Simple script to cross-compile mozilla-iot-gateway modules for ARMv7 architecture

cross-mozilla-iot-modules.sh

#!/bin/bash -x
#
# This script is expected to run inside a docker container which has the Raspberry Pi toolchain
# and required prerequisites:
#   - pkg-config
#   - libusb-1.0-0-dev
#   - libudev-dev
#
# /build corresponds to the current directory when the docker container is run and it is expected
# that the following directory structure has been setup:
#
#   - /build/Open-ZWave/open-zwave  - git repository containing the desired version of OpenZWave
#   - /build/gateway                - git repository containing the gateway software

# initial settings
REV=$(git rev-parse --short HEAD)
NODE_MODULES_TARBALL=node_modules-armv7l-${REV}.tar.gz

# Remove the output, if it exists
[ -e ${NODE_MODULES_TARBALL} ] && echo "already built !" && exit 0

[ -d $PWD/node_modules ] && rm -rf $PWD/node_modules

NODE_VERSION=v8.9.1

ARCH=armv7l
SYSROOT=${HOME}/cross-raspbian

# Setup Cross compiler vars which are used by node-gyp when building native node modules.
OPTS="--sysroot=${SYSROOT}"
export CC="arm-linux-gnueabihf-gcc ${OPTS}"
export CXX="arm-linux-gnueabihf-g++ ${OPTS}"

# building npm modules
# npm --arch=${ARCH} install --build-from-source
npm --arch=${ARCH} install

# Create a tarball with all of the node modules
tar czf ${NODE_MODULES_TARBALL}  node_modules