normalized = xstrdup(value);
 220        else {
 221                normalized = xmalloc(64);
 222                if (types == TYPE_INT) {
 223                        int v = git_config_int(key, value);
 224                        sprintf(normalized, "%d", v);
 225                }
 226                else if (types == TYPE_BOOL)
 227                        sprintf(normalized, "%s",
 228                                git_config_bool(key, value) ? "true" : "false");
 229                else if (types == TYPE_BOOL_OR_INT) {
 230                        int is_bool, v;
 231                        v = git_config_bool_or_int(key, value, &is_bool);
 232                        if (!is_bool)
 233                                sprintf(normalized, "%d", v);
 234                        else
 235                                sprintf(normalized, "%s", v ? "true" : "false");
 236                }
 237        }
 238
 239        return normalized;
 240}
 241
 242static int get_color_found;
 243static const char *get_color_slot;
 244static const char *get_colorbool_slot;
 245static char parsed_color[COLOR_MAXLEN];
 246
 247static int git_get_color_config(const char *var, const char *value, void *cb)
 248{
 249        if (!strcmp(var, get_color_slot)) {
 250                if (!value)
 251                        config_error_nonbool(var);
 252                color_parse(value, var, parsed_color);
 253                get_color_found = 1;
 254        }
 255        return 0;
 256}
 257
 258static void get_color(const char *def_color)
 259{
 260        get_color_found = 0;
 261        parsed_color[0] = '\0';
 262        git_config(git_get_color_config, NULL);
 263
 264        if (!get_color_found && def_color)
 265                color_parse(def_color, "command line", parsed_color);
 266
 267        fputs(parsed_color, stdout);
 268}
 269
 270static int stdout_is_tty;
 271static int get_colorbool_found;
 272static int get_diff_color_found;
 273static int git_get_colorbool_config(const char *var, const char *value,
 274                void *cb)
 275{
 276        if (!strcmp(var, get_colorbool_slot)) {
 277                get_colorbool_found =
 278                        git_config_colorbool(var, value, stdout_is_tty);
 279        }
 280        if (!strcmp(var, "diff.color")) {
 281                get_diff_color_found =
 282                        git_config_colorbool(var, value, stdout_is_tty);
 283        }
 284        if (!strcmp(var, "color.ui")) {
 285                git_use_color_default = git_config_colorbool(var, value, stdout_is_tty);
 286                return 0;
 287        }
 288        return 0;
 289}
 290
 291static int get_colorbool(int print)
 292{
 293        get_colorbool_found = -1;
 294        get_diff_color_found = -1;
 295        git_config(git_get_colorbool_config, NULL);
 296
 297        if (get_colorbool_found < 0) {
 298                if (!strcmp(get_colorbool_slot, "color.diff"))
 299                        get_colorbool_found = get_diff_color_found;
 300                if (get_colorbool_found < 0)
 301                        get_colorbool_found = git_use_color_default;
 302        }
 303
 304        if (print) {
 305                printf("%s\n", get_colorbool_found ? "true" : "false");
 306                return 0;
 307        } else
 308                return get_colorbool_found ? 0 : 1;
 309}
 310
 311int cmd_config(int argc, const char **argv, const char *unused_prefix)
 312{
 313        int nongit;
 314        char *value;
 315        const char *prefix = setup_git_directory_gently(&nongit);
 316
 317        config_exclusive_filename = getenv(CONFIG_ENVIRONMENT);
 318
 319        argc = parse_options(argc, argv, prefix, builtin_config_options,
 320                             builtin_config_usage,
 321                             PARSE_OPT_STOP_AT_NON_OPTION);
 322
 323        if (use_global_config + use_system_config + !!given_config_file > 1) {
 324                error("only one config file at a time.");
 325                usage_with_options(builtin_config_usage, builtin_config_options);
 326        }
 327
 328        if (use_global_config) {
 329                char *home = getenv("HOME");
 330                if (home) {
 331                        char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
 332                        config_exclusive_filename = user_config;
 333                } else {
 334                        die("$HOME not set");
 335                }
 336        }
 337        else if (use_system_config)
 338                config_exclusive_filename = git_etc_gitconfig();
 339        else if (given_config_file) {
 340                if (!is_absolute_path(given_config_file) && prefix)
 341                        config_exclusive_filename = prefix_filename(prefix,
 342                                                                    strlen(prefix),
 343                                                                    argv[2]);
 344                else
 345                        config_exclusive_filename = given_config_file;
 346        }
 347
 348        if (end_null) {
 349                term = '\0';
 350                delim = '\n';
 351                key_delim = '\n';
 352        }
 353
 354        if (HAS_MULTI_BITS(types)) {
 355                error("only one type at a time.");
 356                usage_with_options(builtin_config_usage, builtin_config_options);
 357        }
 358
 359        if (get_color_slot)
 360            actions |= ACTION_GET_COLOR;
 361        if (get_colorbool_slot)
 362            actions |= ACTION_GET_COLORBOOL;
 363
 364        if ((get_color_slot || get_colorbool_slot) && types) {
 365                error("--get-color and variable type are incoherent");
 366                usage_with_options(builtin_config_usage, builtin_config_options);
 367        }
 368
 369        if (HAS_MULTI_BITS(actions)) {
 370                error("only one action at a time.");
 371                usage_with_options(builtin_config_usage, builtin_config_options);
 372        }
 373        if (actions == 0)
 374                switch (argc) {
 375                case 1: actions = ACTION_GET; break;
 376                case 2: actions = ACTION_SET; break;
 377                case 3: actions = ACTION_SET_ALL; break;
 378                default:
 379                        usage_with_options(builtin_config_usage, builtin_config_options);
 380                }
 381
 382        if (actions == ACTION_LIST) {
 383                check_argc(argc, 0, 0);
 384                if (git_config(show_all_config, NULL) < 0) {
 385                        if (config_exclusive_filename)
 386                                die_errno("unable to read config file '%s'",
 387                                          config_exclusive_filename);
 388                        else
 389                                die("error processing config file(s)");
 390                }
 391        }
 392        else if (actions == ACTION_EDIT) {
 393                check_argc(argc, 0, 0);
 394                if (!config_exclusive_filename && nongit)
 395                        die("not in a git directory");
 396                git_config(git_default_config, NULL);
 397                launch_editor(config_exclusive_filename ?
 398                              config_exclusive_filename : git_path("config"),
 399                              NULL, NULL);
 400        }
 401        else if (actions == ACTION_SET) {
 402                check_argc(argc, 2, 2);
 403                value = normalize_value(argv[0], argv[1]);
 404                return git_config_set(argv[0], value);
 405        }
 406        else if (actions == ACTION_SET_ALL) {
 407                check_argc(argc, 2, 3);
 408                value = normalize_value(argv[0], argv[1]);
 409                return git_config_set_multivar(argv[0], value, argv[2], 0);
 410        }
 411        else if (actions == ACTION_ADD) {
 412                check_argc(argc, 2, 2);
 413                value = normalize_value(argv[0], argv[1]);
 414                return git_config_set_multivar(argv[0], value, "^$", 0);
 415        }
 416        else if (actions == ACTION_REPLACE_ALL) {
 417                check_argc(argc, 2, 3);
 418                value = normalize_value(argv[0], argv[1]);
 419                return git_config_set_multivar(argv[0], value, argv[2], 1);
 420        }
 421        else if (actions == ACTION_GET) {
 422                check_argc(argc, 1, 2);
 423                return get_value(argv[0], argv[1]);
 424        }
 425        else if (actions == ACTION_GET_ALL) {
 426                do_all = 1;
 427                check_argc(argc, 1, 2);
 428                return get_value(argv[0], argv[1]);
 429        }
 430        else if (actions == ACTION_GET_REGEXP) {
 431                show_keys = 1;
 432                use_key_regexp = 1;
 433                do_all = 1;
 434                check_argc(argc, 1, 2);
 435                return get_value(argv[0], argv[1]);
 436        }
 437        else if (actions == ACTION_UNSET) {
 438                check_argc(argc, 1, 2);
 439                if (argc == 2)
 440                        return git_config_set_multivar(argv[0], NULL, argv[1], 0);
 441                else
 442                        return git_config_set(argv[0], NULL);
 443        }
 444        else if (actions == ACTION_UNSET_ALL) {
 445                check_argc(argc, 1, 2);
 446                return git_config_set_multivar(argv[0], NULL, argv[1], 1);
 447        }
 448        else if (actions == ACTION_RENAME_SECTION) {
 449                int ret;
 450                check_argc(argc, 2, 2);
 451                ret = git_config_rename_section(argv[0], argv[1]);
 452                if (ret < 0)
 453                        return ret;
 454                if (ret == 0)
 455                        die("No such section!");
 456        }
 457        else if (actions == ACTION_REMOVE_SECTION) {
 458                int ret;
 459                check_argc(argc, 1, 1);
 460                ret = git_config_rename_section(argv[0], NULL);
 461                if (ret < 0)
 462                        return ret;
 463                if (ret == 0)
 464                        die("No such section!");
 465        }
 466        else if (actions == ACTION_GET_COLOR) {
 467                get_color(argv[0]);
 468        }
 469        else if (actions == ACTION_GET_COLORBOOL) {
 470                if (argc == 1)
 471                        stdout_is_tty = git_config_bool("command line", argv[0]);
 472                else if (argc == 0)
 473                        stdout_is_tty = isatty(1);
 474                return get_colorbool(argc != 0);
 475        }
 476
 477        return 0;
 478}