support every compression we have a compressor configured

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

diff --git a/debian/apt.cron.daily b/debian/apt.cron.daily
index 4f47ccfab76e955346180eebb7088bd6a84ed0c9..c61bfb9bb3cd0f7c885f6eca09f13b002d694be2 100644 (file)
--- a/debian/apt.cron.daily
+++ b/debian/apt.cron.daily
@@ -11,9 +11,12 @@
 #  Dir::Cache "var/apt/cache/";
 #  - Set apt package cache directory
 #
-#  Dir::Cache::Archive "archives/";
+#  Dir::Cache::Archives "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)
@@ -141,21 +147,14 @@ check_size_constraints()
     eval $(apt-config shell MaxSize APT::Archives::MaxSize)
     eval $(apt-config shell MaxSize APT::Periodic::MaxSize)
 
-    CacheDir="var/cache/apt/"
-    eval $(apt-config shell CacheDir Dir::Cache)
-    CacheDir=${CacheDir%/}
-
-    CacheArchive="archives/"
-    eval $(apt-config shell CacheArchive Dir::Cache::archives)
-    CacheArchive=${CacheArchive%/}
+    Cache="/var/cache/apt/archives/"
+    eval $(apt-config shell Cache Dir::Cache::archives/d)
 
     # sanity check
-    if [ -z "$CacheDir" -o -z "$CacheArchive" ]; then
-       echo "empty Dir::Cache or Dir::Cache::archives, exiting"
+    if [ -z "$Cache" ]; then
+       echo "empty Dir::Cache::archives, exiting"
        exit
     fi
-    
-    Cache="${Dir%/}/${CacheDir%/}/${CacheArchive%/}/"
 
     # check age
     if [ ! $MaxAge -eq 0 ] && [ ! $MinAge -eq 0 ]; then
@@ -219,22 +218,17 @@ do_cache_backup()
     fi
 
     # 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="/var/cache/apt"
+    eval $(apt-config shell CacheDir Dir::Cache/d)
     CacheDir=${CacheDir%/}
     if [ -z "$CacheDir" ]; then
        debug_echo "practically empty Dir::Cache, exiting"
        return 0
     fi
 
-    CacheArchive="archives/"
-    eval $(apt-config shell CacheArchive Dir::Cache::Archives)
-    CacheArchive=${CacheArchive%/}
-    if [ -z "$CacheArchive" ]; then
+    Cache="${CacheDir}/archives/"
+    eval $(apt-config shell Cache Dir::Cache::Archives/d)
+    if [ -z "$Cache" ]; then
        debug_echo "practically empty Dir::Cache::archives, exiting"
        return 0
     fi
@@ -245,16 +239,15 @@ do_cache_backup()
        BackupLevel=2 ; 
     fi
     
-    CacheBackup="backup/"
-    eval $(apt-config shell CacheBackup Dir::Cache::Backup)
-    CacheBackup=${CacheBackup%/}
-    if [ -z "$CacheBackup" ]; then
+    Back="${CacheDir}/backup/"
+    eval $(apt-config shell Back Dir::Cache::Backup/d)
+    if [ -z "$Back" ]; then
        echo "practically empty Dir::Cache::Backup, exiting" 1>&2
        return
     fi
 
-    Cache="${Dir}/${CacheDir}/${CacheArchive}/"
-    Back="${Dir}/${CacheDir}/${CacheBackup}/"
+    CacheArchive="$(basename "${Cache}")"
+    test -n "${CacheArchive}" || CacheArchive="archives"
     BackX="${Back}${CacheArchive}/"
     for x in $(seq 0 1 $((${BackupLevel}-1))); do 
        eval "Back${x}=${Back}${x}/"
@@ -314,17 +307,32 @@ debug_echo()
 
 # ------------------------ main ----------------------------
 
+# Backup the 7 last versions of APT's extended_states file
+# shameless copy from dpkg cron
+if cd /var/backups ; then
+    if ! cmp -s apt.extended_states.0 /var/lib/apt/extended_states; then
+       cp -p /var/lib/apt/extended_states apt.extended_states
+       savelog -c 7 apt.extended_states >/dev/null
+    fi
+fi
+
 # check apt-config exstance
 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"
@@ -386,12 +394,19 @@ 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
 
@@ -402,6 +417,13 @@ do_cache_backup $BackupArchiveInterval
 # mirrors at the same time
 random_sleep
 
+# include default system language so that "apt-get update" will
+# fetch the right translated package descriptions
+if [ -r /etc/default/locale ]; then
+    . /etc/default/locale
+    export LANG LANGUAGE LC_MESSAGES LC_ALL
+fi
+
 # update package lists
 UPDATED=0
 UPDATE_STAMP=/var/lib/apt/periodic/update-stamp
@@ -429,6 +451,9 @@ fi
 # download all upgradeable packages (if it is requested)
 DOWNLOAD_UPGRADEABLE_STAMP=/var/lib/apt/periodic/download-upgradeable-stamp
 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)"