nodejs calls the cmd command to copy the directory_node.js
工作中一直需要对一些官网进行文件复制,并且替换内部的一些信息,以前都是手动操作的,或者通过自己写的firefox扩展来进行文件操作的。
现在前端有nodejs了,为什么不用nodejs写个一键式的呢~~
1.复制目录
复制文件的时候,如果直接创建一个不存在的文件目录下就不成功了。要上级目录存在才可以。(nodejs API接触时间不长,如有有误,谢谢指正)。
这样在写入文件的时候就检测一下目录是否存在,不存在则判断上级目录,之后一级一级目录创建回来,之后就可以复制文件了
var dirCache = {};//缓存减少判断 function makedir (pathStr, callback) { if (dirCache[pathStr] == 1) { callback(); } else { fs.exists(pathStr, function (exists) { if (exists == true) { dirCache[pathStr] == 1; callback(); } else { makedir(path.dirname(pathStr), function () { fs.mkdir(pathStr, function () { dirCache[pathStr] == 1; callback(); }) }); } }) } };
2.后来还是考虑通过CMD命令“xcopy”实现,但是试了好9,直接执行,可是一直不行,有解决的,欢迎指正
var exec = require('child_process').exec; exec('xcopy D:\\WORK_new\\odinQuest D:\\WORK_new\\newGame /s /e /Q /Y /I', function (error, stdout, stderr) { if (error !== null) { //console.log('exec error: ' + error); } });
后来通过将CMD命令写入文件,通过call的方式调用的,就可以了。
fs.writeFile('xcopy.bat', cmdstr, function (err) { if (err) throw err; var exec = require('child_process').exec; exec('call "'+process.cwd()+'/xcopy.bat', function (error, stdout, stderr) { if (error !== null) { //console.log('exec error: ' + error); } }); });
嗯,代码写的也就那样,都是一步步的异步嵌套,就不放出来了,省的被笑话
以上所述就是本文的全部内容了,希望大家能够喜欢。

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