valknar
475bbf0a19
4096×4096 source images decoded simultaneously by Chromium consumed ~3.2 GB, exhausting WSL2 RAM. Build now uses sharp to downsize to 2550×2550 (8.5 in × 300 DPI) into output/resized/ before Puppeteer loads them, cutting in-memory footprint to ~1.25 GB. Also adds all story images (01–12) to the repository. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
111 lines
3.5 KiB
JavaScript
111 lines
3.5 KiB
JavaScript
import { readdir, readFile, writeFile, access, mkdir } from 'fs/promises';
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import { join, resolve, dirname } from 'path';
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import { fileURLToPath } from 'url';
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import matter from 'gray-matter';
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import { marked } from 'marked';
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import nunjucks from 'nunjucks';
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import sharp from 'sharp';
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const __dir = dirname(fileURLToPath(import.meta.url));
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const root = resolve(__dir, '..');
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// Nunjucks: load templates relative to project root
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const env = nunjucks.configure(join(root, 'templates'), { autoescape: true });
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const PRINT_PX = 2550; // 8.5 in × 300 DPI
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async function fileExists(path) {
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try { await access(path); return true; } catch { return false; }
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}
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// Resize image to PRINT_PX on the long side, write to output/resized/ tree.
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// Returns the resized file path (absolute). Skips resize if already ≤ PRINT_PX.
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async function resizeForPrint(srcAbs, resizedDir) {
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const rel = srcAbs.replace(root + '/', ''); // e.g. images/01/scene-1.png
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const dest = join(resizedDir, rel);
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const destDir = dirname(dest);
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await mkdir(destDir, { recursive: true });
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const meta = await sharp(srcAbs).metadata();
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const maxDim = Math.max(meta.width || 0, meta.height || 0);
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if (maxDim <= PRINT_PX) {
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// Already small enough — copy as-is
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await sharp(srcAbs).toFile(dest);
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} else {
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await sharp(srcAbs)
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.resize(PRINT_PX, PRINT_PX, { fit: 'inside', withoutEnlargement: true })
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.png({ compressionLevel: 6 })
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.toFile(dest);
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}
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return dest;
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}
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async function loadStories() {
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const contentDir = join(root, 'content');
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const resizedDir = join(root, 'output', 'resized');
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const files = (await readdir(contentDir)).filter(f => f.endsWith('.md')).sort();
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const stories = [];
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for (const file of files) {
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const raw = await readFile(join(contentDir, file), 'utf-8');
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const { data, content } = matter(raw);
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if (data.type === 'front-matter') continue;
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const sceneTexts = content.split(/\n---\n/).map(t => t.trim()).filter(Boolean);
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const scenes = await Promise.all(
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(data.scenes || []).map(async (scene, i) => {
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const srcAbs = join(root, scene.image);
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const imageExists = await fileExists(srcAbs);
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let imageSrc = `../${scene.image}`;
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if (imageExists) {
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await resizeForPrint(srcAbs, resizedDir);
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// Relative path from output/book.html to output/resized/
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imageSrc = `resized/${scene.image}`;
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}
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return {
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...scene,
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imageExists,
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image: imageSrc,
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html: marked.parse(sceneTexts[i] || ''),
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};
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})
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);
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stories.push({ ...data, scenes });
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}
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return stories;
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}
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async function loadFrontMatter() {
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const raw = await readFile(join(root, 'content', '00-front-matter.md'), 'utf-8');
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return matter(raw).data;
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}
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async function build() {
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const [stories, frontMatter] = await Promise.all([loadStories(), loadFrontMatter()]);
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const html = env.render('book.html', { stories, frontMatter });
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const outPath = join(root, 'output', 'book.html');
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await writeFile(outPath, html, 'utf-8');
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// imprint + title page + TOC + (4 scenes × 2 pages per story)
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const pageCount = 3 + stories.reduce((acc, s) => acc + s.scenes.length * 2, 0);
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await writeFile(
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join(root, 'output', 'book-meta.json'),
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JSON.stringify({ pageCount, storyCount: stories.length, builtAt: new Date().toISOString() }, null, 2),
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'utf-8'
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);
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console.log(`Built output/book.html — ${stories.length} stories, ${pageCount} pages`);
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}
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build().catch(err => { console.error(err); process.exit(1); });
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