File: HostWorkspace\WorkspaceProject.cs
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Project: src\src\LanguageServer\Microsoft.CodeAnalysis.LanguageServer\Microsoft.CodeAnalysis.LanguageServer.csproj (Microsoft.CodeAnalysis.LanguageServer)
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
using System.Collections.Immutable;
using Microsoft.CodeAnalysis.Host;
using Microsoft.CodeAnalysis.LanguageServer.Handler.DebugConfiguration;
using Microsoft.CodeAnalysis.Remote.ProjectSystem;
using Microsoft.CodeAnalysis.Workspaces.ProjectSystem;
using Roslyn.Utilities;
 
namespace Microsoft.CodeAnalysis.LanguageServer.HostWorkspace;
 
internal class WorkspaceProject : IWorkspaceProject
{
    private readonly ProjectSystemProject _project;
    private readonly ProjectSystemProjectOptionsProcessor _optionsProcessor;
    private readonly ProjectTargetFrameworkManager _targetFrameworkManager;
 
    public WorkspaceProject(ProjectSystemProject project, SolutionServices solutionServices, ProjectTargetFrameworkManager targetFrameworkManager)
    {
        _project = project;
        _optionsProcessor = new ProjectSystemProjectOptionsProcessor(_project, solutionServices);
        _targetFrameworkManager = targetFrameworkManager;
    }
 
    [Obsolete($"Call the {nameof(AddAdditionalFilesAsync)} overload that takes {nameof(SourceFileInfo)}.")]
    public async Task AddAdditionalFilesAsync(IReadOnlyList<string> additionalFilePaths, CancellationToken cancellationToken)
    {
        var disposableBatchScope = await _project.CreateBatchScopeAsync(cancellationToken).ConfigureAwait(false);
        await using var _ = disposableBatchScope.ConfigureAwait(false);
 
        foreach (var additionalFilePath in additionalFilePaths)
            _project.AddAdditionalFile(additionalFilePath);
    }
 
    public async Task AddAdditionalFilesAsync(IReadOnlyList<SourceFileInfo> additionalFiles, CancellationToken cancellationToken)
    {
        var disposableBatchScope = await _project.CreateBatchScopeAsync(cancellationToken).ConfigureAwait(false);
        await using var _ = disposableBatchScope.ConfigureAwait(false);
 
        foreach (var additionalFile in additionalFiles)
            _project.AddAdditionalFile(additionalFile.FilePath, folders: [.. additionalFile.FolderNames]);
    }
 
    public async Task AddAnalyzerConfigFilesAsync(IReadOnlyList<string> analyzerConfigPaths, CancellationToken cancellationToken)
    {
        var disposableBatchScope = await _project.CreateBatchScopeAsync(cancellationToken).ConfigureAwait(false);
        await using var _ = disposableBatchScope.ConfigureAwait(false);
 
        foreach (var analyzerConfigPath in analyzerConfigPaths)
            _project.AddAnalyzerConfigFile(analyzerConfigPath);
    }
 
    public async Task AddAnalyzerReferencesAsync(IReadOnlyList<string> analyzerPaths, CancellationToken cancellationToken)
    {
        var disposableBatchScope = await _project.CreateBatchScopeAsync(cancellationToken).ConfigureAwait(false);
        await using var _ = disposableBatchScope.ConfigureAwait(false);
 
        foreach (var analyzerPath in analyzerPaths)
            _project.AddAnalyzerReference(analyzerPath);
    }
 
    public async Task AddDynamicFilesAsync(IReadOnlyList<string> dynamicFilePaths, CancellationToken cancellationToken)
    {
        var disposableBatchScope = await _project.CreateBatchScopeAsync(cancellationToken).ConfigureAwait(false);
        await using var _ = disposableBatchScope.ConfigureAwait(false);
 
        foreach (var dynamicFilePath in dynamicFilePaths)
            _project.AddDynamicSourceFile(dynamicFilePath, folders: ImmutableArray<string>.Empty);
    }
 
    public async Task AddMetadataReferencesAsync(IReadOnlyList<MetadataReferenceInfo> metadataReferences, CancellationToken cancellationToken)
    {
        var disposableBatchScope = await _project.CreateBatchScopeAsync(cancellationToken).ConfigureAwait(false);
        await using var _ = disposableBatchScope.ConfigureAwait(false);
 
        foreach (var metadataReference in metadataReferences)
            _project.AddMetadataReference(metadataReference.FilePath, metadataReference.CreateProperties());
    }
 
    public async Task AddSourceFilesAsync(IReadOnlyList<SourceFileInfo> sourceFiles, CancellationToken cancellationToken)
    {
        var disposableBatchScope = await _project.CreateBatchScopeAsync(cancellationToken).ConfigureAwait(false);
        await using var _ = disposableBatchScope.ConfigureAwait(false);
 
        foreach (var sourceFile in sourceFiles)
            _project.AddSourceFile(sourceFile.FilePath, folders: [.. sourceFile.FolderNames]);
    }
 
    public void Dispose()
    {
        _project.RemoveFromWorkspace();
    }
 
    public async Task RemoveAdditionalFilesAsync(IReadOnlyList<string> additionalFilePaths, CancellationToken cancellationToken)
    {
        var disposableBatchScope = await _project.CreateBatchScopeAsync(cancellationToken).ConfigureAwait(false);
        await using var _ = disposableBatchScope.ConfigureAwait(false);
 
        foreach (var additionalFilePath in additionalFilePaths)
            _project.RemoveAdditionalFile(additionalFilePath);
    }
 
    public async Task RemoveAnalyzerConfigFilesAsync(IReadOnlyList<string> analyzerConfigPaths, CancellationToken cancellationToken)
    {
        var disposableBatchScope = await _project.CreateBatchScopeAsync(cancellationToken).ConfigureAwait(false);
        await using var _ = disposableBatchScope.ConfigureAwait(false);
 
        foreach (var analyzerConfigPath in analyzerConfigPaths)
            _project.RemoveAnalyzerConfigFile(analyzerConfigPath);
    }
 
    public async Task RemoveAnalyzerReferencesAsync(IReadOnlyList<string> analyzerPaths, CancellationToken cancellationToken)
    {
        var disposableBatchScope = await _project.CreateBatchScopeAsync(cancellationToken).ConfigureAwait(false);
        await using var _ = disposableBatchScope.ConfigureAwait(false);
 
        foreach (var analyzerPath in analyzerPaths)
            _project.RemoveAnalyzerReference(analyzerPath);
    }
 
    public async Task RemoveDynamicFilesAsync(IReadOnlyList<string> dynamicFilePaths, CancellationToken cancellationToken)
    {
        var disposableBatchScope = await _project.CreateBatchScopeAsync(cancellationToken).ConfigureAwait(false);
        await using var _ = disposableBatchScope.ConfigureAwait(false);
 
        foreach (var dynamicFilePath in dynamicFilePaths)
            _project.RemoveDynamicSourceFile(dynamicFilePath);
    }
 
    public async Task RemoveMetadataReferencesAsync(IReadOnlyList<MetadataReferenceInfo> metadataReferences, CancellationToken cancellationToken)
    {
        var disposableBatchScope = await _project.CreateBatchScopeAsync(cancellationToken).ConfigureAwait(false);
        await using var _ = disposableBatchScope.ConfigureAwait(false);
 
        foreach (var metadataReference in metadataReferences)
            _project.RemoveMetadataReference(metadataReference.FilePath, metadataReference.CreateProperties());
    }
 
    public async Task RemoveSourceFilesAsync(IReadOnlyList<string> sourceFiles, CancellationToken cancellationToken)
    {
        var disposableBatchScope = await _project.CreateBatchScopeAsync(cancellationToken).ConfigureAwait(false);
        await using var _ = disposableBatchScope.ConfigureAwait(false);
 
        foreach (var sourceFile in sourceFiles)
            _project.RemoveSourceFile(sourceFile);
    }
 
    public async Task SetBuildSystemPropertiesAsync(IReadOnlyDictionary<string, string> properties, CancellationToken cancellationToken)
    {
        // Create a batch scope, just so we have asynchronous closing and application of the batch.
        var disposableBatchScope = await _project.CreateBatchScopeAsync(cancellationToken).ConfigureAwait(false);
        await using var _ = disposableBatchScope.ConfigureAwait(false);
 
        string? fileDirectory = null;
 
        foreach (var (name, value) in properties)
        {
            var valueOrNull = string.IsNullOrEmpty(value) ? null : value;
 
            switch (name)
            {
                case "AssemblyName": _project.AssemblyName = value; break;
                case "IntermediateAssembly": _project.CompilationOutputAssemblyFilePath = GetFullyQualifiedPath(valueOrNull); break;
                case "MaxSupportedLangVersion": _project.MaxLangVersion = value; break;
                case "RootNamespace": _project.DefaultNamespace = valueOrNull; break;
                case "RunAnalyzers": _project.RunAnalyzers = bool.Parse(valueOrNull ?? bool.TrueString); break;
                case "RunAnalyzersDuringLiveAnalysis": _project.RunAnalyzersDuringLiveAnalysis = bool.Parse(valueOrNull ?? bool.TrueString); break;
                case "TargetPath": _project.OutputFilePath = GetFullyQualifiedPath(valueOrNull); break;
                case "TargetRefPath": _project.OutputRefFilePath = GetFullyQualifiedPath(valueOrNull); break;
                case "TargetFrameworkIdentifier": _targetFrameworkManager.UpdateIdentifierForProject(_project.Id, valueOrNull); break;
            }
        }
 
        string? GetFullyQualifiedPath(string? propertyValue)
        {
            Contract.ThrowIfNull(_project.FilePath, "We don't have a project path at this point.");
 
            // Path.Combine doesn't check if the first parameter is an absolute path to a file instead of a directory,
            // so make sure to use the directory from the _project.FilePath. If the propertyValue is an absolute
            // path that will still be used, but if it's a relative path it will correctly construct the full path.
            fileDirectory ??= Path.GetDirectoryName(_project.FilePath);
            Contract.ThrowIfNull(fileDirectory);
 
            if (propertyValue is not null)
                return Path.Combine(fileDirectory, propertyValue);
            else
                return null;
        }
    }
 
    public async Task SetCommandLineArgumentsAsync(IReadOnlyList<string> arguments, CancellationToken cancellationToken)
    {
        // Create a batch scope, just so we have asynchronous closing and application of the batch.
        var disposableBatchScope = await _project.CreateBatchScopeAsync(cancellationToken).ConfigureAwait(false);
        await using var _ = disposableBatchScope.ConfigureAwait(false);
 
        _optionsProcessor.SetCommandLine([.. arguments]);
    }
 
    public async Task SetDisplayNameAsync(string displayName, CancellationToken cancellationToken)
    {
        // Create a batch scope, just so we have asynchronous closing and application of the batch.
        var disposableBatchScope = await _project.CreateBatchScopeAsync(cancellationToken).ConfigureAwait(false);
        await using var _ = disposableBatchScope.ConfigureAwait(false);
 
        _project.DisplayName = displayName;
    }
 
    public async Task SetProjectHasAllInformationAsync(bool hasAllInformation, CancellationToken cancellationToken)
    {
        // Create a batch scope, just so we have asynchronous closing and application of the batch.
        var disposableBatchScope = await _project.CreateBatchScopeAsync(cancellationToken).ConfigureAwait(false);
        await using var _ = disposableBatchScope.ConfigureAwait(false);
 
        _project.HasAllInformation = hasAllInformation;
    }
 
    public async Task<IWorkspaceProjectBatch> StartBatchAsync(CancellationToken cancellationToken)
    {
        var disposableBatchScope = await _project.CreateBatchScopeAsync(cancellationToken).ConfigureAwait(false);
        await using var _ = disposableBatchScope.ConfigureAwait(false);
 
        return new WorkspaceProjectBatch(_project.CreateBatchScope());
    }
 
    private class WorkspaceProjectBatch : IWorkspaceProjectBatch
    {
        private IAsyncDisposable? _batch;
 
        public WorkspaceProjectBatch(IAsyncDisposable batch)
        {
            _batch = batch;
        }
 
        public async Task ApplyAsync(CancellationToken cancellationToken)
        {
            if (_batch == null)
                throw new InvalidOperationException("The batch has already been applied.");
 
            await _batch.DisposeAsync().ConfigureAwait(false);
            _batch = null;
        }
 
        public void Dispose()
        {
        }
    }
}