Add VS extension updater

src/GitVersionTask/GitVersionTask.csproj

@@ -66,6 +66,7 @@
   <ItemGroup>
     <Compile Include="BuildLogger.cs" />
     <Compile Include="GenerateGitVersionInformation.cs" />
+    <Compile Include="UpdateVsixManifest.cs" />
     <Compile Include="GitVersionTaskBase.cs" />
     <Compile Include="WriteVersionInfoToBuildLog.cs" />
     <Compile Include="GetVersion.cs" />

src/GitVersionTask/NugetAssets/build/GitVersionTask.targets

@@ -49,6 +49,9 @@
   <UsingTask
       TaskName="GitVersionTask.WriteVersionInfoToBuildLog"
       AssemblyFile="$(GitVersionTaskLibrary)GitVersionTask.dll" />
+  <UsingTask
+      TaskName="GitVersionTask.UpdateVsixManifest"
+      AssemblyFile="$(GitVersionTaskLibrary)GitVersionTask.dll" />
 
   <Import Project="$(GitVersionCustomizeTargetFile)" Condition="'$(GitVersionCustomizeTargetFile)' != '' and Exists('$(GitVersionCustomizeTargetFile)')" />
 
@@ -138,6 +141,14 @@
 
   </Target>
 
+  <!-- Support for VSIX files -->
+  <Target Name="UpdateVsixManifest" BeforeTargets="CreateVsixContainer" Condition=" '$(CreateVsixContainer)' == 'true' ">
+    <UpdateVsixManifest
+      NoFetch="$(GitVersion_NoFetchEnabled)"
+      VsixManifest="$(IntermediateVsixManifest)"
+      SolutionDirectory="$(GitVersionPath)" />
+  </Target>
+
   <!--Support for ncrunch-->
   <ItemGroup Condition=" $(NCrunch) != '' ">
     <None Include="$(GitVersionTaskDir)GitVersionTask.dll">

src/GitVersionTask/UpdateVsixManifest.cs

@@ -0,0 +1,74 @@
+namespace GitVersionTask
+{
+    using System;
+    using System.ComponentModel;
+    using System.Xml.Linq;
+    using System.Linq;
+    using GitVersion;
+    using Microsoft.Build.Framework;
+
+    public class UpdateVsixManifest : GitVersionTaskBase
+    {
+        TaskLogger logger;
+
+        public UpdateVsixManifest()
+        {
+            logger = new TaskLogger(this);
+            Logger.SetLoggers(this.LogDebug, this.LogInfo, this.LogWarning, s => this.LogError(s));
+        }
+
+        [Required]
+        public string VsixManifest { get; set; }
+
+        [Required]
+        public string SolutionDirectory { get; set; }
+
+        public bool NoFetch { get; set; }
+
+        public override bool Execute()
+        {
+            try
+            {
+                VersionVariables variables;
+                if (ExecuteCore.TryGetVersion(SolutionDirectory, out variables, NoFetch, new Authentication()))
+                {
+                    UpdateManifestFile(variables);
+                }
+
+                return true;
+            }
+            catch (WarningException errorException)
+            {
+                logger.LogWarning(errorException.Message);
+                return true;
+            }
+            catch (Exception exception)
+            {
+                logger.LogError("Error occurred: " + exception);
+                return false;
+            }
+            finally
+            {
+                Logger.Reset();
+            }
+        }
+
+        private void UpdateManifestFile(VersionVariables variables)
+        {
+            const string ns = "http://schemas.microsoft.com/developer/vsx-schema/2011";
+
+            var version = variables.AssemblySemFileVer;
+            var doc = XDocument.Load(VsixManifest);
+            var identity = doc
+                .Root
+                .Descendants(XName.Get("Identity", ns))
+                .Single();
+
+            identity.Attribute("Version").Value = version;
+
+            doc.Save(VsixManifest);
+
+            Log.LogMessage($"Updated {VsixManifest} version to {version}");
+        }
+    }
+}