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CompilerPackage.cs
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CompilerPackage.cs
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// Copyright (c) Microsoft. All Rights Reserved. Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Threading;
using System.Threading.Tasks;
using EnvDTE;
using Microsoft;
using Microsoft.VisualStudio.Shell;
using Microsoft.VisualStudio.Shell.Interop;
using Task = System.Threading.Tasks.Task;
namespace Roslyn.Compilers.Extension
{
[ProvideAutoLoad(UIContextGuids.SolutionExists, PackageAutoLoadFlags.BackgroundLoad)]
[PackageRegistration(UseManagedResourcesOnly = true, AllowsBackgroundLoading = true)]
[Guid("31C0675E-87A4-4061-A0DD-A4E510FCCF97")]
public sealed class CompilerPackage : AsyncPackage
{
public static string RoslynHive = null;
protected override async Task InitializeAsync(CancellationToken cancellationToken, IProgress<ServiceProgressData> progress)
{
await base.InitializeAsync(cancellationToken, progress).ConfigureAwait(true);
await JoinableTaskFactory.SwitchToMainThreadAsync(cancellationToken);
var reg = (ILocalRegistry2)await GetServiceAsync(typeof(SLocalRegistry)).ConfigureAwait(true);
cancellationToken.ThrowIfCancellationRequested();
Assumes.Present(reg);
var packagePath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
string localRegistryRoot;
reg.GetLocalRegistryRoot(out localRegistryRoot);
var registryParts = localRegistryRoot.Split('\\');
// Is it a valid Hive looks similar to:
// 'Software\Microsoft\VisualStudio\14.0' 'Software\Microsoft\VisualStudio\14.0Roslyn' 'Software\Microsoft\VSWinExpress\14.0'
if (registryParts.Length >= 4)
{
var skuName = registryParts[2];
var hiveName = registryParts[3];
RoslynHive = string.Format(@"{0}.{1}", registryParts[2], registryParts[3]);
await WriteMSBuildFilesAsync(packagePath, RoslynHive, cancellationToken).ConfigureAwait(true);
try
{
Microsoft.Build.Evaluation.ProjectCollection.GlobalProjectCollection.DisableMarkDirty = true;
Microsoft.Build.Evaluation.ProjectCollection.GlobalProjectCollection.SetGlobalProperty("RoslynHive", RoslynHive);
}
finally
{
Microsoft.Build.Evaluation.ProjectCollection.GlobalProjectCollection.DisableMarkDirty = false;
}
}
}
private async Task WriteMSBuildFilesAsync(string packagePath, string hiveName, CancellationToken cancellationToken)
{
// A map of the file name to the content we need to ensure exists in the file
var filesToWrite = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
// The props we want to be included as early as possible since we want our tasks to be used and
// to ensure our setting of targets path happens early enough
filesToWrite.Add(await GetMSBuildRelativePathAsync($@"Imports\Microsoft.Common.props\ImportBefore\Roslyn.Compilers.Extension.{hiveName}.props", cancellationToken).ConfigureAwait(true),
$@"<?xml version=""1.0"" encoding=""utf-8""?>
<Project xmlns=""http://schemas.microsoft.com/developer/msbuild/2003"">
<PropertyGroup Condition=""'$(RoslynHive)' == '{hiveName}'"">
<CSharpCoreTargetsPath>{packagePath}\Microsoft.CSharp.Core.targets</CSharpCoreTargetsPath>
<VisualBasicCoreTargetsPath>{packagePath}\Microsoft.VisualBasic.Core.targets</VisualBasicCoreTargetsPath>
</PropertyGroup>
<UsingTask TaskName=""Microsoft.CodeAnalysis.BuildTasks.Csc"" AssemblyFile=""{packagePath}\Microsoft.Build.Tasks.CodeAnalysis.dll"" Condition=""'$(RoslynHive)' == '{hiveName}'"" />
<UsingTask TaskName=""Microsoft.CodeAnalysis.BuildTasks.Vbc"" AssemblyFile=""{packagePath}\Microsoft.Build.Tasks.CodeAnalysis.dll"" Condition=""'$(RoslynHive)' == '{hiveName}'"" />
<UsingTask TaskName=""Microsoft.CodeAnalysis.BuildTasks.DiscoverEditorConfigFiles"" AssemblyFile=""{packagePath}\Microsoft.Build.Tasks.CodeAnalysis.dll"" Condition=""'$(RoslynHive)' == '{hiveName}'"" />
</Project>");
// This targets content we want to be included later since the project file might touch UseSharedCompilation
var targetsContent =
$@"<?xml version=""1.0"" encoding=""utf-8""?>
<Project xmlns=""http://schemas.microsoft.com/developer/msbuild/2003"">
<!-- If we're not using the compiler server, set ToolPath/Exe to direct to the exes in this package -->
<PropertyGroup Condition=""'$(RoslynHive)' == '{hiveName}' and '$(UseSharedCompilation)' == 'false'"">
<CscToolPath>{packagePath}</CscToolPath>
<CscToolExe>csc.exe</CscToolExe>
<VbcToolPath>{packagePath}</VbcToolPath>
<VbcToolExe>vbc.exe</VbcToolExe>
</PropertyGroup>
</Project>";
filesToWrite.Add(await GetMSBuildRelativePathAsync($@"Microsoft.CSharp.targets\ImportBefore\Roslyn.Compilers.Extension.{hiveName}.targets", cancellationToken).ConfigureAwait(true), targetsContent);
filesToWrite.Add(await GetMSBuildRelativePathAsync($@"Microsoft.VisualBasic.targets\ImportBefore\Roslyn.Compilers.Extension.{hiveName}.targets", cancellationToken).ConfigureAwait(true), targetsContent);
// First we want to ensure any Roslyn files with our hive name that we aren't writing -- this is probably
// leftovers from older extensions
var msbuildDirectory = new DirectoryInfo(await GetMSBuildPathAsync(cancellationToken).ConfigureAwait(true));
if (msbuildDirectory.Exists)
{
foreach (var file in msbuildDirectory.EnumerateFiles($"*Roslyn*{hiveName}*", SearchOption.AllDirectories))
{
if (!filesToWrite.ContainsKey(file.FullName))
{
file.Delete();
}
}
}
try
{
foreach (var fileAndContents in filesToWrite)
{
var parentDirectory = new DirectoryInfo(Path.GetDirectoryName(fileAndContents.Key));
parentDirectory.Create();
// If we already know the file has the same contents, then we can skip
if (File.Exists(fileAndContents.Key) && File.ReadAllText(fileAndContents.Key) == fileAndContents.Value)
{
continue;
}
File.WriteAllText(fileAndContents.Key, fileAndContents.Value);
}
}
catch (Exception e)
{
var msg =
$@"{e.Message}
To reload the Roslyn compiler package, close Visual Studio and any MSBuild processes, then restart Visual Studio.";
VsShellUtilities.ShowMessageBox(
this,
msg,
null,
OLEMSGICON.OLEMSGICON_WARNING,
OLEMSGBUTTON.OLEMSGBUTTON_OK,
OLEMSGDEFBUTTON.OLEMSGDEFBUTTON_FIRST);
}
}
private async Task<string> GetMSBuildVersionStringAsync(CancellationToken cancellationToken)
{
await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync(cancellationToken);
var dte = (DTE)await GetServiceAsync(typeof(SDTE)).ConfigureAwait(true);
var parts = dte.Version.Split('.');
if (parts.Length != 2)
{
throw new Exception($"Unrecognized Visual Studio Version: {dte.Version}");
}
int majorVersion = int.Parse(parts[0]);
if (majorVersion >= 16)
{
// Starting in Visual Studio 2019, the folder is just called "Current". See
// https://github.com/Microsoft/msbuild/issues/4149 for further commentary.
return "Current";
}
else
{
return majorVersion + ".0";
}
}
private async Task<string> GetMSBuildPathAsync(CancellationToken cancellationToken)
{
var version = await GetMSBuildVersionStringAsync(cancellationToken).ConfigureAwait(true);
var localAppData = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
return Path.Combine(localAppData, $@"Microsoft\MSBuild\{version}");
}
private async Task<string> GetMSBuildRelativePathAsync(string relativePath, CancellationToken cancellationToken)
{
return Path.Combine(await GetMSBuildPathAsync(cancellationToken).ConfigureAwait(true), relativePath);
}
}
}