# Copyright 1999-2013 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

# @ECLASS: mysql-cmake-multilib.eclass
# @MAINTAINER:
# Maintainers:
#	- MySQL Team <mysql-bugs@gentoo.org>
#	- Robin H. Johnson <robbat2@gentoo.org>
#	- Jorge Manuel B. S. Vicetto <jmbsvicetto@gentoo.org>
# @BLURB: This eclass provides the support for cmake based mysql releases
# @DESCRIPTION:
# The mysql-cmake-multilib.eclass provides the support to build the mysql
# ebuilds using the cmake build system. This eclass provides
# the src_prepare, src_configure, src_compile and src_install
# phase hooks.

inherit flag-o-matic multilib prefix mysql-cmake cmake-multilib

#
# HELPER FUNCTIONS:
#

# @FUNCTION: mysql-cmake-multilib_disable_test
# @DESCRIPTION:
# Helper function to disable specific tests.
mysql-cmake-multilib_disable_test() {
	debug-print-function ${FUNCTION} "$@"

	local BUILD_DIR="${BUILD_DIR:-${S}}"
	mysql-cmake_disable_test "$@"
}

# @FUNCTION: configure_cmake_minimal
# @DESCRIPTION:
# Helper function to configure minimal build
configure_cmake_minimal() {
	debug-print-function ${FUNCNAME} "$@"

	mycmakeargs+=(
		-DWITHOUT_SERVER=1
		-DWITHOUT_EMBEDDED_SERVER=1
		-DENABLED_LOCAL_INFILE=1
		-DEXTRA_CHARSETS=none
		-DINSTALL_SQLBENCHDIR=
		-DWITH_SSL=system
		-DWITH_ZLIB=system
		-DWITHOUT_LIBWRAP=1
		-DWITH_READLINE=0
		-DWITH_LIBEDIT=0
		-DWITHOUT_ARCHIVE_STORAGE_ENGINE=1
		-DWITHOUT_BLACKHOLE_STORAGE_ENGINE=1
		-DWITHOUT_CSV_STORAGE_ENGINE=1
		-DWITHOUT_FEDERATED_STORAGE_ENGINE=1
		-DWITHOUT_HEAP_STORAGE_ENGINE=1
		-DWITHOUT_INNOBASE_STORAGE_ENGINE=1
		-DWITHOUT_MYISAMMRG_STORAGE_ENGINE=1
		-DWITHOUT_MYISAM_STORAGE_ENGINE=1
		-DWITHOUT_PARTITION_STORAGE_ENGINE=1
		-DWITHOUT_INNOBASE_STORAGE_ENGINE=1
		-DWITH_UNIT_TESTS=0
	)
}

# @FUNCTION: configure_cmake_standard
# @DESCRIPTION:
# Helper function to configure standard build
configure_cmake_standard() {
	debug-print-function ${FUNCNAME} "$@"

	mycmakeargs+=(
		-DENABLED_LOCAL_INFILE=1
		-DEXTRA_CHARSETS=all
		-DMYSQL_USER=mysql
		-DWITH_READLINE=0
		-DWITH_LIBEDIT=0
		-DWITH_ZLIB=system
		-DWITHOUT_LIBWRAP=1
	)

	mycmakeargs+=(
		$(cmake-utils_use_disable !static SHARED)
		$(cmake-utils_use_with debug)
		$(cmake-utils_use_with embedded EMBEDDED_SERVER)
		$(cmake-utils_use_with profiling)
		$(cmake-utils_use_enable systemtap DTRACE)
		$(cmake-utils_use_with test UNIT_TESTS)
	)

	if use static; then
		mycmakeargs+=( -DWITH_PIC=1 )
	fi

	if use ssl; then
		mycmakeargs+=( -DWITH_SSL=system )
	else
		mycmakeargs+=( -DWITH_SSL=bundled )
	fi

	if use jemalloc; then
		mycmakeargs+=( -DWITH_SAFEMALLOC=OFF )
	fi

	if use tcmalloc; then
		mycmakeargs+=( -DWITH_SAFEMALLOC=OFF )
	fi

	# Storage engines
	mycmakeargs+=(
		-DWITH_ARCHIVE_STORAGE_ENGINE=1
		-DWITH_BLACKHOLE_STORAGE_ENGINE=1
		-DWITH_CSV_STORAGE_ENGINE=1
		-DWITH_HEAP_STORAGE_ENGINE=1
		-DWITH_INNOBASE_STORAGE_ENGINE=1
		-DWITH_MYISAMMRG_STORAGE_ENGINE=1
		-DWITH_MYISAM_STORAGE_ENGINE=1
		-DWITH_PARTITION_STORAGE_ENGINE=1
		$(cmake-utils_use_with extraengine FEDERATED_STORAGE_ENGINE)
	)

	if pbxt_available ; then
		mycmakeargs+=( $(cmake-utils_use_with pbxt PBXT_STORAGE_ENGINE) )
	fi

	if [[ ${PN} == "mariadb" || ${PN} == "mariadb-galera" ]]; then
		mycmakeargs+=(
			$(mysql-cmake_use_plugin oqgraph OQGRAPH)
			$(mysql-cmake_use_plugin sphinx SPHINX)
			$(mysql-cmake_use_plugin extraengine FEDERATEDX)
			$(mysql-cmake_use_plugin tokudb TOKUDB)
			$(mysql-cmake_use_plugin pam AUTH_PAM)
		)

		if use jemalloc ; then
			mycmakeargs+=( -DWITH_JEMALLOC="system" )
		else
			mycmakeargs+=( -DWITH_JEMALLOC=no )
		fi

		if mysql_version_is_at_least 10.0.5 ; then
			# CassandraSE needs Apache Thrift which is not in portage
			# TODO: Add use and deps for Connect SE external deps
			mycmakeargs+=(
				-DWITHOUT_CASSANDRA=1 -DWITH_CASSANDRA=0
				$(mysql-cmake_use_plugin extraengine SEQUENCE)
				$(mysql-cmake_use_plugin extraengine SPIDER)
				$(mysql-cmake_use_plugin extraengine CONNECT)
				-DCONNECT_WITH_MYSQL=1
				$(cmake-utils_use xml CONNECT_WITH_LIBXML2)
				$(cmake-utils_use odbc CONNECT_WITH_ODBC)
			)
		fi
	fi

	if [[ ${PN} == "percona-server" ]]; then
		mycmakeargs+=(
			$(cmake-utils_use_with pam)
		)
	fi

	if [[ ${PN} == "mysql-cluster" ]]; then
		# TODO: This really should include the following options,
		# but the memcached package doesn't install the files it seeks.
		# -DWITH_BUNDLED_MEMCACHED=OFF
		# -DMEMCACHED_HOME=${EPREFIX}/usr
		mycmakeargs+=(
			-DWITH_BUNDLED_LIBEVENT=OFF
			$(cmake-utils_use_with java NDB_JAVA)
		)
	fi
}

#
# EBUILD FUNCTIONS
#

# @FUNCTION: mysql-cmake-multilib_src_prepare
# @DESCRIPTION:
# Apply patches to the source code and remove unneeded bundled libs.
mysql-cmake-multilib_src_prepare() {

	debug-print-function ${FUNCNAME} "$@"

	mysql-cmake_src_prepare "$@"
}

# @FUNCTION: mysql-cmake-multilib_src_configure
# @DESCRIPTION:
# Configure mysql to build the code for Gentoo respecting the use flags.
mysql-cmake-multilib_src_configure() {

	debug-print-function ${FUNCNAME} "$@"

	CMAKE_BUILD_TYPE="RelWithDebInfo"

	mycmakeargs=(
		-DCMAKE_INSTALL_PREFIX=${EPREFIX}/usr
		-DMYSQL_DATADIR=${EPREFIX}/var/lib/mysql
		-DSYSCONFDIR=${EPREFIX}/etc/mysql
		-DINSTALL_BINDIR=bin
		-DINSTALL_DOCDIR=share/doc/${P}
		-DINSTALL_DOCREADMEDIR=share/doc/${P}
		-DINSTALL_INCLUDEDIR=include/mysql
		-DINSTALL_INFODIR=share/info
		-DINSTALL_LIBDIR=@GET_LIBDIR@/mysql
		-DINSTALL_MANDIR=share/man
		-DINSTALL_MYSQLDATADIR=${EPREFIX}/var/lib/mysql
		-DINSTALL_MYSQLSHAREDIR=share/mysql
		-DINSTALL_MYSQLTESTDIR=share/mysql/mysql-test
		-DINSTALL_PLUGINDIR=@GET_LIBDIR@/mysql/plugin
		-DINSTALL_SBINDIR=sbin
		-DINSTALL_SCRIPTDIR=share/mysql/scripts
		-DINSTALL_SQLBENCHDIR=share/mysql
		-DINSTALL_SUPPORTFILESDIR=${EPREFIX}/usr/share/mysql
		-DMYSQL_UNIX_ADDR=${EPREFIX}/var/run/mysqld/mysqld.sock
		-DWITH_COMMENT="Gentoo Linux ${PF}"
	)

	# Bug 412851
	# MariaDB requires this flag to compile with GPLv3 readline linked
	# Adds a warning about redistribution to configure
	if [[ ${PN} == "mariadb" || ${PN} == "mariadb-galera" ]] ; then
		mycmakeargs+=( -DNOT_FOR_DISTRIBUTION=1 )
	fi

	configure_cmake_locale

	# Bug #114895, bug #110149
	filter-flags "-O" "-O[01]"

	CXXFLAGS="${CXXFLAGS} -fno-strict-aliasing"
	CXXFLAGS="${CXXFLAGS} -felide-constructors -fno-rtti"
	# Causes linkage failures.  Upstream bug #59607 removes it
	if ! mysql_version_is_at_least "5.6" ; then
		CXXFLAGS="${CXXFLAGS} -fno-implicit-templates"
	fi
	# As of 5.7, exceptions are used!
	if ! mysql_version_is_at_least "5.7" ; then
		CXXFLAGS="${CXXFLAGS} -fno-exceptions"
	fi
	export CXXFLAGS

	# bug #283926, with GCC4.4, this is required to get correct behavior.
	append-flags -fno-strict-aliasing

	ehook cmake-multilib-pre_src_configure mysql_cmake_abi_pre_configure
	cmake-multilib_src_configure
}

mysql_cmake_abi_pre_configure() {
	debug-print-function ${FUNCNAME} "$@"

	if multilib_is_best_abi && use '!minimal' ; then
		configure_cmake_standard
	else
		configure_cmake_minimal
	fi
}

# @FUNCTION: mysql-cmake-multilib_src_compile
# @DESCRIPTION:
# Compile the mysql code.
mysql-cmake-multilib_src_compile() {

	debug-print-function ${FUNCNAME} "$@"

	cmake-multilib_src_compile
}

# @FUNCTION: mysql-cmake-multilib_src_install
# @DESCRIPTION:
# Install mysql.
mysql-cmake-multilib_src_install() {

	debug-print-function ${FUNCNAME} "$@"

	# Make sure the vars are correctly initialized
	ehook cmake-multilib-pre_src_install mysql_init_vars
	ehook cmake-multilib-post_src_install _mysql-cmake-post-src_install_perabi
	cmake-multilib_src_install

	# Convenience links
	einfo "Making Convenience links for mysqlcheck multi-call binary"
	dosym "/usr/bin/mysqlcheck" "/usr/bin/mysqlanalyze"
	dosym "/usr/bin/mysqlcheck" "/usr/bin/mysqlrepair"
	dosym "/usr/bin/mysqlcheck" "/usr/bin/mysqloptimize"

	# Create a mariadb_config symlink
	[[ ${PN} == "mariadb" || ${PN} == "mariadb-galera" ]] && dosym "/usr/bin/mysql_config" "/usr/bin/mariadb_config"

	# INSTALL_LAYOUT=STANDALONE causes cmake to create a /usr/data dir
	rm -Rf "${ED}usr/data"

	# Various junk (my-*.cnf moved elsewhere)
	einfo "Removing duplicate /usr/share/mysql files"

	# Clean up stuff for a minimal build
#	if use minimal ; then
#		einfo "Remove all extra content for minimal build"
#		rm -Rf "${D}${MY_SHAREDSTATEDIR}"/{mysql-test,sql-bench}
#		rm -f "${ED}"/usr/bin/{mysql{_install_db,manager*,_secure_installation,_fix_privilege_tables,hotcopy,_convert_table_format,d_multi,_fix_extensions,_zap,_explain_log,_tableinfo,d_safe,_install,_waitpid,binlog,test},myisam*,isam*,pack_isam}
#		rm -f "${ED}/usr/sbin/mysqld"
#		rm -f "${D}${MY_LIBDIR}"/lib{heap,merge,nisam,my{sys,strings,sqld,isammrg,isam},vio,dbug}.a
#	fi

	# Unless they explicitly specific USE=test, then do not install the
	# testsuite. It DOES have a use to be installed, esp. when you want to do a
	# validation of your database configuration after tuning it.
	if ! use test ; then
		rm -rf "${D}"/${MY_SHAREDSTATEDIR}/mysql-test
	fi

	# Configuration stuff
	case ${MYSQL_PV_MAJOR} in
		5.[1-4]*) mysql_mycnf_version="5.1" ;;
		5.[5-9]|6*|7*|8*|9*|10*) mysql_mycnf_version="5.5" ;;
	esac
	einfo "Building default my.cnf (${mysql_mycnf_version})"
	insinto "${MY_SYSCONFDIR#${EPREFIX}}"
	doins scripts/mysqlaccess.conf
	mycnf_src="my.cnf-${mysql_mycnf_version}"
	sed -e "s!@DATADIR@!${MY_DATADIR}!g" \
		"${FILESDIR}/${mycnf_src}" \
		> "${TMPDIR}/my.cnf.ok"
	if use latin1 ; then
		sed -i \
			-e "/character-set/s|utf8|latin1|g" \
			"${TMPDIR}/my.cnf.ok"
	fi
	eprefixify "${TMPDIR}/my.cnf.ok"
	newins "${TMPDIR}/my.cnf.ok" my.cnf

	#Remove mytop if perl is not selected
	[[ ${PN} == "mariadb" || ${PN} == "mariadb-galera" ]] && ! use perl \
	&& rm -f "${ED}/usr/bin/mytop"
}

_mysql-cmake-post-src_install_perabi() {
	debug-print-function ${FUNCTION} "$@"

	# Minimal builds don't have the MySQL server
	if multilib_is_best_abi && use '!minimal' ; then
		einfo "Creating initial directories"
		# Empty directories ...
		diropts "-m0750"
		if [[ ${PREVIOUS_DATADIR} != "yes" ]] ; then
			dodir "${MY_DATADIR#${EPREFIX}}"
			keepdir "${MY_DATADIR#${EPREFIX}}"
			chown -R mysql:mysql "${D}/${MY_DATADIR}"
		fi

		diropts "-m0755"
		for folder in "${MY_LOGDIR#${EPREFIX}}" ; do
			dodir "${folder}"
			keepdir "${folder}"
			chown -R mysql:mysql "${ED}/${folder}"
		done

		einfo "Including support files and sample configurations"
		docinto "support-files"
		for script in \
			"${S}"/support-files/my-*.cnf.sh \
			"${S}"/support-files/magic \
			"${S}"/support-files/ndb-config-2-node.ini.sh
		do
			[[ -f $script ]] && dodoc "${script}"
		done

		docinto "scripts"
		for script in "${S}"/scripts/mysql* ; do
			[[ ( -f $script ) && ( ${script%.sh} == ${script} ) ]] && dodoc "${script}"
		done
	fi

	cat <<-EOF > "${T}"/80mysql-libdir$(multilib_is_best_abi || echo "-${ABI}")
	LDPATH="${EPREFIX}/usr/$(get_libdir)/mysql"
	EOF
	doenvd "${T}"/80mysql-libdir$(multilib_is_best_abi || echo "-${ABI}")
}