dev-util/buildbot-worker: Make the init script multi-instance capable

Use the same method as the buildbot master init script for multiple instances
on the same host.
Add RUNTIME_PYTHON variable (optional) to the conf.d to specify the desired
python to run it from.

Package-Manager: Portage-2.3.6_p65, Repoman-2.3.2_p133

1 files changed, 54 insertions, 6 deletions

diff --git a/dev-util/buildbot-worker/buildbot-worker-9999.ebuild b/dev-util/buildbot-worker/buildbot-worker-9999.ebuild
index e756aeaa6cc3..6c1b8bf74aaf 100644
--- a/dev-util/buildbot-worker/buildbot-worker-9999.ebuild
+++ b/dev-util/buildbot-worker/buildbot-worker-9999.ebuild
@@ -45,11 +45,11 @@ pkg_setup() {
 
 	DOC_CONTENTS="The \"buildbot\" user and the \"buildbot_worker\" init script has been added
 		to support starting buildbot_worker through Gentoo's init system. To use this,
-		set up your build worker following the documentation, make sure the
+		execute \"emerge --config =${CATEGORY}/${PF}\" to create a new instance.
+		Set up your build worker following the documentation, make sure the
 		resulting directories are owned by the \"buildbot\" user and point
-		\"${ROOT}etc/conf.d/buildbot_worker\" at the right location.  The scripts can
-		run as a different user if desired. If you need to run more than one
-		build worker, just copy the scripts."
+		\"${ROOT}etc/conf.d/buildbot_worker.myinstance\" at the right location.
+		The scripts can	run as a different user if desired."
 }
 
 python_test() {
@@ -63,12 +63,60 @@ python_install_all() {
 
 	doman docs/buildbot-worker.1
 
-	newconfd "${FILESDIR}/buildbot_worker.confd" buildbot_worker
-	newinitd "${FILESDIR}/buildbot_worker.initd" buildbot_worker
+	newconfd "${FILESDIR}/buildbot_worker.confd2" buildbot_worker
+	newinitd "${FILESDIR}/buildbot_worker.initd2" buildbot_worker
 
 	readme.gentoo_create_doc
 }
 
 pkg_postinst() {
 	readme.gentoo_print_elog
+
+	if [[ -n ${REPLACING_VERSIONS} ]]; then
+		ewarn
+		ewarn "Starting with buildbot-worker-0.9.10-r1, more than one instance of a buildbot_worker"
+		ewarn "can be run simultaneously. Note that \"BASEDIR\" in the buildbot_worker configuration file"
+		ewarn "is now the common base directory for all instances. If you are migrating from an older"
+		ewarn "version, make sure that you copy the current contents of \"BASEDIR\" to a subdirectory."
+		ewarn "The name of the subdirectory corresponds to the name of the buildbot_worker instance."
+		ewarn "In order to start the service running OpenRC-based systems need to link to the init file:"
+		ewarn "    ln --symbolic --relative /etc/init.d/buildbot_worker /etc/init.d/buildbot_worker.myinstance"
+		ewarn "    rc-update add buildbot_worker.myinstance default"
+		ewarn "    /etc/init.d/buildbot_worker.myinstance start"
+		ewarn "Systems using systemd can do the following:"
+		ewarn "    systemctl enable buildbot_worker@myinstance.service"
+		ewarn "    systemctl enable buildbot_worker.target"
+		ewarn "    systemctl start buildbot_worker.target"
+	fi
+}
+
+pkg_config() {
+	local buildworker_path="/var/lib/buildbot_worker"
+	einfo "This will prepare a new buildbot_worker instance in ${buildworker_path}."
+	einfo "Press Control-C to abort."
+
+	einfo "Enter the name for the new instance: "
+	read instance_name
+	[[ -z "${instance_name}" ]] && die "Invalid instance name"
+
+	local instance_path="${buildworker_path}/${instance_name}"
+	if [[ -e "${instance_path}" ]]; then
+		eerror "The instance with the specified name already exists:"
+		eerror "${instance_path}"
+		die "Instance already exists"
+	fi
+
+	local buildbot="/usr/bin/buildbot"
+	if [[ ! -d "${buildworker_path}" ]]; then
+		mkdir --parents "${buildworker_path}" || die "Unable to create directory ${buildworker_path}"
+	fi
+	"${buildbot}" create-master "${instance_path}" &>/dev/null || die "Creating instance failed"
+	chown --recursive buildbot "${instance_path}" || die "Setting permissions for instance failed"
+	mv "${instance_path}/master.cfg.sample" "${instance_path}/master.cfg" \
+		|| die "Moving sample configuration failed"
+	ln --symbolic --relative "/etc/init.d/buildbot_worker" "/etc/init.d/buildbot_worker.${instance_name}" \
+		|| die "Unable to create link to init file"
+
+	einfo "Successfully created a buildbot_worker instance at ${instance_path}."
+	einfo "To change the default settings edit the buildbot.tac file in this directory."
 }