28 lines
1.3 KiB
JavaScript
28 lines
1.3 KiB
JavaScript
// Derive editor preview styles from the site CSS so the preview cannot drift.
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// The preview template in src/pages/admin/index.astro renders the same markup
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// as the Example pages, so the page hero, figure and prose rules apply as-is.
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import { readFileSync, writeFileSync } from 'node:fs';
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const css = readFileSync(new URL('../src/styles/global.css', import.meta.url), 'utf8').replace(/\r\n/g, '\n');
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const between = (start, end) => {
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const from = css.indexOf(start);
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const to = end ? css.indexOf(end, from) : css.length;
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if (from < 0 || to < 0) throw new Error(`preview-styles: marker not found in global.css: ${from < 0 ? start : end}`);
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return css.slice(from, to).trim();
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};
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const preview = [
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between('/* ===', '/* Header'), // fonts, tokens, base, utilities
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between('/* Page hero', '/* Footer'), // hero, figure, prose, buttons
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between('/* Preferences'), // high contrast, reduced motion
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`/* Preview frame
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========================================================================== */
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/* There is no site header above the hero */
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.page-hero {
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margin-top: 0;
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padding-top: 3rem;
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}`,
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];
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writeFileSync(new URL('../public/admin/preview.css', import.meta.url),
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'/* Generated by scripts/preview-styles.mjs; edit src/styles/global.css. */\n\n' + preview.join('\n\n') + '\n');
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