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systemctl: filter shown units by their load state

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E.g. systemctl --all -t masked gives the list of masked units.

The -t/--type option is reused. This is possible because unit types
and unit load states are called differently, so it is possible to
distinguish what the user meant. Using the same option also means that
the interface is user for the user: less options to remember.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2012-07-10 18:03:03 +02:00 committed by Lennart Poettering
parent f69614f811
commit c147dc42f8
2 changed files with 34 additions and 15 deletions
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28
man/systemctl.xml
View File

@ -87,14 +87,26 @@
<term><option>--type=</option></term>
<term><option>-t</option></term>
<listitem><para>When listing units,
limit display to certain unit
types. If not specified units of all
types will be shown. The argument
should be a unit type name such as
<option>service</option>,
<option>socket</option> and
similar.</para></listitem>
<listitem><para>The argument should
be a unit type name such as
<option>service</option> and
<option>socket</option>,
or a unit load state such as
<option>loaded</option> and
<option>masked</option>.
</para>
<para>If the argument is a unit type,
when listing units, limit display to
certain unit types. If not specified
units of all types will be shown.</para>
<para>If the argument is a unit load state,
when listing units, limit display to
certain unit types. If not specified
units of in all load states will be
shown.</para>
</listitem>
</varlistentry>
<varlistentry>

21
src/systemctl/systemctl.c
View File

@ -65,6 +65,7 @@
#include "path-util.h"
static const char *arg_type = NULL;
static const char *arg_load_state = NULL;
static char **arg_property = NULL;
static bool arg_all = false;
static const char *arg_job_mode = "replace";
@ -337,7 +338,9 @@ static bool output_show_unit(const struct unit_info *u) {
return (!arg_type || ((dot = strrchr(u->id, '.')) &&
streq(dot+1, arg_type))) &&
(arg_all || !(streq(u->active_state, "inactive") || u->following[0]) || u->job_id > 0);
(!arg_load_state || streq(u->load_state, arg_load_state)) &&
(arg_all || !(streq(u->active_state, "inactive")
|| u->following[0]) || u->job_id > 0);
}
static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
@ -4650,13 +4653,17 @@ static int systemctl_parse_argv(int argc, char *argv[]) {
return 0;
case 't':
if (unit_type_from_string(optarg) < 0) {
log_error("Invalid unit type '%s'.", optarg);
return -EINVAL;
if (unit_type_from_string(optarg) >= 0) {
arg_type = optarg;
break;
}
arg_type = optarg;
break;
if (unit_load_state_from_string(optarg) >= 0) {
arg_load_state = optarg;
break;
}
log_error("Unkown unit type or load state '%s'.",
optarg);
return -EINVAL;
case 'p': {
char **l;