valknar
1037b84eaa
scripts/cover.js computes the exact cover canvas dimensions from the page count in book-meta.json (written by build.js), using the KDP Premium Color spine formula (0.002347 in/page), and renders a Nunjucks template to a single PDF containing back cover, spine, and front cover with bleed (0.125 in) and safe-zone overlay guides. - `pnpm cover` — generate output/cover.pdf - `pnpm all` — build interior + both PDFs in one command - Cover artwork slots: images/cover/front.png, images/cover/back.png Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
78 lines
2.4 KiB
JavaScript
78 lines
2.4 KiB
JavaScript
import { readdir, readFile, writeFile, access } 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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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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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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async function loadStories() {
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const contentDir = join(root, 'content');
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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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let finale = null;
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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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if (data.type === 'finale') {
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finale = data;
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continue;
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}
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// Split body by --- into individual scene texts
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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 imagePath = join(root, scene.image);
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const imageExists = await fileExists(imagePath);
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return {
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...scene,
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imageExists,
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// Relative path from output/book.html back to project root
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image: `../${scene.image}`,
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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, finale: finale || {} };
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}
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async function build() {
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const { stories, finale } = await loadStories();
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const html = env.render('book.html', { stories, finale });
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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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// title page + copyright + TOC + (4 scenes × 2 pages per story) + finale
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const pageCount = 3 + stories.reduce((acc, s) => acc + s.scenes.length * 2, 0) + 1;
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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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