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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.
// See the LICENSE file in the project root for more information.
#nullable disable
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using Microsoft.CodeAnalysis.Diagnostics;
using Microsoft.CodeAnalysis.Host;
using Microsoft.CodeAnalysis.Host.Mef;
using Roslyn.Utilities;
namespace Microsoft.CodeAnalysis
{
public static class CommandLineProject
{
/// <summary>
/// Create a <see cref="ProjectInfo"/> structure initialized from a compilers command line arguments.
/// </summary>
#pragma warning disable RS0026 // Type is forwarded from MS.CA.Workspaces.Desktop.
public static ProjectInfo CreateProjectInfo(string projectName, string language, IEnumerable<string> commandLineArgs, string projectDirectory, Workspace workspace = null)
#pragma warning restore RS0026 // Type is forwarded from MS.CA.Workspaces.Desktop.
{
// TODO (tomat): the method may throw all sorts of exceptions.
var tmpWorkspace = workspace ?? new AdhocWorkspace();
var languageServices = tmpWorkspace.Services.SolutionServices.GetLanguageServices(language);
if (languageServices == null)
{
throw new ArgumentException(WorkspacesResources.Unrecognized_language_name);
}
var commandLineParser = languageServices.GetRequiredService<ICommandLineParserService>();
var commandLineArguments = commandLineParser.Parse(commandLineArgs, projectDirectory, isInteractive: false, sdkDirectory: RuntimeEnvironment.GetRuntimeDirectory());
var metadataService = languageServices.SolutionServices.GetRequiredService<IMetadataService>();
// we only support file paths in /r command line arguments
var relativePathResolver =
new RelativePathResolver(commandLineArguments.ReferencePaths, commandLineArguments.BaseDirectory);
var commandLineMetadataReferenceResolver = new WorkspaceMetadataFileReferenceResolver(
metadataService, relativePathResolver);
var analyzerLoader = languageServices.SolutionServices.GetRequiredService<IAnalyzerService>().GetLoader();
var xmlFileResolver = new XmlFileResolver(commandLineArguments.BaseDirectory);
var strongNameProvider = new DesktopStrongNameProvider(commandLineArguments.KeyFileSearchPaths);
// Resolve all metadata references.
//
// In the command line compiler, it's entirely possible that duplicate reference paths may appear in this list; in the compiler
// each MetadataReference object is a distinct instance, and the deduplication is ultimately performed in the ReferenceManager
// once the Compilation actually starts to read metadata. In this code however, we're resolving with the IMetadataService, which
// has a default implementation to cache and return the same MetadataReference instance for a duplicate. This means duplicate
// reference path will create duplicate MetadataReference objects, which is disallowed by ProjectInfo.Create -- even though the
// compiler eventually would have dealt with it just fine. It's reasonable the Workspace APIs disallow duplicate reference objects
// since it makes the semantics of APIs like Add/RemoveMetadataReference tricky. But since we want to not break for command lines
// with duplicate references, we'll do a .Distinct() here, and let the Compilation do any further deduplication
// that isn't handled by this explicit instance check. This does mean that the Compilations produced through this API
// won't produce the "duplicate metadata reference" diagnostic like the real command line compiler would, but that's probably fine.
//
// Alternately, we could change the IMetadataService behavior to simply not cache, but that could theoretically break other
// callers that would now see references across projects not be the same, or hurt performance for users of MSBuildWorkspace. Given
// this is an edge case, it's not worth the larger fix here.
var boundMetadataReferences = commandLineArguments.ResolveMetadataReferences(commandLineMetadataReferenceResolver).Distinct().ToList();
var unresolvedMetadataReferences = boundMetadataReferences.FirstOrDefault(r => r is UnresolvedMetadataReference);
if (unresolvedMetadataReferences != null)
{
throw new ArgumentException(string.Format(WorkspacesResources.Can_t_resolve_metadata_reference_colon_0, ((UnresolvedMetadataReference)unresolvedMetadataReferences).Reference));
}
// resolve all analyzer references.
foreach (var path in commandLineArguments.AnalyzerReferences.Select(r => r.FilePath))
{
analyzerLoader.AddDependencyLocation(relativePathResolver.ResolvePath(path, baseFilePath: null));
}
var boundAnalyzerReferences = commandLineArguments.ResolveAnalyzerReferences(analyzerLoader).Distinct().ToList();
var unresolvedAnalyzerReferences = boundAnalyzerReferences.FirstOrDefault(r => r is UnresolvedAnalyzerReference);
if (unresolvedAnalyzerReferences != null)
{
throw new ArgumentException(string.Format(WorkspacesResources.Can_t_resolve_analyzer_reference_colon_0, ((UnresolvedAnalyzerReference)unresolvedAnalyzerReferences).Display));
}
AssemblyIdentityComparer assemblyIdentityComparer;
if (commandLineArguments.AppConfigPath != null)
{
try
{
using var appConfigStream = new FileStream(commandLineArguments.AppConfigPath, FileMode.Open, FileAccess.Read);
assemblyIdentityComparer = DesktopAssemblyIdentityComparer.LoadFromXml(appConfigStream);
}
catch (Exception e)
{
throw new ArgumentException(string.Format(WorkspacesResources.An_error_occurred_while_reading_the_specified_configuration_file_colon_0, e.Message));
}
}
else
{
assemblyIdentityComparer = DesktopAssemblyIdentityComparer.Default;
}
var projectId = ProjectId.CreateNewId(debugName: projectName);
var loadTextOptions = new LoadTextOptions(commandLineArguments.ChecksumAlgorithm);
// construct file infos
var docs = new List<DocumentInfo>();
foreach (var fileArg in commandLineArguments.SourceFiles)
{
var absolutePath = Path.IsPathRooted(fileArg.Path) || string.IsNullOrEmpty(projectDirectory)
? Path.GetFullPath(fileArg.Path)
: Path.GetFullPath(Path.Combine(projectDirectory, fileArg.Path));
var relativePath = PathUtilities.GetRelativePath(projectDirectory, absolutePath);
var isWithinProject = PathUtilities.IsChildPath(projectDirectory, absolutePath);
var folderRoot = isWithinProject ? Path.GetDirectoryName(relativePath) : "";
var folders = isWithinProject ? GetFolders(relativePath) : null;
var name = Path.GetFileName(relativePath);
var id = DocumentId.CreateNewId(projectId, absolutePath);
var doc = DocumentInfo.Create(
id,
name,
folders: folders,
sourceCodeKind: fileArg.IsScript ? SourceCodeKind.Script : SourceCodeKind.Regular,
loader: new WorkspaceFileTextLoader(languageServices.SolutionServices, absolutePath, commandLineArguments.Encoding),
filePath: absolutePath);
docs.Add(doc);
}
// construct file infos for additional files.
var additionalDocs = new List<DocumentInfo>();
foreach (var fileArg in commandLineArguments.AdditionalFiles)
{
var absolutePath = Path.IsPathRooted(fileArg.Path) || string.IsNullOrEmpty(projectDirectory)
? Path.GetFullPath(fileArg.Path)
: Path.GetFullPath(Path.Combine(projectDirectory, fileArg.Path));
var relativePath = PathUtilities.GetRelativePath(projectDirectory, absolutePath);
var isWithinProject = PathUtilities.IsChildPath(projectDirectory, absolutePath);
var folderRoot = isWithinProject ? Path.GetDirectoryName(relativePath) : "";
var folders = isWithinProject ? GetFolders(relativePath) : null;
var name = Path.GetFileName(relativePath);
var id = DocumentId.CreateNewId(projectId, absolutePath);
var doc = DocumentInfo.Create(
id: id,
name: name,
folders: folders,
sourceCodeKind: SourceCodeKind.Regular,
loader: new WorkspaceFileTextLoader(languageServices.SolutionServices, absolutePath, commandLineArguments.Encoding),
filePath: absolutePath);
additionalDocs.Add(doc);
}
// If /out is not specified and the project is a console app the csc.exe finds out the Main method
// and names the compilation after the file that contains it. We don't want to create a compilation,
// bind Mains etc. here. Besides the msbuild always includes /out in the command line it produces.
// So if we don't have the /out argument we name the compilation "<anonymous>".
var assemblyName = (commandLineArguments.OutputFileName != null) ?
Path.GetFileNameWithoutExtension(commandLineArguments.OutputFileName) : "<anonymous>";
// TODO (tomat): what should be the assemblyName when compiling a netmodule? Should it be /moduleassemblyname
var projectInfo = ProjectInfo.Create(
new ProjectInfo.ProjectAttributes(
id: projectId,
version: VersionStamp.Create(),
name: projectName,
assemblyName: assemblyName,
language: language,
compilationOutputFilePaths: new CompilationOutputInfo(commandLineArguments.OutputFileName != null ? commandLineArguments.GetOutputFilePath(commandLineArguments.OutputFileName) : null),
checksumAlgorithm: commandLineArguments.ChecksumAlgorithm),
compilationOptions: commandLineArguments.CompilationOptions
.WithXmlReferenceResolver(xmlFileResolver)
.WithAssemblyIdentityComparer(assemblyIdentityComparer)
.WithStrongNameProvider(strongNameProvider)
// TODO (https://github.com/dotnet/roslyn/issues/4967):
.WithMetadataReferenceResolver(new WorkspaceMetadataFileReferenceResolver(metadataService, new RelativePathResolver(ImmutableArray<string>.Empty, projectDirectory))),
parseOptions: commandLineArguments.ParseOptions,
documents: docs,
projectReferences: null,
metadataReferences: boundMetadataReferences,
analyzerReferences: boundAnalyzerReferences,
additionalDocuments: additionalDocs,
analyzerConfigDocuments: null,
hostObjectType: null);
return projectInfo;
}
/// <summary>
/// Create a <see cref="ProjectInfo"/> structure initialized with data from a compiler command line.
/// </summary>
#pragma warning disable RS0026 // Type is forwarded from MS.CA.Workspaces.Desktop.
public static ProjectInfo CreateProjectInfo(string projectName, string language, string commandLine, string baseDirectory, Workspace workspace = null)
#pragma warning restore RS0026 // Type is forwarded from MS.CA.Workspaces.Desktop.
{
var args = CommandLineParser.SplitCommandLineIntoArguments(commandLine, removeHashComments: true);
return CreateProjectInfo(projectName, language, args, baseDirectory, workspace);
}
private static readonly char[] s_folderSplitters = new char[] { Path.DirectorySeparatorChar };
private static IList<string> GetFolders(string path)
{
var directory = Path.GetDirectoryName(path);
if (string.IsNullOrEmpty(directory))
{
return ImmutableArray.Create<string>();
}
else
{
return directory.Split(s_folderSplitters, StringSplitOptions.RemoveEmptyEntries).ToImmutableArray();
}
}
}
}
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