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authorLukas Nykryn <lnykryn@redhat.com>2014-10-08 11:59:46 +0200
committerLukas Nykryn <lnykryn@redhat.com>2014-10-08 12:44:00 +0200
commite94937df954451eb4aa63573f0d7404ed2db987e (patch)
tree9dbafa0dd1e58991e7e761d83480b2f5276d0d28 /src/systemctl
parentcb87a73b45503eaa6bead291423a529b00d27156 (diff)
systemctl: add add-wants and add-requires verbs
Diffstat (limited to 'src/systemctl')
-rw-r--r--src/systemctl/systemctl.c100
1 files changed, 100 insertions, 0 deletions
diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
index 1c6fef484e..12175923e9 100644
--- a/src/systemctl/systemctl.c
+++ b/src/systemctl/systemctl.c
@@ -5288,6 +5288,100 @@ finish:
return r;
}
+static int add_dependency(sd_bus *bus, char **args) {
+ _cleanup_strv_free_ char **names = NULL;
+ _cleanup_free_ char *target = NULL;
+ const char *verb = args[0];
+ UnitDependency dep;
+ int r = 0;
+
+ if (!args[1])
+ return 0;
+
+ target = unit_name_mangle_with_suffix(args[1], MANGLE_NOGLOB, ".target");
+ if (!target)
+ return log_oom();
+
+ r = mangle_names(args+2, &names);
+ if (r < 0)
+ return r;
+
+ if (streq(verb, "add-wants"))
+ dep = UNIT_WANTS;
+ else if (streq(verb, "add-requires"))
+ dep = UNIT_REQUIRES;
+ else
+ assert_not_reached("Unknown verb");
+
+ if (!bus || avoid_bus()) {
+ UnitFileChange *changes = NULL;
+ unsigned n_changes = 0;
+
+ r = unit_file_add_dependency(arg_scope, arg_runtime, arg_root, names, target, dep, arg_force, &changes, &n_changes);
+
+ if (r < 0) {
+ log_error("Can't add dependency: %s", strerror(-r));
+ return r;
+ }
+
+ if (!arg_quiet)
+ dump_unit_file_changes(changes, n_changes);
+
+ unit_file_changes_free(changes, n_changes);
+
+ } else {
+ _cleanup_bus_message_unref_ sd_bus_message *reply = NULL, *m = NULL;
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+
+ r = sd_bus_message_new_method_call(
+ bus,
+ &m,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "AddDependencyUnitFiles");
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ r = sd_bus_message_append_strv(m, names);
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ r = sd_bus_message_append(m, "s", target);
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ r = sd_bus_message_append(m, "s", unit_dependency_to_string(dep));
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ r = sd_bus_message_append(m, "b", arg_runtime);
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ r = sd_bus_message_append(m, "b", arg_force);
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ r = sd_bus_call(bus, m, 0, &error, &reply);
+ if (r < 0) {
+ log_error("Failed to execute operation: %s", bus_error_message(&error, r));
+ return r;
+ }
+
+ r = deserialize_and_dump_unit_file_changes(reply);
+ if (r < 0)
+ return r;
+
+ if (!arg_no_reload)
+ r = daemon_reload(bus, args);
+ else
+ r = 0;
+ }
+
+ return r;
+}
+
static int preset_all(sd_bus *bus, char **args) {
UnitFileChange *changes = NULL;
unsigned n_changes = 0;
@@ -5533,6 +5627,10 @@ static void 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"
+ " add-wants TARGET NAME... Add 'Wants' dependency for the target\n"
+ " on specified one or more units\n"
+ " add-requires TARGET NAME... Add 'Requires' dependency for the target\n"
+ " on specified one or more units\n"
" get-default Get the name of the default target\n"
" set-default NAME Set the default target\n\n"
"Machine Commands:\n"
@@ -6543,6 +6641,8 @@ static int systemctl_main(sd_bus *bus, int argc, char *argv[], int bus_error) {
{ "get-default", EQUAL, 1, get_default, NOBUS },
{ "set-property", MORE, 3, set_property },
{ "is-system-running", EQUAL, 1, is_system_running },
+ { "add-wants", MORE, 3, add_dependency, NOBUS },
+ { "add-requires", MORE, 3, add_dependency, NOBUS },
{}
}, *verb = verbs;