add service file and support in the program

impermanence.pl

@@ -9,13 +9,14 @@ use Getopt::Std;;
 use Data::Dumper;
 use File::HomeDir;
 use File::Path qw(make_path);
+use Sys::Syslog qw(:standard :macros);
 use 5.010;
 
 my $verbose = 0;
 
 # display usage and quit
 sub usage {
-    say "usage: $0 [-v] -d directory -u user (start|stop|restart)";
+    say "usage: $0 [-v] -d directory -u user (start|stop|restart|status)";
     say "       $0 -t conf";
     exit 1;
 }
@@ -24,12 +25,14 @@ sub usage {
 sub saydebug {
     my $msg = shift;
     say STDERR "DEBUG: $msg" if $verbose;
+    syslog(LOG_INFO, "$msg");
 }
 
 # display a message before exiting with status 2
 sub trap_error {
     my $msg = shift;
     say STDERR "FATAL: $msg";
+    syslog(LOG_ERR, "$msg");
     exit 2;
 }
 
@@ -228,6 +231,8 @@ sub main {
         $start = 1;
     }elsif( $ARGV[0] eq "stop" ) {
         $stop = 1;
+    }elsif( $ARGV[0] eq "status" ) {
+        exit ! is_mounted($impermanence_home);
     }else{
         usage();
     }
@@ -246,4 +251,6 @@ sub main {
 
 }
 
-main()
+openlog("impermanence", 'ndelay', LOG_DAEMON);
+main();
+closelog();

openbsd/impermanence.rc

@@ -0,0 +1,22 @@
+#!/bin/ksh
+#
+
+daemon="/usr/local/bin/impermanence"
+
+. /etc/rc.d/rc.subr
+
+rc_reload=NO
+
+rc_start() {
+	$daemon ${daemon_flags} start
+}
+
+rc_stop() {
+	$daemon ${daemon_flags} stop
+}
+
+rc_check() {
+        $daemon ${daemon_flags} status
+}
+
+rc_cmd $1

tests/errored.yml

@@ -0,0 +1,2 @@
+key:
+value