From 83e25cf1768ba1f1504ce91f1deb0cd289836e2f Mon Sep 17 00:00:00 2001
From: onefang
Date: Tue, 18 Oct 2022 11:54:57 +1000
Subject: Check for stale lock file.

---
 update_apt-panopticon | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/update_apt-panopticon b/update_apt-panopticon
index f2f3387..7bbe1d7 100755
--- a/update_apt-panopticon
+++ b/update_apt-panopticon
@@ -11,10 +11,16 @@ if [ -f .git ] ; then
     #chown -R mirrors:www-data *
 fi
 
-if [ ! -f apt-panopticon.lock ] ; then
-    rm ../results; ln -s apt-panopticon/results_old ../results
-    flock -n apt-panopticon.lock ./apt-panopticon.lua && rm apt-panopticon.lock
-    rm ../results; ln -s apt-panopticon/results ../results
+# Check if the lock file still exists.
+if [ -f apt-panopticon.lock ] ; then
+    # Check if it's still running.
+    ps ax -eo pid,args | grep "luajit ./apt-panopticon.lua" | grep -v "grep luajit ./apt-panopticon.lua" | while read line ; do echo "Previous apt-panopticon still running, exiting." exit 1 ; done
+    echo "Crashed apt-panopticon detected, removing stale lock file."
+    rm apt-panopticon.lock
 fi
 
+rm ../results; ln -s apt-panopticon/results_old ../results
+flock -n apt-panopticon.lock ./apt-panopticon.lua && rm apt-panopticon.lock
+rm ../results; ln -s apt-panopticon/results ../results
+
 #chown -R mirrors:www-data /var/www/html/SledjHamr/apt-panopticon/results
-- 
cgit v1.1