#
# This file understands the following apt configuration variables:
# Values here are the default.
-# Create /etc/apt/apt.conf.d/02periodic file to set your preference.
+# Create /etc/apt/apt.conf.d/10periodic file to set your preference.
#
# Dir "/";
# - RootDir for all configuration files
# APT::Archives::MinAge "2"; (old, deprecated)
# APT::Periodic::MinAge "2"; (new)
# - Set minimum age of a package file. If a file is younger it
-# will not be deleted (0=disable). Usefull to prevent races
+# will not be deleted (0=disable). Useful to prevent races
# and to keep backups of the packages for emergency.
#
# APT::Archives::MaxSize "0"; (old, deprecated)
# APT::Periodic::MaxSize "0"; (new)
# - Set maximum size of the cache in MB (0=disable). If the cache
# is bigger, cached package files are deleted until the size
-# requirement is met (the biggest packages will be deleted
+# requirement is met (the oldest packages will be deleted
# first).
#
# APT::Periodic::Update-Package-Lists "0";
# APT::Periodic::AutocleanInterval "0";
# - Do "apt-get autoclean" every n-days (0=disable)
#
+# APT::Periodic::CleanInterval "0";
+# - Do "apt-get clean" every n-days (0=disable)
+#
# APT::Periodic::Verbose "0";
# - Send report mail to root
# 0: no report (or null string)
# 1: progress report (actually any string)
# 2: + command outputs (remove -qq, remove 2>/dev/null, add -d)
# 3: + trace on
+#
+# APT::Periodic::RandomSleep "1800";
+# - The apt cron job will delay its execution by a random
+# time span between zero and 'APT::Periodic::RandomSleep'
+# seconds.
+# This is done because otherwise everyone would access the
+# mirror servers at the same time and put them collectively
+# under very high strain.
+# You can set this to '0' if you are using a local mirror and
+# do not care about the load spikes.
+# Note that sleeping in the apt job will be delaying the
+# execution of all subsequent cron.daily jobs.
+#
check_stamp()
{
stamp=$(date --date=$(date -r $stamp_file --iso-8601) +%s 2>/dev/null)
if [ "$?" != "0" ]; then
# Due to some timezones returning 'invalid date' for midnight on
- # certain dates (eg America/Sao_Paulo), if date returns with error
+ # certain dates (e.g. America/Sao_Paulo), if date returns with error
# remove the stamp file and return 0. See coreutils bug:
# http://lists.gnu.org/archive/html/bug-coreutils/2007-09/msg00176.html
rm -f "$stamp_file"
now=$(date --date=$(date --iso-8601) +%s 2>/dev/null)
if [ "$?" != "0" ]; then
# As above, due to some timezones returning 'invalid date' for midnight
- # on certain dates (eg America/Sao_Paulo), if date returns with error
+ # on certain dates (e.g. America/Sao_Paulo), if date returns with error
# return 0.
return 0
fi
delta=$(($now-$stamp))
- # intervall is in days, convert to sec.
+ # interval is in days, convert to sec.
interval=$(($interval*60*60*24))
debug_echo "check_stamp: interval=$interval, now=$now, stamp=$stamp, delta=$delta (sec)"
delta=$(($now-$ctime))
fi
if [ $delta -le $MinAge ]; then
- debug_echo "skip remove by archive size: $file, delta=$delta < $MinAgeSec"
+ debug_echo "skip remove by archive size: $file, delta=$delta < $MinAge"
break
else
# delete oldest file
- debug_echo "remove by archive size: $file, delta=$delta >= $MinAgeSec (sec), size=$size >= $MaxSize"
+ debug_echo "remove by archive size: $file, delta=$delta >= $MinAge (sec), size=$size >= $MaxSize"
rm -f $file
fi
fi
fi
if [ -z "$RANDOM" ] ; then
# A fix for shells that do not have this bash feature.
- RANDOM=$(dd if=/dev/urandom count=1 2> /dev/null | cksum | cut -c"1-5")
+ RANDOM=$(( $(dd if=/dev/urandom bs=2 count=1 2> /dev/null | cksum | cut -d' ' -f1) % 32767 ))
fi
TIME=$(($RANDOM % $RandomSleep))
debug_echo "sleeping for $TIME seconds"
# 1 (false) System is not on main power
# 255 (false) Power status could not be determined
# Desktop systems always return 255 it seems
- if which on_ac_power >/dev/null; then
+ if which on_ac_power >/dev/null 2>&1; then
on_ac_power
POWER=$?
if [ $POWER -eq 1 ]; then
fi
fi
-# check apt-config exstance
-if ! which apt-config >/dev/null ; then
+# check apt-config existence
+if ! which apt-config >/dev/null 2>&1; then
exit 0
fi
check_power || exit 0
# check if we can lock the cache and if the cache is clean
-if which apt-get >/dev/null && ! eval apt-get check -f $XAPTOPT $XSTDERR ; then
+if which apt-get >/dev/null 2>&1 && ! eval apt-get check $XAPTOPT $XSTDERR ; then
debug_echo "error encountered in cron job with \"apt-get check\"."
exit 0
fi
now=$(date +%s)
# Support old Archive for compatibility.
-# Document only Periodic for all controling parameters of this script.
+# Document only Periodic for all controlling parameters of this script.
UpdateInterval=0
eval $(apt-config shell UpdateInterval APT::Periodic::Update-Package-Lists)
AutocleanInterval=0
eval $(apt-config shell AutocleanInterval APT::Periodic::AutocleanInterval)
+CleanInterval=0
+eval $(apt-config shell CleanInterval APT::Periodic::CleanInterval)
+
BackupArchiveInterval=0
eval $(apt-config shell BackupArchiveInterval APT::Periodic::BackupArchiveInterval)
[ $DownloadUpgradeableInterval -eq 0 ] &&
[ $UnattendedUpgradeInterval -eq 0 ] &&
[ $BackupArchiveInterval -eq 0 ] &&
- [ $AutocleanInterval -eq 0 ]; then
+ [ $AutocleanInterval -eq 0 ] &&
+ [ $CleanInterval -eq 0 ]; then
# check cache size
check_size_constraints
if check_stamp $UPDATE_STAMP $UpdateInterval; then
if eval apt-get $XAPTOPT -y update $XSTDERR; then
debug_echo "download updated metadata (success)."
- if which dbus-send >/dev/null && pidof dbus-daemon >/dev/null; then
+ if which dbus-send >/dev/null 2>&1 && pidof dbus-daemon >/dev/null 2>&1; then
if dbus-send --system / app.apt.dbus.updated boolean:true ; then
debug_echo "send dbus signal (success)"
else
# auto upgrade all upgradeable packages
UPGRADE_STAMP=/var/lib/apt/periodic/upgrade-stamp
-if which unattended-upgrade >/dev/null && check_stamp $UPGRADE_STAMP $UnattendedUpgradeInterval; then
+if which unattended-upgrade >/dev/null 2>&1 && check_stamp $UPGRADE_STAMP $UnattendedUpgradeInterval; then
if unattended-upgrade $XUUPOPT; then
update_stamp $UPGRADE_STAMP
debug_echo "unattended-upgrade (success)"
debug_echo "unattended-upgrade (not run)"
fi
+# clean package archive
+CLEAN_STAMP=/var/lib/apt/periodic/clean-stamp
+if check_stamp $CLEAN_STAMP $CleanInterval; then
+ if eval apt-get $XAPTOPT -y clean $XSTDERR; then
+ debug_echo "clean (success)."
+ update_stamp $CLEAN_STAMP
+ else
+ debug_echo "clean (error)"
+ fi
+else
+ debug_echo "clean (not run)"
+fi
+
# autoclean package archive
AUTOCLEAN_STAMP=/var/lib/apt/periodic/autoclean-stamp
if check_stamp $AUTOCLEAN_STAMP $AutocleanInterval; then
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