lib/intentions-queue: make execute_all_intentions() locking

* now, it's safe to call it in almost all places
* this enables us to do it at the start of many scripts, potentially cleaning up old left-over intentions

1 files changed, 8 insertions, 0 deletions

diff --git a/lib/intentions-queue b/lib/intentions-queue
index 61ec4f3..f244e1b 100755
--- a/lib/intentions-queue
+++ b/lib/intentions-queue
@@ -92,7 +92,15 @@ intentions_left() {
 # execute_all_intentions
 # executes all intentions
 execute_all_intentions() {
+  exec 6> "${intentions_lock_file}"
+  if ! verbose_flock 6; then
+    >&2 echo 'someone already executes intentions - no need to schedule a second run'
+    return
+  fi
+
   while intentions_left -n; do
     execute_intention
   done
+
+  flock -u 6
 }