Merge pull request #724 from gep13/RemoveRedundantCode

Remove requirement on master branch existing

Author: JakeGinnivan

src/GitVersionCore.Tests/IntegrationTests/OtherScenarios.cs

@@ -30,6 +30,21 @@ public void DoNotBlowUpWhenMasterAndDevelopPointAtSameCommit()
             }
         }
 
+        [Test]
+        public void AllowNotHavingMaster()
+        {
+            using (var fixture = new EmptyRepositoryFixture(new Config()))
+            {
+                fixture.Repository.MakeACommit();
+                fixture.Repository.MakeATaggedCommit("1.0.0");
+                fixture.Repository.MakeACommit();
+                fixture.Repository.Checkout(fixture.Repository.CreateBranch("develop"));
+                fixture.Repository.Branches.Remove(fixture.Repository.Branches["master"]);
+
+                fixture.AssertFullSemver("1.1.0-unstable.1");
+            }
+        }
+
         [Test]
         public void DoNotBlowUpWhenDevelopAndFeatureBranchPointAtSameCommit()
         {

src/GitVersionCore/GitVersionFinder.cs

@@ -23,7 +23,6 @@ public SemanticVersion FindVersion(GitVersionContext context)
 
         void EnsureMainTopologyConstraints(GitVersionContext context)
         {
-            EnsureLocalBranchExists(context.Repository, "master");
             EnsureHeadIsNotDetached(context);
         }
 
@@ -40,16 +39,5 @@ void EnsureHeadIsNotDetached(GitVersionContext context)
                 context.CurrentCommit.Id.ToString(7));
             throw new WarningException(message);
         }
-
-        void EnsureLocalBranchExists(IRepository repository, string branchName)
-        {
-            if (repository.FindBranch(branchName) != null)
-            {
-                return;
-            }
-
-            var existingBranches = string.Format("'{0}'", string.Join("', '", repository.Branches.Select(x => x.CanonicalName)));
-            throw new WarningException(string.Format("This repository doesn't contain a branch named '{0}'. Please create one. Existing branches: {1}", branchName, existingBranches));
-        }
     }
 }