Andrew's git / gitweb.git / builtin-config.c
?
builtin-config.con commit gitweb: quote commands properly when calling the shell (516381d)
   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 = getenv(CONFIG_ENVIRONMENT);
  85        if (!local) {
  86                const char *home = getenv("HOME");
  87                local = getenv(CONFIG_LOCAL_ENVIRONMENT);
  88                if (!local)
  89                        local = repo_config = xstrdup(git_path("config"));
  90                if (git_config_global() && home)
  91                        global = xstrdup(mkpath("%s/.gitconfig", home));
  92                if (git_config_system())
  93                        system_wide = git_etc_gitconfig();
  94        }
  95
  96        key = xstrdup(key_);
  97        for (tl=key+strlen(key)-1; tl >= key && *tl != '.'; --tl)
  98                *tl = tolower(*tl);
  99        for (tl=key; *tl && *tl != '.'; ++tl)
 100                *tl = tolower(*tl);
 101
 102        if (use_key_regexp) {
 103                key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
 104                if (regcomp(key_regexp, key, REG_EXTENDED)) {
 105                        fprintf(stderr, "Invalid key pattern: %s\n", key_);
 106                        goto free_strings;
 107                }
 108        }
 109
 110        if (regex_) {
 111                if (regex_[0] == '!') {
 112                        do_not_match = 1;
 113                        regex_++;
 114                }
 115
 116                regexp = (regex_t*)xmalloc(sizeof(regex_t));
 117                if (regcomp(regexp, regex_, REG_EXTENDED)) {
 118                        fprintf(stderr, "Invalid pattern: %s\n", regex_);
 119                        goto free_strings;
 120                }
 121        }
 122
 123        if (do_all && system_wide)
 124                git_config_from_file(show_config, system_wide, NULL);
 125        if (do_all && global)
 126                git_config_from_file(show_config, global, NULL);
 127        git_config_from_file(show_config, local, NULL);
 128        if (!do_all && !seen && global)
 129                git_config_from_file(show_config, global, NULL);
 130        if (!do_all && !seen && system_wide)
 131                git_config_from_file(show_config, system_wide, NULL);
 132
 133        free(key);
 134        if (regexp) {
 135                regfree(regexp);
 136                free(regexp);
 137        }
 138
 139        if (do_all)
 140                ret = !seen;
 141        else
 142                ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
 143
 144free_strings:
 145        free(repo_config);
 146        free(global);
 147        return ret;
 148}
 149
 150char *normalize_value(const char *key, const char *value)
 151{
 152        char *normalized;
 153
 154        if (!value)
 155                return NULL;
 156
 157        if (type == T_RAW)
 158                normalized = xstrdup(value);
 159        else {
 160                normalized = xmalloc(64);
 161                if (type == T_INT) {
 162                        int v = git_config_int(key, value);
 163                        sprintf(normalized, "%d", v);
 164                }
 165                else if (type == T_BOOL)
 166                        sprintf(normalized, "%s",
 167                                git_config_bool(key, value) ? "true" : "false");
 168                else if (type == T_BOOL_OR_INT) {
 169                        int is_bool, v;
 170                        v = git_config_bool_or_int(key, value, &is_bool);
 171                        if (!is_bool)
 172                                sprintf(normalized, "%d", v);
 173                        else
 174                                sprintf(normalized, "%s", v ? "true" : "false");
 175                }
 176        }
 177
 178        return normalized;
 179}
 180
 181static int get_color_found;
 182static const char *get_color_slot;
 183static char parsed_color[COLOR_MAXLEN];
 184
 185static int git_get_color_config(const char *var, const char *value, void *cb)
 186{
 187        if (!strcmp(var, get_color_slot)) {
 188                if (!value)
 189                        config_error_nonbool(var);
 190                color_parse(value, var, parsed_color);
 191                get_color_found = 1;
 192        }
 193        return 0;
 194}
 195
 196static int get_color(int argc, const char **argv)
 197{
 198        /*
 199         * grab the color setting for the given slot from the configuration,
 200         * or parse the default value if missing, and return ANSI color
 201         * escape sequence.
 202         *
 203         * e.g.
 204         * git config --get-color color.diff.whitespace "blue reverse"
 205         */
 206        const char *def_color = NULL;
 207
 208        switch (argc) {
 209        default:
 210                usage(git_config_set_usage);
 211        case 2:
 212                def_color = argv[1];
 213                /* fallthru */
 214        case 1:
 215                get_color_slot = argv[0];
 216                break;
 217        }
 218
 219        get_color_found = 0;
 220        parsed_color[0] = '\0';
 221        git_config(git_get_color_config, NULL);
 222
 223        if (!get_color_found && def_color)
 224                color_parse(def_color, "command line", parsed_color);
 225
 226        fputs(parsed_color, stdout);
 227        return 0;
 228}
 229
 230static int stdout_is_tty;
 231static int get_colorbool_found;
 232static int get_diff_color_found;
 233static int git_get_colorbool_config(const char *var, const char *value,
 234                void *cb)
 235{
 236        if (!strcmp(var, get_color_slot)) {
 237                get_colorbool_found =
 238                        git_config_colorbool(var, value, stdout_is_tty);
 239        }
 240        if (!strcmp(var, "diff.color")) {
 241                get_diff_color_found =
 242                        git_config_colorbool(var, value, stdout_is_tty);
 243        }
 244        if (!strcmp(var, "color.ui")) {
 245                git_use_color_default = git_config_colorbool(var, value, stdout_is_tty);
 246                return 0;
 247        }
 248        return 0;
 249}
 250
 251static int get_colorbool(int argc, const char **argv)
 252{
 253        /*
 254         * git config --get-colorbool <slot> [<stdout-is-tty>]
 255         *
 256         * returns "true" or "false" depending on how <slot>
 257         * is configured.
 258         */
 259
 260        if (argc == 2)
 261                stdout_is_tty = git_config_bool("command line", argv[1]);
 262        else if (argc == 1)
 263                stdout_is_tty = isatty(1);
 264        else
 265                usage(git_config_set_usage);
 266        get_colorbool_found = -1;
 267        get_diff_color_found = -1;
 268        get_color_slot = argv[0];
 269        git_config(git_get_colorbool_config, NULL);
 270
 271        if (get_colorbool_found < 0) {
 272                if (!strcmp(get_color_slot, "color.diff"))
 273                        get_colorbool_found = get_diff_color_found;
 274                if (get_colorbool_found < 0)
 275                        get_colorbool_found = git_use_color_default;
 276        }
 277
 278        if (argc == 1) {
 279                return get_colorbool_found ? 0 : 1;
 280        } else {
 281                printf("%s\n", get_colorbool_found ? "true" : "false");
 282                return 0;
 283        }
 284}
 285
 286int cmd_config(int argc, const char **argv, const char *prefix)
 287{
 288        int nongit;
 289        char* value;
 290        const char *file = setup_git_directory_gently(&nongit);
 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                                setenv(CONFIG_ENVIRONMENT, user_config, 1);
 313                                free(user_config);
 314                        } else {
 315                                die("$HOME not set");
 316                        }
 317                }
 318                else if (!strcmp(argv[1], "--system"))
 319                        setenv(CONFIG_ENVIRONMENT, git_etc_gitconfig(), 1);
 320                else if (!strcmp(argv[1], "--file") || !strcmp(argv[1], "-f")) {
 321                        if (argc < 3)
 322                                usage(git_config_set_usage);
 323                        if (!is_absolute_path(argv[2]) && file)
 324                                file = prefix_filename(file, strlen(file),
 325                                                       argv[2]);
 326                        else
 327                                file = argv[2];
 328                        setenv(CONFIG_ENVIRONMENT, file, 1);
 329                        argc--;
 330                        argv++;
 331                }
 332                else if (!strcmp(argv[1], "--null") || !strcmp(argv[1], "-z")) {
 333                        term = '\0';
 334                        delim = '\n';
 335                        key_delim = '\n';
 336                }
 337                else if (!strcmp(argv[1], "--rename-section")) {
 338                        int ret;
 339                        if (argc != 4)
 340                                usage(git_config_set_usage);
 341                        ret = git_config_rename_section(argv[2], argv[3]);
 342                        if (ret < 0)
 343                                return ret;
 344                        if (ret == 0) {
 345                                fprintf(stderr, "No such section!\n");
 346                                return 1;
 347                        }
 348                        return 0;
 349                }
 350                else if (!strcmp(argv[1], "--remove-section")) {
 351                        int ret;
 352                        if (argc != 3)
 353                                usage(git_config_set_usage);
 354                        ret = git_config_rename_section(argv[2], NULL);
 355                        if (ret < 0)
 356                                return ret;
 357                        if (ret == 0) {
 358                                fprintf(stderr, "No such section!\n");
 359                                return 1;
 360                        }
 361                        return 0;
 362                } else if (!strcmp(argv[1], "--get-color")) {
 363                        return get_color(argc-2, argv+2);
 364                } else if (!strcmp(argv[1], "--get-colorbool")) {
 365                        return get_colorbool(argc-2, argv+2);
 366                } else
 367                        break;
 368                argc--;
 369                argv++;
 370        }
 371
 372        switch (argc) {
 373        case 2:
 374                return get_value(argv[1], NULL);
 375        case 3:
 376                if (!strcmp(argv[1], "--unset"))
 377                        return git_config_set(argv[2], NULL);
 378                else if (!strcmp(argv[1], "--unset-all"))
 379                        return git_config_set_multivar(argv[2], NULL, NULL, 1);
 380                else if (!strcmp(argv[1], "--get"))
 381                        return get_value(argv[2], NULL);
 382                else if (!strcmp(argv[1], "--get-all")) {
 383                        do_all = 1;
 384                        return get_value(argv[2], NULL);
 385                } else if (!strcmp(argv[1], "--get-regexp")) {
 386                        show_keys = 1;
 387                        use_key_regexp = 1;
 388                        do_all = 1;
 389                        return get_value(argv[2], NULL);
 390                } else {
 391                        value = normalize_value(argv[1], argv[2]);
 392                        return git_config_set(argv[1], value);
 393                }
 394        case 4:
 395                if (!strcmp(argv[1], "--unset"))
 396                        return git_config_set_multivar(argv[2], NULL, argv[3], 0);
 397                else if (!strcmp(argv[1], "--unset-all"))
 398                        return git_config_set_multivar(argv[2], NULL, argv[3], 1);
 399                else if (!strcmp(argv[1], "--get"))
 400                        return get_value(argv[2], argv[3]);
 401                else if (!strcmp(argv[1], "--get-all")) {
 402                        do_all = 1;
 403                        return get_value(argv[2], argv[3]);
 404                } else if (!strcmp(argv[1], "--get-regexp")) {
 405                        show_keys = 1;
 406                        use_key_regexp = 1;
 407                        do_all = 1;
 408                        return get_value(argv[2], argv[3]);
 409                } else if (!strcmp(argv[1], "--add")) {
 410                        value = normalize_value(argv[2], argv[3]);
 411                        return git_config_set_multivar(argv[2], value, "^$", 0);
 412                } else if (!strcmp(argv[1], "--replace-all")) {
 413                        value = normalize_value(argv[2], argv[3]);
 414                        return git_config_set_multivar(argv[2], value, NULL, 1);
 415                } else {
 416                        value = normalize_value(argv[1], argv[2]);
 417                        return git_config_set_multivar(argv[1], value, argv[3], 0);
 418                }
 419        case 5:
 420                if (!strcmp(argv[1], "--replace-all")) {
 421                        value = normalize_value(argv[2], argv[3]);
 422                        return git_config_set_multivar(argv[2], value, argv[4], 1);
 423                }
 424        case 1:
 425        default:
 426                usage(git_config_set_usage);
 427        }
 428        return 0;
 429}