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utils.js
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utils.js
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import fs from 'fs'
async function exists (name) {
return new Promise(resolve => fs.exists(name, resolve))
}
async function mkdir (name) {
if (!await exists(name)) {
const parts = name.split('/')
for (let i = 1; i <= parts.length; i++) {
const branch = parts.slice(0, i).join('/')
if (!await exists(branch)) {
await new Promise(resolve => fs.mkdir(branch, resolve))
}
}
}
}
async function listDir (name) {
if (!await exists(name)) {
return []
}
return await new Promise(resolve => {
fs.readdir(name, (err, files) => {
resolve(err ? [] : files)
})
})
}
async function write (name, data) {
return new Promise(resolve => fs.writeFile(name, data, resolve))
}
async function read (name) {
return await new Promise(resolve => {
fs.readFile(name, 'utf-8', (err, data) => {
resolve(err ? null : data)
})
})
}
async function remove (name) {
return await new Promise(resolve => {
fs.unlink(name, resolve)
})
}
export async function sleep (ms) {
await new Promise(resolve => setTimeout(resolve, ms))
}
export const fsUtils = {
exists,
mkdir,
write,
read,
remove,
listDir
}