pull-requests: use merge info to show how Pull requests will be merged.

- rebase or merge commit is shown as merge strategy.
- close/delete branch are shown if that option is selected.

rhodecode/apps/repository/views/repo_pull_requests.py

@@ -368,6 +368,8 b' class RepoPullRequestsView(RepoAppView, '
         c.pr_merge_possible = not _merge_check.failed
         c.pr_merge_message = _merge_check.merge_msg
 
+        c.pr_merge_info = MergeCheck.get_merge_conditions(pull_request_latest)
+
         c.pull_request_review_status = _merge_check.review_status
         if merge_checks:
             self.request.override_renderer = \

rhodecode/model/pull_request.py

@@ -1544,6 +1544,38 b' class MergeCheck(object):'
         log.debug('MergeCheck: is failed: %s', merge_check.failed)
         return merge_check
 
+    @classmethod
+    def get_merge_conditions(cls, pull_request):
+        merge_details = {}
+
+        model = PullRequestModel()
+        use_rebase = model._use_rebase_for_merging(pull_request)
+
+        if use_rebase:
+            merge_details['merge_strategy'] = dict(
+                details={},
+                message=_('Merge strategy: rebase')
+            )
+        else:
+            merge_details['merge_strategy'] = dict(
+                details={},
+                message=_('Merge strategy: explicit merge commit')
+            )
+
+        close_branch = model._close_branch_before_merging(pull_request)
+        if close_branch:
+            repo_type = pull_request.target_repo.repo_type
+            if repo_type == 'hg':
+                close_msg = _('Source branch will be closed after merge.')
+            elif repo_type == 'git':
+                close_msg = _('Source branch will be deleted after merge.')
+
+            merge_details['close_branch'] = dict(
+                details={},
+                message=close_msg
+            )
+
+        return merge_details
 
 ChangeTuple = namedtuple('ChangeTuple',
                          ['added', 'common', 'removed', 'total'])

rhodecode/public/css/main.less

@@ -1741,10 +1741,14 b' BIN_FILENODE = 7'
 }
 
 .pull-request-merge-actions {
-    height: 30px;
+    min-height: 30px;
     padding: 0px 0px;
 }
 
+.pull-request-merge-info {
+  padding: 0px 5px 5px 0px;
+}
+
 .merge-status {
   margin-right: 5px;
 }

rhodecode/public/css/rcicons.less

@@ -62,6 +62,7 b''
 .icon-lock:before { content: '\e806'; } /* '' */
 .icon-unlock:before { content: '\e807'; } /* '' */
 .icon-delete:before { content: '\e808'; } /* '' */
+.icon-false:before { content: '\e808'; } /* '' */
 
 .icon-ok:before { content: '\e809'; } /* '' */
 .icon-true:before { content: '\e809'; } /* '' */

rhodecode/templates/pullrequests/pullrequest_merge_checks.mako

@@ -13,6 +13,7 b''
         </h2>
     % endif
 
+    % if c.pr_merge_errors.items():
     <ul>
         % for pr_check_key, pr_check_details in c.pr_merge_errors.items():
             <% pr_check_type = pr_check_details['error_type'] %>
@@ -28,10 +29,24 b''
             </li>
         % endfor
     </ul>
+    % endif
 
     <div class="pull-request-merge-actions">
         % if c.allowed_to_merge:
-        <div class="pull-right">
+          ## Merge info, show only if all errors are taken care of
+          % if not c.pr_merge_errors and c.pr_merge_info:
+              <div class="pull-request-merge-info">
+                  <ul>
+                    % for pr_merge_key, pr_merge_details in c.pr_merge_info.items():
+                    <li>
+                        - ${pr_merge_details['message']}
+                    </li>
+                    % endfor
+                  </ul>
+              </div>
+          % endif
+
+        <div>
           ${h.secure_form(h.route_path('pullrequest_merge', repo_name=c.repo_name, pull_request_id=c.pull_request.pull_request_id), id='merge_pull_request_form', method='POST', request=request)}
           <% merge_disabled = ' disabled' if c.pr_merge_possible is False else '' %>
           <a class="btn" href="#" onclick="refreshMergeChecks(); return false;">${_('refresh checks')}</a>