chiark / gitweb /
localectl: add support for listing X11 keymap information
[elogind.git] / src / locale / localectl.c
index 383a17dee12d93390317706b7edc366fc85f652b..5739a1dcdd1b79967c8d97ae37b715648457939c 100644 (file)
@@ -53,7 +53,7 @@ static void pager_open_if_enabled(void) {
         if (arg_no_pager)
                 return;
 
-        pager_open();
+        pager_open(false);
 }
 
 static void polkit_agent_open_if_enabled(void) {
@@ -266,7 +266,7 @@ finish:
         return r;
 }
 
-static int list_locales(DBusConnection *bus, char **args, unsigned n) {
+static int add_locales_from_archive(Set *locales) {
         /* Stolen from glibc... */
 
         struct locarhead {
@@ -304,21 +304,15 @@ static int list_locales(DBusConnection *bus, char **args, unsigned n) {
         const struct namehashent *e;
         const void *p = MAP_FAILED;
         _cleanup_close_ int fd = -1;
-        _cleanup_strv_free_ char **l = NULL;
-        char **j;
-        Set *locales;
         size_t sz = 0;
         struct stat st;
         unsigned i;
         int r;
 
-        locales = set_new(string_hash_func, string_compare_func);
-        if (!locales)
-                return log_oom();
-
         fd = open("/usr/lib/locale/locale-archive", O_RDONLY|O_NOCTTY|O_CLOEXEC);
         if (fd < 0) {
-                log_error("Failed to open locale archive: %m");
+                if (errno != ENOENT)
+                        log_error("Failed to open locale archive: %m");
                 r = -errno;
                 goto finish;
         }
@@ -380,31 +374,89 @@ static int list_locales(DBusConnection *bus, char **args, unsigned n) {
                 }
         }
 
-        l = set_get_strv(locales);
-        if (!l) {
-                r = log_oom();
-                goto finish;
+        r = 0;
+
+ finish:
+        if (p != MAP_FAILED)
+                munmap((void*) p, sz);
+
+        return r;
+}
+
+static int add_locales_from_libdir (Set *locales) {
+        DIR _cleanup_closedir_ *dir;
+        struct dirent *entry;
+        int r;
+
+        dir = opendir("/usr/lib/locale");
+        if (!dir) {
+                log_error("Failed to open locale directory: %m");
+                return -errno;
         }
 
-        set_free(locales);
-        locales = NULL;
+        errno = 0;
+        while ((entry = readdir(dir))) {
+                char *z;
 
-        strv_sort(l);
+                if (entry->d_type != DT_DIR)
+                        continue;
 
-        pager_open_if_enabled();
+                if (ignore_file(entry->d_name))
+                        continue;
 
-        STRV_FOREACH(j, l)
-                puts(*j);
+                z = strdup(entry->d_name);
+                if (!z)
+                        return log_oom();
 
-        r = 0;
+                r = set_put(locales, z);
+                if (r < 0) {
+                        free(z);
 
-finish:
-        if (p != MAP_FAILED)
-                munmap((void*) p, sz);
+                        if (r != -EEXIST) {
+                                log_error("Failed to add locale: %s", strerror(-r));
+                                return r;
+                        }
+                }
 
-        set_free_free(locales);
+                errno = 0;
+        }
 
-        return r;
+        if (errno > 0) {
+                log_error("Failed to read locale directory: %m");
+                return -errno;
+        }
+
+        return 0;
+}
+
+static int list_locales(DBusConnection *bus, char **args, unsigned n) {
+        _cleanup_set_free_ Set *locales;
+        _cleanup_strv_free_ char **l = NULL;
+        int r;
+
+        locales = set_new(string_hash_func, string_compare_func);
+        if (!locales)
+                return log_oom();
+
+        r = add_locales_from_archive(locales);
+        if (r < 0 && r != -ENOENT)
+                return r;
+
+        r = add_locales_from_libdir(locales);
+        if (r < 0)
+                return r;
+
+        l = set_get_strv(locales);
+        if (!l)
+                return log_oom();
+
+        strv_sort(l);
+
+        pager_open_if_enabled();
+
+        strv_print(l);
+
+        return 0;
 }
 
 static int set_vconsole_keymap(DBusConnection *bus, char **args, unsigned n) {
@@ -485,7 +537,6 @@ static int nftw_cb(
 
 static int list_vconsole_keymaps(DBusConnection *bus, char **args, unsigned n) {
         char _cleanup_strv_free_ **l = NULL;
-        char **i;
 
         keymaps = set_new(string_hash_func, string_compare_func);
         if (!keymaps)
@@ -512,9 +563,7 @@ static int list_vconsole_keymaps(DBusConnection *bus, char **args, unsigned n) {
 
         pager_open_if_enabled();
 
-        STRV_FOREACH(i, l)
-                puts(*i);
-
+        strv_print(l);
 
         return 0;
 }
@@ -557,24 +606,132 @@ static int set_x11_keymap(DBusConnection *bus, char **args, unsigned n) {
                         DBUS_TYPE_INVALID);
 }
 
+static int list_x11_keymaps(DBusConnection *bus, char **args, unsigned n) {
+        _cleanup_fclose_ FILE *f = NULL;
+        char _cleanup_strv_free_ **list = NULL;
+        char line[LINE_MAX];
+        enum {
+                NONE,
+                MODELS,
+                LAYOUTS,
+                VARIANTS,
+                OPTIONS
+        } state = NONE, look_for;
+        int r;
+
+        if (n > 2) {
+                log_error("Too many arguments.");
+                return -EINVAL;
+        }
+
+        f = fopen("/usr/share/X11/xkb/rules/xorg.lst", "re");
+        if (!f) {
+                log_error("Failed to open keyboard mapping list. %m");
+                return -errno;
+        }
+
+        if (streq(args[0], "list-x11-keymap-models"))
+                look_for = MODELS;
+        else if (streq(args[0], "list-x11-keymap-layouts"))
+                look_for = LAYOUTS;
+        else if (streq(args[0], "list-x11-keymap-variants"))
+                look_for = VARIANTS;
+        else if (streq(args[0], "list-x11-keymap-options"))
+                look_for = OPTIONS;
+        else
+                assert_not_reached("Wrong parameter");
+
+        FOREACH_LINE(line, f, break) {
+                char *l, *w;
+
+                l = strstrip(line);
+
+                if (isempty(l))
+                        continue;
+
+                if (l[0] == '!') {
+                        if (startswith(l, "! model"))
+                                state = MODELS;
+                        else if (startswith(l, "! layout"))
+                                state = LAYOUTS;
+                        else if (startswith(l, "! variant"))
+                                state = VARIANTS;
+                        else if (startswith(l, "! option"))
+                                state = OPTIONS;
+                        else
+                                state = NONE;
+
+                        continue;
+                }
+
+                if (state != look_for)
+                        continue;
+
+                w = l + strcspn(l, WHITESPACE);
+
+                if (n > 1) {
+                        char *e;
+
+                        if (*w == 0)
+                                continue;
+
+                        *w = 0;
+                        w++;
+                        w += strspn(w, WHITESPACE);
+
+                        e = strchr(w, ':');
+                        if (!e)
+                                continue;
+
+                        *e = 0;
+
+                        if (!streq(w, args[1]))
+                                continue;
+                } else
+                        *w = 0;
+
+                 r = strv_extend(&list, l);
+                 if (r < 0)
+                         return log_oom();
+        }
+
+        if (strv_isempty(list)) {
+                log_error("Couldn't find any entries.");
+                return -ENOENT;
+        }
+
+        strv_sort(list);
+        strv_uniq(list);
+
+        pager_open_if_enabled();
+
+        strv_print(list);
+        return 0;
+}
+
 static int help(void) {
 
         printf("%s [OPTIONS...] COMMAND ...\n\n"
-               "Query or change system time and date settings.\n\n"
-               "  -h --help              Show this help\n"
-               "     --version           Show package version\n"
-               "     --no-convert        Don't convert keyboard mappings\n"
-               "     --no-pager          Do not pipe output into a pager\n"
-               "     --no-ask-password   Do not prompt for password\n"
-               "  -H --host=[USER@]HOST  Operate on remote host\n\n"
+               "Query or change system locale and keyboard settings.\n\n"
+               "  -h --help                Show this help\n"
+               "     --version             Show package version\n"
+               "     --no-convert          Don't convert keyboard mappings\n"
+               "     --no-pager            Do not pipe output into a pager\n"
+               "     --no-ask-password     Do not prompt for password\n"
+               "  -H --host=[USER@]HOST    Operate on remote host\n\n"
                "Commands:\n"
-               "  status                 Show current locale settings\n"
-               "  set-locale LOCALE...   Set system locale\n"
-               "  list-locales           Show known locales\n"
-               "  set-keymap MAP [MAP]   Set virtual console keyboard mapping\n"
-               "  list-keymaps           Show known virtual console keyboard mappings\n"
+               "  status                   Show current locale settings\n"
+               "  set-locale LOCALE...     Set system locale\n"
+               "  list-locales             Show known locales\n"
+               "  set-keymap MAP [MAP]     Set virtual console keyboard mapping\n"
+               "  list-keymaps             Show known virtual console keyboard mappings\n"
                "  set-x11-keymap LAYOUT [MODEL] [VARIANT] [OPTIONS]\n"
-               "                         Set X11 keyboard mapping\n",
+               "                           Set X11 keyboard mapping\n"
+               "  list-x11-keymap-models   Show known X11 keyboard mapping models\n"
+               "  list-x11-keymap-layouts  Show known X11 keyboard mapping layouts\n"
+               "  list-x11-keymap-variants [LAYOUT]\n"
+               "                           Show known X11 keyboard mapping variants\n"
+               "  list-x11-keymap-options  Show known X11 keyboard mapping options\n",
                program_invocation_short_name);
 
         return 0;
@@ -615,7 +772,6 @@ static int parse_argv(int argc, char *argv[]) {
 
                 case ARG_VERSION:
                         puts(PACKAGE_STRING);
-                        puts(DISTRIBUTION);
                         puts(SYSTEMD_FEATURES);
                         return 0;
 
@@ -660,12 +816,16 @@ static int localectl_main(DBusConnection *bus, int argc, char *argv[], DBusError
                 const int argc;
                 int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
         } verbs[] = {
-                { "status",         LESS,   1, show_status           },
-                { "set-locale",     MORE,   2, set_locale            },
-                { "list-locales",   EQUAL,  1, list_locales          },
-                { "set-keymap",     MORE,   2, set_vconsole_keymap   },
-                { "list-keymaps",   EQUAL,  1, list_vconsole_keymaps },
-                { "set-x11-keymap", MORE,   2, set_x11_keymap        },
+                { "status",                   LESS,   1, show_status           },
+                { "set-locale",               MORE,   2, set_locale            },
+                { "list-locales",             EQUAL,  1, list_locales          },
+                { "set-keymap",               MORE,   2, set_vconsole_keymap   },
+                { "list-keymaps",             EQUAL,  1, list_vconsole_keymaps },
+                { "set-x11-keymap",           MORE,   2, set_x11_keymap        },
+                { "list-x11-keymap-models",   EQUAL,  1, list_x11_keymaps      },
+                { "list-x11-keymap-layouts",  EQUAL,  1, list_x11_keymaps      },
+                { "list-x11-keymap-variants", LESS,   2, list_x11_keymaps      },
+                { "list-x11-keymap-options",  EQUAL,  1, list_x11_keymaps      },
         };
 
         int left;