Unity Asset Cleaner

在Unity项目中，我们习惯将所有的资源统称为Asset。Asset一般存放在Assets目录及其子目录。随着项目的研发进度，Asset数量也会爆发式地增长，资源管理面临很大的挑战。如何查找并区分有效和无效的资源，是很多项目管理者非常重视的事情。本文介绍的这个工具可以自动分析查找项目中未使用到的资源，在选择删除的时候还可以将这些文件打包备份，确保资源的安全性、提高项目管理的效率。

/**
	asset cleaner
	Copyright （c） 2015 Tatsuhiko Yamamura

    This software is released under the MIT License.
    http://opensource.org/licenses/mit-license.php
*/
using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using UnityEditor;
using System.IO;
using System.Text.Regularexpressions;

namespace AssetClean
{
	public class AssetCollector
	{
		public List deleteFileList = new List （）;
		ClassReferenceCollection classCollection = new ClassReferenceCollection （）;
		ShaderReferenceCollection shaderCollection = new ShaderReferenceCollection （）;

		public bool useCodeStrip = true;
		public bool saveEditorExtensions = true;

		public void Collection （）
		{
			try {
				deleteFileList.Clear （）;

				if（ useCodeStrip ）{
					classCollection.Collection （）;
				}
				shaderCollection.Collection （）;

				// Find assets
				var files = Directory.GetFiles （“Assets“ “*.*“ SearchOption.AllDirectories）
					.Where （item => Path.GetExtension （item） != “.meta“）
					.Where （item => Path.GetExtension （item） != “.js“）
					.Where （item => Path.GetExtension （item） != “.dll“）
					.Where （item => Regex.IsMatch （item “[\\/\\\\]Gizmos[\\/\\\\]“） == false）
					.Where （item => Regex.IsMatch （item “[\\/\\\\]Plugins[\\/\\\\]Android[\\/\\\\]“） == false）
					.Where （item => Regex.IsMatch （item “[\\/\\\\]Plugins[\\/\\\\]iOS[\\/\\\\]“） == false）
					.Where （item => Regex.IsMatch （item “[\\/\\\\]Resources[\\/\\\\]“） == false）;

				if（ useCodeStrip == false ）{
					files = files.Where（ item => Path.GetExtension（item） != “.cs“）;
				}

				foreach （var path in files） {
					var guid = AssetDatabase.AssetPathToGUID （path）;
					deleteFileList.Add （guid）;
				}
				EditorUtility.DisplayProgressBar （“checking“ “collection all files“ 0.2f）;
				UnregistReferenceFromResources（）;
				
				EditorUtility.DisplayProgressBar （“checking“ “check reference from resources“ 0.4f）;
				UnregistReferenceFromScenes（）;

				EditorUtility.DisplayProgressBar （“checking“ “check reference from scenes“ 0.6f）;
				if（ saveEditorExtensions ）{
					UnregistEditorCodes（）;
				}
			} finally {
				EditorUtility.ClearProgressBar （）;
			}
		}
		void UnregistReferenceFromResources（）
		{
			var resourcesFiles = Directory.GetFiles （“Assets“ “*.*“ SearchOption.AllDirectories）
				.Where （item => Regex.IsMatch （item “[\\/\\\\]Resources[\\/\\\\]“） == true）
					.Where （item => Path.GetExtension （item） != “.meta“）
					.ToArray （）;
			foreach （var path in AssetDatabase.GetDependencies （resourcesFiles）） {
				UnregistFromDelteList （AssetDatabase.AssetPathToGUID（path））;
			}
		}
		
		void UnregistReferenceFromScenes（）
		{
			// Exclude objects that reference from scenes.
			var scenes = EditorBuildSettings.scenes
				.Where （item => item.enabled == true）
					.Select （item => item.path）
					.ToArray （）;
			foreach （var path in AssetDatabase.GetDependencies （scenes）） {
				if（ saveEditorExtensions == false ）{
					Debug.Log（path）;
				}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

    .......       263  2015-07-26 22:42  Tool-UnityAssetCleaner-master\.gitignore

    .......      5013  2015-07-26 22:42  Tool-UnityAssetCleaner-master\Assets\Cleaner\Editor\AssetCollector.cs

    .......       262  2015-07-26 22:42  Tool-UnityAssetCleaner-master\Assets\Cleaner\Editor\AssetCollector.cs.meta

    .......      6320  2015-07-26 22:42  Tool-UnityAssetCleaner-master\Assets\Cleaner\Editor\ClassReferenceCollection.cs

    .......       262  2015-07-26 22:42  Tool-UnityAssetCleaner-master\Assets\Cleaner\Editor\ClassReferenceCollection.cs.meta

    .......      4751  2015-07-26 22:42  Tool-UnityAssetCleaner-master\Assets\Cleaner\Editor\FindUnusedAssets.cs

    .......       262  2015-07-26 22:42  Tool-UnityAssetCleaner-master\Assets\Cleaner\Editor\FindUnusedAssets.cs.meta

    .......      2307  2015-07-26 22:42  Tool-UnityAssetCleaner-master\Assets\Cleaner\Editor\ShaderReferenceCollection.cs

    .......       262  2015-07-26 22:42  Tool-UnityAssetCleaner-master\Assets\Cleaner\Editor\ShaderReferenceCollection.cs.meta

    .......       192  2015-07-26 22:42  Tool-UnityAssetCleaner-master\Assets\Cleaner\Editor.meta

    .......       192  2015-07-26 22:42  Tool-UnityAssetCleaner-master\Assets\Cleaner.meta

    .......      1086  2015-07-26 22:42  Tool-UnityAssetCleaner-master\LICENSE

    .......      4136  2015-07-26 22:42  Tool-UnityAssetCleaner-master\ProjectSettings\AudioManager.asset

    .......      4276  2015-07-26 22:42  Tool-UnityAssetCleaner-master\ProjectSettings\DynamicsManager.asset

    .......      4104  2015-07-26 22:42  Tool-UnityAssetCleaner-master\ProjectSettings\EditorBuildSettings.asset

    .......      4188  2015-07-26 22:42  Tool-UnityAssetCleaner-master\ProjectSettings\EditorSettings.asset

    .......      4228  2015-07-26 22:42  Tool-UnityAssetCleaner-master\ProjectSettings\GraphicsSettings.asset

    .......      5520  2015-07-26 22:42  Tool-UnityAssetCleaner-master\ProjectSettings\InputManager.asset

    .......      4384  2015-07-26 22:42  Tool-UnityAssetCleaner-master\ProjectSettings\NavMeshAreas.asset

    .......      4112  2015-07-26 22:42  Tool-UnityAssetCleaner-master\ProjectSettings\NetworkManager.asset

    .......      4308  2015-07-26 22:42  Tool-UnityAssetCleaner-master\ProjectSettings\Physics2DSettings.asset

    .......     35901  2015-07-26 22:42  Tool-UnityAssetCleaner-master\ProjectSettings\ProjectSettings.asset

    .......        52  2015-07-26 22:42  Tool-UnityAssetCleaner-master\ProjectSettings\ProjectVersion.txt

    .......      4944  2015-07-26 22:42  Tool-UnityAssetCleaner-master\ProjectSettings\QualitySettings.asset

    .......      4236  2015-07-26 22:42  Tool-UnityAssetCleaner-master\ProjectSettings\TagManager.asset

    .......      4112  2015-07-26 22:42  Tool-UnityAssetCleaner-master\ProjectSettings\TimeManager.asset

    .......        20  2015-07-26 22:42  Tool-UnityAssetCleaner-master\README.md

     目录          0  2015-07-26 22:42  Tool-UnityAssetCleaner-master\Assets\Cleaner\Editor

     目录          0  2015-07-26 22:42  Tool-UnityAssetCleaner-master\Assets\Cleaner

     目录          0  2015-07-26 22:42  Tool-UnityAssetCleaner-master\Assets

............此处省略5个文件信息