From 7b38bf5d735623922ab608020ac12dceb5677b7d Mon Sep 17 00:00:00 2001
From: Kouji Matsui <k@kekyo.net>
Date: Fri, 23 Jun 2023 14:22:22 +0900
Subject: [PATCH 1/4] Fixed causing NRE on uninitialized git repository.

---
 CenterCLR.RelaxVersioner.Core/Processor.cs | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/CenterCLR.RelaxVersioner.Core/Processor.cs b/CenterCLR.RelaxVersioner.Core/Processor.cs
index 8105cf0..1001b9c 100644
--- a/CenterCLR.RelaxVersioner.Core/Processor.cs
+++ b/CenterCLR.RelaxVersioner.Core/Processor.cs
@@ -89,7 +89,8 @@ private static async Task<Result> WriteVersionSourceFileAsync(
             await targetBranch.GetHeadCommitAsync(ct) :
             null;
 
-        var commitId = commit?.Hash.ToString() ?? string.Empty;
+        var commitId = commit?.Hash.ToString() ??
+            "unknown";
 
         static string FormatSignature(Signature? sig) => sig is { } s ?
             (s.MailAddress is { } ma ? $"{s.Name} <{ma}>" : s.Name) :
@@ -168,13 +169,13 @@ static string FormatSignature(Signature? sig) => sig is { } s ?
             intDateVersion,
             epochIntDateVersion,
             commitId,
-            targetBranch.Name,
+            targetBranch?.Name,
             tags,
             commitDate,
             author,
             committer,
-            commit.Subject,
-            commit.Body);
+            commit?.Subject,
+            commit?.Body);
     }
 
     public async Task<Result> RunAsync(
@@ -200,7 +201,7 @@ public async Task<Result> RunAsync(
                 logger,
                 writer,
                 context,
-                repository.Head,
+                repository?.Head,
                 DateTimeOffset.Now,
                 ruleSet,
                 importSet,

From 11aa10c52b06dff69bd25bfd97af3ea5f53fdb3c Mon Sep 17 00:00:00 2001
From: Kouji Matsui <k@kekyo.net>
Date: Fri, 23 Jun 2023 14:22:31 +0900
Subject: [PATCH 2/4] Updated GitReader.

---
 .../CenterCLR.RelaxVersioner.Core.csproj                        | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CenterCLR.RelaxVersioner.Core/CenterCLR.RelaxVersioner.Core.csproj b/CenterCLR.RelaxVersioner.Core/CenterCLR.RelaxVersioner.Core.csproj
index 411b5ea..50fdaaf 100644
--- a/CenterCLR.RelaxVersioner.Core/CenterCLR.RelaxVersioner.Core.csproj
+++ b/CenterCLR.RelaxVersioner.Core/CenterCLR.RelaxVersioner.Core.csproj
@@ -12,7 +12,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="GitReader" Version="0.12.0" />
+    <PackageReference Include="GitReader" Version="0.13.0" />
     <PackageReference Include="NamingFormatter" Version="2.2.0" />
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3" PrivateAssets="All" />
     <PackageReference Include="RelaxVersioner" Version="2.14.0" PrivateAssets="all" />

From b232ed095e5762409eb4ba9a0060298b66b82774 Mon Sep 17 00:00:00 2001
From: Kouji Matsui <k@kekyo.net>
Date: Fri, 23 Jun 2023 14:23:49 +0900
Subject: [PATCH 3/4] Updated self-hosted package.

---
 .../CenterCLR.RelaxVersioner.Core.csproj                        | 2 +-
 .../CenterCLR.RelaxVersioner.Tasks.csproj                       | 2 +-
 CenterCLR.RelaxVersioner/CenterCLR.RelaxVersioner.csproj        | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/CenterCLR.RelaxVersioner.Core/CenterCLR.RelaxVersioner.Core.csproj b/CenterCLR.RelaxVersioner.Core/CenterCLR.RelaxVersioner.Core.csproj
index 50fdaaf..13ee40d 100644
--- a/CenterCLR.RelaxVersioner.Core/CenterCLR.RelaxVersioner.Core.csproj
+++ b/CenterCLR.RelaxVersioner.Core/CenterCLR.RelaxVersioner.Core.csproj
@@ -15,7 +15,7 @@
     <PackageReference Include="GitReader" Version="0.13.0" />
     <PackageReference Include="NamingFormatter" Version="2.2.0" />
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3" PrivateAssets="All" />
-    <PackageReference Include="RelaxVersioner" Version="2.14.0" PrivateAssets="all" />
+    <PackageReference Include="RelaxVersioner" Version="2.15.0" PrivateAssets="all" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/CenterCLR.RelaxVersioner.Tasks/CenterCLR.RelaxVersioner.Tasks.csproj b/CenterCLR.RelaxVersioner.Tasks/CenterCLR.RelaxVersioner.Tasks.csproj
index d106f13..7e61ea6 100644
--- a/CenterCLR.RelaxVersioner.Tasks/CenterCLR.RelaxVersioner.Tasks.csproj
+++ b/CenterCLR.RelaxVersioner.Tasks/CenterCLR.RelaxVersioner.Tasks.csproj
@@ -27,7 +27,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="RelaxVersioner" Version="2.14.0" PrivateAssets="all" />
+    <PackageReference Include="RelaxVersioner" Version="2.15.0" PrivateAssets="all" />
   </ItemGroup>
 
 </Project>
diff --git a/CenterCLR.RelaxVersioner/CenterCLR.RelaxVersioner.csproj b/CenterCLR.RelaxVersioner/CenterCLR.RelaxVersioner.csproj
index afc3b57..1c1fed5 100644
--- a/CenterCLR.RelaxVersioner/CenterCLR.RelaxVersioner.csproj
+++ b/CenterCLR.RelaxVersioner/CenterCLR.RelaxVersioner.csproj
@@ -28,7 +28,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3" PrivateAssets="All" />
     <PackageReference Include="Mono.Options" Version="6.12.0.148" />
-    <PackageReference Include="RelaxVersioner" Version="2.14.0" PrivateAssets="all" />
+    <PackageReference Include="RelaxVersioner" Version="2.15.0" PrivateAssets="all" />
   </ItemGroup>
 
   <ItemGroup>

From 065e2f8beb53f90b88ad7f854c0b8241e34fc94d Mon Sep 17 00:00:00 2001
From: Kouji Matsui <k@kekyo.net>
Date: Fri, 23 Jun 2023 14:26:21 +0900
Subject: [PATCH 4/4] Updated readme.

---
 README.ja.md | 2 ++
 README.md    | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/README.ja.md b/README.ja.md
index 3c5bec3..7d0c325 100644
--- a/README.ja.md
+++ b/README.ja.md
@@ -454,6 +454,8 @@ nuspecファイルを使ってパッケージを生成する場合は、デフ
 
 ## 履歴
 
+* 2.16.0:
+  * 初期化されていない Git リポジトリで NRE が発生する問題を修正。
 * 2.15.0:
   * Gitリポジトリの読み取りを、libgit2sharp から [GitReader](https://github.com/kekyo/GitReader) に変更しました。
     ネイティブライブラリに依存しなくなったため、動作環境の制限が緩和されます。
diff --git a/README.md b/README.md
index f15ee56..2a7337b 100644
--- a/README.md
+++ b/README.md
@@ -435,6 +435,8 @@ When you are using a nuspec file to generate a NuGet package, there are addition
 
 ## History
 
+* 2.16.0:
+  * Fixed causing NRE on uninitialized git repository.
 * 2.15.0:
   * Changed reading of Git repositories using [GitReader](https://github.com/kekyo/GitReader) instead of libgit2sharp.
     The native library no longer depends on it, which eases the limitation of the operating environment.