# Copyright 1999-2015 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$

# @ECLASS: intel-sdp.eclass
# @MAINTAINER:
# Justin Lecher <jlec@gentoo.org>
# Sci Team <sci@gentoo.org>
# @BLURB: Handling of Intel's Software Development Products package management

# @ECLASS-VARIABLE: INTEL_DID
# @DEFAULT_UNSET
# @DESCRIPTION:
# The package download ID from Intel.
# To find out its value, see the links to download in
# https://registrationcenter.intel.com/RegCenter/MyProducts.aspx
#
# e.g. 2504
#
# Must be defined before inheriting the eclass

# @ECLASS-VARIABLE: INTEL_DPN
# @DEFAULT_UNSET
# @DESCRIPTION:
# The package name to download from Intel.
# To find out its value, see the links to download in
# https://registrationcenter.intel.com/RegCenter/MyProducts.aspx
#
# e.g. parallel_studio_xe
#
# Must be defined before inheriting the eclass

# @ECLASS-VARIABLE: INTEL_DPV
# @DEFAULT_UNSET
# @DESCRIPTION:
# The package download version from Intel.
# To find out its value, see the links to download in
# https://registrationcenter.intel.com/RegCenter/MyProducts.aspx
#
# e.g. 2011_sp1_update2
#
# Must be defined before inheriting the eclass

# @ECLASS-VARIABLE: INTEL_TARX
# @DEFAULT_UNSET
# @DESCRIPTION:
# The package extention.
# To find out its value, see the links to download in
# https://registrationcenter.intel.com/RegCenter/MyProducts.aspx
#
# e.g. tar.gz
#
# Must be defined before inheriting the eclass
: ${INTEL_TARX:=tgz}

# @ECLASS-VARIABLE: INTEL_SUBDIR
# @DEFAULT_UNSET
# @DESCRIPTION:
# The package sub-directory where it will end-up in /opt/intel
# To find out its value, you have to do a raw install from the Intel tar ball

# @ECLASS-VARIABLE: INTEL_SKIP_LICENSE
# @DEFAULT_UNSET
# @DESCRIPTION:
# Possibility to skip the mandatory check for licenses. Only set this if there
# is really no fix.

# @ECLASS-VARIABLE: INTEL_RPMS_DIR
# @DESCRIPTION:
# Main subdirectory which contains the rpms to extract.
: ${INTEL_RPMS_DIR:=rpm}

# @ECLASS-VARIABLE: INTEL_X86
# @DESCRIPTION:
# 32bit arch in rpm names
#
# e.g. i484
: ${INTEL_X86:=i486}

# @ECLASS-VARIABLE: INTEL_BIN_RPMS
# @DEFAULT_UNSET
# @DESCRIPTION:
# Functional name of rpm without any version/arch tag
#
# e.g. compilerprof
#
# if the rpm is located in a directory different to INTEL_RPMS_DIR you can
# specify the full path
#
# e.g. CLI_install/rpm/intel-vtune-amplifier-xe-cli

# @ECLASS-VARIABLE: INTEL_DAT_RPMS
# @DEFAULT_UNSET
# @DESCRIPTION:
# Functional name of rpm of common data which are arch free
# without any version tag
#
# e.g. openmp
#
# if the rpm is located in a directory different to INTEL_RPMS_DIR you can
# specify the full path
#
# e.g. CLI_install/rpm/intel-vtune-amplifier-xe-cli-common

# @ECLASS-VARIABLE: INTEL_SINGLE_ARCH
# @DESCRIPTION:
# Unset, if only the multilib package will be provided by intel
: ${INTEL_SINGLE_ARCH:=true}

# @ECLASS-VARIABLE: INTEL_SDP_DB
# @DESCRIPTION:
# Full path to intel registry db
INTEL_SDP_DB="${EROOT%/}"/opt/intel/intel-sdp-products.db

inherit check-reqs eutils multilib versionator

_INTEL_PV1=$(get_version_component_range 1)
_INTEL_PV2=$(get_version_component_range 2)
_INTEL_PV3=$(get_version_component_range 3)
_INTEL_PV4=$(get_version_component_range 4)
_INTEL_URI="http://registrationcenter-download.intel.com/irc_nas/${INTEL_DID}/${INTEL_DPN}"

if [ ${INTEL_SINGLE_ARCH} == true ]; then
	SRC_URI="
		amd64? ( multilib? ( ${_INTEL_URI}_${INTEL_DPV}.${INTEL_TARX} ) )
		amd64? ( !multilib? ( ${_INTEL_URI}_${INTEL_DPV}_intel64.${INTEL_TARX} ) )
		x86?	( ${_INTEL_URI}_${INTEL_DPV}_ia32.${INTEL_TARX} )"
else
	SRC_URI="${_INTEL_URI}_${INTEL_DPV}.${INTEL_TARX}"
fi

LICENSE="Intel-SDP"
# Future work, #394411
#SLOT="${_INTEL_PV1}.${_INTEL_PV2}"
SLOT="0"
IUSE="examples multilib"

RESTRICT="mirror"

RDEPEND=""
DEPEND="app-arch/rpm2targz"

_INTEL_SDP_YEAR=${INTEL_DPV%_update*}
_INTEL_SDP_YEAR=${INTEL_DPV%_sp*}

# @ECLASS-VARIABLE: INTEL_SDP_DIR
# @DEFAULT_UNSET
# @DESCRIPTION:
# Full rootless path to installation dir
INTEL_SDP_DIR="opt/intel/${INTEL_SUBDIR}-${_INTEL_SDP_YEAR:-${_INTEL_PV1}}.${_INTEL_PV3}.${_INTEL_PV4}"

# @ECLASS-VARIABLE: INTEL_SDP_EDIR
# @DEFAULT_UNSET
# @DESCRIPTION:
# Full rooted path to installation dir
INTEL_SDP_EDIR="${EROOT%/}/${INTEL_SDP_DIR}"

S="${WORKDIR}"

QA_PREBUILT="${INTEL_SDP_DIR}/*"

# @ECLASS-VARIABLE: INTEL_ARCH
# @DEFAULT_UNSET
# @DESCRIPTION:
# Intels internal names of the arches; will be set at runtime accordingly
#
# e.g. amd64-multilib -> INTEL_ARCH="intel64 ia32"

# @FUNCTION: _isdp_link_eclipse_plugins
# @INTERNAL
# @DESCRIPTION:
# Creating necessary links to use intel compiler with eclipse
_isdp_link_eclipse_plugins() {
	local c f
	pushd ${INTEL_SDP_DIR}/eclipse_support > /dev/null || die
		for c in cdt*; do
			local cv=${c#cdt} ev=3.$(( ${cv:0:1} - 1))
			if has_version "dev-util/eclipse-sdk:${ev}"; then
				einfo "Linking eclipse (v${ev}) plugin cdt (v${cv})"
				for f in cdt${cv}/eclipse/features/*; do
					dodir /usr/$(get_libdir)/eclipse-${ev}/features
					dosym "${INTEL_SDP_EDIR}"/eclipse_support/${f} \
						/usr/$(get_libdir)/eclipse-${ev}/features/ || die
				done
				for f in cdt${cv}/eclipse/plugins/*; do
					dodir /usr/$(get_libdir)/eclipse-${ev}/plugins
					dosym "${INTEL_SDP_EDIR}"/eclipse_support/${f} \
						/usr/$(get_libdir)/eclipse-${ev}/plugins/ || die
				done
			fi
		done
	popd > /dev/null || die
}

# @FUNCTION: _isdp_big-warning
# @USAGE: [pre-check | test-failed]
# @INTERNAL
# @DESCRIPTION:
# warn user that we really require a license
_isdp_big-warning() {
	case ${1} in
		pre-check )
			echo ""
			ewarn "License file not found!"
			;;

		test-failed )
			echo
			ewarn "Function test failed. Most probably due to an invalid license."
			ewarn "This means you already tried to bypass the license check once."
			;;
	esac

	echo ""
	ewarn "Make sure you have received an Intel license."
	ewarn "To receive a non-commercial license, you need to register at:"
	ewarn "https://software.intel.com/en-us/qualify-for-free-software"
	ewarn "Install the license file into ${INTEL_SDP_EDIR}/licenses/"

	case ${1} in
		pre-check )
			ewarn "before proceeding with installation of ${P}"
			echo ""
			;;
		* )
			echo ""
			;;
			esac
}

# @FUNCTION: _isdp_version_test
# @INTERNAL
# @DESCRIPTION:
# Testing for valid license by asking for version information of the compiler
_isdp_version_test() {
	local comp comp_full arch warn
	case ${PN} in
		ifc )
			debug-print "Testing ifort"
			comp=ifort
			;;
		icc )
			debug-print "Testing icc"
			comp=icc
			;;
		*)
			die "${PN} is not supported for testing"
			;;
	esac

	for arch in ${INTEL_ARCH}; do
		case ${EBUILD_PHASE} in
			install )
				comp_full="${ED}/${INTEL_SDP_DIR}/bin/${arch}/${comp}"
				;;
			postinst )
				comp_full="${INTEL_SDP_EDIR}/bin/${arch}/${comp}"
				;;
			* )
				ewarn "Compile test not supported in ${EBUILD_PHASE}"
				continue
				;;
		esac

		debug-print "LD_LIBRARY_PATH=\"${INTEL_SDP_EDIR}/bin/${arch}/\" \"${comp_full}\" -V"

		LD_LIBRARY_PATH="${INTEL_SDP_EDIR}/bin/${arch}/" "${comp_full}" -V &>/dev/null
		[[ $? -ne 0 ]] && warn=yes
	done
	[[ "${warn}" == "yes" ]] && _isdp_big-warning test-failed
}

# @FUNCTION: _isdp_run-test
# @INTERNAL
# Test if installed compiler is working
_isdp_run-test() {
	if [[ -z ${INTEL_SKIP_LICENSE} ]]; then
		case ${PN} in
			ifc | icc )
				_isdp_version_test ;;
			* )
				debug-print "No test available for ${PN}"
				;;
		esac
	fi
}

# @FUNCTION: intel-sdp_pkg_pretend
# @DESCRIPTION:
# @CODE
# * Check that the user has a (valid) license file before going on.
# * Check for space requirements being fullfilled
# @CODE
intel-sdp_pkg_pretend() {
	local warn=1 dir dirs ret arch a p

	: ${CHECKREQS_DISK_BUILD:=256M}
	check-reqs_pkg_pretend

	if [[ -z ${INTEL_SKIP_LICENSE} ]]; then
		if echo ${INTEL_LICENSE_FILE} | grep -q @; then
			einfo "Looks like you are using following license server:"
			einfo "   ${INTEL_LICENSE_FILE}"
			return 0
		fi

		dirs=(
			"${INTEL_SDP_EDIR}/licenses"
			"${INTEL_SDP_EDIR}/Licenses"
			"${EPREFIX}/opt/intel/licenses"
			)
		for dir in "${dirs[@]}" ; do
			ebegin "Checking for a license in: ${dir}"
			#maybe use nullglob or [[ $(echo ${dir/*lic) != "${dir}/*lic" ]]
			[[ $( ls "${dir}"/*lic 2>/dev/null ) ]]; ret=$?
			eend ${ret}
			if [[ ${ret} == "0" ]]; then
				warn=${ret}
				break
			fi
		done
		if [[ ${warn} == "1" ]]; then
			_isdp_big-warning pre-check
			die "Could not find license file"
		fi
	else
		eqawarn "The ebuild doesn't check for presents of a proper intel license!"
		eqawarn "This shouldn't be done unless there is a serious reason."
	fi
}

# @FUNCTION: intel-sdp_pkg_setup
# @DESCRIPTION:
# Setting up and sorting some internal variables
intel-sdp_pkg_setup() {
	local arch a p

	if use x86; then
		arch=${INTEL_X86}
		INTEL_ARCH="ia32"
	elif use amd64; then
		arch=x86_64
		INTEL_ARCH="intel64"
		if has_multilib_profile; then
			arch="x86_64 ${INTEL_X86}"
			INTEL_ARCH="intel64 ia32"
		fi
	fi
	INTEL_RPMS=()
	INTEL_RPMS_FULL=()
	if [[ $(declare -p INTEL_BIN_RPMS) = "declare -a "* ]] ; then
		_INTEL_BIN_RPMS=( ${INTEL_BIN_RPMS[@]} )
	else
		read -r -d '' -a _INTEL_BIN_RPMS <<<"${INTEL_BIN_RPMS}"
	fi
	for p in "${_INTEL_BIN_RPMS[@]}"; do
		for a in ${arch}; do
			if [ ${p} == $(basename ${p}) ]; then
				INTEL_RPMS+=( intel-${p}-${_INTEL_PV4}-${_INTEL_PV1}.${_INTEL_PV2}-${_INTEL_PV3}.${a}.rpm )
			else
				INTEL_RPMS_FULL+=( ${p}-${_INTEL_PV4}-${_INTEL_PV1}.${_INTEL_PV2}-${_INTEL_PV3}.${a}.rpm )
			fi
		done
	done
	if [[ $(declare -p INTEL_DAT_RPMS) = "declare -a "* ]] ; then
		_INTEL_DAT_RPMS=( ${INTEL_DAT_RPMS[@]} )
	else
		read -r -d '' -a _INTEL_DAT_RPMS <<<"${INTEL_DAT_RPMS}"
	fi
	for p in "${_INTEL_DAT_RPMS[@]}"; do
		if [ ${p} == $(basename ${p}) ]; then
			INTEL_RPMS+=( intel-${p}-${_INTEL_PV4}-${_INTEL_PV1}.${_INTEL_PV2}-${_INTEL_PV3}.noarch.rpm )
		else
			INTEL_RPMS_FULL+=( ${p}-${_INTEL_PV4}-${_INTEL_PV1}.${_INTEL_PV2}-${_INTEL_PV3}.noarch.rpm )
		fi
	done
}

# @FUNCTION: intel-sdp_src_unpack
# @DESCRIPTION:
# Unpacking necessary rpms from tarball, extract them and rearrange the output.
intel-sdp_src_unpack() {
	local l r subdir rb t list=() debug_list

	for t in ${A}; do
		for r in "${INTEL_RPMS[@]}"; do
			rpmdir=${t%%.*}/${INTEL_RPMS_DIR}
			list+=( ${rpmdir}/${r} )
		done

		for r in "${INTEL_RPMS_FULL[@]}"; do
			list+=( ${t%%.*}/${r} )
		done

		debug_list="$(IFS=$'\n'; echo ${list[@]} )"

		debug-print "Adding to decompression list:"
		debug-print ${debug_list}

		tar xvf "${DISTDIR}"/${t} ${list[@]} &> "${T}"/rpm-extraction.log

		for r in ${list[@]}; do
			rb=$(basename ${r})
			l=.${rb}_$(date +'%d%m%y_%H%M%S').log
			einfo "Unpacking ${rb}"
			rpm2tar -O ${r} | tar xvf - | sed -e \
				"s:^\.:${EROOT#/}:g" > ${l}; assert "unpacking ${r} failed"
			mv ${l} opt/intel/ || die "failed moving extract log file"
		done
	done

	mv opt/intel/* ${INTEL_SDP_DIR} || die "mv to INTEL_SDP_DIR failed"
}

# @FUNCTION: intel-sdp_src_install
# @DESCRIPTION:
# Install everything
intel-sdp_src_install() {
	if path_exists "${INTEL_SDP_DIR}"/uninstall*; then
		ebegin "Cleaning out uninstall information"
		find "${INTEL_SDP_DIR}"/uninstall* -delete || die
		eend
	fi

	if path_exists "${INTEL_SDP_DIR}"/Documentation; then
		dodoc -r "${INTEL_SDP_DIR}"/Documentation/*

		ebegin "Cleaning out documentation"
		find "${INTEL_SDP_DIR}"/Documentation -delete || die
		eend
	fi

	if path_exists "${INTEL_SDP_DIR}"/Samples; then
		if use examples ; then
			insinto /usr/share/${P}/examples/
			doins -r "${INTEL_SDP_DIR}"/Samples/*
		fi
		ebegin "Cleaning out examples"
		find "${INTEL_SDP_DIR}"/Samples -delete || die
		eend
	fi

	if path_exists "${INTEL_SDP_DIR}"/eclipse_support; then
		if has eclipse ${IUSE} && use eclipse; then
			_isdp_link_eclipse_plugins
		else
			ebegin "Cleaning out eclipse plugin"
			find "${INTEL_SDP_DIR}"/eclipse_support -delete || die
			eend
		fi
	fi

	if path_exists "${INTEL_SDP_DIR}"/man; then
		path_exists "${INTEL_SDP_DIR}"/man/en_US/man1/* && \
			doman "${INTEL_SDP_DIR}"/man/en_US/man1/*
		path_exists "${INTEL_SDP_DIR}"/man/man1/* && \
			doman "${INTEL_SDP_DIR}"/man/man1/*
		has linguas_ja ${IUSE} && use linguas_ja && \
			doman -i18n=ja_JP "${INTEL_SDP_DIR}"/man/ja_JP/man1/*

		find "${INTEL_SDP_DIR}"/man -delete || die
	fi

	ebegin "Tagging ${PN}"
	find opt -name \*sh -type f -exec sed -i \
		-e "s:<.*DIR>:${INTEL_SDP_EDIR}:g" \
		'{}' + || die
	eend

	[[ -d "${ED}" ]] || dodir /
	mv opt "${ED}"/ || die "moving files failed"

	dodir "${INTEL_SDP_DIR}"/licenses /opt/intel/ism/rm
	keepdir "${INTEL_SDP_DIR}"/licenses /opt/intel/ism/rm
}

# @FUNCTION: intel-sdp_pkg_postinst
# @DESCRIPTION:
# Add things to intel database
intel-sdp_pkg_postinst() {
	# add product registry to intel "database"
	local l r
	for r in ${INTEL_RPMS}; do
		l="$(ls -1 ${EROOT%/}/opt/intel/.${r}_*.log | head -n 1)"
		echo >> ${INTEL_SDP_DB} \
			"<:${r%-${_INTEL_PV4}*}-${_INTEL_PV4}:${r}:${INTEL_SDP_EDIR}:${l}:>"
	done
	_isdp_run-test

	if [[ ${PN} = icc ]] && has_version ">=dev-util/ccache-3.1.9-r2" ; then
		#add ccache links as icc might get installed after ccache
		"${EROOT}"/usr/bin/ccache-config --install-links
	fi
}

# @FUNCTION: intel-sdp_pkg_postrm
# @DESCRIPTION:
# Sanitize intel database
intel-sdp_pkg_postrm() {
	# remove from intel "database"
	if [[ -e ${INTEL_SDP_DB} ]]; then
		local r
		for r in ${INTEL_RPMS}; do
			sed -i \
				-e "/${r}/d" \
				${INTEL_SDP_DB}
		done
	fi

	if [[ ${PN} = icc ]] && has_version ">=dev-util/ccache-3.1.9-r2" && [[ -z ${REPLACED_BY_VERSION} ]]; then
		# --remove-links would remove all links, --install-links updates them
		"${EROOT}"/usr/bin/ccache-config --install-links
	fi
}

EXPORT_FUNCTIONS pkg_setup src_unpack src_install pkg_postinst pkg_postrm pkg_pretend
case "${EAPI:-0}" in
	0|1|2|3)die "EAPI=${EAPI} is not supported anymore" ;;
	4|5) ;;
	*) die "EAPI=${EAPI} is not supported" ;;
esac