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#!/usr/bin/env node
/**
* Site Generator
*
* Reads markdown summaries from summaries/{id}.md and embeds them into
* data/books.json, then creates a dist directory with all static assets.
*
* Usage: node build.js
*
* Run this after editing any summary markdown files.
*/
const fs = require('fs');
const path = require('path');
const ROOT_DIR = __dirname;
const SUMMARIES_DIR = path.join(ROOT_DIR, 'summaries');
const BOOKS_JSON = path.join(ROOT_DIR, 'data', 'books.json');
const DIST_DIR = path.join(ROOT_DIR, 'dist');
function readSummary(id) {
const filePath = path.join(SUMMARIES_DIR, `${id}.md`);
if (!fs.existsSync(filePath)) {
return null;
}
const content = fs.readFileSync(filePath, 'utf8').trim();
const lines = content.split('\n');
// Skip the title line (# Title) and return the rest
const summaryLines = lines.slice(1).join('\n').trim();
return summaryLines || null;
}
/**
* Recursively copies a directory from src to dest.
*/
function copyDir(src, dest) {
fs.mkdirSync(dest, { recursive: true });
const entries = fs.readdirSync(src, { withFileTypes: true });
for (const entry of entries) {
const srcPath = path.join(src, entry.name);
const destPath = path.join(dest, entry.name);
if (entry.isDirectory()) {
copyDir(srcPath, destPath);
} else {
fs.copyFileSync(srcPath, destPath);
}
}
}
/**
* Embeds summaries from markdown files into books.json.
* Returns the updated books data.
*/
function embedSummaries() {
console.log('Embedding summaries...\n');
const booksData = JSON.parse(fs.readFileSync(BOOKS_JSON, 'utf8'));
let updated = 0;
let missing = [];
for (const book of booksData.books) {
const summary = readSummary(book.id);
if (summary) {
book.summary = summary;
updated++;
console.log(`✓ ${book.title}`);
} else {
delete book.summary;
missing.push(book.title);
console.log(`✗ ${book.title} (no summary file)`);
}
}
fs.writeFileSync(BOOKS_JSON, JSON.stringify(booksData, null, 2));
console.log(`\nSummaries embedded: ${updated}`);
console.log(`Missing summaries: ${missing.length}`);
if (missing.length > 0) {
console.log('\nCreate these files to add summaries:');
missing.forEach(title => {
const book = booksData.books.find(b => b.title === title);
console.log(` summaries/${book.id}.md`);
});
}
return booksData;
}
/**
* Creates the dist directory with all static assets for distribution.
*/
function createDist() {
console.log('\n--- Creating dist directory ---\n');
// Remove existing dist directory
if (fs.existsSync(DIST_DIR)) {
fs.rmSync(DIST_DIR, { recursive: true });
}
fs.mkdirSync(DIST_DIR);
// Copy static files
fs.copyFileSync(path.join(ROOT_DIR, 'index.html'), path.join(DIST_DIR, 'index.html'));
console.log('✓ index.html');
// Copy directories
copyDir(path.join(ROOT_DIR, 'css'), path.join(DIST_DIR, 'css'));
console.log('✓ css/');
copyDir(path.join(ROOT_DIR, 'js'), path.join(DIST_DIR, 'js'));
console.log('✓ js/');
copyDir(path.join(ROOT_DIR, 'data'), path.join(DIST_DIR, 'data'));
console.log('✓ data/');
copyDir(path.join(ROOT_DIR, 'images'), path.join(DIST_DIR, 'images'));
console.log('✓ images/');
console.log('\nDist directory created at: dist/');
}
function build() {
console.log('=== Building Site ===\n');
embedSummaries();
createDist();
console.log('\n=== Build Complete ===');
console.log('Site is ready. Open dist/index.html in a browser.');
}
build();
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