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#!/bin/sh
# This script is a init script for our bsp. It resides in the bsp release specific folder
# this is the soc specific init script. It assumes that you have only one soc layer
# which holds all your machines.
PHYLINUX_API_VERSION="2"

# Try to find ROOTDIR from arg0 of shell process.
DIR="`dirname $(readlink -f $0)`"

# Try to find ROOTDIR of the Yocto BSP. Walk up the directory tree until we
# find the sources/meta-phytec or .repo directory. Returns the empty string as
# an error code.
find_root_dir() {
	dir=$(readlink -f "$1")  # should return an absoulte path
	while [ ! "$dir" = "/" ]; do
		if [ -d "$dir/.repo" ]; then
		# or [ -d "$dir/sources/meta-phytec" ];
			echo $dir;
			return;
		fi
		dir=$(dirname "$dir")
	done
	# If anchor directory isn't found, function returns the empty strings
	# as an error code.
}

ROOTDIR=$(find_root_dir "$DIR")
if [ "$ROOTDIR" = "" ]; then
	echo >&2 "ERROR: Cannot find root directory of the Yocto BSP."
        echo >&2 "Is '$DIR' in a checkout of a BSP? Aborting..."
	exit 1;
fi

# copy release notes to rootdir, if they are present in phy2octo
RELEASE_UID=$(sed -n 's:.*release_uid="\([^"]*\).*:\1:p' ${ROOTDIR}/.repo/manifest.xml)
RELEASE_NOTES="${ROOTDIR}/.repo/manifests/releasenotes/${RELEASE_UID}"
if [ -e ${RELEASE_NOTES} ]; then
	install -pm 0644 ${RELEASE_NOTES} ${ROOTDIR}/ReleaseNotes
fi

# Folders and Readme
PHYTEC_DIR="${ROOTDIR}/sources/meta-phytec"
install -m 0644 ${PHYTEC_DIR}/conf/doc/HOWTO ${ROOTDIR}

# Setup template directory. Allow caller to overwrite default TEMPLATECONF.
if [ -z "${TEMPLATECONF}" ]; then
	export TEMPLATECONF="${ROOTDIR}/tools/templateconf"
	copy_file_by_priority=${PHYTEC_DIR}/scripts/copy_file_by_priority.py
	install -d ${TEMPLATECONF}
	$copy_file_by_priority conf/bblayers.conf.sample ${TEMPLATECONF}
	$copy_file_by_priority conf/local.conf.sample ${TEMPLATECONF}
	$copy_file_by_priority conf/conf-notes.txt ${TEMPLATECONF}
fi

# Init a build directory if we dont have one.
# NOTE: Since the script 'oe-buildenv-internal' will use the current working
# directory as the base for the build directory, we set the build directory
# explicitly as argument here. So the 'init' script's actions don't depend on
# the current working directory of the caller. This method works for dash, too.
if [ -z "${1}" ]; then
	set -- "${ROOTDIR}/build"
else
	set -- "${ROOTDIR}/${1}"
fi
cd ${ROOTDIR}/sources/poky/
. ./oe-init-build-env > /dev/null

${PHYTEC_DIR}/scripts/init_bblayers.py
${PHYTEC_DIR}/scripts/copy_site_conf.py
${PHYTEC_DIR}/scripts/init_machine.py

container_usage() {
	CONTAINER=$(sed -n 's:.*build_container="\([^"]*\).*:\1:p' ${ROOTDIR}/.repo/manifest.xml)
	if [ ! -z "${CONTAINER}" ]; then
		echo "A docker image can also be used as your build environment.\n"
		echo "Set up your shell environment with:\n"
		echo "    $ docker run --rm -it -v \${PWD}:/\${PWD} ${CONTAINER} --workdir=\${PWD} bash\n"
		echo "Or start a build with:\n"
		echo "    $ docker run --rm -it -v \${PWD}:/\${PWD} ${CONTAINER} --workdir=\${PWD} \\"
		echo "      bash -c '. sources/poky/oe-init-build-env && bitbake phytec-headless-image'"
		echo ""
		echo ""
	fi
}

echo ""
echo "Before you start your work, please check your build/conf/local.conf for"
echo "host specific configuration. Check the documentation especially for:"
echo "   - proxy settings"
echo "   - DL_DIR"
echo "   - SSTATE_DIR"
echo ""
echo "To set up your shell environment for some Yocto work, you have to type this"
echo "command, including the 'dot':"
echo ""
echo "    $ . sources/poky/oe-init-build-env"
echo ""
echo ""
container_usage