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Contributing to Theme Kit

Theme Kit is open source and we welcome your contributions to the project. The following steps illustrate the workflow for making a contribution:

  1. Open an issue to report a bug or request a feature.
  2. If the feature or bug is deemed valid, then fork the repo.
  3. Implement a patch to resolve the issue.
  4. Include tests to prevent regressions and validate the patch.
  5. Update the documentation for any API changes.
  6. Submit a pull request and mention maintainers. The current maintainers are @tanema and @chrisbutcher.

Developing Theme Kit

Although Theme Kit is a command line interface, it's also a library that can be used in Go application development. For more information, refer to the development documentation for Theme Kit.

Requirements

Set up your development environment

You can set up your development environment by running the following commands:

git clone git@github.com:Shopify/themekit.git # get the code
cd themekit                                   # change into the themekit directory
make                                          # build themekit, will install theme kit into $GOPATH/bin
theme version                                 # should output the current themekit version

Helpful commands

  • make: Compiles themekit into your GOPATH/bin.
  • make test: Runs linting/vetting/testing to make sure your code meets high quality standards.
  • make help: Shows all of the commands available to you.

Go development

You can run the following command to get started and retrieve the themekit library:

go get -u github.com/Shopify/themekit

Javascript, Gulp, and Node development

Shopify uses Theme Kit in many of our Gulp processes. To interact with Theme Kit using Javascript, check out our node-themekit library.

Test mocks

If interfaces change, then you need to regenerate the mocks with Mockery.

To install Mockery, run the following command:

go get github.com/vektra/mockery/...

After Mockery is installed, cd into the directory of the interface and run:

mockery --name=InterfaceName --output=_mocks

Debug requests

A mitmproxy (man in the middle proxy) is the easiest way to introspect the requests that themekit makes.

To use the proxy, complete the following steps:

  1. Run brew install mitmproxy.
  2. Run mitmproxy -p 5000 -w themekit_dump. This will start it listening on port 5000 and write to the file themekit_dump.
  3. In another console, in your project directory, run theme deploy --proxy http://localhost:5000.
  4. After the theme deploy command executes, you can quit mitmproxy by entering q and then y.

Note: If you are troubleshooting an issue for a partner, then they must provide the themekit_dump log. The log can then be loaded into mitmproxy for analysis.