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Codemod for template-only-glimmer-components doesn't support Addons #237

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@elwayman02

It appears that the codemod implementation only runs against components in the app/ directory, which will not work for addons, which store their components in the addon/ directory and may not re-export them at all (since doing so is dangerous and a bad pattern). In order for addons to successfully enable this feature, the codemod needs to be able to create backing classes for addon components.

https://github.com/emberjs/ember-optional-features/blob/master/features/template-only-glimmer-components.js#L55

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  1. elwayman02 commented on Aug 6, 2020

    @elwayman02
    Author

    Following up on discussion with @chancancode to capture some pieces we figured out:

    • This isn't necessarily a concern of ember-optional-features, which was intended to be used by app consumers
    • Addons don't generally have template-only components if they are following the re-export pattern in their app/ directory
    • This codemod is necessary for addons that expect to use Wall St syntax for namespaced component invocation (and will be useful for template imports as well)

    Conclusion: It may be better for this codemod to live as a separate project in ember-codemods rather than as part of this project.

  2. elwayman02 commented on Nov 6, 2020

    @elwayman02
    Author

    Coming full circle on this.

    @rwjblue implemented the codemod to fix this here: rwjblue/ember-holy-futuristic-template-namespacing-batman-codemod#58

    However, there is a related issue that I believe does impact this project. If you enable template-only-glimmer-components in an addon, it does not create backing classes for template-only components in tests/dummy/templates/components, which is a perfectly valid use-case for addons.

  3. rwjblue commented on Nov 9, 2020

    @rwjblue
    Member

    which is a perfectly valid use-case for addons

    Ya, agreed.

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