merged from lp:~mvo/apt/mvo

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

diff --git a/debian/apt.cron.daily b/debian/apt.cron.daily
index 8c2bd22d97cccd5216da9bc103d50ead3df585c9..e59b05ee484534bb0d74bb59718f8cf7fdba1593 100644 (file)
--- a/debian/apt.cron.daily
+++ b/debian/apt.cron.daily
@@ -14,6 +14,9 @@
 #  Dir::Cache::Archive "archives/";
 #  - Set package archive directory
 #
+#  APT::Periodic::Enable "1";
+#  - Enable the update/upgrade script (0=disable)
+#
 #  APT::Periodic::BackupArchiveInterval "0";
 #  - Backup after n-days if archive contents changed.(0=disable)
 #
@@ -46,7 +49,10 @@
 #    
 #  APT::Periodic::Download-Upgradeable-Packages "0";
 #  - Do "apt-get upgrade --download-only" every n-days (0=disable)
-# 
+#
+#  APT::Periodic::Download-Upgradeable-Packages-Debdelta "1";
+#  - Use debdelta-upgrade to download updates if available (0=disable)
+#
 #  APT::Periodic::Unattended-Upgrade "0";
 #  - Run the "unattended-upgrade" security upgrade script 
 #    every n-days (0=disabled)
@@ -69,7 +75,7 @@ check_stamp()
     interval="$2"
 
     if [ $interval -eq 0 ]; then
-       debug_echo "check_stamp: interval=0."
+       debug_echo "check_stamp: interval=0"
        # treat as no time has passed
         return 1
     fi
@@ -81,13 +87,38 @@ check_stamp()
     fi
 
     # compare midnight today to midnight the day the stamp was updated
-    stamp=$(date -r $stamp '+%s')
+    stamp_file="$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, convert to sec.
     interval=$(($interval*60*60*24))
     debug_echo "check_stamp: interval=$interval, now=$now, stamp=$stamp, delta=$delta (sec)"
 
+    # 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
@@ -294,12 +325,18 @@ if ! which apt-config >/dev/null ; then
        exit 0
 fi
 
+# check if the user really wants to do something
+AutoAptEnable=1  # default is yes
+eval $(apt-config shell AutoAptEnable APT::Periodic::Enable)
+
+if [ $AutoAptEnable -eq 0 ]; then
+    exit 0
+fi
+
 # Set VERBOSE mode from  apt-config (or inherit from environment)
+VERBOSE=0
 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"
@@ -335,7 +372,7 @@ if which on_ac_power >/dev/null; then
 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
+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
@@ -361,12 +398,19 @@ 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
+Debdelta=1
+eval $(apt-config shell Debdelta APT::Periodic::Download-Upgradeable-Packages-Debdelta)
+
+# check if we actually have to do anything that requires locking the cache
 if [ $UpdateInterval -eq 0 ] &&
    [ $DownloadUpgradeableInterval -eq 0 ] &&
    [ $UnattendedUpgradeInterval -eq 0 ] &&
    [ $BackupArchiveInterval -eq 0 ] &&
    [ $AutocleanInterval -eq 0 ]; then
+
+    # check cache size
+    check_size_constraints
+
     exit 0
 fi
 
@@ -378,6 +422,7 @@ do_cache_backup $BackupArchiveInterval
 random_sleep
 
 # update package lists
+UPDATED=0
 UPDATE_STAMP=/var/lib/apt/periodic/update-stamp
 if check_stamp $UPDATE_STAMP $UpdateInterval; then
     if eval apt-get $XAPTOPT -y update $XSTDERR; then
@@ -392,6 +437,7 @@ if check_stamp $UPDATE_STAMP $UpdateInterval; then
            debug_echo "dbus signal not send (command not available)"
        fi
        update_stamp $UPDATE_STAMP
+       UPDATED=1
     else
        debug_echo "download updated metadata (error)"
     fi
@@ -401,7 +447,10 @@ fi
        
 # 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 [ $UPDATED -eq 1 ] && check_stamp $DOWNLOAD_UPGRADEABLE_STAMP $DownloadUpgradeableInterval; then
+    if [ $Debdelta -eq 1 ]; then
+        debdelta-upgrade >/dev/null 2>&1 || true
+    fi
     if  eval apt-get $XAPTOPT -y -d dist-upgrade $XSTDERR; then
        update_stamp $DOWNLOAD_UPGRADEABLE_STAMP
        debug_echo "download upgradable (success)"
@@ -414,7 +463,7 @@ fi
 
 # 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 [ $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)"
@@ -438,6 +487,9 @@ else
     debug_echo "autoclean (not run)"
 fi
 
+# check cache size 
+check_size_constraints
+
 #
 #     vim: set sts=4 ai :
 #