[12.x] Syntax highlight on the frontend #57184
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avosalmon
commented
Sep 26, 2025
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| $fallback = $truncate ? '<pre class="truncate"><code>' : '<pre><code>'; | ||
| $lines = explode("\n", $code); | ||
| if ($highlightedLine !== null) { | ||
| $highlightedCode->decoration( | ||
| LineDecoration::forLine($highlightedLine)->class('bg-rose-200! [&_.line-number]:dark:text-white! dark:bg-rose-900!'), | ||
| ); | ||
| if ($editor) { | ||
| foreach ($lines as $index => $line) { | ||
| $lineNumber = $startingLine + $index; | ||
| $highlight = $highlightedLine === $index; | ||
| $lineClass = implode(' ', [ | ||
| 'block px-4 py-1 h-7 even:bg-white odd:bg-white/2 even:dark:bg-white/2 odd:dark:bg-white/4', | ||
| $highlight ? 'bg-rose-200! dark:bg-rose-900!' : '', | ||
| ]); | ||
| $lineNumberClass = implode(' ', [ | ||
| 'mr-6 text-neutral-500! dark:text-neutral-600!', | ||
| $highlight ? 'dark:text-white!' : '', | ||
| ]); | ||
| $fallback .= '<span class="' . $lineClass . '">'; | ||
| $fallback .= '<span class="' . $lineNumberClass . '">' . $lineNumber . '</span>'; | ||
| $fallback .= htmlspecialchars($line); | ||
| $fallback .= '</span>'; | ||
| } | ||
| } else { | ||
| $fallback .= htmlspecialchars($code); | ||
| } | ||
| $fallback .= '</code></pre>'; |
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The new local exception page introduced the
phiki/phikicomposer package for syntax highlighting.This significantly increased the application size (by ~13 MB), causing issues with Vapor deployments. #57117
This PR removes the
phiki/phikipackage and replaces it with shiki to handle syntax highlighting on the frontend.With Fine-grained Bundle, the JavaScript bundle only includes the necessary languages (PHP, SQL, and JSON) and themes (Light Plus and Dark Plus).
The increase in the JavaScript bundle size is approximately 600KB.