builtin-config.c

   1 #include "builtin.h"
   2 #include "cache.h"
   3 #include "color.h"
   4
   5 static 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] | --edit | -e ]";
   7
   8 static char *key;
   9 static regex_t *key_regexp;
  10 static regex_t *regexp;
  11 static int show_keys;
  12 static int use_key_regexp;
  13 static int do_all;
  14 static int do_not_match;
  15 static int seen;
  16 static char delim = '=';
  17 static char key_delim = ' ';
  18 static char term = '\n';
  19 static enum { T_RAW, T_INT, T_BOOL, T_BOOL_OR_INT } type = T_RAW;
  20
  21 static 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
  30 static 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
  77 static 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
 142 free_strings:
 143         free(repo_config);
 144         free(global);
 145         return ret;
 146 }
 147
 148 static 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
 179 static int get_color_found;
 180 static const char *get_color_slot;
 181 static const char *get_colorbool_slot;
 182 static char parsed_color[COLOR_MAXLEN];
 183
 184 static int git_get_color_config(const char *var, const char *value, void *cb)
 185 {
 186         if (!strcmp(var, get_color_slot)) {
 187                 if (!value)
 188                         config_error_nonbool(var);
 189                 color_parse(value, var, parsed_color);
 190                 get_color_found = 1;
 191         }
 192         return 0;
 193 }
 194
 195 static int get_color(int argc, const char **argv)
 196 {
 197         /*
 198          * grab the color setting for the given slot from the configuration,
 199          * or parse the default value if missing, and return ANSI color
 200          * escape sequence.
 201          *
 202          * e.g.
 203          * git config --get-color color.diff.whitespace "blue reverse"
 204          */
 205         const char *def_color = NULL;
 206
 207         switch (argc) {
 208         default:
 209                 usage(git_config_set_usage);
 210         case 2:
 211                 def_color = argv[1];
 212                 /* fallthru */
 213         case 1:
 214                 get_color_slot = argv[0];
 215                 break;
 216         }
 217
 218         get_color_found = 0;
 219         parsed_color[0] = '\0';
 220         git_config(git_get_color_config, NULL);
 221
 222         if (!get_color_found && def_color)
 223                 color_parse(def_color, "command line", parsed_color);
 224
 225         fputs(parsed_color, stdout);
 226         return 0;
 227 }
 228
 229 static int stdout_is_tty;
 230 static int get_colorbool_found;
 231 static int get_diff_color_found;
 232 static int git_get_colorbool_config(const char *var, const char *value,
 233                 void *cb)
 234 {
 235         if (!strcmp(var, get_colorbool_slot)) {
 236                 get_colorbool_found =
 237                         git_config_colorbool(var, value, stdout_is_tty);
 238         }
 239         if (!strcmp(var, "diff.color")) {
 240                 get_diff_color_found =
 241                         git_config_colorbool(var, value, stdout_is_tty);
 242         }
 243         if (!strcmp(var, "color.ui")) {
 244                 git_use_color_default = git_config_colorbool(var, value, stdout_is_tty);
 245                 return 0;
 246         }
 247         return 0;
 248 }
 249
 250 static int get_colorbool(int argc, const char **argv)
 251 {
 252         /*
 253          * git config --get-colorbool <slot> [<stdout-is-tty>]
 254          *
 255          * returns "true" or "false" depending on how <slot>
 256          * is configured.
 257          */
 258
 259         if (argc == 2)
 260                 stdout_is_tty = git_config_bool("command line", argv[1]);
 261         else if (argc == 1)
 262                 stdout_is_tty = isatty(1);
 263         else
 264                 usage(git_config_set_usage);
 265         get_colorbool_found = -1;
 266         get_diff_color_found = -1;
 267         get_colorbool_slot = argv[0];
 268         git_config(git_get_colorbool_config, NULL);
 269
 270         if (get_colorbool_found < 0) {
 271                 if (!strcmp(get_colorbool_slot, "color.diff"))
 272                         get_colorbool_found = get_diff_color_found;
 273                 if (get_colorbool_found < 0)
 274                         get_colorbool_found = git_use_color_default;
 275         }
 276
 277         if (argc == 1) {
 278                 return get_colorbool_found ? 0 : 1;
 279         } else {
 280                 printf("%s\n", get_colorbool_found ? "true" : "false");
 281                 return 0;
 282         }
 283 }
 284
 285 int cmd_config(int argc, const char **argv, const char *unused_prefix)
 286 {
 287         int nongit;
 288         char *value;
 289         const char *prefix = setup_git_directory_gently(&nongit);
 290
 291         config_exclusive_filename = getenv(CONFIG_ENVIRONMENT);
 292
 293         while (1 < argc) {
 294                 if (!strcmp(argv[1], "--int"))
 295                         type = T_INT;
 296                 else if (!strcmp(argv[1], "--bool"))
 297                         type = T_BOOL;
 298                 else if (!strcmp(argv[1], "--bool-or-int"))
 299                         type = T_BOOL_OR_INT;
 300                 else if (!strcmp(argv[1], "--list") || !strcmp(argv[1], "-l")) {
 301                         if (argc != 2)
 302                                 usage(git_config_set_usage);
 303                         if (git_config(show_all_config, NULL) < 0) {
 304                                 if (config_exclusive_filename)
 305                                         die("unable to read config file %s: %s",
 306                                             config_exclusive_filename, strerror(errno));
 307                                 else
 308                                         die("error processing config file(s)");
 309                         }
 310                         return 0;
 311                 }
 312                 else if (!strcmp(argv[1], "--global")) {
 313                         char *home = getenv("HOME");
 314                         if (home) {
 315                                 char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
 316                                 config_exclusive_filename = user_config;
 317                         } else {
 318                                 die("$HOME not set");
 319                         }
 320                 }
 321                 else if (!strcmp(argv[1], "--system"))
 322                         config_exclusive_filename = git_etc_gitconfig();
 323                 else if (!strcmp(argv[1], "--file") || !strcmp(argv[1], "-f")) {
 324                         if (argc < 3)
 325                                 usage(git_config_set_usage);
 326                         if (!is_absolute_path(argv[2]) && prefix)
 327                                 config_exclusive_filename = prefix_filename(prefix,
 328                                                                             strlen(prefix),
 329                                                                             argv[2]);
 330                         else
 331                                 config_exclusive_filename = argv[2];
 332                         argc--;
 333                         argv++;
 334                 }
 335                 else if (!strcmp(argv[1], "--null") || !strcmp(argv[1], "-z")) {
 336                         term = '\0';
 337                         delim = '\n';
 338                         key_delim = '\n';
 339                 }
 340                 else if (!strcmp(argv[1], "--rename-section")) {
 341                         int ret;
 342                         if (argc != 4)
 343                                 usage(git_config_set_usage);
 344                         ret = git_config_rename_section(argv[2], argv[3]);
 345                         if (ret < 0)
 346                                 return ret;
 347                         if (ret == 0) {
 348                                 fprintf(stderr, "No such section!\n");
 349                                 return 1;
 350                         }
 351                         return 0;
 352                 }
 353                 else if (!strcmp(argv[1], "--remove-section")) {
 354                         int ret;
 355                         if (argc != 3)
 356                                 usage(git_config_set_usage);
 357                         ret = git_config_rename_section(argv[2], NULL);
 358                         if (ret < 0)
 359                                 return ret;
 360                         if (ret == 0) {
 361                                 fprintf(stderr, "No such section!\n");
 362                                 return 1;
 363                         }
 364                         return 0;
 365                 } else if (!strcmp(argv[1], "--get-color")) {
 366                         return get_color(argc-2, argv+2);
 367                 } else if (!strcmp(argv[1], "--get-colorbool")) {
 368                         return get_colorbool(argc-2, argv+2);
 369                 } else if (!strcmp(argv[1], "--edit") || !strcmp(argv[1], "-e")) {
 370                         if (argc != 2)
 371                                 usage(git_config_set_usage);
 372                         git_config(git_default_config, NULL);
 373                         launch_editor(config_exclusive_filename ?
 374                                       config_exclusive_filename : git_path("config"),
 375                                       NULL, NULL);
 376                         return 0;
 377                 } else
 378                         break;
 379                 argc--;
 380                 argv++;
 381         }
 382
 383         switch (argc) {
 384         case 2:
 385                 return get_value(argv[1], NULL);
 386         case 3:
 387                 if (!strcmp(argv[1], "--unset"))
 388                         return git_config_set(argv[2], NULL);
 389                 else if (!strcmp(argv[1], "--unset-all"))
 390                         return git_config_set_multivar(argv[2], NULL, NULL, 1);
 391                 else if (!strcmp(argv[1], "--get"))
 392                         return get_value(argv[2], NULL);
 393                 else if (!strcmp(argv[1], "--get-all")) {
 394                         do_all = 1;
 395                         return get_value(argv[2], NULL);
 396                 } else if (!strcmp(argv[1], "--get-regexp")) {
 397                         show_keys = 1;
 398                         use_key_regexp = 1;
 399                         do_all = 1;
 400                         return get_value(argv[2], NULL);
 401                 } else {
 402                         value = normalize_value(argv[1], argv[2]);
 403                         return git_config_set(argv[1], value);
 404                 }
 405         case 4:
 406                 if (!strcmp(argv[1], "--unset"))
 407                         return git_config_set_multivar(argv[2], NULL, argv[3], 0);
 408                 else if (!strcmp(argv[1], "--unset-all"))
 409                         return git_config_set_multivar(argv[2], NULL, argv[3], 1);
 410                 else if (!strcmp(argv[1], "--get"))
 411                         return get_value(argv[2], argv[3]);
 412                 else if (!strcmp(argv[1], "--get-all")) {
 413                         do_all = 1;
 414                         return get_value(argv[2], argv[3]);
 415                 } else if (!strcmp(argv[1], "--get-regexp")) {
 416                         show_keys = 1;
 417                         use_key_regexp = 1;
 418                         do_all = 1;
 419                         return get_value(argv[2], argv[3]);
 420                 } else if (!strcmp(argv[1], "--add")) {
 421                         value = normalize_value(argv[2], argv[3]);
 422                         return git_config_set_multivar(argv[2], value, "^$", 0);
 423                 } else if (!strcmp(argv[1], "--replace-all")) {
 424                         value = normalize_value(argv[2], argv[3]);
 425                         return git_config_set_multivar(argv[2], value, NULL, 1);
 426                 } else {
 427                         value = normalize_value(argv[1], argv[2]);
 428                         return git_config_set_multivar(argv[1], value, argv[3], 0);
 429                 }
 430         case 5:
 431                 if (!strcmp(argv[1], "--replace-all")) {
 432                         value = normalize_value(argv[2], argv[3]);
 433                         return git_config_set_multivar(argv[2], value, argv[4], 1);
 434                 }
 435         case 1:
 436         default:
 437                 usage(git_config_set_usage);
 438         }
 439         return 0;
 440 }