Add Pull Request merge options - Ignore white-space for conflict checking, Rebase, Squash merge (#3188)

* Pull request options migration and UI in settings

* Add ignore whitespace functionality

* Fix settings if pull requests are disabled

* Fix migration transaction

* Merge with Rebase functionality

* UI changes and related functionality for pull request merging button

* Implement squash functionality

* Fix rebase merging

* Fix pull request merge tests

* Add squash and rebase tests

* Fix API method to reuse default message functions

* Some refactoring and small fixes

* Remove more hardcoded values from tests

* Remove unneeded check from API method

* Fix variable name and comment typo

* Fix reset commit count after PR merge

1 files changed, 22 insertions, 0 deletions

diff --git a/public/js/index.js b/public/js/index.js
index 9104bf6400..160be5b684 100644
--- a/public/js/index.js
+++ b/public/js/index.js
@@ -649,6 +649,28 @@ function initRepository() {
             $('#status').val($statusButton.data('status-val'));
             $('#comment-form').submit();
         });
+
+        // Pull Request merge button
+        var $mergeButton = $('.merge-button > button');
+        $mergeButton.on('click', function(e) {
+            e.preventDefault();
+            $('.' + $(this).data('do') + '-fields').show();
+            $(this).parent().hide();
+        });
+        $('.merge-button > .dropdown').dropdown({
+            onChange: function (text, value, $choice) {
+                if ($choice.data('do')) {
+                    $mergeButton.find('.button-text').text($choice.text());
+                    $mergeButton.data('do', $choice.data('do'));
+                }
+            }
+        });
+        $('.merge-cancel').on('click', function(e) {
+            e.preventDefault();
+            $(this).closest('.form').hide();
+            $mergeButton.parent().show();
+        });
+
         initReactionSelector();
     }