fix: fix error when using --use-version

.autover/changes/27ad7e46-2b02-4a45-aa84-7680e019ca91.json

@@ -0,0 +1,11 @@
+{
+  "Projects": [
+    {
+      "Name": "AutoVer",
+      "Type": "Patch",
+      "ChangelogMessages": [
+        "Fixed an issue when --use-version has the same version as the csproj and no version update is made. Previously, this would error out with a non-zero exit code."
+      ]
+    }
+  ]
+}

src/AutoVer/Commands/VersionCommand.cs

@@ -140,7 +140,8 @@ public async Task ExecuteAsync(
 
         if (!optionNoCommit)
         {
-            gitHandler.CommitChanges(userConfiguration, versionHandler.GetNewReleaseName(userConfiguration));
+            if (gitHandler.HasStagedChanges(userConfiguration))
+                gitHandler.CommitChanges(userConfiguration, versionHandler.GetNewReleaseName(userConfiguration));
 
             if (!optionNoTag)
             {

src/AutoVer/Services/GitHandler.cs

@@ -61,6 +61,17 @@ public void StageChanges(UserConfiguration userConfiguration, string currentPath
         }
     }
 
+    public bool HasStagedChanges(UserConfiguration userConfiguration)
+    {
+        using (var gitRepository = new Repository(userConfiguration.GitRoot))
+        {
+            var headTree = gitRepository.Head.Tip.Tree;
+            var changes = gitRepository.Diff.Compare<TreeChanges>(headTree, DiffTargets.Index);
+
+            return changes.Count > 0;
+        }
+    }
+
     public void CommitChanges(UserConfiguration userConfiguration, string commitMessage)
     {
         using var gitRepository = new Repository(userConfiguration.GitRoot);

src/AutoVer/Services/IGitHandler.cs

@@ -14,4 +14,5 @@ public interface IGitHandler
     List<ConventionalCommit> GetVersionCommits(UserConfiguration userConfiguration, string? lastVersionTag = null);
     string GetFileByTag(string gitRoot, string tagName, string filePath);
     List<GitFile> GetFolderByTag(string gitRoot, string tagName, string folderPath);
+    bool HasStagedChanges(UserConfiguration userConfiguration);
 }

test/AutoVer.UnitTests/AutoVer.UnitTests.csproj

@@ -8,8 +8,8 @@
     </PropertyGroup>
 
     <ItemGroup>
-      <PackageReference Include="LibGit2Sharp" Version="0.30.0" />
-      <PackageReference Include="TUnit" Version="0.1.1099" />
+      <PackageReference Include="LibGit2Sharp" Version="0.31.0" />
+      <PackageReference Include="TUnit" Version="0.19.32" />
     </ItemGroup>
 
     <ItemGroup>

test/AutoVer.UnitTests/VersionTest.cs

@@ -71,6 +71,57 @@ public async Task CsProj_UseChangeFiles()
         await Assert.That(changelog).Contains("Important change");
         await Assert.That(GitUtilities.GetLastCommitMessage(tempDir)).IsEqualTo("Updated changelog");
     }
+
+    [Test]
+    public async Task CsProj_UseChangeFiles_VersionNoChangedFiles()
+    {
+        string tempDir = TestContext.Current?.ObjectBag["tempDir"]?.ToString() ?? throw new Exception("Temp directory is null");
+
+        await Assert.That(await IOUtilities.CreateProject(tempDir, "src", "Project1")).IsTrue();
+        await IOUtilities.SetProjectVersion(Path.Combine(tempDir, "src", "Project1", "Project1.csproj"), "1.0.0");
+
+        string autoVerFile =
+$@"{{
+    ""Projects"": [
+        {{
+            ""Name"": ""Project1"",
+            ""Path"": ""src/Project1/Project1.csproj""
+        }}
+    ],
+    ""UseCommitsForChangelog"": false,
+    ""UseSameVersionForAllProjects"": false,
+    ""DefaultIncrementType"": ""Patch"",
+    ""ChangeFilesDetermineIncrementType"": true
+}}";
+
+        var autoVerFilePath = IOUtilities.AddAutoVerFile(tempDir, autoVerFile);
+        GitUtilities.StageChanges(tempDir, "*");
+        GitUtilities.CommitChanges(tempDir, "Initial Commit");
+
+        var changeFilePath = await IOUtilities.AddChangeFile("Project1", IncrementType.Patch, "Important change", tempDir);
+        GitUtilities.StageChanges(tempDir, changeFilePath);
+        GitUtilities.CommitChanges(tempDir, "First change");
+
+        var app = AutoVerUtilities.InitializeApp();
+        await Assert.That(app).IsNotNull();
+
+        var versionArgs = new[] { "version", "--project-path", tempDir, "--use-version", "1.0.0" };
+        var exitCode = await app!.Run(versionArgs);
+
+        await Assert.That(exitCode).IsEqualTo(0);
+        await Assert.That(await IOUtilities.GetProjectVersion(Path.Combine(tempDir, "src", "Project1", "Project1.csproj"))).IsEqualTo("1.0.0");
+        await Assert.That(GitUtilities.GetLastTag(tempDir)).IsEqualTo($"release_{DateTime.UtcNow:yyyy-MM-dd}");
+
+        app = AutoVerUtilities.InitializeApp();
+        var changelogArgs = new[] { "changelog", "--project-path", tempDir };
+        exitCode = await app!.Run(changelogArgs);
+
+        await Assert.That(exitCode).IsEqualTo(0);
+        var changelog = await IOUtilities.GetChangelog(tempDir);
+        await Assert.That(changelog).Contains($"Release {DateTime.UtcNow:yyyy-MM-dd}");
+        await Assert.That(changelog).Contains("Important change");
+        await Assert.That(GitUtilities.GetLastCommitMessage(tempDir)).IsEqualTo("Updated changelog");
+    }
 
     [Test]
     public async Task CsProj_DontUseChangeFiles_DefaultIncrement()