void-packages/srcpkgs/xbps-triggers/files/systemd-service
2013-02-25 23:20:53 +01:00

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#!/bin/sh
#
# systemd trigger to enable/disable services, create/remove files via
# systemd-tmpfiles(5) and load/unload modules via modules-load.d(5).
#
# The following env vars are recognized:
# - systemd_services (expects at least two arguments: service name
# and a boolean to restart automatically the service on upgrade).
# - systemd_tmpfiles (expects a black separated list of fileanmes).
# - systemd_modules (expects a blank separated list of filenames).
#
# Examples:
# systemd_services="foo.service off blah.service on"
# systemd_tmpfiles="foo.conf blah.conf"
# systemd_modules="foo.conf blah.conf"
#
# Arguments: $ACTION = [run/targets]
# $TARGET = [post-install/pre-remove]
# $PKGNAME
# $VERSION
# $UPDATE = [yes/no]
#
ACTION="$1"
TARGET="$2"
PKGNAME="$3"
VERSION="$4"
UPDATE="$5"
export PATH="$PATH:/usr/local/bin"
case "$ACTION" in
targets)
echo "post-install pre-remove"
;;
run)
[ ! -x bin/systemctl ] && exit 0
[ -z "$systemd_services" -a -z "$systemd_tmpfiles" -a -z "$systemd_modules" ] && exit 1
systemd-notify --booted
if [ $? -eq 0 ]; then
systemd_booted=yes
fi
set -- ${systemd_services}
while [ $# -gt 0 ]; do
_srv="$1"
case "$2" in
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1)
restart=1
;;
*)
unset restart
;;
esac
if [ "$TARGET" = "pre-remove" ]; then
if [ "$UPDATE" = "no" ]; then
# package is being removed.
# stop and disable the unit.
echo "Stopping systemd service ${_srv}..."
systemctl stop ${_srv} >/dev/null 2>&1 || :
echo "Disabling systemd service ${_srv}..."
systemctl --no-reload disable ${_srv} >/dev/null 2>&1 || :
else
# Package update, just disable the unit.
echo "Disabling systemd service ${_srv}..."
systemctl --no-reload disable ${_srv} >/dev/null 2>&1 || :
fi
else
if [ "$UPDATE" = "no" ]; then
# package is being installed.
# enable (but don't start) the unit by default.
echo "Enabling systemd service ${_srv}..."
systemctl enable ${_srv} >/dev/null 2>&1 || :
if [ -n "$systemd_booted" ]; then
# reload systemd if running.
systemctl daemon-reload >/dev/null 2>&1 || :
fi
cat <<_EOF
==========================================================================
The service "${_srv}" has been enabled by default,
that means that it will be started in next boot. To start it immediately,
execute the following command (as root):
$ systemctl start ${_srv}
And to stop it:
$ systemctl stop ${_srv}
Refer to the systemd documentation if more information is required.
==========================================================================
_EOF
else
# Enable the unit in case it wasn't added.
systemctl enable ${_srv} >/dev/null 2>&1 || :
# package is being updated.
if [ -n "$system_booted" ]; then
# reload systemd if running.
systemctl daemon-reload >/dev/null 2>&1 || :
fi
if [ -n "$restart" ]; then
# try restarting package service.
systemctl try-restart ${_srv} >/dev/null 2>&1 || :
else
echo "systemd ${_srv} service must be restarted manually!"
fi
fi
fi
shift; shift
done
if [ "$TARGET" = "pre-remove" ]; then
# Unload the modules specified in systemd_modules files.
for f in ${systemd_modules}; do
for j in $(cat usr/lib/modules-load.d/${f}); do
modprobe -rq ${j} || :
done
done
else
# Create stuff specified in systemd_tmpfiles files.
for f in ${systemd_tmpfiles}; do
if [ "$PKGNAME" = "systemd" -a "$f" = "systemd.conf" ]; then
# This file is only meant to be run at boot-time.
continue
fi
systemd-tmpfiles --create ${f} || :
done
# Load modules specified in systemd_modules files.
for f in ${systemd_modules}; do
for j in $(cat usr/lib/modules-load.d/${f}); do
modprobe -q ${j} || :
done
done
fi
;;
*)
exit 1
;;
esac
exit 0