modified replace by hash feature

Author: MichaelO

CHANGELOG.md

@@ -1,5 +1,8 @@
 # Changelog (unofficial)
 
+## [1.6.1] - 2022-10-06
+- Modified ReplaceByHash feature load manifest from build folder to replace, not use append hash to bundle name to replace.
+
 ## [1.6.0] - 2022-10-05
 - Added WithoutManifest feature for build advenced settings.
 - Added ReplaceByHash feature for build advenced settings.

Editor/AssetBundleBuildTab.cs

@@ -3,9 +3,7 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Runtime.Serialization.Formatters.Binary;
-
 using AssetBundleBrowser.AssetBundleDataSource;
-using System.Linq;
 
 namespace AssetBundleBrowser
 {
@@ -182,7 +180,7 @@ internal void OnEnable(EditorWindow parent)
 
             m_TargetContent = new GUIContent("Build Target", "Choose target platform to build for.");
             m_CompressionContent = new GUIContent("Compression", "Choose no compress, standard (LZMA), or chunk based (LZ4)");
-            m_BundleNameContent = new GUIContent("Bundle Name", "Choose none, append hash, or replace by hash (Including manifest)");
+            m_BundleNameContent = new GUIContent("Bundle Name", "Choose none, append hash, or replace by hash");
 
             if (m_UserData.m_UseDefaultPath)
             {
@@ -396,10 +394,7 @@ private void ExecuteBuild()
                 if (m_UserData.m_BundleNameOption == BundleNameOptions.AppendHash)
                     opt |= BuildAssetBundleOptions.AppendHashToAssetBundleName;
                 else if (m_UserData.m_BundleNameOption == BundleNameOptions.ReplaceByHash)
-                {
-                    opt |= BuildAssetBundleOptions.AppendHashToAssetBundleName;
                     replaceByHash = true;
-                }
 
                 // toggle options
                 foreach (var tog in m_ToggleData)
@@ -494,73 +489,64 @@ private void ResetPathToDefault()
         /// Remove manifest file from build folder
         /// </summary>
         /// <param name="outputDirectory"></param>
-        internal static void WithoutManifestFile(string outputDirectory)
+        internal static bool WithoutManifestFile(string outputDirectory)
         {
             // filter only extension is manifest
             string[] files = Directory.GetFiles(outputDirectory, "*.manifest", SearchOption.AllDirectories);
             foreach (string file in files)
             {
                 if (File.Exists(file)) File.Delete(file);
             }
+
+            return true;
         }
 
         /// <summary>
-        /// Repace bundle name by hash (keep hash)
+        /// Repace bundle name by hash (read hash from manifest to replace)
         /// </summary>
         /// <param name="outputDirectory"></param>
-        internal static void ReplaceBundleNameByHash(string outputDirectory)
+        internal static bool ReplaceBundleNameByHash(string outputDirectory)
         {
-            // set replacement map for manifest file to replace hash
-            Dictionary<string, string> dictReplacement = new Dictionary<string, string>();
+            // outputDirectory last path name = manifestName
+            var firstIdx = outputDirectory.LastIndexOf("\\") == -1 ? outputDirectory.LastIndexOf("/") : outputDirectory.LastIndexOf("\\");
+            string manifestName = outputDirectory.Substring(firstIdx + 1, outputDirectory.Length - firstIdx - 1);
+
+            string manifestFullPath = string.Empty;
 
-            // get all file
+            // search from all file to find menifest
             string[] files = Directory.GetFiles(outputDirectory, "*.*", SearchOption.AllDirectories);
             foreach (var file in files)
             {
-                // get fileName without extension
-                string fileName = Path.GetFileNameWithoutExtension(file);
-
-                // Hash128 = 16 bytes (hex str => 0xFF = 1 bytes = 1 set, 16 * 2 = 32)
-                int hashSize = 32;
-
-                // append hash has _
-                var lastIdx = file.LastIndexOf("_");
-                // path \ for win, / for mac, linux 
-                var firstIdx = (file.LastIndexOf("\\") == -1 ? file.LastIndexOf("/") : file.LastIndexOf("\\"));
-
-                // fileName.Length > hashSize = including hash code
-                if (lastIdx != -1 && firstIdx != -1 && fileName.Length > hashSize)
+                if (file.IndexOf(manifestName) != -1)
                 {
-                    string originFileName = file.Substring(firstIdx + 1, lastIdx - firstIdx - 1);
-                    string hash = file.Substring(firstIdx + 2 + originFileName.Length, hashSize);
-
-                    // set pair
-                    dictReplacement.Add(originFileName, hash);
-
-                    // replace origin file name to empty (only keep hash code)
-                    string newFile = file.Replace($"{originFileName}_", string.Empty);
-
-                    // rename it
-                    if (File.Exists(file)) File.Move(file, newFile);
+                    manifestFullPath = Path.GetFullPath(file);
+                    break;
                 }
             }
 
-            // get all manifest file
-            string[] manifestFiles = Directory.GetFiles(outputDirectory, "*.manifest", SearchOption.AllDirectories);
-            foreach (string file in manifestFiles)
+            // file stream to read manifest
+            var fs = new FileStream(manifestFullPath, FileMode.Open, FileAccess.Read, FileShare.None);
+            var bundle = AssetBundle.LoadFromStream(fs);
+            fs.Dispose();
+
+            // load manifest asset
+            AssetBundleManifest manifest = bundle.LoadAsset<AssetBundleManifest>("AssetBundleManifest");
+
+            // replace all bundle file name by hash
+            foreach (var file in files)
             {
-                foreach (var pair in dictReplacement)
-                {
-                    string originFileName = pair.Key;
-                    string hash = pair.Value;
+                string bundleName = file.Replace(outputDirectory, string.Empty);
+                bundleName = bundleName.Substring(1, bundleName.Length - 1);
+                // skip process manifest & .manifest extension
+                if (bundleName.IndexOf(manifestName) != -1 || file.IndexOf(".manifest") != -1) continue;
 
-                    if (file.IndexOf(originFileName) != -1)
-                    {
-                        string newFile = file.Replace(originFileName, hash);
-                        if (File.Exists(file)) File.Move(file, newFile);
-                    }
-                }
+                string fileName = Path.GetFileNameWithoutExtension(file);
+                string hash = manifest.GetAssetBundleHash(bundleName).ToString();
+                string newFile = file.Replace(fileName, hash);
+                if (File.Exists(file)) File.Move(file, newFile);
             }
+
+            return true;
         }
 
         //Note: this is the provided BuildTarget enum with some entries removed as they are invalid in the dropdown

Editor/BundleBuildMap.cs

@@ -547,19 +547,28 @@ public static bool BuildAssetBundles(string outputDirectory, AssetBundleBuild[]
         {
             if (!Directory.Exists(outputDirectory)) Directory.CreateDirectory(outputDirectory);
 
-            // set option first
-            if (replaceByHash) options |= BuildAssetBundleOptions.AppendHashToAssetBundleName;
-
             var buildManifest = BuildPipeline.BuildAssetBundles(outputDirectory, buildMap, options, buildTarget);
             if (buildManifest == null)
             {
                 Debug.Log("Error in build");
                 return false;
             }
 
-            // after build
-            if (withoutManifest) AssetBundleBuildTab.WithoutManifestFile(outputDirectory);
-            if (replaceByHash) AssetBundleBuildTab.ReplaceBundleNameByHash(outputDirectory);
+            // after build (without manifest)
+            if (withoutManifest)
+            {
+                bool completes = AssetBundleBuildTab.WithoutManifestFile(outputDirectory);
+                if (!completes) Debug.Log("Error in process remove manifest.");
+                else Debug.Log($"<color=#60ffb0>Remove all manifest file completes.</color>");
+            }
+
+            // after build (replace by hash)
+            if (replaceByHash)
+            {
+                bool completes = AssetBundleBuildTab.ReplaceBundleNameByHash(outputDirectory);
+                if (!completes) Debug.Log("Error in process replace by hash.");
+                else Debug.Log($"<color=#60ffb0>Replace all bundle name by hash completes.</color>");
+            }
 
             if (onBuild != null)
             {

README.md

@@ -54,21 +54,22 @@ When enabled sync feature can sync asset data to other BuildMap <font color=#005
         return;
     }
 	
-    // outPath
-    string fullBundleOutPath = Path.Combine(Application.dataPath, $"../AssetBundles/MyBundle");
+    // output path
+    string outputDirectory = Path.Combine(Application.dataPath, $"../AssetBundles/MyBundle");
 	
     // platform
     BuildTarget target = BuildTarget.StandaloneWindows;
 	
     // LZ4
     BuildAssetBundleOptions bundleOptions = BuildAssetBundleOptions.ChunkBasedCompression;
     
-    BundleBuildMap.BuildAssetBundles(fullBundleOutPath, bundleBuildMap.GetBuildMap(), bundleOptions, target, null);
+	// regular
+    BundleBuildMap.BuildAssetBundles(outputDirectory, bundleBuildMap.GetBuildMap(), bundleOptions, target, null);
     
     // including withoutManifest and replaceByHash params
     bool withoutManifest = true;
     bool replaceByHash = true;
-    BundleBuildMap.BuildAssetBundles(fullBundleOutPath, bundleBuildMap.GetBuildMap(), bundleOptions, target, withoutManifest, replaceByHash, null);
+    BundleBuildMap.BuildAssetBundles(outputDirectory, bundleBuildMap.GetBuildMap(), bundleOptions, target, withoutManifest, replaceByHash, null);
 ```
 
 ### Extension Advenced Settings

package.json

@@ -2,7 +2,7 @@
 {
 	"name": "com.unity.assetbundlebrowser.plus",
 	"displayName": "Asset Bundle Browser Plus",
-	"version": "1.6.0",
+	"version": "1.6.1",
 	"unity": "2018.1",
 	"description": "The Asset Bundle Browser tool enables the user to view and edit the configuration of asset bundles for their Unity project. It will block editing that would create invalid bundles, and inform you of any issues with existing bundles. It also provides basic build functionality.\n\nUse this tool as an alternative to selecting assets and setting their asset bundle manually in the inspector. It can be dropped into any Unity project with a version of 5.6 or greater. It will create a new menu item in Window > AssetBundle Browser. The bundle configuration, build functionality, and built-bundle inspection are split into three tabs within the new window.",
 	"keywords": ["asset", "bundle", "bundles", "assetbundles"],