Flow Monorepo

Template repository to demonstrate how to set up a monorepo with Flow. Other tools include:

• Babel
• ESLint
• Flow
• Jest
• Lerna
• Prettier
• Rollup
• Terser
• Yarn

Getting started

Install dependencies

$ yarn

Rename package scope. Search for @yangshun in the repository and make the following changes:

1. Update import statements in packages
2. Update the Jest/Flow config mapping in jest.config.js and .flowconfig

Directory structure

├── packages
│   ├── bar
│   │   ├── __tests__
│   │   │   └── bar.test.js
│   │   ├── src
│   │   │   └── index.js
│   │   └── package.json
│   └── foo
│       ├── __tests__
│       │   └── foo.test.js
│       ├── src
│       │   └── index.js
│       └── package.json
└── package.json

Commands

• yarn build - Runs rollup on all packages to build bundles for each environment
• yarn check-all - Runs all necessary checks, tests and builds. Useful for CI environments
• yarn clean - Removes all the rollup bundle directories in each package
• yarn flow - Checks the packages directory for Flow violations
• yarn prettier - Formats all the files in all the JS files
• yarn prettier:report - Reports any formatting violations in all the JS files
• yarn publish-packages - Runs Lerna publish
• yarn lint - Fixes the ESLint violations in all the JS files
• yarn lint:report - Reports ESLint violations in all the JS files
• yarn test - Tests all the files with Jest