/
DependencyContextExtensions.cs
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/
DependencyContextExtensions.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
namespace Microsoft.Extensions.DependencyModel
{
public static class DependencyContextExtensions
{
private const string NativeImageSufix = ".ni";
public static IEnumerable<string> GetDefaultNativeAssets(this DependencyContext self)
{
ThrowHelper.ThrowIfNull(self);
return LinqHelpers.SelectMany(self.RuntimeLibraries, static (library, context) => library.GetDefaultNativeAssets(context), self);
}
public static IEnumerable<RuntimeFile> GetDefaultNativeRuntimeFileAssets(this DependencyContext self)
{
ThrowHelper.ThrowIfNull(self);
return LinqHelpers.SelectMany(self.RuntimeLibraries, static (library, context) => library.GetDefaultNativeRuntimeFileAssets(context), self);
}
public static IEnumerable<string> GetRuntimeNativeAssets(this DependencyContext self, string runtimeIdentifier)
{
ThrowHelper.ThrowIfNull(self);
ThrowHelper.ThrowIfNull(runtimeIdentifier);
return LinqHelpers.SelectMany(self.RuntimeLibraries, static (library, context, id) => library.GetRuntimeNativeAssets(context, id), self, runtimeIdentifier);
}
public static IEnumerable<RuntimeFile> GetRuntimeNativeRuntimeFileAssets(this DependencyContext self, string runtimeIdentifier)
{
ThrowHelper.ThrowIfNull(self);
ThrowHelper.ThrowIfNull(runtimeIdentifier);
return LinqHelpers.SelectMany(self.RuntimeLibraries, static (library, context, id) => library.GetRuntimeNativeRuntimeFileAssets(context, id), self, runtimeIdentifier);
}
public static IEnumerable<string> GetDefaultNativeAssets(this RuntimeLibrary self, DependencyContext context)
{
ThrowHelper.ThrowIfNull(self);
return ResolveAssets(context, string.Empty, self.NativeLibraryGroups);
}
public static IEnumerable<RuntimeFile> GetDefaultNativeRuntimeFileAssets(this RuntimeLibrary self, DependencyContext context)
{
ThrowHelper.ThrowIfNull(self);
return ResolveRuntimeFiles(context, string.Empty, self.NativeLibraryGroups);
}
public static IEnumerable<string> GetRuntimeNativeAssets(this RuntimeLibrary self, DependencyContext context, string runtimeIdentifier)
{
ThrowHelper.ThrowIfNull(self);
ThrowHelper.ThrowIfNull(context);
ThrowHelper.ThrowIfNull(runtimeIdentifier);
return ResolveAssets(context, runtimeIdentifier, self.NativeLibraryGroups);
}
public static IEnumerable<RuntimeFile> GetRuntimeNativeRuntimeFileAssets(this RuntimeLibrary self, DependencyContext context, string runtimeIdentifier)
{
ThrowHelper.ThrowIfNull(self);
ThrowHelper.ThrowIfNull(context);
ThrowHelper.ThrowIfNull(runtimeIdentifier);
return ResolveRuntimeFiles(context, runtimeIdentifier, self.NativeLibraryGroups);
}
public static IEnumerable<AssemblyName> GetDefaultAssemblyNames(this DependencyContext self)
{
ThrowHelper.ThrowIfNull(self);
return LinqHelpers.SelectMany(self.RuntimeLibraries, static (library, context) => library.GetDefaultAssemblyNames(context), self);
}
public static IEnumerable<AssemblyName> GetRuntimeAssemblyNames(this DependencyContext self, string runtimeIdentifier)
{
ThrowHelper.ThrowIfNull(self);
ThrowHelper.ThrowIfNull(runtimeIdentifier);
return LinqHelpers.SelectMany(self.RuntimeLibraries, static (library, context, id) => library.GetRuntimeAssemblyNames(context, id), self, runtimeIdentifier);
}
public static IEnumerable<AssemblyName> GetDefaultAssemblyNames(this RuntimeLibrary self, DependencyContext context)
{
ThrowHelper.ThrowIfNull(self);
ThrowHelper.ThrowIfNull(context);
return ResolveAssets(context, string.Empty, self.RuntimeAssemblyGroups).Select(GetAssemblyName);
}
public static IEnumerable<AssemblyName> GetRuntimeAssemblyNames(this RuntimeLibrary self, DependencyContext context, string runtimeIdentifier)
{
ThrowHelper.ThrowIfNull(self);
ThrowHelper.ThrowIfNull(context);
ThrowHelper.ThrowIfNull(runtimeIdentifier);
return ResolveAssets(context, runtimeIdentifier, self.RuntimeAssemblyGroups).Select(GetAssemblyName);
}
private static AssemblyName GetAssemblyName(string assetPath)
{
string name = Path.GetFileNameWithoutExtension(assetPath);
if (name == null)
{
throw new ArgumentException($"Provided path has empty file name '{assetPath}'", nameof(assetPath));
}
if (name.EndsWith(NativeImageSufix))
{
name = name.Substring(0, name.Length - NativeImageSufix.Length);
}
return new AssemblyName(name);
}
private static IEnumerable<string> ResolveAssets(
DependencyContext context,
string runtimeIdentifier,
IEnumerable<RuntimeAssetGroup> assets)
{
RuntimeFallbacks? fallbacks = context.RuntimeGraph.FirstOrDefault(f => f.Runtime == runtimeIdentifier);
IEnumerable<string?> rids = Enumerable.Concat(new[] { runtimeIdentifier }, fallbacks?.Fallbacks ?? Enumerable.Empty<string?>());
return SelectAssets(rids, assets);
}
private static IEnumerable<RuntimeFile> ResolveRuntimeFiles(
DependencyContext context,
string runtimeIdentifier,
IEnumerable<RuntimeAssetGroup> assets)
{
RuntimeFallbacks? fallbacks = context.RuntimeGraph.FirstOrDefault(f => f.Runtime == runtimeIdentifier);
IEnumerable<string?> rids = Enumerable.Concat(new[] { runtimeIdentifier }, fallbacks?.Fallbacks ?? Enumerable.Empty<string?>());
return SelectRuntimeFiles(rids, assets);
}
private static IEnumerable<string> SelectAssets(IEnumerable<string?> rids, IEnumerable<RuntimeAssetGroup> groups)
{
foreach (string? rid in rids)
{
RuntimeAssetGroup? group = groups.FirstOrDefault(g => g.Runtime == rid);
if (group != null)
{
return group.AssetPaths;
}
}
// Return the RID-agnostic group
return groups.GetDefaultAssets();
}
private static IEnumerable<RuntimeFile> SelectRuntimeFiles(IEnumerable<string?> rids, IEnumerable<RuntimeAssetGroup> groups)
{
foreach (string? rid in rids)
{
RuntimeAssetGroup? group = groups.FirstOrDefault(g => g.Runtime == rid);
if (group != null)
{
return group.RuntimeFiles;
}
}
// Return the RID-agnostic group
return groups.GetDefaultRuntimeFileAssets();
}
}
}