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systemd.bbclass: make easier handle service enabling

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This generates the postinst/prerm/postrm routines for the package
specified in SYSTEMD_PACKAGES avoding code duplication and
centralizing the handling of it for easy maintainence work.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
This commit is contained in:
Otavio Salvador 2011-11-04 17:25:59 +00:00 committed by Koen Kooi
parent 79f35231a3
commit 39ce6e1fbb
1 changed files with 78 additions and 0 deletions
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SYSTEMDPN ?= "${PN}"
DEPENDS_append = " systemd-systemctl-native"
RDEPENDS_${SYSTEMDPN}_append = " systemd"
systemd_postinst() {
OPTS=""
if [ -n "$D" ]; then
OPTS="--root=$D"
fi
systemctl $OPTS enable ${SYSTEMD_SERVICE}
if [ -z "$D" ]; then
systemctl start ${SYSTEMD_SERVICE}
fi
}
systemd_prerm() {
if [ -z "$D" ]; then
systemctl stop ${SYSTEMD_SERVICE}
fi
}
systemd_postrm() {
systemctl disable ${SYSTEMD_SERVICE}
}
def systemd_after_parse(d):
if bb.data.getVar('SYSTEMD_PACKAGES', d) == None:
if bb.data.getVar('SYSTEMD_SERVICE', d) == None:
raise bb.build.FuncFailed, "%s inherits systemd but doesn't set SYSTEMD_SERVICE" % bb.data.getVar('FILE', d)
python __anonymous() {
systemd_after_parse(d)
}
python populate_packages_prepend () {
def systemd_package(pkg):
bb.debug(1, 'adding systemd calls to postinst/postrm for %s' % pkg)
localdata = bb.data.createCopy(d)
overrides = bb.data.getVar("OVERRIDES", localdata, 1)
bb.data.setVar("OVERRIDES", "%s:%s" % (pkg, overrides), localdata)
bb.data.update_data(localdata)
"""
systemd postinst is appended here because pkg_postinst may require to
execute on the target. Not doing so may cause systemd postinst invoked
twice to cause unwanted warnings.
"""
postinst = bb.data.getVar('pkg_postinst', localdata, 1)
if not postinst:
postinst = '#!/bin/sh\n'
postinst += bb.data.getVar('systemd_postinst', localdata, 1)
bb.data.setVar('pkg_postinst_%s' % pkg, postinst, d)
prerm = bb.data.getVar('pkg_prerm', localdata, 1)
if not prerm:
prerm = '#!/bin/sh\n'
prerm += bb.data.getVar('systemd_prerm', localdata, 1)
bb.data.setVar('pkg_prerm_%s' % pkg, prerm, d)
postrm = bb.data.getVar('pkg_postrm', localdata, 1)
if not postrm:
postrm = '#!/bin/sh\n'
postrm += bb.data.getVar('systemd_postrm', localdata, 1)
bb.data.setVar('pkg_postrm_%s' % pkg, postrm, d)
pkgs = bb.data.getVar('SYSTEMD_PACKAGES', d, 1)
if pkgs == None:
pkgs = bb.data.getVar('SYSTEMDPN', d, 1)
packages = (bb.data.getVar('PACKAGES', d, 1) or "").split()
if not pkgs in packages and packages != []:
pkgs = packages[0]
for pkg in pkgs.split():
systemd_package(pkg)
}