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import { promises as fs } from 'fs'
import sharp from 'sharp'
import { cpus } from 'os'
// read the file names in the backgrounds folder
const backgrounds = await fs.readdir('static/backgrounds')
// sort by natural order
backgrounds.sort((a, b) => a.localeCompare(b, 'en', { numeric: true, ignorePunctuation: true }))
await fs.writeFile(
'src/_backgrounds.json',
JSON.stringify(backgrounds),
{ encoding: 'utf8' }
)
// resize the backgrounds
async function resizeBackground(name) {
const rawEncodedImage = await sharp(`static/backgrounds/${name}`)
.rotate()
.resize(512)
.jpeg({ mozjpeg: true, quality: 30 })
.toBuffer()
await fs.writeFile(`static/backgrounds-small/${name}`, rawEncodedImage)
}
try {
await fs.rm('static/backgrounds-small', { recursive: true })
} catch {
// it errors if the directory already doesn't exist
}
await fs.mkdir('static/backgrounds-small', { recursive: true })
await Promise.all(backgrounds.map(b => resizeBackground(b)))
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