#
# 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
#
-# Dir::Cache "var/apt/cache/";
+# Dir::Cache "var/cache/apt/";
# - Set apt package cache directory
#
-# Dir::Cache::Archive "archives/";
+# Dir::Cache::Archives "archives/";
# - Set package archive directory
#
+# APT::Periodic::Enable "1";
+# - Enable the update/upgrade script (0=disable)
+#
# APT::Periodic::BackupArchiveInterval "0";
# - Backup after n-days if archive contents changed.(0=disable)
#
# 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::Download-Upgradeable-Packages "0";
# - Do "apt-get upgrade --download-only" every n-days (0=disable)
-#
+#
+# APT::Periodic::Download-Upgradeable-Packages-Debdelta "1";
+# - Use debdelta-upgrade to download updates if available (0=disable)
+#
# APT::Periodic::Unattended-Upgrade "0";
# - Run the "unattended-upgrade" security upgrade script
# every n-days (0=disabled)
# 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)"
eval $(apt-config shell MaxSize APT::Archives::MaxSize)
eval $(apt-config shell MaxSize APT::Periodic::MaxSize)
- CacheDir="var/cache/apt/"
- eval $(apt-config shell CacheDir Dir::Cache)
- CacheDir=${CacheDir%/}
-
- CacheArchive="archives/"
- eval $(apt-config shell CacheArchive Dir::Cache::archives)
- CacheArchive=${CacheArchive%/}
+ Cache="/var/cache/apt/archives/"
+ eval $(apt-config shell Cache Dir::Cache::archives/d)
# sanity check
- if [ -z "$CacheDir" -o -z "$CacheArchive" ]; then
- echo "empty Dir::Cache or Dir::Cache::archives, exiting"
+ if [ -z "$Cache" ]; then
+ echo "empty Dir::Cache::archives, exiting"
exit
fi
-
- Cache="${Dir%/}/${CacheDir%/}/${CacheArchive%/}/"
# check age
if [ ! $MaxAge -eq 0 ] && [ ! $MinAge -eq 0 ]; then
delta=$(($now-$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
# Set default values and normalize
- Dir="/"
- eval $(apt-config shell Dir Dir)
- Dir=${Dir%/}
-
- CacheDir="var/cache/apt/"
- eval $(apt-config shell CacheDir Dir::Cache)
+ CacheDir="/var/cache/apt"
+ eval $(apt-config shell CacheDir Dir::Cache/d)
CacheDir=${CacheDir%/}
if [ -z "$CacheDir" ]; then
debug_echo "practically empty Dir::Cache, exiting"
return 0
fi
- CacheArchive="archives/"
- eval $(apt-config shell CacheArchive Dir::Cache::Archives)
- CacheArchive=${CacheArchive%/}
- if [ -z "$CacheArchive" ]; then
+ Cache="${CacheDir}/archives/"
+ eval $(apt-config shell Cache Dir::Cache::Archives/d)
+ if [ -z "$Cache" ]; then
debug_echo "practically empty Dir::Cache::archives, exiting"
return 0
fi
BackupLevel=2 ;
fi
- CacheBackup="backup/"
- eval $(apt-config shell CacheBackup Dir::Cache::Backup)
- CacheBackup=${CacheBackup%/}
- if [ -z "$CacheBackup" ]; then
+ Back="${CacheDir}/backup/"
+ eval $(apt-config shell Back Dir::Cache::Backup/d)
+ if [ -z "$Back" ]; then
echo "practically empty Dir::Cache::Backup, exiting" 1>&2
return
fi
- Cache="${Dir}/${CacheDir}/${CacheArchive}/"
- Back="${Dir}/${CacheDir}/${CacheBackup}/"
+ CacheArchive="$(basename "${Cache}")"
+ test -n "${CacheArchive}" || CacheArchive="archives"
BackX="${Back}${CacheArchive}/"
for x in $(seq 0 1 $((${BackupLevel}-1))); do
eval "Back${x}=${Back}${x}/"
fi
if [ -z "$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 $TIME seconds"
fi
}
+check_power(){
+ # laptop check, on_ac_power returns:
+ # 0 (true) System is on main power
+ # 1 (false) System is not on main power
+ # 255 (false) Power status could not be determined
+ # Desktop systems always return 255 it seems
+ if which on_ac_power >/dev/null; then
+ on_ac_power
+ POWER=$?
+ if [ $POWER -eq 1 ]; then
+ debug_echo "exit: system NOT on main power"
+ return 1
+ elif [ $POWER -ne 0 ]; then
+ debug_echo "power status ($POWER) undetermined, continuing"
+ fi
+ debug_echo "system is on main power."
+ fi
+ return 0
+}
+
# ------------------------ main ----------------------------
-# check apt-config exstance
+if test -r /var/lib/apt/extended_states; then
+ # Backup the 7 last versions of APT's extended_states file
+ # shameless copy from dpkg cron
+ if cd /var/backups ; then
+ if ! cmp -s apt.extended_states.0 /var/lib/apt/extended_states; then
+ cp -p /var/lib/apt/extended_states apt.extended_states
+ savelog -c 7 apt.extended_states >/dev/null
+ fi
+ fi
+fi
+
+# check apt-config existence
if ! which apt-config >/dev/null ; then
exit 0
fi
+# check if the user really wants to do something
+AutoAptEnable=1 # default is yes
+eval $(apt-config shell AutoAptEnable APT::Periodic::Enable)
+
+if [ $AutoAptEnable -eq 0 ]; then
+ exit 0
+fi
+
# Set VERBOSE mode from apt-config (or inherit from environment)
+VERBOSE=0
eval $(apt-config shell VERBOSE APT::Periodic::Verbose)
debug_echo "verbose level $VERBOSE"
-if [ -z "$VERBOSE" ]; then
- VERBOSE="0"
-fi
if [ "$VERBOSE" -le 2 ]; then
# quiet for 0,1,2
XSTDOUT=">/dev/null"
set -x
fi
-# laptop check, on_ac_power returns:
-# 0 (true) System is on main power
-# 1 (false) System is not on main power
-# 255 (false) Power status could not be determined
-# Desktop systems always return 255 it seems
-if which on_ac_power >/dev/null; then
- on_ac_power
- POWER=$?
- if [ $POWER -eq 1 ]; then
- debug_echo "exit: system NOT on main power"
- exit 0
- elif [ $POWER -ne 0 ]; then
- debug_echo "power status ($POWER) undetermined, continuing"
- fi
- debug_echo "system is on main power."
-fi
+check_power || exit 0
# check if we can lock the cache and if the cache is clean
-if which apt-get >/dev/null && ! apt-get check $XAPTOPT $XSTDERR ; then
+if which apt-get >/dev/null && ! 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)
BackupArchiveInterval=0
eval $(apt-config shell BackupArchiveInterval APT::Periodic::BackupArchiveInterval)
-# check if we actually have to do anything
+Debdelta=1
+eval $(apt-config shell Debdelta APT::Periodic::Download-Upgradeable-Packages-Debdelta)
+
+# check if we actually have to do anything that requires locking the cache
if [ $UpdateInterval -eq 0 ] &&
[ $DownloadUpgradeableInterval -eq 0 ] &&
[ $UnattendedUpgradeInterval -eq 0 ] &&
[ $BackupArchiveInterval -eq 0 ] &&
[ $AutocleanInterval -eq 0 ]; then
+
+ # check cache size
+ check_size_constraints
+
exit 0
fi
# sleep random amount of time to avoid hitting the
# mirrors at the same time
random_sleep
+check_power || exit 0
+
+# include default system language so that "apt-get update" will
+# fetch the right translated package descriptions
+if [ -r /etc/default/locale ]; then
+ . /etc/default/locale
+ export LANG LANGUAGE LC_MESSAGES LC_ALL
+fi
# update package lists
+UPDATED=0
UPDATE_STAMP=/var/lib/apt/periodic/update-stamp
if check_stamp $UPDATE_STAMP $UpdateInterval; then
if eval apt-get $XAPTOPT -y update $XSTDERR; then
debug_echo "dbus signal not send (command not available)"
fi
update_stamp $UPDATE_STAMP
+ UPDATED=1
else
debug_echo "download updated metadata (error)"
fi
# download all upgradeable packages (if it is requested)
DOWNLOAD_UPGRADEABLE_STAMP=/var/lib/apt/periodic/download-upgradeable-stamp
-if check_stamp $DOWNLOAD_UPGRADEABLE_STAMP $DownloadUpgradeableInterval; then
+if [ $UPDATED -eq 1 ] && check_stamp $DOWNLOAD_UPGRADEABLE_STAMP $DownloadUpgradeableInterval; then
+ if [ $Debdelta -eq 1 ]; then
+ debdelta-upgrade >/dev/null 2>&1 || true
+ fi
if eval apt-get $XAPTOPT -y -d dist-upgrade $XSTDERR; then
update_stamp $DOWNLOAD_UPGRADEABLE_STAMP
debug_echo "download upgradable (success)"
debug_echo "autoclean (not run)"
fi
+# check cache size
+check_size_constraints
+
#
# vim: set sts=4 ai :
#
projects / apt.git / blobdiff