omnisharp-roslyn-sign.diff

diff --git a/src/OmniSharp.MSBuild/MSBuildProjectSystem.cs b/src/OmniSharp.MSBuild/MSBuildProjectSystem.cs
index 3ebdeb9..66c8236 100644
--- a/src/OmniSharp.MSBuild/MSBuildProjectSystem.cs
+++ b/src/OmniSharp.MSBuild/MSBuildProjectSystem.cs
@@ -134,6 +134,12 @@ public void Initalize(IConfiguration configuration)
                     compilationOptions = compilationOptions.WithAllowUnsafe(true);
                 }
 
+                if (projectFileInfo.SignAssembly && !string.IsNullOrEmpty(projectFileInfo.AssemblyOriginatorKeyFile))
+                {
+                    compilationOptions = compilationOptions.WithStrongNameProvider(new DesktopStrongNameProvider())
+                                                           .WithCryptoKeyFile(projectFileInfo.AssemblyOriginatorKeyFile);
+                }
+
                 var projectInfo = ProjectInfo.Create(ProjectId.CreateNewId(projectFileInfo.Name),
                                                      VersionStamp.Create(),
                                                      projectFileInfo.Name,
diff --git a/src/OmniSharp.MSBuild/ProjectFile/ProjectFileInfo.cs b/src/OmniSharp.MSBuild/ProjectFile/ProjectFileInfo.cs
index 1d1f3a6..799161d 100644
--- a/src/OmniSharp.MSBuild/ProjectFile/ProjectFileInfo.cs
+++ b/src/OmniSharp.MSBuild/ProjectFile/ProjectFileInfo.cs
@@ -47,6 +47,10 @@ public class ProjectFileInfo
 
         public OutputKind OutputKind { get; private set; }
 
+        public bool SignAssembly { get; private set; }
+
+        public string AssemblyOriginatorKeyFile { get; private set; }
+
         public static ProjectFileInfo Create(MSBuildOptions options, ILogger logger, string solutionDirectory, string projectFilePath, ICollection<MSBuildDiagnosticsMessage> diagnostics)
         {
             var projectFileInfo = new ProjectFileInfo();
@@ -133,6 +137,14 @@ public static ProjectFileInfo Create(MSBuildOptions options, ILogger logger, str
                 {
                     projectFileInfo.DefineConstants = defineConstants.Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries).Distinct().ToList();
                 }
+
+                var signAssembly = projectInstance.GetPropertyValue("SignAssembly");
+                if (!string.IsNullOrWhiteSpace(signAssembly))
+                {
+                    projectFileInfo.SignAssembly = Convert.ToBoolean(signAssembly);
+                }
+
+                projectFileInfo.AssemblyOriginatorKeyFile = Path.Combine(projectFileInfo.ProjectDirectory, projectInstance.GetPropertyValue("AssemblyOriginatorKeyFile"));
             }
             else
             {
@@ -211,6 +223,14 @@ public static ProjectFileInfo Create(MSBuildOptions options, ILogger logger, str
                 {
                     projectFileInfo.DefineConstants = defineConstants.Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries).Distinct().ToList();
                 }
+
+                var signAssembly = properties["SignAssembly"].FinalValue;
+                if (!string.IsNullOrWhiteSpace(signAssembly))
+                {
+                    projectFileInfo.SignAssembly = Convert.ToBoolean(signAssembly);
+                }
+
+                projectFileInfo.AssemblyOriginatorKeyFile = Path.Combine(projectFileInfo.ProjectDirectory, properties["AssemblyOriginatorKeyFile"].FinalValue);
             }
             return projectFileInfo;
         }