feat(build): Migrate to Vite build tooling with proper WordPress externalization#32
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feat(build): Migrate to Vite build tooling with proper WordPress externalization#32
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- Add rollup-plugin-external-globals and vite-plugin-external as devDependencies - These peer deps are required for wp_scripts helper to externalize WordPress packages - Without them, WordPress packages get bundled causing duplicate registries - Bundle size reduced from 100KB+ to 22KB with proper externalization Tests: - Add peer-dependencies.test.ts to verify deps are installed and declared - Update imports.test.ts with correct bundle size expectations (15-50KB) - Fix Jest config to exclude E2E tests (.spec.ts files) - Update validation script to remove non-existent build:apps check - Add auto-fix for formatting issues in validation Documentation: - Add build requirements section to README explaining peer deps - Add comments in vite.config.ts warning about peer dependency requirement - Document expected bundle size and externalization behavior All tests passing: 493/493 unit tests ✅, 25/27 E2E tests ✅
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Pull Request Overview
This PR completes Phase 1 of migrating from TypeScript compiler to Vite build tooling with proper WordPress package externalization. The migration addresses bundle size issues and improves build performance while maintaining compatibility with the WP Kernel framework patterns.
Key changes:
- Migrated all packages from TypeScript compiler to Vite build system
- Added proper WordPress package externalization to prevent bundling conflicts
- Fixed peer dependency requirements for @kucrut/vite-for-wp plugin
Reviewed Changes
Copilot reviewed 62 out of 65 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
| vite.config.base.ts | Shared Vite configuration for WP Kernel library packages with WordPress externalization |
| packages/*/vite.config.ts | Individual package configurations using the shared base config |
| packages/*/package.json | Updated build scripts from tsc to vite with type checking |
| app/showcase/vite.config.ts | WordPress-specific build config with proper externals and Script Modules output |
| app/showcase/package.json | Added required peer dependencies and updated build scripts |
| scripts/validate-scripts.sh | Removed non-existent build:apps command and improved format checking |
| jest.config.cjs | Excluded Playwright spec files from Jest test runs |
| playwright.config.ts | Updated test directory and improved configuration structure |
Files not reviewed (1)
- pnpm-lock.yaml: Language not supported
Comments suppressed due to low confidence (1)
app/showcase/src/admin/pages/JobsList.tsx:1
- Multiple debug console.log statements should be removed from production code. Consider using a proper logging utility or removing these debugging statements before merging.
/**
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| ...(process.env.CI | ||
| ? {} | ||
| : { | ||
| command: 'pnpm wp:start', | ||
| url: 'http://localhost:8889', | ||
| reuseExistingServer: true, | ||
| timeout: 120 * 1000, // 2 minutes for Docker startup | ||
| stdout: 'pipe', | ||
| stderr: 'pipe', | ||
| }, | ||
| webServer: { | ||
| command: 'pnpm wp:start', | ||
| url: 'http://localhost:8889', | ||
| reuseExistingServer: true, | ||
| timeout: 120 * 1000, // 2 minutes for Docker startup | ||
| stdout: 'pipe', | ||
| stderr: 'pipe', | ||
| }, | ||
| }), |
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[nitpick] The conditional spread operator pattern with empty object creates unclear code flow. Consider using a more explicit approach like extracting the webServer configuration to a variable or using a proper conditional assignment.
Suggested change
| ...(process.env.CI | |
| ? {} | |
| : { | |
| command: 'pnpm wp:start', | |
| url: 'http://localhost:8889', | |
| reuseExistingServer: true, | |
| timeout: 120 * 1000, // 2 minutes for Docker startup | |
| stdout: 'pipe', | |
| stderr: 'pipe', | |
| }, | |
| webServer: { | |
| command: 'pnpm wp:start', | |
| url: 'http://localhost:8889', | |
| reuseExistingServer: true, | |
| timeout: 120 * 1000, // 2 minutes for Docker startup | |
| stdout: 'pipe', | |
| stderr: 'pipe', | |
| }, | |
| }), | |
| webServer: !process.env.CI | |
| ? { | |
| command: 'pnpm wp:start', | |
| url: 'http://localhost:8889', | |
| reuseExistingServer: true, | |
| timeout: 120 * 1000, // 2 minutes for Docker startup | |
| stdout: 'pipe', | |
| stderr: 'pipe', | |
| } | |
| : undefined, |
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| // This is a workaround for a potential timing issue with classic scripts | ||
| setTimeout(() => { | ||
| console.log( | ||
| '[WP Kernel Showcase] After delay, checking store again...' | ||
| ); | ||
| } | ||
| const storeAfterDelay = globalWindow.wp?.data?.select(job.storeKey); | ||
| console.log( | ||
| '[WP Kernel Showcase] Store after delay:', | ||
| storeAfterDelay | ||
| ); | ||
| mountAdmin(); | ||
| }, 100); |
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Using setTimeout as a workaround for timing issues is fragile and indicates an underlying race condition. Consider implementing a proper store registration check or event-based approach instead of relying on arbitrary delays.
Unit tests were failing because build artifacts weren't available. Added 'Restore build outputs' step to match lint job pattern. Fixes: - app/showcase/__tests__/build-verification/imports.test.ts needs build/index.js - app/showcase/__tests__/build-verification/peer-dependencies.test.ts needs node_modules Pattern follows lint job (line 158-165).
pipewrk
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Oct 2, 2025
- Update PNPM_VERSION from 9.12.3 to 10.17.1 (matches package.json) - Fixes pnpm version mismatch error in CI - Regenerate API docs after Vite migration merge Fixes CI build failure on main after PR #32 merge
Closed
pipewrk
added a commit
that referenced
this pull request
Nov 8, 2025
feat(build): Migrate to Vite build tooling with proper WordPress externalization
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Summary
Completes Phase 1 of #30: Migration from TypeScript compiler to Vite build tooling with proper WordPress package externalization.
Phase 1 Completed ✅
All tasks from Sprint 1.5 Phase 1 are complete:
Problem Solved
The showcase plugin was bundling WordPress packages instead of externalizing them, causing:
Root Cause: @kucrut/vite-for-wp's wp_scripts helper requires peer dependencies that weren't installed.
Changes
Build System
Showcase Plugin
Test Infrastructure
Test Results ✅
window.wp.*Performance Improvements
Success Criteria Met ✅
Breaking Changes
None - this is a build tooling change with no runtime impact.
Next Steps
Phase 2 (Vitest migration) will be handled in a separate PR.
Closes #30 (Phase 1)