Introducing a new branch related property with name track-merge-message

BREAKING_CHANGES.md

@@ -22,6 +22,7 @@
 *   When overriding the configuration with e.g. GitVersion.yaml the software distinguishes between properties who are not existent and properties who are `null`. This is especially important if the user wants to define branch related configuration which are marked with `increment` strategy `Inherit`.
 *   Following root configuration properties have been removed:
     *   continuous-delivery-fallback-tag
+*   A new branch related property with name `track-merge-message` has been introduced. Consider we have a `main` branch and a `release/1.0.0` branch and merge changes from `release/1.0.0` to the main branch. In this scenario the merge message will be interpreted as a next version `1.0.0` when `track-merge-message` is set to `true` otherwise `0.0.1`.
 
 ## v5.0.0
 

docs/input/docs/reference/configuration.md

@@ -163,6 +163,7 @@ label: '{BranchName}'
 increment: Inherit
 prevent-increment-of-merged-branch-version: false
 track-merge-target: false
+track-merge-message: true
 commit-message-incrementing: Enabled
 regex: ''
 tracks-release-branches: false
@@ -602,6 +603,13 @@ Strategy which will look for tagged merge commits directly off the current
 branch. For example `develop` → `release/1.0.0` → merge into `main` and tag
 `1.0.0`. The tag is _not_ on develop, but develop should be version `1.0.0` now.
 
+### track-merge-message
+
+This property is a branch related property and gives the user the possibility to control the behavior of whether the merge
+commit message will be interpreted as a next version or not. Consider we have a main branch and a `release/1.0.0` branch and
+merge changes from `release/1.0.0` to the `main` branch. If `track-merge-message` is set to `true` then the next version will
+be `1.0.0` otherwise `0.0.1`.
+
 ### tracks-release-branches
 
 Indicates this branch config represents develop in GitFlow.

src/GitVersion.Core.Tests/Configuration/ConfigurationProviderTests.CanWriteOutEffectiveConfiguration.approved.txt

@@ -121,6 +121,7 @@ label: '{BranchName}'
 increment: Inherit
 prevent-increment-of-merged-branch-version: false
 track-merge-target: false
+track-merge-message: true
 commit-message-incrementing: Enabled
 regex: ''
 tracks-release-branches: false

src/GitVersion.Core.Tests/IntegrationTests/MainScenarios.cs

@@ -371,4 +371,39 @@ public void PreventDecrementationOfVersionsOnTheDevelopmentBranch()
         // ✅ succeeds as expected
         fixture.AssertFullSemver("1.1.0-alpha.3", configurationBuilder.Build());
     }
+
+    [TestCase(true, "1.1.0+0")]
+    [TestCase(false, "1.0.1+4")]
+    public void TrackMergeMessageShouldBeConsideredOnTheMainBranch(bool trackMergeMessage, string expectedSemanticVersion)
+    {
+        using EmptyRepositoryFixture fixture = new("main");
+
+        var configuration = GitFlowConfigurationBuilder.New
+            .WithBranch("main", branchBuilder => branchBuilder.WithTrackMergeMessage(trackMergeMessage))
+            .Build();
+
+        fixture.MakeATaggedCommit("1.0.0");
+        fixture.BranchTo("release/1.1.0");
+        fixture.MakeACommit();
+        fixture.MakeACommit();
+
+        // ✅ succeeds as expected
+        fixture.AssertFullSemver("1.1.0-beta.1+2", configuration);
+
+        fixture.Checkout("main");
+        fixture.MakeACommit();
+
+        // ✅ succeeds as expected
+        fixture.AssertFullSemver("1.0.1+1", configuration);
+
+        fixture.MergeNoFF("release/1.1.0");
+
+        // ✅ succeeds as expected
+        fixture.AssertFullSemver(expectedSemanticVersion, configuration);
+
+        fixture.Remove("release/1.0.0");
+
+        // ✅ succeeds as expected
+        fixture.AssertFullSemver(expectedSemanticVersion, configuration);
+    }
 }

src/GitVersion.Core/Configuration/BranchConfiguration.cs

@@ -17,6 +17,7 @@ public BranchConfiguration(BranchConfiguration branchConfiguration)
         PreventIncrementOfMergedBranchVersion = branchConfiguration.PreventIncrementOfMergedBranchVersion;
         LabelNumberPattern = branchConfiguration.LabelNumberPattern;
         TrackMergeTarget = branchConfiguration.TrackMergeTarget;
+        TrackMergeMessage = branchConfiguration.TrackMergeMessage;
         CommitMessageIncrementing = branchConfiguration.CommitMessageIncrementing;
         TracksReleaseBranches = branchConfiguration.TracksReleaseBranches;
         Regex = branchConfiguration.Regex;
@@ -49,6 +50,9 @@ public BranchConfiguration(BranchConfiguration branchConfiguration)
     [YamlMember(Alias = "track-merge-target")]
     public bool? TrackMergeTarget { get; set; }
 
+    [YamlMember(Alias = "track-merge-message")]
+    public bool? TrackMergeMessage { get; set; }
+
     [YamlMember(Alias = "commit-message-incrementing")]
     public CommitMessageIncrementMode? CommitMessageIncrementing { get; set; }
 
@@ -92,6 +96,7 @@ public BranchConfiguration Inherit(BranchConfiguration? parentConfig)
         result.PreventIncrementOfMergedBranchVersion ??= parentConfig.PreventIncrementOfMergedBranchVersion;
         result.LabelNumberPattern ??= parentConfig.LabelNumberPattern;
         result.TrackMergeTarget ??= parentConfig.TrackMergeTarget;
+        result.TrackMergeMessage ??= parentConfig.TrackMergeMessage;
         result.CommitMessageIncrementing ??= parentConfig.CommitMessageIncrementing;
         result.Regex ??= parentConfig.Regex;
         result.SourceBranches ??= parentConfig.SourceBranches;

src/GitVersion.Core/Configuration/BranchConfigurationBuilder.cs

@@ -13,6 +13,7 @@ public class BranchConfigurationBuilder
     private bool? preventIncrementOfMergedBranchVersion;
     private string? labelNumberPattern;
     private bool? trackMergeTarget;
+    private bool? trackMergeMessage;
     private CommitMessageIncrementMode? commitMessageIncrementing;
     private string? regex;
     private HashSet<string>? sourceBranches;
@@ -68,6 +69,12 @@ public virtual BranchConfigurationBuilder WithTrackMergeTarget(bool? value)
         return this;
     }
 
+    public virtual BranchConfigurationBuilder WithTrackMergeMessage(bool? value)
+    {
+        this.trackMergeMessage = value;
+        return this;
+    }
+
     public virtual BranchConfigurationBuilder WithCommitMessageIncrementing(CommitMessageIncrementMode? value)
     {
         this.commitMessageIncrementing = value;
@@ -137,6 +144,7 @@ public virtual BranchConfigurationBuilder WithConfiguration(BranchConfiguration
         WithPreventIncrementOfMergedBranchVersion(value.PreventIncrementOfMergedBranchVersion);
         WithLabelNumberPattern(value.LabelNumberPattern);
         WithTrackMergeTarget(value.TrackMergeTarget);
+        WithTrackMergeMessage(value.TrackMergeMessage);
         WithCommitMessageIncrementing(value.CommitMessageIncrementing);
         WithRegex(value.Regex);
         WithTracksReleaseBranches(value.TracksReleaseBranches);
@@ -159,6 +167,7 @@ public BranchConfiguration Build()
             Regex = regex,
             TracksReleaseBranches = tracksReleaseBranches,
             TrackMergeTarget = trackMergeTarget,
+            TrackMergeMessage = trackMergeMessage,
             CommitMessageIncrementing = commitMessageIncrementing,
             IsMainline = isMainline,
             IsReleaseBranch = isReleaseBranch,

src/GitVersion.Core/Configuration/ConfigurationBuilderBase.cs

@@ -31,6 +31,7 @@ internal abstract class ConfigurationBuilderBase<TConfigurationBuilder>
     private bool? preventIncrementOfMergedBranchVersion;
     private string? labelNumberPattern;
     private bool? trackMergeTarget;
+    private bool? trackMergeMessage;
     private CommitMessageIncrementMode? commitMessageIncrementing;
     private string? regex;
     private HashSet<string>? sourceBranches;
@@ -207,6 +208,12 @@ public virtual TConfigurationBuilder WithTrackMergeTarget(bool? value)
         return (TConfigurationBuilder)this;
     }
 
+    public virtual TConfigurationBuilder WithTrackMergeMessage(bool? value)
+    {
+        this.trackMergeMessage = value;
+        return (TConfigurationBuilder)this;
+    }
+
     public virtual TConfigurationBuilder WithCommitMessageIncrementing(CommitMessageIncrementMode? value)
     {
         this.commitMessageIncrementing = value;
@@ -296,6 +303,7 @@ public virtual TConfigurationBuilder WithConfiguration(GitVersionConfiguration v
         WithPreventIncrementOfMergedBranchVersion(value.PreventIncrementOfMergedBranchVersion);
         WithLabelNumberPattern(value.LabelNumberPattern);
         WithTrackMergeTarget(value.TrackMergeTarget);
+        WithTrackMergeMessage(value.TrackMergeMessage);
         WithCommitMessageIncrementing(value.CommitMessageIncrementing);
         WithRegex(value.Regex);
         WithTracksReleaseBranches(value.TracksReleaseBranches);
@@ -343,6 +351,7 @@ public virtual GitVersionConfiguration Build()
             Regex = this.regex,
             TracksReleaseBranches = this.tracksReleaseBranches,
             TrackMergeTarget = this.trackMergeTarget,
+            TrackMergeMessage = this.trackMergeMessage,
             CommitMessageIncrementing = this.commitMessageIncrementing,
             IsMainline = this.isMainline,
             IsReleaseBranch = this.isReleaseBranch,

src/GitVersion.Core/Configuration/ConfigurationExtensions.cs

@@ -1,7 +1,6 @@
 using System.Text.RegularExpressions;
 using GitVersion.Extensions;
 using GitVersion.Logging;
-using GitVersion.VersionCalculation;
 
 namespace GitVersion.Configuration;
 
@@ -56,32 +55,10 @@ private static IEnumerable<BranchConfiguration> GetBranchConfigurations(GitVersi
     public static BranchConfiguration GetFallbackBranchConfiguration(this GitVersionConfiguration configuration)
     {
         BranchConfiguration result = new(configuration);
-        result.Name ??= "fallback";
-        result.Regex ??= "";
-        result.Label ??= "{BranchName}";
-        result.VersioningMode ??= VersioningMode.ContinuousDelivery;
-        result.PreventIncrementOfMergedBranchVersion ??= false;
-        result.TrackMergeTarget ??= false;
-        result.TracksReleaseBranches ??= false;
-        result.IsReleaseBranch ??= false;
-        result.IsMainline ??= false;
-        result.CommitMessageIncrementing ??= CommitMessageIncrementMode.Enabled;
-        if (result.Increment == IncrementStrategy.Inherit)
-        {
-            result.Increment = IncrementStrategy.None;
-        }
+        if (result.Increment == IncrementStrategy.Inherit) result.Increment = IncrementStrategy.None;
         return result;
     }
 
-    private static BranchConfiguration? ForBranch(GitVersionConfiguration configuration, string branchName)
-    {
-        var matches = configuration.Branches
-            .Where(b => b.Value.Regex != null && Regex.IsMatch(branchName, b.Value.Regex, RegexOptions.IgnoreCase))
-            .ToArray();
-
-        return matches.Select(kvp => kvp.Value).FirstOrDefault();
-    }
-
     public static bool IsReleaseBranch(this GitVersionConfiguration configuration, string branchName) => configuration.GetBranchConfiguration(branchName).IsReleaseBranch ?? false;
 
     public static string GetBranchSpecificTag(this EffectiveConfiguration configuration, ILog log, string? branchFriendlyName, string? branchNameOverride)

src/GitVersion.Core/Configuration/EffectiveConfiguration.cs

@@ -48,6 +48,7 @@ public EffectiveConfiguration(GitVersionConfiguration configuration, BranchConfi
         PreventIncrementOfMergedBranchVersion = currentBranchConfig.PreventIncrementOfMergedBranchVersion ?? false;
         LabelNumberPattern = currentBranchConfig.LabelNumberPattern;
         TrackMergeTarget = currentBranchConfig.TrackMergeTarget ?? false;
+        TrackMergeMessage = currentBranchConfig.TrackMergeMessage ?? true;
         MajorVersionBumpMessage = configuration.MajorVersionBumpMessage;
         MinorVersionBumpMessage = configuration.MinorVersionBumpMessage;
         PatchVersionBumpMessage = configuration.PatchVersionBumpMessage;
@@ -155,6 +156,8 @@ protected EffectiveConfiguration(AssemblyVersioningScheme assemblyVersioningSche
 
     public bool TrackMergeTarget { get; }
 
+    public bool TrackMergeMessage { get; }
+
     public string? MajorVersionBumpMessage { get; }
 
     public string? MinorVersionBumpMessage { get; }

src/GitVersion.Core/Configuration/GitFlowConfigurationBuilder.cs

@@ -29,6 +29,7 @@ private GitFlowConfigurationBuilder()
             CommitMessageIncrementing = CommitMessageIncrementMode.Enabled,
             PreventIncrementOfMergedBranchVersion = false,
             TrackMergeTarget = false,
+            TrackMergeMessage = true,
             TracksReleaseBranches = false,
             IsReleaseBranch = false,
             IsMainline = false

src/GitVersion.Core/Configuration/GitHubFlowConfigurationBuilder.cs

@@ -29,6 +29,7 @@ private GitHubFlowConfigurationBuilder()
             CommitMessageIncrementing = CommitMessageIncrementMode.Enabled,
             PreventIncrementOfMergedBranchVersion = false,
             TrackMergeTarget = false,
+            TrackMergeMessage = true,
             TracksReleaseBranches = false,
             IsReleaseBranch = false,
             IsMainline = false

src/GitVersion.Core/PublicAPI.Unshipped.txt

@@ -107,6 +107,8 @@ GitVersion.Configuration.BranchConfiguration.Regex.get -> string?
 GitVersion.Configuration.BranchConfiguration.Regex.set -> void
 GitVersion.Configuration.BranchConfiguration.SourceBranches.get -> System.Collections.Generic.HashSet<string!>?
 GitVersion.Configuration.BranchConfiguration.SourceBranches.set -> void
+GitVersion.Configuration.BranchConfiguration.TrackMergeMessage.get -> bool?
+GitVersion.Configuration.BranchConfiguration.TrackMergeMessage.set -> void
 GitVersion.Configuration.BranchConfiguration.TrackMergeTarget.get -> bool?
 GitVersion.Configuration.BranchConfiguration.TrackMergeTarget.set -> void
 GitVersion.Configuration.BranchConfiguration.TracksReleaseBranches.get -> bool?
@@ -168,6 +170,7 @@ GitVersion.Configuration.EffectiveConfiguration.PreReleaseWeight.get -> int
 GitVersion.Configuration.EffectiveConfiguration.PreventIncrementOfMergedBranchVersion.get -> bool
 GitVersion.Configuration.EffectiveConfiguration.SemanticVersionFormat.get -> GitVersion.SemanticVersionFormat
 GitVersion.Configuration.EffectiveConfiguration.SemanticVersionFormat.set -> void
+GitVersion.Configuration.EffectiveConfiguration.TrackMergeMessage.get -> bool
 GitVersion.Configuration.EffectiveConfiguration.TrackMergeTarget.get -> bool
 GitVersion.Configuration.EffectiveConfiguration.TracksReleaseBranches.get -> bool
 GitVersion.Configuration.EffectiveConfiguration.UpdateBuildNumber.get -> bool
@@ -1245,6 +1248,7 @@ virtual GitVersion.Configuration.BranchConfigurationBuilder.WithPreventIncrement
 virtual GitVersion.Configuration.BranchConfigurationBuilder.WithRegex(string? value) -> GitVersion.Configuration.BranchConfigurationBuilder!
 virtual GitVersion.Configuration.BranchConfigurationBuilder.WithSourceBranches(System.Collections.Generic.IEnumerable<string!>? values) -> GitVersion.Configuration.BranchConfigurationBuilder!
 virtual GitVersion.Configuration.BranchConfigurationBuilder.WithSourceBranches(params string![]? values) -> GitVersion.Configuration.BranchConfigurationBuilder!
+virtual GitVersion.Configuration.BranchConfigurationBuilder.WithTrackMergeMessage(bool? value) -> GitVersion.Configuration.BranchConfigurationBuilder!
 virtual GitVersion.Configuration.BranchConfigurationBuilder.WithTrackMergeTarget(bool? value) -> GitVersion.Configuration.BranchConfigurationBuilder!
 virtual GitVersion.Configuration.BranchConfigurationBuilder.WithTracksReleaseBranches(bool? value) -> GitVersion.Configuration.BranchConfigurationBuilder!
 virtual GitVersion.Configuration.BranchConfigurationBuilder.WithVersioningMode(GitVersion.VersionCalculation.VersioningMode? value) -> GitVersion.Configuration.BranchConfigurationBuilder!

src/GitVersion.Core/VersionCalculation/BaseVersionCalculators/MergeMessageVersionStrategy.cs

@@ -25,7 +25,7 @@ public MergeMessageVersionStrategy(ILog log, Lazy<GitVersionContext> versionCont
 
     public override IEnumerable<BaseVersion> GetBaseVersions(EffectiveBranchConfiguration configuration)
     {
-        if (Context.CurrentBranch.Commits == null || Context.CurrentCommit == null)
+        if (Context.CurrentBranch.Commits == null || Context.CurrentCommit == null || !configuration.Value.TrackMergeMessage)
             return Enumerable.Empty<BaseVersion>();
 
         var commitsPriorToThan = Context.CurrentBranch.Commits.GetCommitsPriorTo(Context.CurrentCommit.When);

src/GitVersion.Core/VersionCalculation/EffectiveBranchConfigurationFinder.cs

@@ -46,8 +46,7 @@ private IEnumerable<EffectiveBranchConfiguration> GetEffectiveConfigurationsRecu
                 // Because the actual branch is marked with the inherit increment strategy we need to either skip the iteration or go further
                 // while inheriting from the fallback branch configuration. This behavior is configurable via the increment settings of the configuration.
                 var fallbackBranchConfiguration = configuration.GetFallbackBranchConfiguration();
-                var skipTraversingOfOrphanedBranches = fallbackBranchConfiguration.Increment == null
-                    || fallbackBranchConfiguration.Increment == IncrementStrategy.Inherit;
+                var skipTraversingOfOrphanedBranches = fallbackBranchConfiguration.Increment == null;
                 this.log.Info(
                     $"An orphaned branch '{branch}' has been detected and will be skipped={skipTraversingOfOrphanedBranches}."
                 );

src/GitVersion.Testing/Fixtures/RepositoryFixtureBase.cs

@@ -65,6 +65,8 @@ protected virtual void Dispose(bool disposing)
 
     public void Checkout(string branch) => Commands.Checkout(Repository, branch);
 
+    public void Remove(string branch) => Repository.Branches.Remove(branch);
+
     public static void Init(string path, string branchName) => GitTestExtensions.ExecuteGitCmd($"init {path} -b {branchName}");
 
     public void MakeATaggedCommit(string tag)