jenkins.sh

#!/bin/bash
#===============================================================================
#
#  jenkins.sh
#
#  Copyright (C) 2015 by Digi International Inc.
#  All rights reserved.
#
#  This program is free software; you can redistribute it and/or modify it
#  under the terms of the GNU General Public License version 2 as published by
#  the Free Software Foundation.
#
#  Description: U-Boot jenkins build script
#
#  Parameters from the environment (not all needed):
#    DUB_PLATFORMS:      Platforms to build
#    DUB_REVISION:       Revision of the U-Boot repository
#    DUB_GIT_URL:        U-Boot repo url
#    DUB_TOOLCHAIN_URL:  Toolchain installer base url
#
#===============================================================================

set -e

# <platform> <uboot_make_target> <toolchain_type>
while read pl mt tt; do
	AVAILABLE_PLATFORMS="${AVAILABLE_PLATFORMS:+${AVAILABLE_PLATFORMS} }${pl}"
	eval "${pl}_make_target=\"${mt}\""
	eval "${pl}_toolchain_type=\"${tt}\""
done<<-_EOF_
	ccimx6qsbc       u-boot.imx  cortexa9hf
	ccimx6qsbc512MB  u-boot.imx  cortexa9hf
	ccimx6dlsbc      u-boot.imx  cortexa9hf
_EOF_

# Set default values if not provided by Jenkins
DUB_GIT_URL="${DUB_GIT_URL:-ssh://git@stash.digi.com/uboot/u-boot-denx.git}"
DUB_TOOLCHAIN_URL="${DUB_TOOLCHAIN_URL:-http://build-linux.digi.com/yocto/toolchain}"
DUB_PLATFORMS="${DUB_PLATFORMS:-$(echo ${AVAILABLE_PLATFORMS})}"

error() {
	printf "${1}"
	exit 1
}

# Sanity check (Jenkins environment)
[ -z "${WORKSPACE}" ] && error "WORKSPACE not specified"

printf "\n[INFO] Build U-Boot \"${DUB_REVISION}\" for \"${DUB_PLATFORMS}\"\n\n"

# Remove nested directories from the revision
DUB_REVISION_SANE="$(echo ${DUB_REVISION} | tr '/' '_')"

DUB_IMGS_DIR="${WORKSPACE}/images"
DUB_TOOLCHAIN_DIR="${WORKSPACE}/toolchain"
DUB_UBOOT_DIR="${WORKSPACE}/u-boot${DUB_REVISION_SANE:+-${DUB_REVISION_SANE}}.git"
rm -rf ${DUB_IMGS_DIR} ${DUB_TOOLCHAIN_DIR} ${DUB_UBOOT_DIR}

mkdir -p ${DUB_IMGS_DIR} ${DUB_TOOLCHAIN_DIR} ${DUB_UBOOT_DIR}
if pushd ${DUB_UBOOT_DIR}; then
	# Install U-Boot
	git clone ${DUB_GIT_URL} .
	if [ -n "${DUB_REVISION}" -a "${DUB_REVISION}" != "master" ]; then
		git checkout ${DUB_REVISION}
	fi

	CPUS="$(echo /sys/devices/system/cpu/cpu[0-9]* | wc -w)"
	[ ${CPUS} -gt 1 ] && MAKE_JOBS="-j${CPUS}"

	for platform in ${DUB_PLATFORMS}; do
		# Build in a sub-shell to avoid mixing environments for different platform
		(
			printf "\n[PLATFORM: ${platform} - CPUS: ${CPUS}]\n"

			# Install toolchain
			eval TOOLCHAIN_TYPE=\"\${${platform}_toolchain_type}\"
			for TLABEL in ${DUB_REVISION_SANE} default; do
				TLABEL="${TLABEL}-${TOOLCHAIN_TYPE}"
				# If the toolchain is already installed exit the loop
				[ -d "${DUB_TOOLCHAIN_DIR}/${TLABEL}" ] && break
				if wget -q --spider "${DUB_TOOLCHAIN_URL}/toolchain-${TLABEL}.sh"; then
					printf "\n[INFO] Installing toolchain-${TLABEL}.sh\n\n"
					tmp_toolchain="$(mktemp /tmp/toolchain.XXXXXX)"
					wget -q -O ${tmp_toolchain} "${DUB_TOOLCHAIN_URL}/toolchain-${TLABEL}.sh"
					rm -rf ${DUB_TOOLCHAIN_DIR}/${TLABEL} && sh ${tmp_toolchain} -y -d ${DUB_TOOLCHAIN_DIR}/${TLABEL}
					rm -f ${tmp_toolchain}
					break
				fi
			done

			eval $(grep "^export CROSS_COMPILE=" ${DUB_TOOLCHAIN_DIR}/${TLABEL}/environment-setup-*)
			eval $(grep "^export PATH=" ${DUB_TOOLCHAIN_DIR}/${TLABEL}/environment-setup-*)
			eval $(grep "^export SDKTARGETSYSROOT=" ${DUB_TOOLCHAIN_DIR}/${TLABEL}/environment-setup-*)

			# We need to explicitly pass the CC variable. Otherwise u-boot discards the
			# '--sysroot' option and the build fails
			eval UBOOT_MAKE_TARGET=\"\${${platform}_make_target}\"
			make distclean
			make ${platform}_config
			make ${MAKE_JOBS} CC="${CROSS_COMPILE}gcc --sysroot=${SDKTARGETSYSROOT}" ${UBOOT_MAKE_TARGET}

			# Copy u-boot image
			cp ${UBOOT_MAKE_TARGET} ${DUB_IMGS_DIR}/${UBOOT_MAKE_TARGET/u-boot/u-boot-${platform}}
		)
	done

	popd
fi