Merge pull request #10 from Cysharp/hotfix/AdjustSolutionItem

Adjust the path of SolutionItem at merge

Author: mayuki

src/Editor/SlnMerge.cs

@@ -320,7 +320,21 @@ private static void MergeProjects(SlnMergeMergeContext ctx)
                         }
                     }
 
-                    if (!project.Value.IsFolder)
+                    if (project.Value.IsFolder)
+                    {
+                        // If the project is a folder and it contains solution items, we adjust the path of solution items.
+                        if (project.Value.Sections.TryGetValue(("SolutionItems", "preProject"), out var solutionItems))
+                        {
+                            foreach (var solutionItem in solutionItems.Values.ToArray())
+                            {
+                                solutionItems.Values.Remove(solutionItem.Key);
+                                var solutionItemPathAbsolute = NormalizePath(Path.Combine(Path.GetDirectoryName(ctx.OverlaySolutionFile.Path), solutionItem.Key));
+                                var solutionItemPathRelative = MakeRelative(ctx.MergedSolutionFile.Path, solutionItemPathAbsolute);
+                                solutionItems.Values[solutionItemPathRelative] = solutionItemPathRelative;
+                            }
+                        }
+                    }
+                    else
                     {
                         var overlayProjectPathAbsolute = NormalizePath(Path.Combine(Path.GetDirectoryName(ctx.OverlaySolutionFile.Path), project.Value.Path));
                         project.Value.Path = MakeRelative(ctx.MergedSolutionFile.Path, overlayProjectPathAbsolute);

test/SlnMerge.Tests/SlnMergeTest.cs

@@ -443,6 +443,48 @@ public void Merge_SolutionFolder_ExistedFolder_SectionExists()
 ".Trim(), content.Trim());
         }
 
+        [Fact]
+        public void Merge_SolutionItems()
+        {
+            var baseSln = SolutionFile.Parse(@"C:\Path\To\Nantoka\Nantoka.Unity\Nantoka.Unity.sln", @"
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 16
+Global
+EndGlobal
+".Trim());
+            var overlaySln = SolutionFile.Parse(@"C:\Path\To\Nantoka\Nantoka.Server\Nantoka.Server.sln", @"
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.29509.3
+MinimumVisualStudioVersion = 10.0.40219.1
+Project(""{2150E333-8FDC-42A3-9474-1A3956D46DE8}"") = ""Project Settings"", ""Project Settings"", ""{34006C71-946B-49BF-BBCB-BB091E5A3AE7}""
+	ProjectSection(SolutionItems) = preProject
+		.gitignore = .gitignore
+	EndProjectSection
+EndProject
+Global
+EndGlobal
+".Trim());
+
+            var mergedSolutionFile = SlnMerge.Merge(
+                baseSln,
+                overlaySln,
+                new SlnMergeSettings(),
+                SlnMergeNullLogger.Instance);
+            var content = mergedSolutionFile.ToFileContent();
+            Assert.Equal((@"
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 16
+Project(""{2150E333-8FDC-42A3-9474-1A3956D46DE8}"") = ""Project Settings"", ""Project Settings"", ""{34006C71-946B-49BF-BBCB-BB091E5A3AE7}""
+	ProjectSection(SolutionItems) = preProject
+		..\Nantoka.Server\.gitignore = ..\Nantoka.Server\.gitignore
+	EndProjectSection
+EndProject
+Global
+EndGlobal
+").Trim(), content.Trim());
+        }
+
         [Fact]
         public void TestMerge()
         {