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70 lines
2.3 KiB
JavaScript
70 lines
2.3 KiB
JavaScript
import { mkdirSync, readFileSync, writeFileSync } from 'node:fs';
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import { dirname, join } from 'node:path';
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import { fileURLToPath } from 'node:url';
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const root = dirname(fileURLToPath(import.meta.url));
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const distHtml = join(root, 'dist', 'index.html');
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const { origin, routes } = JSON.parse(
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readFileSync(join(root, 'src', 'seo.routes.json'), 'utf8'),
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);
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function apply(html, { title, description, url, robots }) {
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let out = html;
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out = out.replace(/<title>[\s\S]*?<\/title>/, `<title>${title}</title>`);
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out = out.replace(
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/(<meta\s+name="description"\s+content=")[^"]*(")/,
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`$1${description}$2`,
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);
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out = out.replace(/(<meta\s+name="robots"\s+content=")[^"]*(")/, `$1${robots}$2`);
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out = out.replace(/(<meta\s+property="og:title"\s+content=")[^"]*(")/, `$1${title}$2`);
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out = out.replace(
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/(<meta\s+property="og:description"\s+content=")[^"]*(")/,
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`$1${description}$2`,
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);
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out = out.replace(/(<meta\s+property="og:url"\s+content=")[^"]*(")/, `$1${url}$2`);
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out = out.replace(/(<meta\s+name="twitter:title"\s+content=")[^"]*(")/, `$1${title}$2`);
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out = out.replace(
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/(<meta\s+name="twitter:description"\s+content=")[^"]*(")/,
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`$1${description}$2`,
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);
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out = out.replace(/(<link\s+rel="canonical"\s+href=")[^"]*(")/, `$1${url}$2`);
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return out;
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}
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const template = readFileSync(distHtml, 'utf8');
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if (!template.includes('rel="canonical"') || !template.includes('og:title')) {
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console.error('dist/index.html is missing SEO tags — check index.html');
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process.exit(1);
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}
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const written = [];
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for (const route of routes) {
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const url = route.path === '/' ? `${origin}/` : `${origin}${route.path}`;
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const file = route.path === '/' ? 'index.html' : `${route.path.replace(/^\//, '')}/index.html`;
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const dest = join(root, 'dist', file);
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mkdirSync(dirname(dest), { recursive: true });
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writeFileSync(
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dest,
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apply(template, {
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title: route.title,
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description: route.description,
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url,
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robots: 'index, follow',
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}),
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);
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written.push(file);
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}
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writeFileSync(
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join(root, 'dist', '404.html'),
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apply(template, {
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title: 'Page not found — LexAI',
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description: 'That address is not a LexAI page.',
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url: `${origin}/`,
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robots: 'noindex, follow',
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}),
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);
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written.push('404.html');
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console.log('SEO HTML written for', written.join(', '));
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