Revert "Merge branch '18193-developers-can-merge' into 'master' "

This reverts commit 9ca633eb4c62231e4ddff5466c723cf8e2bdb25d, reversing
changes made to fb229bbf7970ba908962b837b270adf56f14098f.

35 files changed, 303 insertions, 507 deletions

diff --git a/CHANGELOG b/CHANGELOG
index a42f8c7b916..71987a4a695 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -44,7 +44,6 @@ v 8.10.0 (unreleased)
   - Add "Enabled Git access protocols" to Application Settings
   - Diffs will create button/diff form on demand no on server side
   - Reduce size of HTML used by diff comment forms
-  - Protected branches have a "Developers can Merge" setting. !4892 (original implementation by Mathias Vestergaard)
   - Fix user creation with stronger minimum password requirements !4054 (nathan-pmt)
   - Only show New Snippet button to users that can create snippets.
   - PipelinesFinder uses git cache data
diff --git a/app/assets/javascripts/protected_branches.js.coffee b/app/assets/javascripts/protected_branches.js.coffee
index 14afef2e2ee..79c2306e4d2 100644
--- a/app/assets/javascripts/protected_branches.js.coffee
+++ b/app/assets/javascripts/protected_branches.js.coffee
@@ -1,18 +1,18 @@
 $ ->
   $(".protected-branches-list :checkbox").change (e) ->
     name = $(this).attr("name")
-    if name == "developers_can_push" || name == "developers_can_merge"
+    if name == "developers_can_push"
       id = $(this).val()
-      can_push = $(this).is(":checked")
+      checked = $(this).is(":checked")
       url = $(this).data("url")
       $.ajax
-        type: "PATCH"
+        type: "PUT"
         url: url
         dataType: "json"
         data:
           id: id
           protected_branch:
-            "#{name}": can_push
+            developers_can_push: checked
 
         success: ->
           row = $(e.target)
diff --git a/app/controllers/projects/protected_branches_controller.rb b/app/controllers/projects/protected_branches_controller.rb
index 10dca47fded..80dad758afa 100644
--- a/app/controllers/projects/protected_branches_controller.rb
+++ b/app/controllers/projects/protected_branches_controller.rb
@@ -50,6 +50,6 @@ class Projects::ProtectedBranchesController < Projects::ApplicationController
   end
 
   def protected_branch_params
-    params.require(:protected_branch).permit(:name, :developers_can_push, :developers_can_merge)
+    params.require(:protected_branch).permit(:name, :developers_can_push)
   end
 end
diff --git a/app/helpers/branches_helper.rb b/app/helpers/branches_helper.rb
index bfd23aa4e04..601df5c18df 100644
--- a/app/helpers/branches_helper.rb
+++ b/app/helpers/branches_helper.rb
@@ -12,7 +12,7 @@ module BranchesHelper
   def can_push_branch?(project, branch_name)
     return false unless project.repository.branch_exists?(branch_name)
 
-    ::Gitlab::UserAccess.new(current_user, project: project).can_push_to_branch?(branch_name)
+    ::Gitlab::GitAccess.new(current_user, project, 'web').can_push_to_branch?(branch_name)
   end
 
   def project_branches
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index 471e32f3b60..157901378d3 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -552,13 +552,7 @@ class MergeRequest < ActiveRecord::Base
   end
 
   def can_be_merged_by?(user)
-    access = ::Gitlab::UserAccess.new(user, project: project)
-    access.can_push_to_branch?(target_branch) || access.can_merge_to_branch?(target_branch)
-  end
-
-  def can_be_merged_via_command_line_by?(user)
-    access = ::Gitlab::UserAccess.new(user, project: project)
-    access.can_push_to_branch?(target_branch)
+    ::Gitlab::GitAccess.new(user, project, 'web').can_push_to_branch?(target_branch)
   end
 
   def mergeable_ci_state?
diff --git a/app/models/project.rb b/app/models/project.rb
index 2bd97fc48f1..a66b750cd48 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -832,10 +832,6 @@ class Project < ActiveRecord::Base
     protected_branches.matching(branch_name).any?(&:developers_can_push)
   end
 
-  def developers_can_merge_to_protected_branch?(branch_name)
-    protected_branches.matching(branch_name).any?(&:developers_can_merge)
-  end
-
   def forked?
     !(forked_project_link.nil? || forked_project_link.forked_from_project.nil?)
   end
diff --git a/app/models/repository.rb b/app/models/repository.rb
index 09487b62f98..5b670cb4b8f 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -769,9 +769,9 @@ class Repository
     end
   end
 
-  def merge(user, merge_request, options = {})
-    our_commit = rugged.branches[merge_request.target_branch].target
-    their_commit = rugged.lookup(merge_request.diff_head_sha)
+  def merge(user, source_sha, target_branch, options = {})
+    our_commit = rugged.branches[target_branch].target
+    their_commit = rugged.lookup(source_sha)
 
     raise "Invalid merge target" if our_commit.nil?
     raise "Invalid merge source" if their_commit.nil?
@@ -779,16 +779,14 @@ class Repository
     merge_index = rugged.merge_commits(our_commit, their_commit)
     return false if merge_index.conflicts?
 
-    commit_with_hooks(user, merge_request.target_branch) do |tmp_ref|
+    commit_with_hooks(user, target_branch) do |ref|
       actual_options = options.merge(
         parents: [our_commit, their_commit],
         tree: merge_index.write_tree(rugged),
-        update_ref: tmp_ref
+        update_ref: ref
       )
 
-      commit_id = Rugged::Commit.create(rugged, actual_options)
-      merge_request.update(in_progress_merge_commit_sha: commit_id)
-      commit_id
+      Rugged::Commit.create(rugged, actual_options)
     end
   end
 
diff --git a/app/services/commits/change_service.rb b/app/services/commits/change_service.rb
index ed73d8cb8c2..c578097376a 100644
--- a/app/services/commits/change_service.rb
+++ b/app/services/commits/change_service.rb
@@ -23,7 +23,7 @@ module Commits
     private
 
     def check_push_permissions
-      allowed = ::Gitlab::UserAccess.new(current_user, project: project).can_push_to_branch?(@target_branch)
+      allowed = ::Gitlab::GitAccess.new(current_user, project, 'web').can_push_to_branch?(@target_branch)
 
       unless allowed
         raise ValidationError.new('You are not allowed to push into this branch')
@@ -31,7 +31,7 @@ module Commits
 
       true
     end
-
+    
     def create_target_branch(new_branch)
       # Temporary branch exists and contains the change commit
       return success if repository.find_branch(new_branch)
diff --git a/app/services/files/base_service.rb b/app/services/files/base_service.rb
index 55da949f56a..37c5e321b39 100644
--- a/app/services/files/base_service.rb
+++ b/app/services/files/base_service.rb
@@ -42,7 +42,7 @@ module Files
     end
 
     def validate
-      allowed = ::Gitlab::UserAccess.new(current_user, project: project).can_push_to_branch?(@target_branch)
+      allowed = ::Gitlab::GitAccess.new(current_user, project, 'web').can_push_to_branch?(@target_branch)
 
       unless allowed
         raise_error("You are not allowed to push into this branch")
diff --git a/app/services/git_push_service.rb b/app/services/git_push_service.rb
index e02b50ff9a2..a886f35981f 100644
--- a/app/services/git_push_service.rb
+++ b/app/services/git_push_service.rb
@@ -89,8 +89,7 @@ class GitPushService < BaseService
     # Set protection on the default branch if configured
     if current_application_settings.default_branch_protection != PROTECTION_NONE
       developers_can_push = current_application_settings.default_branch_protection == PROTECTION_DEV_CAN_PUSH ? true : false
-      developers_can_merge = current_application_settings.default_branch_protection == PROTECTION_DEV_CAN_MERGE ? true : false
-      @project.protected_branches.create({ name: @project.default_branch, developers_can_push: developers_can_push, developers_can_merge: developers_can_merge })
+      @project.protected_branches.create({ name: @project.default_branch, developers_can_push: developers_can_push })
     end
   end
 
diff --git a/app/services/merge_requests/merge_service.rb b/app/services/merge_requests/merge_service.rb
index 0dac0614141..f1b1d90c457 100644
--- a/app/services/merge_requests/merge_service.rb
+++ b/app/services/merge_requests/merge_service.rb
@@ -34,7 +34,7 @@ module MergeRequests
         committer: committer
       }
 
-      commit_id = repository.merge(current_user, merge_request, options)
+      commit_id = repository.merge(current_user, merge_request.diff_head_sha, merge_request.target_branch, options)
       merge_request.update(merge_commit_sha: commit_id)
     rescue GitHooksService::PreReceiveError => e
       merge_request.update(merge_error: e.message)
@@ -43,8 +43,6 @@ module MergeRequests
       merge_request.update(merge_error: "Something went wrong during merge")
       Rails.logger.error(e.message)
       false
-    ensure
-      merge_request.update(in_progress_merge_commit_sha: nil)
     end
 
     def after_merge
diff --git a/app/services/merge_requests/refresh_service.rb b/app/services/merge_requests/refresh_service.rb
index 1daf6bbf553..b11ecd97a57 100644
--- a/app/services/merge_requests/refresh_service.rb
+++ b/app/services/merge_requests/refresh_service.rb
@@ -48,7 +48,7 @@ module MergeRequests
     end
 
     def force_push?
-      Gitlab::Checks::ForcePush.force_push?(@project, @oldrev, @newrev)
+      Gitlab::ForcePushCheck.force_push?(@project, @oldrev, @newrev)
     end
 
     # Refresh merge request diff if we push to source or target branch of merge request
diff --git a/app/views/projects/merge_requests/widget/open/_conflicts.html.haml b/app/views/projects/merge_requests/widget/open/_conflicts.html.haml
index f000cc38a65..06ab0a3fa00 100644
--- a/app/views/projects/merge_requests/widget/open/_conflicts.html.haml
+++ b/app/views/projects/merge_requests/widget/open/_conflicts.html.haml
@@ -4,7 +4,7 @@
 
 %p
   Please resolve these conflicts or
-  - if @merge_request.can_be_merged_via_command_line_by?(current_user)
+  - if @merge_request.can_be_merged_by?(current_user)
     #{link_to "merge this request manually", "#modal_merge_info", class: "how_to_merge_link vlink", "data-toggle" => "modal"}.
   - else
     ask someone with write access to this repository to merge this request manually.
diff --git a/app/views/projects/protected_branches/_branches_list.html.haml b/app/views/projects/protected_branches/_branches_list.html.haml
index 720d67dff7c..97cb1a9052b 100644
--- a/app/views/projects/protected_branches/_branches_list.html.haml
+++ b/app/views/projects/protected_branches/_branches_list.html.haml
@@ -8,7 +8,6 @@
   .table-responsive
     %table.table.protected-branches-list
       %colgroup
-        %col{ width: "20%" }
         %col{ width: "30%" }
         %col{ width: "25%" }
         %col{ width: "25%" }
@@ -19,7 +18,6 @@
           %th Protected Branch
           %th Commit
           %th Developers Can Push
-          %th Developers Can Merge
           - if can_admin_project
             %th
       %tbody
diff --git a/app/views/projects/protected_branches/_protected_branch.html.haml b/app/views/projects/protected_branches/_protected_branch.html.haml
index 7fda7f96047..474aec3a97c 100644
--- a/app/views/projects/protected_branches/_protected_branch.html.haml
+++ b/app/views/projects/protected_branches/_protected_branch.html.haml
@@ -16,8 +16,6 @@
         (branch was removed from repository)
   %td
     = check_box_tag("developers_can_push", protected_branch.id, protected_branch.developers_can_push, data: { url: url })
-  %td
-    = check_box_tag("developers_can_merge", protected_branch.id, protected_branch.developers_can_merge, data: { url: url })
   - if can_admin_project
     %td
       = link_to 'Unprotect', [@project.namespace.becomes(Namespace), @project, protected_branch], data: { confirm: 'Branch will be writable for developers. Are you sure?' }, method: :delete, class: "btn btn-warning btn-sm pull-right"
diff --git a/app/views/projects/protected_branches/index.html.haml b/app/views/projects/protected_branches/index.html.haml
index 101b3f3b452..3fab95751e0 100644
--- a/app/views/projects/protected_branches/index.html.haml
+++ b/app/views/projects/protected_branches/index.html.haml
@@ -36,14 +36,6 @@
             = f.label :developers_can_push, "Developers can push", class: "label-light append-bottom-0"
             %p.light.append-bottom-0
               Allow developers to push to this branch
-
-        .form-group
-          = f.check_box :developers_can_merge, class: "pull-left"
-          .prepend-left-20
-            = f.label :developers_can_merge, "Developers can merge", class: "label-light append-bottom-0"
-            %p.light.append-bottom-0
-              Allow developers to accept merge requests to this branch
         = f.submit "Protect", class: "btn-create btn protect-branch-btn", disabled: true
-
     %hr
     = render "branches_list"
diff --git a/db/migrate/20160519203051_add_developers_can_merge_to_protected_branches.rb b/db/migrate/20160519203051_add_developers_can_merge_to_protected_branches.rb
deleted file mode 100644
index 15ad8e8bcbb..00000000000
--- a/db/migrate/20160519203051_add_developers_can_merge_to_protected_branches.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddDevelopersCanMergeToProtectedBranches < ActiveRecord::Migration
-  include Gitlab::Database::MigrationHelpers
-
-  disable_ddl_transaction!
-
-  def change
-    add_column_with_default :protected_branches, :developers_can_merge, :boolean, default: false, allow_null: false
-  end
-end
diff --git a/db/migrate/20160629025435_add_column_in_progress_merge_commit_sha_to_merge_requests.rb b/db/migrate/20160629025435_add_column_in_progress_merge_commit_sha_to_merge_requests.rb
deleted file mode 100644
index 7c5f76572ef..00000000000
--- a/db/migrate/20160629025435_add_column_in_progress_merge_commit_sha_to_merge_requests.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class AddColumnInProgressMergeCommitShaToMergeRequests < ActiveRecord::Migration
-  def change
-    add_column :merge_requests, :in_progress_merge_commit_sha, :string
-  end
-end
diff --git a/db/schema.rb b/db/schema.rb
index 64019cf79bb..f24e47b85b2 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -626,7 +626,6 @@ ActiveRecord::Schema.define(version: 20160712171823) do
     t.string   "merge_commit_sha"
     t.datetime "deleted_at"
     t.integer  "lock_version",              default: 0,     null: false
-    t.string   "in_progress_merge_commit_sha"
   end
 
   add_index "merge_requests", ["assignee_id"], name: "index_merge_requests_on_assignee_id", using: :btree
@@ -861,12 +860,11 @@ ActiveRecord::Schema.define(version: 20160712171823) do
   add_index "projects", ["visibility_level"], name: "index_projects_on_visibility_level", using: :btree
 
   create_table "protected_branches", force: :cascade do |t|
-    t.integer  "project_id",                           null: false
-    t.string   "name",                                 null: false
+    t.integer  "project_id",                          null: false
+    t.string   "name",                                null: false
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.boolean  "developers_can_push",  default: false, null: false
-    t.boolean  "developers_can_merge", default: false, null: false
+    t.boolean  "developers_can_push", default: false, null: false
   end
 
   add_index "protected_branches", ["project_id"], name: "index_protected_branches_on_project_id", using: :btree
diff --git a/lib/api/helpers.rb b/lib/api/helpers.rb
index 73557cf7db6..77e407b54c5 100644
--- a/lib/api/helpers.rb
+++ b/lib/api/helpers.rb
@@ -17,7 +17,7 @@ module API
     def current_user
       @current_user ||= (find_user_by_private_token || doorkeeper_guard)
 
-      unless @current_user && Gitlab::UserAccess.new(@current_user).allowed?
+      unless @current_user && Gitlab::UserAccess.allowed?(@current_user)
         return nil
       end
 
diff --git a/lib/gitlab/access.rb b/lib/gitlab/access.rb
index de41ea415a6..831f1e635ba 100644
--- a/lib/gitlab/access.rb
+++ b/lib/gitlab/access.rb
@@ -14,10 +14,9 @@ module Gitlab
     OWNER     = 50
 
     # Branch protection settings
-    PROTECTION_NONE          = 0
-    PROTECTION_DEV_CAN_PUSH  = 1
-    PROTECTION_FULL          = 2
-    PROTECTION_DEV_CAN_MERGE = 3
+    PROTECTION_NONE         = 0
+    PROTECTION_DEV_CAN_PUSH = 1
+    PROTECTION_FULL         = 2
 
     class << self
       def values
@@ -55,7 +54,6 @@ module Gitlab
       def protection_options
         {
           "Not protected: Both developers and masters can push new commits, force push, or delete the branch." => PROTECTION_NONE,
-          "Protected against pushes: Developers cannot push new commits, but are allowed to accept merge requests to the branch." => PROTECTION_DEV_CAN_MERGE,
           "Partially protected: Developers can push new commits, but cannot force push or delete the branch. Masters can do all of those." => PROTECTION_DEV_CAN_PUSH,
           "Fully protected: Developers cannot push new commits, force push, or delete the branch. Only masters can do any of those." => PROTECTION_FULL,
         }
diff --git a/lib/gitlab/checks/change_access.rb b/lib/gitlab/checks/change_access.rb
deleted file mode 100644
index 5551fac4b8b..00000000000
--- a/lib/gitlab/checks/change_access.rb
+++ /dev/null
@@ -1,96 +0,0 @@
-module Gitlab
-  module Checks
-    class ChangeAccess
-      attr_reader :user_access, :project
-
-      def initialize(change, user_access:, project:)
-        @oldrev, @newrev, @ref = change.split(' ')
-        @branch_name = branch_name(@ref)
-        @user_access = user_access
-        @project = project
-      end
-
-      def exec
-        error = protected_branch_checks || tag_checks || push_checks
-
-        if error
-          GitAccessStatus.new(false, error)
-        else
-          GitAccessStatus.new(true)
-        end
-      end
-
-      protected
-
-      def protected_branch_checks
-        return unless project.protected_branch?(@branch_name)
-
-        if forced_push? && user_access.cannot_do_action?(:force_push_code_to_protected_branches)
-          return "You are not allowed to force push code to a protected branch on this project."
-        elsif Gitlab::Git.blank_ref?(@newrev) && user_access.cannot_do_action?(:remove_protected_branches)
-          return "You are not allowed to delete protected branches from this project."
-        end
-
-        if matching_merge_request?
-          if user_access.can_merge_to_branch?(@branch_name) || user_access.can_push_to_branch?(@branch_name)
-            return
-          else
-            "You are not allowed to merge code into protected branches on this project."
-          end
-        else
-          if user_access.can_push_to_branch?(@branch_name)
-            return
-          else
-            "You are not allowed to push code to protected branches on this project."
-          end
-        end
-      end
-
-      def tag_checks
-        tag_ref = tag_name(@ref)
-
-        if tag_ref && protected_tag?(tag_ref) && user_access.cannot_do_action?(:admin_project)
-          "You are not allowed to change existing tags on this project."
-        end
-      end
-
-      def push_checks
-        if user_access.cannot_do_action?(:push_code)
-          "You are not allowed to push code to this project."
-        end
-      end
-
-      private
-
-      def protected_tag?(tag_name)
-        project.repository.tag_exists?(tag_name)
-      end
-
-      def forced_push?
-        Gitlab::Checks::ForcePush.force_push?(@project, @oldrev, @newrev)
-      end
-
-      def matching_merge_request?
-        Checks::MatchingMergeRequest.new(@newrev, @branch_name, @project).match?
-      end
-
-      def branch_name(ref)
-        ref = @ref.to_s
-        if Gitlab::Git.branch_ref?(ref)
-          Gitlab::Git.ref_name(ref)
-        else
-          nil
-        end
-      end
-
-      def tag_name(ref)
-        ref = @ref.to_s
-        if Gitlab::Git.tag_ref?(ref)
-          Gitlab::Git.ref_name(ref)
-        else
-          nil
-        end
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/checks/force_push.rb b/lib/gitlab/checks/force_push.rb
deleted file mode 100644
index dfa83a0eab3..00000000000
--- a/lib/gitlab/checks/force_push.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-module Gitlab
-  module Checks
-    class ForcePush
-      def self.force_push?(project, oldrev, newrev)
-        return false if project.empty_repo?
-
-        # Created or deleted branch
-        if Gitlab::Git.blank_ref?(oldrev) || Gitlab::Git.blank_ref?(newrev)
-          false
-        else
-          missed_refs, _ = Gitlab::Popen.popen(%W(#{Gitlab.config.git.bin_path} --git-dir=#{project.repository.path_to_repo} rev-list #{oldrev} ^#{newrev}))
-          missed_refs.split("\n").size > 0
-        end
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/checks/matching_merge_request.rb b/lib/gitlab/checks/matching_merge_request.rb
deleted file mode 100644
index 849848515da..00000000000
--- a/lib/gitlab/checks/matching_merge_request.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-module Gitlab
-  module Checks
-    class MatchingMergeRequest
-      def initialize(newrev, branch_name, project)
-        @newrev = newrev
-        @branch_name = branch_name
-        @project = project
-      end
-
-      def match?
-        @project.merge_requests
-          .with_state(:locked)
-          .where(in_progress_merge_commit_sha: @newrev, target_branch: @branch_name)
-          .exists?
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/force_push_check.rb b/lib/gitlab/force_push_check.rb
new file mode 100644
index 00000000000..93c6a5bb7f5
--- /dev/null
+++ b/lib/gitlab/force_push_check.rb
@@ -0,0 +1,15 @@
+module Gitlab
+  class ForcePushCheck
+    def self.force_push?(project, oldrev, newrev)
+      return false if project.empty_repo?
+
+      # Created or deleted branch
+      if Gitlab::Git.blank_ref?(oldrev) || Gitlab::Git.blank_ref?(newrev)
+        false
+      else
+        missed_refs, _ = Gitlab::Popen.popen(%W(#{Gitlab.config.git.bin_path} --git-dir=#{project.repository.path_to_repo} rev-list #{oldrev} ^#{newrev}))
+        missed_refs.split("\n").size > 0
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/git_access.rb b/lib/gitlab/git_access.rb
index 308f23bc9bc..7679c7e4bb8 100644
--- a/lib/gitlab/git_access.rb
+++ b/lib/gitlab/git_access.rb
@@ -1,17 +1,52 @@
-# Check a user's access to perform a git action. All public methods in this
-# class return an instance of `GitlabAccessStatus`
 module Gitlab
   class GitAccess
     DOWNLOAD_COMMANDS = %w{ git-upload-pack git-upload-archive }
     PUSH_COMMANDS = %w{ git-receive-pack }
 
-    attr_reader :actor, :project, :protocol, :user_access
+    attr_reader :actor, :project, :protocol
 
     def initialize(actor, project, protocol)
       @actor    = actor
       @project  = project
       @protocol = protocol
-      @user_access = UserAccess.new(user, project: project)
+    end
+
+    def user
+      return @user if defined?(@user)
+
+      @user =
+        case actor
+        when User
+          actor
+        when DeployKey
+          nil
+        when Key
+          actor.user
+        end
+    end
+
+    def deploy_key
+      actor if actor.is_a?(DeployKey)
+    end
+
+    def can_push_to_branch?(ref)
+      return false unless user
+
+      if project.protected_branch?(ref) && !project.developers_can_push_to_protected_branch?(ref)
+        user.can?(:push_code_to_protected_branches, project)
+      else
+        user.can?(:push_code, project)
+      end
+    end
+
+    def can_read_project?
+      if user
+        user.can?(:read_project, project)
+      elsif deploy_key
+        deploy_key.projects.include?(project)
+      else
+        false
+      end
     end
 
     def check(cmd, changes = nil)
@@ -21,11 +56,11 @@ module Gitlab
         return build_status_object(false, "No user or key was provided.")
       end
 
-      if user && !user_access.allowed?
+      if user && !user_allowed?
         return build_status_object(false, "Your account has been blocked.")
       end
 
-      unless project && (user_access.can_read_project? || deploy_key_can_read_project?)
+      unless project && can_read_project?
         return build_status_object(false, 'The project you were looking for could not be found.')
       end
 
@@ -60,7 +95,7 @@ module Gitlab
     end
 
     def user_download_access_check
-      unless user_access.can_do_action?(:download_code)
+      unless user.can?(:download_code, project)
         return build_status_object(false, "You are not allowed to download code from this project.")
       end
 
@@ -90,8 +125,46 @@ module Gitlab
       build_status_object(true)
     end
 
+    def can_user_do_action?(action)
+      @permission_cache ||= {}
+      @permission_cache[action] ||= user.can?(action, project)
+    end
+
     def change_access_check(change)
-      Checks::ChangeAccess.new(change, user_access: user_access, project: project).exec
+      oldrev, newrev, ref = change.split(' ')
+
+      action =
+        if project.protected_branch?(branch_name(ref))
+          protected_branch_action(oldrev, newrev, branch_name(ref))
+        elsif (tag_ref = tag_name(ref)) && protected_tag?(tag_ref)
+          # Prevent any changes to existing git tag unless user has permissions
+          :admin_project
+        else
+          :push_code
+        end
+
+      unless can_user_do_action?(action)
+        status =
+          case action
+          when :force_push_code_to_protected_branches
+            build_status_object(false, "You are not allowed to force push code to a protected branch on this project.")
+          when :remove_protected_branches
+            build_status_object(false, "You are not allowed to deleted protected branches from this project.")
+          when :push_code_to_protected_branches
+            build_status_object(false, "You are not allowed to push code to protected branches on this project.")
+          when :admin_project
+            build_status_object(false, "You are not allowed to change existing tags on this project.")
+          else # :push_code
+            build_status_object(false, "You are not allowed to push code to this project.")
+          end
+        return status
+      end
+
+      build_status_object(true)
+    end
+
+    def forced_push?(oldrev, newrev)
+      Gitlab::ForcePushCheck.force_push?(project, oldrev, newrev)
     end
 
     def protocol_allowed?
@@ -100,38 +173,48 @@ module Gitlab
 
     private
 
-    def matching_merge_request?(newrev, branch_name)
-      Checks::MatchingMergeRequest.new(newrev, branch_name, project).match?
+    def protected_branch_action(oldrev, newrev, branch_name)
+      # we dont allow force push to protected branch
+      if forced_push?(oldrev, newrev)
+        :force_push_code_to_protected_branches
+      elsif Gitlab::Git.blank_ref?(newrev)
+        # and we dont allow remove of protected branch
+        :remove_protected_branches
+      elsif project.developers_can_push_to_protected_branch?(branch_name)
+        :push_code
+      else
+        :push_code_to_protected_branches
+      end
     end
 
-    def deploy_key
-      actor if actor.is_a?(DeployKey)
+    def protected_tag?(tag_name)
+      project.repository.tag_exists?(tag_name)
     end
 
-    def deploy_key_can_read_project?
-      if deploy_key
-        deploy_key.projects.include?(project)
+    def user_allowed?
+      Gitlab::UserAccess.allowed?(user)
+    end
+
+    def branch_name(ref)
+      ref = ref.to_s
+      if Gitlab::Git.branch_ref?(ref)
+        Gitlab::Git.ref_name(ref)
       else
-        false
+        nil
       end
     end
 
-    protected
-
-    def user
-      return @user if defined?(@user)
-
-      @user =
-        case actor
-        when User
-          actor
-        when DeployKey
-          nil
-        when Key
-          actor.user
-        end
+    def tag_name(ref)
+      ref = ref.to_s
+      if Gitlab::Git.tag_ref?(ref)
+        Gitlab::Git.ref_name(ref)
+      else
+        nil
+      end
     end
 
+    protected
+
     def build_status_object(status, message = '')
       GitAccessStatus.new(status, message)
     end
diff --git a/lib/gitlab/git_access_wiki.rb b/lib/gitlab/git_access_wiki.rb
index f71d3575909..8672cbc0ec4 100644
--- a/lib/gitlab/git_access_wiki.rb
+++ b/lib/gitlab/git_access_wiki.rb
@@ -1,7 +1,7 @@
 module Gitlab
   class GitAccessWiki < GitAccess
     def change_access_check(change)
-      if user_access.can_do_action?(:create_wiki)
+      if user.can?(:create_wiki, project)
         build_status_object(true)
       else
         build_status_object(false, "You are not allowed to write to this project's wiki.")
diff --git a/lib/gitlab/user_access.rb b/lib/gitlab/user_access.rb
index c0f85e9b3a8..d1b42c1f9b9 100644
--- a/lib/gitlab/user_access.rb
+++ b/lib/gitlab/user_access.rb
@@ -1,23 +1,7 @@
 module Gitlab
-  class UserAccess
-    attr_reader :user, :project
-
-    def initialize(user, project: nil)
-      @user = user
-      @project = project
-    end
-
-    def can_do_action?(action)
-      @permission_cache ||= {}
-      @permission_cache[action] ||= user.can?(action, project)
-    end
-
-    def cannot_do_action?(action)
-      !can_do_action?(action)
-    end
-
-    def allowed?
-      return false if user.blank? || user.blocked?
+  module UserAccess
+    def self.allowed?(user)
+      return false if user.blocked?
 
       if user.requires_ldap_check? && user.try_obtain_ldap_lease
         return false unless Gitlab::LDAP::Access.allowed?(user)
@@ -25,31 +9,5 @@ module Gitlab
 
       true
     end
-
-    def can_push_to_branch?(ref)
-      return false unless user
-
-      if project.protected_branch?(ref) && !project.developers_can_push_to_protected_branch?(ref)
-        user.can?(:push_code_to_protected_branches, project)
-      else
-        user.can?(:push_code, project)
-      end
-    end
-
-    def can_merge_to_branch?(ref)
-      return false unless user
-
-      if project.protected_branch?(ref) && !project.developers_can_merge_to_protected_branch?(ref)
-        user.can?(:push_code_to_protected_branches, project)
-      else
-        user.can?(:push_code, project)
-      end
-    end
-
-    def can_read_project?
-      return false unless user
-
-      user.can?(:read_project, project)
-    end
   end
 end
diff --git a/spec/lib/gitlab/diff/position_tracer_spec.rb b/spec/lib/gitlab/diff/position_tracer_spec.rb
index c268f84c759..08312e60f4a 100644
--- a/spec/lib/gitlab/diff/position_tracer_spec.rb
+++ b/spec/lib/gitlab/diff/position_tracer_spec.rb
@@ -1639,8 +1639,7 @@ describe Gitlab::Diff::PositionTracer, lib: true do
           committer: committer
         }
 
-        merge_request = create(:merge_request, source_branch: second_create_file_commit.sha, target_branch: branch_name, source_project: project)
-        repository.merge(current_user, merge_request, options)
+        repository.merge(current_user, second_create_file_commit.sha, branch_name, options)
         project.commit(branch_name)
       end
 
diff --git a/spec/lib/gitlab/git_access_spec.rb b/spec/lib/gitlab/git_access_spec.rb
index db33c7a22bb..c79ba11f782 100644
--- a/spec/lib/gitlab/git_access_spec.rb
+++ b/spec/lib/gitlab/git_access_spec.rb
@@ -6,6 +6,67 @@ describe Gitlab::GitAccess, lib: true do
   let(:user) { create(:user) }
   let(:actor) { user }
 
+  describe 'can_push_to_branch?' do
+    describe 'push to none protected branch' do
+      it "returns true if user is a master" do
+        project.team << [user, :master]
+        expect(access.can_push_to_branch?("random_branch")).to be_truthy
+      end
+
+      it "returns true if user is a developer" do
+        project.team << [user, :developer]
+        expect(access.can_push_to_branch?("random_branch")).to be_truthy
+      end
+
+      it "returns false if user is a reporter" do
+        project.team << [user, :reporter]
+        expect(access.can_push_to_branch?("random_branch")).to be_falsey
+      end
+    end
+
+    describe 'push to protected branch' do
+      before do
+        @branch = create :protected_branch, project: project
+      end
+      
+      it "returns true if user is a master" do
+        project.team << [user, :master]
+        expect(access.can_push_to_branch?(@branch.name)).to be_truthy
+      end
+
+      it "returns false if user is a developer" do
+        project.team << [user, :developer]
+        expect(access.can_push_to_branch?(@branch.name)).to be_falsey
+      end
+
+      it "returns false if user is a reporter" do
+        project.team << [user, :reporter]
+        expect(access.can_push_to_branch?(@branch.name)).to be_falsey
+      end
+    end
+
+    describe 'push to protected branch if allowed for developers' do
+      before do
+        @branch = create :protected_branch, project: project, developers_can_push: true
+      end
+      
+      it "returns true if user is a master" do
+        project.team << [user, :master]
+        expect(access.can_push_to_branch?(@branch.name)).to be_truthy
+      end
+
+      it "returns true if user is a developer" do
+        project.team << [user, :developer]
+        expect(access.can_push_to_branch?(@branch.name)).to be_truthy
+      end
+
+      it "returns false if user is a reporter" do
+        project.team << [user, :reporter]
+        expect(access.can_push_to_branch?(@branch.name)).to be_falsey
+      end
+    end
+  end
+
   describe '#check with single protocols allowed' do
     def disable_protocol(protocol)
       settings = ::ApplicationSetting.create_from_defaults
@@ -99,145 +160,103 @@ describe Gitlab::GitAccess, lib: true do
   end
 
   describe 'push_access_check' do
-    before { merge_into_protected_branch }
-    let(:unprotected_branch) { FFaker::Internet.user_name }
+    def protect_feature_branch
+      create(:protected_branch, name: 'feature', project: project)
+    end
 
-    let(:changes) do
-      { push_new_branch: "#{Gitlab::Git::BLANK_SHA} 570e7b2ab refs/heads/wow",
+    def changes
+      {
+        push_new_branch: "#{Gitlab::Git::BLANK_SHA} 570e7b2ab refs/heads/wow",
         push_master: '6f6d7e7ed 570e7b2ab refs/heads/master',
         push_protected_branch: '6f6d7e7ed 570e7b2ab refs/heads/feature',
         push_remove_protected_branch: "570e7b2ab #{Gitlab::Git::BLANK_SHA} "\
                                       'refs/heads/feature',
         push_tag: '6f6d7e7ed 570e7b2ab refs/tags/v1.0.0',
         push_new_tag: "#{Gitlab::Git::BLANK_SHA} 570e7b2ab refs/tags/v7.8.9",
-        push_all: ['6f6d7e7ed 570e7b2ab refs/heads/master', '6f6d7e7ed 570e7b2ab refs/heads/feature'],
-        merge_into_protected_branch: "0b4bc9a #{merge_into_protected_branch} refs/heads/feature" }
+        push_all: ['6f6d7e7ed 570e7b2ab refs/heads/master', '6f6d7e7ed 570e7b2ab refs/heads/feature']
+      }
     end
 
-    def stub_git_hooks
-      # Running the `pre-receive` hook is expensive, and not necessary for this test.
-      allow_any_instance_of(GitHooksService).to receive(:execute).and_yield
+    def self.permissions_matrix
+      {
+        master: {
+          push_new_branch: true,
+          push_master: true,
+          push_protected_branch: true,
+          push_remove_protected_branch: false,
+          push_tag: true,
+          push_new_tag: true,
+          push_all: true,
+        },
+
+        developer: {
+          push_new_branch: true,
+          push_master: true,
+          push_protected_branch: false,
+          push_remove_protected_branch: false,
+          push_tag: false,
+          push_new_tag: true,
+          push_all: false,
+        },
+
+        reporter: {
+          push_new_branch: false,
+          push_master: false,
+          push_protected_branch: false,
+          push_remove_protected_branch: false,
+          push_tag: false,
+          push_new_tag: false,
+          push_all: false,
+        },
+
+        guest: {
+          push_new_branch: false,
+          push_master: false,
+          push_protected_branch: false,
+          push_remove_protected_branch: false,
+          push_tag: false,
+          push_new_tag: false,
+          push_all: false,
+        }
+      }
     end
 
-    def merge_into_protected_branch
-      @protected_branch_merge_commit ||= begin
-        stub_git_hooks
-        project.repository.add_branch(user, unprotected_branch, 'feature')
-        target_branch = project.repository.lookup('feature')
-        source_branch = project.repository.commit_file(user, FFaker::InternetSE.login_user_name, FFaker::HipsterIpsum.paragraph, FFaker::HipsterIpsum.sentence, unprotected_branch, false)
-        rugged = project.repository.rugged
-        author = { email: "email@example.com", time: Time.now, name: "Example Git User" }
-
-        merge_index = rugged.merge_commits(target_branch, source_branch)
-        Rugged::Commit.create(rugged, author: author, committer: author, message: "commit message", parents: [target_branch, source_branch], tree: merge_index.write_tree(rugged))
-      end
+    def self.updated_permissions_matrix
+      updated_permissions_matrix = permissions_matrix.dup
+      updated_permissions_matrix[:developer][:push_protected_branch] = true
+      updated_permissions_matrix[:developer][:push_all] = true
+      updated_permissions_matrix
     end
 
-    def self.run_permission_checks(permissions_matrix)
-      permissions_matrix.keys.each do |role|
-        describe "#{role} access" do
-          before { project.team << [user, role] }
+    permissions_matrix.keys.each do |role|
+      describe "#{role} access" do
+        before { protect_feature_branch }
+        before { project.team << [user, role] }
 
-          permissions_matrix[role].each do |action, allowed|
-            context action do
-              subject { access.push_access_check(changes[action]) }
+        permissions_matrix[role].each do |action, allowed|
+          context action do
+            subject { access.push_access_check(changes[action]) }
 
-              it { expect(subject.allowed?).to allowed ? be_truthy : be_falsey }
-            end
+            it { expect(subject.allowed?).to allowed ? be_truthy : be_falsey }
           end
         end
       end
     end
 
-    permissions_matrix = {
-      master: {
-        push_new_branch: true,
-        push_master: true,
-        push_protected_branch: true,
-        push_remove_protected_branch: false,
-        push_tag: true,
-        push_new_tag: true,
-        push_all: true,
-        merge_into_protected_branch: true
-      },
-
-      developer: {
-        push_new_branch: true,
-        push_master: true,
-        push_protected_branch: false,
-        push_remove_protected_branch: false,
-        push_tag: false,
-        push_new_tag: true,
-        push_all: false,
-        merge_into_protected_branch: false
-      },
-
-      reporter: {
-        push_new_branch: false,
-        push_master: false,
-        push_protected_branch: false,
-        push_remove_protected_branch: false,
-        push_tag: false,
-        push_new_tag: false,
-        push_all: false,
-        merge_into_protected_branch: false
-      },
-
-      guest: {
-        push_new_branch: false,
-        push_master: false,
-        push_protected_branch: false,
-        push_remove_protected_branch: false,
-        push_tag: false,
-        push_new_tag: false,
-        push_all: false,
-        merge_into_protected_branch: false
-      }
-    }
-
-    [['feature', 'exact'], ['feat*', 'wildcard']].each do |protected_branch_name, protected_branch_type|
-      context do
-        before { create(:protected_branch, name: protected_branch_name, project: project) }
-
-        run_permission_checks(permissions_matrix)
-      end
-
-      context "when 'developers can push' is turned on for the #{protected_branch_type} protected branch" do
-        before { create(:protected_branch, name: protected_branch_name, developers_can_push: true, project: project) }
-
-        run_permission_checks(permissions_matrix.deep_merge(developer: { push_protected_branch: true, push_all: true, merge_into_protected_branch: true }))
-      end
-
-      context "when 'developers can merge' is turned on for the #{protected_branch_type} protected branch" do
-        before { create(:protected_branch, name: protected_branch_name, developers_can_merge: true, project: project) }
-
-        context "when a merge request exists for the given source/target branch" do
-          context "when the merge request is in progress" do
-            before do
-              create(:merge_request, source_project: project, source_branch: unprotected_branch, target_branch: 'feature', state: 'locked', in_progress_merge_commit_sha: merge_into_protected_branch)
-            end
+    context "with enabled developers push to protected branches " do
+      updated_permissions_matrix.keys.each do |role|
+        describe "#{role} access" do
+          before { create(:protected_branch, name: 'feature', developers_can_push: true, project: project) }
+          before { project.team << [user, role] }
 
-            run_permission_checks(permissions_matrix.deep_merge(developer: { merge_into_protected_branch: true }))
-          end
+          updated_permissions_matrix[role].each do |action, allowed|
+            context action do
+              subject { access.push_access_check(changes[action]) }
 
-          context "when the merge request is not in progress" do
-            before do
-              create(:merge_request, source_project: project, source_branch: unprotected_branch, target_branch: 'feature', in_progress_merge_commit_sha: nil)
+              it { expect(subject.allowed?).to allowed ? be_truthy : be_falsey }
             end
-
-            run_permission_checks(permissions_matrix.deep_merge(developer: { merge_into_protected_branch: false }))
           end
         end
-
-        context "when a merge request does not exist for the given source/target branch" do
-          run_permission_checks(permissions_matrix.deep_merge(developer: { merge_into_protected_branch: false }))
-        end
-      end
-
-      context "when 'developers can merge' and 'developers can push' are turned on for the #{protected_branch_type} protected branch" do
-        before { create(:protected_branch, name: protected_branch_name, developers_can_merge: true, developers_can_push: true, project: project) }
-
-        run_permission_checks(permissions_matrix.deep_merge(developer: { push_protected_branch: true, push_all: true, merge_into_protected_branch: true }))
       end
     end
   end
diff --git a/spec/lib/gitlab/user_access_spec.rb b/spec/lib/gitlab/user_access_spec.rb
deleted file mode 100644
index aa9ec243498..00000000000
--- a/spec/lib/gitlab/user_access_spec.rb
+++ /dev/null
@@ -1,88 +0,0 @@
-require 'spec_helper'
-
-describe Gitlab::UserAccess, lib: true do
-  let(:access) { Gitlab::UserAccess.new(user, project: project) }
-  let(:project) { create(:project) }
-  let(:user) { create(:user) }
-
-  describe 'can_push_to_branch?' do
-    describe 'push to none protected branch' do
-      it 'returns true if user is a master' do
-        project.team << [user, :master]
-        expect(access.can_push_to_branch?('random_branch')).to be_truthy
-      end
-
-      it 'returns true if user is a developer' do
-        project.team << [user, :developer]
-        expect(access.can_push_to_branch?('random_branch')).to be_truthy
-      end
-
-      it 'returns false if user is a reporter' do
-        project.team << [user, :reporter]
-        expect(access.can_push_to_branch?('random_branch')).to be_falsey
-      end
-    end
-
-    describe 'push to protected branch' do
-      let(:branch) { create :protected_branch, project: project }
-
-      it 'returns true if user is a master' do
-        project.team << [user, :master]
-        expect(access.can_push_to_branch?(branch.name)).to be_truthy
-      end
-
-      it 'returns false if user is a developer' do
-        project.team << [user, :developer]
-        expect(access.can_push_to_branch?(branch.name)).to be_falsey
-      end
-
-      it 'returns false if user is a reporter' do
-        project.team << [user, :reporter]
-        expect(access.can_push_to_branch?(branch.name)).to be_falsey
-      end
-    end
-
-    describe 'push to protected branch if allowed for developers' do
-      before do
-        @branch = create :protected_branch, project: project, developers_can_push: true
-      end
-
-      it 'returns true if user is a master' do
-        project.team << [user, :master]
-        expect(access.can_push_to_branch?(@branch.name)).to be_truthy
-      end
-
-      it 'returns true if user is a developer' do
-        project.team << [user, :developer]
-        expect(access.can_push_to_branch?(@branch.name)).to be_truthy
-      end
-
-      it 'returns false if user is a reporter' do
-        project.team << [user, :reporter]
-        expect(access.can_push_to_branch?(@branch.name)).to be_falsey
-      end
-    end
-
-    describe 'merge to protected branch if allowed for developers' do
-      before do
-        @branch = create :protected_branch, project: project, developers_can_merge: true
-      end
-
-      it 'returns true if user is a master' do
-        project.team << [user, :master]
-        expect(access.can_merge_to_branch?(@branch.name)).to be_truthy
-      end
-
-      it 'returns true if user is a developer' do
-        project.team << [user, :developer]
-        expect(access.can_merge_to_branch?(@branch.name)).to be_truthy
-      end
-
-      it 'returns false if user is a reporter' do
-        project.team << [user, :reporter]
-        expect(access.can_merge_to_branch?(@branch.name)).to be_falsey
-      end
-    end
-
-  end
-end
diff --git a/spec/models/repository_spec.rb b/spec/models/repository_spec.rb
index e14cec589fe..b39b958450c 100644
--- a/spec/models/repository_spec.rb
+++ b/spec/models/repository_spec.rb
@@ -4,17 +4,16 @@ describe Repository, models: true do
   include RepoHelpers
   TestBlob = Struct.new(:name)
 
-  let(:project) { create(:project) }
-  let(:repository) { project.repository }
+  let(:repository) { create(:project).repository }
   let(:user) { create(:user) }
   let(:commit_options) do
     author = repository.user_to_committer(user)
     { message: 'Test message', committer: author, author: author }
   end
   let(:merge_commit) do
-    merge_request = create(:merge_request, source_branch: 'feature', target_branch: 'master', source_project: project)
-    merge_commit_id = repository.merge(user, merge_request, commit_options)
-    repository.commit(merge_commit_id)
+    source_sha = repository.find_branch('feature').target
+    merge_commit_sha = repository.merge(user, source_sha, 'master', commit_options)
+    repository.commit(merge_commit_sha)
   end
 
   describe '#branch_names_contains' do
diff --git a/spec/requests/api/api_helpers_spec.rb b/spec/requests/api/api_helpers_spec.rb
index 3d5c19aeff3..83025953889 100644
--- a/spec/requests/api/api_helpers_spec.rb
+++ b/spec/requests/api/api_helpers_spec.rb
@@ -49,7 +49,7 @@ describe API::Helpers, api: true do
 
       it "should return nil for a user without access" do
         env[API::Helpers::PRIVATE_TOKEN_HEADER] = user.private_token
-        allow_any_instance_of(Gitlab::UserAccess).to receive(:allowed?).and_return(false)
+        allow(Gitlab::UserAccess).to receive(:allowed?).and_return(false)
         expect(current_user).to be_nil
       end
 
@@ -73,7 +73,7 @@ describe API::Helpers, api: true do
 
       it "should return nil for a user without access" do
         env[API::Helpers::PRIVATE_TOKEN_HEADER] = personal_access_token.token
-        allow_any_instance_of(Gitlab::UserAccess).to receive(:allowed?).and_return(false)
+        allow(Gitlab::UserAccess).to receive(:allowed?).and_return(false)
         expect(current_user).to be_nil
       end
 
diff --git a/spec/services/git_push_service_spec.rb b/spec/services/git_push_service_spec.rb
index 47c0580e0f0..afabeed4a80 100644
--- a/spec/services/git_push_service_spec.rb
+++ b/spec/services/git_push_service_spec.rb
@@ -224,7 +224,7 @@ describe GitPushService, services: true do
       it "when pushing a branch for the first time" do
         expect(project).to receive(:execute_hooks)
         expect(project.default_branch).to eq("master")
-        expect(project.protected_branches).to receive(:create).with({ name: "master", developers_can_push: false, developers_can_merge: false })
+        expect(project.protected_branches).to receive(:create).with({ name: "master", developers_can_push: false })
         execute_service(project, user, @blankrev, 'newrev', 'refs/heads/master' )
       end
 
@@ -242,17 +242,7 @@ describe GitPushService, services: true do
 
         expect(project).to receive(:execute_hooks)
         expect(project.default_branch).to eq("master")
-        expect(project.protected_branches).to receive(:create).with({ name: "master", developers_can_push: true, developers_can_merge: false })
-
-        execute_service(project, user, @blankrev, 'newrev', 'refs/heads/master')
-      end
-
-      it "when pushing a branch for the first time with default branch protection set to 'developers can merge'" do
-        stub_application_setting(default_branch_protection: Gitlab::Access::PROTECTION_DEV_CAN_MERGE)
-
-        expect(project).to receive(:execute_hooks)
-        expect(project.default_branch).to eq("master")
-        expect(project.protected_branches).to receive(:create).with({ name: "master", developers_can_push: false, developers_can_merge: true })
+        expect(project.protected_branches).to receive(:create).with({ name: "master", developers_can_push: true })
         execute_service(project, user, @blankrev, 'newrev', 'refs/heads/master' )
       end
 
diff --git a/spec/services/merge_requests/refresh_service_spec.rb b/spec/services/merge_requests/refresh_service_spec.rb
index ce643b3f860..06f56d85aa8 100644
--- a/spec/services/merge_requests/refresh_service_spec.rb
+++ b/spec/services/merge_requests/refresh_service_spec.rb
@@ -88,7 +88,8 @@ describe MergeRequests::RefreshService, services: true do
         # Merge master -> feature branch
         author = { email: 'test@gitlab.com', time: Time.now, name: "Me" }
         commit_options = { message: 'Test message', committer: author, author: author }
-        @project.repository.merge(@user, @merge_request, commit_options)
+        master_commit = @project.repository.commit('master')
+        @project.repository.merge(@user, master_commit.id, 'feature', commit_options)
         commit = @project.repository.commit('feature')
         service.new(@project, @user).execute(@oldrev, commit.id, 'refs/heads/feature')
         reload_mrs