grunt完整的配置demo

 const path = require('path')
 const fs = require('fs');
 module.exports = function (grunt) {
   grunt.registerTask('setapi', 'setapi..', function (arg1, arg2) {
     var RouteMapLibPath = './dest/limsStyle/RouteMapLib-1.1.js';
     var data = fs.readFileSync('./dest/limsStyle/config.json');
     var RouteMapLib = fs.readFileSync(RouteMapLibPath).toString();
     data = JSON.parse(data);
     if (typeof arg1 != 'undefined') {
       switch (arg1) {
         case 'dev': {
           replaceConfig(data.devconfig)
         }; break;
         case 'test': {
           replaceConfig(data.testconfig)
         }; break;
         case 'build': {
           replaceConfig(data.buildconfig)
         }; break;
       }
     }
     else {
       replaceConfig(data.location)
     }
     fs.writeFileSync(RouteMapLibPath, RouteMapLib);

     function replaceConfig(d) {
       RouteMapLib = RouteMapLib.replace('{#ajaxUrl}', d.ajaxUrl);
       RouteMapLib = RouteMapLib.replace('{#user_token}', d.user_token);
       RouteMapLib = RouteMapLib.replace('{#ELNEdit}', d.ELNEdit);
       // console.log(RouteMapLib);
     };

   });

   grunt.initConfig({
     clean: ['/dest'],
     jshint: {
       files: ['limsStyle/postil.js'],
       options: {
         globals: {
           jQuery: true
         }
       }
     },
     watch: {
       cwd: 'src',
       files: ['src/**/*.js', 'src/**/*.json', 'src/**/*.html', 'src/limsStyle/*.css', 'src/**/*.less'],
       tasks: ['copy:main', 'setapi', 'jshint', 'babel'],
       options: {
         reload: true,
         livereload: 35729
       }
     }
     ,
     uglify: {
       main: {
         src: '',
         dest: ''
       },
     },
     copy: {
       processContentExclude: ['othen/**'],
       main: {
         expand: true,
         cwd: 'src',
         //src: ['**', '!*.sln', '!**lib/diff/**', '!**lib/layer-v3.1.1/**', '!**lib/layerdate/**', '!**.vs/**', '!**lib/bootstrap-3.3.7-dist/**', '!**lib/ueditor1_4_3-utf8-net/third-party/**', '!**lib/ueditor1_4_3-utf8-net/third-party/dialogs/**'], //**
         src: ['limsStyle/**', 'othen/**', '_temp/**', 'images/**', 'layertemplate/**', 'ElnIndex.html'],
         dest: 'dest/',
         flatten: false,
         filter: 'isFile'
       },
       all: {
         expand: true,
         cwd: 'src',
         src: ['**'], //**
         dest: 'dest/',
         flatten: false,
         filter: 'isFile'
       }
     }
     , babel: {
       options: {
         sourceMap: true,
         presets: ['babel-preset-es2015']

       },
       dist: {
         files: [{
           expand: true,
           cwd: 'src/',
           src: ['limsStyle/postil.js'],
           dest: 'dest/'
         }]
       }
     },
     connect: {
       options: {
         port: 9000,
         hostname: 'localhost',
         livereload: 35729
       },
       server: {
         options: {
           open: true,
           base: [
             "dest"
           ]
         }
       }
     },
   });

   grunt.loadNpmTasks('grunt-contrib-uglify');
   grunt.loadNpmTasks('grunt-contrib-jshint');
   grunt.loadNpmTasks('grunt-contrib-copy');
   grunt.loadNpmTasks('grunt-contrib-clean');
   grunt.loadNpmTasks('grunt-contrib-watch');
   grunt.loadNpmTasks('grunt-contrib-connect');
   grunt.loadNpmTasks('grunt-babel');
   // grunt.registerTask('clean', ['clean:release', 'copy:all']);

   grunt.registerTask('default', ['copy:main', 'babel', 'setapi', 'connect', 'watch']);
   grunt.registerTask('dev', ['copy:main', 'babel', 'setapi:dev'])
   grunt.registerTask('test', ['copy:all', 'babel', 'setapi:test']);
   grunt.registerTask('build', ['copy:all', 'babel', 'setapi:build']);

 };