data/utils/img-opt.js

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2024-09-08 19:50:04 +02:00
import { run } from "https://deno.land/x/run_simple@2.3.0/mod.ts";
import { join } from "https://deno.land/std@0.224.0/path/mod.ts";
import { emptyDir } from "https://deno.land/std@0.224.0/fs/empty_dir.ts";
2024-03-07 17:47:20 +01:00
async function optimizeDir (dir, sizes) {
await emptyDir(join(dir, 'thumbs'))
for await (const f of Deno.readDir(dir)) {
const [ name, ext ] = f.name.split('.')
if (!['jpg', 'jpeg', 'png'].includes(ext)) {
continue;
}
console.log(`processing: ${name}`)
const explain = await run(`identify ${join(dir, f.name)}`);
const [ _, format, resolution ] = explain.split(' ')
const [ width, height ] = resolution.split('x').map(c => Number(c))
for (const size of Object.keys(sizes)) {
const sizeConf = sizes[size];
const outputFn = join(dir, 'thumbs', `${name}-${size}.webp`)
let resize = `-resize ${sizeConf.width} ${Math.round(height/(width/sizeConf.width))}`;
if (width <= sizeConf.width) {
resize = '';
}
//console.log(outputFn, resolution, resize)
await run(`cwebp ${join(dir, f.name)} -o ${outputFn}${resize ? ' '+resize : ''}`)
console.log(`File writted: ${outputFn}`)
}
}
}
await optimizeDir('./src/people/_images', { '64px': { width: 64 }, '128px': { width: 128 }, '400px': { width: 400 } })
const eventSizes = { '128px': { width: 128 }, '360px': { width: 360 }, '640px': { width: 640 } }
await optimizeDir('./src/events/_images/2023', eventSizes)
await optimizeDir('./src/events/_images/2024', eventSizes)
//console.log(await run('ls'))