public void WhenCalculatingBundleHash_HashingBeginsAtFirstObject()
{
ArchiveAndCompressBundles.TaskInput input = GetDefaultInput();
WriteResult result = AddSimpleBundle(input, "mybundle", "internalName");
// Add a serialized. Say that the first object begins 100 bytes into the file
var osi = new ObjectSerializedInfo();
SerializedLocation header = new SerializedLocation();
header.SetFileName(result.resourceFiles[0].fileAlias);
header.SetOffset(100);
osi.SetHeader(header);
result.SetSerializedObjects(new ObjectSerializedInfo[] { osi });
ResourceFile rf = result.resourceFiles[0];
rf.SetSerializedFile(true);
result.SetResourceFiles(new ResourceFile[] { rf });
input.InternalFilenameToWriteResults["internalName"] = result;
string srcFile = input.InternalFilenameToWriteResults["internalName"].resourceFiles[0].fileName;
ArchiveAndCompressBundles.Run(input, out ArchiveAndCompressBundles.TaskOutput output);
// Change the first 100 bytes. This is before the serialized object.
WriteRandomData(srcFile, 100, 1);
ArchiveAndCompressBundles.Run(input, out ArchiveAndCompressBundles.TaskOutput output2);
// Change the first 104 bytes. This should affect the hash
WriteRandomData(srcFile, 104, 2);
ArchiveAndCompressBundles.Run(input, out ArchiveAndCompressBundles.TaskOutput output3);
Assert.AreEqual(output.BundleDetails["mybundle"].Hash, output2.BundleDetails["mybundle"].Hash);
Assert.AreNotEqual(output.BundleDetails["mybundle"].Hash, output3.BundleDetails["mybundle"].Hash);
}
// Create a populated 'ObjectSerializedInfo' instance. Can set fields directly for 2019.4+ as internals are available but have to use reflection for 2018.4
static ObjectSerializedInfo CreateObjectSerializedInfo(ObjectIdentifier serializedObject, SerializedLocation header, SerializedLocation rawData)
{
ObjectSerializedInfo objectSerializedInfo = new ObjectSerializedInfo();
#if UNITY_2019_4_OR_NEWER
objectSerializedInfo.m_SerializedObject = serializedObject;
objectSerializedInfo.m_Header = header;
objectSerializedInfo.m_RawData = rawData;
#else
SetFieldValue(objectSerializedInfo, "m_SerializedObject", serializedObject);
SetFieldValue(objectSerializedInfo, "m_Header", header);
SetFieldValue(objectSerializedInfo, "m_RawData", rawData);
#endif
return(objectSerializedInfo);
}
static WriteResult CreateSyntheticWriteResult(System.Random rnd)
{
ObjectSerializedInfo[] serializedObjects = new ObjectSerializedInfo[]
{
CreateObjectSerializedInfo(CreateObjectIdentifier(rnd), CreateSerializedLocation("Header_" + rnd.Next(), (uint)rnd.Next(), (uint)rnd.Next()), CreateSerializedLocation("RawData_" + rnd.Next(), (uint)rnd.Next(), (uint)rnd.Next())),
CreateObjectSerializedInfo(CreateObjectIdentifier(rnd), CreateSerializedLocation("Header_" + rnd.Next(), (uint)rnd.Next(), (uint)rnd.Next()), CreateSerializedLocation("RawData_" + rnd.Next(), (uint)rnd.Next(), (uint)rnd.Next()))
};
ResourceFile[] resourceFiles = new ResourceFile[]
{
CreateResourceFile("Filename_" + rnd.Next(), "FileAlias_" + rnd.Next(), ((rnd.Next() & 1) != 0)),
CreateResourceFile("Filename_" + rnd.Next(), "FileAlias_" + rnd.Next(), ((rnd.Next() & 1) != 0))
};
return(CreateWriteResult(serializedObjects, resourceFiles, new Type[] { typeof(ScriptableObject), typeof(Vector2) }, new String[] { "IncludedSerializeReferenceFQN_" + rnd.Next(), "IncludedSerializeReferenceFQN_" + rnd.Next() }));
}
static Dictionary <string, ulong> CalculateHashFileOffsets(TaskInput input)
{
Dictionary <string, ulong> fileOffsets = new Dictionary <string, ulong>();
foreach (var pair in input.InternalFilenameToWriteResults)
{
foreach (ResourceFile serializedFile in pair.Value.resourceFiles)
{
if (!serializedFile.serializedFile)
{
continue;
}
ObjectSerializedInfo firstObject = pair.Value.serializedObjects.First(x => x.header.fileName == serializedFile.fileAlias);
fileOffsets[serializedFile.fileName] = firstObject.header.offset;
}
}
return(fileOffsets);
}
public ReturnCode Run()
{
Dictionary <string, ulong> fileOffsets = new Dictionary <string, ulong>();
List <KeyValuePair <string, List <ResourceFile> > > bundleResources;
{
Dictionary <string, List <ResourceFile> > bundleToResources = new Dictionary <string, List <ResourceFile> >();
foreach (var pair in m_Results.WriteResults)
{
string bundle = m_WriteData.FileToBundle[pair.Key];
List <ResourceFile> resourceFiles;
bundleToResources.GetOrAdd(bundle, out resourceFiles);
resourceFiles.AddRange(pair.Value.resourceFiles);
foreach (ResourceFile serializedFile in pair.Value.resourceFiles)
{
if (!serializedFile.serializedFile)
{
continue;
}
ObjectSerializedInfo firstObject = pair.Value.serializedObjects.First(x => x.header.fileName == serializedFile.fileAlias);
fileOffsets[serializedFile.fileName] = firstObject.header.offset;
}
}
bundleResources = bundleToResources.ToList();
}
Dictionary <string, HashSet <string> > bundleDependencies = new Dictionary <string, HashSet <string> >();
foreach (var files in m_WriteData.AssetToFiles.Values)
{
if (files.IsNullOrEmpty())
{
continue;
}
string bundle = m_WriteData.FileToBundle[files.First()];
HashSet <string> dependencies;
bundleDependencies.GetOrAdd(bundle, out dependencies);
dependencies.UnionWith(files.Select(x => m_WriteData.FileToBundle[x]));
dependencies.Remove(bundle);
}
IList <CacheEntry> entries = bundleResources.Select(x => GetCacheEntry(x.Key, x.Value, m_Parameters.GetCompressionForIdentifier(x.Key))).ToList();
IList <CachedInfo> cachedInfo = null;
IList <CachedInfo> uncachedInfo = null;
if (m_Parameters.UseCache && m_Cache != null)
{
m_Cache.LoadCachedData(entries, out cachedInfo);
uncachedInfo = new List <CachedInfo>();
}
for (int i = 0; i < bundleResources.Count; i++)
{
string bundleName = bundleResources[i].Key;
ResourceFile[] resourceFiles = bundleResources[i].Value.ToArray();
BuildCompression compression = m_Parameters.GetCompressionForIdentifier(bundleName);
string writePath;
BundleDetails details;
if (cachedInfo != null && cachedInfo[i] != null)
{
if (!m_Tracker.UpdateInfoUnchecked(string.Format("{0} (Cached)", bundleName)))
{
return(ReturnCode.Canceled);
}
details = (BundleDetails)cachedInfo[i].Data[0];
details.FileName = string.Format("{0}/{1}", m_Parameters.OutputFolder, bundleName);
HashSet <string> dependencies;
if (bundleDependencies.TryGetValue(bundleName, out dependencies))
{
details.Dependencies = dependencies.ToArray();
}
else
{
details.Dependencies = new string[0];
}
writePath = string.Format("{0}/{1}", m_Cache.GetCachedArtifactsDirectory(entries[i]), bundleName);
}
else
{
if (!m_Tracker.UpdateInfoUnchecked(bundleName))
{
return(ReturnCode.Canceled);
}
details = new BundleDetails();
writePath = string.Format("{0}/{1}", m_Parameters.TempOutputFolder, bundleName);
if (m_Parameters.UseCache && m_Cache != null)
{
writePath = string.Format("{0}/{1}", m_Cache.GetCachedArtifactsDirectory(entries[i]), bundleName);
}
Directory.CreateDirectory(Path.GetDirectoryName(writePath));
details.FileName = string.Format("{0}/{1}", m_Parameters.OutputFolder, bundleName);
details.Crc = ContentBuildInterface.ArchiveAndCompress(resourceFiles, writePath, compression);
details.Hash = CalculateHashVersion(fileOffsets, resourceFiles);
HashSet <string> dependencies;
if (bundleDependencies.TryGetValue(bundleName, out dependencies))
{
details.Dependencies = dependencies.ToArray();
}
else
{
details.Dependencies = new string[0];
}
if (uncachedInfo != null)
{
uncachedInfo.Add(GetCachedInfo(m_Cache, entries[i], resourceFiles, details));
}
}
SetOutputInformation(writePath, details.FileName, bundleName, details);
}
if (m_Parameters.UseCache && m_Cache != null)
{
m_Cache.SaveCachedData(uncachedInfo);
}
return(ReturnCode.Success);
}