From 7c1bea33902cbdb2bf508b4f315458de54cf9ea9 Mon Sep 17 00:00:00 2001
From: AkashSrivastava <akashsrivastava@Apples-MacBook-Pro.local>
Date: Tue, 20 Nov 2018 12:04:51 +0530
Subject: [PATCH] Deleting all merged branches in a project

---
 lib/gitlab/client/branches.rb       | 12 ++++++++++++
 spec/gitlab/client/branches_spec.rb | 14 ++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/lib/gitlab/client/branches.rb b/lib/gitlab/client/branches.rb
index 107f93c50..69ce66828 100644
--- a/lib/gitlab/client/branches.rb
+++ b/lib/gitlab/client/branches.rb
@@ -94,5 +94,17 @@ def delete_branch(project, branch)
       delete("/projects/#{url_encode project}/repository/branches/#{url_encode branch}")
     end
     alias repo_delete_branch delete_branch
+
+    # Delete all branches that are merged into the project default branch. Protected branches will not be deleted as part of this operation.
+    #
+    # @example
+    #   Gitlab.delete_merged_branches(3)
+    #
+    # @param  [Integer, String] project The ID or name of a project.
+    # @return [nil] This API call returns an empty response body.
+    def delete_merged_branches(project)
+      delete("/projects/#{url_encode project}/repository/merged_branches")
+    end
+    alias repo_delete_merged_branches delete_merged_branches
   end
 end
diff --git a/spec/gitlab/client/branches_spec.rb b/spec/gitlab/client/branches_spec.rb
index 5bceaef82..4669ad14f 100644
--- a/spec/gitlab/client/branches_spec.rb
+++ b/spec/gitlab/client/branches_spec.rb
@@ -7,6 +7,9 @@
   it { is_expected.to respond_to :repo_branch }
   it { is_expected.to respond_to :repo_protect_branch }
   it { is_expected.to respond_to :repo_unprotect_branch }
+  it { is_expected.to respond_to :repo_create_branch }
+  it { is_expected.to respond_to :repo_delete_branch }
+  it { is_expected.to respond_to :repo_delete_merged_branches }
 
   describe '.branches' do
     before do
@@ -117,4 +120,15 @@
       expect(@branch.branch_name).to eq('api')
     end
   end
+
+  describe '.delete_merged_branches' do
+    before do
+      stub_delete('/projects/3/repository/merged_branches', 'empty')
+      @branch = Gitlab.delete_merged_branches(3)
+    end
+
+    it 'gets the correct resource' do
+      expect(a_delete('/projects/3/repository/merged_branches')).to have_been_made
+    end
+  end
 end