X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/be993931c56d0d435e03c80f3afcc31714aec1ba..d4cd303eae3d686b62b55e8a8202a3430b16f038:/debian/apt.cron.daily

diff --git a/debian/apt.cron.daily b/debian/apt.cron.daily
index cdb970521..cdec7eea0 100644
--- a/debian/apt.cron.daily
+++ b/debian/apt.cron.daily
@@ -102,6 +102,96 @@ update_stamp()
     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 MinAge APT::Archives::MinAge)
+    eval $(apt-config shell MaxSize APT::Archives::MaxSize)
+    eval $(apt-config shell Dir Dir)
+    eval $(apt-config shell CacheDir Dir::Cache)
+    eval $(apt-config shell CacheArchive Dir::Cache::archives)
+
+    # sanity check
+    if [ -z "$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
+	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
+	find $Cache -name "*.deb"  -ctime +$MaxAge -and -mtime +$MaxAge -print0 | xargs -r -0 rm -f
+    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
+		break
+	    fi
+
+	    # check for MinAge of the file
+	    if [ ! $MinAge -eq 0 ]; then 
+		# check both ctime and mtime 
+		mtime=$(stat -c %Y $file)
+		ctime=$(stat -c %Z $file)
+		if [ $mtime -gt $ctime ]; then
+		    delta=$(($now-$mtime))
+		else
+		    delta=$(($now-$ctime))
+		fi
+		#echo "$file ($delta), $MinAge"
+		if [ $delta -le $MinAge ]; then
+		    #echo "Skiping $file (delta=$delta)"
+		    break
+		fi
+	    fi
+
+	    # delete oldest file
+	    rm -f $file
+	done
+    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))
+    sleep $TIME
+}
+
+
 debug_echo()
 {
     # Display message if $VERBOSE >= 1
@@ -110,6 +200,8 @@ debug_echo()
     fi
 }
 
+# main
+
 # check apt-config exstance
 if ! which apt-config >/dev/null ; then
 	exit 0
@@ -136,6 +228,7 @@ 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
@@ -233,6 +326,16 @@ for x in $(seq 0 1 $((${BackupLevel}-1))); do
     eval "Back${x}=${Back}${x}/"
 done
 
+# 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
+
+
 # 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