53 lines
1.6 KiB
JavaScript
53 lines
1.6 KiB
JavaScript
const fs = require('fs')
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const path = require('path')
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const crypto = require('crypto')
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function sortName(item1, item2) {
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if(item1.name > item2.name) {
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return 1
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} else if(item1.name < item2.name) {
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return -1
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}
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return 0
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}
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/**
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* 递归遍历目录中的所有文件
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* @param {String} imageFolderPath 文件夹路径
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* @param {Array} images 图片列表
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* @param {String} rootPath 根路径
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*/
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function readDirSync(imageFolderPath, images, rootPath, callback, count={fileCount:0, finishCount:0}){
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var files = fs.readdirSync(imageFolderPath);
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files.forEach(item => {
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var fileInfo = fs.statSync(`${imageFolderPath}/${item}`)
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if(fileInfo.isDirectory()){
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// 该文件是一个目录, 则遍历该目录内容
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readDirSync(`${imageFolderPath}/${item}`, images, rootPath, callback, count)
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} else {
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count.fileCount ++
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var stream = fs.createReadStream(`${imageFolderPath}/${item}`)
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var fsHash = crypto.createHash('md5')
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stream.on('data', data => {
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fsHash.update(data)
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})
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stream.on('end', () => {
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count.finishCount ++
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images.push({
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name: `${imageFolderPath}/${item}`.replace(rootPath, ''),
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md5: fsHash.digest('hex')
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})
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if(count.fileCount === count.finishCount && typeof callback === 'function') {
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callback(images.sort(sortName))
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}
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})
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}
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})
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}
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module.exports = function (rootPath, imageFloder, callback) {
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readDirSync(path.resolve(rootPath, imageFloder).replace(/\\/g,'/'), [], rootPath, callback)
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}
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