Updated French translation

[apt.git] / debian / apt.cron.daily

diff --git a/debian/apt.cron.daily b/debian/apt.cron.daily
index 778e3cefefb9da48091f95aae9d6db9e91b18b83..1ca830c930c5fbc40e8db288519f9b94c9f0994a 100644 (file)
--- a/debian/apt.cron.daily
+++ b/debian/apt.cron.daily
@@ -147,6 +147,28 @@ check_size_constraints()
     fi
 }
 
+# sleep for a random intervall of time (default 30min)
+# (some code taken from cron-apt, thanks)
+random_sleep()
+{
+    RandomSleep=1800
+    eval $(apt-config shell RandomSleep APT::Periodic::RandomSleep)
+    if [ $RandomSleep -eq 0 ]; then
+       return
+    fi
+    if [ -z "$RANDOM" ] ; then
+        # A fix for shells that do not have this bash feature.
+       RANDOM=$(dd if=/dev/urandom count=1 2> /dev/null | cksum | cut -c"1-5")
+    fi
+    TIME=$(($RANDOM % $RandomSleep))
+    sleep $TIME
+}
+
+# main
+
+if ! which apt-config >/dev/null; then
+       exit 0
+fi
 
 UpdateInterval=0
 DownloadUpgradeableInterval=0
@@ -170,6 +192,21 @@ if which on_ac_power >/dev/null; then
     fi
 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
+    exit 1
+fi
+
 UPDATE_STAMP=/var/lib/apt/periodic/update-stamp
 if check_stamp $UPDATE_STAMP $UpdateInterval; then
     if apt-get -qq update 2>/dev/null; then
@@ -186,17 +223,17 @@ if check_stamp $DOWNLOAD_UPGRADEABLE_STAMP $DownloadUpgradeableInterval; then
     update_stamp $DOWNLOAD_UPGRADEABLE_STAMP
 fi
 
-AUTOCLEAN_STAMP=/var/lib/apt/periodic/autoclean-stamp
-if check_stamp $AUTOCLEAN_STAMP $AutocleanInterval; then
-    apt-get -qq autoclean
-    update_stamp $AUTOCLEAN_STAMP
-fi
-
 UPGRADE_STAMP=/var/lib/apt/periodic/upgrade-stamp
 if check_stamp $UPGRADE_STAMP $UnattendedUpgradeInterval; then
     unattended-upgrade
     update_stamp $UPGRADE_STAMP
 fi
 
+AUTOCLEAN_STAMP=/var/lib/apt/periodic/autoclean-stamp
+if check_stamp $AUTOCLEAN_STAMP $AutocleanInterval; then
+    apt-get -qq autoclean
+    update_stamp $AUTOCLEAN_STAMP
+fi
+
 # check cache size 
 check_size_constraints