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timedatectl: add 'show' command to display machine-readable output

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Closes #9249.
This commit is contained in:
Yu Watanabe 2018-06-10 17:17:34 +09:00 committed by Lennart Poettering
parent 28e1a3ec44
commit ead0adb161
3 changed files with 44 additions and 11 deletions
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30
man/timedatectl.xml
View File

@ -146,6 +146,16 @@
</para></listitem>
</varlistentry>
<varlistentry>
<term><command>show</command></term>
<listitem><para>Show the same information as <option>status</option>, but in machine readable form.
This command is intended to be used whenever computer-parsable output is required.
Use <option>status</option> if you are looking for formatted human-readable output.</para>
<para>By default, empty properties are suppressed. Use <option>--all</option> to show those too.
To select specific properties to show, use <option>--property=</option>.</para></listitem>
</varlistentry>
<varlistentry>
<term><command>set-time [TIME]</command></term>
@ -207,11 +217,12 @@
</variablelist>
<refsect2><title>systemd-timesyncd Commands</title>
<refsect2>
<title>systemd-timesyncd Commands</title>
<para>The following commands are specific to
<citerefentry><refentrytitle>systemd-timesyncd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
</para>
<para>The following commands are specific to
<citerefentry><refentrytitle>systemd-timesyncd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
</para>
<variablelist>
<varlistentry>
@ -225,12 +236,11 @@
<varlistentry>
<term><command>show-timesync</command></term>
<listitem><para>Show properties of the manager of
<citerefentry><refentrytitle>systemd-timesyncd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
By default, empty properties are suppressed. Use <option>--all</option> to show those too. To select specific
properties to show, use <option>--property=</option>. This command is intended to be used whenever
computer-parsable output is required. Use <option>timesync-status</option> if you are looking for formatted
human-readable output.</para></listitem>
<listitem><para>Show the same information as <option>timesync-status</option>, but in machine readable form.
This command is intended to be used whenever computer-parsable output is required.
Use <option>timesync-status</option> if you are looking for formatted human-readable output.</para>
<para>By default, empty properties are suppressed. Use <option>--all</option> to show those too.
To select specific properties to show, use <option>--property=</option>.</para></listitem>
</varlistentry>
</variablelist>

3
src/shared/bus-util.c
View File

@ -696,7 +696,8 @@ int bus_print_property(const char *name, sd_bus_message *m, bool value, bool all
/* Yes, heuristics! But we can change this check
* should it turn out to not be sufficient */
if (endswith(name, "Timestamp") || STR_IN_SET(name, "NextElapseUSecRealtime", "LastTriggerUSec")) {
if (endswith(name, "Timestamp") ||
STR_IN_SET(name, "NextElapseUSecRealtime", "LastTriggerUSec", "TimeUSec", "RTCTimeUSec")) {
char timestamp[FORMAT_TIMESTAMP_MAX];
const char *t;

22
src/timedate/timedatectl.c
View File

@ -168,6 +168,26 @@ static int show_status(int argc, char **argv, void *userdata) {
return r;
}
static int show_properties(int argc, char **argv, void *userdata) {
sd_bus *bus = userdata;
int r;
assert(bus);
r = bus_print_all_properties(bus,
"org.freedesktop.timedate1",
"/org/freedesktop/timedate1",
NULL,
arg_property,
arg_value,
arg_all,
NULL);
if (r < 0)
return bus_log_parse_error(r);
return 0;
}
static int set_time(int argc, char **argv, void *userdata) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
bool relative = false, interactive = arg_ask_password;
@ -696,6 +716,7 @@ static int help(void) {
"\n"
"Commands:\n"
" status Show current time settings\n"
" show Show properties of systemd-timedated\n"
" set-time TIME Set system time\n"
" set-timezone ZONE Set system time zone\n"
" list-timezones Show known time zones\n"
@ -815,6 +836,7 @@ static int timedatectl_main(sd_bus *bus, int argc, char *argv[]) {
static const Verb verbs[] = {
{ "status", VERB_ANY, 1, VERB_DEFAULT, show_status },
{ "show", VERB_ANY, 1, 0, show_properties },
{ "set-time", 2, 2, 0, set_time },
{ "set-timezone", 2, 2, 0, set_timezone },
{ "list-timezones", VERB_ANY, 1, 0, list_timezones },