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ValidatePackage.cs
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ValidatePackage.cs
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// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
using System;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
using Microsoft.Build.Framework;
using Microsoft.NET.Build.Tasks;
#if NETCOREAPP
using System.Runtime.Loader;
#endif
namespace Microsoft.DotNet.Compatibility
{
public class ValidatePackage : TaskBase
{
[Required]
public string? PackageTargetPath { get; set; }
[Required]
public string? RoslynAssembliesPath { get; set; }
public string? RuntimeGraph { get; set; }
public string? NoWarn { get; set; }
public bool RunApiCompat { get; set; }
public bool EnableStrictModeForCompatibleTfms { get; set; }
public bool EnableStrictModeForCompatibleFrameworksInPackage { get; set; }
public string? BaselinePackageTargetPath { get; set; }
public bool DisablePackageBaselineValidation { get; set; }
public bool GenerateCompatibilitySuppressionFile { get; set; }
public string? CompatibilitySuppressionFilePath { get; set; }
public ITaskItem[]? ReferencePaths { get; set; }
public override bool Execute()
{
#if NETCOREAPP
AssemblyLoadContext currentContext = AssemblyLoadContext.GetLoadContext(Assembly.GetExecutingAssembly())!;
currentContext.Resolving += ResolverForRoslyn;
#else
AppDomain.CurrentDomain.AssemblyResolve += ResolverForRoslyn;
#endif
try
{
return base.Execute();
}
finally
{
#if NETCOREAPP
currentContext.Resolving -= ResolverForRoslyn;
#else
AppDomain.CurrentDomain.AssemblyResolve -= ResolverForRoslyn;
#endif
}
}
protected override void ExecuteCore()
{
Dictionary<string, HashSet<string>> apiCompatReferences = new();
if (ReferencePaths != null)
{
foreach (ITaskItem taskItem in ReferencePaths)
{
string tfm = taskItem.GetMetadata("TargetFramework");
if (string.IsNullOrEmpty(tfm))
continue;
string referencePath = taskItem.GetMetadata("Identity");
if (!File.Exists(referencePath))
continue;
if (!apiCompatReferences.TryGetValue(tfm, out HashSet<string>? directories))
{
directories = new();
apiCompatReferences.Add(tfm, directories);
}
directories.Add(referencePath);
}
}
MSBuildCompatibilityLogger log = new(Log, CompatibilitySuppressionFilePath, GenerateCompatibilitySuppressionFile, NoWarn);
ValidatorBootstrap.RunValidators(log,
PackageTargetPath!,
GenerateCompatibilitySuppressionFile,
RunApiCompat,
EnableStrictModeForCompatibleTfms,
EnableStrictModeForCompatibleFrameworksInPackage,
DisablePackageBaselineValidation,
BaselinePackageTargetPath,
RuntimeGraph,
apiCompatReferences);
}
#if NETCOREAPP
private Assembly? ResolverForRoslyn(AssemblyLoadContext context, AssemblyName assemblyName)
{
return LoadRoslyn(assemblyName, path => context.LoadFromAssemblyPath(path));
}
#else
private Assembly? ResolverForRoslyn(object sender, ResolveEventArgs args)
{
AssemblyName name = new(args.Name);
return LoadRoslyn(name, path => Assembly.LoadFrom(path));
}
#endif
private Assembly? LoadRoslyn(AssemblyName name, Func<string, Assembly> loadFromPath)
{
const string codeAnalysisName = "Microsoft.CodeAnalysis";
const string codeAnalysisCsharpName = "Microsoft.CodeAnalysis.CSharp";
if (name.Name == codeAnalysisName || name.Name == codeAnalysisCsharpName)
{
Assembly asm = loadFromPath(Path.Combine(RoslynAssembliesPath!, $"{name.Name}.dll"));
Version? resolvedVersion = asm.GetName().Version;
if (resolvedVersion < name.Version)
{
throw new Exception(string.Format(Resources.UpdateSdkVersion, resolvedVersion, name.Version));
}
// Being extra defensive but we want to avoid that we accidentally load two different versions of either
// of the roslyn assemblies from a different location, so let's load them both on the first request.
Assembly _ = name.Name == codeAnalysisName ?
loadFromPath(Path.Combine(RoslynAssembliesPath!, $"{codeAnalysisCsharpName}.dll")) :
loadFromPath(Path.Combine(RoslynAssembliesPath!, $"{codeAnalysisName}.dll"));
return asm;
}
return null;
}
}
}