fi
}
+check_power(){
+ # laptop check, on_ac_power returns:
+ # 0 (true) System is on main power
+ # 1 (false) System is not on main power
+ # 255 (false) Power status could not be determined
+ # Desktop systems always return 255 it seems
+ if which on_ac_power >/dev/null; then
+ on_ac_power
+ POWER=$?
+ if [ $POWER -eq 1 ]; then
+ debug_echo "exit: system NOT on main power"
+ return 1
+ elif [ $POWER -ne 0 ]; then
+ debug_echo "power status ($POWER) undetermined, continuing"
+ fi
+ debug_echo "system is on main power."
+ fi
+ return 0
+}
+
# ------------------------ main ----------------------------
# Backup the 7 last versions of APT's extended_states file
set -x
fi
-# laptop check, on_ac_power returns:
-# 0 (true) System is on main power
-# 1 (false) System is not on main power
-# 255 (false) Power status could not be determined
-# Desktop systems always return 255 it seems
-if which on_ac_power >/dev/null; then
- on_ac_power
- POWER=$?
- if [ $POWER -eq 1 ]; then
- debug_echo "exit: system NOT on main power"
- exit 0
- elif [ $POWER -ne 0 ]; then
- debug_echo "power status ($POWER) undetermined, continuing"
- fi
- debug_echo "system is on main power."
-fi
+check_power || exit 0
# check if we can lock the cache and if the cache is clean
if which apt-get >/dev/null && ! eval apt-get check -f $XAPTOPT $XSTDERR ; then
# sleep random amount of time to avoid hitting the
# mirrors at the same time
random_sleep
+check_power || exit 0
+
+# 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
# auto upgrade all upgradeable packages
UPGRADE_STAMP=/var/lib/apt/periodic/upgrade-stamp
-if [ $UPDATED -eq 1 ] && which unattended-upgrade >/dev/null && check_stamp $UPGRADE_STAMP $UnattendedUpgradeInterval; then
+if 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)"