#!/bin/bash

fetch_source() {
	if [ -n "$REQUIRED_XORG_DRIVERS" ]; then
		local drv
		mkdir -p src
		cde src
		for drv in $REQUIRED_XORG_DRIVERS; do
			drv=${drv%//*}
			[ -d "${drv}/.git" ] && continue
			git clone "git://anongit.freedesktop.org/xorg/driver/${drv}" "${drv}" || perror "Could not clone $drv"
		done
		cd -
	fi
}

build() {
	# copy udev rules to correct location
	if [ -d "${MODULE_BUILD_DIR}/etc/udev" ]; then
		cp -r "${MODULE_BUILD_DIR}/etc/udev" "${MODULE_BUILD_DIR}/lib/"
	fi
	rm -rf -- "${MODULE_BUILD_DIR}/etc/udev"

	# This used to freeze/crashe X with certain gfx cards (radeon R240)
	# /usr/lib/xorg/modules/libglamoregl.so
	# Newer X versions seems to have this fixed, so we included it again

	# See if we should build more up to date versions of drivers
	if [ -n "$REQUIRED_XORG_DRIVERS" ]; then
		local repo vers drv
		pinfo "Compiling requested xorg drivers from source"
		mkdir -p "${MODULE_BUILD_DIR}/usr/lib/xorg/modules/drivers"
		for drv in $REQUIRED_XORG_DRIVERS; do
			repo=${drv%//*}
			vers=${drv#*//}
			pinfo "Compiling $drv"
			cde "${MODULE_WORK_DIR}/src/${repo}"
			if [ "$drv" != "$vers" ]; then
				git checkout "$vers" || pwarn "Could not checkout $vers for $repo"
			fi
			./autogen.sh || perror "Autogen for $drv failed"
			./configure || perror "configure for $drv failed"
			make || perror "Make for $drv failed"
			find . -type f -name "*_drv.so" -exec cp {} "${MODULE_BUILD_DIR}/usr/lib/xorg/modules/drivers" \;
		done
	fi
	# Extra .deb packages
	local deb dir
	for deb in $REQUIRED_DEB_PACKAGES; do
		dir="${MODULE_WORK_DIR}/${deb##*/}"
		download "$deb" "$dir"
		apt install -y "$dir" || perror "apt install $dir failed."
	done
}

post_copy() {
	mkdir -p "${TARGET_BUILD_DIR}/etc/X11"
	[ ! -e ${TARGET_BUILD_DIR}/etc/X11/X ] && ln -s /usr/bin/Xorg ${TARGET_BUILD_DIR}/etc/X11/X
}