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# Copyright 1999-2009 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/perl-module.eclass,v 1.121 2010/01/13 15:15:45 tove Exp $
#
# Author: Seemant Kulleen <seemant@gentoo.org>

# @ECLASS: perl-module.eclass
# @MAINTAINER:
# perl@gentoo.org
# @BLURB: eclass for perl modules
# @DESCRIPTION:
# The perl-module eclass is designed to allow easier installation of perl
# modules, and their incorporation into the Gentoo Linux system.

inherit eutils base
[[ ${CATEGORY} == "perl-core" ]] && inherit alternatives

PERL_EXPF="src_unpack src_compile src_test src_install"

case "${EAPI:-0}" in
	0|1)
		PERL_EXPF="${PERL_EXPF} pkg_setup pkg_preinst pkg_postinst pkg_prerm pkg_postrm"
		;;
	2)
		PERL_EXPF="${PERL_EXPF} src_prepare src_configure"
		[[ ${CATEGORY} == "perl-core" ]] && \
			PERL_EXPF="${PERL_EXPF} pkg_postinst pkg_postrm"

		case "${GENTOO_DEPEND_ON_PERL:-yes}" in
			yes)
				DEPEND="dev-lang/perl[-build]"
				RDEPEND="${DEPEND}"
				;;
		esac
		;;
esac

EXPORT_FUNCTIONS ${PERL_EXPF}

DESCRIPTION="Based on the $ECLASS eclass"

LICENSE="${LICENSE:-|| ( Artistic GPL-2 )}"

[[ -z "${SRC_URI}" && -z "${MODULE_A}" ]] && MODULE_A="${MY_P:-${P}}.tar.gz"
[[ -z "${SRC_URI}" && -n "${MODULE_AUTHOR}" ]] && \
	SRC_URI="mirror://cpan/authors/id/${MODULE_AUTHOR:0:1}/${MODULE_AUTHOR:0:2}/${MODULE_AUTHOR}/${MODULE_SECTION}/${MODULE_A}"
[[ -z "${HOMEPAGE}" ]] && \
	HOMEPAGE="http://search.cpan.org/dist/${MY_PN:-${PN}}/"

SRC_PREP="no"
SRC_TEST="skip"
PREFER_BUILDPL="yes"

PERL_VERSION=""
SITE_ARCH=""
SITE_LIB=""
ARCH_LIB=""
VENDOR_ARCH=""
VENDOR_LIB=""

pm_echovar=""
perlinfo_done=false

perl-module_src_unpack() {
	base_src_unpack
	has src_prepare ${PERL_EXPF} || perl-module_src_prepare
}

perl-module_src_prepare() {
	has src_prepare ${PERL_EXPF} && base_src_prepare
	esvn_clean
}

perl-module_src_configure() {
	perl-module_src_prep
}

perl-module_src_prep() {
	[[ ${SRC_PREP} = yes ]] && return 0
	SRC_PREP="yes"

	${perlinfo_done} || perlinfo

	export PERL_MM_USE_DEFAULT=1
	# Disable ExtUtils::AutoInstall from prompting
	export PERL_EXTUTILS_AUTOINSTALL="--skipdeps"

	if [[ ${PREFER_BUILDPL} == yes && -f Build.PL ]] ; then
		einfo "Using Module::Build"
		if [[ ${DEPEND} != *virtual/perl-Module-Build* && ${PN} != Module-Build ]] ; then
			ewarn "QA Notice: The ebuild uses Module::Build but doesn't depend on it."
			ewarn "           Add virtual/perl-Module-Build to DEPEND!"
		fi
		perl Build.PL \
			--installdirs=vendor \
			--libdoc= \
			--destdir="${D}" \
			--create_packlist=0 \
			${myconf} \
			<<< "${pm_echovar}" \
				|| die "Unable to build! (are you using USE=\"build\"?)"
	elif [[ -f Makefile.PL ]] ; then
		einfo "Using ExtUtils::MakeMaker"
		perl Makefile.PL \
			PREFIX=/usr \
			INSTALLDIRS=vendor \
			INSTALLMAN3DIR='none' \
			DESTDIR="${D}" \
			${myconf} \
			<<< "${pm_echovar}" \
				|| die "Unable to build! (are you using USE=\"build\"?)"
	fi
	if [[ ! -f Build.PL && ! -f Makefile.PL ]] ; then
		einfo "No Make or Build file detected..."
		return
	fi
}

perl-module_src_compile() {
	${perlinfo_done} || perlinfo

	has src_configure ${PERL_EXPF} || perl-module_src_prep

	if [[ -f Build ]] ; then
		./Build build \
			|| die "compilation failed"
	elif [[ -f Makefile ]] ; then
		emake \
			OTHERLDFLAGS="${LDFLAGS}" \
			${mymake} \
				|| die "compilation failed"
#			OPTIMIZE="${CFLAGS}" \
	fi
}

# For testers:
#  This code attempts to work out your threadingness from MAKEOPTS
#  and apply them to Test::Harness.
#
#  If you want more verbose testing, set TEST_VERBOSE=1
#  in your bashrc | /etc/make.conf | ENV
#
# For ebuild writers:
#  If you wish to enable default tests w/ 'make test' ,
#
#   SRC_TEST="do"
#
#  If you wish to have threads run in parallel ( using the users makeopts )
#  all of the following have been tested to work.
#
#   SRC_TEST="do parallel"
#   SRC_TEST="parallel"
#   SRC_TEST="parallel do"
#   SRC_TEST=parallel
#

perl-module_src_test() {
	if has 'do' ${SRC_TEST} || has 'parallel' ${SRC_TEST} ; then
		if has "${TEST_VERBOSE:-0}" 0 && has 'parallel' ${SRC_TEST} ; then
			export HARNESS_OPTIONS=j$(echo -j1 ${MAKEOPTS} | sed -r "s/.*(-j\s*|--jobs=)([0-9]+).*/\2/" )
			einfo "Test::Harness Jobs=${HARNESS_OPTIONS}"
		fi
		${perlinfo_done} || perlinfo
		if [[ -f Build ]] ; then
			./Build test verbose=${TEST_VERBOSE:-0} || die "test failed"
		elif [[ -f Makefile ]] ; then
			emake test TEST_VERBOSE=${TEST_VERBOSE:-0} || die "test failed"
		fi
	fi
}

perl-module_src_install() {
	local f
	${perlinfo_done} || perlinfo

	if [[ -z ${mytargets} ]] ; then
		case "${CATEGORY}" in
			dev-perl|perl-core) mytargets="pure_install" ;;
			*)                  mytargets="install" ;;
		esac
	fi

	if [[ -f Build ]] ; then
		./Build ${mytargets} \
			|| die "./Build ${mytargets} failed"
	elif [[ -f Makefile ]] ; then
		emake ${myinst} ${mytargets} \
			|| die "emake ${myinst} ${mytargets} failed"
	fi

	if [[ -d "${D}"/usr/share/man ]] ; then
#		einfo "Cleaning out stray man files"
		find "${D}"/usr/share/man -type f -name "*.3pm" -delete
		find "${D}"/usr/share/man -depth -type d -empty -delete
	fi

	fixlocalpod

	for f in Change* CHANGES README* TODO ${mydoc}; do
		[[ -s ${f} ]] && dodoc ${f}
	done

	if [[ -d ${D}/${VENDOR_LIB} ]] ; then
		find "${D}/${VENDOR_LIB}" -type f -a \( -name .packlist \
			-o \( -name '*.bs' -a -empty \) \) -delete
		find "${D}/${VENDOR_LIB}" -depth -mindepth 1 -type d -empty -delete
	fi

	find "${D}" -type f -not -name '*.so' -print0 | while read -rd '' f ; do
		if file "${f}" | grep -q -i " text" ; then
			grep -q "${D}" "${f}" && ewarn "QA: File contains a temporary path ${f}"
			sed -i -e "s:${D}:/:g" "${f}"
		fi
	done

	linkduallifescripts
}

perl-module_pkg_setup() {
	${perlinfo_done} || perlinfo
}

perl-module_pkg_preinst() {
	${perlinfo_done} || perlinfo
}

perl-module_pkg_postinst() {
	linkduallifescripts
}

perl-module_pkg_prerm() { : ; }

perl-module_pkg_postrm() {
	linkduallifescripts
}

perlinfo() {
	perlinfo_done=true

	local f version install{{site,vendor}{arch,lib},archlib}
	for f in version install{{site,vendor}{arch,lib},archlib} ; do
		eval "$(perl -V:${f} )"
	done
	PERL_VERSION=${version}
	SITE_ARCH=${installsitearch}
	SITE_LIB=${installsitelib}
	ARCH_LIB=${installarchlib}
	VENDOR_LIB=${installvendorlib}
	VENDOR_ARCH=${installvendorarch}
}

fixlocalpod() {
	find "${D}" -type f -name perllocal.pod -delete
	find "${D}" -depth -mindepth 1 -type d -empty -delete
}

linkduallifescripts() {
	if [[ ${CATEGORY} != perl-core ]] || ! has_version ">=dev-lang/perl-5.8.8-r8" ; then
		return 0
	fi

	local i ff
	if has "${EBUILD_PHASE:-none}" "postinst" "postrm" ; then
		for i in "${DUALLIFESCRIPTS[@]}" ; do
			alternatives_auto_makesym "/usr/bin/${i}" "/usr/bin/${i}-[0-9]*"
			ff=`echo "${ROOT}"/usr/share/man/man1/${i}-${PV}-${P}.1*`
			ff=${ff##*.1}
			alternatives_auto_makesym "/usr/share/man/man1/${i}.1${ff}" "/usr/share/man/man1/${i}-[0-9]*"
		done
	else
		pushd "${D}" > /dev/null
		for i in $(find usr/bin -maxdepth 1 -type f 2>/dev/null) ; do
			mv ${i}{,-${PV}-${P}} || die
			DUALLIFESCRIPTS[${#DUALLIFESCRIPTS[*]}]=${i##*/}
			if [[ -f usr/share/man/man1/${i##*/}.1 ]] ; then
				mv usr/share/man/man1/${i##*/}{.1,-${PV}-${P}.1} || die
			fi
		done
		popd > /dev/null
	fi
}