shopify-codemod

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shopify-codemod

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A collection of Codemods written with JSCodeshift that will help update our old, crusty JavaScript to nice, clean JavaScript.

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# shopify-codemod

[![Circle CI](https://circleci.com/gh/Shopify/shopify-codemod.svg?style=svg)](https://circleci.com/gh/Shopify/shopify-codemod)

This repository contains a collection of Codemods written with [JSCodeshift](https://github.com/facebook/jscodeshift) that will help update our old, crusty JavaScript to nice, clean JavaScript.

## Usage

1. `yarn global add jscodeshift`
2. `git clone https://github.com/shopify/shopify-codemod` or [download the zip file](https://github.com/shopify/shopify-codemod/archive/master.zip)
3. `cd shopify-codemod`
4. `yarn install`
5. `jscodeshift -t <codemod-script> <file>`
6. Use the `-d` option for a dry-run and use `-p` to print the output for comparison.

## Documentation

The documentation for each transform can be found in the [docs folder](docs).

## Contributing

All code is written in ES2015+ in the `transforms/` directory. Make sure to add tests for all new transforms and features. A custom `transforms(fixtureName)` assertion is provided which checks that the passed transformer converts the fixture found at `test/fixtures/{{fixtureName}}.input.js` to the one found at `test/fixtures/{{fixtureName}}.output.js`. You can run `yarn test` to run all tests, or `yarn test:watch` to have Mocha watch for changes and re-run the tests.

### Development helpers
`bin/create-transform your-transform-name-here` creates a transform file, a test file, some empty test fixtures, and a doc file.

`bin/rename-transform old-transform-name new-transform-name` renames the transforms file, test file, fixture directory, and doc file.

shopify-codemod

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