Documentation/git-rebase: fix --no-autostash formatting
[gitweb.git] / builtin / config.c
index 92ebf23f0a9aa0e052ad68d60e17d0783f633a1c..fddafbba368fa377d7a968081b696e606592dbdb 100644 (file)
@@ -21,8 +21,7 @@ static char key_delim = ' ';
 static char term = '\n';
 
 static int use_global_config, use_system_config, use_local_config;
-static const char *given_config_file;
-static const char *given_config_blob;
+static struct git_config_source given_config_source;
 static int actions, types;
 static const char *get_color_slot, *get_colorbool_slot;
 static int end_null;
@@ -55,8 +54,8 @@ static struct option builtin_config_options[] = {
        OPT_BOOL(0, "global", &use_global_config, N_("use global config file")),
        OPT_BOOL(0, "system", &use_system_config, N_("use system config file")),
        OPT_BOOL(0, "local", &use_local_config, N_("use repository config file")),
-       OPT_STRING('f', "file", &given_config_file, N_("file"), N_("use given config file")),
-       OPT_STRING(0, "blob", &given_config_blob, N_("blob-id"), N_("read config from given blob object")),
+       OPT_STRING('f', "file", &given_config_source.file, N_("file"), N_("use given config file")),
+       OPT_STRING(0, "blob", &given_config_source.blob, N_("blob-id"), N_("read config from given blob object")),
        OPT_GROUP(N_("Action")),
        OPT_BIT(0, "get", &actions, N_("get value: name [value-regex]"), ACTION_GET),
        OPT_BIT(0, "get-all", &actions, N_("get all values: key [value-regex]"), ACTION_GET_ALL),
@@ -70,8 +69,8 @@ static struct option builtin_config_options[] = {
        OPT_BIT(0, "remove-section", &actions, N_("remove a section: name"), ACTION_REMOVE_SECTION),
        OPT_BIT('l', "list", &actions, N_("list all"), ACTION_LIST),
        OPT_BIT('e', "edit", &actions, N_("open an editor"), ACTION_EDIT),
-       OPT_STRING(0, "get-color", &get_color_slot, N_("slot"), N_("find the color configured: [default]")),
-       OPT_STRING(0, "get-colorbool", &get_colorbool_slot, N_("slot"), N_("find the color setting: [stdout-is-tty]")),
+       OPT_BIT(0, "get-color", &actions, N_("find the color configured: slot [default]"), ACTION_GET_COLOR),
+       OPT_BIT(0, "get-colorbool", &actions, N_("find the color setting: slot [stdout-is-tty]"), ACTION_GET_COLORBOOL),
        OPT_GROUP(N_("Type")),
        OPT_BIT(0, "bool", &types, N_("value is \"true\" or \"false\""), TYPE_BOOL),
        OPT_BIT(0, "int", &types, N_("value is decimal number"), TYPE_INT),
@@ -224,8 +223,7 @@ static int get_value(const char *key_, const char *regex_)
        }
 
        git_config_with_options(collect_config, &values,
-                               given_config_file, given_config_blob,
-                               respect_includes);
+                               &given_config_source, respect_includes);
 
        ret = !values.nr;
 
@@ -298,22 +296,25 @@ static int git_get_color_config(const char *var, const char *value, void *cb)
        if (!strcmp(var, get_color_slot)) {
                if (!value)
                        config_error_nonbool(var);
-               color_parse(value, var, parsed_color);
+               if (color_parse(value, parsed_color) < 0)
+                       return -1;
                get_color_found = 1;
        }
        return 0;
 }
 
-static void get_color(const char *def_color)
+static void get_color(const char *var, const char *def_color)
 {
+       get_color_slot = var;
        get_color_found = 0;
        parsed_color[0] = '\0';
        git_config_with_options(git_get_color_config, NULL,
-                               given_config_file, given_config_blob,
-                               respect_includes);
+                               &given_config_source, respect_includes);
 
-       if (!get_color_found && def_color)
-               color_parse(def_color, "command line", parsed_color);
+       if (!get_color_found && def_color) {
+               if (color_parse(def_color, parsed_color) < 0)
+                       die(_("unable to parse default color value"));
+       }
 
        fputs(parsed_color, stdout);
 }
@@ -333,14 +334,14 @@ static int git_get_colorbool_config(const char *var, const char *value,
        return 0;
 }
 
-static int get_colorbool(int print)
+static int get_colorbool(const char *var, int print)
 {
+       get_colorbool_slot = var;
        get_colorbool_found = -1;
        get_diff_color_found = -1;
        get_color_ui_found = -1;
        git_config_with_options(git_get_colorbool_config, NULL,
-                               given_config_file, given_config_blob,
-                               respect_includes);
+                               &given_config_source, respect_includes);
 
        if (get_colorbool_found < 0) {
                if (!strcmp(get_colorbool_slot, "color.diff"))
@@ -362,9 +363,12 @@ static int get_colorbool(int print)
                return get_colorbool_found ? 0 : 1;
 }
 
-static void check_blob_write(void)
+static void check_write(void)
 {
-       if (given_config_blob)
+       if (given_config_source.use_stdin)
+               die("writing to stdin is not supported");
+
+       if (given_config_source.blob)
                die("writing config blobs is not supported");
 }
 
@@ -396,19 +400,6 @@ static int urlmatch_collect_fn(const char *var, const char *value, void *cb)
        return 0;
 }
 
-static char *dup_downcase(const char *string)
-{
-       char *result;
-       size_t len, i;
-
-       len = strlen(string);
-       result = xmalloc(len + 1);
-       for (i = 0; i < len; i++)
-               result[i] = tolower(string[i]);
-       result[i] = '\0';
-       return result;
-}
-
 static int get_urlmatch(const char *var, const char *url)
 {
        char *section_tail;
@@ -423,7 +414,7 @@ static int get_urlmatch(const char *var, const char *url)
        if (!url_normalize(url, &config.url))
                die("%s", config.url.err);
 
-       config.section = dup_downcase(var);
+       config.section = xstrdup_tolower(var);
        section_tail = strchr(config.section, '.');
        if (section_tail) {
                *section_tail = '\0';
@@ -435,7 +426,7 @@ static int get_urlmatch(const char *var, const char *url)
        }
 
        git_config_with_options(urlmatch_config_entry, &config,
-                               given_config_file, NULL, respect_includes);
+                               &given_config_source, respect_includes);
 
        for_each_string_list_item(item, &values) {
                struct urlmatch_current_candidate_value *matched = item->util;
@@ -459,23 +450,43 @@ static int get_urlmatch(const char *var, const char *url)
        return 0;
 }
 
+static char *default_user_config(void)
+{
+       struct strbuf buf = STRBUF_INIT;
+       strbuf_addf(&buf,
+                   _("# This is Git's per-user configuration file.\n"
+                     "[core]\n"
+                     "# Please adapt and uncomment the following lines:\n"
+                     "#        user = %s\n"
+                     "#        email = %s\n"),
+                   ident_default_name(),
+                   ident_default_email());
+       return strbuf_detach(&buf, NULL);
+}
+
 int cmd_config(int argc, const char **argv, const char *prefix)
 {
        int nongit = !startup_info->have_repository;
        char *value;
 
-       given_config_file = getenv(CONFIG_ENVIRONMENT);
+       given_config_source.file = getenv(CONFIG_ENVIRONMENT);
 
        argc = parse_options(argc, argv, prefix, builtin_config_options,
                             builtin_config_usage,
                             PARSE_OPT_STOP_AT_NON_OPTION);
 
        if (use_global_config + use_system_config + use_local_config +
-           !!given_config_file + !!given_config_blob > 1) {
+           !!given_config_source.file + !!given_config_source.blob > 1) {
                error("only one config file at a time.");
                usage_with_options(builtin_config_usage, builtin_config_options);
        }
 
+       if (given_config_source.file &&
+                       !strcmp(given_config_source.file, "-")) {
+               given_config_source.file = NULL;
+               given_config_source.use_stdin = 1;
+       }
+
        if (use_global_config) {
                char *user_config = NULL;
                char *xdg_config = NULL;
@@ -493,24 +504,24 @@ int cmd_config(int argc, const char **argv, const char *prefix)
 
                if (access_or_warn(user_config, R_OK, 0) &&
                    xdg_config && !access_or_warn(xdg_config, R_OK, 0))
-                       given_config_file = xdg_config;
+                       given_config_source.file = xdg_config;
                else
-                       given_config_file = user_config;
+                       given_config_source.file = user_config;
        }
        else if (use_system_config)
-               given_config_file = git_etc_gitconfig();
+               given_config_source.file = git_etc_gitconfig();
        else if (use_local_config)
-               given_config_file = git_pathdup("config");
-       else if (given_config_file) {
-               if (!is_absolute_path(given_config_file) && prefix)
-                       given_config_file =
+               given_config_source.file = git_pathdup("config");
+       else if (given_config_source.file) {
+               if (!is_absolute_path(given_config_source.file) && prefix)
+                       given_config_source.file =
                                xstrdup(prefix_filename(prefix,
                                                        strlen(prefix),
-                                                       given_config_file));
+                                                       given_config_source.file));
        }
 
        if (respect_includes == -1)
-               respect_includes = !given_config_file;
+               respect_includes = !given_config_source.file;
 
        if (end_null) {
                term = '\0';
@@ -523,12 +534,7 @@ int cmd_config(int argc, const char **argv, const char *prefix)
                usage_with_options(builtin_config_usage, builtin_config_options);
        }
 
-       if (get_color_slot)
-           actions |= ACTION_GET_COLOR;
-       if (get_colorbool_slot)
-           actions |= ACTION_GET_COLORBOOL;
-
-       if ((get_color_slot || get_colorbool_slot) && types) {
+       if ((actions & (ACTION_GET_COLOR|ACTION_GET_COLORBOOL)) && types) {
                error("--get-color and variable type are incoherent");
                usage_with_options(builtin_config_usage, builtin_config_options);
        }
@@ -549,57 +555,70 @@ int cmd_config(int argc, const char **argv, const char *prefix)
        if (actions == ACTION_LIST) {
                check_argc(argc, 0, 0);
                if (git_config_with_options(show_all_config, NULL,
-                                           given_config_file,
-                                           given_config_blob,
+                                           &given_config_source,
                                            respect_includes) < 0) {
-                       if (given_config_file)
+                       if (given_config_source.file)
                                die_errno("unable to read config file '%s'",
-                                         given_config_file);
+                                         given_config_source.file);
                        else
                                die("error processing config file(s)");
                }
        }
        else if (actions == ACTION_EDIT) {
+               const char *config_file = given_config_source.file ?
+                       given_config_source.file : git_path("config");
                check_argc(argc, 0, 0);
-               if (!given_config_file && nongit)
+               if (!given_config_source.file && nongit)
                        die("not in a git directory");
-               if (given_config_blob)
+               if (given_config_source.use_stdin)
+                       die("editing stdin is not supported");
+               if (given_config_source.blob)
                        die("editing blobs is not supported");
                git_config(git_default_config, NULL);
-               launch_editor(given_config_file ?
-                             given_config_file : git_path("config"),
-                             NULL, NULL);
+               if (use_global_config) {
+                       int fd = open(config_file, O_CREAT | O_EXCL | O_WRONLY, 0666);
+                       if (fd) {
+                               char *content = default_user_config();
+                               write_str_in_full(fd, content);
+                               free(content);
+                               close(fd);
+                       }
+                       else if (errno != EEXIST)
+                               die_errno(_("cannot create configuration file %s"), config_file);
+               }
+               launch_editor(config_file, NULL, NULL);
        }
        else if (actions == ACTION_SET) {
                int ret;
-               check_blob_write();
+               check_write();
                check_argc(argc, 2, 2);
                value = normalize_value(argv[0], argv[1]);
-               ret = git_config_set_in_file(given_config_file, argv[0], value);
+               ret = git_config_set_in_file(given_config_source.file, argv[0], value);
                if (ret == CONFIG_NOTHING_SET)
                        error("cannot overwrite multiple values with a single value\n"
                        "       Use a regexp, --add or --replace-all to change %s.", argv[0]);
                return ret;
        }
        else if (actions == ACTION_SET_ALL) {
-               check_blob_write();
+               check_write();
                check_argc(argc, 2, 3);
                value = normalize_value(argv[0], argv[1]);
-               return git_config_set_multivar_in_file(given_config_file,
+               return git_config_set_multivar_in_file(given_config_source.file,
                                                       argv[0], value, argv[2], 0);
        }
        else if (actions == ACTION_ADD) {
-               check_blob_write();
+               check_write();
                check_argc(argc, 2, 2);
                value = normalize_value(argv[0], argv[1]);
-               return git_config_set_multivar_in_file(given_config_file,
-                                                      argv[0], value, "^$", 0);
+               return git_config_set_multivar_in_file(given_config_source.file,
+                                                      argv[0], value,
+                                                      CONFIG_REGEX_NONE, 0);
        }
        else if (actions == ACTION_REPLACE_ALL) {
-               check_blob_write();
+               check_write();
                check_argc(argc, 2, 3);
                value = normalize_value(argv[0], argv[1]);
-               return git_config_set_multivar_in_file(given_config_file,
+               return git_config_set_multivar_in_file(given_config_source.file,
                                                       argv[0], value, argv[2], 1);
        }
        else if (actions == ACTION_GET) {
@@ -623,26 +642,26 @@ int cmd_config(int argc, const char **argv, const char *prefix)
                return get_urlmatch(argv[0], argv[1]);
        }
        else if (actions == ACTION_UNSET) {
-               check_blob_write();
+               check_write();
                check_argc(argc, 1, 2);
                if (argc == 2)
-                       return git_config_set_multivar_in_file(given_config_file,
+                       return git_config_set_multivar_in_file(given_config_source.file,
                                                               argv[0], NULL, argv[1], 0);
                else
-                       return git_config_set_in_file(given_config_file,
+                       return git_config_set_in_file(given_config_source.file,
                                                      argv[0], NULL);
        }
        else if (actions == ACTION_UNSET_ALL) {
-               check_blob_write();
+               check_write();
                check_argc(argc, 1, 2);
-               return git_config_set_multivar_in_file(given_config_file,
+               return git_config_set_multivar_in_file(given_config_source.file,
                                                       argv[0], NULL, argv[1], 1);
        }
        else if (actions == ACTION_RENAME_SECTION) {
                int ret;
-               check_blob_write();
+               check_write();
                check_argc(argc, 2, 2);
-               ret = git_config_rename_section_in_file(given_config_file,
+               ret = git_config_rename_section_in_file(given_config_source.file,
                                                        argv[0], argv[1]);
                if (ret < 0)
                        return ret;
@@ -651,9 +670,9 @@ int cmd_config(int argc, const char **argv, const char *prefix)
        }
        else if (actions == ACTION_REMOVE_SECTION) {
                int ret;
-               check_blob_write();
+               check_write();
                check_argc(argc, 1, 1);
-               ret = git_config_rename_section_in_file(given_config_file,
+               ret = git_config_rename_section_in_file(given_config_source.file,
                                                        argv[0], NULL);
                if (ret < 0)
                        return ret;
@@ -661,12 +680,14 @@ int cmd_config(int argc, const char **argv, const char *prefix)
                        die("No such section!");
        }
        else if (actions == ACTION_GET_COLOR) {
-               get_color(argv[0]);
+               check_argc(argc, 1, 2);
+               get_color(argv[0], argv[1]);
        }
        else if (actions == ACTION_GET_COLORBOOL) {
-               if (argc == 1)
-                       color_stdout_is_tty = git_config_bool("command line", argv[0]);
-               return get_colorbool(argc != 0);
+               check_argc(argc, 1, 2);
+               if (argc == 2)
+                       color_stdout_is_tty = git_config_bool("command line", argv[1]);
+               return get_colorbool(argv[0], argc == 2);
        }
 
        return 0;