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gallery/scripts/build.js
Ryan Chou 3439fc834f
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add: script to generate thumbnails
2026-03-22 19:54:53 -07:00

67 lines
1.7 KiB
JavaScript

const fs = require("fs");
const path = require("path");
const { loadMeals, repoRoot } = require("./lib/meals");
const indexTemplatePath = path.join(repoRoot, "templates", "index.html");
const indexOutputPath = path.join(repoRoot, "index.html");
function detectEol(text) {
return text.includes("\r\n") ? "\r\n" : "\n";
}
function escapeHtml(value) {
return value
.replace(/&/g, "&")
.replace(/</g, "&lt;")
.replace(/"/g, "&quot;");
}
function renderGalleryItem(meal, eol) {
const attrs = [`class="thumbnail"`, `href="images/fulls/${meal.id}.jpg"`];
if (meal.position) {
attrs.push(`data-position="${escapeHtml(meal.position)}"`);
}
return [
"\t\t\t\t<article>",
`\t\t\t\t\t<a ${attrs.join(" ")}><img src="images/thumbs/${meal.id}.jpg" alt="" /></a>`,
`\t\t\t\t\t<h2>${escapeHtml(meal.title)}</h2>`,
`\t\t\t\t\t<p>${escapeHtml(meal.description)}</p>`,
"\t\t\t\t</article>",
].join(eol);
}
function renderGallery(meals, eol) {
return meals.map((meal) => renderGalleryItem(meal, eol)).join(eol);
}
function replaceBlock(template, token, replacement) {
const pattern = new RegExp(`^[\\t ]*\\{\\{${token}\\}\\}$`, "m");
if (!pattern.test(template)) {
throw new Error(`Template is missing required block token "{{${token}}}"`);
}
return template.replace(pattern, () => replacement);
}
function buildIndex() {
const template = fs.readFileSync(indexTemplatePath, "utf8");
const eol = detectEol(template);
const meals = loadMeals();
return replaceBlock(template, "gallery_items", renderGallery(meals, eol));
}
function writeFile(filePath, contents) {
fs.writeFileSync(filePath, contents);
}
function main() {
writeFile(indexOutputPath, buildIndex());
}
main();