flow-annotation-checker is a babel plugin to check if you have added flow annotation to all your files in the project.
This will list all the files which doesn't have flow annotation while building the bundle.
Using npm
npm install babel-plugin-flow-annotation-checker --save-dev
Using yarn
yarn add --dev babel-plugin-flow-annotation-checker
Add the plugin to .babelrc
{
"plugins": ["babel-plugin-flow-annotation-checker"]
}
Build the bundle using webpack or run it using webpack-dev-server (If webpack is being used)
If any file doesn't have flow annotation a warning will be thrown in the terminal
WARNING WARNING!
following file does not have flow annotation
/Users/app/src/index.js
Pull requests are welcome.