Add ChocolateyPackageVersion to VersionOracle

Fixes #275

Author: AArnott

src/NerdBank.GitVersioning.Tests/VersionOracleTests.cs

@@ -177,6 +177,7 @@ public void SemVerStableNonPublicVersion()
         Assert.True(Regex.IsMatch(oracle.SemVer1, @"^2.3.1-[^g]{10}$"));
         Assert.True(Regex.IsMatch(oracle.SemVer2, @"^2.3.1-[^g]{10}$"));
         Assert.True(Regex.IsMatch(oracle.NuGetPackageVersion, @"^2.3.1-g[a-f0-9]{10}$"));
+        Assert.True(Regex.IsMatch(oracle.ChocolateyPackageVersion, @"^2.3.1-g[a-f0-9]{10}$"));
     }
 
     [Fact]

src/NerdBank.GitVersioning/VersionOracle.cs

@@ -337,6 +337,14 @@ public IDictionary<string, string> CloudBuildVersionVars
         /// </summary>
         public string NuGetPackageVersion => this.VersionOptions?.NuGetPackageVersionOrDefault.SemVerOrDefault == 1 ? this.NuGetSemVer1 : this.SemVer2;
 
+        /// <summary>
+        /// Gets the version to use for Chocolatey packages.
+        /// </summary>
+        /// <remarks>
+        /// This always returns the NuGet subset of SemVer 1.0.
+        /// </remarks>
+        public string ChocolateyPackageVersion => this.NuGetSemVer1;
+
         /// <summary>
         /// Gets the version to use for NPM packages.
         /// </summary>