Using some openrc scripts with systemd and other init systems
(C) Martin Väth (martin at mvath.de). The license of this package is the GNU Public License GPL-2. SPDX-License-Identifier: GPL-2.0-only
This script has been splitted from the squash_dir project
https://github.com/vaeth/squash_dir/
because the latter project has essentially been replaced by squashmount
https://github.com/vaeth/squashmount/
except for the openrc-wraper which is of independent interest and which will be further developed only here - the version in squash_dir is frozen. Moreover, some independent systemd init-scripts are provided here.
openrc-wrapper works only for relatively simple openrc initscripts: If the initscripts are simple enough, openrc-wrapper might even be able to start/stop them even if openrc is not installed at all (although the output might look better if openrc is installed).
The usage is extremely simple: If you have an openrc init script
/etc/init.d/SERVICE
possibly with a configuration file
/etc/conf.d/SERVICE
you just start/stop this service by calling
/bin/openrc-wrapper SERVICE start
or
/bin/openrc-wrapper SERVICE stop
respectively. Note that this does not really start/stop the service in the
sense of openrc but just executes the corresponding function of the
initscript (in an environment which somewhat emulates the openrc
environment).
In addition, if the openrc init script registered additional
COMMANDS like store/restore/... you can also use:
openrc-wrapper SERVICE COMMAND
openrc-wrapper alsasound saveopenrc-wrapper alsasound restore
A typical systemd service using an openrc initscript will contain
ExecStart=/bin/openrc-wrapper SERVICE start
and possibly also
ExecStop=/bin/openrc-wrapper SERVICE stop
Some examples are in the provided systemd/system folder.
For installation, just copy bin/* into /bin and,
at your discretion, the provided systemd initscripts systemd/system/*
into your systemd unit folder. In order to get zsh completion support,
also copy zsh/_openrc-wrapper somewhere into your zsh's $fpath.
Thus, a typical manual installation looks like this
(after you did cd into the project's directory):
cp bin/* /bin
cp systemd/system/* "`pkg-config --variable=systemdsystemunitdir systemd`"
cp zsh/* /usr/share/zsh/site-functions
(For gentoo there is an ebuild in the mv overlay which does this).