# Contributors ### Checkin - Do checkin source (src) - Do checkin a single index.js file after running `ncc` - Do not checking node_modules ### NCC In order to avoid uploading `node_modules` to the repository, we use [zeit/ncc](https://github.com/zeit/ncc) to create a single `index.js` file that gets saved in `dist/`. If you're developing locally you can run ``` npm install tsc ncc build ``` You can also do ``` npm run-script build # runs tsc npm run-script format # runs prettier --write npm run-script format-check # runs prettier --check npm run-script test # runs jest npm run-script release # runs ncc build ``` Any files generated using `tsc` will be added to `lib/*`, however those files also are not uploaded to the repository and are excluded using `.gitignore`. ### Testing Tests are included under `_tests_/*` and can be run using `npm run-script test`. We ask that you include a link to a successful run that utilizes the changes you are working on. For example, if your changes are in the branch `newAwesomeFeature`, then show an example run that uses `setup-python@newAwesomeFeature` or `my-fork@newAwesomeFeature`. This will help speed up testing and help us confirm that there are no breaking changes or bugs.