zhilehuo-gulp-markedfile-fliter/index.js

select files which have special mark

'use strict';
var through = require('through2');
var gutil = require('gulp-util');
var chalk = require('chalk');
var PluginError = gutil.PluginError;
// 常量
const PLUGIN_NAME = 'gulp-filterfile';

function filterfile(search,type,deleteMarkAfterSelect){   //deleteMarkAfterSelect 处理完后是否删除或替换该标记
	var type = type||"regex";
	var selectedFileCount = 0;
 var stream = through.obj(function(file, enc, cb) {
 if (file.isStream()) {
 this.emit('error', new PluginError(PLUGIN_NAME, 'Streams are not supported!'));
 return callback();
 }
 if (file.isBuffer()) {
 	if(type == "text"){
		 if(String(file.contents).indexOf(search) > 0){
		 	// 确保文件进入下一个 gulp 插件
			selectedFileCount++;		
			if(deleteMarkAfterSelect)
				file.contents = new Buffer(String(file.contents).replace(search,deleteMarkAfterSelect));
		 	this.push(file);
		}
	}
	if(type == 'regex')
	{
		var reg = new RegExp(search+"( +status:(\\d) time:[0-9: -]{19} ){0,1}", "g"); //status  没有代表没处理过 1代表处理过了 0代表还需要处理 
		if(String(file.contents).match(reg)){
			var status = reg.exec(String(file.contents))[2];
			if(!status || status == 0)
			{
				file.contents = new Buffer(String(file.contents).replace(reg,search+" status:1 time:"+getNowDate()+" "));
				selectedFileCount++;
				this.push(file);
			}
		}
	}
 }
 // 告诉 stream 引擎，我们已经处理完了这个文件
 cb();
 })
 //console.log('\tselected ' + chalk.green(selectedFileCount) + ' files totally');
 return stream;
};

function getNowDate() {
	 var date = new Date();
	 var sign1 = "-";
	 var sign2 = ":";
	 var year = date.getFullYear() // 年
	 var month = date.getMonth() + 1; // 月
	 var day  = date.getDate(); // 日
	 var hour = date.getHours(); // 时
	 var minutes = date.getMinutes(); // 分
	 var seconds = date.getSeconds() //秒
	 // 给一位数数据前面加 “0”
	 if (month >= 1 && month <= 9) {
	  month = "0" + month;
	 }
	 if (day >= 0 && day <= 9) {
	  day = "0" + day;
	 }
	 if (hour >= 0 && hour <= 9) {
	  hour = "0" + hour;
	 }
	 if (minutes >= 0 && minutes <= 9) {
	  minutes = "0" + minutes;
	 }
	 if (seconds >= 0 && seconds <= 9) {
	  seconds = "0" + seconds;
	 }
	 var currentdate = year + sign1 + month + sign1 + day + " " + hour + sign2 + minutes + sign2 + seconds;
	 return currentdate;
}

module.exports = filterfile;