[tech debt] Lint Emotion CSS-in-JS #6839
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- see https://github.com/stylelint/stylelint/blob/main/docs/migration-guide/to-15.md - this removal of Prettier conflicts will save us a lot of setup for CSS-in-JS
- to Sass overrides only - we'll need a separate set of rules for CSS-in-JS later - see https://github.com/stylelint/stylelint/blob/main/docs/user-guide/rules.md#deprecated
- @see https://github.com/hudochenkov/postcss-styled-syntax + set up rule overrides as necessary to handle JS-specific issues
- in favor of simply typing `--fix` manually, or calling `yarn llint-fix` - remove lint-sass-fix entirely since we're moving away from sass
- use `mathWithUnits` and border width var instead
- use obj keys so that Emotion correctly generates the expected classNames - use conditionals in array, not in CSS generation - use separate fn for SR styles that take a custom arg
- matches Sass
Our various JS utils generally include trailing `;`s and don't need extra `;`s after them + lint a few extra trailing `}`s which stylelint also catches
- new stylelint default in v15 uses commas (complex) instead of chained `:not()`s - disable for Sass - wasn't previously linted
- valid usage in this case, but in general we should lint for it
- `except` isn't handling JS interpolation well, so change it to `ignore` instead
- Sass will be going away soon and is irrelevant - CSS-in-JS has one deprecation warning (extra semicolons), but it's pretty dang useful, so I think we should not warn on it
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@elastic/eui-team Would super appreciate a review on this whenever any of y'all have a sec! It's a lot of lines but most of it is either just I'll be doing more Emotion work this week after this so being able to auto-lint that work would be 💯 |
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Preview documentation changes for this PR: https://eui.elastic.co/pr_6839/ |
1Copenut
approved these changes
Jun 14, 2023
- I'm sure this will come up in the future otherwise
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Thanks Trevor! I realized that the |
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Preview documentation changes for this PR: https://eui.elastic.co/pr_6839/ |
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Summary
closes #6477
I strongly recommend following along by commit, but here's the TL;DR:
stylelintto v15block-no-emptyfalse positive that was otherwise cropping up frequently*.style.tsetc files now caught by our linter//comments in CSS-in-JS - we must use CSS-allowed/* */comments only. The parser will error otherwiseQA
yarn lintpasses*.styles.tsfile and break linting on purpose (e.g. add a semicolon to the end of a${logicalCSS()};line)yarn lint-css-in-jsand confirm it flags the new erroryarn lint-fixand confirm it auto-fixes the errorGeneral checklist
[ ] A changelog entry exists and is marked appropriatelyN/A, should be dev-only / not have any user-facing changes