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

#!/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.
#
#  Dir "/";
#  - RootDir for all configuration files
#
#  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::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::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()
{
    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
    	update_stamp $stamp
	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=$(date -r $stamp '+%s')
    delta=$(($now-$stamp))

    # intervall is in days, convert to sec.
    interval=$(($interval*60*60*24))
    debug_echo "check_stamp: interval=$interval, now=$now, stamp=$stamp, delta=$delta (sec)"

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

    return 1
}

update_stamp()
{
    stamp="$1"
    touch $stamp
}

debug_echo()
{
    # Display message if $VERBOSE >= 1
    if [ "$VERBOSE" -ge 1 ]; then
	echo $1 1>&2
    fi
}

# 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 $(apt-config shell VERBOSE APT::Periodic::Verbose)
if [ -z "$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 on main power."
	exit 0
    elif [ $POWER -ne 0 ]; then
	debug_echo "exit: power status ($POWER) undetermined."
	exit 0
    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 $XAPTOPT $XSTDERR ; then
    debug_echo "error encountered in cron job with \"apt-get check\"."
    exit 0
fi
# No need to check for apt-get below

# Global current time in seconds since 1970-01-01 00:00:00 UTC
now=$(date +%s)

# 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"
    exit 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"
    exit 0
fi

BackupArchiveInterval=0
eval $(apt-config shell BackupArchiveInterval APT::Periodic::BackupArchiveInterval)

BackupArchiveLevel=3
eval $(apt-config shell BackupArchiveLevel APT::Periodic::BackupArchiveLevel)
if [ $BackupArchiveLevel -le 1 ]; then BackupArchiveLevel=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
    exit 0
fi

# Support old Archive for compatibility.
# Document only Periodic for all controling parameters of this script.
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)

UpdateInterval=0
eval $(apt-config shell UpdateInterval APT::Periodic::Update-Package-Lists)

DownloadUpgradeableInterval=0
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)

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

# package archive contnts removal by package age
if [ $MaxAge -ne 0 ] && [ $MinAge -ne 0 ]; then
    find $Cache -name "*.deb"  \( -mtime +$MaxAge -and -ctime +$MaxAge \) -and -not \( -mtime -$MinAge -or -ctime -$MinAge \) -print0 | xargs -r -0 rm -f
    debug_echo "aged: ctime <$MaxAge and mtime <$MaxAge and ctime>$MinAge and mtime>$MinAge"
elif [ $MaxAge -ne 0 ]; then
    find $Cache -name "*.deb"  -ctime +$MaxAge -and -mtime +$MaxAge -print0 | xargs -r -0 rm -f
    debug_echo "aged: ctime <$MaxAge and mtime <$MaxAge only"
else
    debug_echo "skip aging since MaxAge is 0"
fi
    
# package archive contnts removal down to $MaxSize
if [ $MaxSize -ne 0 ]; then

    MinAgeSec=$(($MinAge*24*60*60))

    # reverse-sort by mtime
    for file in $(ls -rt $Cache/*.deb 2>/dev/null); do 
	du=$(du -m -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 in second of the file
	if [ $MinAgeSec -ne 0 ]; then 
	    # check both ctime and mtime 
	    mtime=$(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 $MinAgeSec ]; then
		debug_echo "skip remove by archive size:  $file, delta=$delta < $MinAgeSec"
	    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

# update package lists
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 "download updated metadata (success)."
	if which dbus-send >/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
	# 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 eval apt-get $XAPTOPT -y -d dist-upgrade $XSTDERR; then
		update_stamp $DOWNLOAD_UPGRADEABLE_STAMP
		debug_echo "download upgradable (success)."
		# 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 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
	    else
		debug_echo "download upgradable (error)."
	    fi
	else
	    debug_echo "download upgradable (not run)."
	fi
    else
	debug_echo "download updated metadata (error)."
    fi
else
    debug_echo "download updated metadata (not run)."
fi

# autoclean package archive
AUTOCLEAN_STAMP=/var/lib/apt/periodic/autoclean-stamp
if check_stamp $AUTOCLEAN_STAMP $AutocleanInterval; then
    if 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

#
#     vim: set sts=4 ai :
#
Commit	Line	Data
0c132682	1	#!/bin/sh
0c132682	2	#set -e
8a139d4d MV	3	#
8a139d4d MV	4	# This file understands the following apt configuration variables:
ff7c76f8 OA	5	# Values here are the default.
ff7c76f8 OA	6	# Create /etc/apt/apt.conf.d/02periodic file to set your preference.
8a139d4d	7	#
ff7c76f8 OA	8	# Dir "/";
ff7c76f8 OA	9	# - RootDir for all configuration files
8a139d4d	10	#
ff7c76f8 OA	11	# Dir::Cache "var/apt/cache/";
	12	# - Set apt package cache directory
	13	#
	14	# Dir::Cache::Archive "archives/";
	15	# - Set package archive directory
	16	#
	17	# APT::Periodic::BackupArchiveInterval "0";
	18	# - Backup after n-days if archive contents changed.(0=disable)
	19	#
	20	# APT::Periodic::BackupLevel "3";
	21	# - Backup level.(0=disable), 1 is invalid.
	22	#
	23	# Dir::Cache::Backup "backup/";
	24	# - Set periodic package backup directory
	25	#
	26	# APT::Archives::MaxAge "0"; (old, deprecated)
	27	# APT::Periodic::MaxAge "0"; (new)
8a139d4d MV	28	# - Set maximum allowed age of a cache package file. If a cache
	29	# package file is older it is deleted (0=disable)
	30	#
ff7c76f8 OA	31	# APT::Archives::MinAge "2"; (old, deprecated)
	32	# APT::Periodic::MinAge "2"; (new)
	33	# - Set minimum age of a package file. If a file is younger it
	34	# will not be deleted (0=disable). Usefull to prevent races
	35	# and to keep backups of the packages for emergency.
	36	#
	37	# APT::Archives::MaxSize "0"; (old, deprecated)
	38	# APT::Periodic::MaxSize "0"; (new)
8a139d4d MV	39	# - Set maximum size of the cache in MB (0=disable). If the cache
	40	# is bigger, cached package files are deleted until the size
	41	# requirement is met (the biggest packages will be deleted
	42	# first).
	43	#
ff7c76f8 OA	44	# APT::Periodic::Update-Package-Lists "0";
	45	# - Do "apt-get update" automatically every n-days (0=disable)
	46	#
	47	# APT::Periodic::Download-Upgradeable-Packages "0";
	48	# - Do "apt-get upgrade --download-only" every n-days (0=disable)
	49	#
	50	# APT::Periodic::Unattended-Upgrade "0";
	51	# - Run the "unattended-upgrade" security upgrade script
	52	# every n-days (0=disabled)
	53	# Requires the package "unattended-upgrades" and will write
	54	# a log in /var/log/unattended-upgrades
8a139d4d	55	#
ff7c76f8 OA	56	# APT::Periodic::AutocleanInterval "0";
	57	# - Do "apt-get autoclean" every n-days (0=disable)
	58	#
	59	# APT::Periodic::Verbose "0";
	60	# - Send report mail to root
	61	# 0: no report (or null string)
	62	# 1: progress report (actually any string)
	63	# 2: + command outputs (remove -qq, remove 2>/dev/null, add -d)
	64	# 3: + trace on
0c132682	65
05f6a46a	66	check_stamp()
0c132682	67	{
05f6a46a MZ	68	stamp="$1"
	69	interval="$2"
	70
10946ddc	71	if [ $interval -eq 0 ]; then
ff7c76f8 OA	72	debug_echo "check_stamp: interval=0."
ff7c76f8 OA	73	# treat as no time has passed
10946ddc MZ	74	return 1
	75	fi
	76
05f6a46a	77	if [ ! -f $stamp ]; then
ff7c76f8 OA	78	update_stamp $stamp
	79	debug_echo "check_stamp: missing time stamp file: $stamp."
	80	# treat as enough time has passed
05f6a46a	81	return 0
0c132682	82	fi
05f6a46a MZ	83
05f6a46a MZ	84	# compare midnight today to midnight the day the stamp was updated
ff7c76f8	85	stamp=$(date -r $stamp '+%s')
05f6a46a	86	delta=$(($now-$stamp))
05f6a46a	87
ff7c76f8	88	# intervall is in days, convert to sec.
8a139d4d	89	interval=$(($interval6060*24))
ff7c76f8	90	debug_echo "check_stamp: interval=$interval, now=$now, stamp=$stamp, delta=$delta (sec)"
8a139d4d	91
05f6a46a MZ	92	if [ $delta -ge $interval ]; then
	93	return 0
	94	fi
	95
	96	return 1
	97	}
	98
	99	update_stamp()
	100	{
	101	stamp="$1"
05f6a46a	102	touch $stamp
0c132682 MZ	103	}
0c132682 MZ	104
ff7c76f8	105	debug_echo()
6cce801a	106	{
ff7c76f8 OA	107	# Display message if $VERBOSE >= 1
	108	if [ "$VERBOSE" -ge 1 ]; then
	109	echo $1 1>&2
6cce801a	110	fi
ff7c76f8 OA	111	}
	112
	113	# check apt-config exstance
	114	if ! which apt-config >/dev/null ; then
	115	exit 0
	116	fi
6cce801a	117
ff7c76f8 OA	118	# Set VERBOSE mode from apt-config (or inherit from environment)
	119	eval $(apt-config shell VERBOSE APT::Periodic::Verbose)
	120	if [ -z "$VERBOSE" ]; then
	121	VERBOSE="0"
	122	fi
	123	if [ "$VERBOSE" -le 2 ]; then
	124	# quiet for 0,1,2
	125	XSTDOUT=">/dev/null"
	126	XSTDERR="2>/dev/null"
	127	XAPTOPT="-qq"
	128	XUUPOPT=""
	129	else
	130	XSTDOUT=""
	131	XSTDERR=""
	132	XAPTOPT=""
	133	XUUPOPT="-d"
	134	fi
	135	if [ "$VERBOSE" -ge 3 ]; then
	136	# trace output
	137	set -x
	138	fi
	139	# laptop check, on_ac_power returns:
	140	# 0 (true) System is on main power
	141	# 1 (false) System is not on main power
	142	# 255 (false) Power status could not be determined
	143	# Desktop systems always return 255 it seems
	144	if which on_ac_power >/dev/null; then
	145	on_ac_power
	146	POWER=$?
	147	if [ $POWER -eq 1 ]; then
	148	debug_echo "exit: system on main power."
	149	exit 0
	150	elif [ $POWER -ne 0 ]; then
	151	debug_echo "exit: power status ($POWER) undetermined."
	152	exit 0
6cce801a	153	fi
ff7c76f8 OA	154	debug_echo "system is on main power."
ff7c76f8 OA	155	fi
8a139d4d	156
ff7c76f8 OA	157	# check if we can lock the cache and if the cache is clean
	158	if which apt-get >/dev/null && ! eval apt-get check $XAPTOPT $XSTDERR ; then
	159	debug_echo "error encountered in cron job with \"apt-get check\"."
	160	exit 0
	161	fi
	162	# No need to check for apt-get below
8a139d4d	163
ff7c76f8 OA	164	# Global current time in seconds since 1970-01-01 00:00:00 UTC
ff7c76f8 OA	165	now=$(date +%s)
6cce801a	166
ff7c76f8 OA	167	# Set default values and normalize
	168	Dir="/"
	169	eval $(apt-config shell Dir Dir)
	170	Dir=${Dir%/}
	171
	172	CacheDir="var/cache/apt/"
	173	eval $(apt-config shell CacheDir Dir::Cache)
	174	CacheDir=${CacheDir%/}
	175	if [ -z "$CacheDir" ]; then
	176	debug_echo "practically empty Dir::Cache, exiting"
	177	exit 0
	178	fi
69c28efc	179
ff7c76f8 OA	180	CacheArchive="archives/"
	181	eval $(apt-config shell CacheArchive Dir::Cache::Archives)
	182	CacheArchive=${CacheArchive%/}
	183	if [ -z "$CacheArchive" ]; then
	184	debug_echo "practically empty Dir::Cache::archives, exiting"
	185	exit 0
	186	fi
69c28efc	187
ff7c76f8 OA	188	BackupArchiveInterval=0
	189	eval $(apt-config shell BackupArchiveInterval APT::Periodic::BackupArchiveInterval)
	190
	191	BackupArchiveLevel=3
	192	eval $(apt-config shell BackupArchiveLevel APT::Periodic::BackupArchiveLevel)
	193	if [ $BackupArchiveLevel -le 1 ]; then BackupArchiveLevel=2 ; fi
	194
	195	CacheBackup="backup/"
	196	eval $(apt-config shell CacheBackup Dir::Cache::Backup)
	197	CacheBackup=${CacheBackup%/}
	198	if [ -z "$CacheBackup" ]; then
	199	echo "practically empty Dir::Cache::Backup, exiting" 1>&2
	200	exit 0
18d38975	201	fi
87ddfb96	202
ff7c76f8 OA	203	# Support old Archive for compatibility.
	204	# Document only Periodic for all controling parameters of this script.
	205	MaxAge=0
	206	eval $(apt-config shell MaxAge APT::Archives::MaxAge)
	207	eval $(apt-config shell MaxAge APT::Periodic::MaxAge)
	208
	209	MinAge=2
	210	eval $(apt-config shell MinAge APT::Archives::MinAge)
	211	eval $(apt-config shell MinAge APT::Periodic::MinAge)
	212
	213	MaxSize=0
	214	eval $(apt-config shell MaxSize APT::Archives::MaxSize)
	215	eval $(apt-config shell MaxSize APT::Periodic::MaxSize)
	216
0c132682	217	UpdateInterval=0
ff7c76f8 OA	218	eval $(apt-config shell UpdateInterval APT::Periodic::Update-Package-Lists)
ff7c76f8 OA	219
05f6a46a	220	DownloadUpgradeableInterval=0
ff7c76f8	221	eval $(apt-config shell DownloadUpgradeableInterval APT::Periodic::Download-Upgradeable-Packages)
0c132682	222
fdd15654 MV	223	UnattendedUpgradeInterval=0
	224	eval $(apt-config shell UnattendedUpgradeInterval APT::Periodic::Unattended-Upgrade)
	225
ff7c76f8 OA	226	AutocleanInterval=0
	227	eval $(apt-config shell AutocleanInterval APT::Periodic::AutocleanInterval)
	228
	229	Cache="${Dir}/${CacheDir}/${CacheArchive}/"
	230	Back="${Dir}/${CacheDir}/${CacheBackup}/"
	231	BackX="${Back}${CacheArchive}/"
	232	for x in $(seq 0 1 $((${BackupLevel}-1))); do
	233	eval "Back${x}=${Back}${x}/"
	234	done
	235
	236	# backup after n-days if archive contents changed.
	237	# (This uses hardlink to save disk space)
	238	BACKUP_ARCHIVE_STAMP=/var/lib/apt/periodic/backup-archive-stamp
	239	if check_stamp $BACKUP_ARCHIVE_STAMP $BackupArchiveInterval; then
	240	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
	241	mkdir -p $Back
	242	rm -rf $Back$((${BackupLevel}-1))
	243	for y in $(seq $((${BackupLevel}-1)) -1 1); do
	244	eval BackY=${Back}$y
	245	eval BackZ=${Back}$(($y-1))
	246	if [ -e $BackZ ]; then mv -f $BackZ $BackY ; fi
	247	done
	248	cp -la $Cache $Back ; mv -f $BackX $Back0
	249	update_stamp $BACKUP_ARCHIVE_STAMP
	250	debug_echo "backup with hardlinks. (success)"
	251	else
fdd15654	252
ff7c76f8	253	debug_echo "skip backup since same content."
0c132682	254	fi
ff7c76f8 OA	255	else
ff7c76f8 OA	256	debug_echo "skip backup since too new."
0c132682 MZ	257	fi
0c132682 MZ	258
ff7c76f8 OA	259	# package archive contnts removal by package age
	260	if [ $MaxAge -ne 0 ] && [ $MinAge -ne 0 ]; then
	261	find $Cache -name "*.deb" \( -mtime +$MaxAge -and -ctime +$MaxAge \) -and -not \( -mtime -$MinAge -or -ctime -$MinAge \) -print0 \| xargs -r -0 rm -f
	262	debug_echo "aged: ctime <$MaxAge and mtime <$MaxAge and ctime>$MinAge and mtime>$MinAge"
	263	elif [ $MaxAge -ne 0 ]; then
	264	find $Cache -name "*.deb" -ctime +$MaxAge -and -mtime +$MaxAge -print0 \| xargs -r -0 rm -f
	265	debug_echo "aged: ctime <$MaxAge and mtime <$MaxAge only"
	266	else
	267	debug_echo "skip aging since MaxAge is 0"
e15dcd38	268	fi
ff7c76f8 OA	269
	270	# package archive contnts removal down to $MaxSize
	271	if [ $MaxSize -ne 0 ]; then
	272
	273	MinAgeSec=$(($MinAge2460*60))
	274
	275	# reverse-sort by mtime
	276	for file in $(ls -rt $Cache/*.deb 2>/dev/null); do
	277	du=$(du -m -s $Cache)
	278	size=${du%%/*}
	279	# check if the cache is small enough
	280	if [ $size -lt $MaxSize ]; then
	281	debug_echo "end remove by archive size: size=$size < $MaxSize"
	282	break
	283	fi
e15dcd38	284
ff7c76f8 OA	285	# check for MinAge in second of the file
	286	if [ $MinAgeSec -ne 0 ]; then
	287	# check both ctime and mtime
	288	mtime=$(stat -c %Y $file)
	289	ctime=$(stat -c %Z $file)
	290	if [ $mtime -gt $ctime ]; then
	291	delta=$(($now-$mtime))
	292	else
	293	delta=$(($now-$ctime))
	294	fi
	295	if [ $delta -le $MinAgeSec ]; then
	296	debug_echo "skip remove by archive size: $file, delta=$delta < $MinAgeSec"
	297	else
	298	# delete oldest file
	299	debug_echo "remove by archive size: $file, delta=$delta >= $MinAgeSec (sec), size=$size >= $MaxSize"
	300	rm -f $file
	301	fi
	302	fi
69c28efc	303
ff7c76f8	304	done
69c28efc	305	fi
e15dcd38	306
ff7c76f8	307	# update package lists
05f6a46a MZ	308	UPDATE_STAMP=/var/lib/apt/periodic/update-stamp
05f6a46a MZ	309	if check_stamp $UPDATE_STAMP $UpdateInterval; then
ff7c76f8 OA	310	if eval apt-get $XAPTOPT -y update $XSTDERR; then
ff7c76f8 OA	311	debug_echo "download updated metadata (success)."
05f6a46a	312	if which dbus-send >/dev/null; then
ff7c76f8 OA	313	if dbus-send --system / app.apt.dbus.updated boolean:true ; then
	314	debug_echo "send dbus signal (success)"
	315	else
	316	debug_echo "send dbus signal (error)"
	317	fi
	318	else
	319	debug_echo "dbus signal not send (command not available)"
05f6a46a	320	fi
ff7c76f8 OA	321	update_stamp $UPDATE_STAMP
	322	# download all upgradeable packages if it is requested
	323	DOWNLOAD_UPGRADEABLE_STAMP=/var/lib/apt/periodic/download-upgradeable-stamp
	324	if check_stamp $DOWNLOAD_UPGRADEABLE_STAMP $DownloadUpgradeableInterval; then
	325	if eval apt-get $XAPTOPT -y -d dist-upgrade $XSTDERR; then
	326	update_stamp $DOWNLOAD_UPGRADEABLE_STAMP
	327	debug_echo "download upgradable (success)."
	328	# auto upgrade all upgradeable packages
	329	UPGRADE_STAMP=/var/lib/apt/periodic/upgrade-stamp
	330	if which unattended-upgrade >/dev/null && check_stamp $UPGRADE_STAMP $UnattendedUpgradeInterval; then
	331	if unattended-upgrade $XUUPOPT; then
	332	update_stamp $UPGRADE_STAMP
	333	debug_echo "unattended-upgrade (success)."
	334	else
	335	debug_echo "unattended-upgrade (error)."
	336	fi
	337	else
	338	debug_echo "unattended-upgrade (not run)."
	339	fi
	340	else
	341	debug_echo "download upgradable (error)."
	342	fi
	343	else
	344	debug_echo "download upgradable (not run)."
	345	fi
	346	else
	347	debug_echo "download updated metadata (error)."
05f6a46a	348	fi
ff7c76f8 OA	349	else
ff7c76f8 OA	350	debug_echo "download updated metadata (not run)."
0c132682 MZ	351	fi
0c132682 MZ	352
ff7c76f8	353	# autoclean package archive
de15fbae MV	354	AUTOCLEAN_STAMP=/var/lib/apt/periodic/autoclean-stamp
de15fbae MV	355	if check_stamp $AUTOCLEAN_STAMP $AutocleanInterval; then
ff7c76f8 OA	356	if apt-get $XAPTOPT -y autoclean $XSTDERR; then
	357	debug_echo "autoclean (success)."
	358	update_stamp $AUTOCLEAN_STAMP
	359	else
	360	debug_echo "autoclean (error)."
	361	fi
	362	else
	363	debug_echo "autoclean (not run)."
de15fbae MV	364	fi
de15fbae MV	365
ff7c76f8 OA	366	#
	367	# vim: set sts=4 ai :
	368	#
	369