Unity AssetBundle打包

using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEditor;
using UnityEditor.VersionControl;
using UnityEngine;

public class AssetBundleBuilder : Editor
{
    /// <summary>
    /// 资源打包路径
    /// </summary>
    private static string m_OutPath = Application.dataPath + "/BundleRes";
    /// <summary>
    /// 资源输出路径
    /// </summary>
    private static string m_PutPath = Application.streamingAssetsPath;

    [MenuItem("AssetBundle/Build")]
    static void BuildAssetBundle()
    {
        ClearAssetBundlesName();
        Pack(m_OutPath);
        string outPutPath = Path.Combine(m_PutPath,GetPlatformFolder(EditorUserBuildSettings.activeBuildTarget));
        if (!Directory.Exists(outPutPath))
        {
            Directory.CreateDirectory(outPutPath);
        }
        BuildPipeline.BuildAssetBundles(outPutPath,BuildAssetBundleOptions.None,EditorUserBuildSettings.activeBuildTarget);
        AssetDatabase.Refresh();
        Debug.Log("打包完成！！！！！");
    }
    /// <summary>
    /// 清除AssetBundleName
    /// </summary>
    private static void ClearAssetBundlesName()
    {
        //获取所有的AssetBundleName
        string[] str = AssetDatabase.GetAllAssetBundleNames();
        foreach (var names in str)
        {
            //移除掉BundleName
            AssetDatabase.RemoveAssetBundleName(names,true);
        }
        str = AssetDatabase.GetAllAssetBundleNames();
    }
    /// <summary>
    /// 拿到需要打包的文件
    /// </summary>
    private static void Pack(string path)
    {
        DirectoryInfo dire = new DirectoryInfo(path);
        FileSystemInfo[] files = dire.GetFileSystemInfos();
        for (int i = 0; i < files.Length; i++)
        {
            if(files[i] is DirectoryInfo)
            {
                Pack(files[i].FullName);
            }
            else
            {
                if (!files[i].Name.EndsWith(".meta"))
                {
                    SetAssetBundleName(files[i].FullName);
                }
            }
        }
    }
    /// <summary>
    /// 设置AssetBundleName
    /// </summary>
    private static void SetAssetBundleName(string source)
    {
        string _source = Replace(source);
        string _assetPath1 = "Assets" + _source.Substring(Application.dataPath.Length);
        string _assetPath2 = _source.Substring(Application.dataPath.Length + 1);
        AssetImporter assetImporter = AssetImporter.GetAtPath(_assetPath1);
        string assetName = _assetPath2.Substring(_assetPath2.IndexOf("/") + 1);
        assetName = assetName.Replace(Path.GetExtension(assetName),".unity3d");
        assetImporter.assetBundleName = assetName;
    }

    private static string Replace(string str)
    {
        return str.Replace(@"\\","/");
    }

    private static string GetPlatformFolder(BuildTarget target)
    {
        switch (target)
        {
            case BuildTarget.Android:
                return "Android";
            case BuildTarget.iOS:
                return "iOS";
            case BuildTarget.StandaloneWindows:
            case BuildTarget.StandaloneWindows64:
                return "Windows";
            case BuildTarget.StandaloneOSXIntel:
            case BuildTarget.StandaloneOSXIntel64:
                return "OSX";
            default:
                break;
        }
        return null;
    }

}