Merge pull request #888 from github-for-unity/public-git-client

Public Git Client API

Author: StanleyGoldman

docs/using/quick-guide.md

@@ -9,6 +9,7 @@ These documents contain more details on how to use the GitHub for Unity plugin:
 - **[Managing Branches](https://github.com/github-for-unity/Unity/blob/master/docs/using/managing-branches.md)**
 - **[Locking Files](https://github.com/github-for-unity/Unity/blob/master/docs/using/locking-files.md)**
 - **[Working with Changes](https://github.com/github-for-unity/Unity/blob/master/docs/using/working-with-changes.md)**
+- **[Using the Api](https://github.com/github-for-unity/Unity/blob/master/docs/using/using-the-api.md)**
 
 ## Table of Contents
 

docs/using/using-the-api.md

@@ -0,0 +1,75 @@
+# Using the API
+
+GitHub for Unity provides access to a git client to help users create their own tools to assist in their workflow.
+
+Users can separate the user interface from the API by removing `GitHub.Unity.dll`. All other libraries are required by the API.
+
+## Creating an instance of `GitClient`
+```cs
+var defaultEnvironment = new DefaultEnvironment();
+defaultEnvironment.Initialize(null, NPath.Default, NPath.Default, NPath.Default, Application.dataPath.ToNPath());
+
+var processEnvironment = new ProcessEnvironment(defaultEnvironment);
+var processManager = new ProcessManager(defaultEnvironment, processEnvironment, TaskManager.Instance.Token);
+
+var gitClient = new GitClient(defaultEnvironment, processManager, TaskManager.Instance.Token);
+```
+
+## Full Example
+This example creates a window that has a single button which commits all changes.
+```cs
+using System;
+using System.Globalization;
+using GitHub.Unity;
+using UnityEditor;
+using UnityEngine;
+
+public class CustomGitEditor : EditorWindow
+{
+    [MenuItem("Window/Custom Git")]
+    public static void ShowWindow()
+    {
+        EditorWindow.GetWindow(typeof(CustomGitEditor));
+    }
+
+    [NonSerialized] private GitClient gitClient;
+
+    public void OnEnable()
+    {
+        InitGitClient();
+    }
+
+    private void InitGitClient()
+    {
+        if (gitClient != null) return;
+
+        Debug.Log("Init GitClient");
+
+        var defaultEnvironment = new DefaultEnvironment();
+        defaultEnvironment.Initialize(null, NPath.Default, NPath.Default, 
+            NPath.Default, Application.dataPath.ToNPath());
+
+        var processEnvironment = new ProcessEnvironment(defaultEnvironment);
+        var processManager = new ProcessManager(defaultEnvironment, processEnvironment, TaskManager.Instance.Token);
+
+        gitClient = new GitClient(defaultEnvironment, processManager, TaskManager.Instance.Token);
+    }
+
+    void OnGUI()
+    {
+        GUILayout.Label("Custom Git Window", EditorStyles.boldLabel);
+
+        if (GUILayout.Button("Commit Stuff"))
+        {
+            var message = DateTime.Now.ToString(CultureInfo.InvariantCulture);
+            var body = string.Empty;
+
+            gitClient.AddAll()
+                .Then(gitClient.Commit(message, body))
+                .Start();
+        }
+    }
+}
+```
+
+