# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

EAPI=2

KEYWORDS="~amd64 ~x86"

WANT_AUTOCONF="latest"
WANT_AUTOMAKE="latest"

inherit toolchain-funcs cmake-utils eutils flag-o-matic gnuconfig autotools versionator 

#MY_PKG="percona-server"
#MY_VER="5.5.10"
SRC_URI="http://www.percona.com/redir/downloads/Percona-Server-5.5/Percona-Server-5.5.10-rc20.1/source/Percona-Server-5.5.10-rc20.1.tar.gz"
S=${WORKDIR}/Percona-Server-5.5.10-rc20.1

DESCRIPTION="A fast, multi-threaded, multi-user SQL database server."
HOMEPAGE="http://www.percona.com/"
LICENSE="GPL-2"
SLOT="0"
IUSE="ssl static debug latin1 no-configs archive blackhole"

# Be warned, *DEPEND are version-dependant
# These are used for both runtime and compiletime
DEPEND="ssl? ( >=dev-libs/openssl-0.9.6d )
        userland_GNU? ( sys-process/procps )
        >=sys-apps/sed-4
        >=sys-apps/texinfo-4.7-r1
        >=sys-libs/readline-4.1
        >=sys-libs/zlib-1.2.3"

# Having different flavours at the same time is not a good idea
for i in "mysql" "mysql-community" "mysql-cluster" "mariadb" ; do
	[[ "${i}" == ${PN} ]] ||
	DEPEND="${DEPEND} !dev-db/${i}"
done

RDEPEND="${DEPEND}
        !no-configs? ( dev-db/mysql-init-scripts )
		=virtual/mysql-5.5"

percona_init_vars() {
	MY_SHAREDSTATEDIR=${MY_SHAREDSTATEDIR="/usr/share/mysql"}
	MY_SYSCONFDIR=${MY_SYSCONFDIR="/etc/mysql"}
	MY_LIBDIR=${MY_LIBDIR="/usr/$(get_libdir)/mysql"}
	MY_LOCALSTATEDIR=${MY_LOCALSTATEDIR="/var/lib/mysql"}
	MY_LOGDIR=${MY_LOGDIR="/var/log/mysql"}
	MY_INCLUDEDIR=${MY_INCLUDEDIR="/usr/include/mysql"}

	if [[ -z "${MY_DATADIR}" ]] ; then
		MY_DATADIR=""
		if [[ -f "${MY_SYSCONFDIR}/my.cnf" ]] ; then
			MY_DATADIR=`"my_print_defaults" mysqld 2>/dev/null \
				| sed -ne '/datadir/s|^--datadir=||p' \
				| tail -n1`
				if [[ -z "${MY_DATADIR}" ]] ; then
				MY_DATADIR=`grep ^datadir "${MY_SYSCONFDIR}/my.cnf" \
				| sed -e 's/.*=\s*//' \
				| tail -n1`
				fi
				fi
				if [[ -z "${MY_DATADIR}" ]] ; then
				MY_DATADIR="${MY_LOCALSTATEDIR}"
				einfo "Using default MY_DATADIR"
		fi
		elog "MySQL MY_DATADIR is ${MY_DATADIR}"

		if [[ -z "${PREVIOUS_DATADIR}" ]] ; then
			if [[ -e "${MY_DATADIR}" ]] ; then
				# If you get this and you're wondering about it, see bug #207636
				elog "MySQL datadir found in ${MY_DATADIR}"
				elog "A new one will not be created."
				PREVIOUS_DATADIR="yes"
			else
				PREVIOUS_DATADIR="no"
			fi
			export PREVIOUS_DATADIR
		fi
	fi

	if [ "${MY_SOURCEDIR:-unset}" == "unset" ]; then
		MY_SOURCEDIR=${SERVER_URI##*/}
		MY_SOURCEDIR=${MY_SOURCEDIR%.tar*}
	fi

	export MY_SHAREDSTATEDIR MY_SYSCONFDIR
	export MY_LIBDIR MY_LOCALSTATEDIR MY_LOGDIR
	export MY_INCLUDEDIR MY_DATADIR MY_SOURCEDIR
}

mysql_lib_symlinks() {
	einfo "Updating MySQL .so symlinks"
	local d dirlist maxdots soname sonameln reldir
	reldir="${1}"
	pushd "${reldir}/usr/$(get_libdir)" &> /dev/null
		# dirlist must contain the less significative directory left
		dirlist="mysql"

		# waste some time in removing and recreating symlinks
		for d in $dirlist ; do
			for soname in $( find "${d}" -name "*.so*" -and -not -type "l" 2>/dev/null ) ; do
				# maxdot is a limit versus infinite loop
				maxdots=0
				sonameln=${soname##*/}
				# loop in version of the library to link it, similar to how
				# libtool works
				while [[ ${sonameln:0-3} != '.so' ]] && [[ ${maxdots} -lt 6 ]] ; do
					rm -f "${sonameln}"
					ln -s "${soname}" "${sonameln}"
					(( ++maxdots ))
					sonameln="${sonameln%.*}"
				done
				rm -f "${sonameln}"
				ln -s "${soname}" "${sonameln}"
			done
		done
		popd &> /dev/null
}

pkg_setup () {

	    enewgroup mysql 60 || die "problem adding 'mysql' group"
		enewuser mysql 60 -1 /dev/null mysql || die "problem adding 'mysql'	user"
}

src_configure() {

	percona.cmake_src_configure
}

src_compile() {

	percona.cmake_src_compile
}

src_install() {

	percona.cmake_src_install
}

percona.cmake_src_configure() {

	mycmakeargs=(
		-DCMAKE_INSTALL_PREFIX=/usr
		-DINSTALL_SBINDIR=sbin
		-DINSTALL_BINDIR=bin
		-DSYSCONFDIR=/etc/mysql
		-DMYSQL_DATADIR=/var/lib/mysql
		-DCOMPILATION_COMMENT="Gentoo Linux ${PF}"
		-DINSTALL_MYSQLSHAREDIR=share/mysql
		-DINSTALL_LIBDIR=lib/mysql
		-DINSTALL_PLUGINDIR=lib/mysql/plugin
		-DINSTALL_MANDIR=share/man
		-DINSTALL_INFODIR=share/info
		-DINSTALL_INCLUDEDIR=include/mysql
		-DINSTALL_DOCREADMEDIR="share/doc/${PF}"
		-DINSTALL_DOCDIR="share/doc/${PF}"
		-DINSTALL_SCRIPTDIR="share/doc/${PF}/scripts"
		-DINSTALL_SQLBENCHDIR=share/mysql
		-DINSTALL_MYSQLTESTDIR=share/mysql-test
		-DINSTALL_SUPPORTFILESDIR=share/mysql)

	if use ssl ; then
	  mycmakeargs+=( -DWITH_SSL=system)
	else
	  mycmakeargs+=( -DWITH_SSL=no)
	fi
	mycmakeargs+=(
	      -DWITH-ZLIB=system
	      -DWITH-READLINE=1
	)
	configure_common_cmake

	CXXFLAGS="${CXXFLAGS} -fno-exceptions -fno-strict-aliasing"
	CXXFLAGS="${CXXFLAGS} -felide-constructors -fno-rtti"
	CXXFLAGS="${CXXFLAGS} -fno-implicit-templates"

	export CXXFLAGS

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

	export CFLAGS

	cmake-utils_src_configure

}

configure_common_cmake() {
	mycmakeargs+=(
		-DENABLED_LOCAL_INFILE=1
		-DEXTRA_CHARSETS=all
		-DMYSQL_USER=mysql
		-DMYSQL_UNIX_ADDR=/var/run/mysqld/mysqld.sock
		-DWITH_LIBWRAP=0
		-DWITHOUT_SERVER=0)

	if use static ; then
		mycmakeargs+=(
			-DDISABLE_SHARED=1
			-DWITH_PIC=1)
	else
		mycmakeargs+=( -DDISABLED_SHARED=0)
	fi

	if use debug ; then
		mycmakeargs+=( -DCMAKE_BUILD_TYPE=Debug )
	else
		mycmakeargs+=( -DCMAKE_BUILD_TYPE=RelWithDebInfo )
	fi

	if use archive ; then
		mycmakeargs+=( -DWITH_ARCHIVE_STORAGE_ENGINE=1 )
	else
		mycmakeargs+=( -DWITH_ARCHIVE_STORAGE_ENGINE=0 )
	fi

	if use blackhole ; then
		mycmakeargs+=( -DWITH_BLACKHOLE_STORAGE_ENGINE=1 )
	else
		mycmakeargs+=( -DWITH_BLACKHOLE_STORAGE_ENGINE=0 )
	fi

	if [ -n "${MYSQL_DEFAULT_CHARSET}" -a -n "${MYSQL_DEFAULT_COLLATION}" ]; then
		ewarn "You are using a custom charset of ${MYSQL_DEFAULT_CHARSET}"
		ewarn "and a collation of ${MYSQL_DEFAULT_COLLATION}."
		ewarn "You MUST file bugs without these variables set."
		mycmakeargs+=(
			-DDEFAULT-CHARSET="${MYSQL_DEFAULT_CHARSET}"
			-DDEFAULT-COLLATION="${MYSQL_DEFAULT_COLLATION}")
	elif ! use latin1 ; then
		mycmakeargs+=(
			-DDEFAULT-CHARSET=utf8
			-DDEFAULT-COLLATION=utf8_general_ci)
	else
		mycmakeargs+=(
			-DDEFAULT-CHARSET=latin1
			-DDEFAULT-COLLATION=latin1_swedish_ci)
	fi

}

percona.cmake_src_compile() {
	# Be backwards compatible for now
	case ${EAPI:-0} in
        2) : ;;
        0 | 1) percona.cmake_src_configure ;;
    esac

	cmake-utils_src_compile

}

percona.cmake_src_install() {
	# Make sure the vars are correctly initialized
	percona_init_vars
	cmake-utils_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"

	# Various junk (my-*.cnf moved elsewhere)
	einfo "Removing duplicate /usr/share/mysql files"
	rm -Rf "${D}/usr/share/info"
	for removeme in  "mysql-log-rotate" mysql.server* \
		binary-configure* my-*.cnf mi_test_all*
	do
		rm -f "${D}"/${MY_SHAREDSTATEDIR}/${removeme}
	done

	# 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
	einfo "Building default my.cnf"
	insinto "${MY_SYSCONFDIR}"
	doins scripts/mysqlaccess.conf
	#mycnf_src="scripts/my-${mysql_mycnf_version}"
	mycnf_src="${S}/support-files/my-huge.cnf.sh"
	sed -e "s!@MYSQL_UNIX_ADDR@!/var/run/mysqld/mysqld.sock!g" "${mycnf_src}" > "${TMPDIR}/my.cnf.ok"
	sed -e "s!@MYSQL_TCP_PORT@!3306!g" "${TMPDIR}/my.cnf.ok" > "${TMPDIR}/my.cnf-port.ok"
	sed '26i\user = mysql' "${TMPDIR}/my.cnf-port.ok" >"${TMPDIR}/my.cnf-user.ok"
	sed '27i\basedir = /usr' "${TMPDIR}/my.cnf-user.ok"	>"${TMPDIR}/my.cnf-basedir.ok"
	sed '28i\datadir = /var/lib/mysql' "${TMPDIR}/my.cnf-basedir.ok" >"${TMPDIR}/my.cnf-datadir.ok"
	sed '29i\pid-file = /var/run/mysqld/mysqld.pid'	"${TMPDIR}/my.cnf-datadir.ok" >"${TMPDIR}/my.cnf-pid.ok"
	sed '30i\log-error = /var/log/mysql/mysqld.err' "${TMPDIR}/my.cnf-pid.ok" >"${TMPDIR}/my.cnf.okay"
	if use latin1 ; then
	sed '26i\character-set-server = latin1'	"${TMPDIR}/my.cnf.okay" >"${TMPDIR}/my.cnf-char.okay"
	mv "${TMPDIR}/my.cnf-char.okay" "${TMPDIR}/my.cnf.okay"
	fi
	newins "${TMPDIR}/my.cnf.okay" my.cnf || die

		einfo "Creating initial directories"
		# Empty directories ...
		diropts "-m0750"
		if [[ "${PREVIOUS_DATADIR}" != "yes" ]] ; then
			dodir "${MY_DATADIR}"
			keepdir "${MY_DATADIR}"
			chown -R mysql:mysql "${D}/${MY_DATADIR}"
		fi

		diropts "-m0755"
		for folder in "${MY_LOGDIR}" "/var/run/mysqld" ; do
			dodir "${folder}"
			keepdir "${folder}"
			chown -R mysql:mysql "${D}/${folder}"
		done

	# Docs
	einfo "Installing docs"
	dodoc "${S}"/Docs/ChangeLog
	doinfo "${S}"/Docs/mysql.info

	if ! use no-configs ; then
		einfo "Including support files and sample configurations"
		docinto "support-files"
		for script in \
			"${S}"/support-files/my-*.cnf \
			"${S}"/support-files/magic \
			"${S}"/support-files/ndb-config-2-node.ini
		do
			[[ -f "$script" ]] && dodoc "${script}"
		done

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

	fi

	mysql_lib_symlinks "${D}"
}

pkg_postinst () {

		einfo
		elog "mysql_install_db has been installed to"
		elog "/usr/share/doc/percona-server-5.5.10_rc1/scripts/"
		elog ""
		elog "You can cd there and then issue the command:"
		elog "./mysql_install_db --basedir=/usr/"
		einfo

		einfo
		elog "Please check my.cnf if this is a fresh install"
		einfo
}

percona_pkg_postrm() {
	: #mysql_lib_symlinks "${D}"
}