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

#!/bin/sh

set -e

# Systemd systems use a systemd timer unit which is preferable to
# run. We want to randomize the apt update and unattended-upgrade
# runs as much as possible to avoid hitting the mirrors all at the
# same time. The systemd time is better at this than the fixed
# cron.daily time
if [ -d /run/systemd/system ]; then
    exit 0
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=$(( $(dd if=/dev/urandom bs=2 count=1 2> /dev/null | cksum | cut -d' ' -f1) % 32767 ))
    fi
    TIME=$(($RANDOM % $RandomSleep))
    sleep $TIME
}

# run daily job
random_sleep
exec /usr/lib/apt/apt.systemd.daily
Commit	Line	Data
14669d4b MV	1	#!/bin/sh
	2
	3	set -e
	4
	5	# Systemd systems use a systemd timer unit which is preferable to
	6	# run. We want to randomize the apt update and unattended-upgrade
	7	# runs as much as possible to avoid hitting the mirrors all at the
	8	# same time. The systemd time is better at this than the fixed
	9	# cron.daily time
	10	if [ -d /run/systemd/system ]; then
	11	exit 0
	12	fi
	13
	14	# sleep for a random interval of time (default 30min)
	15	# (some code taken from cron-apt, thanks)
	16	random_sleep()
	17	{
	18	RandomSleep=1800
	19	eval $(apt-config shell RandomSleep APT::Periodic::RandomSleep)
	20	if [ $RandomSleep -eq 0 ]; then
	21	return
	22	fi
	23	if [ -z "$RANDOM" ] ; then
	24	# A fix for shells that do not have this bash feature.
	25	RANDOM=$(( $(dd if=/dev/urandom bs=2 count=1 2> /dev/null \| cksum \| cut -d' ' -f1) % 32767 ))
	26	fi
	27	TIME=$(($RANDOM % $RandomSleep))
	28	sleep $TIME
	29	}
	30
	31	# run daily job
	32	random_sleep
	33	exec /usr/lib/apt/apt.systemd.daily