diff options
Diffstat (limited to 'debian/apt.cron.daily')
| -rw-r--r-- | debian/apt.cron.daily | 368 |
1 files changed, 286 insertions, 82 deletions
diff --git a/debian/apt.cron.daily b/debian/apt.cron.daily index b40bb2c30..4f47ccfab 100644 --- a/debian/apt.cron.daily +++ b/debian/apt.cron.daily @@ -1,40 +1,67 @@ #!/bin/sh -# - #set -e # # 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. # -# "APT::Periodic::Update-Package-Lists=1" -# - Do "apt-get update" automatically every n-days (0=disable) -# -# "APT::Periodic::Download-Upgradeable-Packages=0", -# - Do "apt-get upgrade --download-only" every n-days (0=disable) -# -# "APT::Periodic::AutocleanInterval" -# - Do "apt-get autoclean" every n-days (0=disable) +# Dir "/"; +# - RootDir for all configuration files # -# "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", +# Dir::Cache "var/apt/cache/"; +# - Set apt package cache directory +# +# Dir::Cache::Archive "archives/"; +# - Set package archive directory +# +# APT::Periodic::BackupArchiveInterval "0"; +# - Backup after n-days if archive contents changed.(0=disable) +# +# APT::Periodic::BackupLevel "3"; +# - Backup level.(0=disable), 1 is invalid. +# +# Dir::Cache::Backup "backup/"; +# - Set periodic package backup directory +# +# APT::Archives::MaxAge "0"; (old, deprecated) +# APT::Periodic::MaxAge "0"; (new) # - Set maximum allowed age of a cache package file. If a cache # package file is older it is deleted (0=disable) # -# "APT::Archives::MaxSize", +# 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 +# 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 # first). # -# "APT::Archives::MinAge" -# - Set minimum age of a package file. If a file is younger it -# will not be deleted (0=disable). Usefull to prevent races -# and to keep backups of the packages for emergency. +# APT::Periodic::Update-Package-Lists "0"; +# - Do "apt-get update" automatically every n-days (0=disable) +# +# APT::Periodic::Download-Upgradeable-Packages "0"; +# - Do "apt-get upgrade --download-only" every n-days (0=disable) # +# APT::Periodic::Unattended-Upgrade "0"; +# - 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::Periodic::AutocleanInterval "0"; +# - Do "apt-get autoclean" 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 check_stamp() { @@ -42,10 +69,14 @@ check_stamp() interval="$2" if [ $interval -eq 0 ]; then + debug_echo "check_stamp: interval=0" + # treat as no time has passed return 1 fi if [ ! -f $stamp ]; then + debug_echo "check_stamp: missing time stamp file: $stamp." + # treat as enough time has passed return 0 fi @@ -71,10 +102,9 @@ check_stamp() delta=$(($now-$stamp)) - # intervall is in days, + # intervall is in days, convert to sec. interval=$(($interval*60*60*24)) - #echo "stampfile: $1" - #echo "interval=$interval, now=$now, stamp=$stamp, delta=$delta" + debug_echo "check_stamp: interval=$interval, now=$now, stamp=$stamp, delta=$delta (sec)" # remove timestamps a day (or more) in the future and force re-check if [ $stamp -gt $(($now+86400)) ]; then @@ -93,27 +123,31 @@ check_stamp() update_stamp() { stamp="$1" - touch $stamp } - - # we check here if autoclean was enough sizewise check_size_constraints() { - # min-age in days MaxAge=0 - MinAge=2 - MaxSize=0 - CacheDir="var/cache/apt" - CacheArchive="archives/" eval $(apt-config shell MaxAge APT::Archives::MaxAge) + eval $(apt-config shell MaxAge APT::Periodic::MaxAge) + + MinAge=2 eval $(apt-config shell MinAge APT::Archives::MinAge) + eval $(apt-config shell MinAge APT::Periodic::MinAge) + + MaxSize=0 eval $(apt-config shell MaxSize APT::Archives::MaxSize) - eval $(apt-config shell Dir Dir) + 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%/} # sanity check if [ -z "$CacheDir" -o -z "$CacheArchive" ]; then @@ -125,9 +159,13 @@ check_size_constraints() # check age if [ ! $MaxAge -eq 0 ] && [ ! $MinAge -eq 0 ]; then + debug_echo "aged: ctime <$MaxAge and mtime <$MaxAge and ctime>$MinAge and mtime>$MinAge" find $Cache -name "*.deb" \( -mtime +$MaxAge -and -ctime +$MaxAge \) -and -not \( -mtime -$MinAge -or -ctime -$MinAge \) -print0 | xargs -r -0 rm -f elif [ ! $MaxAge -eq 0 ]; then + debug_echo "aged: ctime <$MaxAge and mtime <$MaxAge only" find $Cache -name "*.deb" -ctime +$MaxAge -and -mtime +$MaxAge -print0 | xargs -r -0 rm -f + else + debug_echo "skip aging since MaxAge is 0" fi # check size @@ -145,11 +183,12 @@ check_size_constraints() size=${du%%/*} # check if the cache is small enough if [ $size -lt $MaxSize ]; then + debug_echo "end remove by archive size: size=$size < $MaxSize" break fi # check for MinAge of the file - if [ ! $MinAge -eq 0 ]; then + if [ $MinAge -ne 0 ]; then # check both ctime and mtime mtime=$(stat -c %Y $file) ctime=$(stat -c %Z $file) @@ -158,19 +197,94 @@ check_size_constraints() else delta=$(($now-$ctime)) fi - #echo "$file ($delta), $MinAge" if [ $delta -le $MinAge ]; then - #echo "Skiping $file (delta=$delta)" + debug_echo "skip remove by archive size: $file, delta=$delta < $MinAgeSec" break + else + # delete oldest file + debug_echo "remove by archive size: $file, delta=$delta >= $MinAgeSec (sec), size=$size >= $MaxSize" + rm -f $file fi fi - - # delete oldest file - rm -f $file done fi } +# deal with the Apt::Periodic::BackupArchiveInterval +do_cache_backup() +{ + BackupArchiveInterval="$1" + if [ $BackupArchiveInterval -eq 0 ]; then + return + fi + + # Set default values and normalize + Dir="/" + eval $(apt-config shell Dir Dir) + Dir=${Dir%/} + + CacheDir="var/cache/apt/" + eval $(apt-config shell CacheDir Dir::Cache) + CacheDir=${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 + debug_echo "practically empty Dir::Cache::archives, exiting" + return 0 + fi + + BackupLevel=3 + eval $(apt-config shell BackupLevel APT::Periodic::BackupLevel) + if [ $BackupLevel -le 1 ]; then + BackupLevel=2 ; + fi + + CacheBackup="backup/" + eval $(apt-config shell CacheBackup Dir::Cache::Backup) + CacheBackup=${CacheBackup%/} + if [ -z "$CacheBackup" ]; then + echo "practically empty Dir::Cache::Backup, exiting" 1>&2 + return + fi + + Cache="${Dir}/${CacheDir}/${CacheArchive}/" + Back="${Dir}/${CacheDir}/${CacheBackup}/" + BackX="${Back}${CacheArchive}/" + for x in $(seq 0 1 $((${BackupLevel}-1))); do + eval "Back${x}=${Back}${x}/" + done + + # backup after n-days if archive contents changed. + # (This uses hardlink to save disk space) + BACKUP_ARCHIVE_STAMP=/var/lib/apt/periodic/backup-archive-stamp + if check_stamp $BACKUP_ARCHIVE_STAMP $BackupArchiveInterval; then + if [ $({(cd $Cache 2>/dev/null; find . -name "*.deb"); (cd $Back0 2>/dev/null;find . -name "*.deb") ;}| sort|uniq -u|wc -l) -ne 0 ]; then + mkdir -p $Back + rm -rf $Back$((${BackupLevel}-1)) + for y in $(seq $((${BackupLevel}-1)) -1 1); do + eval BackY=${Back}$y + eval BackZ=${Back}$(($y-1)) + if [ -e $BackZ ]; then + mv -f $BackZ $BackY ; + fi + done + cp -la $Cache $Back ; mv -f $BackX $Back0 + update_stamp $BACKUP_ARCHIVE_STAMP + debug_echo "backup with hardlinks. (success)" + else + debug_echo "skip backup since same content." + fi + else + debug_echo "skip backup since too new." + fi +} + # sleep for a random interval of time (default 30min) # (some code taken from cron-apt, thanks) random_sleep() @@ -185,86 +299,176 @@ random_sleep() RANDOM=$(dd if=/dev/urandom count=1 2> /dev/null | cksum | cut -c"1-5") fi TIME=$(($RANDOM % $RandomSleep)) + debug_echo "sleeping for $TIME seconds" sleep $TIME } -# main -if ! which apt-config >/dev/null; then +debug_echo() +{ + # Display message if $VERBOSE >= 1 + if [ "$VERBOSE" -ge 1 ]; then + echo $1 1>&2 + fi +} + +# ------------------------ main ---------------------------- + +# check apt-config exstance +if ! which apt-config >/dev/null ; then exit 0 fi +# Set VERBOSE mode from apt-config (or inherit from environment) +eval $(apt-config shell VERBOSE APT::Periodic::Verbose) +debug_echo "verbose level $VERBOSE" +if [ -z "$VERBOSE" ]; then + VERBOSE="0" +fi +if [ "$VERBOSE" -le 2 ]; then + # quiet for 0,1,2 + XSTDOUT=">/dev/null" + XSTDERR="2>/dev/null" + XAPTOPT="-qq" + XUUPOPT="" +else + XSTDOUT="" + XSTDERR="" + XAPTOPT="" + XUUPOPT="-d" +fi +if [ "$VERBOSE" -ge 3 ]; then + # trace output + 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 if we can lock the cache and if the cache is clean +if which apt-get >/dev/null && ! eval apt-get check -f $XAPTOPT $XSTDERR ; then + debug_echo "error encountered in cron job with \"apt-get check\"." + exit 0 +fi + +# Global current time in seconds since 1970-01-01 00:00:00 UTC +now=$(date +%s) + +# Support old Archive for compatibility. +# Document only Periodic for all controling parameters of this script. + UpdateInterval=0 +eval $(apt-config shell UpdateInterval APT::Periodic::Update-Package-Lists) + DownloadUpgradeableInterval=0 -eval $(apt-config shell UpdateInterval APT::Periodic::Update-Package-Lists DownloadUpgradeableInterval APT::Periodic::Download-Upgradeable-Packages) -AutocleanInterval=$DownloadUpgradeableInterval -eval $(apt-config shell AutocleanInterval APT::Periodic::AutocleanInterval) +eval $(apt-config shell DownloadUpgradeableInterval APT::Periodic::Download-Upgradeable-Packages) + UnattendedUpgradeInterval=0 eval $(apt-config shell UnattendedUpgradeInterval APT::Periodic::Unattended-Upgrade) +AutocleanInterval=0 +eval $(apt-config shell AutocleanInterval APT::Periodic::AutocleanInterval) + +BackupArchiveInterval=0 +eval $(apt-config shell BackupArchiveInterval APT::Periodic::BackupArchiveInterval) + # check if we actually have to do anything if [ $UpdateInterval -eq 0 ] && [ $DownloadUpgradeableInterval -eq 0 ] && [ $UnattendedUpgradeInterval -eq 0 ] && + [ $BackupArchiveInterval -eq 0 ] && [ $AutocleanInterval -eq 0 ]; then exit 0 fi -# laptop check, on_ac_power returns: -# 0 (true) System is on mains power -# 1 (false) System is not on mains 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 - if [ $? -eq 1 ]; then - exit 0 - fi -fi +# deal with BackupArchiveInterval +do_cache_backup $BackupArchiveInterval # sleep random amount of time to avoid hitting the # mirrors at the same time random_sleep -# check if we can access the cache -if ! apt-get check -q -q 2>/dev/null; then - # wait random amount of time before retrying - random_sleep - # check again - if ! apt-get check -q -q 2>/dev/null; then - echo "$0: could not lock the APT cache while performing daily cron job. " - echo "Is another package manager working?" - exit 1 - fi -fi - +# update package lists +UPDATED=0 UPDATE_STAMP=/var/lib/apt/periodic/update-stamp if check_stamp $UPDATE_STAMP $UpdateInterval; then - if apt-get -qq update 2>/dev/null; then - if which dbus-send >/dev/null && pidof dbus-daemon >/dev/null; then - dbus-send --system / app.apt.dbus.updated boolean:true - fi - update_stamp $UPDATE_STAMP + 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 dbus-send --system / app.apt.dbus.updated boolean:true ; then + debug_echo "send dbus signal (success)" + else + debug_echo "send dbus signal (error)" + fi + else + debug_echo "dbus signal not send (command not available)" + fi + update_stamp $UPDATE_STAMP + UPDATED=1 + else + debug_echo "download updated metadata (error)" fi +else + debug_echo "download updated metadata (not run)." 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 - apt-get -qq -d dist-upgrade 2>/dev/null - update_stamp $DOWNLOAD_UPGRADEABLE_STAMP +if [ $UPDATED -eq 1 ] && check_stamp $DOWNLOAD_UPGRADEABLE_STAMP $DownloadUpgradeableInterval; then + if eval apt-get $XAPTOPT -y -d dist-upgrade $XSTDERR; then + update_stamp $DOWNLOAD_UPGRADEABLE_STAMP + debug_echo "download upgradable (success)" + else + debug_echo "download upgradable (error)" + fi +else + debug_echo "download upgradable (not run)" fi +# auto upgrade all upgradeable packages UPGRADE_STAMP=/var/lib/apt/periodic/upgrade-stamp -if check_stamp $UPGRADE_STAMP $UnattendedUpgradeInterval; then - unattended-upgrade - update_stamp $UPGRADE_STAMP +if [ $UPDATED -eq 1 ] && which unattended-upgrade >/dev/null && check_stamp $UPGRADE_STAMP $UnattendedUpgradeInterval; then + if unattended-upgrade $XUUPOPT; then + update_stamp $UPGRADE_STAMP + debug_echo "unattended-upgrade (success)" + else + debug_echo "unattended-upgrade (error)" + fi +else + debug_echo "unattended-upgrade (not run)" fi +# autoclean package archive AUTOCLEAN_STAMP=/var/lib/apt/periodic/autoclean-stamp if check_stamp $AUTOCLEAN_STAMP $AutocleanInterval; then - apt-get -qq autoclean - update_stamp $AUTOCLEAN_STAMP + if eval apt-get $XAPTOPT -y autoclean $XSTDERR; then + debug_echo "autoclean (success)." + update_stamp $AUTOCLEAN_STAMP + else + debug_echo "autoclean (error)" + fi +else + debug_echo "autoclean (not run)" fi # check cache size check_size_constraints + +# +# vim: set sts=4 ai : +# + |