Support git-worktree on History

Author: shiena

src/GitHub.Api/Git/RepositoryManager.cs

@@ -69,20 +69,36 @@ public RepositoryPathConfiguration(NPath repositoryPath)
             RepositoryPath = repositoryPath;
 
             DotGitPath = repositoryPath.Combine(".git");
+            NPath CommonPath;
             if (DotGitPath.FileExists())
             {
                 DotGitPath =
                     DotGitPath.ReadAllLines()
                               .Where(x => x.StartsWith("gitdir:"))
                               .Select(x => x.Substring(7).Trim().ToNPath())
                               .First();
+                if (DotGitPath.Combine("commondir").FileExists())
+                {
+                    CommonPath = DotGitPath.Combine("commondir").ReadAllLines()
+                        .Select(x => x.Trim().ToNPath())
+                        .First();
+                    CommonPath = DotGitPath.Combine(CommonPath);
+                }
+                else
+                {
+                    CommonPath = DotGitPath;
+                }
+            }
+            else
+            {
+                CommonPath = DotGitPath;
             }
 
-            BranchesPath = DotGitPath.Combine("refs", "heads");
-            RemotesPath = DotGitPath.Combine("refs", "remotes");
+            BranchesPath = CommonPath.Combine("refs", "heads");
+            RemotesPath = CommonPath.Combine("refs", "remotes");
             DotGitIndex = DotGitPath.Combine("index");
             DotGitHead = DotGitPath.Combine("HEAD");
-            DotGitConfig = DotGitPath.Combine("config");
+            DotGitConfig = CommonPath.Combine("config");
             DotGitCommitEditMsg = DotGitPath.Combine("COMMIT_EDITMSG");
         }
 

src/GitHub.Api/Platform/DefaultEnvironment.cs

@@ -89,9 +89,9 @@ public void InitializeRepository(NPath? repositoryPath = null)
 
                 expectedRepositoryPath = repositoryPath != null ? repositoryPath.Value : UnityProjectPath;
 
-                if (!expectedRepositoryPath.DirectoryExists(".git"))
+                if (!expectedRepositoryPath.Exists(".git"))
                 {
-                    NPath reporoot = UnityProjectPath.RecursiveParents.FirstOrDefault(d => d.DirectoryExists(".git"));
+                    NPath reporoot = UnityProjectPath.RecursiveParents.FirstOrDefault(d => d.Exists(".git"));
                     if (reporoot.IsInitialized)
                         expectedRepositoryPath = reporoot;
                 }
@@ -102,7 +102,7 @@ public void InitializeRepository(NPath? repositoryPath = null)
             }
 
             FileSystem.SetCurrentDirectory(expectedRepositoryPath);
-            if (expectedRepositoryPath.DirectoryExists(".git"))
+            if (expectedRepositoryPath.Exists(".git"))
             {
                 RepositoryPath = expectedRepositoryPath;
                 Repository = new Repository(RepositoryPath, CacheContainer);