Using SetupConfiguration to get the version in VisualStudio 15 and above

Author: StanleyGoldman

src/GitHub.Exports/GitHub.Exports.csproj

@@ -63,6 +63,10 @@
       <HintPath>..\..\packages\Microsoft.VisualStudio.ComponentModelHost.14.0.25424\lib\net45\Microsoft.VisualStudio.ComponentModelHost.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="Microsoft.VisualStudio.Setup.Configuration.Interop, Version=1.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Microsoft.VisualStudio.Setup.Configuration.Interop.1.15.103\lib\net35\Microsoft.VisualStudio.Setup.Configuration.Interop.dll</HintPath>
+      <EmbedInteropTypes>True</EmbedInteropTypes>
+    </Reference>
     <Reference Include="Microsoft.VisualStudio.Shell.14.0, Version=14.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <HintPath>..\..\packages\Microsoft.VisualStudio.Shell.14.0.14.3.25407\lib\Microsoft.VisualStudio.Shell.14.0.dll</HintPath>
       <Private>True</Private>

src/GitHub.Exports/Services/VSServices.cs

@@ -8,6 +8,8 @@
 using GitHub.Logging;
 using GitHub.VisualStudio;
 using Microsoft.VisualStudio;
+using Microsoft.VisualStudio.Setup.Configuration;
+using Microsoft.VisualStudio.Shell;
 using Microsoft.VisualStudio.Shell.Interop;
 using Rothko;
 using Serilog;
@@ -147,6 +149,7 @@ void TryCleanupSolutionUserFiles(IOperatingSystem os, string repoPath, string sl
 
         const string RegistryRootKey = @"Software\Microsoft\VisualStudio";
         const string EnvVersionKey = "EnvVersion";
+        const string InstallationNamePrefix = "VisualStudio/";
         string GetVSVersion()
         {
             var version = typeof(Microsoft.VisualStudio.Shell.ActivityLog).Assembly.GetName().Version;
@@ -164,30 +167,9 @@ string GetVSVersion()
                 }
                 else
                 {
-                    var os = serviceProvider.TryGetService<IOperatingSystem>();
-                    var devenv = Path.GetDirectoryName(Process.GetCurrentProcess().MainModule.FileName);
-
-                    // C:\ProgramData\Microsoft\VisualStudio\Packages\_Instances
-                    var pathToInstallationData = Path.Combine(os.Environment.GetFolderPath(System.Environment.SpecialFolder.CommonApplicationData),
-                        "Microsoft", "VisualStudio", "Packages", "_Instances");
-
-                    var regexVersion = new Regex(@"""productDisplayVersion"":""([^""]+)""");
-                    var regexPath = new Regex(@"""installationPath"":""([^""]+)""");
-
-                    foreach (var dir in os.Directory.EnumerateDirectories(pathToInstallationData))
-                    {
-                        var data = os.File.ReadAllText(Path.Combine(dir, "state.json"), System.Text.Encoding.UTF8);
-                        if (regexPath.IsMatch(data) && regexVersion.IsMatch(data))
-                        {
-                            var path = regexPath.Match(data).Groups[1].Value;
-                            path = path.Replace("\\\\", "\\");
-                            if (devenv.StartsWith(path, StringComparison.OrdinalIgnoreCase))
-                            {
-                                var value = regexVersion.Match(data).Groups[1].Value;
-                                return value;
-                            }
-                        }
-                    }
+                    var setupConfiguration = new SetupConfiguration();
+                    var setupInstance = setupConfiguration.GetInstanceForCurrentProcess();
+                    return setupInstance.GetInstallationName().TrimPrefix(InstallationNamePrefix);
                 }
             }
             catch(Exception ex)

src/GitHub.Exports/packages.config

@@ -4,6 +4,7 @@
   <package id="LibGit2Sharp.NativeBinaries" version="1.0.164" targetFramework="net461" />
   <package id="Microsoft.VisualStudio.ComponentModelHost" version="14.0.25424" targetFramework="net461" />
   <package id="Microsoft.VisualStudio.OLE.Interop" version="7.10.6070" targetFramework="net461" />
+  <package id="Microsoft.VisualStudio.Setup.Configuration.Interop" version="1.15.103" targetFramework="net461" developmentDependency="true" />
   <package id="Microsoft.VisualStudio.Shell.14.0" version="14.3.25407" targetFramework="net461" />
   <package id="Microsoft.VisualStudio.Shell.Immutable.10.0" version="10.0.30319" targetFramework="net461" />
   <package id="Microsoft.VisualStudio.Shell.Interop" version="7.10.6071" targetFramework="net461" />