From: Frank Brehm <frank@brehm-online.com>
Date: Tue, 7 Nov 2017 23:17:50 +0000 (+0100)
Subject: saving uncommitted changes in /etc prior to emerge run
X-Git-Url: https://git.uhu-banane.org/?a=commitdiff_plain;h=1b5034b7cd601dd70876ec4838fe7e9602700e74;p=config%2Fbruni%2Fetc.git

saving uncommitted changes in /etc prior to emerge run
---

diff --git a/init.d/mysql b/init.d/mysql
index ac94a9dd..f6ad5249 100755
--- a/init.d/mysql
+++ b/init.d/mysql
@@ -1,8 +1,12 @@
 #!/sbin/openrc-run
-# Copyright 1999-2016 Gentoo Foundation
+# Copyright 1999-2017 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
 extra_commands="checkconfig"
+extra_stopped_commands="bootstrap_galera"
+
+description_checkconfig="Verify the server's configuration"
+description_boostrap_galera="Start a new Galera cluster with this server as the initial node"
 
 depend() {
 	use net.lo
@@ -11,7 +15,7 @@ depend() {
 }
 
 get_config() {
-	my_print_defaults --config-file="$1" mysqld |
+	my_print_defaults --defaults-file="$1" mysqld server mariadb |
 	sed -n -e "s/^--$2=//p"
 }
 
@@ -24,6 +28,20 @@ mysql_svcname() {
 	echo "${SVCNAME}${ebextra}"
 }
 
+stringContain() { [ -z "${2##*$1*}" ] && [ -z "$1" -o -n "$2" ]; }
+
+bootstrap_galera() {
+	MY_ARGS="--wsrep-new-cluster ${MY_ARGS}"
+	mark_service_starting
+	if start ; then
+		mark_service_started
+		return 0
+	else
+		mark_service_stopped
+		return 1
+	fi
+}
+
 start() {
 	# Check for old conf.d variables that mean migration was not yet done.
 	set | egrep -sq '^(mysql_slot_|MYSQL_BLOG_PID_FILE|STOPTIMEOUT)'
@@ -38,7 +56,9 @@ start() {
 	fi
 
 	# Check the config or die
-	checkconfig || return 1
+	if [ ${RC_CMD} != "restart" ] ; then
+		checkconfig || return 1
+	fi
 
 	# Now we can startup
 	ebegin "Starting $(mysql_svcname)"
@@ -52,33 +72,41 @@ start() {
 
 	# tail -n1 is critical as these we only want the last instance of the option
 	local basedir=$(get_config "${MY_CNF}" basedir | tail -n1)
-	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)
+	local wsrep="$(get_config "${MY_CNF}" 'wsrep[_-]on' | tail -n1 | awk '{print tolower($0)}')"
+	local wsrep_new=$(get_config "${MY_CNF}" 'wsrep-new-cluster' | 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 \`${MY_CNF}'"
-		return 1
-	fi
+	# Galera: Only check datadir if not starting a new cluster and galera is enabled
+	# wsrep_on is not on or wsrep-new-cluster exists in the config or MY_ARGS
+	[ "${wsrep}" = "1" ] && wsrep="on"
+	if [ "${wsrep}" != "on" ] || [ -n "${wsrep_new}" ] || stringContain 'wsrep-new-cluster' "${MY_ARGS}" ; then
 
-	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 | head -n1))
-		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..."
+		local datadir=$(get_config "${MY_CNF}" datadir | tail -n1)
+		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 | head -n1))
+			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
-		return 1
 	fi
 
 	local piddir="${pidfile%/*}"
@@ -117,6 +145,10 @@ start() {
 }
 
 stop() {
+	if [ ${RC_CMD} = "restart" ] ; then
+		checkconfig || return 1
+	fi
+
 	ebegin "Stopping $(mysql_svcname)"
 
 	local pidfile="$(get_options pidfile)"
diff --git a/init.d/mysql-s6 b/init.d/mysql-s6
index 74ff34b0..3fa54e94 100755
--- a/init.d/mysql-s6
+++ b/init.d/mysql-s6
@@ -1,5 +1,5 @@
 #!/sbin/openrc-run
-# Copyright 1999-2016 Gentoo Foundation
+# Copyright 1999-2017 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
 depend() {
@@ -9,7 +9,7 @@ depend() {
 }
 
 get_config() {
-	my_print_defaults --config-file="$1" mysqld |
+	my_print_defaults --defaults-file="$1" mysqld server mariadb |
 	sed -n -e "s/^--$2=//p"
 }
 
@@ -22,7 +22,26 @@ mysql_svcname() {
 	echo "${svc_name}${ebextra}"
 }
 
+stringContain() { [ -z "${2##*$1*}" ] && [ -z "$1" -o -n "$2" ]; }
+
+bootstrap_galera() {
+	MY_ARGS="--wsrep-new-cluster ${MY_ARGS}"
+	mark_service_starting
+	if start_pre && start ; then
+		mark_service_started
+		return 0
+	else
+		mark_service_stopped
+		return 1
+	fi
+}
+
+
 extra_commands="checkconfig"
+extra_stopped_commands="bootstrap_galera"
+
+description_checkconfig="Verify the server's configuration"
+description_boostrap_galera="Start a new Galera cluster with this server as the initial node"
 supervisor=s6
 name=$(mysql_svcname)
 s6_service_timeout_stop="$((1000*${STOP_TIMEOUT:-120}))"
@@ -32,7 +51,9 @@ s6_service_path=/var/svc.d/${svc_name}
 
 start_pre() {
 	# Check the config or die
-	checkconfig || return 1
+	if [ ${RC_CMD} != "restart" ] ; then
+		checkconfig || return 1
+	fi
 
 	MY_CNF="${MY_CNF:-/etc/${svc_name}/my.cnf}"
 
@@ -43,33 +64,41 @@ start_pre() {
 
 	# tail -n1 is critical as these we only want the last instance of the option
 	local basedir=$(get_config "${MY_CNF}" basedir | tail -n1)
-	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)
+	local wsrep="$(get_config "${MY_CNF}" 'wsrep[_-]on' | tail -n1 | awk '{print tolower($0)}')"
+	local wsrep_new=$(get_config "${MY_CNF}" 'wsrep-new-cluster' | 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 \`${MY_CNF}'"
-		return 1
-	fi
+	# Galera: Only check datadir if not starting a new cluster and galera is enabled
+	# wsrep_on is not on or wsrep-new-cluster exists in the config or MY_ARGS
+	[ "${wsrep}" = "1" ] && wsrep="on"
+	if [ "${wsrep}" != "on" ] || [ -n "${wsrep_new}" ] || stringContain 'wsrep-new-cluster' "${MY_ARGS}" ; then
 
-	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 | head -n1))
-		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..."
+		local datadir=$(get_config "${MY_CNF}" datadir | tail -n1)
+		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 | head -n1))
+			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
-		return 1
 	fi
 
 	local piddir="${pidfile%/*}"
@@ -124,5 +153,11 @@ checkconfig() {
 	eend $? "${svc_name} config check failed"
 }
 
+stop_pre() {
+	if [ ${RC_CMD} = "restart" ] ; then
+		checkconfig || return 1
+	fi
+}
+
 # vim: filetype=gentoo-init-d sw=2 ts=2 sts=2 noet:
 
diff --git a/init.d/mysql-supervise b/init.d/mysql-supervise
new file mode 100755
index 00000000..5341a6a1
--- /dev/null
+++ b/init.d/mysql-supervise
@@ -0,0 +1,180 @@
+#!/sbin/openrc-run
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+extra_commands="checkconfig"
+extra_stopped_commands="boostrap_galera"
+
+description_checkconfig="Verify the server's configuration"
+description_boostrap_galera="Start a new Galera cluster with this server as the initial node"
+
+depend() {
+	use net.lo
+	# localmount needed for $basedir
+	need localmount
+}
+
+get_config() {
+	my_print_defaults --defaults-file="$1" mysqld server mariadb |
+	sed -n -e "s/^--$2=//p"
+}
+
+mysql_svcname() {
+	local ebextra=
+	case "${SVCNAME}" in
+		mysql*) ;;
+		*) ebextra=" (mysql)" ;;
+	esac
+	echo "${SVCNAME}${ebextra}"
+}
+
+stringContain() { [ -z "${2##*$1*}" ] && [ -z "$1" -o -n "$2" ]; }
+
+bootstrap_galera() {
+	MY_ARGS="--wsrep-new-cluster ${MY_ARGS}"
+	mark_service_starting
+	if start ; then
+		mark_service_started
+		return 0
+	else
+		mark_service_stopped
+		return 1
+	fi
+}
+
+start() {
+	# Check for old conf.d variables that mean migration was not yet done.
+	set | egrep -sq '^(mysql_slot_|MYSQL_BLOG_PID_FILE|STOPTIMEOUT)'
+	rc=$?
+	# Yes, MYSQL_INIT_I_KNOW_WHAT_I_AM_DOING is a hidden variable.
+	# It does have a use in testing, as it is possible to build a config file
+	# that works with both the old and new init scripts simulateously.
+	if [ "${rc}" = 0 -a -z "${MYSQL_INIT_I_KNOW_WHAT_I_AM_DOING}" ]; then
+		eerror "You have not updated your conf.d for the new mysql-init-scripts-2 revamp."
+		eerror "Not proceeding because it may be dangerous."
+		return 1
+	fi
+
+	# Check the config or die
+	if [ ${RC_CMD} != "restart" ] ; then
+		checkconfig || return 1
+	fi
+
+	# Now we can startup
+	ebegin "Starting $(mysql_svcname)"
+
+	MY_CNF="${MY_CNF:-/etc/${SVCNAME}/my.cnf}"
+
+	if [ ! -r "${MY_CNF}" ] ; then
+		eerror "Cannot read the configuration file \`${MY_CNF}'"
+		return 1
+	fi
+
+	# tail -n1 is critical as these we only want the last instance of the option
+	local basedir=$(get_config "${MY_CNF}" basedir | tail -n1)
+	local pidfile=$(get_config "${MY_CNF}" pid-file | tail -n1)
+	local socket=$(get_config "${MY_CNF}" socket | tail -n1)
+	local chroot=$(get_config "${MY_CNF}" chroot | tail -n1)
+	local wsrep="$(get_config "${MY_CNF}" 'wsrep[_-]on' | tail -n1 | awk '{print tolower($0)}')"
+	local wsrep_new=$(get_config "${MY_CNF}" 'wsrep-new-cluster' | tail -n1)
+
+	if [ -n "${chroot}" ] ; then
+		socket="${chroot}/${socket}"
+		pidfile="${chroot}/${pidfile}"
+	fi
+
+	# Galera: Only check datadir if not starting a new cluster and galera is enabled
+	# wsrep_on is not on or wsrep-new-cluster exists in the config or MY_ARGS
+	[ "${wsrep}" = "1" ] && wsrep="on"
+	if [ "${wsrep}" != "on" ] || [ -n "${wsrep_new}" ] || stringContain 'wsrep-new-cluster' "${MY_ARGS}" ; then
+
+		local datadir=$(get_config "${MY_CNF}" datadir | tail -n1)
+		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 | head -n1))
+			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
+	fi
+
+	local piddir="${pidfile%/*}"
+	checkpath -d --owner mysql:mysql --mode 0755 "$piddir"
+	rc=$?
+	if [ $rc -ne 0 ]; then
+		eerror "Directory $piddir for pidfile does not exist and cannot be created"
+		return 1
+	fi
+
+	local startup_timeout=${STARTUP_TIMEOUT:-900}
+#	local startup_early_timeout=${STARTUP_EARLY_TIMEOUT:-1000}
+	local tmpnice="${NICE:+"--nicelevel "}${NICE}"
+	local tmpionice="${IONICE:+"--ionice "}${IONICE}"
+	supervise-daemon \
+		${DEBUG:+"--verbose"} \
+		--pidfile "/run/${SVCNAME}.pid" \
+		${tmpnice} \
+		${tmpionice} \
+		--start \
+		"${basedir}"/sbin/mysqld \
+		-- --defaults-file="${MY_CNF}" ${MY_ARGS}
+	local ret=$?
+	if [ ${ret} -ne 0 ] ; then
+		eend ${ret}
+		return ${ret}
+	fi
+
+	ewaitfile ${startup_timeout} "${socket}"
+	eend $? || return 1
+}
+
+stop() {
+	if [ ${RC_CMD} = "restart" ] ; then
+		checkconfig || return 1
+	fi
+
+	ebegin "Stopping $(mysql_svcname)"
+
+	supervise-daemon \
+		${DEBUG:+"--verbose"} \
+		--stop \
+		--pidfile "/run/${SVCNAME}.pid"
+	eend $?
+}
+
+checkconfig() {
+	local my_cnf="${MY_CNF:-/etc/${SVCNAME}/my.cnf}"
+	local basedir=$(get_config "${my_cnf}" basedir | tail -n1)
+	local svc_name=$(mysql_svcname)
+	ebegin "Checking mysqld configuration for ${svc_name}"
+
+	if [ ${RC_CMD} = "checkconfig" ] ; then
+		# We are calling checkconfig specifically.  Print warnings regardless.
+		"${basedir}"/sbin/mysqld --defaults-file="${my_cnf}" --help --verbose > /dev/null
+	else
+		# Suppress output to check the return value
+		"${basedir}"/sbin/mysqld --defaults-file="${my_cnf}" --help --verbose > /dev/null 2>&1
+
+		# 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 --defaults-file="${my_cnf}" --help --verbose > /dev/null
+		fi
+	fi
+
+	eend $? "${svc_name} config check failed"
+}
+
+# vim: filetype=gentoo-init-d sw=2 ts=2 sts=2 noet:
+