fix(css): tell the reader to create the config file, and what to put in it - #3655
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…in it #3597 corrected the CSS-optimizer hint's install command but left its second clause pointing at a file that does not exist. Verified against published 0.1.1232: `veryfront init --template minimal` writes package.json, app/, public/, tsconfig.json and AGENTS.md -- no veryfront.config.ts. So ! ... Install one with: npm install @veryfront/ext-css-lightning, then add it to "extensions" in veryfront.config.ts tells a reader to edit a file they do not have, which is the defect #3597 set out to fix, surviving in the sentence's second half. Following it also fails on the first natural attempt. The reader has to author the file, and its first line is exactly the line the hint never gives. The obvious guess, `import { defineConfig } from "veryfront/config"`, is not an exported subpath -- `defineConfig` is on the package root -- so Node raises ERR_PACKAGE_PATH_NOT_EXPORTED and the build stops at a bare "Failed to load veryfront.config.ts". So the hint now inspects the project and says one of two things: ..., then create veryfront.config.ts containing: import { defineConfig } from "veryfront"; import extCssLightning from "@veryfront/ext-css-lightning"; export default defineConfig({ extensions: [extCssLightning()] }); ..., then activate it in veryfront.config.ts: add import extCssLightning from "@veryfront/ext-css-lightning"; and list extCssLightning() in "extensions". The create form is the whole file on one line, pasteable as-is. The existing form names the file the project actually keeps: the loader accepts .js, .ts and .mjs, so a hardcoded .ts would send a reader with veryfront.config.js to a second file the loader never reaches. The local binding is the hint's to choose -- every first-party extension exports its factory as the module default -- so it is derived from the package name and the reader can see which import belongs to which entry. The logic lives in src/extensions/setup-hint.ts beside install-command.ts, whose detector it reuses, rather than in the CSS pipeline that prints it: the same "installing it registers nothing" hole applies to every explicit-activation recommendation in recommendations.ts. Verified end to end in a scratch npm project built from published 0.1.1232 and built with this branch's CLI: following the printed sentence literally and nothing else clears the warning and takes the stylesheet from 110,606 unminified bytes to 89,489 minified.
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📝 WalkthroughWalkthroughAdds extension setup-hint generation, configuration-file discovery, import binding derivation, and complete installation instructions. CSS optimizer warnings now use these hints and include extension import and activation examples. ChangesExtension setup guidance
Estimated code review effort: 3 (Moderate) | ~20 minutes Mergeability Score: ⚪ Minimal · up to The change improves CSS optimizer setup guidance and includes targeted coverage; no actionable merge-blocking risk remains after normal checks and review. Sequence Diagram(s)sequenceDiagram
participant TailwindCompiler
participant formatExtensionSetupHint
participant ProjectFilesystem
TailwindCompiler->>formatExtensionSetupHint: request extension setup guidance
formatExtensionSetupHint->>ProjectFilesystem: detect existing configuration
ProjectFilesystem-->>formatExtensionSetupHint: configuration filename or no file
formatExtensionSetupHint-->>TailwindCompiler: installation and configuration instructions
Possibly related PRs
Suggested reviewers: 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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In `@src/extensions/setup-hint.test.ts`:
- Around line 86-99: Add coverage for the .mjs configuration branch in the test
around formatExtensionSetupHint by creating a veryfront.config.mjs fixture and
asserting the generated hint names that file, while retaining the existing
checks that it does not suggest veryfront.config.ts.
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src/extensions/setup-hint.test.tssrc/extensions/setup-hint.tssrc/html/styles-builder/css-provider-session.test.tssrc/html/styles-builder/tailwind-compiler.ts
The loader accepts veryfront.config.js, .ts and .mjs; the suite only had a .js fixture, so a lookup that stopped before the third entry would keep passing while a project with veryfront.config.mjs was told to create a second, shadowed veryfront.config.ts.
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Follow-up to #3597. That PR fixed the install command in the CSS-optimizer hint; the sentence's second half still fails.
Reproduction (published 0.1.1232, sandbox outside the monorepo)
There is no
veryfront.config.ts. The hint names a file the scaffold does not create — the exact defect #3597 set out to fix, surviving in the second clause.Following it then fails on the first natural attempt. The reader has to author the file, and its first line is the one line the hint never gives. The obvious guess:
is not an exported subpath —
defineConfigis on the package root — so Node raisesERR_PACKAGE_PATH_NOT_EXPORTED:(The loader swallowing that cause is a separate defect, fixed in its own PR.)
Change
src/extensions/setup-hint.tsnow composes the whole remedy and inspects the project first:No config file:
Config file present:
The create form is the whole file on one line, pasteable as-is. The existing form names the file the project actually keeps — the loader accepts
.js,.tsand.mjs, so a hardcoded.tswould send a reader withveryfront.config.jsto a second file the loader never reaches.The local binding is the hint's to choose (every first-party extension exports its factory as the module default), so it is derived from the package name.
It lives beside
install-command.ts, whose detector it reuses, rather than in the CSS pipeline that prints it: the same "installing it registers nothing" hole applies to every explicit-activation entry inrecommendations.ts.Tests
Red first.
css-provider-session.test.ts— "shows the import line, so the config edit needs no guessing":src/extensions/setup-hint.test.tspins the create/edit branches, the.js/.tsfilename, the absence of"veryfront/config", and binding derivation against explicit temp directories rather than the working directory.End-to-end verification
Scratch npm project scaffolded by published 0.1.1232, built with this branch's CLI. Following the printed sentence literally and nothing else:
Also confirmed the edit branch fires when a
veryfront.config.tsexists without the extension.🤖 Generated with Claude Code
Summary by CodeRabbit
New Features
Bug Fixes