Sync with Matt

Patches applied:

 * apt@packages.debian.org/apt--main--0--patch-72
   Open 0.6.36

 * apt@packages.debian.org/apt--main--0--patch-73
   Merge apt--mvo--0

 * apt@packages.debian.org/apt--main--0--patch-74
   Update changelog

 * apt@packages.debian.org/apt--main--0--patch-75
   Merge bubulle@debian.org--2005/apt--main--0

 * apt@packages.debian.org/apt--main--0--patch-76
   Update changelog

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-9
   * be more carefull when building the archive path (thanks to matt!)

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-10
   * ignore time conflicts on apt-key update (this is used at install time when the clock may be totally broken)

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-11
   * run check_size_constraints independent of AUTOCLEAN (thanks Matt)

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-12
   * check cache size after AUTOCLEAN was run (but independent)

 * michael.vogt@ubuntu.com--2005/apt--mvo--0--patch-13
   * MinAge implemented, cron script variables documented, bugfix in check_stamp() function

3 files changed, 106 insertions, 2 deletions

diff --git a/cmdline/apt-key b/cmdline/apt-key
index a96afe944..be2b19a1a 100755
--- a/cmdline/apt-key
+++ b/cmdline/apt-key
@@ -21,7 +21,7 @@ update() {
     fi
 
     # add new keys
-    $GPG_CMD --quiet --batch --keyring $ARCHIVE_KEYRING --export | $GPG --import
+    $GPG_CMD --quiet --batch --keyring $ARCHIVE_KEYRING --export | $GPG --ignore-time-conflict --import
 
     # remove no-longer used keys
     keys=`$GPG_CMD --keyring $REMOVED_KEYS --with-colons --list-keys|awk '/^pub/{FS=":";print $5}'`
diff --git a/configure.in b/configure.in
index 8c2fcbae6..3c5d6d69d 100644
--- a/configure.in
+++ b/configure.in
@@ -18,7 +18,7 @@ AC_CONFIG_AUX_DIR(buildlib)
 AC_CONFIG_HEADER(include/config.h:buildlib/config.h.in include/apti18n.h:buildlib/apti18n.h.in)
 
 dnl -- SET THIS TO THE RELEASE VERSION --
-AC_DEFINE_UNQUOTED(VERSION,"0.6.32")
+AC_DEFINE_UNQUOTED(VERSION,"0.6.35")
 PACKAGE="apt"
 AC_DEFINE_UNQUOTED(PACKAGE,"$PACKAGE")
 AC_SUBST(PACKAGE)
diff --git a/debian/apt.cron.daily b/debian/apt.cron.daily
index 982a35d74..0128e0194 100644
--- a/debian/apt.cron.daily
+++ b/debian/apt.cron.daily
@@ -2,6 +2,33 @@
 #
 
 #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::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()
 {
@@ -21,6 +48,11 @@ check_stamp()
     now=$(date --date=$(date --iso-8601) +%s)
     delta=$(($now-$stamp))
 
+    # intervall is in days,
+    interval=$(($interval*60*60*24))
+    #echo "stampfile: $1"
+    #echo "interval=$interval, now=$now, stamp=$stamp, delta=$delta"
+
     if [ $delta -ge $interval ]; then
         return 0
     fi
@@ -80,6 +112,75 @@ check_size_constraints()
 
 check_size_constraints
 
+
+
+# we check here if autoclean was enough sizewise
+check_size_constraints()
+{
+    # min-age in days
+    MaxAge=0
+    MinAge=1
+    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 -not -mtime -$MinAge -print0 | xargs -r -0 rm -f
+    elif [ ! $MaxAge -eq 0 ]; then
+	find $Cache -name "*.deb"  -mtime +$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 $Cache/*.deb); do 
+	    du=$(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 [ ! $MinAge -eq 0 ]; then 
+		mtime=$(date --date=$(date -r $file --iso-8601) +%s)
+		delta=$(($now-$mtime))
+		#echo "$file ($delta), $MinAge"
+		if [ $delta -le $MinAge ]; then
+		    #echo "Skiping $file (delta=$delta)"
+		    continue
+		fi
+	    fi
+
+	    # delete oldest file
+	    rm -f $file
+	done
+    fi
+}
+
+
 UpdateInterval=0
 DownloadUpgradeableInterval=0
 eval $(apt-config shell UpdateInterval APT::Periodic::Update-Package-Lists DownloadUpgradeableInterval APT::Periodic::Download-Upgradeable-Packages)
@@ -120,3 +221,6 @@ if check_stamp $AUTOCLEAN_STAMP $AutocleanInterval; then
     check_size_contrains
     update_stamp $AUTOCLEAN_STAMP
 fi
+
+# check cache size 
+check_size_constraints