Use Gitlab::PushOptions for `ci.skip` push option

Previously the raw push option Array was sent to Pipeline::Chain::Skip.

This commit updates this class (and the chain of classes that pass the
push option parameters from the API internal `post_receive` endpoint to
that class) to treat push options as a Hash of options parsed by
GitLab::PushOptions.

The GitLab::PushOptions class takes options like this:

    -o ci.skip -o merge_request.create -o merge_request.target=branch

and turns them into a Hash like this:

    {
      ci: {
        skip: true
      },
      merge_request: {
        create: true,
        target: 'branch'
      }
    }

This now how Pipeline::Chain::Skip is determining if the `ci.skip` push
option was used.

1 files changed, 3 insertions, 6 deletions

diff --git a/lib/gitlab/data_builder/push.rb b/lib/gitlab/data_builder/push.rb
index ea08b5f7eae..af385d7d4ca 100644
--- a/lib/gitlab/data_builder/push.rb
+++ b/lib/gitlab/data_builder/push.rb
@@ -32,10 +32,7 @@ module Gitlab
             }
           ],
           total_commits_count: 1,
-          push_options: [
-            "ci.skip",
-            "custom option"
-          ]
+          push_options: { ci: { skip: true } }
         }.freeze
 
       # Produce a hash of post-receive data
@@ -57,11 +54,11 @@ module Gitlab
       #   },
       #   commits: Array,
       #   total_commits_count: Fixnum,
-      #   push_options: Array
+      #   push_options: Hash
       # }
       #
       # rubocop:disable Metrics/ParameterLists
-      def build(project, user, oldrev, newrev, ref, commits = [], message = nil, commits_count: nil, push_options: [])
+      def build(project, user, oldrev, newrev, ref, commits = [], message = nil, commits_count: nil, push_options: {})
         commits = Array(commits)
 
         # Total commits count