# "APT::Periodic::AutocleanInterval"
# - Do "apt-get autoclean" every n-days (0=disable)
#
+# "APT::Periodic::Unattended-Upgrade"
+# - Run the "unattended-upgrade" security upgrade script
+# every n-days (0=disabled)
+# Requires the package "unattended-upgrades" and will write
+# a log in /var/log/unattended-upgrades
+#
# "APT::Archives::MaxAge",
# - Set maximum allowed age of a cache package file. If a cache
# package file is older it is deleted (0=disable)
-# we check here if autoclean was enough sizewise
-check_size_constraints()
-{
- # min-age in days
- MaxAge=0
- MaxSize=0
- CacheDir="var/cache/apt"
- CacheArchive="archives/"
- eval $(apt-config shell MaxAge APT::Archives::MaxAge)
- eval $(apt-config shell MaxSize APT::Archives::MaxSize)
- eval $(apt-config shell CacheDir Dir::Cache)
- eval $(apt-config shell CacheArchive Dir::Cache::archives)
-
- # sanity check
- if [ -z "$CacheDir" -o -z "$CacheArchive" ]; then
- echo "empty Dir::Cache or Dir::Cache::archives, exiting"
- exit
- fi
- Cache="/"$CacheDir$CacheArchive
-
- # check age
- if [ ! $MaxAge -eq 0 ]; then
- find $Cache -name "*.deb" -mtime +$MaxAge -print0 | xargs -r -0 rm -f
- fi
-
- # check size
- if [ ! $MaxSize -eq 0 ]; then
- # reverse-sort by mtime
- for file in $(ls -rt $Cache/*.deb); do
- du=$(du -s $Cache)
- size=${du%%/*}
- # check if the cache is small enough
- if [ $size -lt $MaxSize ]; then
- break
- fi
- # delete oldest file
- rm -f $file
- done
- fi
-}
-
-check_size_constraints
-
-
-
# we check here if autoclean was enough sizewise
check_size_constraints()
{
# check age
if [ ! $MaxAge -eq 0 ] && [ ! $MinAge -eq 0 ]; then
- find $Cache -name "*.deb" -mtime +$MaxAge -and -not -mtime -$MinAge -print0 | xargs -r -0 rm -f
+ find $Cache -name "*.deb" \( -mtime +$MaxAge -and -ctime +$MaxAge \) -and -not \( -mtime -$MinAge -or -ctime -$MinAge \) -print0 | xargs -r -0 rm -f
elif [ ! $MaxAge -eq 0 ]; then
- find $Cache -name "*.deb" -mtime +$MaxAge -print0 | xargs -r -0 rm -f
+ find $Cache -name "*.deb" -ctime +$MaxAge -and -mtime +$MaxAge -print0 | xargs -r -0 rm -f
fi
# check size
MinAge=$(($MinAge*24*60*60))
# reverse-sort by mtime
- for file in $(ls -rt $Cache/*.deb); do
+ for file in $(ls -rt $Cache/*.deb 2>/dev/null); do
du=$(du -s $Cache)
size=${du%%/*}
# check if the cache is small enough
# check for MinAge of the file
if [ ! $MinAge -eq 0 ]; then
- mtime=$(date --date=$(date -r $file --iso-8601) +%s)
- delta=$(($now-$mtime))
+ # check both ctime and mtime
+ mtime=$(stat -c %Y $file)
+ ctime=$(stat -c %Z $file)
+ if [ $mtime -gt $ctime ]; then
+ delta=$(($now-$mtime))
+ else
+ delta=$(($now-$ctime))
+ fi
#echo "$file ($delta), $MinAge"
if [ $delta -le $MinAge ]; then
#echo "Skiping $file (delta=$delta)"
- continue
+ break
fi
fi
AutocleanInterval=$DownloadUpgradeableInterval
eval $(apt-config shell AutocleanInterval APT::Periodic::Autoclean)
+UnattendedUpgradeInterval=0
+eval $(apt-config shell UnattendedUpgradeInterval APT::Periodic::Unattended-Upgrade)
+
+
# laptop check, on_ac_power returns:
# 0 (true) System is on mains power
# 1 (false) System is not on mains power
AUTOCLEAN_STAMP=/var/lib/apt/periodic/autoclean-stamp
if check_stamp $AUTOCLEAN_STAMP $AutocleanInterval; then
apt-get -qq autoclean
- check_size_contrains
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
+
# check cache size
check_size_constraints