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|
#!/bin/bash
usage() {
>&2 echo 'usage: update-me [-s|-c]'
>&2 echo ' -s: play it save'
>&2 echo ' -c: clear for exit'
exit $1
}
play_it_safe=false
safety_file='/tmp/update-me.do-not-exit'
case $# in
0)
;;
1)
case "x$1" in
'x-s')
play_it_safe=true
;;
'x-c')
if [ -f "${safety_file}" ] && kill -0 $(cat "${safety_file}"); then
rm "${safety_file}"
exit 0
fi
exit 1
;;
*)
usage
;;
esac
;;
*)
usage 1
;;
esac
preCmds=('hostname')
cmds=()
postCmds=('sync')
for mp in '/' '/boot'; do
mountpoint -q "${mp}" || continue
mount \
| cut -d' ' -f3,6 \
| grep "^${mp}\s" \
| cut -d' ' -f2 \
| grep -qwF 'ro' || continue
[ "${mp}" = '/boot' ] && [ -d '#ETCDIR#/ports' ] && continue
preCmds+=('mount -o remount,rw '"${mp}")
postCmds+=('mount -o remount,ro '"${mp}"' || reboot')
done
if command -v check-kernel >/dev/null; then
postCmds+=('check-kernel -r')
fi
exit_or_rescue_shell() {
if "${play_it_safe}"; then
printf '%s' "$$" >"${safety_file}"
>&2 printf '%s: waiting for clearance ...' "$(hostname)"
while [ -f "${safety_file}" ] && [ "$(cat "${safety_file}")" = "$$" ]; do
if read -t 1; then
>&2 printf ' rescue shell!\n'
bash
break
fi
done
>&2 printf ' clear.\n'
fi
if [ "$1" -eq 0 ]; then
>&2 printf '%s: Erfolg\n' "$(hostname)"
else
>&2 printf '%s: Fehler\n' "$(hostname)"
fi
read s
if [ -n "${s}" ]; then
bash
fi
exit "$1"
}
. #ETCDIR#/update-me.conf
if ! command -v sudo >/dev/null; then
hasSudo=false
fi
if [ ! "$(whoami)" == "root" ]; then
if ! "${hasSudo}"; then
hostname
err=1
maxCount=3
while [ ${err} -eq 1 ] && [ ${maxCount} -gt 0 ]
do
su -c "$(readlink -f "$0") || exit 2"
err=$?
maxCount=$[${maxCount} - 1]
done
exit ${err}
fi
pre='sudo'
else
pre=''
fi
if [ ${#cmds[@]} -eq 0 ]
then
if [ -d '#ETCDIR#/pacman.d' ]
then
cmds=('pacman -Syu' 'pacdiff')
elif [ -d '#ETCDIR#/ports' ]
then
cmds=('ports -u' 'prt-get --install-scripts sysup' 'rejmerge' 'revdep')
elif [ -d '#ETCDIR#/apt' ]
then
cmds=('apt-get update' 'apt-get upgrade' 'apt-get dist-upgrade' 'apt-get autoremove')
else
>&2 echo 'Unknown distribution!'
exit 1
fi
fi
for cmd in "${preCmds[@]}"
do
if [ -z "${cmd%%check-kernel*}" ] \
|| [ -z "${cmd%%mount*}" ]; then
eval ${pre} ${cmd}
else
eval ${cmd}
fi
err=$?
if [ ${err} -ne 0 ]
then
exit_or_rescue_shell ${err}
fi
done
for cmd in "${cmds[@]}"
do
eval ${pre} ${cmd}
err=$?
if [ ${err} -ne 0 ]
then
exit_or_rescue_shell ${err}
fi
done
for cmd in "${postCmds[@]}"
do
if [ -z "${cmd%%check-kernel*}" ] \
|| [ -z "${cmd%%mount*}" ]; then
eval ${pre} ${cmd}
else
eval ${cmd}
fi
err=$?
if [ ${err} -ne 0 ]
then
exit_or_rescue_shell ${err}
fi
done
exit_or_rescue_shell 0
|
