json.excel/tasks/json.excel.js

json to excel,or excel to json

'use strict';

var path=require('path');
var fs=require('fs');
var xlsx=require('node-xlsx');
var handing=require('../libs/handing');

exports=module.exports=function(grunt){
	grunt.registerMultiTask('go','json to excel,or excel to json',function(){
		var options=this.options({
            report:false
        });
		var json_file=options.json;
        var excel_file=options.excel;
        var to=options.to||'json';
        var formating=options.formating === undefined ? true : options.formating;
        
        if(!(json_file && excel_file)){
            
            return console.log('there must be json and excel file directory!');
        }
        
        json_file=path.normalize(json_file);
        excel_file=path.normalize(excel_file);
        
        if(to === 'excel'){
            
            var buffer=grunt.file.read(json_file);
            var jsonstring=buffer.toString('utf8',0,buffer.length);
            jsonstring=JSON.parse(jsonstring);
            
            jsonstring=handing.json2excel(jsonstring);
            
            var file=xlsx.build(jsonstring);
            
            return grunt.file.write(excel_file,file,'binary');
        }else{
            
            var obj=xlsx.parse(excel_file);
            obj=handing.excel2json(obj);
            if(formating){
                
                
                return grunt.file.write(json_file,JSON.stringify(obj, null, 4));
            }else{
                
                return grunt.file.write(json_file,JSON.stringify(obj));
            }
        }
    });
};