A list of classless CSS themes/frameworks with screenshots
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#! /usr/bin/env -S deno run --allow-env --allow-net --allow-read --allow-run --allow-write --check
// Generate the screenshot and its thumbnail for a project.
// To install the dependencies on Debian/Ubuntu:
// $ sudo apt install imagemagick optipng
import puppeteer from "https://deno.land/x/puppeteer@16.2.0/mod.ts";
const templateFile = "screenshot-page.html";
const temporaryFile = "temp.html";
const slugify = (str: string) =>
str
.toLowerCase()
.replace(/[^a-z0-9.]+/g, "-")
.replace(/(^-|-$)/g, "");
const saveScreenshot = async (src: string, dest: string) => {
// For whatever reason, I get screenshots 16 pixels wider than the requested
// viewport size.
const browser = await puppeteer.launch({
defaultViewport: { width: 1024 - 16, height: 1024, deviceScaleFactor: 1 },
});
const page = await browser.newPage();
await page.goto(src);
await page.screenshot({ fullPage: true, path: dest });
await browser.close();
};
if (Deno.args.length !== 2) {
console.error(
"usage: gen-screenshot.ts project-name css-file\n\n" +
"The image filename will be derived from the project name.",
);
Deno.exit(1);
}
const screenshotFile = `${slugify(Deno.args[0])}.png`;
const cssFile = Deno.args[1];
try {
const htmlTemplate = await Deno.readTextFile(templateFile);
const css = await Deno.readTextFile(cssFile);
const html = htmlTemplate.replace(/%CSS_HERE%/, css);
await Deno.writeTextFile(temporaryFile, html);
const tempFilePath = await Deno.realPath(temporaryFile);
await saveScreenshot(
`file://${tempFilePath}`,
`screenshot/${screenshotFile}`,
);
await Deno.run({
cmd: [
"convert",
"-resize",
"25%",
"-adaptive-sharpen",
"10",
`screenshot/${screenshotFile}`,
`thumbnail/${screenshotFile}`,
],
}).status();
await Deno.run({
cmd: [
"optipng",
"-o",
"5",
"-strip",
"all",
`screenshot/${screenshotFile}`,
`thumbnail/${screenshotFile}`,
],
}).status();
} catch (err) {
console.error(err);
} finally {
Deno.remove(temporaryFile);
}