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WinGetAppDomain.cs (2442B)

      1 // -----------------------------------------------------------------------------
      2 // <copyright file="WinGetAppDomain.cs" company="Microsoft Corporation">
      3 //     Copyright (c) Microsoft Corporation. Licensed under the MIT License.
      4 // </copyright>
      5 // -----------------------------------------------------------------------------
      6 #if POWERSHELL_WINDOWS
      7 
      8 namespace Microsoft.WinGet.Client.Cmdlets.Resolver
      9 {
     10     using System;
     11     using System.IO;
     12     using System.Reflection;
     13     using System.Runtime.InteropServices;
     14 
     15     /// <summary>
     16     /// Resolver for assemblies.
     17     /// </summary>
     18     internal static class WinGetAppDomain
     19     {
     20         private static readonly string SharedDependencyPath;
     21         private static readonly string SharedArchDependencyPath;
     22         private static readonly string DirectDependencyPath;
     23 
     24         static WinGetAppDomain()
     25         {
     26             var self = typeof(WinGetAppDomain).Assembly;
     27             SharedDependencyPath = Path.Combine(
     28                 Path.GetDirectoryName(self.Location),
     29                 "SharedDependencies");
     30             SharedArchDependencyPath = Path.Combine(
     31                 SharedDependencyPath,
     32                 RuntimeInformation.ProcessArchitecture.ToString().ToLower());
     33             DirectDependencyPath = Path.Combine(
     34                 Path.GetDirectoryName(self.Location),
     35                 "DirectDependencies");
     36         }
     37 
     38         /// <summary>
     39         /// Handler to register in the AppDomain.
     40         /// </summary>
     41         /// <param name="source">Source.</param>
     42         /// <param name="args">Event args.</param>
     43         /// <returns>The assembly if found.</returns>
     44         public static Assembly Handler(object source, ResolveEventArgs args)
     45         {
     46             string name = $"{new AssemblyName(args.Name).Name}.dll";
     47             string path = Path.Combine(SharedDependencyPath, name);
     48             if (File.Exists(path))
     49             {
     50                 return Assembly.LoadFile(path);
     51             }
     52 
     53             path = Path.Combine(SharedArchDependencyPath, name);
     54             if (File.Exists(path))
     55             {
     56                 return Assembly.LoadFile(path);
     57             }
     58 
     59             path = Path.Combine(DirectDependencyPath, name);
     60             if (File.Exists(path))
     61             {
     62                 return Assembly.LoadFile(path);
     63             }
     64 
     65             return null;
     66         }
     67     }
     68 }
     69 #endif