nodejs 批量编译less 文件为css

http://www.html-js.com/article/1359

咱们在用less时，有时会有不少less块，一个一个手动编译很麻烦，使用下面的代码，能够一次性递归编译 在项目less文件目录，新建个js文件。粘贴代码以下

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var fs = require('fs'), path = require('path'), exec = require('child_process').exec, sourcePath, targetPath;  //获取命令行中的路径 process.argv.forEach(function (val, index, array) { if (index == 2) { sourcePath = val; } if (index == 3) { targetPath = val; } }) var lessc = function (rootPath, targetPath) { //取得当前绝对路径 rootPath = path.resolve(rootPath); //目标路径绝对路径 targetPath = path.resolve(targetPath); //判断目录是否存在 fs.exists(rootPath, function (exists) {  //路径存在 if (exists) {  //获取当前路径下的全部文件和路径名 var childArray = fs.readdirSync(rootPath); if (childArray.length) { for (var i = 0; i < childArray.length; i++) { var currentFilePath = path.resolve(rootPath, childArray[i]); var currentTargetPath = path.resolve(targetPath, childArray[i])  //读取文件信息 var stats = fs.statSync(currentFilePath);  //如果目录则递归调用 if (stats.isDirectory()) { lessc(currentFilePath, currentTargetPath); } else {  //判断文件是否为less文件 if (path.extname(currentFilePath) === ".less") { var newFilePath = path.resolve(targetPath, path.basename(currentFilePath, '.less') + ".css"); if (!fs.existsSync(targetPath)) { fs.mkdirSync(targetPath); } console.log(newFilePath); exec("lessc -x " + currentFilePath + " > " + newFilePath); } } } } } else { console.log("directory is not exists"); } }); } lessc('./', './css/'); 

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而后运行node

node 新建的js文件