Extract GitVersion Configuration into a separate project

The major change in this commit is the extraction of the GitVersion configuration-related code into a separate project. This includes branch configuration, GitFlow and GitHub workflows, caching strategies and modules. In the refactored structure, other projects now reference this configuration project. The definition of the `IBranchConfiguration` has changed and includes a new method for providing an empty configuration. Some necessary code and file shifting has occurred to support this new structure.

Author: arturcic

src/GitVersion.App.Tests/GitVersion.App.Tests.csproj

@@ -4,6 +4,7 @@
         <PackageReference Include="Microsoft.CodeAnalysis.CSharp" />
     </ItemGroup>
     <ItemGroup>
+        <ProjectReference Include="..\GitVersion.Configuration\GitVersion.Configuration.csproj" />
         <ProjectReference Include="..\GitVersion.Core\GitVersion.Core.csproj" />
         <ProjectReference Include="..\GitVersion.App\GitVersion.App.csproj" />
     </ItemGroup>

src/GitVersion.App/GitVersion.App.csproj

@@ -27,6 +27,7 @@
 
     <ItemGroup>
         <ProjectReference Include="..\GitVersion.BuildAgents\GitVersion.BuildAgents.csproj" />
+        <ProjectReference Include="..\GitVersion.Configuration\GitVersion.Configuration.csproj" />
         <ProjectReference Include="..\GitVersion.LibGit2Sharp\GitVersion.LibGit2Sharp.csproj" />
         <ProjectReference Include="..\GitVersion.Core\GitVersion.Core.csproj" />
         <ProjectReference Include="..\GitVersion.Output\GitVersion.Output.csproj" />

src/GitVersion.App/Program.cs

@@ -1,4 +1,5 @@
 using GitVersion.Agents;
+using GitVersion.Configuration;
 using GitVersion.Extensions;
 using GitVersion.Output;
 using Microsoft.Extensions.Configuration;
@@ -26,6 +27,7 @@ private IHostBuilder CreateHostBuilder(string[] args) =>
                 services.AddModule(new GitVersionCoreModule());
                 services.AddModule(new GitVersionLibGit2SharpModule());
                 services.AddModule(new GitVersionBuildAgentsModule());
+                services.AddModule(new GitVersionConfigurationModule());
                 services.AddModule(new GitVersionOutputModule());
                 services.AddModule(new GitVersionAppModule());
 

src/GitVersion.Core/Configuration/BranchConfiguration.cs renamed to src/GitVersion.Configuration/BranchConfiguration.cs

@@ -98,4 +98,11 @@ public virtual IBranchConfiguration Inherit(IBranchConfiguration configuration)
             PreReleaseWeight = PreReleaseWeight ?? configuration.PreReleaseWeight
         };
     }
+
+    public IBranchConfiguration Empty() => new BranchConfiguration
+    {
+        RegularExpression = string.Empty,
+        Label = ConfigurationConstants.BranchNamePlaceholder,
+        Increment = IncrementStrategy.Inherit
+    };
 }