mariadb: re-package configure files

There are 3 configure files under /etc/my.cnf.d:

client.cnf: options for client library
mysql-clients.cnf: options for MariaDB tools such as mysqladmin, etc
server.cnf: options for server

They are packaged to mariadb-leftover at this moment. That is not correct.
Split them into sub-packages:
client.cnf          --> libmysqlclient
mysql-clients.cnf   --> mariadb-client
server.cnf          --> mariadb-server

Make these files as configure file by CONFFILES and update global
configure file my.cnf to include /etc/my.cnf.d as well.

Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-oe/recipes-support/mysql/mariadb.inc

@@ -135,7 +135,9 @@ PACKAGES = "${PN}-dbg ${PN} \
     libmysqlclient-r libmysqlclient-r-dev libmysqlclient-r-staticdev libmysqlclient-r-dbg \
     libmysqlclient libmysqlclient-dev libmysqlclient-staticdev libmysqlclient-dbg \
     libmysqld libmysqld-dev ${PN}-client ${PN}-server ${PN}-leftovers"
-CONFFILES_${PN}-server += "${sysconfdir}/my.cnf"
+CONFFILES_${PN}-server += "${sysconfdir}/my.cnf ${sysconfdir}/my.cnf.d/server.cnf"
+CONFFILES_${PN}-client += "${sysconfdir}/my.cnf.d/mysql-clients.cnf"
+CONFFILES_libmysqlclient += "${sysconfdir}/my.cnf.d/client.cnf"
 
 FILES_${PN} = " "
 RDEPENDS_${PN} = "${PN}-client ${PN}-server"
@@ -155,7 +157,8 @@ RDEPENDS_${PN}-leftovers = "perl perl-module-cwd perl-module-benchmark perl-modu
     perl-module-io-socket-inet perl-module-io-select"
 
 FILES_libmysqlclient = "\
-    ${libdir}/libmysqlclient.so.*"
+    ${libdir}/libmysqlclient.so.* \
+    ${sysconfdir}/my.cnf.d/client.cnf"
 FILES_libmysqlclient-dev = " \
     ${includedir}/mysql/ \
     ${libdir}/libmysqlclient.so \
@@ -200,7 +203,8 @@ FILES_${PN}-client = "\
     ${bindir}/mysqlshow \
     ${bindir}/mysqlslap \
     ${bindir}/mysqltest_embedded \
-    ${libexecdir}/mysqlmanager"
+    ${libexecdir}/mysqlmanager \
+    ${sysconfdir}/my.cnf.d/mysql-clients.cnf"
 
 FILES_${PN}-server = "\
     ${bindir}/comp_err \
@@ -250,6 +254,7 @@ FILES_${PN}-server = "\
     ${localstatedir}/mysql/ \
     ${sysconfdir}/init.d \
     ${sysconfdir}/my.cnf \
+    ${sysconfdir}/my.cnf.d/server.cnf \
     ${sysconfdir}/tmpfiles.d"
 
 DESCRIPTION_${PN}-leftovers = "unpackaged and probably unneeded files for ${PN}"

meta-oe/recipes-support/mysql/mariadb/my.cnf

@@ -20,3 +20,7 @@ ignore-builtin-innodb
 default-storage-engine				= myisam
 bind-address					= localhost
 
+#
+# include all files from the config directory
+#
+!includedir /etc/my.cnf.d