[3/3] build: commit builtinblocks Webpack config and stub out xmodule_assets
#32685
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This PR implements much of the static assets rework ADR [1], including: * `npm run build[-dev]`, and its subcommands, * `npm run webpack[-dev]` and * `npm run compile-sass[-dev]`. This is backwards-compatible. `paver update_assets` should not be affected. The new command warns that it is "experimental" for a few reasons: * `npm run build` will fail in the webpack phase unless you first run `xmodule_assets`. This will be changed soon [2]. * We have tested the new build, but not quite so thoroughly that we'd recommend it as the production default yet. Once the xmodule_assets work lands, we'll share this on the forums so early adopters can try it out. * The commands lack some top-level documentation. Once they stabilize more, we'll add a section to the README that explains how and when to use `npm run build` and its subcommands and its env vars. * `npm run watch` is not yet implemented. References: 1. https://github.com/openedx/edx-platform/blob/master/docs/decisions/0017-reimplement-asset-processing.rst 2. #32685 Part of: #31604
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The Webpack configuration file for built-in XBlock JS used to be generated at build time and git-ignored. It lived at common/static/xmodule/webpack.xmodule.config.js. It was generated because the JS that it referred to was also generated at build-time, and the filenames of those JS modules were not static. Now that its contents have been made entirely static [1], there is no reason we need to continue generating this Webpack configuration file. So, we check it into edx-platform under the name ./webpack.builtinblocks.config.js. We choose to put it in the repo's root directory because the paths contained in the config file are relative to the repo's root. This allows us to behead both the xmodule/static_content.py (`xmodule_assets`) script andthe `process_xmodule_assets` paver task, a major step in removing the need for Python in the edx-platform asset build [2]. It also allows us to delete the `HTMLSnippet` class and all associated attributes, which were exclusively used by xmodule/static_content.py.. We leave `xmodule_assets` and `process_xmodule_assets` in as stubs for now in order to avoid breaking external code (like Tutor) which calls Paver; the entire pavelib/assets.py function will be eventually removed soon anyway [3]. Further, to avoid extraneous refactoring, we keep one method of `HTMLSnippet` around on a few of its former subclasses: `get_html`. This method was originally part of the XModule framework; now, it is left over on a few classes as a simple internal helper method. References: 1. openedx#32480 2. openedx#31800 3. openedx#31895 Part of: openedx#32481
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2U Release Notice: This PR has been deployed to the edX staging environment in preparation for a release to production. |
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2U Release Notice: This PR has been deployed to the edX production environment. |
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Description and supporting info
The Webpack configuration file for built-in XBlock JS used to be generated at build time and git-ignored. It lived at common/static/xmodule/webpack.xmodule.config.js. It was generated because the JS that it referred to was also generated at build-time, and the filenames of those JS modules were not static.
Now that its contents have been made entirely static [1], there is no reason we need to continue generating this Webpack configuration file. So, we check it into edx-platform under the name ./webpack.builtinblocks.config.js. We choose to put it in the repo's root directory because the paths contained in the config file are relative to the repo's root.
This allows us to behead both the xmodule/static_content.py (
xmodule_assets) script andtheprocess_xmodule_assetspaver task, a major step in removing the need for Python in the edx-platform asset build [2]. It also allows us to delete theHTMLSnippetclass and all associated attributes, which were exclusively used by xmodule/static_content.py..We leave
xmodule_assetsandprocess_xmodule_assetsin as stubs for now in order to avoid breaking external code (like Tutor) which calls Paver; the entire pavelib/assets.py function will be eventually removed soon anyway [3]. Further, to avoid extraneous refactoring, we keep one method ofHTMLSnippetaround on a few of its former subclasses:get_html. This method was originally part of the XModule framework; now, it is left over on a few classes as a simple internal helper method.References:
Testing
Follow the same instructions from #32480, but sub in this branch.