# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/www-client/chromium/chromium-5.0.375.23.ebuild,v 1.2 2010/04/29 10:48:09 phajdan.jr Exp $

EAPI="2"
inherit eutils flag-o-matic multilib portability toolchain-funcs

DESCRIPTION="Open-source version of Google Chrome web browser"
HOMEPAGE="http://chromium.org/"
SRC_URI="http://build.chromium.org/buildbot/official/${P}.tar.bz2"

LICENSE="BSD"
SLOT="0"
KEYWORDS="~amd64 ~arm ~x86"
IUSE="mp3 +plugins-symlink x264"

RDEPEND="app-arch/bzip2
	>=dev-libs/libevent-1.4.13
	dev-libs/libxml2
	dev-libs/libxslt
	>=dev-libs/nss-3.12.3
	>=gnome-base/gconf-2.24.0
	>=media-libs/alsa-lib-1.0.19
	media-libs/jpeg:0
	media-libs/libpng
	>=media-video/ffmpeg-0.5_p21602[mp3=,threads,x264=]
	sys-libs/zlib
	>=x11-libs/gtk+-2.14.7
	x11-libs/libXScrnSaver"
#	dev-db/sqlite:3
DEPEND="${RDEPEND}
	dev-lang/perl
	>=dev-util/gperf-3.0.3
	>=dev-util/pkgconfig-0.23
	sys-devel/flex"
RDEPEND+="
	|| (
		x11-themes/gnome-icon-theme
		x11-themes/oxygen-molecule
		x11-themes/tango-icon-theme
		x11-themes/xfce4-icon-theme
	)
	x11-misc/xdg-utils
	virtual/ttf-fonts"

# Incompatible system plugins:
# www-plugins/gecko-mediaplayer, bug #309231.
RDEPEND+="
	plugins-symlink? (
		!www-plugins/gecko-mediaplayer[gnome]
	)"

pkg_setup() {
	if [[ "${ROOT}" == "/" ]]; then
		# Prevent user problems like bug 299777.
		if ! grep -q /dev/shm <<< $(get_mounts); then
			eerror "You don't have tmpfs mounted at /dev/shm."
			eerror "${PN} isn't going to work in that configuration."
			eerror "Please uncomment the /dev/shm entry in /etc/fstab,"
			eerror "run 'mount /dev/shm' and try again."
			die "/dev/shm is not mounted"
		fi
		if [ `stat -c %a /dev/shm` -ne 1777 ]; then
			eerror "/dev/shm does not have correct permissions."
			eerror "${PN} isn't going to work in that configuration."
			eerror "Please run chmod 1777 /dev/shm and try again."
			die "/dev/shm has incorrect permissions"
		fi
	fi

	elog "${PN} might crash occasionally. To get more useful backtraces"
	elog "and submit better bug reports, please read"
	elog "http://www.gentoo.org/proj/en/qa/backtraces.xml"
}

src_prepare() {
	# Prevent automatic -march=pentium4 -msse2 enabling on x86, http://crbug.com/9007
	epatch "${FILESDIR}"/${PN}-drop_sse2-r0.patch

	# Allow supporting more media types provided system ffmpeg supports them.
	epatch "${FILESDIR}"/${PN}-supported-media-mime-types.patch

	# Fix build failure with libpng-1.4, bug 310959.
	epatch "${FILESDIR}"/${PN}-libpng-1.4.patch
}

src_configure() {
	export CHROMIUM_HOME=/usr/$(get_libdir)/chromium-browser

	# Fails to build on arm if we don't do this
	use arm && append-flags -fno-tree-sink

	if use mp3 ; then
		append-cflags -DGENTOO_CHROMIUM_MP3_ENABLED
	fi

	if use x264 ; then
		append-cflags -DGENTOO_CHROMIUM_H264_ENABLED
	fi

	# CFLAGS/LDFLAGS
	mkdir -p "${S}"/.gyp || die "cflags mkdir failed"
	cat << EOF > "${S}"/.gyp/include.gypi || die "cflags cat failed"
{
	'target_defaults': {
		'cflags': [ '${CFLAGS// /','}' ],
		'ldflags': [ '${LDFLAGS// /','}' ],
	},
}
EOF
	export HOME="${S}"

	# Configuration options (system libraries)
	local myconf="-Duse_system_zlib=1 -Duse_system_bzip2=1 -Duse_system_ffmpeg=1 -Duse_system_libevent=1 -Duse_system_libjpeg=1 -Duse_system_libpng=1 -Duse_system_libxml=1 -Duse_system_libxslt=1"
	# -Duse_system_sqlite=1 : http://crbug.com/22208
	# Others still bundled: icu (not possible?), hunspell (changes required for sandbox support)

	# Sandbox paths
	myconf="${myconf} -Dlinux_sandbox_path=${CHROMIUM_HOME}/chrome_sandbox -Dlinux_sandbox_chrome_path=${CHROMIUM_HOME}/chrome"

	# Disable the V8 snapshot. It breaks the build on hardened (bug #301880),
	# and the performance gain isn't worth it.
	myconf="${myconf} -Dv8_use_snapshot=0"

	# Use target arch detection logic from bug #296917.
	local myarch="$ABI"
	[[ $myarch = "" ]] && myarch="$ARCH"

	if [[ $myarch = amd64 ]] ; then
		myconf="${myconf} -Dtarget_arch=x64"
	elif [[ $myarch = x86 ]] ; then
		myconf="${myconf} -Dtarget_arch=ia32"
	elif [[ $myarch = arm ]] ; then
		myconf="${myconf} -Dtarget_arch=arm -Ddisable_nacl=1 -Dlinux_use_tcmalloc=0"
	else
		die "Failed to determine target arch, got '$myarch'."
	fi

	if [[ "$(gcc-major-version)$(gcc-minor-version)" == "44" ]]; then
		myconf="${myconf} -Dno_strict_aliasing=1 -Dgcc_version=44"
	fi

	# Make sure that -Werror doesn't get added to CFLAGS by the build system.
	# Depending on GCC version the warnings are different and we don't want
	# the build to fail because of that.
	myconf="${myconf} -Dwerror="

	build/gyp_chromium -f make build/all.gyp ${myconf} --depth=. || die "gyp failed"
}

src_compile() {
	emake -r V=1 chrome chrome_sandbox BUILDTYPE=Release \
		rootdir="${S}" \
		CC=$(tc-getCC) \
		CXX=$(tc-getCXX) \
		AR=$(tc-getAR) \
		RANLIB=$(tc-getRANLIB) \
		|| die "compilation failed"
}

src_install() {
	# Chromium does not have "install" target in the build system.
	export CHROMIUM_HOME=/usr/$(get_libdir)/chromium-browser

	dodir ${CHROMIUM_HOME}

	exeinto ${CHROMIUM_HOME}
	doexe out/Release/chrome
	doexe out/Release/chrome_sandbox
	fperms 4755 ${CHROMIUM_HOME}/chrome_sandbox
	doexe out/Release/xdg-settings
	doexe "${FILESDIR}"/chromium-launcher.sh

	insinto ${CHROMIUM_HOME}
	doins out/Release/chrome.pak

	doins -r out/Release/locales
	doins -r out/Release/resources

	# chrome.1 is for chromium --help
	newman out/Release/chrome.1 chrome.1
	newman out/Release/chrome.1 chromium.1

	# Chromium looks for these in its folder
	# See media_posix.cc and base_paths_linux.cc
	dosym /usr/$(get_libdir)/libavcodec.so.52 ${CHROMIUM_HOME}
	dosym /usr/$(get_libdir)/libavformat.so.52 ${CHROMIUM_HOME}
	dosym /usr/$(get_libdir)/libavutil.so.50 ${CHROMIUM_HOME}

	# Plugins symlink, optional wrt bug #301911
	if use plugins-symlink; then
		dosym /usr/$(get_libdir)/nsbrowser/plugins ${CHROMIUM_HOME}/plugins
	fi

	# Icon and desktop entry
	newicon out/Release/product_logo_48.png ${PN}-browser.png
	dosym ${CHROMIUM_HOME}/chromium-launcher.sh /usr/bin/chromium
	make_desktop_entry chromium "Chromium" ${PN}-browser "Network;WebBrowser"
	sed -e "/^Exec/s/$/ %U/" -i "${D}"/usr/share/applications/*.desktop \
		|| die "desktop file sed failed"
	# Gnome default application entry
	dodir /usr/share/gnome-control-center/default-apps
	insinto /usr/share/gnome-control-center/default-apps
	doins "${FILESDIR}"/chromium.xml
}