ember-native-class-codemod
A codemod for transforming your ember app code to native JavaScript class syntaxwith decorators!
Usage
First, install the dependencies that the codemod relies on. These areaddons that the codemod will add imports from:
ember install ember-classic-decorator
ember install ember-decorators
Then, boot up your application. Then, the codemod can be run using thefollowing command:
npx ember-native-class-codemod http://localhost:4200/path/to/server [OPTIONS] path/of/files/ or/some**/*glob.js
The codemod accepts the following options:
| Option | Value | Default | Details |
|---|---|---|---|
--class-fields |
boolean | true |
Enable/disable transformation using class fields |
--decorators |
boolean | true |
Enable/disable transformation using decorators |
--classic-decorator |
boolean | true |
Enable/disable adding the @classic decorator, which helps with transitioning Ember Octane |
--type |
String | Empty (match all types in path) | Apply transformation to only passed type. The type can be one of services, routes, components, controllers |
--quote |
String | 'single' |
Whether to use double or single quotes by default for new statements that are added during the codemod. |
Gathering Runtime Data
The first argument that you must pass to the codemod is the URL of a runninginstance of your application. The codemod opens up your application and analyzesthe classes directly, so it can transform them, which is why it needs this URL.Any classes that were not analyzed will not be transformed. This includesclasses that are private to a module and never exported.
If you have any lazily loaded modules, such as modules from Ember Engines,you'll need to make sure that the URL you provide loads these modules as well.Otherwise, the codemod will not be able to detect them or analyze them.
Types
The type option can be used to further narrow down transforms to a particular type ofember object within the application or addon. The types can be any of thefollowing:
| Type | Option |
|---|---|
| Services | --type=services |
| Routes | --type=routes |
| Components | --type=components |
| Controllers | --type=controllers |
The path of the file being transformed is matched against the glob pattern ofthe type to determine whether to run the specific transforms.
If a type is not provided, the codemods will run against all the types inthe path provided.
Debugging
The codemods log execution information in the codemods.log file in the currentdirectory where the codemods are being executed. Specifically, details such asfailures and reasons for failures, are logged. This would be the recommendedstarting point for debugging issues related to these codemods.
Unsupported Types
While the codemods transforms many types of ember objects, it does not supporttransformation of
ember-dataclasses such asDS.Model,DS.Adapteretc- Mixins
- Ember Objects with objects or arrays as direct properties (
actionsandqueryParamsare the exception). See eslint-plugin-ember/avoid-leaking-state-in-ember-objectsfor more details. - Ember objects with computed properties that use the
metaorpropertymodifiers.
More Transform Examples
Contributing
Installation
- clone the repo
- change into the repo directory
yarn
Running Tests
yarn test
Update Documentation
yarn update-docs
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