Run default addressables build conditionally (#231)

* Add asmdef and Addressable content build in the builder

* Move asmdef content into its own directory

* Mark UnityBuilderAction as Editor-only

dist/default-build-script/Assets/Editor/UnityBuilderAction/Versioning/Git.cs

@@ -0,0 +1,116 @@
+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 version of the current tag.
+    ///
+    /// The tag must point at HEAD for this method to work.
+    ///
+    /// Output Format:
+    /// #.* (where # is the major version and * can be any number of any type of character)
+    /// </summary>
+    public static string GetTagVersion()
+    {
+      string version = Run(@"tag --points-at HEAD | grep v[0-9]*");
+
+      version = version.Substring(1);
+
+      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 (where 2 is the amount of commits, g stands for git)
+      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)
+    ///
+    /// See: https://softwareengineering.stackexchange.com/questions/141973/how-do-you-achieve-a-numeric-versioning-scheme-with-git
+    /// </summary>
+    static string GetVersionString()
+    {
+      return Run(@"describe --tags --long --match ""v[0-9]*""");
+
+      // Todo - implement split function based on this more complete query
+      // return Run(@"describe --long --tags --dirty --always");
+    }
+
+    /// <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;
+      }
+    }
+  }
+}

dist/default-build-script/Assets/Editor/UnityBuilderAction/Versioning/Git.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: cdec7fa0f5bb44958fdf74d4658a4601
+timeCreated: 1587495075

dist/default-build-script/Assets/Editor/UnityBuilderAction/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;
+    }
+  }
+}

dist/default-build-script/Assets/Editor/UnityBuilderAction/Versioning/GitException.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 4d375e209fd14fc5bc2f3dc3c78ac574
+timeCreated: 1587490750

dist/default-build-script/Assets/Editor/UnityBuilderAction/Versioning/VersionApplicator.cs

@@ -0,0 +1,27 @@
+using System;
+using UnityEditor;
+
+namespace UnityBuilderAction.Versioning
+{
+  public class VersionApplicator
+  {
+    public static void SetVersion(string version)
+    {
+      if (version == "none") {
+        return;
+      }
+
+      Apply(version);
+    }
+
+    public static void SetAndroidVersionCode(string androidVersionCode) {
+      PlayerSettings.Android.bundleVersionCode = Int32.Parse(androidVersionCode);
+    }
+
+    static void Apply(string version)
+    {
+      PlayerSettings.bundleVersion = version;
+      PlayerSettings.macOS.buildNumber = version;
+    }
+  }
+}

dist/default-build-script/Assets/Editor/UnityBuilderAction/Versioning/VersionApplicator.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 30483367ddc84699a0da377ccb93769a
+timeCreated: 1587504315

dist/default-build-script/Assets/Editor/UnityBuilderAction/Versioning/VersionGenerator.cs

@@ -0,0 +1,10 @@
+namespace UnityBuilderAction.Versioning
+{
+  public static class VersionGenerator
+  {
+    public static string Generate()
+    {
+      return Git.GenerateSemanticCommitVersion();
+    }
+  }
+}

dist/default-build-script/Assets/Editor/UnityBuilderAction/Versioning/VersionGenerator.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 9892e03ae8314b7eacd793c8002de007
+timeCreated: 1587490842