update-zstd-binding.sh

#!/bin/env bash

set -e

if command -v greadlink >/dev/null 2>&1; then
    # On Mac, readlink is not the real readlink, and the greadlink version from
    # coreutils must be used instead.
    READLINK=greadlink
else
    READLINK=readlink
fi

ROOT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
CPP_DIR=$($READLINK -f "${ROOT_DIR}/cpp")
JS_DIR=$($READLINK -f "${ROOT_DIR}/js")

CONTAINER_NAME="zstd-emscripten"
IMAGE_NAME="yoshihitoh/zstd-emscripten"

CONTAINER_ID="$(docker container ls -qa -f name=${CONTAINER_NAME})"
BUILD_TARGET="release"

# move to root directory
cd "${ROOT_DIR}"

# build image
echo "build docker image on $(pwd)..."
docker image build -t "yoshihitoh/zstd-emscripten" .

# check container image, using latest image or not.
if [ ${CONTAINER_ID} ]; then
    # stop and remove if container exists
    echo "removing existing container..."

    docker container stop "${CONTAINER_NAME}" || true && \
        docker container rm "${CONTAINER_NAME}" || true
fi

# run new container
echo "run new container and build sources..."
docker container run \
    --name "${CONTAINER_NAME}" \
    -v "${CPP_DIR}:/emscripten/src" \
    "${IMAGE_NAME}" \
    /bin/bash --login "/emscripten/src/build-emscripten-${BUILD_TARGET}.sh"

# copy compiled binindg into js dir
echo "copying compiled binding into js/lib..."
docker container cp \
    "${CONTAINER_NAME}:/emscripten/src/build-emscripten-${BUILD_TARGET}/zstd-codec-binding.js" \
    "${JS_DIR}/lib"

docker container cp \
    "${CONTAINER_NAME}:/emscripten/src/build-emscripten-${BUILD_TARGET}/zstd-codec-binding-wasm.js" \
    "${JS_DIR}/lib"

echo "done!"