101 lines
5.8 KiB
C#
101 lines
5.8 KiB
C#
using System.IO;
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using UnityEditor.Build.Content;
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using UnityEditor.Build.Pipeline.Interfaces;
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using UnityEngine;
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using UnityEngine.Build.Pipeline;
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namespace UnityEditor.Build.Pipeline
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{
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#if UNITY_2018_3_OR_NEWER
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using BuildCompression = UnityEngine.BuildCompression;
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#else
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using BuildCompression = UnityEditor.Build.Content.BuildCompression;
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#endif
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/// <summary>
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/// Static class exposing convenient methods that match the BuildPipeline <seealso cref="BuildPipeline.BuildAssetBundles"/> method, suitable
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/// for porting existing projects to the Scriptable Build Pipeline quickly.
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/// New projects could consider calling <see cref="ContentPipeline.BuildAssetBundles"/> directly.
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/// </summary>
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public static class CompatibilityBuildPipeline
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{
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/// <summary>
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/// Wrapper API to match BuildPipeline API but use the Scriptable Build Pipeline to build Asset Bundles.
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/// <seealso cref="BuildPipeline.BuildAssetBundles(string, BuildAssetBundleOptions, BuildTarget)"/>
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/// </summary>
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/// <remarks>
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/// Not all BuildAssetBundleOptions are supported in the Scriptable Build Pipeline.
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/// Supported options are: ForceRebuildAssetBundle, AppendHashToAssetBundleName, ChunkBasedCompression, UncompressedAssetBundle, and DisableWriteTypeTree.
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/// In addition, existing BuildPipeline callbacks are not yet supported.
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/// </remarks>
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/// <param name="outputPath">Output path for the AssetBundles.</param>
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/// <param name="assetBundleOptions">AssetBundle building options.</param>
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/// <param name="targetPlatform">Chosen target build platform.</param>
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/// <returns>CompatibilityAssetBundleManifest object exposing information about the generated asset bundles.</returns>
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public static CompatibilityAssetBundleManifest BuildAssetBundles(string outputPath, BuildAssetBundleOptions assetBundleOptions, BuildTarget targetPlatform)
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{
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// Retrieve the AssetBundle definitions as defined through the Inspector and saved in the AssetDatabase
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var buildInput = ContentBuildInterface.GenerateAssetBundleBuilds();
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return BuildAssetBundles_Internal(outputPath, new BundleBuildContent(buildInput), assetBundleOptions, targetPlatform);
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}
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/// <summary>
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/// Wrapper API to match BuildPipeline API but use the Scriptable Build Pipeline to build Asset Bundles.
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/// <seealso cref="BuildPipeline.BuildAssetBundles(string, AssetBundleBuild[], BuildAssetBundleOptions, BuildTarget)"/>
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/// </summary>
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/// <remarks>
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/// Not all BuildAssetBundleOptions are supported in the Scriptable Build Pipeline.
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/// Supported options are: ForceRebuildAssetBundle, AppendHashToAssetBundleName, ChunkBasedCompression, UncompressedAssetBundle, and DisableWriteTypeTree.
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/// In addition, existing BuildPipeline callbacks are not yet supported.
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/// </remarks>
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/// <param name="outputPath">Output path for the AssetBundles.</param>
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/// <param name="builds">AssetBundle building map.</param>
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/// <param name="assetBundleOptions">AssetBundle building options.</param>
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/// <param name="targetPlatform">Chosen target build platform.</param>
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/// <returns>CompatibilityAssetBundleManifest object exposing information about the generated asset bundles.</returns>
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public static CompatibilityAssetBundleManifest BuildAssetBundles(string outputPath, AssetBundleBuild[] builds, BuildAssetBundleOptions assetBundleOptions, BuildTarget targetPlatform)
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{
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return BuildAssetBundles_Internal(outputPath, new BundleBuildContent(builds), assetBundleOptions, targetPlatform);
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}
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internal static CompatibilityAssetBundleManifest BuildAssetBundles_Internal(string outputPath, IBundleBuildContent content, BuildAssetBundleOptions options, BuildTarget targetPlatform)
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{
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var group = BuildPipeline.GetBuildTargetGroup(targetPlatform);
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var parameters = new BundleBuildParameters(targetPlatform, group, outputPath);
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if ((options & BuildAssetBundleOptions.ForceRebuildAssetBundle) != 0)
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parameters.UseCache = false;
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if ((options & BuildAssetBundleOptions.AppendHashToAssetBundleName) != 0)
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parameters.AppendHash = true;
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#if UNITY_2018_3_OR_NEWER
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if ((options & BuildAssetBundleOptions.ChunkBasedCompression) != 0)
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parameters.BundleCompression = BuildCompression.LZ4;
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else if ((options & BuildAssetBundleOptions.UncompressedAssetBundle) != 0)
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parameters.BundleCompression = BuildCompression.Uncompressed;
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else
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parameters.BundleCompression = BuildCompression.LZMA;
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#else
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if ((options & BuildAssetBundleOptions.ChunkBasedCompression) != 0)
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parameters.BundleCompression = BuildCompression.DefaultLZ4;
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else if ((options & BuildAssetBundleOptions.UncompressedAssetBundle) != 0)
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parameters.BundleCompression = BuildCompression.DefaultUncompressed;
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else
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parameters.BundleCompression = BuildCompression.DefaultLZMA;
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#endif
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if ((options & BuildAssetBundleOptions.DisableWriteTypeTree) != 0)
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parameters.ContentBuildFlags |= ContentBuildFlags.DisableWriteTypeTree;
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IBundleBuildResults results;
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ReturnCode exitCode = ContentPipeline.BuildAssetBundles(parameters, content, out results);
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if (exitCode < ReturnCode.Success)
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return null;
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var manifest = ScriptableObject.CreateInstance<CompatibilityAssetBundleManifest>();
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manifest.SetResults(results.BundleInfos);
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File.WriteAllText(parameters.GetOutputFilePathForIdentifier(Path.GetFileName(outputPath) + ".manifest"), manifest.ToString());
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return manifest;
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}
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}
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}
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