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systemd/systemd-sysv-convert

113 lines
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#!/bin/bash
info() {
echo "$(basename $0): $*"
}
warn() {
echo >&2 "$(basename $0): warning, $*"
}
usage() {
echo >&2 "usage: $(basename $0) --apply <service> [<service> ...]"
}
if [ "$UID" != "0" ]; then
warn "need to be root, aborting"
exit 1
fi
if [ $# -lt 2 ]; then
usage
exit 1
fi
database_lookup() {
local service unused
# 'priority' field is not used but is kept for backward compat reason.
while read service unused; do
if [ $service == $1 ]; then
return 0
fi
done </var/lib/systemd/sysv-convert/database
return 1
}
database_add() {
# Write a dumb priority as it is not used.
echo "$1 $2 50" >>/var/lib/systemd/sysv-convert/database
}
# Initialize the database.
if [ ! -e /var/lib/systemd/sysv-convert/database ]; then
touch /var/lib/systemd/sysv-convert/database
fi
case "$1" in
--save)
# --save is kept for backward compatibility.
;;
--apply)
shift
for service in $@; do
# For backward compat we accept the name of the
# service with or without the unit type suffix. If the
# suffix is not there, assume .service type.
case "$service" in
*.*) initscript="${service%.*}" ;;
*) initscript="$service"
service="$service.service"
esac
# Did we already migrate this service during a previous update ?
database_lookup $initscript &&
continue
# Sanity check.
unit="/usr/lib/systemd/system/$service"
if [ ! -f "$unit" ]; then
warn "$unit not found, skipping"
continue
fi
# Mark the service as processed to make sure we will do the migration only
# once. This is important especially for packages that keep their init
# scripts around even if they're no more used. Since the saved info won't
# be reused again we simply use an invalid runlevel and add the service
# in the db only once.
database_add $initscript -1
# The package is introducing new services and never has any sysv init
# scripts (bsc#982303).
if [ ! -r /etc/init.d/$initscript ] &&
[ ! -r /etc/init.d/boot.$initscript ]; then
continue
fi
for rcnd in rc2.d rc3.d rc4.d rc5.d boot.d; do
# Was the sysvinit script enabled ? (bsc#982211)
case $rcnd in
boot.d) [ -L /etc/rc.d/boot.d/S??boot.$initscript ] || continue ;;
*) [ -L /etc/rc.d/$rcnd/S??$initscript ] || continue
esac
case $rcnd in
boot.d) runlevel=3 ;;
*) runlevel=${rcnd:2:1}
esac
target=runlevel$runlevel.target
info "enabling $unit (wanted by $target)..."
mkdir -p "/etc/systemd/system/$target.wants"
ln -sf $unit /etc/systemd/system/$target.wants/$service
done
done
;;
*)
usage
exit 1
esac