Remove dependency on "git" executable

src/GitVersion.App/GitVersionExecutor.cs

@@ -82,16 +82,13 @@ private int RunGitVersionTool(GitVersionOptions gitVersionOptions)
             var error = $"An unexpected error occurred:{PathHelper.NewLine}{exception}";
             this.log.Error(error);
 
-            this.log.Info("Attempting to show the current git graph (please include in issue): ");
-            this.log.Info("Showing max of 100 commits");
-
             try
             {
-                GitExtensions.DumpGraph(gitVersionOptions.WorkingDirectory, mess => this.log.Info(mess), 100);
+                GitExtensions.DumpGraphLog(logMessage => this.log.Info(logMessage));
             }
             catch (Exception dumpGraphException)
             {
-                this.log.Error("Couldn't dump the git graph due to the following error: " + dumpGraphException);
+                this.log.Error($"Couldn't dump the git graph due to the following error: {dumpGraphException}");
             }
             return 1;
         }
@@ -131,8 +128,7 @@ private bool HandleNonMainCommand(GitVersionOptions gitVersionOptions, out int e
         var workingDirectory = gitVersionOptions.WorkingDirectory;
         if (gitVersionOptions.Diag)
         {
-            this.log.Info("Dumping commit graph: ");
-            GitExtensions.DumpGraph(workingDirectory, mess => this.log.Info(mess), 100);
+            GitExtensions.DumpGraphLog(logMessage => this.log.Info(logMessage));
         }
 
         if (!Directory.Exists(workingDirectory))

src/GitVersion.Core.Tests/Extensions/GitToolsTestingExtensions.cs

@@ -30,6 +30,7 @@ public static ICommit CreateMockCommit()
         commit.When.Returns(when.AddSeconds(1));
         return commit;
     }
+
     public static IBranch CreateMockBranch(string name, params ICommit[] commits)
     {
         var branch = Substitute.For<IBranch>();
@@ -55,13 +56,13 @@ public static void DiscoverRepository(this IServiceProvider sp)
 
     public static IBranch FindBranch(this IGitRepository repository, string branchName)
         => repository.Branches.FirstOrDefault(branch => branch.Name.WithoutOrigin == branchName)
-            ?? throw new GitVersionException($"Branch {branchName} not found");
+           ?? throw new GitVersionException($"Branch {branchName} not found");
 
     public static void DumpGraph(this IGitRepository repository, Action<string>? writer = null, int? maxCommits = null)
-        => GitExtensions.DumpGraph(repository.Path, writer, maxCommits);
+        => DumpGraph(repository.Path, writer, maxCommits);
 
     public static void DumpGraph(this IRepository repository, Action<string>? writer = null, int? maxCommits = null)
-        => GitExtensions.DumpGraph(repository.ToGitRepository().Path, writer, maxCommits);
+        => DumpGraph(repository.ToGitRepository().Path, writer, maxCommits);
 
     public static GitVersionVariables GetVersion(this RepositoryFixtureBase fixture, IGitVersionConfiguration? configuration = null,
         IRepository? repository = null, string? commitId = null, bool onlyTrackedBranches = true, string? targetBranch = null)
@@ -173,4 +174,7 @@ private static IServiceProvider ConfigureServices(Action<IServiceCollection>? se
         servicesOverrides?.Invoke(services);
         return services.BuildServiceProvider();
     }
+
+    private static void DumpGraph(string workingDirectory, Action<string>? writer = null, int? maxCommits = null)
+        => GitTestExtensions.ExecuteGitCmd(GitExtensions.CreateGitLogArgs(maxCommits), workingDirectory, writer);
 }

src/GitVersion.Core/Core/GitVersionContextFactory.cs

@@ -29,7 +29,8 @@ public GitVersionContext Create(GitVersionOptions gitVersionOptions)
             currentBranch, gitVersionOptions.RepositoryInfo.CommitId, configuration.Ignore
         );
 
-        if (currentCommit is null) throw new GitVersionException("No commits found on the current branch.");
+        if (currentCommit is null)
+            throw new GitVersionException("No commits found on the current branch.");
 
         if (currentBranch.IsDetachedHead)
         {

src/GitVersion.Core/Extensions/GitExtensions.cs

@@ -1,28 +1,11 @@
-using GitVersion.Helpers;
-
 namespace GitVersion.Extensions;
 
 public static class GitExtensions
 {
-    public static void DumpGraph(string workingDirectory, Action<string>? writer = null, int? maxCommits = null)
+    public static void DumpGraphLog(Action<string>? writer = null, int? maxCommits = null)
     {
         var output = new StringBuilder();
-        try
-        {
-            ProcessHelper.Run(
-                o => output.AppendLine(o),
-                e => output.AppendLineFormat("ERROR: {0}", e),
-                null,
-                "git",
-                CreateGitLogArgs(maxCommits),
-                workingDirectory);
-        }
-        catch (FileNotFoundException exception) when (exception.FileName == "git")
-        {
-            output.AppendLine("Could not execute 'git log' due to the following error:");
-            output.AppendLine(exception.ToString());
-        }
-
+        output.AppendLine($"Please run `git {CreateGitLogArgs(maxCommits)}` to see the git graph. This can help you troubleshoot any issues.");
         if (writer != null)
         {
             writer(output.ToString());
@@ -36,6 +19,6 @@ public static void DumpGraph(string workingDirectory, Action<string>? writer = n
     public static string CreateGitLogArgs(int? maxCommits)
     {
         var commits = maxCommits != null ? $" -n {maxCommits}" : null;
-        return $@"log --graph --format=""%h %cr %d"" --decorate --date=relative --all --remotes=*{commits}";
+        return $"""log --graph --format="%h %cr %d" --decorate --date=relative --all --remotes=*{commits}""";
     }
 }

src/GitVersion.Core/PublicAPI.Shipped.txt

@@ -753,7 +753,7 @@ static GitVersion.Extensions.EnumerableExtensions.AddRange<T>(this System.Collec
 static GitVersion.Extensions.EnumerableExtensions.OnlyOrDefault<T>(this System.Collections.Generic.IEnumerable<T>! source) -> T?
 static GitVersion.Extensions.EnumerableExtensions.SingleOfType<T>(this System.Collections.IEnumerable! source) -> T
 static GitVersion.Extensions.GitExtensions.CreateGitLogArgs(int? maxCommits) -> string!
-static GitVersion.Extensions.GitExtensions.DumpGraph(string! workingDirectory, System.Action<string!>? writer = null, int? maxCommits = null) -> void
+static GitVersion.Extensions.GitExtensions.DumpGraphLog(System.Action<string!>? writer = null, int? maxCommits = null) -> void
 static GitVersion.Extensions.IncrementStrategyExtensions.ToVersionField(this GitVersion.IncrementStrategy strategy) -> GitVersion.VersionField
 static GitVersion.Extensions.ReadEmbeddedResourceExtensions.ReadAsStringFromEmbeddedResource(this string! resourceName, System.Reflection.Assembly! assembly) -> string!
 static GitVersion.Extensions.ReadEmbeddedResourceExtensions.ReadAsStringFromEmbeddedResource<T>(this string! resourceName) -> string!

src/GitVersion.Testing/Fixtures/RepositoryFixtureBase.cs

@@ -73,7 +73,7 @@ public void Remove(string branch)
         SequenceDiagram.Destroy(branch);
     }
 
-    public static void Init(string path, string branchName = "main") => GitTestExtensions.ExecuteGitCmd($"init {path} -b {branchName}");
+    public static void Init(string path, string branchName = "main") => GitTestExtensions.ExecuteGitCmd($"init {path} -b {branchName}", ".");
 
     public string MakeATaggedCommit(string tag)
     {
@@ -165,8 +165,8 @@ protected static Repository CreateNewRepository(string path, string branchName,
     /// </summary>
     public void MakeShallow()
     {
-        GitTestExtensions.ExecuteGitCmd($"-C {RepositoryPath} pull --depth 1");
-        GitTestExtensions.ExecuteGitCmd($"-C {RepositoryPath} gc --prune=all");
+        GitTestExtensions.ExecuteGitCmd($"-C {RepositoryPath} pull --depth 1", ".");
+        GitTestExtensions.ExecuteGitCmd($"-C {RepositoryPath} gc --prune=all", ".");
     }
 
     public void Fetch(string remote, FetchOptions? options = null)

src/GitVersion.Testing/GitTestExtensions.cs

@@ -69,7 +69,7 @@ public static Commit CreatePullRequestRef(this IRepository repository, string fr
         return commit;
     }
 
-    public static void ExecuteGitCmd(string gitCmd, Action<string>? writer = null)
+    public static void ExecuteGitCmd(string gitCmd, string workingDirectory, Action<string>? writer = null)
     {
         var output = new StringBuilder();
         try
@@ -80,7 +80,7 @@ public static void ExecuteGitCmd(string gitCmd, Action<string>? writer = null)
                 null,
                 "git",
                 gitCmd,
-                ".");
+                workingDirectory);
         }
         catch (FileNotFoundException exception) when (exception.FileName == "git")
         {

src/GitVersion.Testing/GitVersion.Testing.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
         <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     </PropertyGroup>
@@ -7,6 +7,5 @@
     </ItemGroup>
     <ItemGroup>
         <Compile Include="..\GitVersion.Core\Helpers\PathHelper.cs" Link="Helpers\PathHelper.cs" />
-        <Compile Include="..\GitVersion.Core\Helpers\ProcessHelper.cs" Link="Helpers\ProcessHelper.cs" />
     </ItemGroup>
 </Project>

src/GitVersion.Core/Helpers/ProcessHelper.cs → src/GitVersion.Testing/Helpers/ProcessHelper.cs

@@ -1,9 +1,9 @@
 using System.ComponentModel;
 using System.Runtime.InteropServices;
 
-namespace GitVersion.Helpers;
+namespace GitVersion.Testing;
 
-internal static class ProcessHelper
+public static class ProcessHelper
 {
     private static readonly object LockObject = new();
 

src/mark-shipped.ps1

@@ -1,3 +1,5 @@
+#! /usr/bin/env pwsh
+
 [CmdletBinding(PositionalBinding = $false)]
 param ()