Create VersionApplicator

action/default-build-script/Assets/Editor/Versioning/Git.cs

@@ -30,6 +30,22 @@ namespace UnityBuilderAction.Versioning
       return version;
     }
 
+    /// <summary>
+    /// Get the version of the current tag.
+    ///
+    /// Output Format:
+    /// #.* (where # is the major version and * can be any number of any type of character)
+    /// </summary>
+    /// <returns></returns>
+    public static string GenerateSemanticClassicVersion()
+    {
+      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>

action/default-build-script/Assets/Editor/Versioning/VersionApplicator.cs

@@ -0,0 +1,64 @@
+using System;
+using JetBrains.Annotations;
+using UnityEditor;
+
+namespace UnityBuilderAction.Versioning
+{
+  public class VersionApplicator
+  {
+    enum Strategy
+    {
+      None,
+      Custom,
+      SemanticCommit,
+      SemanticClassic,
+    }
+
+    public static void SetVersionForBuild(string strategy, [CanBeNull] string version)
+    {
+      if (!Enum.TryParse<Strategy>(strategy, out Strategy validatedStrategy)) {
+        throw new Exception($"Invalid versioning argument provided. {strategy} is not a valid strategy.");
+      }
+
+      switch (validatedStrategy) {
+        case Strategy.None:
+          return;
+        case Strategy.Custom:
+          ApplyCustomVersion(version);
+          return;
+        case Strategy.SemanticCommit:
+          ApplySemanticCommitVersion();
+          return;
+        case Strategy.SemanticClassic:
+          ApplySemanticClassicVersion();
+          return;
+        default:
+          throw new NotImplementedException("Version strategy has not been implemented.");
+      }
+    }
+
+    static void ApplyCustomVersion(string version)
+    {
+      Apply(version);
+    }
+
+    static void ApplySemanticCommitVersion()
+    {
+      string version = Git.GenerateSemanticCommitVersion();
+
+      Apply(version);
+    }
+
+    static void ApplySemanticClassicVersion()
+    {
+      string version = Git.GenerateSemanticClassicVersion();
+
+      Apply(version);
+    }
+
+    static void Apply(string version)
+    {
+      PlayerSettings.bundleVersion = version;
+    }
+  }
+}

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

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