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

diff --git a/debian/apt.cron.daily b/debian/apt.cron.daily
index 1d830260b82c50f9b2e6859bd4abb268c61ebc4b..32fbafc57cfb037d0bdeb9e7348942493181efca 100644 (file)
--- a/debian/apt.cron.daily
+++ b/debian/apt.cron.daily
@@ -14,6 +14,12 @@
 #  "APT::Periodic::AutocleanInterval"
 #  - Do "apt-get autoclean" 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::MaxAge",
 #  - Set maximum allowed age of a cache package file. If a cache 
 #    package file is older it is deleted (0=disable)


@@ -69,51 +75,6 @@ update_stamp()
 
 
 
 
 
 

-# we check here if autoclean was enough sizewise
-check_size_constraints()
-{
-    # min-age in days
-    MaxAge=0
-    MaxSize=0
-    CacheDir="var/cache/apt"
-    CacheArchive="archives/"
-    eval $(apt-config shell MaxAge APT::Archives::MaxAge)
-    eval $(apt-config shell MaxSize APT::Archives::MaxSize)
-    eval $(apt-config shell CacheDir Dir::Cache)
-    eval $(apt-config shell CacheArchive Dir::Cache::archives)
-
-    # sanity check
-    if [ -z "$CacheDir" -o -z "$CacheArchive" ]; then
-       echo "empty Dir::Cache or Dir::Cache::archives, exiting"
-       exit
-    fi
-    Cache="/"$CacheDir$CacheArchive
-
-    # check age
-    if [ ! $MaxAge -eq 0 ]; then
-       find $Cache -name "*.deb"  -mtime +$MaxAge -print0 | xargs -r -0 rm -f
-    fi
-    
-    # check size
-    if [ ! $MaxSize -eq 0 ]; then
-       # 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
-           # delete oldest file
-           rm -f $file
-       done
-    fi
-}
-
-check_size_constraints
-
-
-

 # we check here if autoclean was enough sizewise
 check_size_constraints()
 {
 # we check here if autoclean was enough sizewise
 check_size_constraints()
 {


@@ -140,9 +101,9 @@ check_size_constraints()
 
     # check age
     if [ ! $MaxAge -eq 0 ] && [ ! $MinAge -eq 0 ]; then
 
     # 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
+       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
     elif [ ! $MaxAge -eq 0 ]; then

-       find $Cache -name "*.deb"  -mtime +$MaxAge -print0 | xargs -r -0 rm -f
+       find $Cache -name "*.deb"  -ctime +$MaxAge -and -mtime +$MaxAge -print0 | xargs -r -0 rm -f

     fi
     
     # check size
     fi
     
     # check size


@@ -155,7 +116,7 @@ check_size_constraints()
        MinAge=$(($MinAge*24*60*60))
 
        # reverse-sort by mtime
        MinAge=$(($MinAge*24*60*60))
 
        # reverse-sort by mtime

-       for file in $(ls -rt $Cache/*.deb); do 
+       for file in $(ls -rt $Cache/*.deb 2>/dev/null); do 

            du=$(du -s $Cache)
            size=${du%%/*}
            # check if the cache is small enough
            du=$(du -s $Cache)
            size=${du%%/*}
            # check if the cache is small enough


@@ -165,12 +126,18 @@ check_size_constraints()
 
            # check for MinAge of the file
            if [ ! $MinAge -eq 0 ]; then 
 
            # check for MinAge of the file
            if [ ! $MinAge -eq 0 ]; then 

-               mtime=$(date --date=$(date -r $file --iso-8601) +%s)
-               delta=$(($now-$mtime))
+               # 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)"
                #echo "$file ($delta), $MinAge"
                if [ $delta -le $MinAge ]; then
                    #echo "Skiping $file (delta=$delta)"

-                   continue
+                   break

                fi
            fi
 
                fi
            fi
 


@@ -180,12 +147,44 @@ check_size_constraints()
     fi
 }
 
     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
+}
+
+# main
+
+if ! which apt-config >/dev/null; then
+       exit 0
+fi

 
 UpdateInterval=0
 DownloadUpgradeableInterval=0
 eval $(apt-config shell UpdateInterval APT::Periodic::Update-Package-Lists DownloadUpgradeableInterval APT::Periodic::Download-Upgradeable-Packages)
 AutocleanInterval=$DownloadUpgradeableInterval
 
 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::Autoclean)
+eval $(apt-config shell AutocleanInterval APT::Periodic::AutocleanInterval)
+UnattendedUpgradeInterval=0
+eval $(apt-config shell UnattendedUpgradeInterval APT::Periodic::Unattended-Upgrade)
+
+# 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

 
 # laptop check, on_ac_power returns:
 #       0 (true)    System is on mains power
 
 # laptop check, on_ac_power returns:
 #       0 (true)    System is on mains power


@@ -199,12 +198,28 @@ if which on_ac_power >/dev/null; then
     fi
 fi
 
     fi
 fi
 

+# 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_STAMP=/var/lib/apt/periodic/update-stamp
 if check_stamp $UPDATE_STAMP $UpdateInterval; then
     if apt-get -qq update 2>/dev/null; then
 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; then
-           dbus-send --system / app.apt.dbus.updated boolean:true
-       fi
+        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
     fi
 fi
         update_stamp $UPDATE_STAMP
     fi
 fi


@@ -215,10 +230,15 @@ if check_stamp $DOWNLOAD_UPGRADEABLE_STAMP $DownloadUpgradeableInterval; then
     update_stamp $DOWNLOAD_UPGRADEABLE_STAMP
 fi
 
     update_stamp $DOWNLOAD_UPGRADEABLE_STAMP
 fi
 

+UPGRADE_STAMP=/var/lib/apt/periodic/upgrade-stamp
+if check_stamp $UPGRADE_STAMP $UnattendedUpgradeInterval; then
+    unattended-upgrade
+    update_stamp $UPGRADE_STAMP
+fi
+

 AUTOCLEAN_STAMP=/var/lib/apt/periodic/autoclean-stamp
 if check_stamp $AUTOCLEAN_STAMP $AutocleanInterval; then
     apt-get -qq autoclean
 AUTOCLEAN_STAMP=/var/lib/apt/periodic/autoclean-stamp
 if check_stamp $AUTOCLEAN_STAMP $AutocleanInterval; then
     apt-get -qq autoclean

-    check_size_contrains

     update_stamp $AUTOCLEAN_STAMP
 fi
 
     update_stamp $AUTOCLEAN_STAMP
 fi