From fb0a828ede6736ac63cd6320ead3061617fc02d9 Mon Sep 17 00:00:00 2001
From: mgarciaisaia <mgarciaisaia+github@gmail.com>
Date: Fri, 2 Dec 2016 10:07:54 -0300
Subject: [PATCH] commit with custom author date

---
 lib/git/lib.rb             |  1 +
 tests/units/test_commit.rb | 53 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 54 insertions(+)
 create mode 100644 tests/units/test_commit.rb

diff --git a/lib/git/lib.rb b/lib/git/lib.rb
index 777e42ea..51f12086 100644
--- a/lib/git/lib.rb
+++ b/lib/git/lib.rb
@@ -551,6 +551,7 @@ def commit(message, opts = {})
       arr_opts << '--all' if opts[:add_all] || opts[:all]
       arr_opts << '--allow-empty' if opts[:allow_empty]
       arr_opts << "--author=#{opts[:author]}" if opts[:author]
+      arr_opts << "--date=#{opts[:date]}" if opts[:date].is_a? String
 
       command('commit', arr_opts)
     end
diff --git a/tests/units/test_commit.rb b/tests/units/test_commit.rb
new file mode 100644
index 00000000..f6b713be
--- /dev/null
+++ b/tests/units/test_commit.rb
@@ -0,0 +1,53 @@
+#!/usr/bin/env ruby
+
+require File.dirname(__FILE__) + '/../test_helper'
+
+class TestCommit < Test::Unit::TestCase
+
+  def setup
+    set_file_paths
+  end
+
+  def test_add
+    in_temp_dir do |path|
+      git = Git.clone(@wdir, 'test_commit')
+
+      create_file('test_commit/test_file_1', 'content tets_file_1')
+      git.add('test_file_1')
+
+      git.commit('test_add commit #1')
+
+      head = git.log[0]
+      assert(head.message == 'test_add commit #1')
+      assert(head.author.name == head.committer.name)
+      assert(head.author.email == head.committer.email)
+      assert(head.author.date == head.committer.date)
+
+      update_file('test_commit/test_file_1', 'new content')
+      git.commit('commit #2', all: true)
+
+      previous = head
+      head = git.log[0]
+
+      assert(head.message == 'commit #2')
+      assert(head.parent.sha == previous.sha)
+
+      update_file('test_commit/test_file_1', 'other content')
+      git.add('test_file_1')
+
+      author_date = Time.new(2016, 8, 3, 17, 37, 0, "-03:00")
+      new_author = "#{head.author.name} Other <#{head.author.email}.tld>"
+
+      git.commit('commit #3', date: author_date.strftime('%Y-%m-%dT%H:%M:%S %z'), author: new_author)
+
+      previous = head
+      head = git.log[0]
+
+      assert(head.author.name != head.committer.name)
+      assert(head.author.email != head.committer.email)
+      assert(head.author.date != head.committer.date)
+      assert(head.author.date == author_date)
+    end
+  end
+
+end