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travel.js
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const fs = require('fs')
const path = require('path')
/**
* 目录遍历 - 同步版
* @param {string} dir
* @param {func} callback
*/
function travelSync(dir, callback) {
fs.readdirSync(dir).forEach(function (file) {
var pathname = path.join(dir, file)
if (fs.statSync(pathname).isDirectory()) {
travel(pathname, callback)
} else {
callback(pathname)
}
})
}
/**
* 目录遍历 - 异步版
* @param {string} dir
* @param {func} callback
* @param {func} finish
*/
function travel(dir, callback, finish) {
fs.readdir(dir, function (err, files) {
(function next(i) {
if (i < files.length) {
let pathname = path.join(dir, files[i])
fs.stat(pathname, function (err, stats) {
if (stats.isDirectory()) {
travel(pathname, callback, function () {
next(i + 1)
})
} else {
callback(pathname)
next(i + 1)
}
})
} else {
finish && finish()
}
}(0))
})
}