WalidNewaz/getting-started-with-lage

This is a tutorial about setting up a monorepo with lage

Lage monorepo starter project

This repo contains a monorepo built using lage. It contains two packages a and b. This utilizes npm workspaces.

You can create a similar repo by executing the following command on your terminal:

npm init
npm init -w ./packages/a
npm init -w ./packages/b
npm install
npm install lage
npx lage init

lage generates a default config file lage.config.js which looks like the following:

module.exports = {
 "pipeline": {
   "build": ["^build"],
   "test": ["build"],
   "lint": []
 }
};

Customize the root level package.json

Modify the package.json to use lage scripts.

{
 "name": "getting-started-with-lage",
 "scripts": {
   "build": "lage build",
   "lint": "lage lint",
   "test": "lage test"
 },
 "workspaces": [
   "packages/a",
   "packages/b"
 ]
}

Add some test script

Install Jest to run the tests.

npm install --save-dev jest -w a
npm install --save-dev jest -w b

Now add some testable code within both packages. Invoking npm test should now execute the the pipeline, and cache the results of the individual tasks.