compile

#!/usr/bin/env bash
BUILD_DIR=$1
CACHE_DIR=$2
ENV_DIR=$3

echo "Env dir is $ENV_DIR"

ls -alh $ENV_DIR

# Read the secret token from ENV_DIR (this is where Heroku exposes config vars during build)
if [[ -f "$ENV_DIR/NES_TOKEN" ]]; then
  TOKEN=$(cat "$ENV_DIR/NES_TOKEN")
else
  echo "Error: NES_TOKEN is not set!"
  exit 1
fi

if [[ -f "$ENV_DIR/NES_NODE_VERSION" ]]; then
  TOKEN=$(cat "$ENV_DIR/NES_NODE_VERSION")
else
  echo "Error: NES_NODE_VERSION is not set!"
  exit 1
fi

NES_TOKEN=$(cat "$ENV_DIR/NES_TOKEN")
NES_NODE_VERSION=$(cat "$ENV_DIR/NES_NODE_VERSION")


echo "Installing Node.js NES v${NES_NODE_VERSION}"


# NOTE: these urls could change from time to time.
# See https://docs.herodevs.com/node/nodejs for more info.
NODE_URL="https://registry.nes.herodevs.com/nodejs/nes/v${NES_NODE_VERSION}-nes/node-v${NES_NODE_VERSION}-nes-linux-x64.tar.gz"

TMP_DIR="$BUILD_DIR/tmp"

mkdir -p $TMP_DIR
pushd $TMP_DIR

# Download the actual file
curl -L -H "Authorization: Bearer $NES_TOKEN" \
  -o node.tar.gz \
  $NODE_URL
if [[ $? -ne 0 ]]; then
  echo "Failed to download Node.js package"
  exit 1
fi

# Unpack the tar file, then move the node distribution 
# folder (e.g. the only file in the root of node.tar.gz)
# to the $BUILD_DIR directory
tar -xzf node.tar.gz
rm node.tar.gz

# Since the node distribution is archived in a single folder
# take the only remaining dir and rename it to a well known location
FILE_DIR=$(ls)
mv $FILE_DIR $BUILD_DIR/node
popd 
rm -rf $TMP_DIR

# ensure node binary can be executed
chmod a+x $BUILD_DIR/node/bin/node

# we have to put it on the path for the build time
# (since we're going to npm install now)
export PATH="$BUILD_DIR/node/bin:$PATH"
cd $BUILD_DIR
npm install


# And finally, add the node binaries to the PATH for runtime
NODE_BIN="/app/node/bin" # note `/app` at runtime
mkdir -p "$BUILD_DIR/.profile.d"
cat << EOF >> "$BUILD_DIR/.profile.d/node.sh"
export PATH=$NODE_BIN:\$PATH
EOF

# That's it!
echo "Node.js NES installed successfully"