Create lockfiles for cronjob

cron-scripts/10-test.sh

@@ -1,5 +1,16 @@
 #!/usr/bin/env -S guix shell bash -- bash
 
+test -e /tmp/cron-10-test.sh.lock && find /tmp/cron-10-test.sh.lock -cmin +10 -delete
+
+if test -e /tmp/cron-10-test.sh.lock
+then
+  echo "Lockfile exists"
+  exit 1
+fi
+
+echo "Creating lockfile"
+touch /tmp/cron-10-test.sh.lock
+
 set -x
 
 host_conf=$(hostname).scm
@@ -18,7 +29,9 @@ then
     else
       echo "guix system reconfigure /etc/config.scm failure"
       cp -v "/etc/config.scm.backup" "/etc/config.scm"
-      exit 1
     fi
   fi
 fi
+
+echo "Removing lockfile"
+rm -fv /tmp/cron-10-test.sh.lock