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Installing Node/NPM on servers

Since we're updating our servers to use React for file uploads it requires Node and NPM to be installed on the server for deployment with Capistrano. Capistrano now uses Webpacker (Ruby) which calls Webpack, which is a Javascript way to bundle assets.

Right now we are using both Sprockets (asset pipeline) and Webpack. As we move toward Rails 6, I believe Webpacker is the default. Also, it appears that it's recommended to go through all Javascript files to modernize them an make them more encapsulated rather than using Global scope for Javascript. See for example https://rossta.net/blog/from-sprockets-to-webpack.html which walks through decisions they made while upgrading.

It appears to me that we may run into significant challenges and may take significant time to update our Javascript (especially with Rails Engines that we use of our own and possibly others like Geoblacklight).

Steps to manual install (solution for now)

  1. Get Node and NPM.
cd ~/tmp
wget https://nodejs.org/dist/v14.16.1/node-v14.16.1-linux-x64.tar.xz
  1. Extract Node.
mkdir ~/local
cd ~/local
tar -xf ~/tmp/node-v14.16.1-linux-x64.tar.xz
  1. Symlink Node and NPM.
cd ~bin
ln -s ~/local/node-v14.16.1-linux-x64/bin/node node
ln -s ~/local/node-v14.16.1-linux-x64/bin/npm npm
  1. Install Yarn, it will tell you where it installs and symlinks
npm install --global yarn
  1. Symlink Yarn and yarnpkg.
cd ~/bin

ln -s ~/local/node-v14.16.1-linux-x64/bin/yarn yarn
ln -s ~/local/node-v14.16.1-linux-x64/bin/yarnpkg yarnpkg
  1. Initialize the UI components
cd ~/dryad-app
npm install
bin/webpack