/**
 * this is just for the release.
 */
'use strict';

var gulp 		 = require('gulp');
var bump 		 = require('gulp-bump');
var gulpReplace  = require('gulp-replace');
var argv 		 = require('yargs').argv;
var shell        = require('gulp-shell');
var runSequence  = require('run-sequence');

gulp.task('release' , function(cb)
{
 	runSequence('git:pull',
 				// 'build',
 				'bump:msg',
 				cb);
});

gulp.task('git:pull' , shell.task([
 	"git checkout gh-pages",
 	"git pull origin gh-pages"
]));

gulp.task('git:commit' , function()
{
	var extraComment = argv.comment || '';
 	return gulp.src('./package.json', {read: true})
 			   .pipe(shell([
 				   "git add .",
 				   "git commit -am 'release version: <%= getVersion(file) %> " + extraComment + "'",
 				   "git push origin gh-pages",
 				   "git checkout master",
 				   "git pull origin gh-pages",
 				   "git tag v<%= getVersion(file) %>",
 				   "git push origin master --tags",
 				   "git checkout gh-pages"
 			   ],{
 				   templateData: {
 					   getVersion: function(s)
 					   {
 						   var b = s.contents.toString('utf-8');
 						   var json = JSON.parse(b);
 						   return json.version;
 					   }
 				   }
 			   }));
});

gulp.task('bump:msg' , function(cb)
{
 	runSequence('bump',
 				'git:commit',
 				cb);
});


gulp.task('bump' , function()
{
 	return gulp.src(
 		'./package.json'
 	).pipe(
 		bump()
 	).pipe(gulp.dest('./'));
});