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

#!/bin/sh
#

#set -e
#
# This file understands the following apt configuration variables:
#
#  "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)
#
#  "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)
#
#  "APT::Archives::MaxSize",
#  - 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.
# 

check_stamp()
{
    stamp="$1"
    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

    # compare midnight today to midnight the day the stamp was updated
    stamp_file="$stamp"
    stamp=$(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
        # 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"
        return 0
    fi

    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
        # return 0.
        return 0
    fi

    delta=$(($now-$stamp))

    # intervall is in days,
    interval=$(($interval*60*60*24))
    #echo "stampfile: $1"
    #echo "interval=$interval, now=$now, stamp=$stamp, delta=$delta"

    # remove timestamps a day (or more) in the future and force re-check
    if [ $stamp -gt $(($now+86400)) ]; then
         echo "WARNING: file $stamp_file has a timestamp in the future: $stamp"
         rm -f "$stamp_file"
         return 0
    fi

    # remove timestamps a day (or more) in the future and force re-check
    if [ $stamp -gt $(($now+86400)) ]; then
         echo "WARNING: file $stamp_file has a timestamp in the future: $stamp"
         rm -f "$stamp_file"
         return 0
    fi

    if [ $delta -ge $interval ]; then
        return 0
    fi

    return 1
}

update_stamp()
{
    stamp="$1"

    touch $stamp
}

# we check here if autoclean was enough sizewise
check_size_constraints()
{
    MaxAge=0
    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 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
	echo "empty Dir::Cache or Dir::Cache::archives, exiting"
	exit
    fi
    
    Cache="${Dir%/}/${CacheDir%/}/${CacheArchive%/}/"

    # 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
    if [ ! $MaxSize -eq 0 ]; then
	# maxSize is in MB
	MaxSize=$(($MaxSize*1024))

	#get current time
	now=$(date --date=$(date --iso-8601) +%s)
	MinAge=$(($MinAge*24*60*60))

	# reverse-sort by mtime
	for file in $(ls -rt $Cache/*.deb 2>/dev/null); do 
	    du=$(du -s $Cache)
	    size=${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 [ $MinAge -ne 0 ]; then 
		# check both ctime and mtime 
		mtime=$(stat -c %Y $file)
		ctime=$(stat -c %Z $file)
		if [ $mtime -gt $ctime ]; then
		    delta=$(($now-$mtime))
		else
		    delta=$(($now-$ctime))
		fi
		if [ $delta -le $MinAge ]; then
		    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
	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()
{
    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))
    debug_echo "sleeping for $TIME seconds"
    sleep $TIME
}


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
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)
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 ] &&
   [ $AutocleanInterval -eq 0 ]; then
    exit 0
fi

# set the proxy based on the admin users gconf settings
admin_user=$(getent group admin|cut -d: -f4|cut -d, -f1)
if [ -n "$admin_user" ] && [ -x /usr/bin/sudo ] && [ -z "$http_proxy" ] && [ -x /usr/bin/gconftool ]; then
       use=$(sudo -u "$admin_user" gconftool --get /system/http_proxy/use_http_proxy 2>/dev/null)
       host=$(sudo -u "$admin_user" gconftool --get /system/http_proxy/host 2>/dev/null)
       port=$(sudo -u "$admin_user" gconftool --get /system/http_proxy/port 2>/dev/null)
       if [ "$use" = "true" ] && [ -n "$host" ] && [ -n "$port" ]; then
               export http_proxy="http://$host:$port/"
       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

# update package lists
UPDATED=0
UPDATE_STAMP=/var/lib/apt/periodic/update-stamp
if check_stamp $UPDATE_STAMP $UpdateInterval; then
    # check for a new archive signing key (against the master keyring)
    if eval apt-key net-update $XSTDERR; then
	debug_echo "apt-key net-update (success)"
    else
	debug_echo "apt-key net-update (failure)"
    fi
    if eval apt-get $XAPTOPT -y update -o APT::Update::Auth-Failure::="cp /usr/share/apt/apt-auth-failure.note /var/lib/update-notifier/user.d/" $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
	# now run apt-xapian-index if it is installed to ensure the index
	# is up-to-date
	if [ -x /usr/sbin/update-apt-xapian-index ]; then
	    ionice -c3 update-apt-xapian-index -q
	fi
    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 [ $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 [ $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
    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 :
#
Commit	Line	Data
0c132682 MZ	1	#!/bin/sh
0c132682 MZ	2	#
0c132682 MZ	3
0c132682 MZ	4	#set -e
8a139d4d MV	5	#
	6	# This file understands the following apt configuration variables:
	7	#
	8	# "APT::Periodic::Update-Package-Lists=1"
	9	# - Do "apt-get update" automatically every n-days (0=disable)
	10	#
	11	# "APT::Periodic::Download-Upgradeable-Packages=0",
	12	# - Do "apt-get upgrade --download-only" every n-days (0=disable)
	13	#
	14	# "APT::Periodic::AutocleanInterval"
	15	# - Do "apt-get autoclean" every n-days (0=disable)
	16	#
fdd15654 MV	17	# "APT::Periodic::Unattended-Upgrade"
	18	# - Run the "unattended-upgrade" security upgrade script
	19	# every n-days (0=disabled)
	20	# Requires the package "unattended-upgrades" and will write
	21	# a log in /var/log/unattended-upgrades
	22	#
8a139d4d MV	23	# "APT::Archives::MaxAge",
	24	# - Set maximum allowed age of a cache package file. If a cache
	25	# package file is older it is deleted (0=disable)
	26	#
	27	# "APT::Archives::MaxSize",
	28	# - Set maximum size of the cache in MB (0=disable). If the cache
	29	# is bigger, cached package files are deleted until the size
	30	# requirement is met (the biggest packages will be deleted
	31	# first).
	32	#
	33	# "APT::Archives::MinAge"
	34	# - Set minimum age of a package file. If a file is younger it
	35	# will not be deleted (0=disable). Usefull to prevent races
	36	# and to keep backups of the packages for emergency.
	37	#
0c132682	38
05f6a46a	39	check_stamp()
0c132682	40	{
05f6a46a MZ	41	stamp="$1"
	42	interval="$2"
	43
10946ddc	44	if [ $interval -eq 0 ]; then
53391d0f	45	debug_echo "check_stamp: interval=0"
ff7c76f8	46	# treat as no time has passed
10946ddc MZ	47	return 1
	48	fi
	49
05f6a46a	50	if [ ! -f $stamp ]; then
ff7c76f8 OA	51	debug_echo "check_stamp: missing time stamp file: $stamp."
ff7c76f8 OA	52	# treat as enough time has passed
05f6a46a	53	return 0
0c132682	54	fi
05f6a46a MZ	55
05f6a46a MZ	56	# compare midnight today to midnight the day the stamp was updated
9c2d35fa MV	57	stamp_file="$stamp"
	58	stamp=$(date --date=$(date -r $stamp_file --iso-8601) +%s 2>/dev/null)
	59	if [ "$?" != "0" ]; then
	60	# Due to some timezones returning 'invalid date' for midnight on
	61	# certain dates (eg America/Sao_Paulo), if date returns with error
	62	# remove the stamp file and return 0. See coreutils bug:
	63	# http://lists.gnu.org/archive/html/bug-coreutils/2007-09/msg00176.html
	64	rm -f "$stamp_file"
	65	return 0
	66	fi
	67
	68	now=$(date --date=$(date --iso-8601) +%s 2>/dev/null)
	69	if [ "$?" != "0" ]; then
	70	# As above, due to some timezones returning 'invalid date' for midnight
	71	# on certain dates (eg America/Sao_Paulo), if date returns with error
	72	# return 0.
	73	return 0
	74	fi
	75
05f6a46a	76	delta=$(($now-$stamp))
05f6a46a	77
8a139d4d MV	78	# intervall is in days,
	79	interval=$(($interval6060*24))
	80	#echo "stampfile: $1"
	81	#echo "interval=$interval, now=$now, stamp=$stamp, delta=$delta"
	82
adbce121 MV	83	# remove timestamps a day (or more) in the future and force re-check
	84	if [ $stamp -gt $(($now+86400)) ]; then
	85	echo "WARNING: file $stamp_file has a timestamp in the future: $stamp"
	86	rm -f "$stamp_file"
	87	return 0
	88	fi
	89
6e7c6c3f MV	90	# remove timestamps a day (or more) in the future and force re-check
	91	if [ $stamp -gt $(($now+86400)) ]; then
	92	echo "WARNING: file $stamp_file has a timestamp in the future: $stamp"
	93	rm -f "$stamp_file"
	94	return 0
	95	fi
	96
05f6a46a MZ	97	if [ $delta -ge $interval ]; then
	98	return 0
	99	fi
	100
	101	return 1
	102	}
	103
	104	update_stamp()
	105	{
	106	stamp="$1"
	107
	108	touch $stamp
0c132682 MZ	109	}
0c132682 MZ	110
6cce801a	111	# we check here if autoclean was enough sizewise
2e8a92e5	112	check_size_constraints()
6cce801a	113	{
6cce801a	114	MaxAge=0
6cce801a	115	eval $(apt-config shell MaxAge APT::Archives::MaxAge)
c98870b0 MV	116	eval $(apt-config shell MaxAge APT::Periodic::MaxAge)
	117
	118	MinAge=2
8a139d4d	119	eval $(apt-config shell MinAge APT::Archives::MinAge)
c98870b0 MV	120	eval $(apt-config shell MinAge APT::Periodic::MinAge)
	121
	122	MaxSize=0
6cce801a	123	eval $(apt-config shell MaxSize APT::Archives::MaxSize)
c98870b0 MV	124	eval $(apt-config shell MaxSize APT::Periodic::MaxSize)
	125
	126	CacheDir="var/cache/apt/"
6cce801a	127	eval $(apt-config shell CacheDir Dir::Cache)
c98870b0 MV	128	CacheDir=${CacheDir%/}
	129
	130	CacheArchive="archives/"
6cce801a	131	eval $(apt-config shell CacheArchive Dir::Cache::archives)
c98870b0	132	CacheArchive=${CacheArchive%/}
6cce801a MV	133
	134	# sanity check
	135	if [ -z "$CacheDir" -o -z "$CacheArchive" ]; then
	136	echo "empty Dir::Cache or Dir::Cache::archives, exiting"
	137	exit
	138	fi
01717245 MV	139
01717245 MV	140	Cache="${Dir%/}/${CacheDir%/}/${CacheArchive%/}/"
6cce801a MV	141
6cce801a MV	142	# check age
8a139d4d	143	if [ ! $MaxAge -eq 0 ] && [ ! $MinAge -eq 0 ]; then
c98870b0	144	debug_echo "aged: ctime <$MaxAge and mtime <$MaxAge and ctime>$MinAge and mtime>$MinAge"
8e29e348	145	find $Cache -name "*.deb" \( -mtime +$MaxAge -and -ctime +$MaxAge \) -and -not \( -mtime -$MinAge -or -ctime -$MinAge \) -print0 \| xargs -r -0 rm -f
8a139d4d	146	elif [ ! $MaxAge -eq 0 ]; then
c98870b0	147	debug_echo "aged: ctime <$MaxAge and mtime <$MaxAge only"
8e29e348	148	find $Cache -name "*.deb" -ctime +$MaxAge -and -mtime +$MaxAge -print0 \| xargs -r -0 rm -f
c98870b0 MV	149	else
c98870b0 MV	150	debug_echo "skip aging since MaxAge is 0"
6cce801a MV	151	fi
	152
	153	# check size
	154	if [ ! $MaxSize -eq 0 ]; then
8a139d4d MV	155	# maxSize is in MB
	156	MaxSize=$(($MaxSize*1024))
	157
	158	#get current time
	159	now=$(date --date=$(date --iso-8601) +%s)
	160	MinAge=$(($MinAge2460*60))
	161
6cce801a	162	# reverse-sort by mtime
3408b58c	163	for file in $(ls -rt $Cache/*.deb 2>/dev/null); do
6cce801a MV	164	du=$(du -s $Cache)
	165	size=${du%%/*}
	166	# check if the cache is small enough
	167	if [ $size -lt $MaxSize ]; then
c98870b0	168	debug_echo "end remove by archive size: size=$size < $MaxSize"
6cce801a MV	169	break
6cce801a MV	170	fi
8a139d4d MV	171
8a139d4d MV	172	# check for MinAge of the file
c98870b0	173	if [ $MinAge -ne 0 ]; then
8e29e348	174	# check both ctime and mtime
3971f8e8	175	mtime=$(stat -c %Y $file)
8e29e348 MV	176	ctime=$(stat -c %Z $file)
	177	if [ $mtime -gt $ctime ]; then
	178	delta=$(($now-$mtime))
	179	else
	180	delta=$(($now-$ctime))
	181	fi
8a139d4d	182	if [ $delta -le $MinAge ]; then
c98870b0	183	debug_echo "skip remove by archive size: $file, delta=$delta < $MinAgeSec"
3408b58c	184	break
c98870b0 MV	185	else
	186	# delete oldest file
	187	debug_echo "remove by archive size: $file, delta=$delta >= $MinAgeSec (sec), size=$size >= $MaxSize"
	188	rm -f $file
8a139d4d MV	189	fi
8a139d4d MV	190	fi
6cce801a MV	191	done
	192	fi
	193	}
	194
c98870b0 MV	195	# deal with the Apt::Periodic::BackupArchiveInterval
	196	do_cache_backup()
	197	{
	198	BackupArchiveInterval="$1"
	199	if [ $BackupArchiveInterval -eq 0 ]; then
	200	return
	201	fi
	202
	203	# Set default values and normalize
	204	Dir="/"
	205	eval $(apt-config shell Dir Dir)
	206	Dir=${Dir%/}
	207
	208	CacheDir="var/cache/apt/"
	209	eval $(apt-config shell CacheDir Dir::Cache)
	210	CacheDir=${CacheDir%/}
	211	if [ -z "$CacheDir" ]; then
	212	debug_echo "practically empty Dir::Cache, exiting"
	213	return 0
	214	fi
	215
	216	CacheArchive="archives/"
	217	eval $(apt-config shell CacheArchive Dir::Cache::Archives)
	218	CacheArchive=${CacheArchive%/}
	219	if [ -z "$CacheArchive" ]; then
	220	debug_echo "practically empty Dir::Cache::archives, exiting"
	221	return 0
	222	fi
	223
	224	BackupLevel=3
	225	eval $(apt-config shell BackupLevel APT::Periodic::BackupLevel)
	226	if [ $BackupLevel -le 1 ]; then
	227	BackupLevel=2 ;
	228	fi
	229
	230	CacheBackup="backup/"
	231	eval $(apt-config shell CacheBackup Dir::Cache::Backup)
	232	CacheBackup=${CacheBackup%/}
	233	if [ -z "$CacheBackup" ]; then
	234	echo "practically empty Dir::Cache::Backup, exiting" 1>&2
	235	return
	236	fi
	237
	238	Cache="${Dir}/${CacheDir}/${CacheArchive}/"
	239	Back="${Dir}/${CacheDir}/${CacheBackup}/"
	240	BackX="${Back}${CacheArchive}/"
	241	for x in $(seq 0 1 $((${BackupLevel}-1))); do
	242	eval "Back${x}=${Back}${x}/"
	243	done
	244
	245	# backup after n-days if archive contents changed.
	246	# (This uses hardlink to save disk space)
	247	BACKUP_ARCHIVE_STAMP=/var/lib/apt/periodic/backup-archive-stamp
	248	if check_stamp $BACKUP_ARCHIVE_STAMP $BackupArchiveInterval; then
	249	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
	250	mkdir -p $Back
	251	rm -rf $Back$((${BackupLevel}-1))
	252	for y in $(seq $((${BackupLevel}-1)) -1 1); do
	253	eval BackY=${Back}$y
	254	eval BackZ=${Back}$(($y-1))
	255	if [ -e $BackZ ]; then
	256	mv -f $BackZ $BackY ;
	257	fi
	258	done
259	cp -la $Cache $Back ; mv -f $BackX $Back0
260	update_stamp $BACKUP_ARCHIVE_STAMP
261	debug_echo "backup with hardlinks. (success)"
262	else
263	debug_echo "skip backup since same content."
264	fi
265	else
266	debug_echo "skip backup since too new."
267	fi
268	}
269
d047c6da	270	# sleep for a random interval of time (default 30min)
604c9ee8 MV	271	# (some code taken from cron-apt, thanks)
	272	random_sleep()
	273	{
	274	RandomSleep=1800
	275	eval $(apt-config shell RandomSleep APT::Periodic::RandomSleep)
	276	if [ $RandomSleep -eq 0 ]; then
	277	return
	278	fi
	279	if [ -z "$RANDOM" ] ; then
	280	# A fix for shells that do not have this bash feature.
	281	RANDOM=$(dd if=/dev/urandom count=1 2> /dev/null \| cksum \| cut -c"1-5")
	282	fi
	283	TIME=$(($RANDOM % $RandomSleep))
c98870b0	284	debug_echo "sleeping for $TIME seconds"
604c9ee8 MV	285	sleep $TIME
	286	}
	287
604c9ee8	288
ff7c76f8	289	debug_echo()
6cce801a	290	{
ff7c76f8 OA	291	# Display message if $VERBOSE >= 1
	292	if [ "$VERBOSE" -ge 1 ]; then
	293	echo $1 1>&2
6cce801a	294	fi
ff7c76f8 OA	295	}
ff7c76f8 OA	296
c98870b0	297	# ------------------------ main ----------------------------
69c28efc	298
ff7c76f8 OA	299	# check apt-config exstance
ff7c76f8 OA	300	if ! which apt-config >/dev/null ; then
18d38975 OS	301	exit 0
18d38975 OS	302	fi
87ddfb96	303
ff7c76f8 OA	304	# Set VERBOSE mode from apt-config (or inherit from environment)
ff7c76f8 OA	305	eval $(apt-config shell VERBOSE APT::Periodic::Verbose)
c98870b0	306	debug_echo "verbose level $VERBOSE"
ff7c76f8 OA	307	if [ -z "$VERBOSE" ]; then
	308	VERBOSE="0"
	309	fi
	310	if [ "$VERBOSE" -le 2 ]; then
	311	# quiet for 0,1,2
	312	XSTDOUT=">/dev/null"
	313	XSTDERR="2>/dev/null"
	314	XAPTOPT="-qq"
	315	XUUPOPT=""
	316	else
	317	XSTDOUT=""
	318	XSTDERR=""
	319	XAPTOPT=""
	320	XUUPOPT="-d"
	321	fi
	322	if [ "$VERBOSE" -ge 3 ]; then
	323	# trace output
	324	set -x
	325	fi
8a139d4d	326
ff7c76f8 OA	327	# laptop check, on_ac_power returns:
	328	# 0 (true) System is on main power
	329	# 1 (false) System is not on main power
	330	# 255 (false) Power status could not be determined
	331	# Desktop systems always return 255 it seems
	332	if which on_ac_power >/dev/null; then
	333	on_ac_power
	334	POWER=$?
	335	if [ $POWER -eq 1 ]; then
c98870b0	336	debug_echo "exit: system NOT on main power"
18d38975	337	exit 0
ff7c76f8	338	elif [ $POWER -ne 0 ]; then
c98870b0	339	debug_echo "power status ($POWER) undetermined, continuing"
6cce801a	340	fi
ff7c76f8 OA	341	debug_echo "system is on main power."
ff7c76f8 OA	342	fi
8a139d4d	343
ff7c76f8	344	# check if we can lock the cache and if the cache is clean
aff278bf	345	if which apt-get >/dev/null && ! eval apt-get check -f $XAPTOPT $XSTDERR ; then
ff7c76f8 OA	346	debug_echo "error encountered in cron job with \"apt-get check\"."
ff7c76f8 OA	347	exit 0
18d38975	348	fi
87ddfb96	349
ff7c76f8 OA	350	# Global current time in seconds since 1970-01-01 00:00:00 UTC
ff7c76f8 OA	351	now=$(date +%s)
6cce801a	352
ff7c76f8 OA	353	# Support old Archive for compatibility.
ff7c76f8 OA	354	# Document only Periodic for all controling parameters of this script.
ff7c76f8	355
0c132682	356	UpdateInterval=0
05f6a46a	357	DownloadUpgradeableInterval=0
9bd1cf87 MZ	358	eval $(apt-config shell UpdateInterval APT::Periodic::Update-Package-Lists DownloadUpgradeableInterval APT::Periodic::Download-Upgradeable-Packages)
9bd1cf87 MZ	359	AutocleanInterval=$DownloadUpgradeableInterval
0eb7056b	360	eval $(apt-config shell AutocleanInterval APT::Periodic::AutocleanInterval)
fdd15654 MV	361	UnattendedUpgradeInterval=0
	362	eval $(apt-config shell UnattendedUpgradeInterval APT::Periodic::Unattended-Upgrade)
	363
ff7c76f8 OA	364	AutocleanInterval=0
	365	eval $(apt-config shell AutocleanInterval APT::Periodic::AutocleanInterval)
	366
c98870b0 MV	367	BackupArchiveInterval=0
c98870b0 MV	368	eval $(apt-config shell BackupArchiveInterval APT::Periodic::BackupArchiveInterval)
ff7c76f8	369
5f71505b MV	370	# check if we actually have to do anything
	371	if [ $UpdateInterval -eq 0 ] &&
	372	[ $DownloadUpgradeableInterval -eq 0 ] &&
	373	[ $UnattendedUpgradeInterval -eq 0 ] &&
	374	[ $AutocleanInterval -eq 0 ]; then
	375	exit 0
	376	fi
fdd15654	377
55fb35e8 MV	378	# set the proxy based on the admin users gconf settings
	379	admin_user=$(getent group admin\|cut -d: -f4\|cut -d, -f1)
	380	if [ -n "$admin_user" ] && [ -x /usr/bin/sudo ] && [ -z "$http_proxy" ] && [ -x /usr/bin/gconftool ]; then
	381	use=$(sudo -u "$admin_user" gconftool --get /system/http_proxy/use_http_proxy 2>/dev/null)
	382	host=$(sudo -u "$admin_user" gconftool --get /system/http_proxy/host 2>/dev/null)
	383	port=$(sudo -u "$admin_user" gconftool --get /system/http_proxy/port 2>/dev/null)
	384	if [ "$use" = "true" ] && [ -n "$host" ] && [ -n "$port" ]; then
	385	export http_proxy="http://$host:$port/"
	386	fi
0c132682 MZ	387	fi
0c132682 MZ	388
55fb35e8	389
c98870b0 MV	390	# deal with BackupArchiveInterval
c98870b0 MV	391	do_cache_backup $BackupArchiveInterval
0c132682	392
5f71505b MV	393	# sleep random amount of time to avoid hitting the
5f71505b MV	394	# mirrors at the same time
69c28efc MV	395	random_sleep
69c28efc MV	396
ff7c76f8	397	# update package lists
aff278bf	398	UPDATED=0
05f6a46a MZ	399	UPDATE_STAMP=/var/lib/apt/periodic/update-stamp
05f6a46a MZ	400	if check_stamp $UPDATE_STAMP $UpdateInterval; then
2ce23a2a	401	# check for a new archive signing key (against the master keyring)
55fb35e8 MV	402	if eval apt-key net-update $XSTDERR; then
	403	debug_echo "apt-key net-update (success)"
	404	else
	405	debug_echo "apt-key net-update (failure)"
	406	fi
	407	if eval apt-get $XAPTOPT -y update -o APT::Update::Auth-Failure::="cp /usr/share/apt/apt-auth-failure.note /var/lib/update-notifier/user.d/" $XSTDERR; then
ff7c76f8	408	debug_echo "download updated metadata (success)."
be993931	409	if which dbus-send >/dev/null && pidof dbus-daemon >/dev/null; then
ff7c76f8 OA	410	if dbus-send --system / app.apt.dbus.updated boolean:true ; then
	411	debug_echo "send dbus signal (success)"
	412	else
	413	debug_echo "send dbus signal (error)"
	414	fi
	415	else
	416	debug_echo "dbus signal not send (command not available)"
05f6a46a	417	fi
ff7c76f8	418	update_stamp $UPDATE_STAMP
aff278bf	419	UPDATED=1
c2d0fdd1 MV	420	# now run apt-xapian-index if it is installed to ensure the index
	421	# is up-to-date
	422	if [ -x /usr/sbin/update-apt-xapian-index ]; then
	423	ionice -c3 update-apt-xapian-index -q
	424	fi
ff7c76f8	425	else
c98870b0	426	debug_echo "download updated metadata (error)"
05f6a46a	427	fi
ff7c76f8 OA	428	else
ff7c76f8 OA	429	debug_echo "download updated metadata (not run)."
0c132682	430	fi
c98870b0 MV	431
c98870b0 MV	432	# download all upgradeable packages (if it is requested)
05f6a46a	433	DOWNLOAD_UPGRADEABLE_STAMP=/var/lib/apt/periodic/download-upgradeable-stamp
aff278bf	434	if [ $UPDATED -eq 1 ] && check_stamp $DOWNLOAD_UPGRADEABLE_STAMP $DownloadUpgradeableInterval; then
c98870b0 MV	435	if eval apt-get $XAPTOPT -y -d dist-upgrade $XSTDERR; then
	436	update_stamp $DOWNLOAD_UPGRADEABLE_STAMP
	437	debug_echo "download upgradable (success)"
	438	else
	439	debug_echo "download upgradable (error)"
	440	fi
	441	else
	442	debug_echo "download upgradable (not run)"
0c132682	443	fi
9bd1cf87	444
c98870b0	445	# auto upgrade all upgradeable packages
fdd15654	446	UPGRADE_STAMP=/var/lib/apt/periodic/upgrade-stamp
aff278bf	447	if [ $UPDATED -eq 1 ] && which unattended-upgrade >/dev/null && check_stamp $UPGRADE_STAMP $UnattendedUpgradeInterval; then
c98870b0 MV	448	if unattended-upgrade $XUUPOPT; then
	449	update_stamp $UPGRADE_STAMP
	450	debug_echo "unattended-upgrade (success)"
	451	else
	452	debug_echo "unattended-upgrade (error)"
	453	fi
	454	else
	455	debug_echo "unattended-upgrade (not run)"
fdd15654 MV	456	fi
fdd15654 MV	457
ff7c76f8	458	# autoclean package archive
de15fbae MV	459	AUTOCLEAN_STAMP=/var/lib/apt/periodic/autoclean-stamp
de15fbae MV	460	if check_stamp $AUTOCLEAN_STAMP $AutocleanInterval; then
c98870b0	461	if eval apt-get $XAPTOPT -y autoclean $XSTDERR; then
ff7c76f8 OA	462	debug_echo "autoclean (success)."
	463	update_stamp $AUTOCLEAN_STAMP
	464	else
c98870b0	465	debug_echo "autoclean (error)"
ff7c76f8 OA	466	fi
ff7c76f8 OA	467	else
c98870b0	468	debug_echo "autoclean (not run)"
de15fbae MV	469	fi
de15fbae MV	470
47536509 MV	471	# check cache size
47536509 MV	472	check_size_constraints
0fad7309	473
ff7c76f8 OA	474	#
	475	# vim: set sts=4 ai :
	476	#
	477