Andrew's git / gitweb.git / builtin-config.c
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builtin-config.con commit Merge branch 'maint' (b32acd2)
   1#include "builtin.h"
   2#include "cache.h"
   3#include "color.h"
   4
   5static const char git_config_set_usage[] =
   6"git config [ --global | --system | [ -f | --file ] config-file ] [ --bool | --int | --bool-or-int ] [ -z | --null ] [--get | --get-all | --get-regexp | --replace-all | --add | --unset | --unset-all] name [value [value_regex]] | --rename-section old_name new_name | --remove-section name | --list | --get-color var [default] | --get-colorbool name [stdout-is-tty]";
   7
   8static char *key;
   9static regex_t *key_regexp;
  10static regex_t *regexp;
  11static int show_keys;
  12static int use_key_regexp;
  13static int do_all;
  14static int do_not_match;
  15static int seen;
  16static char delim = '=';
  17static char key_delim = ' ';
  18static char term = '\n';
  19static enum { T_RAW, T_INT, T_BOOL, T_BOOL_OR_INT } type = T_RAW;
  20
  21static int show_all_config(const char *key_, const char *value_, void *cb)
  22{
  23        if (value_)
  24                printf("%s%c%s%c", key_, delim, value_, term);
  25        else
  26                printf("%s%c", key_, term);
  27        return 0;
  28}
  29
  30static int show_config(const char* key_, const char* value_, void *cb)
  31{
  32        char value[256];
  33        const char *vptr = value;
  34        int dup_error = 0;
  35
  36        if (!use_key_regexp && strcmp(key_, key))
  37                return 0;
  38        if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
  39                return 0;
  40        if (regexp != NULL &&
  41            (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
  42                return 0;
  43
  44        if (show_keys) {
  45                if (value_)
  46                        printf("%s%c", key_, key_delim);
  47                else
  48                        printf("%s", key_);
  49        }
  50        if (seen && !do_all)
  51                dup_error = 1;
  52        if (type == T_INT)
  53                sprintf(value, "%d", git_config_int(key_, value_?value_:""));
  54        else if (type == T_BOOL)
  55                vptr = git_config_bool(key_, value_) ? "true" : "false";
  56        else if (type == T_BOOL_OR_INT) {
  57                int is_bool, v;
  58                v = git_config_bool_or_int(key_, value_, &is_bool);
  59                if (is_bool)
  60                        vptr = v ? "true" : "false";
  61                else
  62                        sprintf(value, "%d", v);
  63        }
  64        else
  65                vptr = value_?value_:"";
  66        seen++;
  67        if (dup_error) {
  68                error("More than one value for the key %s: %s",
  69                                key_, vptr);
  70        }
  71        else
  72                printf("%s%c", vptr, term);
  73
  74        return 0;
  75}
  76
  77static int get_value(const char* key_, const char* regex_)
  78{
  79        int ret = -1;
  80        char *tl;
  81        char *global = NULL, *repo_config = NULL;
  82        const char *system_wide = NULL, *local;
  83
  84        local = config_exclusive_filename;
  85        if (!local) {
  86                const char *home = getenv("HOME");
  87                local = repo_config = git_pathdup("config");
  88                if (git_config_global() && home)
  89                        global = xstrdup(mkpath("%s/.gitconfig", home));
  90                if (git_config_system())
  91                        system_wide = git_etc_gitconfig();
  92        }
  93
  94        key = xstrdup(key_);
  95        for (tl=key+strlen(key)-1; tl >= key && *tl != '.'; --tl)
  96                *tl = tolower(*tl);
  97        for (tl=key; *tl && *tl != '.'; ++tl)
  98                *tl = tolower(*tl);
  99
 100        if (use_key_regexp) {
 101                key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
 102                if (regcomp(key_regexp, key, REG_EXTENDED)) {
 103                        fprintf(stderr, "Invalid key pattern: %s\n", key_);
 104                        goto free_strings;
 105                }
 106        }
 107
 108        if (regex_) {
 109                if (regex_[0] == '!') {
 110                        do_not_match = 1;
 111                        regex_++;
 112                }
 113
 114                regexp = (regex_t*)xmalloc(sizeof(regex_t));
 115                if (regcomp(regexp, regex_, REG_EXTENDED)) {
 116                        fprintf(stderr, "Invalid pattern: %s\n", regex_);
 117                        goto free_strings;
 118                }
 119        }
 120
 121        if (do_all && system_wide)
 122                git_config_from_file(show_config, system_wide, NULL);
 123        if (do_all && global)
 124                git_config_from_file(show_config, global, NULL);
 125        git_config_from_file(show_config, local, NULL);
 126        if (!do_all && !seen && global)
 127                git_config_from_file(show_config, global, NULL);
 128        if (!do_all && !seen && system_wide)
 129                git_config_from_file(show_config, system_wide, NULL);
 130
 131        free(key);
 132        if (regexp) {
 133                regfree(regexp);
 134                free(regexp);
 135        }
 136
 137        if (do_all)
 138                ret = !seen;
 139        else
 140                ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
 141
 142free_strings:
 143        free(repo_config);
 144        free(global);
 145        return ret;
 146}
 147
 148static char *normalize_value(const char *key, const char *value)
 149{
 150        char *normalized;
 151
 152        if (!value)
 153                return NULL;
 154
 155        if (type == T_RAW)
 156                normalized = xstrdup(value);
 157        else {
 158                normalized = xmalloc(64);
 159                if (type == T_INT) {
 160                        int v = git_config_int(key, value);
 161                        sprintf(normalized, "%d", v);
 162                }
 163                else if (type == T_BOOL)
 164                        sprintf(normalized, "%s",
 165                                git_config_bool(key, value) ? "true" : "false");
 166                else if (type == T_BOOL_OR_INT) {
 167                        int is_bool, v;
 168                        v = git_config_bool_or_int(key, value, &is_bool);
 169                        if (!is_bool)
 170                                sprintf(normalized, "%d", v);
 171                        else
 172                                sprintf(normalized, "%s", v ? "true" : "false");
 173                }
 174        }
 175
 176        return normalized;
 177}
 178
 179static int get_color_found;
 180static const char *get_color_slot;
 181static char parsed_color[COLOR_MAXLEN];
 182
 183static int git_get_color_config(const char *var, const char *value, void *cb)
 184{
 185        if (!strcmp(var, get_color_slot)) {
 186                if (!value)
 187                        config_error_nonbool(var);
 188                color_parse(value, var, parsed_color);
 189                get_color_found = 1;
 190        }
 191        return 0;
 192}
 193
 194static int get_color(int argc, const char **argv)
 195{
 196        /*
 197         * grab the color setting for the given slot from the configuration,
 198         * or parse the default value if missing, and return ANSI color
 199         * escape sequence.
 200         *
 201         * e.g.
 202         * git config --get-color color.diff.whitespace "blue reverse"
 203         */
 204        const char *def_color = NULL;
 205
 206        switch (argc) {
 207        default:
 208                usage(git_config_set_usage);
 209        case 2:
 210                def_color = argv[1];
 211                /* fallthru */
 212        case 1:
 213                get_color_slot = argv[0];
 214                break;
 215        }
 216
 217        get_color_found = 0;
 218        parsed_color[0] = '\0';
 219        git_config(git_get_color_config, NULL);
 220
 221        if (!get_color_found && def_color)
 222                color_parse(def_color, "command line", parsed_color);
 223
 224        fputs(parsed_color, stdout);
 225        return 0;
 226}
 227
 228static int stdout_is_tty;
 229static int get_colorbool_found;
 230static int get_diff_color_found;
 231static int git_get_colorbool_config(const char *var, const char *value,
 232                void *cb)
 233{
 234        if (!strcmp(var, get_color_slot)) {
 235                get_colorbool_found =
 236                        git_config_colorbool(var, value, stdout_is_tty);
 237        }
 238        if (!strcmp(var, "diff.color")) {
 239                get_diff_color_found =
 240                        git_config_colorbool(var, value, stdout_is_tty);
 241        }
 242        if (!strcmp(var, "color.ui")) {
 243                git_use_color_default = git_config_colorbool(var, value, stdout_is_tty);
 244                return 0;
 245        }
 246        return 0;
 247}
 248
 249static int get_colorbool(int argc, const char **argv)
 250{
 251        /*
 252         * git config --get-colorbool <slot> [<stdout-is-tty>]
 253         *
 254         * returns "true" or "false" depending on how <slot>
 255         * is configured.
 256         */
 257
 258        if (argc == 2)
 259                stdout_is_tty = git_config_bool("command line", argv[1]);
 260        else if (argc == 1)
 261                stdout_is_tty = isatty(1);
 262        else
 263                usage(git_config_set_usage);
 264        get_colorbool_found = -1;
 265        get_diff_color_found = -1;
 266        get_color_slot = argv[0];
 267        git_config(git_get_colorbool_config, NULL);
 268
 269        if (get_colorbool_found < 0) {
 270                if (!strcmp(get_color_slot, "color.diff"))
 271                        get_colorbool_found = get_diff_color_found;
 272                if (get_colorbool_found < 0)
 273                        get_colorbool_found = git_use_color_default;
 274        }
 275
 276        if (argc == 1) {
 277                return get_colorbool_found ? 0 : 1;
 278        } else {
 279                printf("%s\n", get_colorbool_found ? "true" : "false");
 280                return 0;
 281        }
 282}
 283
 284int cmd_config(int argc, const char **argv, const char *prefix)
 285{
 286        int nongit;
 287        char* value;
 288        const char *file = setup_git_directory_gently(&nongit);
 289
 290        config_exclusive_filename = getenv(CONFIG_ENVIRONMENT);
 291
 292        while (1 < argc) {
 293                if (!strcmp(argv[1], "--int"))
 294                        type = T_INT;
 295                else if (!strcmp(argv[1], "--bool"))
 296                        type = T_BOOL;
 297                else if (!strcmp(argv[1], "--bool-or-int"))
 298                        type = T_BOOL_OR_INT;
 299                else if (!strcmp(argv[1], "--list") || !strcmp(argv[1], "-l")) {
 300                        if (argc != 2)
 301                                usage(git_config_set_usage);
 302                        if (git_config(show_all_config, NULL) < 0 &&
 303                                        file && errno)
 304                                die("unable to read config file %s: %s", file,
 305                                    strerror(errno));
 306                        return 0;
 307                }
 308                else if (!strcmp(argv[1], "--global")) {
 309                        char *home = getenv("HOME");
 310                        if (home) {
 311                                char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
 312                                config_exclusive_filename = user_config;
 313                        } else {
 314                                die("$HOME not set");
 315                        }
 316                }
 317                else if (!strcmp(argv[1], "--system"))
 318                        config_exclusive_filename = git_etc_gitconfig();
 319                else if (!strcmp(argv[1], "--file") || !strcmp(argv[1], "-f")) {
 320                        if (argc < 3)
 321                                usage(git_config_set_usage);
 322                        if (!is_absolute_path(argv[2]) && file)
 323                                file = prefix_filename(file, strlen(file),
 324                                                       argv[2]);
 325                        else
 326                                file = argv[2];
 327                        config_exclusive_filename = file;
 328                        argc--;
 329                        argv++;
 330                }
 331                else if (!strcmp(argv[1], "--null") || !strcmp(argv[1], "-z")) {
 332                        term = '\0';
 333                        delim = '\n';
 334                        key_delim = '\n';
 335                }
 336                else if (!strcmp(argv[1], "--rename-section")) {
 337                        int ret;
 338                        if (argc != 4)
 339                                usage(git_config_set_usage);
 340                        ret = git_config_rename_section(argv[2], argv[3]);
 341                        if (ret < 0)
 342                                return ret;
 343                        if (ret == 0) {
 344                                fprintf(stderr, "No such section!\n");
 345                                return 1;
 346                        }
 347                        return 0;
 348                }
 349                else if (!strcmp(argv[1], "--remove-section")) {
 350                        int ret;
 351                        if (argc != 3)
 352                                usage(git_config_set_usage);
 353                        ret = git_config_rename_section(argv[2], NULL);
 354                        if (ret < 0)
 355                                return ret;
 356                        if (ret == 0) {
 357                                fprintf(stderr, "No such section!\n");
 358                                return 1;
 359                        }
 360                        return 0;
 361                } else if (!strcmp(argv[1], "--get-color")) {
 362                        return get_color(argc-2, argv+2);
 363                } else if (!strcmp(argv[1], "--get-colorbool")) {
 364                        return get_colorbool(argc-2, argv+2);
 365                } else
 366                        break;
 367                argc--;
 368                argv++;
 369        }
 370
 371        switch (argc) {
 372        case 2:
 373                return get_value(argv[1], NULL);
 374        case 3:
 375                if (!strcmp(argv[1], "--unset"))
 376                        return git_config_set(argv[2], NULL);
 377                else if (!strcmp(argv[1], "--unset-all"))
 378                        return git_config_set_multivar(argv[2], NULL, NULL, 1);
 379                else if (!strcmp(argv[1], "--get"))
 380                        return get_value(argv[2], NULL);
 381                else if (!strcmp(argv[1], "--get-all")) {
 382                        do_all = 1;
 383                        return get_value(argv[2], NULL);
 384                } else if (!strcmp(argv[1], "--get-regexp")) {
 385                        show_keys = 1;
 386                        use_key_regexp = 1;
 387                        do_all = 1;
 388                        return get_value(argv[2], NULL);
 389                } else {
 390                        value = normalize_value(argv[1], argv[2]);
 391                        return git_config_set(argv[1], value);
 392                }
 393        case 4:
 394                if (!strcmp(argv[1], "--unset"))
 395                        return git_config_set_multivar(argv[2], NULL, argv[3], 0);
 396                else if (!strcmp(argv[1], "--unset-all"))
 397                        return git_config_set_multivar(argv[2], NULL, argv[3], 1);
 398                else if (!strcmp(argv[1], "--get"))
 399                        return get_value(argv[2], argv[3]);
 400                else if (!strcmp(argv[1], "--get-all")) {
 401                        do_all = 1;
 402                        return get_value(argv[2], argv[3]);
 403                } else if (!strcmp(argv[1], "--get-regexp")) {
 404                        show_keys = 1;
 405                        use_key_regexp = 1;
 406                        do_all = 1;
 407                        return get_value(argv[2], argv[3]);
 408                } else if (!strcmp(argv[1], "--add")) {
 409                        value = normalize_value(argv[2], argv[3]);
 410                        return git_config_set_multivar(argv[2], value, "^$", 0);
 411                } else if (!strcmp(argv[1], "--replace-all")) {
 412                        value = normalize_value(argv[2], argv[3]);
 413                        return git_config_set_multivar(argv[2], value, NULL, 1);
 414                } else {
 415                        value = normalize_value(argv[1], argv[2]);
 416                        return git_config_set_multivar(argv[1], value, argv[3], 0);
 417                }
 418        case 5:
 419                if (!strcmp(argv[1], "--replace-all")) {
 420                        value = normalize_value(argv[2], argv[3]);
 421                        return git_config_set_multivar(argv[2], value, argv[4], 1);
 422                }
 423        case 1:
 424        default:
 425                usage(git_config_set_usage);
 426        }
 427        return 0;
 428}