firstboot: get rid of firstboot generator again, introduce ConditionFirstBoot= instead

As Zbigniew pointed out a new ConditionFirstBoot= appears like the nicer
way to hook in systemd-firstboot.service on first boots (those with /etc
unpopulated), so let's do this, and get rid of the generator again.

1 files changed, 16 insertions, 9 deletions

diff --git a/src/core/manager.c b/src/core/manager.c
index 9d078c0af7..3dffbe259b 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -2477,7 +2477,7 @@ void manager_check_finished(Manager *m) {
         m->confirm_spawn = false;
 
         /* This is no longer the first boot */
-        m->is_first_boot = false;
+        manager_set_first_boot(m, false);
 
         if (dual_timestamp_is_set(&m->finish_timestamp))
                 return;
@@ -2631,7 +2631,6 @@ void manager_run_generators(Manager *m) {
         _cleanup_closedir_ DIR *d = NULL;
         const char *generator_path;
         const char *argv[5];
-        const char *env[2];
         int r;
 
         assert(m);
@@ -2665,14 +2664,8 @@ void manager_run_generators(Manager *m) {
         argv[3] = m->generator_unit_path_late;
         argv[4] = NULL;
 
-        if (m->is_first_boot) {
-                env[0] = (char*) "SYSTEMD_FIRST_BOOT=1";
-                env[1] = NULL;
-        } else
-                env[0] = NULL;
-
         RUN_WITH_UMASK(0022)
-                execute_directory(generator_path, d, DEFAULT_TIMEOUT_USEC, (char**) argv, (char**) env);
+                execute_directory(generator_path, d, DEFAULT_TIMEOUT_USEC, (char**) argv);
 
 finish:
         trim_generator_dir(m, &m->generator_unit_path);
@@ -2816,6 +2809,20 @@ static bool manager_get_show_status(Manager *m) {
         return plymouth_running();
 }
 
+void manager_set_first_boot(Manager *m, bool b) {
+        assert(m);
+
+        if (m->running_as != SYSTEMD_SYSTEM)
+                return;
+
+        m->first_boot = b;
+
+        if (m->first_boot)
+                touch("/run/systemd/first-boot");
+        else
+                unlink("/run/systemd/first-boot");
+}
+
 void manager_status_printf(Manager *m, bool ephemeral, const char *status, const char *format, ...) {
         va_list ap;