eclass/font.eclass - platform/external/gentoo/overlays/gentoo - Git at Google

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

 # @ECLASS: font.eclass
 # @MAINTAINER:
 # fonts@gentoo.org
 # @BLURB: Eclass to make font installation uniform

 inherit eutils

 EXPORT_FUNCTIONS pkg_setup src_install pkg_postinst pkg_postrm

 # @ECLASS-VARIABLE: FONT_SUFFIX
 # @DEFAULT_UNSET
 # @REQUIRED
 # @DESCRIPTION:
 # Space delimited list of font suffixes to install.
 FONT_SUFFIX=${FONT_SUFFIX:-}

 # @ECLASS-VARIABLE: FONT_S
 # @REQUIRED
 # @DESCRIPTION:
 # Space delimited list of directories containing the fonts.
 FONT_S=${FONT_S:-${S}}

 # @ECLASS-VARIABLE: FONT_PN
 # @DESCRIPTION:
 # Font name (ie. last part of FONTDIR).
 FONT_PN=${FONT_PN:-${PN}}

 # @ECLASS-VARIABLE: FONTDIR
 # @DESCRIPTION:
 # Full path to installation directory.
 FONTDIR=${FONTDIR:-/usr/share/fonts/${FONT_PN}}

 # @ECLASS-VARIABLE: FONT_CONF
 # @DEFAULT_UNSET
 # @DESCRIPTION:
 # Array containing fontconfig conf files to install.
 FONT_CONF=( "" )

 # @ECLASS-VARIABLE: DOCS
 # @DEFAULT_UNSET
 # @DESCRIPTION:
 # Space delimited list of docs to install.
 # We always install these:
 # COPYRIGHT README{,.txt} NEWS AUTHORS BUGS ChangeLog FONTLOG.txt
 DOCS=${DOCS:-}

 IUSE="X"

 DEPEND="X? (
 		x11-apps/mkfontdir
 		media-fonts/encodings
 	)"
 RDEPEND=""

 # @FUNCTION: font_xfont_config
 # @DESCRIPTION:
 # Generate Xorg font files (mkfontscale/mkfontdir).
 font_xfont_config() {
 	local dir_name
 	if has X ${IUSE//+} && use X ; then
 		dir_name="${1:-${FONT_PN}}"
 		ebegin "Creating fonts.scale & fonts.dir in ${dir_name##*/}"
 		rm -f "${ED}${FONTDIR}/${1//${S}/}"/{fonts.{dir,scale},encodings.dir}
 		mkfontscale "${ED}${FONTDIR}/${1//${S}/}"
 		mkfontdir \
 			-e ${EPREFIX}/usr/share/fonts/encodings \
 			-e ${EPREFIX}/usr/share/fonts/encodings/large \
 			"${ED}${FONTDIR}/${1//${S}/}"
 		eend $?
 		if [[ -e fonts.alias ]] ; then
 			doins fonts.alias
 		fi
 	fi
 }

 # @FUNCTION: font_fontconfig
 # @DESCRIPTION:
 # Install fontconfig conf files given in FONT_CONF.
 font_fontconfig() {
 	local conffile
 	if [[ -n ${FONT_CONF[@]} ]]; then
 		insinto /etc/fonts/conf.avail/
 		for conffile in "${FONT_CONF[@]}"; do
 			[[ -e  ${conffile} ]] && doins ${conffile}
 		done
 	fi
 }

 # @FUNCTION: font_cleanup_dirs
 # @DESCRIPTION:
 # Remove font directories containing only generated files.
 font_cleanup_dirs() {
 	local genfiles="encodings.dir fonts.alias fonts.cache-1 fonts.dir fonts.scale"
 	# fonts.alias isn't generated but it's a special case (see below).
 	local d f g generated candidate otherfile

 	ebegin "Cleaning up font directories"
 	find -L "${EROOT}"usr/share/fonts/ -type d -print0 | while read -d $'\0' d; do
 		candidate=false
 		otherfile=false
 		for f in "${d}"/*; do
 			generated=false
 			# make sure this is a file and not a subdir
 			[[ -e ${f} || -L ${f} ]] || continue
 			for g in ${genfiles}; do
 				if [[ ${f##*/} == ${g} ]]; then
 					# this is a generated file
 					generated=true
 					break
 				fi
 			done
 			# if the file is a generated file then we know this is a font dir (as
 			# opposed to something like encodings or util) and a candidate for
 			# removal.  if it's not generated then it's an "otherfile".
 			${generated} && candidate=true || otherfile=true
 			# if the directory is both a candidate for removal and contains at
 			# least one "otherfile" then don't remove it.
 			[[ ${candidate} == ${otherfile} ]] && break
 		done
 		# if in the end we only have generated files, purge the directory.
 		if [[ ${candidate} == true && ${otherfile} == false ]]; then
 			# we don't want to remove fonts.alias files that were installed by
 			# media-fonts/font-alias. any other fonts.alias files will have
 			# already been unmerged with their packages.
 			for g in ${genfiles}; do
 				[[ ${g} != fonts.alias && ( -e ${d}/${g} || -L ${d}/${g} ) ]] \
 					&& rm "${d}"/${g}
 			done
 			# if there's nothing left remove the directory
 			find "${d}" -maxdepth 0 -type d -empty -exec rmdir '{}' \;
 		fi
 	done
 	eend 0
 }

 # @FUNCTION: font_pkg_setup
 # @DESCRIPTION:
 # The font pkg_setup function.
 # Collision protection and Prefix compat for eapi < 3.
 font_pkg_setup() {
 	# Prefix compat
 	case ${EAPI:-0} in
 		0|1|2)
 			if ! use prefix; then
 				EPREFIX=
 				ED=${D}
 				EROOT=${ROOT}
 				[[ ${EROOT} = */ ]] || EROOT+="/"
 			fi
 			;;
 	esac

 	# make sure we get no collisions
 	# setup is not the nicest place, but preinst doesn't cut it
 	[[ -e "${EROOT}/${FONTDIR}/fonts.cache-1" ]] && rm -f "${EROOT}/${FONTDIR}/fonts.cache-1"
 }

 # @FUNCTION: font_src_install
 # @DESCRIPTION:
 # The font src_install function.
 font_src_install() {
 	local dir suffix commondoc

 	set -- ${FONT_S:-${S}}
 	if [[ $# -gt 1 ]]; then
 		# if we have multiple FONT_S elements then we want to recreate the dir
 		# structure
 		for dir in ${FONT_S}; do
 			pushd "${dir}" > /dev/null
 			insinto "${FONTDIR}/${dir//${S}/}"
 			for suffix in ${FONT_SUFFIX}; do
 				doins *.${suffix}
 			done
 			font_xfont_config "${dir}"
 			popd > /dev/null
 		done
 	else
 		pushd "${FONT_S}" > /dev/null
 		insinto "${FONTDIR}"
 		for suffix in ${FONT_SUFFIX}; do
 			doins *.${suffix}
 		done
 		font_xfont_config
 		popd > /dev/null
 	fi

 	font_fontconfig

 	[[ -n ${DOCS} ]] && { dodoc ${DOCS} || die "docs installation failed" ; }

 	# install common docs
 	for commondoc in COPYRIGHT README{,.txt} NEWS AUTHORS BUGS ChangeLog FONTLOG.txt; do
 		[[ -s ${commondoc} ]] && dodoc ${commondoc}
 	done
 }

 # @FUNCTION: font_pkg_postinst
 # @DESCRIPTION:
 # The font pkg_postinst function.
 font_pkg_postinst() {
 	# unreadable font files = fontconfig segfaults
 	find "${EROOT}"usr/share/fonts/ -type f '!' -perm 0644 -print0 \
 		| xargs -0 chmod -v 0644 2>/dev/null

 	if [[ -n ${FONT_CONF[@]} ]]; then
 		local conffile
 		echo
 		elog "The following fontconfig configuration files have been installed:"
 		elog
 		for conffile in "${FONT_CONF[@]}"; do
 			if [[ -e ${EROOT}etc/fonts/conf.avail/$(basename ${conffile}) ]]; then
 				elog "  $(basename ${conffile})"
 			fi
 		done
 		elog
 		elog "Use \`eselect fontconfig\` to enable/disable them."
 		echo
 	fi

 	if has_version media-libs/fontconfig && [[ ${ROOT} == / ]]; then
 		ebegin "Updating global fontcache"
 		fc-cache -fs
 		eend $?
 	else
 		einfo "Skipping fontcache update (media-libs/fontconfig is not installed or ROOT != /)"
 	fi
 }

 # @FUNCTION: font_pkg_postrm
 # @DESCRIPTION:
 # The font pkg_postrm function.
 font_pkg_postrm() {
 	font_cleanup_dirs

 	# unreadable font files = fontconfig segfaults
 	find "${EROOT}"usr/share/fonts/ -type f '!' -perm 0644 -print0 \
 		| xargs -0 chmod -v 0644 2>/dev/null

 	if has_version media-libs/fontconfig && [[ ${ROOT} == / ]]; then
 		ebegin "Updating global fontcache"
 		fc-cache -fs
 		eend $?
 	else
 		einfo "Skipping fontcache update (media-libs/fontconfig is not installed or ROOT != /)"
 	fi
 }
	# Copyright 1999-2015 Gentoo Foundation
	# Distributed under the terms of the GNU General Public License v2
	# $Id$

	# @ECLASS: font.eclass
	# @MAINTAINER:
	# fonts@gentoo.org
	# @BLURB: Eclass to make font installation uniform

	inherit eutils

	EXPORT_FUNCTIONS pkg_setup src_install pkg_postinst pkg_postrm

	# @ECLASS-VARIABLE: FONT_SUFFIX
	# @DEFAULT_UNSET
	# @REQUIRED
	# @DESCRIPTION:
	# Space delimited list of font suffixes to install.
	FONT_SUFFIX=${FONT_SUFFIX:-}

	# @ECLASS-VARIABLE: FONT_S
	# @REQUIRED
	# @DESCRIPTION:
	# Space delimited list of directories containing the fonts.
	FONT_S=${FONT_S:-${S}}

	# @ECLASS-VARIABLE: FONT_PN
	# @DESCRIPTION:
	# Font name (ie. last part of FONTDIR).
	FONT_PN=${FONT_PN:-${PN}}

	# @ECLASS-VARIABLE: FONTDIR
	# @DESCRIPTION:
	# Full path to installation directory.
	FONTDIR=${FONTDIR:-/usr/share/fonts/${FONT_PN}}

	# @ECLASS-VARIABLE: FONT_CONF
	# @DEFAULT_UNSET
	# @DESCRIPTION:
	# Array containing fontconfig conf files to install.
	FONT_CONF=( "" )

	# @ECLASS-VARIABLE: DOCS
	# @DEFAULT_UNSET
	# @DESCRIPTION:
	# Space delimited list of docs to install.
	# We always install these:
	# COPYRIGHT README{,.txt} NEWS AUTHORS BUGS ChangeLog FONTLOG.txt
	DOCS=${DOCS:-}

	IUSE="X"

	DEPEND="X? (
	x11-apps/mkfontdir
	media-fonts/encodings
	)"
	RDEPEND=""

	# @FUNCTION: font_xfont_config
	# @DESCRIPTION:
	# Generate Xorg font files (mkfontscale/mkfontdir).
	font_xfont_config() {
	local dir_name
	if has X ${IUSE//+} && use X ; then
	dir_name="${1:-${FONT_PN}}"
	ebegin "Creating fonts.scale & fonts.dir in ${dir_name##*/}"
	rm -f "${ED}${FONTDIR}/${1//${S}/}"/{fonts.{dir,scale},encodings.dir}
	mkfontscale "${ED}${FONTDIR}/${1//${S}/}"
	mkfontdir \
	-e ${EPREFIX}/usr/share/fonts/encodings \
	-e ${EPREFIX}/usr/share/fonts/encodings/large \
	"${ED}${FONTDIR}/${1//${S}/}"
	eend $?
	if [[ -e fonts.alias ]] ; then
	doins fonts.alias
	fi
	fi
	}

	# @FUNCTION: font_fontconfig
	# @DESCRIPTION:
	# Install fontconfig conf files given in FONT_CONF.
	font_fontconfig() {
	local conffile
	if [[ -n ${FONT_CONF[@]} ]]; then
	insinto /etc/fonts/conf.avail/
	for conffile in "${FONT_CONF[@]}"; do
	[[ -e ${conffile} ]] && doins ${conffile}
	done
	fi
	}

	# @FUNCTION: font_cleanup_dirs
	# @DESCRIPTION:
	# Remove font directories containing only generated files.
	font_cleanup_dirs() {
	local genfiles="encodings.dir fonts.alias fonts.cache-1 fonts.dir fonts.scale"
	# fonts.alias isn't generated but it's a special case (see below).
	local d f g generated candidate otherfile

	ebegin "Cleaning up font directories"
	find -L "${EROOT}"usr/share/fonts/ -type d -print0 \| while read -d $'\0' d; do
	candidate=false
	otherfile=false
	for f in "${d}"/*; do
	generated=false
	# make sure this is a file and not a subdir
	[[ -e ${f} \|\| -L ${f} ]] \|\| continue
	for g in ${genfiles}; do
	if [[ ${f##*/} == ${g} ]]; then
	# this is a generated file
	generated=true
	break
	fi
	done
	# if the file is a generated file then we know this is a font dir (as
	# opposed to something like encodings or util) and a candidate for
	# removal. if it's not generated then it's an "otherfile".
	${generated} && candidate=true \|\| otherfile=true
	# if the directory is both a candidate for removal and contains at
	# least one "otherfile" then don't remove it.
	[[ ${candidate} == ${otherfile} ]] && break
	done
	# if in the end we only have generated files, purge the directory.
	if [[ ${candidate} == true && ${otherfile} == false ]]; then
	# we don't want to remove fonts.alias files that were installed by
	# media-fonts/font-alias. any other fonts.alias files will have
	# already been unmerged with their packages.
	for g in ${genfiles}; do
	[[ ${g} != fonts.alias && ( -e ${d}/${g} \|\| -L ${d}/${g} ) ]] \
	&& rm "${d}"/${g}
	done
	# if there's nothing left remove the directory
	find "${d}" -maxdepth 0 -type d -empty -exec rmdir '{}' \;
	fi
	done
	eend 0
	}

	# @FUNCTION: font_pkg_setup
	# @DESCRIPTION:
	# The font pkg_setup function.
	# Collision protection and Prefix compat for eapi < 3.
	font_pkg_setup() {
	# Prefix compat
	case ${EAPI:-0} in
	0\|1\|2)
	if ! use prefix; then
	EPREFIX=
	ED=${D}
	EROOT=${ROOT}
	[[ ${EROOT} = */ ]] \|\| EROOT+="/"
	fi
	;;
	esac

	# make sure we get no collisions
	# setup is not the nicest place, but preinst doesn't cut it
	[[ -e "${EROOT}/${FONTDIR}/fonts.cache-1" ]] && rm -f "${EROOT}/${FONTDIR}/fonts.cache-1"
	}

	# @FUNCTION: font_src_install
	# @DESCRIPTION:
	# The font src_install function.
	font_src_install() {
	local dir suffix commondoc

	set -- ${FONT_S:-${S}}
	if [[ $# -gt 1 ]]; then
	# if we have multiple FONT_S elements then we want to recreate the dir
	# structure
	for dir in ${FONT_S}; do
	pushd "${dir}" > /dev/null
	insinto "${FONTDIR}/${dir//${S}/}"
	for suffix in ${FONT_SUFFIX}; do
	doins *.${suffix}
	done
	font_xfont_config "${dir}"
	popd > /dev/null
	done
	else
	pushd "${FONT_S}" > /dev/null
	insinto "${FONTDIR}"
	for suffix in ${FONT_SUFFIX}; do
	doins *.${suffix}
	done
	font_xfont_config
	popd > /dev/null
	fi

	font_fontconfig

	[[ -n ${DOCS} ]] && { dodoc ${DOCS} \|\| die "docs installation failed" ; }

	# install common docs
	for commondoc in COPYRIGHT README{,.txt} NEWS AUTHORS BUGS ChangeLog FONTLOG.txt; do
	[[ -s ${commondoc} ]] && dodoc ${commondoc}
	done
	}

	# @FUNCTION: font_pkg_postinst
	# @DESCRIPTION:
	# The font pkg_postinst function.
	font_pkg_postinst() {
	# unreadable font files = fontconfig segfaults
	find "${EROOT}"usr/share/fonts/ -type f '!' -perm 0644 -print0 \
	\| xargs -0 chmod -v 0644 2>/dev/null

	if [[ -n ${FONT_CONF[@]} ]]; then
	local conffile
	echo
	elog "The following fontconfig configuration files have been installed:"
	elog
	for conffile in "${FONT_CONF[@]}"; do
	if [[ -e ${EROOT}etc/fonts/conf.avail/$(basename ${conffile}) ]]; then
	elog " $(basename ${conffile})"
	fi
	done
	elog
	elog "Use \`eselect fontconfig\` to enable/disable them."
	echo
	fi

	if has_version media-libs/fontconfig && [[ ${ROOT} == / ]]; then
	ebegin "Updating global fontcache"
	fc-cache -fs
	eend $?
	else
	einfo "Skipping fontcache update (media-libs/fontconfig is not installed or ROOT != /)"
	fi
	}

	# @FUNCTION: font_pkg_postrm
	# @DESCRIPTION:
	# The font pkg_postrm function.
	font_pkg_postrm() {
	font_cleanup_dirs

	# unreadable font files = fontconfig segfaults
	find "${EROOT}"usr/share/fonts/ -type f '!' -perm 0644 -print0 \
	\| xargs -0 chmod -v 0644 2>/dev/null

	if has_version media-libs/fontconfig && [[ ${ROOT} == / ]]; then
	ebegin "Updating global fontcache"
	fc-cache -fs
	eend $?
	else
	einfo "Skipping fontcache update (media-libs/fontconfig is not installed or ROOT != /)"
	fi
	}