check_frontend_files.js

const fs = require('fs');
const path = require('path');

module.exports = function(grunt){
	directories = ['src/Venus.Web/Views', 'src/Venus.Admin.Web/Views'];
	files_extensions = ['cshtml'];


	//I get that function from https://gist.github.com/kethinov/6658166
	function getFileList(dir, fileList = []){
	  fs.readdirSync(dir).forEach(file => {
	    const filePath = path.join(dir, file)

	    fileList.push(
	      fs.statSync(filePath).isDirectory() ? {[file]: getFileList(filePath)}
	        : file
	    )
	  })
	  return fileList
	}

	function fileJsonToPath(fileObject){
		if(typeof fileObject == 'string') {
			return fileObject;
		}
		var keys = Object.keys(fileObject);

		results = []
		for(var i in keys){
			var key = keys[i];

			for(var j in fileObject[key])
				results.push(key + '\\' + fileJsonToPath(fileObject[key][j]));
		}

		return results;
	}

	function getFilesPaths(){
		var fileList = [];
		for(i in directories){
			fileList.concat(getFileList(directories[i]));
		}

		files = []

		for(var i in fileList){
			var result = fileJsonToPath(fileList[i]);
			files = files.concat(result);
		}

		return files;
	}

	function getFilesPathsByExtension(extensionFilter){
		return getFilesPaths().filter((item) => item.endsWith(extensionFilter));
	}


	grunt.log.write('Checking if frontend files are in Venus.Web and Venus.Admin.Web');
	fs.readFile('src/Venus.Web/Venus.Web.csproj', 'utf8', function(err, csproj){
		if(err){
			return grunt.log.error(err);
		}


		var cshtmlFiles = getFilesPathsByExtension('cshtml');
		var fileMissing = false;

		for(var i in cshtmlFiles){
			debugger;
			if(!csproj.includes(cshtmlFiles[i])){
				fileMissing = true;
				grunt.log.error('File ' + cshtmlFiles[i] + ' was not added to Venus.Web.csproj');
			}
		}

		if(!fileMissing){
			grunt.log.ok('All cshtml was added to csproj');
		}
		else{
			grunt.fatal('Add all cshtml files to project or remove unused chstml files.');
		}
	});
}

Gruntfile.js

grunt.registerTask('check_frontend_files', function () {
  require('./tasks/check_frontend_files.js')(grunt);
});