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fix(@schematics/angular): update the PostCSS configuration used by the build in tailwind - #34571
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alan-agius4 merged 5 commits intoOct 30, 2026
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…e build in tailwind The tailwind schematic searched the workspace root before the project root and `.postcssrc.json` before `postcss.config.json`, the opposite of the build system. With a configuration in both locations, the schematic added `@tailwindcss/postcss` to a file the build never reads, so the build succeeded but Tailwind CSS utilities were not generated. Search the project root first and `postcss.config.json` first, matching the build system.
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This pull request aligns the Tailwind schematic's PostCSS configuration lookup order with the build system by prioritizing the project root over the workspace root, and 'postcss.config.json' over '.postcssrc.json'. It also adds unit tests to verify these priorities. Feedback is provided to deduplicate and normalize the search paths to prevent redundant file checks when the project root is empty.
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…d by the build in tailwind- angular#34571 Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
…d by the build in tailwind
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…d by the build in tailwind Co-authored-by: Alan Agius <[email protected]>
…d by the build in tailwind Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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…d by the build in tailwind Co-authored-by: Alan Agius <[email protected]>
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The tailwind schematic searched the workspace root before the project root and
.postcssrc.jsonbeforepostcss.config.json, the opposite of the build system. With a configuration in both locations, the schematic added@tailwindcss/postcssto a file the build never reads, so the build succeeded but Tailwind CSS utilities were not generated.Search the project root first and
postcss.config.jsonfirst, matching the build system.