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systemctl: Add TriggeredBy and Triggers to status
For all units that aren't timers, if it is activated by another unit, add the triggering unit under the "TriggeredBy:" header. If a unit can trigger other units, print the units it triggers other the "Triggers:" header.
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TODO
1
TODO
@ -1107,7 +1107,6 @@ External:
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- <command> <verb> -<TAB> should complete options, but currently does not
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- systemctl add-wants,add-requires
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* systemctl status foo.service should say that it is trigger by foo.timer
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* systemctl status should know about 'systemd-analyze calendar ... --iterations='
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* If timer has just OnInactiveSec=..., it should fire after a specified time
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after being started.
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@ -4054,6 +4054,9 @@ typedef struct UnitStatusInfo {
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char **dropin_paths;
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char **triggered_by;
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char **triggers;
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const char *load_error;
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const char *result;
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@ -4138,6 +4141,8 @@ static void unit_status_info_free(UnitStatusInfo *info) {
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strv_free(info->documentation);
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strv_free(info->dropin_paths);
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strv_free(info->triggered_by);
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strv_free(info->triggers);
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strv_free(info->listen);
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while ((c = info->conditions)) {
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@ -4151,6 +4156,17 @@ static void unit_status_info_free(UnitStatusInfo *info) {
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}
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}
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static void format_active_state(const char *active_state, const char **active_on, const char **active_off) {
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if (streq_ptr(active_state, "failed")) {
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*active_on = ansi_highlight_red();
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*active_off = ansi_normal();
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} else if (STRPTR_IN_SET(active_state, "active", "reloading")) {
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*active_on = ansi_highlight_green();
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*active_off = ansi_normal();
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} else
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*active_on = *active_off = "";
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}
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static void print_status_info(
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sd_bus *bus,
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UnitStatusInfo *i,
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@ -4164,20 +4180,14 @@ static void print_status_info(
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const char *path;
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char **t, **t2;
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int r;
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bool is_timer;
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assert(i);
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/* This shows pretty information about a unit. See
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* print_property() for a low-level property printer */
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if (streq_ptr(i->active_state, "failed")) {
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active_on = ansi_highlight_red();
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active_off = ansi_normal();
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} else if (STRPTR_IN_SET(i->active_state, "active", "reloading")) {
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active_on = ansi_highlight_green();
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active_off = ansi_normal();
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} else
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active_on = active_off = "";
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format_active_state(i->active_state, &active_on, &active_off);
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printf("%s%s%s %s", active_on, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE), active_off, strna(i->id));
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@ -4282,7 +4292,28 @@ static void print_status_info(
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else
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printf("\n");
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if (endswith(i->id, ".timer")) {
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is_timer = endswith(i->id, ".timer");
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if (!is_timer && !strv_isempty(i->triggered_by)) {
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char **trigger;
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bool first = true;
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printf(" TriggeredBy:");
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STRV_FOREACH(trigger, i->triggered_by) {
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UnitActiveState state = _UNIT_ACTIVE_STATE_INVALID;
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(void) get_state_one_unit(bus, *trigger, &state);
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format_active_state(unit_active_state_to_string(state), &on, &off);
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if (first) {
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printf(" %s%s%s %s\n", on, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE), off, *trigger);
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first = false;
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} else {
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printf(" %s%s%s %s\n", on, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE), off, *trigger);
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}
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}
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}
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if (is_timer) {
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char tstamp1[FORMAT_TIMESTAMP_RELATIVE_MAX],
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tstamp2[FORMAT_TIMESTAMP_MAX];
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const char *next_rel_time, *next_time;
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@ -4303,6 +4334,25 @@ static void print_status_info(
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printf("n/a\n");
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}
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if (!strv_isempty(i->triggers)) {
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char **trigger;
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bool first = true;
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printf(" Triggers:");
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STRV_FOREACH(trigger, i->triggers) {
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UnitActiveState state = _UNIT_ACTIVE_STATE_INVALID;
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(void) get_state_one_unit(bus, *trigger, &state);
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format_active_state(unit_active_state_to_string(state), &on, &off);
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if (first) {
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printf(" %s%s%s %s\n", on, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE), off, *trigger);
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first = false;
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} else {
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printf(" %s%s%s %s\n", on, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE), off, *trigger);
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}
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}
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}
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if (!i->condition_result && i->condition_timestamp > 0) {
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UnitCondition *c;
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int n = 0;
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@ -5514,6 +5564,8 @@ static int show_one(
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{ "DropInPaths", "as", NULL, offsetof(UnitStatusInfo, dropin_paths) },
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{ "LoadError", "(ss)", map_load_error, offsetof(UnitStatusInfo, load_error) },
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{ "Result", "s", NULL, offsetof(UnitStatusInfo, result) },
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{ "TriggeredBy", "as", NULL, offsetof(UnitStatusInfo, triggered_by) },
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{ "Triggers", "as", NULL, offsetof(UnitStatusInfo, triggers) },
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{ "InactiveExitTimestamp", "t", NULL, offsetof(UnitStatusInfo, inactive_exit_timestamp) },
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{ "InactiveExitTimestampMonotonic", "t", NULL, offsetof(UnitStatusInfo, inactive_exit_timestamp_monotonic) },
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{ "ActiveEnterTimestamp", "t", NULL, offsetof(UnitStatusInfo, active_enter_timestamp) },
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