X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/4a858c3921aabe5253204063bedb2307a60f30e0..5ef499349c609f5ef50bd633692faa2665f4f96f:/debian/apt.cron.daily

diff --git a/debian/apt.cron.daily b/debian/apt.cron.daily
index 2f1a59744..f4eb6117a 100644
--- a/debian/apt.cron.daily
+++ b/debian/apt.cron.daily
@@ -147,7 +147,7 @@ check_size_constraints()
     fi
 }
 
-# sleep for a random intervall of time (default 30min)
+# sleep for a random interval of time (default 30min)
 # (some code taken from cron-apt, thanks)
 random_sleep()
 {
@@ -193,8 +193,17 @@ if which on_ac_power >/dev/null; then
 fi
 
 # check if we can lock the cache and if the cache is clean
+# There's a reasonable chance that someone is already running an apt
+# frontend that has locked the cache, so exit quietly if it is locked.
+if ! apt-get check -q -q 2>/dev/null; then
+    exit 0
+fi
+
+# sleep random amount of time
+random_sleep
+
+# check again if we can access the cache
 if ! apt-get check -q -q 2>/dev/null; then
-    echo "$0: could not lock the APT cache"
     exit 1
 fi