builtin-config.c

   1 #include "builtin.h"
   2 #include "cache.h"
   3
   4 static const char git_config_set_usage[] =
   5 "git-config [ --global | --system | [ -f | --file ] config-file ] [ --bool | --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";
   6
   7 static char *key;
   8 static regex_t *key_regexp;
   9 static regex_t *regexp;
  10 static int show_keys;
  11 static int use_key_regexp;
  12 static int do_all;
  13 static int do_not_match;
  14 static int seen;
  15 static char delim = '=';
  16 static char key_delim = ' ';
  17 static char term = '\n';
  18 static enum { T_RAW, T_INT, T_BOOL } type = T_RAW;
  19
  20 static int show_all_config(const char *key_, const char *value_)
  21 {
  22         if (value_)
  23                 printf("%s%c%s%c", key_, delim, value_, term);
  24         else
  25                 printf("%s%c", key_, term);
  26         return 0;
  27 }
  28
  29 static int show_config(const char* key_, const char* value_)
  30 {
  31         char value[256];
  32         const char *vptr = value;
  33         int dup_error = 0;
  34
  35         if (!use_key_regexp && strcmp(key_, key))
  36                 return 0;
  37         if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
  38                 return 0;
  39         if (regexp != NULL &&
  40                          (do_not_match ^
  41                           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
  57                 vptr = value_?value_:"";
  58         seen++;
  59         if (dup_error) {
  60                 error("More than one value for the key %s: %s",
  61                                 key_, vptr);
  62         }
  63         else
  64                 printf("%s%c", vptr, term);
  65
  66         return 0;
  67 }
  68
  69 static int get_value(const char* key_, const char* regex_)
  70 {
  71         int ret = -1;
  72         char *tl;
  73         char *global = NULL, *repo_config = NULL;
  74         const char *system_wide = NULL, *local;
  75
  76         local = getenv(CONFIG_ENVIRONMENT);
  77         if (!local) {
  78                 const char *home = getenv("HOME");
  79                 local = getenv(CONFIG_LOCAL_ENVIRONMENT);
  80                 if (!local)
  81                         local = repo_config = xstrdup(git_path("config"));
  82                 if (home)
  83                         global = xstrdup(mkpath("%s/.gitconfig", home));
  84                 system_wide = git_etc_gitconfig();
  85         }
  86
  87         key = xstrdup(key_);
  88         for (tl=key+strlen(key)-1; tl >= key && *tl != '.'; --tl)
  89                 *tl = tolower(*tl);
  90         for (tl=key; *tl && *tl != '.'; ++tl)
  91                 *tl = tolower(*tl);
  92
  93         if (use_key_regexp) {
  94                 key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
  95                 if (regcomp(key_regexp, key, REG_EXTENDED)) {
  96                         fprintf(stderr, "Invalid key pattern: %s\n", key_);
  97                         goto free_strings;
  98                 }
  99         }
 100
 101         if (regex_) {
 102                 if (regex_[0] == '!') {
 103                         do_not_match = 1;
 104                         regex_++;
 105                 }
 106
 107                 regexp = (regex_t*)xmalloc(sizeof(regex_t));
 108                 if (regcomp(regexp, regex_, REG_EXTENDED)) {
 109                         fprintf(stderr, "Invalid pattern: %s\n", regex_);
 110                         goto free_strings;
 111                 }
 112         }
 113
 114         if (do_all && system_wide)
 115                 git_config_from_file(show_config, system_wide);
 116         if (do_all && global)
 117                 git_config_from_file(show_config, global);
 118         git_config_from_file(show_config, local);
 119         if (!do_all && !seen && global)
 120                 git_config_from_file(show_config, global);
 121         if (!do_all && !seen && system_wide)
 122                 git_config_from_file(show_config, system_wide);
 123
 124         free(key);
 125         if (regexp) {
 126                 regfree(regexp);
 127                 free(regexp);
 128         }
 129
 130         if (do_all)
 131                 ret = !seen;
 132         else
 133                 ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
 134
 135 free_strings:
 136         free(repo_config);
 137         free(global);
 138         return ret;
 139 }
 140
 141 char *normalize_value(const char *key, const char *value)
 142 {
 143         char *normalized;
 144
 145         if (!value)
 146                 return NULL;
 147
 148         if (type == T_RAW)
 149                 normalized = xstrdup(value);
 150         else {
 151                 normalized = xmalloc(64);
 152                 if (type == T_INT) {
 153                         int v = git_config_int(key, value);
 154                         sprintf(normalized, "%d", v);
 155                 }
 156                 else if (type == T_BOOL)
 157                         sprintf(normalized, "%s",
 158                                 git_config_bool(key, value) ? "true" : "false");
 159         }
 160
 161         return normalized;
 162 }
 163
 164 int cmd_config(int argc, const char **argv, const char *prefix)
 165 {
 166         int nongit = 0;
 167         char* value;
 168         const char *file = setup_git_directory_gently(&nongit);
 169
 170         while (1 < argc) {
 171                 if (!strcmp(argv[1], "--int"))
 172                         type = T_INT;
 173                 else if (!strcmp(argv[1], "--bool"))
 174                         type = T_BOOL;
 175                 else if (!strcmp(argv[1], "--list") || !strcmp(argv[1], "-l")) {
 176                         if (argc != 2)
 177                                 usage(git_config_set_usage);
 178                         if (git_config(show_all_config) < 0 && file && errno)
 179                                 die("unable to read config file %s: %s", file,
 180                                     strerror(errno));
 181                         return 0;
 182                 }
 183                 else if (!strcmp(argv[1], "--global")) {
 184                         char *home = getenv("HOME");
 185                         if (home) {
 186                                 char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
 187                                 setenv(CONFIG_ENVIRONMENT, user_config, 1);
 188                                 free(user_config);
 189                         } else {
 190                                 die("$HOME not set");
 191                         }
 192                 }
 193                 else if (!strcmp(argv[1], "--system"))
 194                         setenv(CONFIG_ENVIRONMENT, git_etc_gitconfig(), 1);
 195                 else if (!strcmp(argv[1], "--file") || !strcmp(argv[1], "-f")) {
 196                         if (argc < 3)
 197                                 usage(git_config_set_usage);
 198                         if (!is_absolute_path(argv[2]) && file)
 199                                 file = prefix_filename(file, strlen(file),
 200                                                        argv[2]);
 201                         else
 202                                 file = argv[2];
 203                         setenv(CONFIG_ENVIRONMENT, file, 1);
 204                         argc--;
 205                         argv++;
 206                 }
 207                 else if (!strcmp(argv[1], "--null") || !strcmp(argv[1], "-z")) {
 208                         term = '\0';
 209                         delim = '\n';
 210                         key_delim = '\n';
 211                 }
 212                 else if (!strcmp(argv[1], "--rename-section")) {
 213                         int ret;
 214                         if (argc != 4)
 215                                 usage(git_config_set_usage);
 216                         ret = git_config_rename_section(argv[2], argv[3]);
 217                         if (ret < 0)
 218                                 return ret;
 219                         if (ret == 0) {
 220                                 fprintf(stderr, "No such section!\n");
 221                                 return 1;
 222                         }
 223                         return 0;
 224                 }
 225                 else if (!strcmp(argv[1], "--remove-section")) {
 226                         int ret;
 227                         if (argc != 3)
 228                                 usage(git_config_set_usage);
 229                         ret = git_config_rename_section(argv[2], NULL);
 230                         if (ret < 0)
 231                                 return ret;
 232                         if (ret == 0) {
 233                                 fprintf(stderr, "No such section!\n");
 234                                 return 1;
 235                         }
 236                         return 0;
 237                 }
 238                 else
 239                         break;
 240                 argc--;
 241                 argv++;
 242         }
 243
 244         switch (argc) {
 245         case 2:
 246                 return get_value(argv[1], NULL);
 247         case 3:
 248                 if (!strcmp(argv[1], "--unset"))
 249                         return git_config_set(argv[2], NULL);
 250                 else if (!strcmp(argv[1], "--unset-all"))
 251                         return git_config_set_multivar(argv[2], NULL, NULL, 1);
 252                 else if (!strcmp(argv[1], "--get"))
 253                         return get_value(argv[2], NULL);
 254                 else if (!strcmp(argv[1], "--get-all")) {
 255                         do_all = 1;
 256                         return get_value(argv[2], NULL);
 257                 } else if (!strcmp(argv[1], "--get-regexp")) {
 258                         show_keys = 1;
 259                         use_key_regexp = 1;
 260                         do_all = 1;
 261                         return get_value(argv[2], NULL);
 262                 } else {
 263                         value = normalize_value(argv[1], argv[2]);
 264                         return git_config_set(argv[1], value);
 265                 }
 266         case 4:
 267                 if (!strcmp(argv[1], "--unset"))
 268                         return git_config_set_multivar(argv[2], NULL, argv[3], 0);
 269                 else if (!strcmp(argv[1], "--unset-all"))
 270                         return git_config_set_multivar(argv[2], NULL, argv[3], 1);
 271                 else if (!strcmp(argv[1], "--get"))
 272                         return get_value(argv[2], argv[3]);
 273                 else if (!strcmp(argv[1], "--get-all")) {
 274                         do_all = 1;
 275                         return get_value(argv[2], argv[3]);
 276                 } else if (!strcmp(argv[1], "--get-regexp")) {
 277                         show_keys = 1;
 278                         use_key_regexp = 1;
 279                         do_all = 1;
 280                         return get_value(argv[2], argv[3]);
 281                 } else if (!strcmp(argv[1], "--add")) {
 282                         value = normalize_value(argv[2], argv[3]);
 283                         return git_config_set_multivar(argv[2], value, "^$", 0);
 284                 } else if (!strcmp(argv[1], "--replace-all")) {
 285                         value = normalize_value(argv[2], argv[3]);
 286                         return git_config_set_multivar(argv[2], value, NULL, 1);
 287                 } else {
 288                         value = normalize_value(argv[1], argv[2]);
 289                         return git_config_set_multivar(argv[1], value, argv[3], 0);
 290                 }
 291         case 5:
 292                 if (!strcmp(argv[1], "--replace-all")) {
 293                         value = normalize_value(argv[2], argv[3]);
 294                         return git_config_set_multivar(argv[2], value, argv[4], 1);
 295                 }
 296         case 1:
 297         default:
 298                 usage(git_config_set_usage);
 299         }
 300         return 0;
 301 }