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systemctl: add commands set-default and get-default

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systemctl set-default NAME links the default.target to the given unit,
get-default prints out the path to the currently set default target.
This commit is contained in:
Václav Pavlín
2013-05-30 20:44:41 -04:00
committed by Zbigniew Jędrzejewski-Szmek
parent 9749cd77bc
commit 99504dd4c1
7 changed files with 206 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/systemctl/systemctl.c
+64 -1
View File
@@ -1177,6 +1177,59 @@ static int list_dependencies(DBusConnection *bus, char **args) {
return list_dependencies_one(bus, u, 0, &units, 0);
}
static int get_default(DBusConnection *bus, char **args) {
char *path = NULL;
_cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
int r;
_cleanup_dbus_error_free_ DBusError error;
dbus_error_init(&error);
if (!bus || avoid_bus()) {
r = unit_file_get_default(arg_scope, arg_root, &path);
if (r < 0) {
log_error("Operation failed: %s", strerror(-r));
goto finish;
}
r = 0;
} else {
r = bus_method_call_with_reply(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"GetDefaultTarget",
&reply,
NULL,
DBUS_TYPE_INVALID);
if (r < 0) {
log_error("Operation failed: %s", strerror(-r));
goto finish;
}
if (!dbus_message_get_args(reply, &error,
DBUS_TYPE_STRING, &path,
DBUS_TYPE_INVALID)) {
log_error("Failed to parse reply: %s", bus_error_message(&error));
dbus_error_free(&error);
return -EIO;
}
}
if (path)
printf("%s\n", path);
finish:
if ((!bus || avoid_bus()) && path)
free(path);
return r;
}
struct job_info {
uint32_t id;
char *name, *type, *state;
@@ -4243,6 +4296,8 @@ static int enable_unit(DBusConnection *bus, char **args) {
r = unit_file_mask(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
else if (streq(verb, "unmask"))
r = unit_file_unmask(arg_scope, arg_runtime, arg_root, mangled_names, &changes, &n_changes);
else if (streq(verb, "set-default"))
r = unit_file_set_default(arg_scope, arg_root, args[1], &changes, &n_changes);
else
assert_not_reached("Unknown verb");
@@ -4286,6 +4341,8 @@ static int enable_unit(DBusConnection *bus, char **args) {
else if (streq(verb, "unmask")) {
method = "UnmaskUnitFiles";
send_force = false;
} else if (streq(verb, "set-default")) {
method = "SetDefaultTarget";
} else
assert_not_reached("Unknown verb");
@@ -4585,6 +4642,8 @@ static int systemctl_help(void) {
" unmask [NAME...] Unmask one or more units\n"
" link [PATH...] Link one or more units files into\n"
" the search path\n"
" get-default Get the name of the default target\n"
" set-default NAME Set the default target\n"
" is-enabled [NAME...] Check whether unit files are enabled\n\n"
"Job Commands:\n"
" list-jobs List jobs\n"
@@ -5646,6 +5705,8 @@ static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError
{ "link", MORE, 2, enable_unit },
{ "switch-root", MORE, 2, switch_root },
{ "list-dependencies", LESS, 2, list_dependencies },
{ "set-default", EQUAL, 2, enable_unit },
{ "get-default", LESS, 1, get_default },
};
int left;
@@ -5717,7 +5778,9 @@ static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError
!streq(verbs[i].verb, "preset") &&
!streq(verbs[i].verb, "mask") &&
!streq(verbs[i].verb, "unmask") &&
!streq(verbs[i].verb, "link")) {
!streq(verbs[i].verb, "link") &&
!streq(verbs[i].verb, "set-default") &&
!streq(verbs[i].verb, "get-default")) {
if (running_in_chroot() > 0) {
log_info("Running in chroot, ignoring request.");