From a513e5b64003c3f0064f0ce25f889c8013bf3442 Mon Sep 17 00:00:00 2001
From: Webber <webber@takken.io>
Date: Tue, 21 Apr 2020 23:03:12 +0200
Subject: [PATCH] Add semantic versioning logic

---
 .../Assembly-CSharp-Editor.csproj             |  7 ++
 .../Assets/Editor/Versioning.meta             |  3 +
 .../Assets/Editor/Versioning/Git.cs           | 94 +++++++++++++++++++
 .../Assets/Editor/Versioning/Git.cs.meta      |  3 +
 .../Assets/Editor/Versioning/GitException.cs  | 14 +++
 .../Editor/Versioning/GitException.cs.meta    |  3 +
 .../Editor/Versioning/VersionGenerator.cs     | 10 ++
 .../Versioning/VersionGenerator.cs.meta       |  3 +
 .../default-build-script.sln.DotSettings      |  3 +
 9 files changed, 140 insertions(+)
 create mode 100644 action/default-build-script/Assets/Editor/Versioning.meta
 create mode 100644 action/default-build-script/Assets/Editor/Versioning/Git.cs
 create mode 100644 action/default-build-script/Assets/Editor/Versioning/Git.cs.meta
 create mode 100644 action/default-build-script/Assets/Editor/Versioning/GitException.cs
 create mode 100644 action/default-build-script/Assets/Editor/Versioning/GitException.cs.meta
 create mode 100644 action/default-build-script/Assets/Editor/Versioning/VersionGenerator.cs
 create mode 100644 action/default-build-script/Assets/Editor/Versioning/VersionGenerator.cs.meta
 create mode 100644 action/default-build-script/default-build-script.sln.DotSettings

diff --git a/action/default-build-script/Assembly-CSharp-Editor.csproj b/action/default-build-script/Assembly-CSharp-Editor.csproj
index b3b28ef6..57c42a50 100644
--- a/action/default-build-script/Assembly-CSharp-Editor.csproj
+++ b/action/default-build-script/Assembly-CSharp-Editor.csproj
@@ -57,6 +57,10 @@
   </ItemGroup>
   <ItemGroup>
      <Compile Include="Assets\Editor\Builder.cs" />
+     <Compile Include="Assets\Editor\System\ProcessExtensions.cs" />
+     <Compile Include="Assets\Editor\Versioning\Git.cs" />
+     <Compile Include="Assets\Editor\Versioning\VersionGenerator.cs" />
+     <Compile Include="Assets\Editor\Versioning\GitException.cs" />
  <Reference Include="UnityEditor.TestRunner">
  <HintPath>C:/Repositories/unity-builder/builder/default-build-script/Library/ScriptAssemblies/UnityEditor.TestRunner.dll</HintPath>
  </Reference>
@@ -688,6 +692,9 @@
  <HintPath>C:/Program Files/Unity/2019.2.11f1/Editor/Data/MonoBleedingEdge/lib/mono/unityscript/Boo.Lang.dll</HintPath>
  </Reference>
   </ItemGroup>
+  <ItemGroup>
+    <Content Include=".editorconfig" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
diff --git a/action/default-build-script/Assets/Editor/Versioning.meta b/action/default-build-script/Assets/Editor/Versioning.meta
new file mode 100644
index 00000000..8b97df85
--- /dev/null
+++ b/action/default-build-script/Assets/Editor/Versioning.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 1c3bddf6d8984cde9208e3f0fe584879
+timeCreated: 1587490700
\ No newline at end of file
diff --git a/action/default-build-script/Assets/Editor/Versioning/Git.cs b/action/default-build-script/Assets/Editor/Versioning/Git.cs
new file mode 100644
index 00000000..7c060019
--- /dev/null
+++ b/action/default-build-script/Assets/Editor/Versioning/Git.cs
@@ -0,0 +1,94 @@
+using System;
+using UnityEngine;
+
+namespace UnityBuilderAction.Versioning
+{
+  public static class Git
+  {
+    const string application = @"git";
+
+    /// <summary>
+    /// Generate a version based on the latest tag and the amount of commits.
+    /// Format: 0.1.2 (where 2 is the amount of commits).
+    /// 
+    /// If no tag is present in the repository then v0.0 is assumed.
+    /// This would result in 0.0.# where # is the amount of commits.
+    /// </summary>
+    public static string GenerateSemanticCommitVersion()
+    {
+      string version;
+      if (HasAnyVersionTags()) {
+        version = GetSemanticCommitVersion();
+        Console.WriteLine("Repository has a valid version tag.");
+      } else {
+        version = $"0.0.{GetTotalNumberOfCommits()}";
+        Console.WriteLine("Repository does not have tags to base the version on.");
+      }
+
+      Console.WriteLine($"Version is {version}");
+
+      return version;
+    }
+
+    /// <summary>
+    /// Get the total number of commits.
+    /// </summary>
+    static int GetTotalNumberOfCommits()
+    {
+      string numberOfCommitsAsString = Run(@"git rev-list --count HEAD");
+
+      return int.Parse(numberOfCommitsAsString);
+    }
+
+    /// <summary>
+    /// Whether or not the repository has any version tags yet.
+    /// </summary>
+    static bool HasAnyVersionTags()
+    {
+      return "0" != Run(@"tag --list --merged HEAD | grep v[0-9]* | wc -l");
+    }
+
+    /// <summary>
+    /// Retrieves the build version from git based on the most recent matching tag and
+    /// commit history. This returns the version as: {major.minor.build} where 'build'
+    /// represents the nth commit after the tagged commit.
+    /// Note: The initial 'v' and the commit hash are removed.
+    /// </summary>
+    static string GetSemanticCommitVersion()
+    {
+      // v0.1-2-g12345678
+      string version = GetVersionString();
+      // 0.1-2
+      version = version.Substring(1, version.LastIndexOf('-') - 1);
+      // 0.1.2
+      version = version.Replace('-', '.');
+
+      return version;
+    }
+
+    /// <summary>
+    /// Get version string.
+    /// 
+    /// Format: `v0.1-2-g12345678` (where 2 is the amount of commits since the last tag)
+    /// </summary>
+    static string GetVersionString()
+    {
+      return Run(@"describe --tags --long --match ""v[0-9]*""");
+    }
+
+    /// <summary>
+    /// Runs git binary with any given arguments and returns the output.
+    /// </summary>
+    static string Run(string arguments)
+    {
+      using (var process = new System.Diagnostics.Process()) {
+        string workingDirectory = Application.dataPath;
+
+        int exitCode = process.Run(application, arguments, workingDirectory, out string output, out string errors);
+        if (exitCode != 0) { throw new GitException(exitCode, errors); }
+
+        return output;
+      }
+    }
+  }
+}
diff --git a/action/default-build-script/Assets/Editor/Versioning/Git.cs.meta b/action/default-build-script/Assets/Editor/Versioning/Git.cs.meta
new file mode 100644
index 00000000..2e3ffa74
--- /dev/null
+++ b/action/default-build-script/Assets/Editor/Versioning/Git.cs.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: cdec7fa0f5bb44958fdf74d4658a4601
+timeCreated: 1587495075
\ No newline at end of file
diff --git a/action/default-build-script/Assets/Editor/Versioning/GitException.cs b/action/default-build-script/Assets/Editor/Versioning/GitException.cs
new file mode 100644
index 00000000..45cc91de
--- /dev/null
+++ b/action/default-build-script/Assets/Editor/Versioning/GitException.cs
@@ -0,0 +1,14 @@
+using System;
+
+namespace UnityBuilderAction.Versioning
+{
+  public class GitException : InvalidOperationException
+  {
+    public readonly int code;
+
+    public GitException(int code, string errors) : base(errors)
+    {
+      this.code = code;
+    }
+  }
+}
diff --git a/action/default-build-script/Assets/Editor/Versioning/GitException.cs.meta b/action/default-build-script/Assets/Editor/Versioning/GitException.cs.meta
new file mode 100644
index 00000000..a1f218c0
--- /dev/null
+++ b/action/default-build-script/Assets/Editor/Versioning/GitException.cs.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 4d375e209fd14fc5bc2f3dc3c78ac574
+timeCreated: 1587490750
\ No newline at end of file
diff --git a/action/default-build-script/Assets/Editor/Versioning/VersionGenerator.cs b/action/default-build-script/Assets/Editor/Versioning/VersionGenerator.cs
new file mode 100644
index 00000000..1533ed61
--- /dev/null
+++ b/action/default-build-script/Assets/Editor/Versioning/VersionGenerator.cs
@@ -0,0 +1,10 @@
+namespace UnityBuilderAction.Versioning
+{
+  public static class VersionGenerator
+  {
+    public static string Generate()
+    {
+      return Git.GenerateSemanticCommitVersion();
+    }
+  }
+}
diff --git a/action/default-build-script/Assets/Editor/Versioning/VersionGenerator.cs.meta b/action/default-build-script/Assets/Editor/Versioning/VersionGenerator.cs.meta
new file mode 100644
index 00000000..460e2641
--- /dev/null
+++ b/action/default-build-script/Assets/Editor/Versioning/VersionGenerator.cs.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 9892e03ae8314b7eacd793c8002de007
+timeCreated: 1587490842
\ No newline at end of file
diff --git a/action/default-build-script/default-build-script.sln.DotSettings b/action/default-build-script/default-build-script.sln.DotSettings
new file mode 100644
index 00000000..c1bfe2a5
--- /dev/null
+++ b/action/default-build-script/default-build-script.sln.DotSettings
@@ -0,0 +1,3 @@
+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=Untracked/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=Versioning/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>
\ No newline at end of file