219 lines
4.3 KiB
JavaScript
219 lines
4.3 KiB
JavaScript
/**
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*
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* @authors yutent (yutent@doui.cc)
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* @date 2015-12-28 14:28:38
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*
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*/
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"use strict";
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const fs = require('fs'),
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path = require('path');
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class Iofs {
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constructor(){
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this.self = fs
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}
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/**
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* [cat 文件读取]
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* @param {String} file [文件路径]
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* @param {Function} cb [回调] 可选
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*/
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cat(file){
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try{
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return fs.readFileSync(file)
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}catch(err){
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console.error(err)
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return null
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}
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}
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/**
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* [ls 读取整个目录(不遍历子目录)]
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* @param {string} file [目标路径]
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* @return {array} [返回目标目录所有文件名和子目录名, 不包括'.'和'..']
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*/
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ls(file){
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try{
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return fs.readdirSync(file)
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}catch(err){
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console.error(err)
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return null
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}
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}
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/**
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* [echo 写文件]
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* @param {String|Buffer|Number} data [要写入的数据]
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* @param {String} file [要写的文件]
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* @param {Boolean} append [是否在后面追加，默认否]
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* @param {String} encode [编码, 默认utf8]
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*/
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echo(data, file, append, encode){
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if(!file){
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return data;
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}
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let updir = path.parse(file).dir,
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opt = {};
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if(!this.isdir(updir)){
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this.mkdir(updir)
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}
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if(append && typeof append === 'string'){
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encode = append;
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append = false;
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opt.encoding = encode;
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}else{
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if(typeof encode === 'string'){
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opt.encoding = encode
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}
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}
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try{
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if(!!append){
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fs.appendFileSync(file, data, opt)
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}else{
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fs.writeFileSync(file, data, opt)
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}
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}catch(err){
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console.error(err)
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}
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}
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//修改权限
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chmod(path, mode){
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try{
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fs.chmodSync(path, mode)
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}catch(err){
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console.error(err)
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}
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}
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/**
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* [mv 移动文件,兼具重命名功能]
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* @param {String} from [原路径/原名]
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* @param {String} to [目标路径/新名]
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*/
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mv(from, to){
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let updir = path.parse(to).dir
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if(!this.isdir(updir))
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this.mkdir(updir)
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try{
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fs.renameSync(from, to)
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}catch(e){
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let rs = fs.createReadStream(from),
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ws = fs.createWriteStream(to);
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rs.pipe(ws)
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rs.on('end', err => {
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this.rm(from)
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})
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}
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}
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cp(from, to){
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let updir = path.parse(to).dir
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if(!this.isdir(updir)){
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this.mkdir(updir)
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}
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let rs = fs.createReadStream(from),
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ws = fs.createWriteStream(to);
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rs.pipe(ws)
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rs.on('end', err => console.error(err))
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}
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/**
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* [rm 删除文件/目录]
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* @param {[type]} from [源文件/目录路径]
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* @param {[type]} recursion [是否递归删除，若删除目录，此值须为true]
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*/
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rm(from, recursion){
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try{
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if(!!recursion){
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fs.rmdirSync(from)
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}else{
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fs.unlinkSync(from)
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}
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}catch(err){
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console.error(err)
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}
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}
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/**
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* [stat 返回文件/目录的状态信息]
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* @param {[type]} path [目标路径]
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*/
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stat(path){
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try{
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return fs.statSync(path)
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}catch(err){
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return null
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}
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}
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/**
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* [isdir 判断目标是否为目录]
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* @param {String} path [目标路径]
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*/
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isdir(path){
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try{
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return this.stat(path).isDirectory()
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}catch(err){
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return false
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}
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}
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/**
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* [mkdir 新建目录]
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* @param {String} dir [目标路径]
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*/
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mkdir(dir){
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let updir = path.parse(dir).dir
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if(!updir)
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return
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if(!this.isdir(updir)){
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this.mkdir(updir)
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}
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try{
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fs.mkdirSync(dir)
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}catch(err){
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console.error(err)
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}
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}
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/**
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* [exists 判断目标(文件/目录)是否存在]
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* @param {String} file [目标路径]
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*/
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exists(file){
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return fs.existsSync(file)
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}
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}
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module.exports = new Iofs |