Merge branch 'jprovazn-description' into 'master'

Use message body for merge request description

Closes #40968

See merge request gitlab-org/gitlab-ce!15839

doc/user/project/merge_requests/index.md

@@ -138,7 +138,8 @@ You can create a new merge request by sending an email to a user-specific email
 address. The address can be obtained on the merge requests page by clicking on
 a **Email a new merge request to this project** button.  The subject will be
 used as the source branch name for the new merge request and the target branch
-will be the default branch for the project.
+will be the default branch for the project. The message body (if not empty)
+will be used as the merge request description.
 
 ## Revert changes
 

lib/gitlab/email/handler/create_merge_request_handler.rb

@@ -55,11 +55,13 @@ module Gitlab
         end
 
         def merge_request_params
-          {
+          params = {
             source_project_id: project.id,
             source_branch: mail.subject,
             target_project_id: project.id
           }
+          params[:description] = message if message.present?
+          params
         end
       end
     end

spec/fixtures/emails/valid_new_merge_request.eml

@@ -16,3 +16,5 @@ X-Sieve: CMU Sieve 2.2
 X-Received: by 10.0.0.1 with SMTP id n7mr11234144ipb.85.1371157428600; Thu,
  13 Jun 2013 14:03:48 -0700 (PDT)
 X-Scanned-By: MIMEDefang 2.69 on IPv6:2001:470:1d:165::1
+
+Merge request description

spec/fixtures/emails/valid_new_merge_request_no_description.eml

+Return-Path: <jake@adventuretime.ooo>
+Received: from iceking.adventuretime.ooo ([unix socket]) by iceking (Cyrus v2.2.13-Debian-2.2.13-19+squeeze3) with LMTPA; Thu, 13 Jun 2013 17:03:50 -0400
+Received: from mail-ie0-x234.google.com (mail-ie0-x234.google.com [IPv6:2607:f8b0:4001:c03::234]) by iceking.adventuretime.ooo (8.14.3/8.14.3/Debian-9.4) with ESMTP id r5DL3nFJ016967 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for <incoming+gitlabhq/gitlabhq@appmail.adventuretime.ooo>; Thu, 13 Jun 2013 17:03:50 -0400
+Received: by mail-ie0-f180.google.com with SMTP id f4so21977375iea.25 for <incoming+gitlabhq/gitlabhq@appmail.adventuretime.ooo>; Thu, 13 Jun 2013 14:03:48 -0700
+Received: by 10.0.0.1 with HTTP; Thu, 13 Jun 2013 14:03:48 -0700
+Date: Thu, 13 Jun 2013 17:03:48 -0400
+From: Jake the Dog <jake@adventuretime.ooo>
+To: incoming+gitlabhq/gitlabhq+merge-request+auth_token@appmail.adventuretime.ooo
+Message-ID: <CADkmRc+rNGAGGbV2iE5p918UVy4UyJqVcXRO2=otppgzduJSg@mail.gmail.com>
+Subject: feature
+Mime-Version: 1.0
+Content-Type: text/plain;
+ charset=ISO-8859-1
+Content-Transfer-Encoding: 7bit
+X-Sieve: CMU Sieve 2.2
+X-Received: by 10.0.0.1 with SMTP id n7mr11234144ipb.85.1371157428600; Thu,
+ 13 Jun 2013 14:03:48 -0700 (PDT)
+X-Scanned-By: MIMEDefang 2.69 on IPv6:2001:470:1d:165::1

spec/lib/gitlab/email/handler/create_merge_request_handler_spec.rb

@@ -49,6 +49,7 @@ describe Gitlab::Email::Handler::CreateMergeRequestHandler do
         expect(merge_request.author).to eq(user)
         expect(merge_request.source_branch).to eq('feature')
         expect(merge_request.title).to eq('Feature added')
+        expect(merge_request.description).to eq('Merge request description')
         expect(merge_request.target_branch).to eq(project.default_branch)
       end
     end
@@ -79,6 +80,17 @@ describe Gitlab::Email::Handler::CreateMergeRequestHandler do
           expect { receiver.execute }.to raise_error(Gitlab::Email::InvalidMergeRequestError)
         end
       end
+
+      context "when the message body is blank" do
+        let(:email_raw) { fixture_file("emails/valid_new_merge_request_no_description.eml") }
+
+        it "creates a new merge request with description set from the last commit" do
+          expect { receiver.execute }.to change { project.merge_requests.count }.by(1)
+          merge_request = project.merge_requests.last
+
+          expect(merge_request.description).to eq('Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>')
+        end
+      end
     end
   end
 end