In general, the last step in the process of contributing code is to open a PR on this repository. The reason why is that writing code is time-consuming, and it's better to get agreement on the implementation approach early instead of having to make considerable revisions.
Please first open an issue on this repo and check the box in the issue form indicating that you would like to work on a fix. We'll need to come to agreement on how to fix the issue in discussion on that issue. For minor or obvious bugs, this discussion should be very straightforward.
Once agreement has been reached, a PR can be opened; please mention the issue number in the PR's description. It will be assigned to a GitHub project for the release it will be targeted to, so you can track the progress of a PR toward a finished release.
Please read Twine's design goals first.
If you think your idea meshes with these goals, open an issue on this repo and check the box in the issue form indicating you would like to work on a fix. We will need to discuss your idea in detail and come to agreement on how it will work. This process will likely require you to provide mock screenshots and explain how users will use the feature in detail.
Once we have come to agreement on the UI and implementation approach, a PR can be opened. Please mention the issue number in the PR's description. As with bugfixes, PRs are assigned to GitHub projects to track releases.
PRs are no longer being accepted for the 2.3 release branch. Members of the community who would like to continue to update 2.3 are welcome to do so in a forked version of the app. (If you decide to do this, please use a different name than Twine for the app.)
PRs should always:
- Target the
develop
branch, notmain
. - Include sufficient unit test coverage. You can see a test coverage report by
running
npm run test:coverage
. A good guideline to deciding whether test coverage is enough is to ask yourself, "Could this feature be re-implemented solely by looking at the unit tests?"- Unit tests for UI components should cover their behavior. Appearance does not need to be unit tested.
- Unit tests for UI components should always include a baseline accessibility test using jest-axe.
- Use test components like
<FakeStateProvider>
to test resulting state instead of mocking store dispatches. - Put tests in a
__tests__
directory, mocks in__mocks__
.
- Include updates to the documentation if a feature is changing.
- Pass
npm run lint
checks with no warnings or errors. - Use prettier for code formatting. There is a
prettier.config.js
file that does a little configuration of the tool.
- All data changes should take place through stores defined under
src/store
. Components should manage as little internal state as possible. - Conversely, code under
src/store
should never touch UI code directly. The only way these two should interact is by a component dispatching actions in the relevant store. - Components under
src/components
should always take values and objects as props, as opposed to IDs that they look up in a store. Code insrc/dialogs
orsrc/routes
may interact with stores.- ✅
<PassageCard passage={{id: 'abc', name: 'Untitled Passage 1', text: 'lorem ipsum'}} />
- ❌
<PassageCard passageId={123} />
- ✅
- Components unders
src/components
should be controlled unless absolutely necessary. This applies to all types of components, not just form fields.- ✅
<TextField value="lorem ipsum" onChange={setValue}>
- ❌
<TextField onChange={setValue}>
- ✅
<PassageCard passage={passage} onDelete={handleDelete} onMove={handleMove} />
- ❌
<PassageCard passage={passage} />
- ✅
- Every React component should be assigned a top-level CSS class that is the React component name in kebab case. All related CSS rules should use this class name for scoping. This ensures that components will not overwrite each other's styles.
- Moving business logic out of React components and into
src/util
is almost always a good idea. - Use CSS variables defined in
src/styles
as much as possible. - Use external libraries instead of reinventing the wheel if possible.
- Add external type definitions to
src/externals.d.ts
as a last resort. Modules that come with type definitions, or that have DefinitelyTyped types, are strongly preferred.
Twine's localization strings are stored in i18next JSON format. There are a number of dedicated editors for this format, or you can just use a plain text editor.
To add a new localization or edit an existing one:
- Clone the application source code using Git.
- Create a new branch for your work.
- Create or edit the appropriate file in
public/locales
. The file should be named after the language code you are localizing for. (Check the registry to find the appropriate code). - If you are creating a new localization, copy the existing
en-US.json
file and replace the English strings there with localized ones in the new file. - Commit your changes and create a pull request in GitHub. You should target
the
develop
branch with your pull request.
Once your PR has been accepted, please join the Twine internationalization
listserv by sending an email to twine-i18n-join@iftechfoundation.org
. This is
a low-traffic listserv that will be used to notify people who have worked on
localization on Twine when future versions require localization work, e.g. when
new text is added to the application.