[mysql-init-scripts] First attempt at s6 integration which OpenRC now supports. Still need to come up with a way to wait until mysql is ready

4 files changed, 196 insertions, 0 deletions

diff --git a/dev-db/mysql-init-scripts/files/init.d-s6 b/dev-db/mysql-init-scripts/files/init.d-s6
new file mode 100644
index 0000000..4c2424f
--- /dev/null
+++ b/dev-db/mysql-init-scripts/files/init.d-s6
@@ -0,0 +1,98 @@
+#!/sbin/openrc-run
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: $
+
+depend() {
+	use net.lo
+	# localmount needed for $basedir
+	need localmount s6-svscan
+}
+
+get_config() {
+	my_print_defaults --config-file="$1" mysqld |
+	sed -n -e "s/^--$2=//p"
+}
+
+mysql_svcname() {
+	local ebextra=
+	case "${SVCNAME}" in
+		mysql*) ;;
+		*) ebextra=" (mysql)" ;;
+	esac
+	echo "${SVCNAME}${ebextra}"
+}
+
+extra_commands="checkconfig"
+supervisor=s6
+name=$(mysql_svcname)
+#s6_svwait_options_start="-U -t $((1000*${STARTUP_EARLY_TIMEOUT:-1000}))"
+
+start_pre() {
+	# Check the config or die
+	checkconfig || return 1
+
+	MY_CNF="${MY_CNF:-/etc/${SVCNAME}/my.cnf}"
+
+	if [ ! -r "${MY_CNF}" ] ; then
+		eerror "Cannot read the configuration file \`${MY_CNF}'"
+		return 1
+	fi
+
+	# tail -n1 is critical as these we only want the last instance of the option
+	local datadir=$(get_config "${MY_CNF}" datadir | tail -n1)
+	local pidfile=$(get_config "${MY_CNF}" pid-file | tail -n1)
+	local socket=$(get_config "${MY_CNF}" socket | tail -n1)
+	local chroot=$(get_config "${MY_CNF}" chroot | tail -n1)
+
+	if [ -n "${chroot}" ] ; then
+		socket="${chroot}/${socket}"
+		pidfile="${chroot}/${pidfile}"
+	fi
+
+	if [ ! -d "${datadir}" ] ; then
+		eerror "MySQL datadir \`${datadir}' is empty or invalid"
+		eerror "Please check your config file \`${MY_CNF}'"
+		return 1
+	fi
+
+	if [ ! -d "${datadir}"/mysql ] ; then
+		# find which package is installed to report an error
+		local EROOT=$(portageq envvar EROOT)
+		local DBPKG_P=$(portageq match ${EROOT} $(portageq expand_virtual ${EROOT} virtual/mysql))
+		if [[ -z ${DBPKG_P} ]] ; then
+			eerror "You don't appear to have a server package installed yet."
+		else
+			eerror "You don't appear to have the mysql database installed yet."
+			eerror "Please run \`emerge --config =${DBPKG_P}\` to have this done..."
+		fi
+		return 1
+	fi
+
+	local piddir="${pidfile%/*}"
+	checkpath -d --owner mysql:mysql --mode 0755 "$piddir"
+	rc=$?
+	if [ $rc -ne 0 ]; then
+		eerror "Directory $piddir for pidfile does not exist and cannot be created"
+		return 1
+	fi
+}
+
+checkconfig() {
+	local basedir=$(get_config "${MY_CNF}" basedir | tail -n1)
+	ebegin "Checking mysqld configuration"
+
+	# Suppress output to check the return value
+	"${basedir}"/sbin/mysqld --help --verbose &> /dev/null
+
+	# If the above command does not return 0,
+	# then there is an error to echo to the user
+	if [ $? -ne 0 ] ; then
+		"${basedir}"/sbin/mysqld --help --verbose > /dev/null
+	fi
+
+	eend $? "MySQL config check failed"
+}
+
+# vim: filetype=gentoo-init-d sw=2 ts=2 sts=2 noet:
+
diff --git a/dev-db/mysql-init-scripts/files/run-s6 b/dev-db/mysql-init-scripts/files/run-s6
new file mode 100644
index 0000000..64a89c7
--- /dev/null
+++ b/dev-db/mysql-init-scripts/files/run-s6
@@ -0,0 +1,18 @@
+#!/bin/sh
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: $
+
+get_config() {
+	my_print_defaults --config-file="$1" mysqld |
+	sed -n -e "s/^--$2=//p"
+}
+
+SVCNAME=$(cd `dirname $0` && pwd | awk -F/ '{ print $NF }' )
+
+source "${ROOT:-/}etc/conf.d/${SVCNAME}"
+
+MY_CNF="${MY_CNF:-/etc/${SVCNAME}/my.cnf}"
+
+basedir=$(get_config "${MY_CNF}" basedir | tail -n1)
+exec s6-notifywhenup -t ${STARTUP_TIMEOUT:-900} "${basedir}"/sbin/mysqld --defaults-file="${MY_CNF}" ${MY_ARGS}
diff --git a/dev-db/mysql-init-scripts/metadata.xml b/dev-db/mysql-init-scripts/metadata.xml
index abf3529..669c23b 100644
--- a/dev-db/mysql-init-scripts/metadata.xml
+++ b/dev-db/mysql-init-scripts/metadata.xml
@@ -2,4 +2,7 @@
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
 	<herd>mysql</herd>
+	<use>
+		<flag name="s6">Install an OpenRC service that monitors using <package>sys-apps/s6</package> instead of using start-stop-daemon</flag>
+	</use>
 </pkgmetadata>
diff --git a/dev-db/mysql-init-scripts/mysql-init-scripts-2.1_alpha1.ebuild b/dev-db/mysql-init-scripts/mysql-init-scripts-2.1_alpha1.ebuild
new file mode 100644
index 0000000..232246d
--- /dev/null
+++ b/dev-db/mysql-init-scripts/mysql-init-scripts-2.1_alpha1.ebuild
@@ -0,0 +1,77 @@
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: $
+
+EAPI=5
+
+inherit systemd
+
+DESCRIPTION="Gentoo MySQL init scripts."
+HOMEPAGE="http://www.gentoo.org/"
+SRC_URI=""
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~sparc-fbsd ~x86-fbsd"
+IUSE="s6"
+
+DEPEND=""
+# This _will_ break with MySQL 5.0, 4.x, 3.x
+# It also NEEDS openrc for the save_options/get_options builtins.
+RDEPEND="
+	!<dev-db/mysql-5.1
+	s6? ( >=sys-apps/openrc-0.16 sys-apps/s6 )
+	"
+# Need to set S due to PMS saying we need it existing, but no SRC_URI
+S=${WORKDIR}
+
+src_install() {
+	newconfd "${FILESDIR}/conf.d-2.0" "mysql"
+	if use s6 ; then
+		newinitd "${FILESDIR}/init.d-s6" "mysql"
+		exeinto /etc/svc.d/mysql
+		newexe "${FILESDIR}/run-s6" "run"
+	else
+		newinitd "${FILESDIR}/init.d-2.0" "mysql"
+	fi
+
+	# systemd unit installation
+	exeinto /usr/libexec
+	doexe "${FILESDIR}"/mysqld-wait-ready
+	systemd_dounit "${FILESDIR}/mysqld.service"
+	systemd_newunit "${FILESDIR}/mysqld_at.service" "mysqld@.service"
+	systemd_dotmpfilesd "${FILESDIR}/mysql.conf"
+
+	insinto /etc/logrotate.d
+	newins "${FILESDIR}/logrotate.mysql" "mysql"
+}
+
+pkg_postinst() {
+	grep -sq mysql_slot "${ROOT}"/etc/conf.d/mysql
+	old_conf_present=$?
+	grep -sq get_slot_config "${ROOT}"/etc/init.d/mysql
+	old_init_present=$?
+
+	egrep -sq 'MY_CNF|MY_ARGS|(STARTUP|STOP)_TIMEOUT' "${ROOT}"/etc/conf.d/mysql
+	new_conf_present=$?
+	egrep -sq 'MY_ARGS|STOP_TIMEOUT' "${ROOT}"/etc/init.d/mysql
+	new_init_present=$?
+
+	einfo "Please note that if you are using multiple internal 'slots' in the"
+	einfo "old conf.d file, you should use multiple init files now."
+	echo old $old_conf_present $old_init_present
+	echo new $new_conf_present $new_init_present
+
+	# new scripts present
+	if [ $new_conf_present -eq 0 -a $new_init_present -eq 0 -a \
+		 $old_conf_present -eq 1 -a $old_init_present -eq 1 ]; then
+		:
+	elif [ $old_conf_present -eq 0 -a $old_init_present -eq 0 -a \
+		 $new_conf_present -eq 1 -a $new_init_present -eq 1 ]; then
+		ewarn "Old /etc/init.d/mysql and /etc/conf.d/mysql still present!"
+		ewarn "Update both of those files to the new versions!"
+	else
+		eerror "DANGER, mixed update of /etc/init.d/mysql and /etc/conf.d/mysql"
+		eerror "detected! You must update BOTH to the new versions"
+	fi
+}