git.el: Refresh files from their real state upon commit.
[gitweb.git] / builtin-config.c
index 0f9051da17c6e399709bd476ab867f4505ecba63..e4a12e316648e6b0ab1ee0b424773f3c672c751e 100644 (file)
@@ -1,8 +1,9 @@
 #include "builtin.h"
 #include "cache.h"
+#include "color.h"
 
 static const char git_config_set_usage[] =
-"git-config [ --global ] [ --bool | --int ] [--get | --get-all | --get-regexp | --replace-all | --add | --unset | --unset-all] name [value [value_regex]] | --rename-section old_name new_name | --list";
+"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 | --get-color var [default] | --get-colorbool name [stdout-is-tty]";
 
 static char *key;
 static regex_t *key_regexp;
@@ -12,14 +13,17 @@ static int use_key_regexp;
 static int do_all;
 static int do_not_match;
 static int seen;
+static char delim = '=';
+static char key_delim = ' ';
+static char term = '\n';
 static enum { T_RAW, T_INT, T_BOOL } type = T_RAW;
 
 static int show_all_config(const char *key_, const char *value_)
 {
        if (value_)
-               printf("%s=%s\n", key_, value_);
+               printf("%s%c%s%c", key_, delim, value_, term);
        else
-               printf("%s\n", key_);
+               printf("%s%c", key_, term);
        return 0;
 }
 
@@ -34,12 +38,15 @@ static int show_config(const char* key_, const char* value_)
        if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
                return 0;
        if (regexp != NULL &&
-                        (do_not_match ^
-                         regexec(regexp, (value_?value_:""), 0, NULL, 0)))
+           (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
                return 0;
 
-       if (show_keys)
-               printf("%s ", key_);
+       if (show_keys) {
+               if (value_)
+                       printf("%s%c", key_, key_delim);
+               else
+                       printf("%s", key_);
+       }
        if (seen && !do_all)
                dup_error = 1;
        if (type == T_INT)
@@ -54,7 +61,7 @@ static int show_config(const char* key_, const char* value_)
                                key_, vptr);
        }
        else
-               printf("%s\n", vptr);
+               printf("%s%c", vptr, term);
 
        return 0;
 }
@@ -64,7 +71,7 @@ static int get_value(const char* key_, const char* regex_)
        int ret = -1;
        char *tl;
        char *global = NULL, *repo_config = NULL;
-       const char *local;
+       const char *system_wide = NULL, *local;
 
        local = getenv(CONFIG_ENVIRONMENT);
        if (!local) {
@@ -74,6 +81,7 @@ static int get_value(const char* key_, const char* regex_)
                        local = repo_config = xstrdup(git_path("config"));
                if (home)
                        global = xstrdup(mkpath("%s/.gitconfig", home));
+               system_wide = git_etc_gitconfig();
        }
 
        key = xstrdup(key_);
@@ -103,11 +111,15 @@ static int get_value(const char* key_, const char* regex_)
                }
        }
 
+       if (do_all && system_wide)
+               git_config_from_file(show_config, system_wide);
        if (do_all && global)
                git_config_from_file(show_config, global);
        git_config_from_file(show_config, local);
        if (!do_all && !seen && global)
                git_config_from_file(show_config, global);
+       if (!do_all && !seen && system_wide)
+               git_config_from_file(show_config, system_wide);
 
        free(key);
        if (regexp) {
@@ -126,28 +138,176 @@ static int get_value(const char* key_, const char* regex_)
        return ret;
 }
 
+char *normalize_value(const char *key, const char *value)
+{
+       char *normalized;
+
+       if (!value)
+               return NULL;
+
+       if (type == T_RAW)
+               normalized = xstrdup(value);
+       else {
+               normalized = xmalloc(64);
+               if (type == T_INT) {
+                       int v = git_config_int(key, value);
+                       sprintf(normalized, "%d", v);
+               }
+               else if (type == T_BOOL)
+                       sprintf(normalized, "%s",
+                               git_config_bool(key, value) ? "true" : "false");
+       }
+
+       return normalized;
+}
+
+static int get_color_found;
+static const char *get_color_slot;
+static char parsed_color[COLOR_MAXLEN];
+
+static int git_get_color_config(const char *var, const char *value)
+{
+       if (!strcmp(var, get_color_slot)) {
+               color_parse(value, var, parsed_color);
+               get_color_found = 1;
+       }
+       return 0;
+}
+
+static int get_color(int argc, const char **argv)
+{
+       /*
+        * grab the color setting for the given slot from the configuration,
+        * or parse the default value if missing, and return ANSI color
+        * escape sequence.
+        *
+        * e.g.
+        * git config --get-color color.diff.whitespace "blue reverse"
+        */
+       const char *def_color = NULL;
+
+       switch (argc) {
+       default:
+               usage(git_config_set_usage);
+       case 2:
+               def_color = argv[1];
+               /* fallthru */
+       case 1:
+               get_color_slot = argv[0];
+               break;
+       }
+
+       get_color_found = 0;
+       parsed_color[0] = '\0';
+       git_config(git_get_color_config);
+
+       if (!get_color_found && def_color)
+               color_parse(def_color, "command line", parsed_color);
+
+       fputs(parsed_color, stdout);
+       return 0;
+}
+
+static int stdout_is_tty;
+static int get_colorbool_found;
+static int get_diff_color_found;
+static int git_get_colorbool_config(const char *var, const char *value)
+{
+       if (!strcmp(var, get_color_slot)) {
+               get_colorbool_found =
+                       git_config_colorbool(var, value, stdout_is_tty);
+       }
+       if (!strcmp(var, "diff.color")) {
+               get_diff_color_found =
+                       git_config_colorbool(var, value, stdout_is_tty);
+       }
+       return 0;
+}
+
+static int get_colorbool(int argc, const char **argv)
+{
+       /*
+        * git config --get-colorbool <slot> [<stdout-is-tty>]
+        *
+        * returns "true" or "false" depending on how <slot>
+        * is configured.
+        */
+
+       if (argc == 2)
+               stdout_is_tty = git_config_bool("command line", argv[1]);
+       else if (argc == 1)
+               stdout_is_tty = isatty(1);
+       else
+               usage(git_config_set_usage);
+       get_colorbool_found = -1;
+       get_diff_color_found = -1;
+       get_color_slot = argv[0];
+       git_config(git_get_colorbool_config);
+
+       if (get_colorbool_found < 0) {
+               if (!strcmp(get_color_slot, "color.diff"))
+                       get_colorbool_found = get_diff_color_found;
+               if (get_colorbool_found < 0)
+                       get_colorbool_found = 0;
+       }
+
+       if (argc == 1) {
+               return get_colorbool_found ? 0 : 1;
+       } else {
+               printf("%s\n", get_colorbool_found ? "true" : "false");
+               return 0;
+       }
+}
+
 int cmd_config(int argc, const char **argv, const char *prefix)
 {
        int nongit = 0;
-       setup_git_directory_gently(&nongit);
+       char* value;
+       const char *file = setup_git_directory_gently(&nongit);
 
        while (1 < argc) {
                if (!strcmp(argv[1], "--int"))
                        type = T_INT;
                else if (!strcmp(argv[1], "--bool"))
                        type = T_BOOL;
-               else if (!strcmp(argv[1], "--list") || !strcmp(argv[1], "-l"))
-                       return git_config(show_all_config);
+               else if (!strcmp(argv[1], "--list") || !strcmp(argv[1], "-l")) {
+                       if (argc != 2)
+                               usage(git_config_set_usage);
+                       if (git_config(show_all_config) < 0 && file && errno)
+                               die("unable to read config file %s: %s", file,
+                                   strerror(errno));
+                       return 0;
+               }
                else if (!strcmp(argv[1], "--global")) {
                        char *home = getenv("HOME");
                        if (home) {
                                char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
-                               setenv("GIT_CONFIG", user_config, 1);
+                               setenv(CONFIG_ENVIRONMENT, user_config, 1);
                                free(user_config);
                        } else {
                                die("$HOME not set");
                        }
-               } else if (!strcmp(argv[1], "--rename-section")) {
+               }
+               else if (!strcmp(argv[1], "--system"))
+                       setenv(CONFIG_ENVIRONMENT, git_etc_gitconfig(), 1);
+               else if (!strcmp(argv[1], "--file") || !strcmp(argv[1], "-f")) {
+                       if (argc < 3)
+                               usage(git_config_set_usage);
+                       if (!is_absolute_path(argv[2]) && file)
+                               file = prefix_filename(file, strlen(file),
+                                                      argv[2]);
+                       else
+                               file = argv[2];
+                       setenv(CONFIG_ENVIRONMENT, file, 1);
+                       argc--;
+                       argv++;
+               }
+               else if (!strcmp(argv[1], "--null") || !strcmp(argv[1], "-z")) {
+                       term = '\0';
+                       delim = '\n';
+                       key_delim = '\n';
+               }
+               else if (!strcmp(argv[1], "--rename-section")) {
                        int ret;
                        if (argc != 4)
                                usage(git_config_set_usage);
@@ -159,6 +319,23 @@ int cmd_config(int argc, const char **argv, const char *prefix)
                                return 1;
                        }
                        return 0;
+               }
+               else if (!strcmp(argv[1], "--remove-section")) {
+                       int ret;
+                       if (argc != 3)
+                               usage(git_config_set_usage);
+                       ret = git_config_rename_section(argv[2], NULL);
+                       if (ret < 0)
+                               return ret;
+                       if (ret == 0) {
+                               fprintf(stderr, "No such section!\n");
+                               return 1;
+                       }
+                       return 0;
+               } else if (!strcmp(argv[1], "--get-color")) {
+                       return get_color(argc-2, argv+2);
+               } else if (!strcmp(argv[1], "--get-colorbool")) {
+                       return get_colorbool(argc-2, argv+2);
                } else
                        break;
                argc--;
@@ -183,9 +360,10 @@ int cmd_config(int argc, const char **argv, const char *prefix)
                        use_key_regexp = 1;
                        do_all = 1;
                        return get_value(argv[2], NULL);
-               } else
-
-                       return git_config_set(argv[1], argv[2]);
+               } else {
+                       value = normalize_value(argv[1], argv[2]);
+                       return git_config_set(argv[1], value);
+               }
        case 4:
                if (!strcmp(argv[1], "--unset"))
                        return git_config_set_multivar(argv[2], NULL, argv[3], 0);
@@ -201,17 +379,21 @@ int cmd_config(int argc, const char **argv, const char *prefix)
                        use_key_regexp = 1;
                        do_all = 1;
                        return get_value(argv[2], argv[3]);
-               } else if (!strcmp(argv[1], "--add"))
-                       return git_config_set_multivar(argv[2], argv[3], "^$", 0);
-               else if (!strcmp(argv[1], "--replace-all"))
-
-                       return git_config_set_multivar(argv[2], argv[3], NULL, 1);
-               else
-
-                       return git_config_set_multivar(argv[1], argv[2], argv[3], 0);
+               } else if (!strcmp(argv[1], "--add")) {
+                       value = normalize_value(argv[2], argv[3]);
+                       return git_config_set_multivar(argv[2], value, "^$", 0);
+               } else if (!strcmp(argv[1], "--replace-all")) {
+                       value = normalize_value(argv[2], argv[3]);
+                       return git_config_set_multivar(argv[2], value, NULL, 1);
+               } else {
+                       value = normalize_value(argv[1], argv[2]);
+                       return git_config_set_multivar(argv[1], value, argv[3], 0);
+               }
        case 5:
-               if (!strcmp(argv[1], "--replace-all"))
-                       return git_config_set_multivar(argv[2], argv[3], argv[4], 1);
+               if (!strcmp(argv[1], "--replace-all")) {
+                       value = normalize_value(argv[2], argv[3]);
+                       return git_config_set_multivar(argv[2], value, argv[4], 1);
+               }
        case 1:
        default:
                usage(git_config_set_usage);