manager: add systemd.show_status=auto mode

When set to auto, status will shown when the first ephemeral message
is shown (a job has been running for five seconds). Then until the
boot or shutdown ends, status messages will be shown.

No indication about the switch is done: I think it should be clear
for the user that first the cylon eye and the ephemeral messages appear,
and afterwards messages are displayed.

The initial arming of the event source was still wrong, but now should
really be fixed.

1 files changed, 20 insertions, 16 deletions

diff --git a/src/core/main.c b/src/core/main.c
index fb34e4d3d1..404fee7b2e 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -90,7 +90,7 @@ static bool arg_dump_core = true;
 static bool arg_crash_shell = false;
 static int arg_crash_chvt = -1;
 static bool arg_confirm_spawn = false;
-static bool arg_show_status = true;
+static ShowStatus arg_show_status = SHOW_STATUS_UNSET;
 static bool arg_switched_root = false;
 static char ***arg_join_controllers = NULL;
 static ExecOutput arg_default_std_output = EXEC_OUTPUT_JOURNAL;
@@ -338,10 +338,9 @@ static int parse_proc_cmdline_word(const char *word) {
         } else if (startswith(word, "systemd.show_status=")) {
                 int r;
 
-                if ((r = parse_boolean(word + 20)) < 0)
+                r = parse_show_status(word + 20, &arg_show_status);
+                if (r < 0)
                         log_warning("Failed to parse show status switch %s. Ignoring.", word + 20);
-                else
-                        arg_show_status = r;
         } else if (startswith(word, "systemd.default_standard_output=")) {
                 int r;
 
@@ -396,7 +395,7 @@ static int parse_proc_cmdline_word(const char *word) {
                                  "systemd.crash_shell=0|1                  Run shell on crash\n"
                                  "systemd.crash_chvt=N                     Change to VT #N on crash\n"
                                  "systemd.confirm_spawn=0|1                Confirm every process spawn\n"
-                                 "systemd.show_status=0|1                  Show status updates on the console during bootup\n"
+                                 "systemd.show_status=0|1|auto             Show status updates on the console during bootup\n"
                                  "systemd.log_target=console|kmsg|journal|journal-or-kmsg|syslog|syslog-or-kmsg|null\n"
                                  "                                         Log target\n"
                                  "systemd.log_level=LEVEL                  Log level\n"
@@ -409,9 +408,10 @@ static int parse_proc_cmdline_word(const char *word) {
                                  "systemd.setenv=ASSIGNMENT                Set an environment variable for all spawned processes\n");
                 }
 
-        } else if (streq(word, "quiet"))
-                arg_show_status = false;
-        else if (streq(word, "debug")) {
+        } else if (streq(word, "quiet")) {
+                if (arg_show_status == SHOW_STATUS_UNSET)
+                        arg_show_status = SHOW_STATUS_AUTO;
+        } else if (streq(word, "debug")) {
                 /* Log to kmsg, the journal socket will fill up before the
                  * journal is started and tools running during that time
                  * will block with every log message for for 60 seconds,
@@ -638,7 +638,7 @@ static int parse_config_file(void) {
                 { "Manager", "LogLocation",           config_parse_location,     0, NULL                     },
                 { "Manager", "DumpCore",              config_parse_bool,         0, &arg_dump_core           },
                 { "Manager", "CrashShell",            config_parse_bool,         0, &arg_crash_shell         },
-                { "Manager", "ShowStatus",            config_parse_bool,         0, &arg_show_status         },
+                { "Manager", "ShowStatus",            config_parse_show_status,  0, &arg_show_status         },
                 { "Manager", "CrashChVT",             config_parse_int,          0, &arg_crash_chvt          },
                 { "Manager", "CPUAffinity",           config_parse_cpu_affinity2, 0, NULL                    },
                 { "Manager", "DefaultStandardOutput", config_parse_output,       0, &arg_default_std_output  },
@@ -897,12 +897,14 @@ static int parse_argv(int argc, char *argv[]) {
                         break;
 
                 case ARG_SHOW_STATUS:
-                        r = optarg ? parse_boolean(optarg) : 1;
-                        if (r < 0) {
-                                log_error("Failed to parse show status boolean %s.", optarg);
-                                return r;
-                        }
-                        arg_show_status = r;
+                        if (optarg) {
+                                r = parse_show_status(optarg, &arg_show_status);
+                                if (r < 0) {
+                                        log_error("Failed to parse show status boolean %s.", optarg);
+                                        return r;
+                                }
+                        } else
+                                arg_show_status = SHOW_STATUS_YES;
                         break;
 
                 case ARG_DESERIALIZE: {
@@ -1482,7 +1484,7 @@ int main(int argc, char *argv[]) {
         }
 
         if (arg_running_as == SYSTEMD_SYSTEM && !skip_setup) {
-                if (arg_show_status || plymouth_running())
+                if (arg_show_status > 0 || plymouth_running())
                         status_welcome();
 
 #ifdef HAVE_KMOD
@@ -1557,6 +1559,8 @@ int main(int argc, char *argv[]) {
         if (arg_default_environment)
                 manager_environment_add(m, NULL, arg_default_environment);
 
+        if (arg_show_status == SHOW_STATUS_UNSET)
+                arg_show_status = SHOW_STATUS_YES;
         manager_set_show_status(m, arg_show_status);
 
         /* Remember whether we should queue the default job */