找到的解決方案請查看此帖子的底部 嘗試使用帶有NodeJS的構建腳本來構建LESS(更少的CSS) 我正在嘗試使用節點腳本更少地構建一個css文件,我的文件結構無法更改,看起來像: /public/css/app.css /resources/assets/less/xenon.less /quickSync/02_lessCompiler.js 較少文件的內容實際上包括與.less文件本身相同且在層次結構中更高級別的其他較少文件,例如: //導入Bootstrap變量和Mixins @import“ bs-less / variables.less”; @import“ bs-less / mixins.less”; // LessHat @import“ other-less / lesshat.less”; ...等 從上面的鏈接,我嘗試了以下操作: var less = require('less'); var fs = require('fs'); var path = require('path'); var basePath = __dirname +'/ ..'; var lessPath = basePath +'/resources/assets/less/xenon.less', outputPath = basePath +'/public/css/app.css'; fs.readFile(lessPath,function(error,data){ 數據= data.toString(); console.log(錯誤); console.log(data); less.render(data,function(e,css){ console.log(e); console.log(css); fs.writeFile(outputPath,css,function(err){ if(err){ console.log(err); } console.log('done'); }); }); }); 上述解決方案的控制台輸出為: 空值 //導入Bootstrap變量和Mixins @import“ bs-less / variables.less”; @import“ bs-less / mixins.less”; // LessHat @import“ other-less / lesshat.less”; // Xenon Basic UI @import“ xenon-core.less”; // 形式 @import“ xenon-forms.less”; //氙氣附加組件 @import“ xenon-components.less”; //氙氣皮 @import“ xenon-skins.less”; {[錯誤:未找到'xenon-skins.less'。嘗試過-氙氣皮少[氙氣皮少] 類型:“文件”, 文件名:“輸入”, 索引:311, 行:18, callLine:NaN, callExtract:未定義, 列:0, 提取:['// Xenon Skins','@import“ xenon-skins.less”;',未定義], 消息:找不到“ \'xenon-skins.less \”。嘗試過-少了氙氣,少了氙氣', 堆棧:未定義} 未定義 完成 但是,輸出文件只是讀取 未定義 未定義 然後,我找到了這些人的博客:http://onedayitwillmake.com/blog/2013/03/compiling-less-from-a-node-js-script/並嘗試了以下操作: var less = require('less'); var fs = require('fs'); var path = require('path'); var lessPath = basePath +'/resources/assets/less/xenon.less', outputPath = basePath +'/public/css/app.css'; //確保目錄存在 var sureDirectory =函數(文件路徑){ var dir = path.dirname(filepath); var existSync = fs.existsSync || path.existsSync; 如果(!existsSync(dir)){ fs.mkdirSync(dir); } }; fs.readFile(lessPath,function(error,data){ var dataString = data.toString(); var options = { 路徑:[basePath +'/ resources / assets / less'],// .less文件搜索路徑 outputDir:basePath +'/ public / css',//輸出目錄,注意'/' 優化:1,//優化級別,越高越好,但波動性更大-1是一個好的值 filename:“ xenon.less”,//根.less文件 compress:false,//壓縮? yuicompress:false //使用YUI壓縮器? }; console.log(options); options.outputDir = path.resolve(process.cwd(),options.outputDir)+“ /”; sureDirectory(options.outputDir); var parser = new less.Parser(options); console.log('parsing'); parser.parse(dataString,function(error,cssTree){ 如果(錯誤){ console.log('少編譯錯誤:'); console.log(錯誤); 返回false; } //從cssTree創建CSS var cssString = cssTree.toCSS({ 壓縮:options.compress, yuicompress:options.yuicompress }); fs.writeFile(outputPath,cssString,function(err){ logTime('Compiled less:'+ outputPath); //運行mai傳遞的回調函數 打回來(); }); }); }); 但是,此輸出是錯誤的: D:\ myproject \ node_modules \ less \ lib \ less \ parser \ parser.js:117 imports.contents [fileInfo.filename] = str; ^ TypeError:無法讀取未定義的屬性“內容” 在Object.Parser.parse(D:\ myproject \ node_modules \ less \ lib \ less \ parser \ parser.js:117:20) 在D:\ myproject \ quickSync \ 02_lessCompiler.js:51:16 在FSReqWrap.readFileAfterClose [完成時](fs.js:380:3) 這讓我發瘋,隨便你走吧: require('node-sass')。render({ 文件:scssPath, outFile:outputPath, outputStyle:'展開', sourceComments:正確 },函數(錯誤,結果){ //將結果寫入磁盤。 }); 用少節點編譯器構建CSS的最簡單方法是什麼? 解: fs.readFile(lessPath,function(error,data){ 數據= data.toString(); less.render(data,{ 路徑:[basePath +'/ resources / assets / less /'] },function(e,css){ fs.writeFile(outputPath,css.css,function(err){ if(err){ console.log(err); } console.log('done'); }); }); });
2021-01-17 08:12:53
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