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# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/systemd.eclass,v 1.9 2011/09/17 13:48:21 mgorny Exp $
# @ECLASS: systemd.eclass
# @MAINTAINER:
# mgorny@gentoo.org
# @BLURB: helper functions to install systemd units
# @DESCRIPTION:
# This eclass provides a set of functions to install unit files for
# sys-apps/systemd within ebuilds.
# @EXAMPLE:
#
# @CODE
# inherit autotools-utils systemd
#
# src_configure() {
# local myeconfargs=(
# --enable-foo
# --disable-bar
# )
#
# systemd_to_myeconfargs
# autotools-utils_src_configure
# }
# @CODE
case ${EAPI:-0} in
0|1|2|3|4) ;;
*) die "${ECLASS}.eclass API in EAPI ${EAPI} not yet established."
esac
# @FUNCTION: _systemd_get_unitdir
# @INTERNAL
# @DESCRIPTION:
# Get unprefixed unitdir.
_systemd_get_unitdir() {
echo -n /lib/systemd/system
}
# @FUNCTION: systemd_get_unitdir
# @DESCRIPTION:
# Output the path for the systemd unit directory (not including ${D}).
# This function always succeeds, even if systemd is not installed.
systemd_get_unitdir() {
has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
debug-print-function ${FUNCNAME} "${@}"
echo -n "${EPREFIX}$(_systemd_get_unitdir)"
}
# @FUNCTION: systemd_dounit
# @USAGE: unit1 [...]
# @DESCRIPTION:
# Install systemd unit(s). Uses doins, thus it is fatal in EAPI 4
# and non-fatal in earlier EAPIs.
systemd_dounit() {
debug-print-function ${FUNCNAME} "${@}"
(
insinto "$(_systemd_get_unitdir)"
doins "${@}"
)
}
# @FUNCTION: systemd_newunit
# @USAGE: oldname newname
# @DESCRIPTION:
# Install systemd unit with a new name. Uses newins, thus it is fatal
# in EAPI 4 and non-fatal in earlier EAPIs.
systemd_newunit() {
debug-print-function ${FUNCNAME} "${@}"
(
insinto "$(_systemd_get_unitdir)"
newins "${@}"
)
}
# @FUNCTION: systemd_dotmpfilesd
# @USAGE: tmpfilesd1 [...]
# @DESCRIPTION:
# Install systemd tmpfiles.d files. Uses doins, thus it is fatal
# in EAPI 4 and non-fatal in earlier EAPIs.
systemd_dotmpfilesd() {
debug-print-function ${FUNCNAME} "${@}"
(
insinto /usr/lib/tmpfiles.d/
doins "${@}"
)
}
# @FUNCTION: systemd_enable_service
# @USAGE: target service
# @DESCRIPTION:
# Enable service in desired target, e.g. install a symlink for it.
# Uses dosym, thus it is fatal in EAPI 4 and non-fatal in earlier
# EAPIs.
systemd_enable_service() {
debug-print-function ${FUNCNAME} "${@}"
[[ ${#} -eq 2 ]] || die "Synopsis: systemd_enable_service target service"
local target=${1}
local service=${2}
local ud=$(_systemd_get_unitdir)
dodir "${ud}"/"${target}".wants && \
dosym ../"${service}" "${ud}"/"${target}".wants
}
# @FUNCTION: systemd_with_unitdir
# @USAGE: [configure option]
# @DESCRIPTION:
# Output '--with-systemdsystemunitdir' as expected by systemd-aware configure
# scripts. This function always succeeds. Its output may be quoted in order
# to preserve whitespace in paths. systemd_to_myeconfargs() is preferred over
# this function.
#
# If upstream does use invalid configure option to handle installing systemd
# units (e.g. `--with-systemdunitdir'), you can pass the 'suffix' as an optional
# argument to this function (`$(systemd_with_unitdir systemdunitdir)'). Please
# remember to report a bug upstream as well.
systemd_with_unitdir() {
debug-print-function ${FUNCNAME} "${@}"
local optname=${1:-systemdsystemunitdir}
echo -n --with-${optname}="$(systemd_get_unitdir)"
}
# @FUNCTION: systemd_to_myeconfargs
# @DESCRIPTION:
# Add '--with-systemdsystemunitdir' as expected by systemd-aware configure
# scripts to the myeconfargs variable used by autotools-utils eclass. Handles
# quoting automatically.
systemd_to_myeconfargs() {
debug-print-function ${FUNCNAME} "${@}"
myeconfargs=(
"${myeconfargs[@]}"
--with-systemdsystemunitdir="$(systemd_get_unitdir)"
)
}
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