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使用webpack打包，如果文件内容有修改，那么会出现些重复多余的文件。 遇到这样的事，很多时候我们会采用gulp +webpack的方式处理，但是如果只是使用gulp的删除文件功能就采用gulp那真的是大炮打蚊子。前两个有朋友问我怎么做，我就把自己用node删除文件的方法共享给了他，稍微改造了下，觉得还行，比较好用，所以分享一下，有需要的朋友可以下载。 //del.js /**
* Created by lenovo on 2017/5/12.
*/
var fs = require('fs');
//获取从命令行传入的参数列表
function getParamList(val, config) {
var valList = val.split('=');
if (valList[0] === config) {
return valList[1].split(',');
} else {
return [];
}
}
//获取从命令行传入的参数列表（去除默认传入的两个）
var agrv = process.argv.slice(2);
if (agrv.length > 0) {
agrv.forEach(function(val, index, array) {
var list = getParamList(val, '--targets');
console.log('list', list);
list.forEach(function(ele, ind) {
deleteTarget(ele || './dist');
})
});
} else {
//如果从命令中没有传入参数，则直接默认删除顶级目录下的dist目录。
deleteTarget('./dist');
}
// 删除目标文件夹或文件
function deleteTarget(fileUrl) {
// 如果当前url不存在，则退出
if (!fs.existsSync(fileUrl)) return;
// 当前文件为文件夹时
if (fs.statSync(fileUrl).isDirectory()) {
var files = fs.readdirSync(fileUrl);
var len = files.length,
removeNumber = 0;
if (len > 0) {
files.forEach(function(file) {
removeNumber ++;
var stats = fs.statSync(fileUrl+'/'+file);
var url = fileUrl + '/' + file;
if (fs.statSync(url).isDirectory()) {
deleteTarget(url);
} else {
fs.unlinkSync(url);
}
});
if (removeNumber === len) {
// 删除当前文件夹下的所有文件后，删除当前空文件夹（注：所有的都采用同步删除）
fs.rmdirSync(fileUrl);
console.log('删除文件夹' + fileUrl + '成功');
}
} else {
fs.rmdirSync(fileUrl)
}
} else {
// 当前文件为文件时
fs.unlinkSync(fileUrl);
console.log('删除文件' + fileUrl + '成功');
}
}
//package.json {
"name": "webpack-maoruibin2.0",
"version": "1.0.1",
"description": "",
"author": {
"name": "maoruibin",
"email": "[email protected]"
},
"main": "index.js",
"scripts": {
"test": "echo "Error: no test specified" && exit 1",
"start": "webpack-dev-server --hot",
**"webpack": "node server/delete.js && webpack",
"webpack:p": "node server/delete.js --targets=./dist,test2 && webpack",**
"del": "node server/delete.js",
"build": "babel-node ./node_modules/webpack/bin/webpack"
},
"dependencies": {
"vue": "^2.3.3"
},
"devDependencies": {
"babel-core": "^6.24.1",
"babel-loader": "^7.0.0",
"babel-preset-es2015": "^6.24.1",
"babel-preset-stage-0": "^6.24.1",
"babel-preset-stage-1": "^6.24.1",
"babel-preset-stage-2": "^6.24.1",
"babel-preset-stage-3":"^6.24.1",
"babel-plugin-transform-class-properties": "^6.24.1",
"html-webpack-plugin": "^2.28.0",
"webpack-dev-server": "^2.4.5",
"webpack": "^2.5.1",
"glob": "^7.1.1",
"string-loader": "^0.0.1",
"style-loader": "^0.17.0",
"css-loader": "^0.28.1",
"url-loader": "^0.5.8",
"file-loader":"^0.11.1",
"extract-text-webpack-plugin":"^2.1.0",
"vue-loader":"^12.0.3",
"vue-template-compiler":"^2.3.3",
"webpack-chunk-hash": "^0.4.0",
"inline-manifest-webpack-plugin":"^3.0.1"
},
"author": "",
"license": "ISC"
}
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