Add support for reading DepedencyContext from deps file

TestAssets/TestProjects/DependencyContextValidator/DependencyContextValidator/DependencyContextValidator.xproj

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0.24720" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0.24720</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" Condition="'$(VSToolsPath)' != ''" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>6d84ef36-a5d5-4eaf-b38b-ced635473785</ProjectGuid>
+    <RootNamespace>DependencyContextValidator</RootNamespace>
+    <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\..\..\..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">..\..\..\..\artifacts\bin\$(MSBuildProjectName)\</OutputPath>
+  </PropertyGroup>
+
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.targets" Condition="'$(VSToolsPath)' != ''" />
+</Project>

TestAssets/TestProjects/DependencyContextValidator/DependencyContextValidator/Validator.cs

@@ -0,0 +1,65 @@
+// 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.IO;
+using System.Linq;
+using System.Reflection;
+
+namespace Microsoft.Extensions.DependencyModel
+{
+    public static class DependencyContextValidator
+    {
+        private static void Error(string message)
+        {
+            throw new InvalidOperationException(message);
+        }
+
+        private static void CheckMetadata(Library library)
+        {
+            if (string.Equals(library.LibraryType, "package", StringComparison.OrdinalIgnoreCase))
+            {
+                if (string.IsNullOrWhiteSpace(library.PackageName) ||
+                    string.IsNullOrWhiteSpace(library.Hash) ||
+                    string.IsNullOrWhiteSpace(library.Version))
+                {
+                    Error($"Empty metadata for {library.GetType().ToString()} {library.PackageName}");
+                }
+            }
+        }
+
+        public static void Validate(bool full)
+        {
+            var context = DependencyContext.Default;
+            if (full)
+            {
+                if (!context.CompileLibraries.Any())
+                {
+                    Error("Compilation libraries empty");
+                }
+                foreach (var compilationLibrary in context.CompileLibraries)
+                {
+                    CheckMetadata(compilationLibrary);
+                    var resolvedPaths = compilationLibrary.ResolveReferencePaths();
+                    foreach (var resolvedPath in resolvedPaths)
+                    {
+                        if (!File.Exists(resolvedPath))
+                        {
+                            Error($"Compilataion library resolved to non existent path {resolvedPath}");
+                        }
+                    }
+                }
+            }
+
+            foreach (var runtimeLibrary in context.RuntimeLibraries)
+            {
+                CheckMetadata(runtimeLibrary);
+                foreach (var runtimeAssembly in runtimeLibrary.Assemblies)
+                {
+                    var assembly = Assembly.Load(runtimeAssembly.Name);
+                }
+            }
+
+        }
+    }
+}

TestAssets/TestProjects/DependencyContextValidator/DependencyContextValidator/project.json

@@ -0,0 +1,14 @@
+{
+    "version": "1.0.0-*",
+    "dependencies": {
+        "NETStandard.Library": "1.0.0-rc2-23811",
+        "Microsoft.Extensions.DependencyModel": {
+            "target": "project",
+            "version": "1.0.0-*"
+        }
+    },
+
+    "frameworks": {
+        "dnxcore50": { }
+    }
+}

TestAssets/TestProjects/DependencyContextValidator/TestApp/Program.cs

@@ -0,0 +1,16 @@
+// 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.Diagnostics;
+
+namespace TestApp
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            Microsoft.Extensions.DependencyModel.DependencyContextValidator.Validate(true);
+        }
+    }
+}

TestAssets/TestProjects/DependencyContextValidator/TestApp/project.json

@@ -0,0 +1,16 @@
+{
+    "version": "1.0.0-*",
+    "compilationOptions": {
+        "emitEntryPoint": true,
+        "preserveCompilationContext": true
+    },
+
+    "dependencies": {
+        "NETStandard.Library": "1.0.0-rc2-23811",
+        "DependencyContextValidator": "1.0.0-*"
+    },
+
+    "frameworks": {
+        "dnxcore50": { }
+    }
+}

TestAssets/TestProjects/DependencyContextValidator/TestAppDeps/Program.cs

@@ -0,0 +1,16 @@
+// 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.Diagnostics;
+
+namespace TestApp
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            Microsoft.Extensions.DependencyModel.DependencyContextValidator.Validate(false);
+        }
+    }
+}

TestAssets/TestProjects/DependencyContextValidator/TestAppDeps/project.json

@@ -0,0 +1,15 @@
+{
+    "version": "1.0.0-*",
+    "compilationOptions": {
+        "emitEntryPoint": true,
+    },
+
+    "dependencies": {
+        "NETStandard.Library": "1.0.0-rc2-23811",
+        "DependencyContextValidator": "1.0.0-*"
+    },
+
+    "frameworks": {
+        "dnxcore50": { }
+    }
+}

TestAssets/TestProjects/DependencyContextValidator/global.json

@@ -0,0 +1,3 @@
+{
+    "projects": [ ".", "../../../src" ]
+}

TestAssets/TestProjects/TestAppCompilationContext/TestApp/Program.cs

@@ -8,10 +8,8 @@ namespace TestApp
 {
     public class Program
     {
-        public static int Main(string[] args)
+        public static void Main(string[] args)
         {
-            Console.WriteLine(TestLibrary.Helper.GetMessage());
-            return 100;
         }
     }
 }

TestAssets/TestProjects/TestAppCompilationContext/global.json

@@ -1,3 +1,3 @@
 {
-    "projects": [ "."]
+    "projects": [ "." ]
 }

src/Microsoft.Extensions.DependencyModel/DependencyContext.cs

@@ -11,6 +11,7 @@ namespace Microsoft.Extensions.DependencyModel
     public class DependencyContext
     {
         private const string DepsResourceSufix = ".deps.json";
+        private const string DepsFileExtension = ".deps";
 
         private static readonly Lazy<DependencyContext> _defaultContext = new Lazy<DependencyContext>(LoadDefault);
 
@@ -43,22 +44,29 @@ namespace Microsoft.Extensions.DependencyModel
 
         public static DependencyContext Load(Assembly assembly)
         {
-            var stream = assembly.GetManifestResourceStream(assembly.GetName().Name + DepsResourceSufix);
+            if (assembly == null)
-
-            if (stream == null)
             {
-                return null;
+                throw new ArgumentNullException(nameof(assembly));
             }
 
-            using (stream)
+            using (var stream = assembly.GetManifestResourceStream(assembly.GetName().Name + DepsResourceSufix))
             {
-                return Load(stream);
+                if (stream != null)
+                {
+                    return new DependencyContextJsonReader().Read(stream);
+                }
             }
-        }
 
-        public static DependencyContext Load(Stream stream)
+            var depsFile = Path.ChangeExtension(assembly.Location, DepsFileExtension);
-        {
+            if (File.Exists(depsFile))
-            return new DependencyContextReader().Read(stream);
+            {
+                using (var stream = File.OpenRead(depsFile))
+                {
+                    return new DependencyContextCsvReader().Read(stream);
+                }
+            }
+
+            return null;
         }
     }
 }

src/Microsoft.Extensions.DependencyModel/DependencyContextCsvReader.cs

@@ -0,0 +1,130 @@
+// 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.Linq;
+using System.Text;
+
+namespace Microsoft.Extensions.DependencyModel
+{
+    public class DependencyContextCsvReader
+    {
+        public DependencyContext Read(Stream stream)
+        {
+            var lines = new List<DepsFileLine>();
+            using (var reader = new StreamReader(stream))
+            {
+                while (!reader.EndOfStream)
+                {
+                    var line = new DepsFileLine();
+                    line.LibraryType = ReadValue(reader);
+                    line.PackageName = ReadValue(reader);
+                    line.PackageVersion = ReadValue(reader);
+                    line.PackageHash = ReadValue(reader);
+                    line.AssetType = ReadValue(reader);
+                    line.AssetName = ReadValue(reader);
+                    line.AssetPath = ReadValue(reader);
+
+                    if (line.AssetType == "runtime" &&
+                        !line.AssetPath.EndsWith(".ni.dll"))
+                    {
+                        lines.Add(line);
+                    }
+                    SkipWhitespace(reader);
+                }
+            }
+
+            var runtimeLibraries = new List<RuntimeLibrary>();
+            var packageGroups = lines.GroupBy(PackageIdentity);
+            foreach (var packageGroup in packageGroups)
+            {
+                var identity = packageGroup.Key;
+                runtimeLibraries.Add(new RuntimeLibrary(
+                    libraryType: identity.Item1,
+                    packageName: identity.Item2,
+                    version: identity.Item3,
+                    hash: identity.Item4,
+                    assemblies: packageGroup.Select(l => l.AssetPath).ToArray(),
+                    dependencies: new Dependency[] { },
+                    serviceable: false
+                    ));
+            }
+
+            return new DependencyContext(
+                target: string.Empty,
+                runtime: string.Empty,
+                compilationOptions: CompilationOptions.Default,
+                compileLibraries: new CompilationLibrary[] {},
+                runtimeLibraries: runtimeLibraries.ToArray());
+        }
+
+        private Tuple<string, string, string, string> PackageIdentity(DepsFileLine line)
+        {
+            return Tuple.Create(line.LibraryType, line.PackageName, line.PackageVersion, line.PackageHash);
+        }
+
+        private void SkipWhitespace(StreamReader reader)
+        {
+            // skip all whitespace
+            while (!reader.EndOfStream && char.IsWhiteSpace((char)reader.Peek()))
+            {
+                reader.Read();
+            }
+        }
+
+        private string ReadValue(StreamReader reader)
+        {
+            SkipWhitespace(reader);
+
+            var c = ReadSucceed(reader.Read());
+            if (c != '"')
+            {
+                throw new FormatException("Deps file value should start with '\"'");
+            }
+
+            var value = new StringBuilder();
+            while (ReadSucceed(reader.Peek()) != '"')
+            {
+                c = ReadSucceed(reader.Read());
+                if (c == '\\')
+                {
+                    value.Append(ReadSucceed(reader.Read()));
+                }
+                else
+                {
+                    value.Append(c);
+                }
+            }
+            // Read last "
+            ReadSucceed(reader.Read());
+            // Read comment
+            if (reader.Peek() == ',')
+            {
+                reader.Read();
+            }
+            return value.ToString();
+        }
+
+        private char ReadSucceed(int c)
+        {
+            if (c == -1)
+            {
+                throw new FormatException("Unexpected end of file");
+            }
+            return (char) c;
+        }
+
+        private struct DepsFileLine
+        {
+            public string LibraryType;
+            public string PackageName;
+            public string PackageVersion;
+            public string PackageHash;
+            public string AssetType;
+            public string AssetName;
+            public string AssetPath;
+        }
+    }
+}

src/Microsoft.Extensions.DependencyModel/DependencyContextJsonReader.cs

@@ -10,7 +10,7 @@ using Newtonsoft.Json.Linq;
 
 namespace Microsoft.Extensions.DependencyModel
 {
-    public class DependencyContextReader
+    public class DependencyContextJsonReader
     {
         public DependencyContext Read(Stream stream)
         {

src/Microsoft.Extensions.DependencyModel/RuntimeAssembly.cs

@@ -8,18 +8,20 @@ namespace Microsoft.Extensions.DependencyModel
 {
     public class RuntimeAssembly
     {
+        private readonly string _assemblyName;
+
         public RuntimeAssembly(string path)
-            : this(new AssemblyName(System.IO.Path.GetFileNameWithoutExtension(path)), path)
+            : this(System.IO.Path.GetFileNameWithoutExtension(path), path)
         {
         }
 
-        public RuntimeAssembly(AssemblyName name, string path)
+        public RuntimeAssembly(string assemblyName, string path)
         {
-            Name = name;
+            _assemblyName = assemblyName;
             Path = path;
         }
 
-        public AssemblyName Name { get; }
+        public AssemblyName Name => new AssemblyName(_assemblyName);
 
         public string Path { get; }
     }

test/Microsoft.Extensions.DependencyModel.Tests/DependencyContextCsvReaderTests.cs

@@ -0,0 +1,94 @@
+// 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.Linq;
+using System.Threading.Tasks;
+using System.Text;
+using Microsoft.Extensions.DependencyModel;
+using FluentAssertions;
+using Xunit;
+
+namespace Microsoft.Extensions.DependencyModel.Tests
+{
+    public class DependencyContextCsvReaderTests
+    {
+        private DependencyContext Read(string text)
+        {
+            using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(text)))
+            {
+                return new DependencyContextCsvReader().Read(stream);
+            }
+        }
+
+        [Fact]
+        public void GroupsAssetsCorrectlyIntoLibraries()
+        {
+            var context = Read(@"
+""Package"",""runtime.any.System.AppContext"",""4.1.0-rc2-23811"",""sha512-1"",""runtime"",""System.AppContext"",""lib\\dnxcore50\\System.AppContext.dll""
+""Package"",""runtime.any.System.AppContext"",""4.1.0-rc2-23811"",""sha512-1"",""runtime"",""System.AppContext"",""lib\\dnxcore50\\System.Runtime.dll""
+");
+            context.RuntimeLibraries.Should().HaveCount(1);
+            var library = context.RuntimeLibraries.Single();
+            library.LibraryType.Should().Be("Package");
+            library.PackageName.Should().Be("runtime.any.System.AppContext");
+            library.Version.Should().Be("4.1.0-rc2-23811");
+            library.Hash.Should().Be("sha512-1");
+            library.Assemblies.Should().HaveCount(2).And
+                .Contain(a => a.Path == "lib\\dnxcore50\\System.AppContext.dll").And
+                .Contain(a => a.Path == "lib\\dnxcore50\\System.Runtime.dll");
+        }
+
+        [Fact]
+        public void IgnoresAllButRuntimeAssets()
+        {
+            var context = Read(@"
+""Package"",""runtime.any.System.AppContext"",""4.1.0-rc2-23811"",""sha512-1"",""runtime"",""System.AppContext"",""lib\\dnxcore50\\System.AppContext.dll""
+""Package"",""runtime.any.System.AppContext"",""4.1.0-rc2-23811"",""sha512-1"",""native"",""System.AppContext"",""lib\\dnxcore50\\System.AppContext2.so""
+");
+            context.RuntimeLibraries.Should().HaveCount(1);
+            var library = context.RuntimeLibraries.Single();
+            library.Assemblies.Should().HaveCount(1).And
+                .Contain(a => a.Path == "lib\\dnxcore50\\System.AppContext.dll");
+        }
+
+        [Fact]
+        public void IgnoresNiDllAssemblies()
+        {
+            var context = Read(@"
+""Package"",""runtime.any.System.AppContext"",""4.1.0-rc2-23811"",""sha512-1"",""runtime"",""System.AppContext"",""lib\\dnxcore50\\System.AppContext.dll""
+""Package"",""runtime.any.System.AppContext"",""4.1.0-rc2-23811"",""sha512-1"",""runtime"",""System.AppContext"",""lib\\dnxcore50\\System.AppContext.ni.dll""
+");
+            context.RuntimeLibraries.Should().HaveCount(1);
+            var library = context.RuntimeLibraries.Single();
+            library.Assemblies.Should().HaveCount(1).And
+                .Contain(a => a.Path == "lib\\dnxcore50\\System.AppContext.dll");
+        }
+
+        [Fact]
+        public void UsesTypeNameVersionAndHashToGroup()
+        {
+            var context = Read(@"
+""Package"",""runtime.any.System.AppContext"",""4.1.0-rc2-23811"",""sha512-1"",""runtime"",""System.AppContext"",""lib\\dnxcore50\\System.AppContext.dll""
+""Package"",""runtime.any.System.AppContext"",""4.1.0-rc2-23812"",""sha512-1"",""runtime"",""System.AppContext"",""lib\\dnxcore50\\System.AppContext.dll""
+""Package"",""runtime.any.System.AppContext"",""4.1.0-rc2-23811"",""sha512-2"",""runtime"",""System.AppContext"",""lib\\dnxcore50\\System.AppContext.dll""
+""Package"",""runtime.any.System.AppContext2"",""4.1.0-rc2-23811"",""sha512-1"",""runtime"",""System.AppContext"",""lib\\dnxcore50\\System.AppContext.dll""
+""Project"",""runtime.any.System.AppContext"",""4.1.0-rc2-23811"",""sha512-1"",""runtime"",""System.AppContext"",""lib\\dnxcore50\\System.AppContext.dll""
+");
+            context.RuntimeLibraries.Should().HaveCount(5);
+        }
+
+        [Theory]
+        [InlineData("text")]
+        [InlineData(" ")]
+        [InlineData("\"")]
+        [InlineData(@""",""")]
+        [InlineData(@"\\")]
+        public void ThrowsFormatException(string intput)
+        {
+            Assert.Throws<FormatException>(() => Read(intput));
+        }
+    }
+}

test/dotnet-compile.Tests/CompilerTests.cs

@@ -4,6 +4,7 @@
 using System;
 using System.IO;
 using Microsoft.DotNet.Cli.Utils;
+using Microsoft.DotNet.TestFramework;
 using Microsoft.DotNet.Tools.Test.Utilities;
 using FluentAssertions;
 using Xunit;
@@ -146,6 +147,26 @@ namespace Microsoft.DotNet.Tools.Compiler.Tests
             result.StdOut.Should().Contain("MyNamespace.Util");
         }
 
+        [Fact]
+        public void EmbeddedDependencyContextIsValidOnBuild()
+        {
+            var testProjectPath = Path.Combine(RepoRoot, "TestAssets", "TestProjects", "DependencyContextValidator", "TestApp");
+            var testProject = Path.Combine(testProjectPath, "project.json");
+
+            var runCommand = new RunCommand(testProject);
+            runCommand.Execute().Should().Pass();
+        }
+
+        [Fact]
+        public void DepsDependencyContextIsValidOnBuild()
+        {
+                var testProjectPath = Path.Combine(RepoRoot, "TestAssets", "TestProjects", "DependencyContextValidator", "TestAppDeps");
+                var testProject = Path.Combine(testProjectPath, "project.json");
+
+                var runCommand = new RunCommand(testProject);
+                runCommand.Execute().Should().Pass();
+        }
+
         private void CopyProjectToTempDir(string projectDir, TempDirectory tempDir)
         {
             // copy all the files to temp dir

test/dotnet-compile.Tests/project.json

@@ -20,6 +20,7 @@
   },
 
   "content": [
+    "../../TestAssets/TestProjects/DependencyContextValidator/**/*",
     "../../TestAssets/TestProjects/TestLibraryWithAnalyzer/*",
     "../../TestAssets/TestProjects/TestAppWithLibrary/TestLibrary/*",
     "../../TestAssets/TestProjects/TestProjectWithCultureSpecificResource/*",

test/dotnet-publish.Tests/Microsoft.DotNet.Tools.Publish.Tests.cs

@@ -4,6 +4,7 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Text.RegularExpressions;
+using Microsoft.DotNet.Cli.Utils;
 using Microsoft.DotNet.TestFramework;
 using Microsoft.DotNet.Tools.Test.Utilities;
 using Microsoft.Extensions.PlatformAbstractions;
@@ -163,7 +164,6 @@ namespace Microsoft.DotNet.Tools.Publish.Tests
             refsDirectory.Should().NotHaveFile("TestLibrary.dll");
         }
 
-
         [Fact]
         public void CompilationFailedTest()
         {