instrument-builder

Overview

This repo contains all LORIS-ReproSchema shared React components to be used in the front-end development of an Instrument Builder module that can be plugged in both LORIS and MindLogger.

The React components will include LORIS Core React elements living in the jsx/ directory as well as instrument-builder specific Forms for adding new items to the instrument.

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Set up

In order to use webpack, we need to install Node.js, NPM and additional dependencies.

1. Get Node.js

To check whether or not Node.js is installed on your machine, run the following:

node -v

If not installed, use one of the following steps to install for your OS:

Ubuntu

For this install you will need sudo rights

curl -sL https://deb.nodesource.com/setup_6.x | sudo -E bash -
sudo apt-get install -y nodejs
sudo apt-get install -y build-essential

Note: Older LTS version (14.04<=)

curl -sL https://deb.nodesource.com/setup_4.x | sudo -E bash -
sudo apt-get install -y nodejs
sudo apt-get install -y build-essential

CentOS

curl --silent --location https://rpm.nodesource.com/setup_6.x | bash -
yum -y install nodejs
yum install gcc-c++ make

MacOS

Download the Node.js package from here

2. Get NPM

Once Node.js is installed, run the following to install npm

curl -L https://www.npmjs.com/install.sh | sudo sh

3. Get LORIS dependencies

Once Node.js and npm are installed, you are ready to install all necessary Node.js dependencies. (i.e webpack)

Follow these steps in your terminal:

  cd $loris$ # your LORIS home directory
  npm install --only=dev

Note: Permissions might be adjusted using

sudo chown -R $USER:$(id -gn $USER) ./node_modules

Note: to see a list of all dependencies refer to package.json

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File Structure

1. Generic JSX files (Loris Core)

Within LORIS we have many React components that can be used throughout the different modules. When adding a new generic file, the JSX file should be placed in the jsx/ directory and its compiled file in the htdocs/js/components directory.

2. instrument-builder specific JSX files

React components that are designed for this specific instrument_builder module should have its JSX file placed in the module/jsx/ directory and its compiled file in the module/js/ directory.

Note: When creating a new JSX file always use the .js extension or the continuous compilation will not work as expected. The file name of the JSX and its compiled file should have the same name.

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Transpiling React code

We need to use webpack in order to transpile JSX and ES6 syntax used in our React code into ES5 syntax understood by all browsers.

Step 1: Update webpack.config.js

When you create a new ES6/JSX file, ensure you add it to the webpack.config.js file under the config.entry object with the following format:

'./desc/file.js' : './src/file.js'

Step 2: Transpiling all files

To compile all ES6/JSX files in LORIS, run the following command:

npm run compile

which is a short-cut for:

./node_modules/.bin/webpack

Step 3: Watch all files (optional)

You can have webpack watch for changes to all revelant files and compile them on the fly:

npm run watch

which is a short-cut for:

./node_modules/.bin/webpack --watch

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Coding Guidelines

• All new React components and major updates to existing React components should follow ES6 standard
• All new and existing Javascript code should pass ESLint validation
• All new components should be compiled using webpack
• All new modules and major module updates should use a single javascript entry-point index.js and rely on ES6 modules to include additional components

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