added CustomLabeller with tests

CustomLabeller allows generate label with plain cs code

Author: Sergii Lutai

project/UnitTests/Core/Label/CustomLabellerTest.cs

@@ -0,0 +1,92 @@
+using Exortech.NetReflector;
+using NUnit.Framework;
+using ThoughtWorks.CruiseControl.Core.Label;
+
+namespace ThoughtWorks.CruiseControl.UnitTests.Core.Label
+{
+	[TestFixture]
+	public class CustomLabellerTest : IntegrationFixture
+	{
+		private CustomLabeller labeller;
+
+        private string exampleCode = @"
+
+            if (
+                integrationResult != null
+                && integrationResult.LastIntegration != null
+                && !integrationResult.LastIntegration.IsInitial()                
+                )
+            {
+                if (integrationResult.LastIntegration.Status == ThoughtWorks.CruiseControl.Remote.IntegrationStatus.Success)
+                {
+                    System.Version lastVersion = System.Version.Parse(integrationResult.LastIntegration.Label);
+                    System.Version nextVersion = new System.Version(lastVersion.Major, lastVersion.Minor, lastVersion.Build, lastVersion.Revision + 1);
+                    ret = nextVersion.ToString();
+                }
+                else
+                {
+                    ret = integrationResult.LastIntegration.Label;
+                }
+            }
+            else
+            {
+                ret = new System.Version(1, 1, 1, 1).ToString();
+            }
+
+
+";
+
+        [SetUp]
+		public void SetUp()
+		{
+			labeller = new CustomLabeller();
+        }
+
+        [Test]
+        public void GenerateInitialLabelWoCode()
+        {
+            Assert.AreEqual("0.0.0.0", labeller.Generate(InitialIntegrationResult()));
+        }
+
+        [Test]
+        public void GenerateLabelWoCode()
+        {
+            Assert.AreEqual("0.0.0.0", labeller.Generate(SuccessfulResult("35")));
+        }
+
+        [Test]
+		public void GenerateNextLabel()
+		{
+            labeller.CsCode = @"ret = ""somelabel"";";
+            Assert.AreEqual("somelabel", labeller.Generate(SuccessfulResult("previouslabel")));
+		}
+
+        [Test]
+        public void GenerateInitialLabel()
+        {
+            labeller.CsCode = @"ret = ""somelabel"";";
+            Assert.AreEqual("somelabel", labeller.Generate(SuccessfulResult("previouslabel")));
+        }
+
+        [Test]
+        public void GenerateInitialLabelWithExampleCode()
+        {
+            labeller.CsCode = exampleCode;
+            Assert.AreEqual("1.1.1.1", labeller.Generate(InitialIntegrationResult()));
+        }
+
+        [Test]
+        public void GenerateNextLabelWithExampleCode()
+        {
+            labeller.CsCode = exampleCode;
+            Assert.AreEqual("1.2.3.5", labeller.Generate(SuccessfulResult("1.2.3.4")));
+        }
+
+        [Test]
+        public void GenerateSameLabelWithExampleCode()
+        {
+            labeller.CsCode = exampleCode;
+            Assert.AreEqual("1.2.3.4", labeller.Generate(FailedResult("1.2.3.4")));
+        }
+    }
+}

project/UnitTests/UnitTests.csproj

@@ -376,6 +376,7 @@
     <Compile Include="Core\Extensions\IntegrationPerformanceCountersExtensionTests.cs" />
     <Compile Include="Core\Extensions\DiskSpaceMonitorExtensionTests.cs" />
     <Compile Include="Core\Extensions\IntegrationRequestThrottleExtensionTests.cs" />
+    <Compile Include="Core\Label\CustomLabellerTest.cs" />
     <Compile Include="Core\Publishers\ConditionalPublisherTests.cs" />
     <Compile Include="Core\Publishers\ManifestGeneratorTests.cs" />
     <Compile Include="Core\Publishers\ManifestImporterTests.cs" />

project/core/core.csproj

@@ -372,6 +372,7 @@
     <Compile Include="label\DateLabeller.cs">
       <SubType>Code</SubType>
     </Compile>
+    <Compile Include="label\CustomLabeller.cs" />
     <Compile Include="label\DefaultLabeller.cs">
       <SubType>Code</SubType>
     </Compile>

project/core/label/CustomLabeller.cs

@@ -0,0 +1,91 @@
+using System;
+using System.Text.RegularExpressions;
+using Exortech.NetReflector;
+using ThoughtWorks.CruiseControl.Remote;
+using System.Globalization;
+using Microsoft.CSharp;
+using System.CodeDom.Compiler;
+using System.Reflection;
+
+namespace ThoughtWorks.CruiseControl.Core.Label
+{
+    /// <summary>
+    /// <para>
+    /// Allows CCNet create custom code-generated labels
+    /// </para>
+    /// <para>
+    /// You can do this by specifying your own configuration of the default labeller in your project.
+    /// </para>
+    /// </summary>
+    /// <title>Custom Labeller</title>
+    /// <version>1.0</version>
+    /// <example>
+    /// <code>
+    /// &lt;labeller type="customlabeller"&gt;
+    /// &lt;cscode&gt;1&lt;/cscode&gt;
+    /// &lt;/labeller&gt;
+    /// </code>
+    /// </example>
+    [ReflectorType("customlabeller")]
+    public class CustomLabeller
+        : LabellerBase
+    {
+        /// <summary>
+        /// Generates the specified integration result.	
+        /// </summary>
+        /// <param name="integrationResult">The integration result.</param>
+        /// <returns></returns>
+        /// <remarks></remarks>
+        public override string Generate(IIntegrationResult integrationResult)
+        {
+            MethodInfo method = this.CreateFunction(this.CsCode);
+            string ret = (string)method.Invoke(null, new object[1] { integrationResult });
+            return ret;
+        }
+
+        [ReflectorProperty("cscode", Required = true)]
+        public string CsCode { get; set; }
+
+        private string CSCodeWrapper
+        {
+            get
+            {
+                return @"
+
+using System;
+using ThoughtWorks.CruiseControl.Core;
+using ThoughtWorks.CruiseControl.Remote;
+            
+namespace CustomLabelerGeneratorUserFunctions
+{                
+    public class CustomLabelerGenerator
+    {                
+        public static string Generate(ThoughtWorks.CruiseControl.Core.IIntegrationResult integrationResult)
+        {
+            string ret = ""0.0.0.0"";
+            <customCodeForReplace>
+            return ret;
+        }
+    }
+}
+";
+            }
+        }
+
+        public MethodInfo CreateFunction(string function)
+        {
+            string finalCode = CSCodeWrapper.Replace("<customCodeForReplace>", function);
+
+            CSharpCodeProvider provider = new CSharpCodeProvider();
+            var parameters = new CompilerParameters();
+            parameters.ReferencedAssemblies.Add(Assembly.GetExecutingAssembly().Location);
+            parameters.ReferencedAssemblies.Add(typeof(ThoughtWorks.CruiseControl.Remote.IntegrationStatus).Assembly.Location);
+            parameters.GenerateInMemory = true;
+            parameters.GenerateExecutable = false;
+            CompilerResults results = provider.CompileAssemblyFromSource(parameters, finalCode);
+
+            Type binaryFunction = results.CompiledAssembly.GetType("CustomLabelerGeneratorUserFunctions.CustomLabelerGenerator");
+            return binaryFunction.GetMethod("Generate");
+        }
+    }
+}