Install app from an npm registry

installNodeApp.sh

#!/bin/bash
# Installs an app from a npm registry into a specific directory

APP=$1
TARGET=$2

# Assure we have both parameters
if [ -z $APP ] || [ -z $TARGET ]; then
  echo "Usage: $0 my-node-app /some/install/path/my-node-app"
fi
# Resolve stuff like ../
TARGET=$(realpath $TARGET)

echo "Installing $APP at $TARGET..."

# Whereas npm v6 returns the fetched tarball name,
# npm v7+ won't do that, therefore we use a custom directory
# with wildcard pattern to extract the app
rm -rf /tmp/__install_app
mkdir -p /tmp/__install_app
cd /tmp/__install_app

npm pack $APP
tar xvf *.tgz
mv package $TARGET
cd $TARGET
rm -rf /tmp/__install_app

# Install
NODE_ENV=production npm install --production

Example usage

To e.g. install some-package to package-installation under the current directory:

bash <(curl -sL https://gist.githubusercontent.com/mmende/2c10dd6161bc75120dbf153098caa48d/raw/installNodeApp.sh) some-package ./package-installation