#!/bin/bash

# Utility script called by the build system to compile extensions

set -e

function extract_name {

# Extract an e.g. "module foo.bar.baz" line from an LCB source file

sed -nEe 's/^([[:space:]]*(module|widget|library)[[:space:]]*)([-_\.[:alnum:]]*)[[:space:]]*$/\3/p' < "$1"

}

function build_widget {

WIDGET_DIR=$1

WIDGET_NAME=$(basename $1)

WIDGET_LCB="${WIDGET_DIR}/${WIDGET_NAME}.lcb"

TARGET_DIR=$(extract_name "${WIDGET_LCB}")

BUILD_DIR=$2

MODULE_DIR=$3

LC_COMPILE=$4

"${LC_COMPILE}" \

-Werror \

--modulepath "${MODULE_DIR}" \

--manifest "${WIDGET_DIR}/manifest.xml" \

--output "${WIDGET_DIR}/module.lcm" \

"${WIDGET_LCB}"

pushd "${WIDGET_DIR}" 1>/dev/null

zip -q -r "${TARGET_DIR}.lce" *

popd 1>/dev/null

mkdir -p "${BUILD_DIR}/${TARGET_DIR}"

unzip -q \

-o "${WIDGET_DIR}/${TARGET_DIR}.lce" \

-d "${BUILD_DIR}/${TARGET_DIR}"

rm "${WIDGET_DIR}/${TARGET_DIR}.lce"

return 0

}

# Arguments 4 and above are the list of extensions to compile

destination_dir=$1

module_dir=$2

lc_compile=$3

shift 3

# Find the dependency/build ordering of the extensions

build_order=$(${lc_compile} --modulepath ${module_dir} --deps changed-order -- $@)

# Loop over the extensions that need to be (re-)built

for ext in ${build_order} ; do

build_widget $(dirname "${ext}") "${destination_dir}" "${module_dir}" "${lc_compile}"

done