diff --git a/CHANGELOG b/CHANGELOG
index c0a98522fd48297caef5214adb0001555c0e64d7..8801cd6359f3a14a8026b66e3efab2571de84956 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -45,7 +45,10 @@ v 7.14.0 (unreleased)
   - Remove redis-store TTL monkey patch
   - Add support for CI skipped status
   - Fetch code from forks to refs/merge-requests/:id/head when merge request created
+  - Remove satellites
   - Remove comments and email addresses when publicly exposing ssh keys (Zeger-Jan van de Weg)
+  - Improve MR merge widget text and UI consistency.
+  - Improve text in MR "How To Merge" modal.
   - Cache all events
   - Order commits by date when comparing branches
   - Fix bug causing error when the target branch of a symbolic ref was deleted
@@ -196,6 +199,7 @@ v 7.12.0
   - Add SAML support as an omniauth provider
   - Allow to configure a URL to show after sign out
   - Add an option to automatically sign-in with an Omniauth provider
+  - Better performance for web editor (switched from satellites to rugged)
   - GitLab CI service sends .gitlab-ci.yml in each push call
   - When remove project - move repository and schedule it removal
   - Improve group removing logic
diff --git a/Gemfile.lock b/Gemfile.lock
index 9c3a8e763a54ac46b639caaeb809840f3b624dc6..5ba6948cbc1aafe35a00b547dda6712f22983e5c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -875,4 +875,4 @@ DEPENDENCIES
   wikicloth (= 0.8.1)
 
 BUNDLED WITH
-   1.10.5
+   1.10.4
diff --git a/app/assets/javascripts/merge_request_widget.js.coffee b/app/assets/javascripts/merge_request_widget.js.coffee
index 762eec63dee317e3501cacbd287512abb2db1069..995a2f24093357901806713a49774fdb2d3018bb 100644
--- a/app/assets/javascripts/merge_request_widget.js.coffee
+++ b/app/assets/javascripts/merge_request_widget.js.coffee
@@ -19,7 +19,7 @@ class @MergeRequestWidget
           when 'merged'
             location.reload()
           else
-            setTimeout(merge_request_widget.mergeInProgress, 3000)
+            setTimeout(merge_request_widget.mergeInProgress, 2000)
       dataType: 'json'
 
   getMergeStatus: ->
@@ -49,10 +49,8 @@ class @MergeRequestWidget
       @setMergeButtonClass('btn-danger')
 
   showCiCoverage: (coverage) ->
-    cov_html = $('<span>')
-    cov_html.addClass('ci-coverage')
-    cov_html.text('Coverage ' + coverage + '%')
-    $('.ci_widget:visible').append(cov_html)
+    text = 'Coverage ' + coverage + '%'
+    $('.ci_widget:visible .ci-coverage').text(text)
 
   setMergeButtonClass: (css_class) ->
     $('.accept_merge_request').removeClass("btn-create").addClass(css_class)
diff --git a/app/assets/stylesheets/pages/merge_requests.scss b/app/assets/stylesheets/pages/merge_requests.scss
index baba6f32129860f3aa6f281331d4ad528b3f107c..30bbec7b795b53ccf7fe56de8ac5737085ce48bf 100644
--- a/app/assets/stylesheets/pages/merge_requests.scss
+++ b/app/assets/stylesheets/pages/merge_requests.scss
@@ -1,9 +1,15 @@
-
-  /**
-   * MR -> show: Automerge widget
+/**
+ * MR -> show: Automerge widget
  *
  */
 .mr-state-widget {
+  background: #FAFAFA;
+  margin-bottom: 20px;
+  color: #666;
+  border: 1px solid #e5e5e5;
+  @include box-shadow(0 1px 1px rgba(0, 0, 0, 0.05));
+  @include border-radius(3px);
+
   form {
     margin-bottom: 0;
     .clearfix {
@@ -20,16 +26,67 @@
       display: inline-block;
       margin: 0;
       margin-left: 20px;
-      padding: 10px 0;
+      padding: 5px;
       line-height: 20px;
-      font-weight: bold;
 
       .remove_source_checkbox {
         margin: 0;
-        font-weight: bold;
       }
     }
   }
+
+  .ci_widget {
+    border-bottom: 1px solid #EEE;
+
+    i {
+      margin-right: 4px;
+    }
+
+    &.ci-success {
+      color: $gl-success;
+    }
+
+    &.ci-skipped {
+      background-color: #eee;
+      color: #888;
+    }
+
+    &.ci-pending,
+    &.ci-running {
+      color: $gl-warning;
+    }
+
+    &.ci-failed,
+    &.ci-canceled,
+    &.ci-error {
+      color: $gl-danger;
+    }
+  }
+
+  .mr-widget-body,
+  .ci_widget,
+  .mr-widget-footer {
+    padding: 15px;
+  }
+
+  .mr-widget-body {
+    h4 {
+      font-weight: bold;
+      margin: 5px 0;
+    }
+
+    p:last-child {
+      margin-bottom: 0;
+    }
+  }
+
+  .mr-widget-footer {
+    border-top: 1px solid #EEE;
+  }
+
+  .ci-coverage {
+    float: right;
+  }
 }
 
 @media(min-width: $screen-sm-max) {
@@ -61,23 +118,10 @@
 }
 
 .label-branch {
-  @include border-radius(4px);
-  padding: 3px 4px;
-  border: none;
-  background: $hover;
-  color: #333;
+  color: #222;
   font-family: $monospace_font;
-  font-weight: normal;
+  font-weight: bold;
   overflow: hidden;
-
-  .label-project {
-    @include border-radius-left(4px);
-    padding: 3px 4px;
-    background: #279;
-    position: relative;
-    left: -4px;
-    letter-spacing: -1px;
-  }
 }
 
 .mr-list {
@@ -124,64 +168,6 @@
   display: none;
 }
 
-.mr-state-widget {
-  font-size: 13px;
-  background: #FAFAFA;
-  margin-bottom: 20px;
-  color: #666;
-  border: 1px solid #e5e5e5;
-  @include box-shadow(0 1px 1px rgba(0, 0, 0, 0.05));
-  @include border-radius(3px);
-
-  .ci_widget {
-    padding: 10px 15px;
-    font-size: 15px;
-    border-bottom: 1px solid #EEE;
-
-    &.ci-success {
-      color: $gl-success;
-    }
-
-    &.ci-skipped {
-      background-color: #eee;
-      color: #888;
-    }
-
-    &.ci-pending,
-    &.ci-running {
-      color: $gl-warning;
-    }
-
-    &.ci-failed,
-    &.ci-canceled,
-    &.ci-error {
-      color: $gl-danger;
-    }
-  }
-
-  .mr-widget-body {
-    padding: 10px 15px;
-
-    h4 {
-      font-weight: bold;
-      margin: 5px 0;
-    }
-
-    p:last-child {
-      margin-bottom: 0;
-    }
-  }
-
-  .mr-widget-footer {
-    padding: 10px 15px;
-    border-top: 1px solid #EEE;
-  }
-
-  .ci-coverage {
-    float: right;
-  }
-}
-
 .merge-request-show-labels {
   a {
     margin-right: 5px;
@@ -196,3 +182,7 @@
 .merge-request-form .select2-container {
   width: 250px !important;
 }
+
+#modal_merge_info .modal-dialog {
+  width: 600px;
+}
diff --git a/app/controllers/projects/blob_controller.rb b/app/controllers/projects/blob_controller.rb
index b762518d377fb5dc2ab6670b53f8d3513b4a6e56..100d3d3b3174d3e5103f13090281f5e415e83818 100644
--- a/app/controllers/projects/blob_controller.rb
+++ b/app/controllers/projects/blob_controller.rb
@@ -13,27 +13,20 @@ class Projects::BlobController < Projects::ApplicationController
   before_action :commit, except: [:new, :create]
   before_action :blob, except: [:new, :create]
   before_action :from_merge_request, only: [:edit, :update]
-  before_action :after_edit_path, only: [:edit, :update]
   before_action :require_branch_head, only: [:edit, :update]
+  before_action :editor_variables, except: [:show, :preview, :diff]
+  before_action :after_edit_path, only: [:edit, :update]
 
   def new
     commit unless @repository.empty?
   end
 
   def create
-    file_path = File.join(@path, File.basename(params[:file_name]))
-    result = Files::CreateService.new(
-      @project,
-      current_user,
-      params.merge(new_branch: sanitized_new_branch_name),
-      @ref,
-      file_path
-    ).execute
+    result = Files::CreateService.new(@project, current_user, @commit_params).execute
 
     if result[:status] == :success
       flash[:notice] = "Your changes have been successfully committed"
-      ref = sanitized_new_branch_name.presence || @ref
-      redirect_to namespace_project_blob_path(@project.namespace, @project, File.join(ref, file_path))
+      redirect_to namespace_project_blob_path(@project.namespace, @project, File.join(@target_branch, @file_path))
     else
       flash[:alert] = result[:message]
       render :new
@@ -48,22 +41,10 @@ class Projects::BlobController < Projects::ApplicationController
   end
 
   def update
-    result = Files::UpdateService.
-      new(
-        @project,
-        current_user,
-        params.merge(new_branch: sanitized_new_branch_name),
-        @ref,
-        @path
-      ).execute
+    result = Files::UpdateService.new(@project, current_user, @commit_params).execute
 
     if result[:status] == :success
       flash[:notice] = "Your changes have been successfully committed"
-
-      if from_merge_request
-        from_merge_request.reload_code
-      end
-
       redirect_to after_edit_path
     else
       flash[:alert] = result[:message]
@@ -80,12 +61,11 @@ class Projects::BlobController < Projects::ApplicationController
   end
 
   def destroy
-    result = Files::DeleteService.new(@project, current_user, params, @ref, @path).execute
+    result = Files::DeleteService.new(@project, current_user, @commit_params).execute
 
     if result[:status] == :success
       flash[:notice] = "Your changes have been successfully committed"
-      redirect_to namespace_project_tree_path(@project.namespace, @project,
-                                              @ref)
+      redirect_to namespace_project_tree_path(@project.namespace, @project, @target_branch)
     else
       flash[:alert] = result[:message]
       render :show
@@ -135,7 +115,6 @@ class Projects::BlobController < Projects::ApplicationController
     @id = params[:id]
     @ref, @path = extract_ref(@id)
 
-
   rescue InvalidPathError
     not_found!
   end
@@ -145,8 +124,8 @@ class Projects::BlobController < Projects::ApplicationController
       if from_merge_request
         diffs_namespace_project_merge_request_path(from_merge_request.target_project.namespace, from_merge_request.target_project, from_merge_request) +
           "#file-path-#{hexdigest(@path)}"
-      elsif sanitized_new_branch_name.present?
-        namespace_project_blob_path(@project.namespace, @project, File.join(sanitized_new_branch_name, @path))
+      elsif @target_branch.present?
+        namespace_project_blob_path(@project.namespace, @project, File.join(@target_branch, @path))
       else
         namespace_project_blob_path(@project.namespace, @project, @id)
       end
@@ -160,4 +139,25 @@ class Projects::BlobController < Projects::ApplicationController
   def sanitized_new_branch_name
     @new_branch ||= sanitize(strip_tags(params[:new_branch]))
   end
+
+  def editor_variables
+    @current_branch = @ref
+    @target_branch = (sanitized_new_branch_name || @ref)
+
+    @file_path =
+      if action_name.to_s == 'create'
+        File.join(@path, File.basename(params[:file_name]))
+      else
+        @path
+      end
+
+    @commit_params = {
+      file_path: @file_path,
+      current_branch: @current_branch,
+      target_branch: @target_branch,
+      commit_message: params[:commit_message],
+      file_content: params[:content],
+      file_content_encoding: params[:encoding]
+    }
+  end
 end
diff --git a/app/controllers/projects/compare_controller.rb b/app/controllers/projects/compare_controller.rb
index c5f085c236f70d4acb35f4d9a92d77130f7fb870..d9b3adae95b28cdf34fe77771a5b5d277ac411d3 100644
--- a/app/controllers/projects/compare_controller.rb
+++ b/app/controllers/projects/compare_controller.rb
@@ -13,13 +13,8 @@ class Projects::CompareController < Projects::ApplicationController
     base_ref = Addressable::URI.unescape(params[:from])
     @ref = head_ref = Addressable::URI.unescape(params[:to])
 
-    compare_result = CompareService.new.execute(
-      current_user,
-      @project,
-      head_ref,
-      @project,
-      base_ref
-    )
+    compare_result = CompareService.new.
+      execute(@project, head_ref, @project, base_ref)
 
     @commits = compare_result.commits
     @diffs = compare_result.diffs
diff --git a/app/controllers/projects/merge_requests_controller.rb b/app/controllers/projects/merge_requests_controller.rb
index d12651983187b65eb4a14e88704a1ea49a33b332..f3054881dafd02d41bdbac7c92b6d08df802524f 100644
--- a/app/controllers/projects/merge_requests_controller.rb
+++ b/app/controllers/projects/merge_requests_controller.rb
@@ -1,9 +1,7 @@
-require 'gitlab/satellite/satellite'
-
 class Projects::MergeRequestsController < Projects::ApplicationController
   before_action :module_enabled
   before_action :merge_request, only: [
-    :edit, :update, :show, :diffs, :commits, :automerge, :automerge_check,
+    :edit, :update, :show, :diffs, :commits, :merge, :merge_check,
     :ci_status, :toggle_subscription
   ]
   before_action :closes_issues, only: [:edit, :update, :show, :diffs, :commits]
@@ -137,7 +135,7 @@ class Projects::MergeRequestsController < Projects::ApplicationController
     end
   end
 
-  def automerge_check
+  def merge_check
     if @merge_request.unchecked?
       @merge_request.check_if_can_be_merged
     end
@@ -147,11 +145,11 @@ class Projects::MergeRequestsController < Projects::ApplicationController
     render partial: "projects/merge_requests/widget/show.html.haml", layout: false
   end
 
-  def automerge
+  def merge
     return access_denied! unless @merge_request.can_be_merged_by?(current_user)
 
-    if @merge_request.automergeable?
-      AutoMergeWorker.perform_async(@merge_request.id, current_user.id, params)
+    if @merge_request.mergeable?
+      MergeWorker.perform_async(@merge_request.id, current_user.id, params)
       @status = true
     else
       @status = false
diff --git a/app/helpers/merge_requests_helper.rb b/app/helpers/merge_requests_helper.rb
index 45ee4fe4135a925dca0fb7ba80d2032a388e9629..f8169b4f2887bffc83ff1ceec919d64a611188e2 100644
--- a/app/helpers/merge_requests_helper.rb
+++ b/app/helpers/merge_requests_helper.rb
@@ -61,4 +61,14 @@ module MergeRequestsHelper
       }
     )
   end
+
+  def source_branch_with_namespace(merge_request)
+    if merge_request.for_fork?
+      namespace = link_to(merge_request.source_project_namespace,
+        project_path(merge_request.source_project))
+      namespace + ":#{merge_request.source_branch}"
+    else
+      merge_request.source_branch
+    end
+  end
 end
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index 324d1795ab4d90c56ea3c2452d7c451dd9c52aeb..467b90861f977ec0f075fcb01bff0faf1b201759 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -41,8 +41,6 @@ class MergeRequest < ActiveRecord::Base
 
   delegate :commits, :diffs, :last_commit, :last_commit_short_sha, to: :merge_request_diff, prefix: nil
 
-  attr_accessor :should_remove_source_branch
-
   # When this attribute is true some MR validation is ignored
   # It allows us to close or modify broken merge requests
   attr_accessor :allow_broken
@@ -57,7 +55,7 @@ class MergeRequest < ActiveRecord::Base
       transition [:reopened, :opened] => :closed
     end
 
-    event :merge do
+    event :mark_as_merged do
       transition [:reopened, :opened, :locked] => :merged
     end
 
@@ -205,7 +203,10 @@ class MergeRequest < ActiveRecord::Base
   end
 
   def check_if_can_be_merged
-    if Gitlab::Satellite::MergeAction.new(self.author, self).can_be_merged?
+    can_be_merged =
+      project.repository.can_be_merged?(source_sha, target_branch)
+
+    if can_be_merged
       mark_as_mergeable
     else
       mark_as_unmergeable
@@ -220,18 +221,6 @@ class MergeRequest < ActiveRecord::Base
     self.target_project.events.where(target_id: self.id, target_type: "MergeRequest", action: Event::CLOSED).last
   end
 
-  def automerge!(current_user, commit_message = nil)
-    return unless automergeable?
-
-    MergeRequests::AutoMergeService.
-      new(target_project, current_user).
-      execute(self, commit_message)
-  end
-
-  def remove_source_branch?
-    self.should_remove_source_branch && !self.source_project.root_ref?(self.source_branch) && !self.for_fork?
-  end
-
   def open?
     opened? || reopened?
   end
@@ -240,11 +229,11 @@ class MergeRequest < ActiveRecord::Base
     title =~ /\A\[?WIP\]?:? /i
   end
 
-  def automergeable?
+  def mergeable?
     open? && !work_in_progress? && can_be_merged?
   end
 
-  def automerge_status
+  def gitlab_merge_status
     if work_in_progress?
       "work_in_progress"
     else
@@ -271,14 +260,14 @@ class MergeRequest < ActiveRecord::Base
   #
   # see "git diff"
   def to_diff(current_user)
-    Gitlab::Satellite::MergeAction.new(current_user, self).diff_in_satellite
+    target_project.repository.diff_text(target_branch, source_sha)
   end
 
   # Returns the commit as a series of email patches.
   #
   # see "git format-patch"
   def to_patch(current_user)
-    Gitlab::Satellite::MergeAction.new(current_user, self).format_patch
+    target_project.repository.format_patch(target_branch, source_sha)
   end
 
   def hook_attrs
@@ -429,4 +418,30 @@ class MergeRequest < ActiveRecord::Base
       "Open"
     end
   end
+
+  def target_sha
+    @target_sha ||= target_project.
+      repository.commit(target_branch).sha
+  end
+
+  def source_sha
+    commits.first.sha
+  end
+
+  def fetch_ref
+    target_project.repository.fetch_ref(
+      source_project.repository.path_to_repo,
+      "refs/heads/#{source_branch}",
+      "refs/merge-requests/#{iid}/head"
+    )
+  end
+
+  def in_locked_state
+    begin
+      lock_mr
+      yield
+    ensure
+      unlock_mr if locked?
+    end
+  end
 end
diff --git a/app/models/merge_request_diff.rb b/app/models/merge_request_diff.rb
index df1c2b78758225484d2e73c5615a386c784ee266..e317c8eac4d16bd1ddbd041acfebd7143ecd557a 100644
--- a/app/models/merge_request_diff.rb
+++ b/app/models/merge_request_diff.rb
@@ -16,9 +16,8 @@ require Rails.root.join("app/models/commit")
 class MergeRequestDiff < ActiveRecord::Base
   include Sortable
 
-  # Prevent store of diff
-  # if commits amount more then 200
-  COMMITS_SAFE_SIZE = 200
+  # Prevent store of diff if commits amount more then 500
+  COMMITS_SAFE_SIZE = 500
 
   attr_reader :commits, :diffs
 
@@ -124,12 +123,12 @@ class MergeRequestDiff < ActiveRecord::Base
     if new_diffs.any?
       if new_diffs.size > Commit::DIFF_HARD_LIMIT_FILES
         self.state = :overflow_diff_files_limit
-        new_diffs = []
+        new_diffs = new_diffs.first[Commit::DIFF_HARD_LIMIT_LINES]
       end
 
       if new_diffs.sum { |diff| diff.diff.lines.count } > Commit::DIFF_HARD_LIMIT_LINES
         self.state = :overflow_diff_lines_limit
-        new_diffs = []
+        new_diffs = new_diffs.first[Commit::DIFF_HARD_LIMIT_LINES]
       end
     end
 
@@ -160,12 +159,21 @@ class MergeRequestDiff < ActiveRecord::Base
   private
 
   def compare_result
-    @compare_result ||= CompareService.new.execute(
-      merge_request.author,
-      merge_request.source_project,
-      merge_request.source_branch,
-      merge_request.target_project,
-      merge_request.target_branch,
-    )
+    @compare_result ||=
+      begin
+        # Update ref for merge request
+        merge_request.fetch_ref
+
+        # Get latest sha of branch from source project
+        source_sha = merge_request.source_project.commit(source_branch).sha
+
+        Gitlab::CompareResult.new(
+          Gitlab::Git::Compare.new(
+            merge_request.target_project.repository.raw_repository,
+            merge_request.target_branch,
+            source_sha,
+          )
+        )
+      end
   end
 end
diff --git a/app/models/namespace.rb b/app/models/namespace.rb
index 30ffacaddeda00b0d37a71398f5d60773bc39894..161a16ca61c49fa83538291fc03f42ed838f63a0 100644
--- a/app/models/namespace.rb
+++ b/app/models/namespace.rb
@@ -118,12 +118,11 @@ class Namespace < ActiveRecord::Base
     gitlab_shell.add_namespace(path_was)
 
     if gitlab_shell.mv_namespace(path_was, path)
-      # If repositories moved successfully we need to remove old satellites
-      # and send update instructions to users.
+      # If repositories moved successfully we need to
+      # send update instructions to users.
       # However we cannot allow rollback since we moved namespace dir
       # So we basically we mute exceptions in next actions
       begin
-        gitlab_shell.rm_satellites(path_was)
         send_update_instructions
       rescue
         # Returning false does not rollback after_* transaction but gives
diff --git a/app/models/project.rb b/app/models/project.rb
index 3dc1729e812ebb48a0f83cdd142a7d72e43c502d..4628f478ca6c5cb808a2fc9c05c32d8b82c8be18 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -520,14 +520,6 @@ class Project < ActiveRecord::Base
     !repository.exists? || repository.empty?
   end
 
-  def ensure_satellite_exists
-    self.satellite.create unless self.satellite.exists?
-  end
-
-  def satellite
-    @satellite ||= Gitlab::Satellite::Satellite.new(self)
-  end
-
   def repo
     repository.raw
   end
@@ -597,14 +589,11 @@ class Project < ActiveRecord::Base
     new_path_with_namespace = File.join(namespace_dir, path)
 
     if gitlab_shell.mv_repository(old_path_with_namespace, new_path_with_namespace)
-      # If repository moved successfully we need to remove old satellite
-      # and send update instructions to users.
+      # If repository moved successfully we need to send update instructions to users.
       # However we cannot allow rollback since we moved repository
       # So we basically we mute exceptions in next actions
       begin
         gitlab_shell.mv_repository("#{old_path_with_namespace}.wiki", "#{new_path_with_namespace}.wiki")
-        gitlab_shell.rm_satellites(old_path_with_namespace)
-        ensure_satellite_exists
         send_move_instructions
         reset_events_cache
       rescue
@@ -702,7 +691,6 @@ class Project < ActiveRecord::Base
   def create_repository
     if forked?
       if gitlab_shell.fork_repository(forked_from_project.path_with_namespace, self.namespace.path)
-        ensure_satellite_exists
         true
       else
         errors.add(:base, 'Failed to fork repository via gitlab-shell')
diff --git a/app/models/project_services/gitlab_ci_service.rb b/app/models/project_services/gitlab_ci_service.rb
index 5aaa4e85cbcce8c2849b061eeb7b953dac0f8051..ecdcd48ae602476d8670fae8352fc7ed14cd718c 100644
--- a/app/models/project_services/gitlab_ci_service.rb
+++ b/app/models/project_services/gitlab_ci_service.rb
@@ -74,6 +74,8 @@ class GitlabCiService < CiService
     else
       :error
     end
+  rescue Errno::ECONNREFUSED
+    :error
   end
 
   def fork_registration(new_project, private_token)
@@ -103,6 +105,8 @@ class GitlabCiService < CiService
     if response.code == 200 and response["coverage"]
       response["coverage"]
     end
+  rescue Errno::ECONNREFUSED
+    nil
   end
 
   def build_page(sha, ref)
diff --git a/app/models/repository.rb b/app/models/repository.rb
index 0a62980f93a1b528ad39897c94691bd9be70ba5a..46efbede2a2fa3e40e8ed4a714e332a19ff23aac 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -364,6 +364,83 @@ class Repository
     @root_ref ||= raw_repository.root_ref
   end
 
+  def commit_file(user, path, content, message, ref)
+    path[0] = '' if path[0] == '/'
+
+    committer = user_to_comitter(user)
+    options = {}
+    options[:committer] = committer
+    options[:author] = committer
+    options[:commit] = {
+      message: message,
+      branch: ref
+    }
+
+    options[:file] = {
+      content: content,
+      path: path
+    }
+
+    Gitlab::Git::Blob.commit(raw_repository, options)
+  end
+
+  def remove_file(user, path, message, ref)
+    path[0] = '' if path[0] == '/'
+
+    committer = user_to_comitter(user)
+    options = {}
+    options[:committer] = committer
+    options[:author] = committer
+    options[:commit] = {
+      message: message,
+      branch: ref
+    }
+
+    options[:file] = {
+      path: path
+    }
+
+    Gitlab::Git::Blob.remove(raw_repository, options)
+  end
+
+  def user_to_comitter(user)
+    {
+      email: user.email,
+      name: user.name,
+      time: Time.now
+    }
+  end
+
+  def can_be_merged?(source_sha, target_branch)
+    our_commit = rugged.branches[target_branch].target
+    their_commit = rugged.lookup(source_sha)
+
+    if our_commit && their_commit
+      !rugged.merge_commits(our_commit, their_commit).conflicts?
+    else
+      false
+    end
+  end
+
+  def merge(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?
+
+    merge_index = rugged.merge_commits(our_commit, their_commit)
+    return false if merge_index.conflicts?
+
+    actual_options = options.merge(
+      parents: [our_commit, their_commit],
+      tree: merge_index.write_tree(rugged),
+      update_ref: "refs/heads/#{target_branch}"
+    )
+
+    Rugged::Commit.create(rugged, actual_options)
+  end
+
   def search_files(query, ref)
     offset = 2
     args = %W(git grep -i -n --before-context #{offset} --after-context #{offset} #{query} #{ref || root_ref})
@@ -397,6 +474,11 @@ class Repository
     )
   end
 
+  def fetch_ref(source_path, source_ref, target_ref)
+    args = %W(git fetch #{source_path} #{source_ref}:#{target_ref})
+    Gitlab::Popen.popen(args, path_to_repo)
+  end
+
   private
 
   def cache
diff --git a/app/services/base_service.rb b/app/services/base_service.rb
index 6d9ed345914b356688422ad6dfbd72bf44d138b0..f00ec7408b683fb6f00e6c85c38ad04364bfeef3 100644
--- a/app/services/base_service.rb
+++ b/app/services/base_service.rb
@@ -31,6 +31,10 @@ class BaseService
     SystemHooksService.new
   end
 
+  def repository
+    project.repository
+  end
+
   # Add an error to the specified model for restricted visibility levels
   def deny_visibility_level(model, denied_visibility_level = nil)
     denied_visibility_level ||= model.visibility_level
diff --git a/app/services/compare_service.rb b/app/services/compare_service.rb
index 6aa9df4b19444aa24bff360649e71aafa9cc8986..70f642baaaaeca715782c6ca00b967b8c51c66ca 100644
--- a/app/services/compare_service.rb
+++ b/app/services/compare_service.rb
@@ -1,27 +1,28 @@
+require 'securerandom'
+
 # Compare 2 branches for one repo or between repositories
 # and return Gitlab::CompareResult object that responds to commits and diffs
 class CompareService
-  def execute(current_user, source_project, source_branch, target_project, target_branch)
-    # Try to compare branches to get commits list and diffs
-    #
-    # Note: Use satellite only when need to compare between two repos
-    # because satellites are slower than operations on bare repo
-    if target_project == source_project
-      Gitlab::CompareResult.new(
-        Gitlab::Git::Compare.new(
-          target_project.repository.raw_repository,
-          target_branch,
-          source_branch,
-        )
+  def execute(source_project, source_branch, target_project, target_branch)
+    source_sha = source_project.commit(source_branch).sha
+
+    # If compare with other project we need to fetch ref first
+    unless target_project == source_project
+      random_string = SecureRandom.hex
+
+      target_project.repository.fetch_ref(
+        source_project.repository.path_to_repo,
+        "refs/heads/#{source_branch}",
+        "refs/tmp/#{random_string}/head"
       )
-    else
-      Gitlab::Satellite::CompareAction.new(
-        current_user,
-        target_project,
-        target_branch,
-        source_project,
-        source_branch
-      ).result
     end
+
+    Gitlab::CompareResult.new(
+      Gitlab::Git::Compare.new(
+        target_project.repository.raw_repository,
+        target_branch,
+        source_sha,
+      )
+    )
   end
 end
diff --git a/app/services/files/base_service.rb b/app/services/files/base_service.rb
index bd245100955887034435ac0fe1c0a0584eaec9a9..d7b40ee8906b6470e2dc0b5cedbeb818d2702c60 100644
--- a/app/services/files/base_service.rb
+++ b/app/services/files/base_service.rb
@@ -1,17 +1,80 @@
 module Files
   class BaseService < ::BaseService
-    attr_reader :ref, :path
+    class ValidationError < StandardError; end
 
-    def initialize(project, user, params, ref, path = nil)
-      @project, @current_user, @params = project, user, params.dup
-      @ref = ref
-      @path = path
+    def execute
+      @current_branch = params[:current_branch]
+      @target_branch  = params[:target_branch]
+      @commit_message = params[:commit_message]
+      @file_path      = params[:file_path]
+      @file_content   = if params[:file_content_encoding] == 'base64'
+                          Base64.decode64(params[:file_content])
+                        else
+                          params[:file_content]
+                        end
+
+      # Validate parameters
+      validate
+
+      # Create new branch if it different from current_branch
+      if @target_branch != @current_branch
+        create_target_branch
+      end
+
+      if sha = commit
+        after_commit(sha, @target_branch)
+        success
+      else
+        error("Something went wrong. Your changes were not committed")
+      end
+    rescue ValidationError => ex
+      error(ex.message)
     end
 
     private
 
-    def repository
-      project.repository
+    def after_commit(sha, branch)
+      PostCommitService.new(project, current_user).execute(sha, branch)
+    end
+
+    def current_branch
+      @current_branch ||= params[:current_branch]
+    end
+
+    def target_branch
+      @target_branch ||= params[:target_branch]
+    end
+
+    def raise_error(message)
+      raise ValidationError.new(message)
+    end
+
+    def validate
+      allowed = ::Gitlab::GitAccess.new(current_user, project).can_push_to_branch?(@target_branch)
+
+      unless allowed
+        raise_error("You are not allowed to push into this branch")
+      end
+
+      unless project.empty_repo?
+        unless repository.branch_names.include?(@current_branch)
+          raise_error("You can only create files if you are on top of a branch")
+        end
+
+        if @current_branch != @target_branch
+          if repository.branch_names.include?(@target_branch)
+            raise_error("Branch with such name already exists. You need to switch to this branch in order to make changes")
+          end
+        end
+      end
+    end
+
+    def create_target_branch
+      result = CreateBranchService.new(project, current_user).execute(@target_branch, @current_branch)
+
+      unless result[:status] == :success
+        raise_error("Something went wrong when we tried to create #{@target_branch} for you")
+      end
     end
   end
 end
diff --git a/app/services/files/create_service.rb b/app/services/files/create_service.rb
index 23833aa78ec81e14cea22f95933f5064f1aabd32..91d715b2d637376ec18e268ee9aa3d4a1c46a340 100644
--- a/app/services/files/create_service.rb
+++ b/app/services/files/create_service.rb
@@ -1,52 +1,30 @@
 require_relative "base_service"
 
 module Files
-  class CreateService < BaseService
-    def execute
-      allowed = Gitlab::GitAccess.new(current_user, project).can_push_to_branch?(ref)
+  class CreateService < Files::BaseService
+    def commit
+      repository.commit_file(current_user, @file_path, @file_content, @commit_message, @target_branch)
+    end
 
-      unless allowed
-        return error("You are not allowed to create file in this branch")
-      end
+    def validate
+      super
 
-      file_name = File.basename(path)
-      file_path = path
+      file_name = File.basename(@file_path)
 
       unless file_name =~ Gitlab::Regex.file_name_regex
-        return error(
+        raise_error(
           'Your changes could not be committed, because the file name ' +
           Gitlab::Regex.file_name_regex_message
         )
       end
 
-      if project.empty_repo?
-        # everything is ok because repo does not have a commits yet
-      else
-        unless repository.branch_names.include?(ref)
-          return error("You can only create files if you are on top of a branch")
-        end
-
-        blob = repository.blob_at_branch(ref, file_path)
+      unless project.empty_repo?
+        blob = repository.blob_at_branch(@current_branch, @file_path)
 
         if blob
-          return error("Your changes could not be committed, because file with such name exists")
+          raise_error("Your changes could not be committed, because file with such name exists")
         end
       end
-
-
-      new_file_action = Gitlab::Satellite::NewFileAction.new(current_user, project, ref, file_path)
-      created_successfully = new_file_action.commit!(
-        params[:content],
-        params[:commit_message],
-        params[:encoding],
-        params[:new_branch]
-      )
-
-      if created_successfully
-        success
-      else
-        error("Your changes could not be committed, because the file has been changed")
-      end
     end
   end
 end
diff --git a/app/services/files/delete_service.rb b/app/services/files/delete_service.rb
index 1497a0f883bcb32c5c85cdb3400a3960ea539de0..27c881c34308ad1bb360546bbfcee1bd49733d33 100644
--- a/app/services/files/delete_service.rb
+++ b/app/services/files/delete_service.rb
@@ -1,36 +1,9 @@
 require_relative "base_service"
 
 module Files
-  class DeleteService < BaseService
-    def execute
-      allowed = ::Gitlab::GitAccess.new(current_user, project).can_push_to_branch?(ref)
-
-      unless allowed
-        return error("You are not allowed to push into this branch")
-      end
-
-      unless repository.branch_names.include?(ref)
-        return error("You can only create files if you are on top of a branch")
-      end
-
-      blob = repository.blob_at_branch(ref, path)
-
-      unless blob
-        return error("You can only edit text files")
-      end
-
-      delete_file_action = Gitlab::Satellite::DeleteFileAction.new(current_user, project, ref, path)
-
-      deleted_successfully = delete_file_action.commit!(
-        nil,
-        params[:commit_message]
-      )
-
-      if deleted_successfully
-        success
-      else
-        error("Your changes could not be committed, because the file has been changed")
-      end
+  class DeleteService < Files::BaseService
+    def commit
+      repository.remove_file(current_user, @file_path, @commit_message, @target_branch)
     end
   end
 end
diff --git a/app/services/files/update_service.rb b/app/services/files/update_service.rb
index 0724d3ae6347b1150c0c40f81cb36fbdb7c9dea8..a20903c6f02c13e8f4e014a56ce307fe1d829c3d 100644
--- a/app/services/files/update_service.rb
+++ b/app/services/files/update_service.rb
@@ -1,39 +1,9 @@
 require_relative "base_service"
 
 module Files
-  class UpdateService < BaseService
-    def execute
-      allowed = ::Gitlab::GitAccess.new(current_user, project).can_push_to_branch?(ref)
-
-      unless allowed
-        return error("You are not allowed to push into this branch")
-      end
-
-      unless repository.branch_names.include?(ref)
-        return error("You can only create files if you are on top of a branch")
-      end
-
-      blob = repository.blob_at_branch(ref, path)
-
-      unless blob
-        return error("You can only edit text files")
-      end
-
-      edit_file_action = Gitlab::Satellite::EditFileAction.new(current_user, project, ref, path)
-      edit_file_action.commit!(
-        params[:content],
-        params[:commit_message],
-        params[:encoding],
-        params[:new_branch]
-      )
-
-      success
-    rescue Gitlab::Satellite::CheckoutFailed => ex
-      error("Your changes could not be committed because ref '#{ref}' could not be checked out", 400)
-    rescue Gitlab::Satellite::CommitFailed => ex
-      error("Your changes could not be committed. Maybe there was nothing to commit?", 409)
-    rescue Gitlab::Satellite::PushFailed => ex
-      error("Your changes could not be committed. Maybe the file was changed by another process?", 409)
+  class UpdateService < Files::BaseService
+    def commit
+      repository.commit_file(current_user, @file_path, @file_content, @commit_message, @target_branch)
     end
   end
 end
diff --git a/app/services/git_push_service.rb b/app/services/git_push_service.rb
index 5a2c97b08af95048a843f908189c1231ae6a7deb..81535450ac15f6cc0974f3d6452b7b74c3034197 100644
--- a/app/services/git_push_service.rb
+++ b/app/services/git_push_service.rb
@@ -10,16 +10,14 @@ class GitPushService
   #
   # Next, this method:
   #  1. Creates the push event
-  #  2. Ensures that the project satellite exists
-  #  3. Updates merge requests
-  #  4. Recognizes cross-references from commit messages
-  #  5. Executes the project's web hooks
-  #  6. Executes the project's services
+  #  2. Updates merge requests
+  #  3. Recognizes cross-references from commit messages
+  #  4. Executes the project's web hooks
+  #  5. Executes the project's services
   #
   def execute(project, user, oldrev, newrev, ref)
     @project, @user = project, user
 
-    project.ensure_satellite_exists
     project.repository.expire_cache
 
     if push_remove_branch?(ref, newrev)
@@ -133,7 +131,8 @@ class GitPushService
   end
 
   def is_default_branch?(ref)
-    Gitlab::Git.branch_ref?(ref) && Gitlab::Git.ref_name(ref) == project.default_branch
+    Gitlab::Git.branch_ref?(ref) &&
+      (Gitlab::Git.ref_name(ref) == project.default_branch || project.default_branch.nil?)
   end
 
   def commit_user(commit)
diff --git a/app/services/merge_requests/auto_merge_service.rb b/app/services/merge_requests/auto_merge_service.rb
deleted file mode 100644
index cdedf48b0c006f39c164d968ceb4130fa35efc66..0000000000000000000000000000000000000000
--- a/app/services/merge_requests/auto_merge_service.rb
+++ /dev/null
@@ -1,30 +0,0 @@
-module MergeRequests
-  # AutoMergeService class
-  #
-  # Do git merge in satellite and in case of success
-  # mark merge request as merged and execute all hooks and notifications
-  # Called when you do merge via GitLab UI
-  class AutoMergeService < BaseMergeService
-    def execute(merge_request, commit_message)
-      merge_request.lock_mr
-
-      if Gitlab::Satellite::MergeAction.new(current_user, merge_request).merge!(commit_message)
-        merge_request.merge
-
-        create_merge_event(merge_request, current_user)
-        create_note(merge_request)
-        notification_service.merge_mr(merge_request, current_user)
-        execute_hooks(merge_request, 'merge')
-
-        true
-      else
-        merge_request.unlock_mr
-        false
-      end
-    rescue
-      merge_request.unlock_mr if merge_request.locked?
-      merge_request.mark_as_unmergeable
-      false
-    end
-  end
-end
diff --git a/app/services/merge_requests/base_merge_service.rb b/app/services/merge_requests/base_merge_service.rb
deleted file mode 100644
index 9579573adf9fb9ff34c1b59f08668b46b11b04b2..0000000000000000000000000000000000000000
--- a/app/services/merge_requests/base_merge_service.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-module MergeRequests
-  class BaseMergeService < MergeRequests::BaseService
-
-    private
-
-    def create_merge_event(merge_request, current_user)
-      EventCreateService.new.merge_mr(merge_request, current_user)
-    end
-  end
-end
diff --git a/app/services/merge_requests/build_service.rb b/app/services/merge_requests/build_service.rb
index 956480938c398d27fb08b21d001000fe0467a855..a9b29f9654d716553330b62c48860e4da4d7d1bd 100644
--- a/app/services/merge_requests/build_service.rb
+++ b/app/services/merge_requests/build_service.rb
@@ -12,12 +12,16 @@ module MergeRequests
       merge_request.target_project ||= (project.forked_from_project || project)
       merge_request.target_branch ||= merge_request.target_project.default_branch
 
-      unless merge_request.target_branch && merge_request.source_branch
-        return build_failed(merge_request, nil)
+      if merge_request.target_branch.blank? || merge_request.source_branch.blank?
+        message =
+          if params[:source_branch] || params[:target_branch]
+            "You must select source and target branch"
+          end
+
+        return build_failed(merge_request, message)
       end
 
       compare_result = CompareService.new.execute(
-        current_user,
         merge_request.source_project,
         merge_request.source_branch,
         merge_request.target_project,
@@ -40,7 +44,6 @@ module MergeRequests
           merge_request.compare_diffs = diffs
 
         elsif diffs == false
-          # satellite timeout return false
           merge_request.can_be_created = false
           merge_request.compare_failed = true
         end
@@ -59,9 +62,6 @@ module MergeRequests
       end
 
       merge_request
-
-    rescue Gitlab::Satellite::BranchesWithoutParent
-      return build_failed(merge_request, "Selected branches have no common commit so they cannot be merged.")
     end
 
     def build_failed(merge_request, message)
diff --git a/app/services/merge_requests/merge_service.rb b/app/services/merge_requests/merge_service.rb
index 327ead4ff3fe1fdb869aa415a48ee54ab9a222a5..2107529a21a1a00beb86818399fd62f11d1056c4 100644
--- a/app/services/merge_requests/merge_service.rb
+++ b/app/services/merge_requests/merge_service.rb
@@ -1,22 +1,57 @@
 module MergeRequests
   # MergeService class
   #
-  # Mark existing merge request as merged
-  # and execute all hooks and notifications
-  # Called when you do merge via command line and push code
-  # to target branch
-  class MergeService < BaseMergeService
+  # Do git merge and in case of success
+  # mark merge request as merged and execute all hooks and notifications
+  # Executed when you do merge via GitLab UI
+  #
+  class MergeService < MergeRequests::BaseService
+    attr_reader :merge_request, :commit_message
+
     def execute(merge_request, commit_message)
-      merge_request.merge
+      @commit_message = commit_message
+      @merge_request = merge_request
 
-      create_merge_event(merge_request, current_user)
-      create_note(merge_request)
-      notification_service.merge_mr(merge_request, current_user)
-      execute_hooks(merge_request, 'merge')
+      unless @merge_request.mergeable?
+        return error('Merge request is not mergeable')
+      end
+
+      merge_request.in_locked_state do
+        if merge_changes
+          after_merge
+          success
+        else
+          error('Can not merge changes')
+        end
+      end
+    end
+
+    private
+
+    def merge_changes
+      if sha = commit
+        after_commit(sha, merge_request.target_branch)
+      end
+    end
+
+    def commit
+      committer = repository.user_to_comitter(current_user)
+
+      options = {
+        message: commit_message,
+        author: committer,
+        committer: committer
+      }
+
+      repository.merge(merge_request.source_sha, merge_request.target_branch, options)
+    end
+
+    def after_commit(sha, branch)
+      PostCommitService.new(project, current_user).execute(sha, branch)
+    end
 
-      true
-    rescue
-      false
+    def after_merge
+      MergeRequests::PostMergeService.new(project, current_user).execute(merge_request)
     end
   end
 end
diff --git a/app/services/merge_requests/post_merge_service.rb b/app/services/merge_requests/post_merge_service.rb
new file mode 100644
index 0000000000000000000000000000000000000000..aceb8cb902199cca00d3113fb2210800b2aa17e5
--- /dev/null
+++ b/app/services/merge_requests/post_merge_service.rb
@@ -0,0 +1,22 @@
+module MergeRequests
+  # PostMergeService class
+  #
+  # Mark existing merge request as merged
+  # and execute all hooks and notifications
+  #
+  class PostMergeService < MergeRequests::BaseService
+    def execute(merge_request)
+      merge_request.mark_as_merged
+      create_merge_event(merge_request, current_user)
+      create_note(merge_request)
+      notification_service.merge_mr(merge_request, current_user)
+      execute_hooks(merge_request, 'merge')
+    end
+
+    private
+
+    def create_merge_event(merge_request, current_user)
+      EventCreateService.new.merge_mr(merge_request, current_user)
+    end
+  end
+end
diff --git a/app/services/merge_requests/refresh_service.rb b/app/services/merge_requests/refresh_service.rb
index d0648da049b42a2e4882874e872950515a0bee63..e903e48e3cd26daeb577dc4e5ecb3986dd315515 100644
--- a/app/services/merge_requests/refresh_service.rb
+++ b/app/services/merge_requests/refresh_service.rb
@@ -33,9 +33,9 @@ module MergeRequests
 
 
       merge_requests.uniq.select(&:source_project).each do |merge_request|
-        MergeRequests::MergeService.
+        MergeRequests::PostMergeService.
           new(merge_request.target_project, @current_user).
-          execute(merge_request, nil)
+          execute(merge_request)
       end
     end
 
diff --git a/app/services/post_commit_service.rb b/app/services/post_commit_service.rb
new file mode 100644
index 0000000000000000000000000000000000000000..8592c8d238ba6930eeba1fc1125fbd4a220f3bbb
--- /dev/null
+++ b/app/services/post_commit_service.rb
@@ -0,0 +1,71 @@
+class PostCommitService < BaseService
+  include Gitlab::Popen
+
+  attr_reader :changes, :repo_path
+
+  def execute(sha, branch)
+    commit = repository.commit(sha)
+    full_ref = Gitlab::Git::BRANCH_REF_PREFIX + branch
+    old_sha = commit.parent_id || Gitlab::Git::BLANK_SHA
+    @changes = "#{old_sha} #{sha} #{full_ref}"
+    @repo_path = repository.path_to_repo
+
+    post_receive
+  end
+
+  private
+
+  def post_receive
+    hook = hook_file('post-receive', repo_path)
+    return true if hook.nil?
+    call_receive_hook(hook)
+  end
+
+  def call_receive_hook(hook)
+    # function  will return true if succesful
+    exit_status = false
+
+    vars = {
+      'GL_ID' => Gitlab::ShellEnv.gl_id(current_user),
+      'PWD' => repo_path
+    }
+
+    options = {
+      chdir: repo_path
+    }
+
+    # we combine both stdout and stderr as we don't know what stream
+    # will be used by the custom hook
+    Open3.popen2e(vars, hook, options) do |stdin, stdout_stderr, wait_thr|
+      exit_status = true
+      stdin.sync = true
+
+      # in git, pre- and post- receive hooks may just exit without
+      # reading stdin. We catch the exception to avoid a broken pipe
+      # warning
+      begin
+        # inject all the changes as stdin to the hook
+        changes.lines do |line|
+          stdin.puts line
+        end
+      rescue Errno::EPIPE
+      end
+
+      # need to close stdin before reading stdout
+      stdin.close
+
+      # only output stdut_stderr if scripts doesn't return 0
+      unless wait_thr.value == 0
+        exit_status = false
+      end
+    end
+
+    exit_status
+  end
+
+  def hook_file(hook_type, repo_path)
+    hook_path = File.join(repo_path.strip, 'hooks')
+    hook_file = "#{hook_path}/#{hook_type}"
+    hook_file if File.exist?(hook_file)
+  end
+end
diff --git a/app/services/projects/destroy_service.rb b/app/services/projects/destroy_service.rb
index 403f419ec508b0043c1086779064d5737649077f..28872c89259d4f939d31d071cdab00f5f161e71b 100644
--- a/app/services/projects/destroy_service.rb
+++ b/app/services/projects/destroy_service.rb
@@ -27,7 +27,6 @@ module Projects
         end
       end
 
-      project.satellite.destroy
       log_info("Project \"#{project.name}\" was removed")
       system_hook_service.execute_hooks_for(project, :destroy)
       true
diff --git a/app/services/projects/transfer_service.rb b/app/services/projects/transfer_service.rb
index f43c0ef70e9183e06275b35fab6f5cfc5082dfbc..550ed6897dd4c7afb857a747aae1b28b2f12def5 100644
--- a/app/services/projects/transfer_service.rb
+++ b/app/services/projects/transfer_service.rb
@@ -33,9 +33,6 @@ module Projects
           raise TransferError.new("Project with same path in target namespace already exists")
         end
 
-        # Remove old satellite
-        project.satellite.destroy
-
         # Apply new namespace id
         project.namespace = new_namespace
         project.save!
@@ -51,9 +48,6 @@ module Projects
         # Move wiki repo also if present
         gitlab_shell.mv_repository("#{old_path}.wiki", "#{new_path}.wiki")
 
-        # Create a new satellite (reload project from DB)
-        Project.find(project.id).ensure_satellite_exists
-
         # clear project cached events
         project.reset_events_cache
 
diff --git a/app/views/projects/blob/_editor.html.haml b/app/views/projects/blob/_editor.html.haml
index 96f188e4aa7ab644487318d53faf2a021a4053b7..9c3e1703c893148dc66df5cf6e31ccaa684104c8 100644
--- a/app/views/projects/blob/_editor.html.haml
+++ b/app/views/projects/blob/_editor.html.haml
@@ -12,8 +12,8 @@
         \/
         = text_field_tag 'file_name', params[:file_name], placeholder: "File name",
           required: true, class: 'form-control new-file-name'
-        .pull-right
-          = select_tag :encoding, options_for_select([ "base64", "text" ], "text"), class: 'form-control'
+      .pull-right
+        = select_tag :encoding, options_for_select([ "base64", "text" ], "text"), class: 'form-control'
 
   .file-content.code
     %pre.js-edit-mode-pane#editor
diff --git a/app/views/projects/blob/new.html.haml b/app/views/projects/blob/new.html.haml
index dac984f8c3155e8ef1058a3a9f4c12d579bdcaed..7c2a4fece944aee7140a5304af4703fce8730ab6 100644
--- a/app/views/projects/blob/new.html.haml
+++ b/app/views/projects/blob/new.html.haml
@@ -6,11 +6,12 @@
     = render 'shared/commit_message_container', params: params,
              placeholder: 'Add new file'
 
-    .form-group.branch
-      = label_tag 'branch', class: 'control-label' do
-        Branch
-      .col-sm-10
-        = text_field_tag 'new_branch', @ref, class: "form-control"
+    - unless @project.empty_repo?
+      .form-group.branch
+        = label_tag 'branch', class: 'control-label' do
+          Branch
+        .col-sm-10
+          = text_field_tag 'new_branch', @ref, class: "form-control"
 
     = hidden_field_tag 'content', '', id: 'file-content'
     = render 'projects/commit_button', ref: @ref,
diff --git a/app/views/projects/merge_requests/_new_compare.html.haml b/app/views/projects/merge_requests/_new_compare.html.haml
index ff9c0cdb283c6953922e01c99a4fbe36c4cc674d..7709330611a835944fdf89c5e2213edfacfaa96e 100644
--- a/app/views/projects/merge_requests/_new_compare.html.haml
+++ b/app/views/projects/merge_requests/_new_compare.html.haml
@@ -35,7 +35,7 @@
     - if @merge_request.compare_failed
       .alert.alert-danger
         %h4 Compare failed
-        %p We can't compare selected branches. It may be because of huge diff or satellite timeout. Please try again or select different branches.
+        %p We can't compare selected branches. It may be because of huge diff. Please try again or select different branches.
     - else
       .light-well
         .center
diff --git a/app/views/projects/merge_requests/_new_submit.html.haml b/app/views/projects/merge_requests/_new_submit.html.haml
index 633a54f3620cc132e8e932a40bc8b8d8cc7c3802..76f44211dac3f7fb821600003afb37f0ec892120 100644
--- a/app/views/projects/merge_requests/_new_submit.html.haml
+++ b/app/views/projects/merge_requests/_new_submit.html.haml
@@ -24,7 +24,7 @@
         = icon('history')
         Commits
         %span.badge= @commits.size
-    %li.diffs-tab
+    %li.diffs-tab.active
       = link_to url_for(params), data: {target: '#diffs', action: 'diffs', toggle: 'tab'} do
         = icon('list-alt')
         Changes
@@ -33,7 +33,7 @@
   .tab-content
     #commits.commits.tab-pane
       = render "projects/commits/commits", project: @project
-    #diffs.diffs.tab-pane
+    #diffs.diffs.tab-pane.active
       - if @diffs.present?
         = render "projects/diffs/diffs", diffs: @diffs, project: @project
       - elsif @commits.size > MergeRequestDiff::COMMITS_SAFE_SIZE
diff --git a/app/views/projects/merge_requests/_show.html.haml b/app/views/projects/merge_requests/_show.html.haml
index c57eee14143f5929c2ea6ba3254b836535739628..2662e3aff6b21f4fe9287e7ef8c3c0d8125c17bf 100644
--- a/app/views/projects/merge_requests/_show.html.haml
+++ b/app/views/projects/merge_requests/_show.html.haml
@@ -6,40 +6,25 @@
     = render "projects/merge_requests/show/mr_box"
     %hr
     .append-bottom-20
-      .slead
-        %span From
-        - if @merge_request.for_fork?
-          %strong.label-branch<
-            - if @merge_request.source_project
-              = link_to @merge_request.source_project_namespace, namespace_project_path(@merge_request.source_project.namespace, @merge_request.source_project)
-            - else
-              \ #{@merge_request.source_project_namespace}
-            \:#{@merge_request.source_branch}
+      - if @merge_request.open?
+        .btn-group.btn-group-sm.pull-right
+          %a.btn.btn-sm.dropdown-toggle{ data: {toggle: :dropdown} }
+            = icon('download')
+            Download as
+            %span.caret
+          %ul.dropdown-menu
+            %li= link_to "Email Patches", merge_request_path(@merge_request, format: :patch)
+            %li= link_to "Plain Diff",    merge_request_path(@merge_request, format: :diff)
+      .light
+        %div
+          %span From
+          %span.label-branch #{source_branch_with_namespace(@merge_request)}
           %span into
-          %strong.label-branch #{@merge_request.target_project_namespace}:#{@merge_request.target_branch}
-        - else
-          %strong.label-branch #{@merge_request.source_branch}
-          %span into
-          %strong.label-branch #{@merge_request.target_branch}
-        - if @merge_request.open?
-          .btn-group.btn-group-sm.pull-right
-            %a.btn.btn-sm.dropdown-toggle{ data: {toggle: :dropdown} }
-              = icon('download')
-              Download as
-              %span.caret
-            %ul.dropdown-menu
-              %li= link_to "Email Patches", merge_request_path(@merge_request, format: :patch)
-              %li= link_to "Plain Diff",    merge_request_path(@merge_request, format: :diff)
-
-    - if @merge_request.open? and @merge_request.source_branch_exists?
-      .append-bottom-20
-        .slead
-          %span
-            Fetch the branch with
-            %strong.label-branch<
-              git fetch
-              \ #{@merge_request.source_project.http_url_to_repo}
-              \ #{@merge_request.source_branch}
+          %span.label-branch #{@merge_request.target_branch}
+        - if @merge_request.open? && !@merge_request.branch_missing?
+          %div
+            If you want to try or merge this request manually, you can use the
+            = link_to "command line", "#modal_merge_info", class: "how_to_merge_link vlink", title: "How To Merge", "data-toggle" => "modal"
 
     = render "projects/merge_requests/show/how_to_merge"
     = render "projects/merge_requests/widget/show.html.haml"
diff --git a/app/views/projects/merge_requests/automerge.js.haml b/app/views/projects/merge_requests/merge.js.haml
similarity index 100%
rename from app/views/projects/merge_requests/automerge.js.haml
rename to app/views/projects/merge_requests/merge.js.haml
diff --git a/app/views/projects/merge_requests/show/_commits.html.haml b/app/views/projects/merge_requests/show/_commits.html.haml
index 3b7f283daf0468774e60114d0c3490d26c71cefc..a71b181a6a5c44af70df4293c44183f104a5ded8 100644
--- a/app/views/projects/merge_requests/show/_commits.html.haml
+++ b/app/views/projects/merge_requests/show/_commits.html.haml
@@ -1 +1 @@
-= render "projects/commits/commits", project: @merge_request.source_project
+= render "projects/commits/commits", project: @merge_request.project
diff --git a/app/views/projects/merge_requests/show/_diffs.html.haml b/app/views/projects/merge_requests/show/_diffs.html.haml
index 786b5f39063327cf28f8dca26d3f89965b46f7cd..626970f39be61a083b87ef44a7522bef57255e72 100644
--- a/app/views/projects/merge_requests/show/_diffs.html.haml
+++ b/app/views/projects/merge_requests/show/_diffs.html.haml
@@ -1,5 +1,5 @@
 - if @merge_request_diff.collected?
-  = render "projects/diffs/diffs", diffs: @merge_request.diffs, project: @merge_request.source_project
+  = render "projects/diffs/diffs", diffs: @merge_request.diffs, project: @merge_request.project
 - elsif @merge_request_diff.empty?
   .nothing-here-block Nothing to merge from #{@merge_request.source_branch} into #{@merge_request.target_branch}
 - else
diff --git a/app/views/projects/merge_requests/show/_how_to_merge.html.haml b/app/views/projects/merge_requests/show/_how_to_merge.html.haml
index 22f601ac99e4f83731f0038e9b2635b6777be050..db1575f899a96d7060e7d6f8770881025cd37a46 100644
--- a/app/views/projects/merge_requests/show/_how_to_merge.html.haml
+++ b/app/views/projects/merge_requests/show/_how_to_merge.html.haml
@@ -3,42 +3,45 @@
     .modal-content
       .modal-header
         %a.close{href: "#", "data-dismiss" => "modal"} ×
-        %h3 How to merge
+        %h3 Check out, review and merge locally
       .modal-body
-        - if @merge_request.for_fork?
-          - source_remote = @merge_request.source_project.namespace.nil? ? "source" :@merge_request.source_project.namespace.path
-          - target_remote = @merge_request.target_project.namespace.nil? ? "target" :@merge_request.target_project.namespace.path
-          %p
-            %strong Step 1.
-            Fetch the code and create a new branch pointing to it
-          %pre.dark
+        %p
+          %strong Step 1. 
+          Fetch and check out the branch for this merge request
+        %pre.dark
+          - if @merge_request.for_fork?
             :preserve
               git fetch #{@merge_request.source_project.http_url_to_repo} #{@merge_request.source_branch}
               git checkout -b #{@merge_request.source_project_path}-#{@merge_request.source_branch} FETCH_HEAD
-          %p
-            %strong Step 2.
-            Merge the branch and push the changes to GitLab
-          %pre.dark
-            :preserve
-              git checkout #{@merge_request.target_branch}
-              git merge --no-ff #{@merge_request.source_project_path}-#{@merge_request.source_branch}
-              git push origin #{@merge_request.target_branch}
-        - else
-          %p
-            %strong Step 1.
-            Update the repo and checkout the branch we are going to merge
-          %pre.dark
+          - else
             :preserve
               git fetch origin
               git checkout -b #{@merge_request.source_branch} origin/#{@merge_request.source_branch}
-          %p
-            %strong Step 2.
-            Merge the branch and push the changes to GitLab
-          %pre.dark
+        %p
+          %strong Step 2.
+          Review the changes locally
+
+        %p
+          %strong Step 3.
+          Merge the branch and fix any conflicts that come up
+        %pre.dark
+          - if @merge_request.for_fork?
+            :preserve
+              git checkout #{@merge_request.target_branch}
+              git merge --no-ff #{@merge_request.source_project_path}-#{@merge_request.source_branch}
+          - else
             :preserve
               git checkout #{@merge_request.target_branch}
               git merge --no-ff #{@merge_request.source_branch}
-              git push origin #{@merge_request.target_branch}
+        %p
+          %strong Step 4.
+          Push the result of the merge to GitLab
+        %pre.dark
+          :preserve
+            git push origin #{@merge_request.target_branch}
+        - unless @merge_request.can_be_merged_by?(current_user)
+          %p
+            Note that pushing to GitLab requires write access to this repository.
 
 :javascript
   $(function(){
diff --git a/app/views/projects/merge_requests/widget/_closed.html.haml b/app/views/projects/merge_requests/widget/_closed.html.haml
index b5704c502c864a103e81e1bdd9f04ff69e6fe20d..f3cc0e7e8a19fe04e1985c1b2d44c208dfaec37e 100644
--- a/app/views/projects/merge_requests/widget/_closed.html.haml
+++ b/app/views/projects/merge_requests/widget/_closed.html.haml
@@ -6,4 +6,7 @@
       - if @merge_request.closed_event
         by #{link_to_member(@project, @merge_request.closed_event.author, avatar: true)}
         #{time_ago_with_tooltip(@merge_request.closed_event.created_at)}
-    %p Changes were not merged into target branch
+    %p 
+      = succeed '.' do
+        The changes were not merged into
+        %span.label-branch= @merge_request.target_branch
diff --git a/app/views/projects/merge_requests/widget/_heading.html.haml b/app/views/projects/merge_requests/widget/_heading.html.haml
index f04eac0e3bb957a9babb320630b794b1c01b94de..4d4e2f68f613b614aa13525810ec3d99128827de 100644
--- a/app/views/projects/merge_requests/widget/_heading.html.haml
+++ b/app/views/projects/merge_requests/widget/_heading.html.haml
@@ -1,49 +1,28 @@
 - if @merge_request.has_ci?
   .mr-widget-heading
-    .ci_widget.ci-success{style: "display:none"}
-      = icon("check")
-      %span CI build passed
-      for #{@merge_request.last_commit_short_sha}.
-      = link_to "View build page", ci_build_details_path(@merge_request), :"data-no-turbolink" => "data-no-turbolink"
-
-    .ci_widget.ci-skipped{style: "display:none"}
-      = icon("check")
-      %span CI build skipped
-      for #{@merge_request.last_commit_short_sha}.
-      = link_to "View build page", ci_build_details_path(@merge_request), :"data-no-turbolink" => "data-no-turbolink"
-
-    .ci_widget.ci-failed{style: "display:none"}
-      = icon("times")
-      %span CI build failed
-      for #{@merge_request.last_commit_short_sha}.
-      = link_to "View build page", ci_build_details_path(@merge_request), :"data-no-turbolink" => "data-no-turbolink"
-
-    - [:running, :pending].each do |status|
+    - [:success, :skipped, :canceled, :failed, :running, :pending].each do |status|
       .ci_widget{class: "ci-#{status}", style: "display:none"}
-        = icon("clock-o")
+        - if status == :success
+          - status = "passed"
+          = icon("check-circle")
+        - else
+          = icon("circle")
         %span CI build #{status}
         for #{@merge_request.last_commit_short_sha}.
-        = link_to "View build page", ci_build_details_path(@merge_request), :"data-no-turbolink" => "data-no-turbolink"
+        %span.ci-coverage
+        = link_to "View build details", ci_build_details_path(@merge_request), :"data-no-turbolink" => "data-no-turbolink"
 
     .ci_widget
       = icon("spinner spin")
-      Checking for CI status for #{@merge_request.last_commit_short_sha}
+      Checking CI status for #{@merge_request.last_commit_short_sha}&hellip;
 
     .ci_widget.ci-not_found{style: "display:none"}
-      = icon("times")
-      %span Can not find commit in the CI server
-      for #{@merge_request.last_commit_short_sha}.
-      
-
-    .ci_widget.ci-canceled{style: "display:none"}
-      = icon("times")
-      %span CI build canceled
-      for #{@merge_request.last_commit_short_sha}.
-      = link_to "View build page", ci_build_details_path(@merge_request), :"data-no-turbolink" => "data-no-turbolink"
+      = icon("times-circle")
+      Could not find CI status for #{@merge_request.last_commit_short_sha}.
 
     .ci_widget.ci-error{style: "display:none"}
-      = icon("times")
-      %span Cannot connect to the CI server. Please check your settings and try again.
+      = icon("times-circle")
+      Could not connect to the CI server. Please check your settings and try again.
 
   :coffeescript
     $ ->
diff --git a/app/views/projects/merge_requests/widget/_locked.html.haml b/app/views/projects/merge_requests/widget/_locked.html.haml
index 13ec278847bcf64d51fe7b9476330b5bd0546704..78d0783cba05208647a0962e2e14784deae42d4c 100644
--- a/app/views/projects/merge_requests/widget/_locked.html.haml
+++ b/app/views/projects/merge_requests/widget/_locked.html.haml
@@ -2,7 +2,8 @@
   = render 'projects/merge_requests/widget/heading'
   .mr-widget-body
     %h4
-      Merge in progress...
+      = icon("spinner spin")
+      Merge in progress&hellip;
     %p
-      Merging is in progress. While merging this request is locked and cannot be closed.
+      This merge request is in the process of being merged, during which time it is locked and cannot be closed.
 
diff --git a/app/views/projects/merge_requests/widget/_merged.html.haml b/app/views/projects/merge_requests/widget/_merged.html.haml
index a3b13140810a102745340f8f5912af5249902d23..d22dfa085b8015210901c492f1c165d6cffc3919 100644
--- a/app/views/projects/merge_requests/widget/_merged.html.haml
+++ b/app/views/projects/merge_requests/widget/_merged.html.haml
@@ -7,23 +7,31 @@
         by #{link_to_member(@project, @merge_request.merge_event.author, avatar: true)}
         #{time_ago_with_tooltip(@merge_request.merge_event.created_at)}
     %div
-      - if @source_branch.blank?
-        Source branch has been removed
+      - if !@merge_request.source_branch_exists?
+        = succeed '.' do
+          The changes were merged into
+          %span.label-branch= @merge_request.target_branch
+        The source branch has been removed.
 
-      - elsif can_remove_branch?(@merge_request.source_project, @merge_request.source_branch) && @merge_request.merged?
+      - elsif can_remove_branch?(@merge_request.source_project, @merge_request.source_branch)
         .remove_source_branch_widget
-          %p Changes merged into #{@merge_request.target_branch}. You can remove source branch now
+          %p 
+            = succeed '.' do
+              The changes were merged into
+              %span.label-branch= @merge_request.target_branch
+            You can remove the source branch now.
           = link_to namespace_project_branch_path(@merge_request.source_project.namespace, @merge_request.source_project, @source_branch), remote: true, method: :delete, class: "btn btn-primary btn-sm remove_source_branch" do
             %i.fa.fa-times
             Remove Source Branch
 
         .remove_source_branch_widget.failed.hide
-          Failed to remove source branch '#{@merge_request.source_branch}'
+          %p 
+            Failed to remove source branch '#{@merge_request.source_branch}'.
 
         .remove_source_branch_in_progress.hide
-          %i.fa.fa-spinner.fa-spin
-          &nbsp;
-          Removing source branch '#{@merge_request.source_branch}'. Please wait. Page will be automatically reloaded. &nbsp;
+          %p
+            = icon('spinner spin')
+            Removing source branch '#{@merge_request.source_branch}'. Please wait. This page will be automatically reload.
 
         :coffeescript
           $('.remove_source_branch').on 'click', ->
diff --git a/app/views/projects/merge_requests/widget/_open.html.haml b/app/views/projects/merge_requests/widget/_open.html.haml
index bb794912f8f16b9a8cb8bc3dfe67c36177b91706..0aad9bb3e88e0507eb56af53618271f2e525c499 100644
--- a/app/views/projects/merge_requests/widget/_open.html.haml
+++ b/app/views/projects/merge_requests/widget/_open.html.haml
@@ -3,8 +3,6 @@
   .mr-widget-body
     - if @project.archived?
       = render 'projects/merge_requests/widget/open/archived'
-    - elsif !@project.satellite.exists?
-      = render 'projects/merge_requests/widget/open/no_satellite'
     - elsif @merge_request.commits.blank?
       = render 'projects/merge_requests/widget/open/nothing'
     - elsif @merge_request.branch_missing?
@@ -24,6 +22,6 @@
     .mr-widget-footer
       %span
         %i.fa.fa-check
-        Accepting this merge request will close #{@closes_issues.size == 1 ? 'issue' : 'issues'}
+        Accepting this merge request will close #{"issue".pluralize(@closes_issues.size)}
         = succeed '.' do
           != gfm(issues_sentence(@closes_issues))
diff --git a/app/views/projects/merge_requests/widget/_show.html.haml b/app/views/projects/merge_requests/widget/_show.html.haml
index 263cab7a9e8866b45fde34d824d80bbbef0109a9..a489d4f9b24ee4e675a9ce4e3299408e0816c20f 100644
--- a/app/views/projects/merge_requests/widget/_show.html.haml
+++ b/app/views/projects/merge_requests/widget/_show.html.haml
@@ -11,10 +11,10 @@
   var merge_request_widget;
 
   merge_request_widget = new MergeRequestWidget({
-    url_to_automerge_check: "#{automerge_check_namespace_project_merge_request_path(@project.namespace, @project, @merge_request)}",
+    url_to_automerge_check: "#{merge_check_namespace_project_merge_request_path(@project.namespace, @project, @merge_request)}",
     check_enable: #{@merge_request.unchecked? ? "true" : "false"},
     url_to_ci_check: "#{ci_status_namespace_project_merge_request_path(@project.namespace, @project, @merge_request)}",
     ci_enable: #{@project.ci_service ? "true" : "false"},
-    current_status: "#{@merge_request.automerge_status}",
+    current_status: "#{@merge_request.gitlab_merge_status}",
   });
 
diff --git a/app/views/projects/merge_requests/widget/open/_accept.html.haml b/app/views/projects/merge_requests/widget/open/_accept.html.haml
index f5bacaf280a6c9af3d171e073e0a0c819e58a8a7..e1525f6aeb75e37a803d08b4c886bcbe4043ad54 100644
--- a/app/views/projects/merge_requests/widget/open/_accept.html.haml
+++ b/app/views/projects/merge_requests/widget/open/_accept.html.haml
@@ -1,4 +1,4 @@
-= form_for [:automerge, @project.namespace.becomes(Namespace), @project, @merge_request], remote: true, method: :post, html: { class: 'accept-mr-form js-requires-input' } do |f|
+= form_for [:merge, @project.namespace.becomes(Namespace), @project, @merge_request], remote: true, method: :post, html: { class: 'accept-mr-form js-requires-input' } do |f|
   = hidden_field_tag :authenticity_token, form_authenticity_token
   .accept-merge-holder.clearfix.js-toggle-container
     .accept-action
@@ -8,22 +8,16 @@
       .accept-control.checkbox
         = label_tag :should_remove_source_branch, class: "remove_source_checkbox" do
           = check_box_tag :should_remove_source_branch
-          Remove source-branch
+          Remove source branch
     .accept-control
-      = link_to "#", class: "modify-merge-commit-link js-toggle-button", title: "Modify merge commit message" do
-        %i.fa.fa-edit
+      = link_to "#", class: "modify-merge-commit-link js-toggle-button" do
+        = icon('edit')
         Modify commit message
     .js-toggle-content.hide.prepend-top-20
       = render 'shared/commit_message_container', params: params,
           text: @merge_request.merge_commit_message,
           rows: 14, hint: true
 
-  %br
-  .light
-    If you want to merge this request manually, you can use the
-    %strong
-      = link_to "command line", "#modal_merge_info", class: "how_to_merge_link vlink", title: "How To Merge", "data-toggle" => "modal"
-
   :coffeescript
     $('.accept-mr-form').on 'ajax:before', ->
       btn = $('.accept_merge_request')
diff --git a/app/views/projects/merge_requests/widget/open/_archived.html.haml b/app/views/projects/merge_requests/widget/open/_archived.html.haml
index eaf113ee568d116bf48a7288f313840b00e7182f..ab30fa6b24365bef35d6775d0963ddf6e250e3ce 100644
--- a/app/views/projects/merge_requests/widget/open/_archived.html.haml
+++ b/app/views/projects/merge_requests/widget/open/_archived.html.haml
@@ -1,2 +1,4 @@
+%h4 
+  Project is archived
 %p
-  %strong Archived projects do not provide commit access.
+  This merge request cannot be merged because archived projects cannot be written to.
diff --git a/app/views/projects/merge_requests/widget/open/_check.html.haml b/app/views/projects/merge_requests/widget/open/_check.html.haml
index e775447cb75d7f4f78b6771e156310b47b924636..b6b8974297e62534fa7d2a443cced88b0b78bb39 100644
--- a/app/views/projects/merge_requests/widget/open/_check.html.haml
+++ b/app/views/projects/merge_requests/widget/open/_check.html.haml
@@ -1,6 +1,6 @@
 %strong
-  %i.fa.fa-spinner.fa-spin
-  Checking automatic merge…
+  = icon("spinner spin")
+  Checking ability to merge automatically&hellip;
 
 :coffeescript
   $ ->
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 7dc3b4eb2cc7a73b33ca126366eddf479ffd9737..e6c089fefb2d39c509b42b1c807f6aca2554c030 100644
--- a/app/views/projects/merge_requests/widget/open/_conflicts.html.haml
+++ b/app/views/projects/merge_requests/widget/open/_conflicts.html.haml
@@ -1,10 +1,10 @@
-- if @merge_request.can_be_merged_by?(current_user)
-  %h4
-    This merge request contains merge conflicts that must be resolved.
-  %p
-    You can merge it manually using the
-    %strong
-      = link_to "command line", "#modal_merge_info", class: "how_to_merge_link vlink", title: "How To Merge", "data-toggle" => "modal"
-- else
-  %strong This merge request contains merge conflicts that must be resolved.
-  Only those with write access to this repository can merge merge requests.
+%h4
+  = icon("exclamation-triangle")
+  This merge request contains merge conflicts
+
+%p
+  Please resolve these conflicts or 
+  - 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/merge_requests/widget/open/_missing_branch.html.haml b/app/views/projects/merge_requests/widget/open/_missing_branch.html.haml
index 1c565bae80a08447f263950110f3bb10819cb992..c9f076294939084fc0e0142017b06b4a0aa3fb08 100644
--- a/app/views/projects/merge_requests/widget/open/_missing_branch.html.haml
+++ b/app/views/projects/merge_requests/widget/open/_missing_branch.html.haml
@@ -1,16 +1,16 @@
-%h4
-  Can't be merged
-%p
-  This merge request can not be accepted because branch
-  - unless @merge_request.source_branch_exists?
-    %span.label.label-inverse= @merge_request.source_branch
-    does not exist in
-    %span.label.label-info= @merge_request.source_project_path
-    %br
-    %strong Please close this merge request and open a new merge request to change source branches.
-  - else
-    %span.label.label-inverse= @merge_request.target_branch
-    does not exist in
-    %span.label.label-info= @merge_request.target_project_path
-    %br
-    %strong Please close this merge request or change to another target branch.
+- unless @merge_request.source_branch_exists?
+  %h4
+    = icon("exclamation-triangle")
+    Source branch
+    %span.label-branch= source_branch_with_namespace(@merge_request)
+    does not exist
+  %p
+    Please restore the source branch or close this merge request and open a new merge request with a different source branch.
+- else
+  %h4
+    = icon("exclamation-triangle")
+    Target branch
+    %span.label-branch= @merge_request.target_branch
+    does not exist
+  %p
+    Please restore the target branch or use a different target branch.
diff --git a/app/views/projects/merge_requests/widget/open/_no_satellite.html.haml b/app/views/projects/merge_requests/widget/open/_no_satellite.html.haml
deleted file mode 100644
index 3718cfd83339b4be6e5d6200f58696e46bce4acd..0000000000000000000000000000000000000000
--- a/app/views/projects/merge_requests/widget/open/_no_satellite.html.haml
+++ /dev/null
@@ -1,3 +0,0 @@
-%p
-  %span
-    %strong This repository does not have a satellite. Please ask an administrator to fix this issue!
diff --git a/app/views/projects/merge_requests/widget/open/_not_allowed.html.haml b/app/views/projects/merge_requests/widget/open/_not_allowed.html.haml
index 82f6ffd8fcbe69331b49f4cb0d90366e2608a9b0..a8145558ca85117722c73ed2823ed97b657de95d 100644
--- a/app/views/projects/merge_requests/widget/open/_not_allowed.html.haml
+++ b/app/views/projects/merge_requests/widget/open/_not_allowed.html.haml
@@ -1,2 +1,4 @@
-%strong This request can be merged automatically.
-Only those with write access to this repository can merge merge requests.
+%h4 
+  Ready to be merged automatically
+%p
+  Ask someone with write access to this repository to merge this request.
diff --git a/app/views/projects/merge_requests/widget/open/_nothing.html.haml b/app/views/projects/merge_requests/widget/open/_nothing.html.haml
index 4d526576bc2d7c6a41184ff39a15a0afa8388fc8..35626b624b7a2cb9de503aa314899455e3be3983 100644
--- a/app/views/projects/merge_requests/widget/open/_nothing.html.haml
+++ b/app/views/projects/merge_requests/widget/open/_nothing.html.haml
@@ -1,8 +1,8 @@
-%h4 Nothing to merge
-%p
+%h4 
+  = icon("exclamation-triangle")
   Nothing to merge from
-  %span.label-branch #{@merge_request.source_branch}
-  to
-  %span.label-branch #{@merge_request.target_branch}
-  %br
-  Try to use different branches or push new code.
+  %span.label-branch= source_branch_with_namespace(@merge_request)
+  into
+  %span.label-branch= @merge_request.target_branch
+%p
+  Please push new commits to the source branch or use a different target branch.
diff --git a/app/views/projects/merge_requests/widget/open/_reload.html.haml b/app/views/projects/merge_requests/widget/open/_reload.html.haml
index 5787f6efea457e6ca16c31d7504c8eceb8a97d8c..acfc31725eb95976ba5640fe704710fd29a13e32 100644
--- a/app/views/projects/merge_requests/widget/open/_reload.html.haml
+++ b/app/views/projects/merge_requests/widget/open/_reload.html.haml
@@ -1 +1,6 @@
-This merge request cannot be merged. Try to reload the page.
+%h4
+  = icon("exclamation-triangle")
+  This merge request failed to be merged automatically
+
+%p
+  Please reload the page to find out the reason.
diff --git a/app/views/projects/merge_requests/widget/open/_wip.html.haml b/app/views/projects/merge_requests/widget/open/_wip.html.haml
index 4ce3ab31278924291d47e6d482f4e7898e8b458c..0cf16542cc1823cc7e09f6799bc5fce5e2fac926 100644
--- a/app/views/projects/merge_requests/widget/open/_wip.html.haml
+++ b/app/views/projects/merge_requests/widget/open/_wip.html.haml
@@ -1,13 +1,5 @@
-- if @merge_request.can_be_merged_by?(current_user)
-  %h4
-    This merge request cannot be accepted because it is marked as Work In Progress.
+%h4
+  This merge request is currently a Work In Progress
 
-  %p
-    %button.btn.disabled{:type => 'button'}
-      %i.fa.fa-warning
-      Accept Merge Request
-    &nbsp;
-    When the merge request is ready, remove the "WIP" prefix from the title to allow it to be accepted.
-- else
-  %strong This merge request is marked as Work In Progress.
-  Only those with write access to this repository can merge merge requests.
+%p
+  When this merge request is ready, remove the "WIP" prefix from the title to allow it to be merged.
diff --git a/app/views/shared/issuable/_form.html.haml b/app/views/shared/issuable/_form.html.haml
index ac8c1936c9edfad69fc9871997dbcb9c46a7d9e9..3489bf3f1913edd4a1098800a186976ec9e95688 100644
--- a/app/views/shared/issuable/_form.html.haml
+++ b/app/views/shared/issuable/_form.html.haml
@@ -16,10 +16,10 @@
       %p.help-block
         - if issuable.work_in_progress?
           Remove the <code>WIP</code> prefix from the title to allow this
-          <strong>Work In Progress</strong> merge request to be accepted when it's ready.
+          <strong>Work In Progress</strong> merge request to be merged when it's ready.
         - else
           Start the title with <code>[WIP]</code> or <code>WIP:</code> to prevent a
-          <strong>Work In Progress</strong> merge request from being accepted before it's ready.
+          <strong>Work In Progress</strong> merge request from being merged before it's ready.
 .form-group.issuable-description
   = f.label :description, 'Description', class: 'control-label'
   .col-sm-10
diff --git a/app/workers/auto_merge_worker.rb b/app/workers/auto_merge_worker.rb
deleted file mode 100644
index a6dd73eee5f81c8cff509d63b2294c0b05ae26a0..0000000000000000000000000000000000000000
--- a/app/workers/auto_merge_worker.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class AutoMergeWorker
-  include Sidekiq::Worker
-
-  sidekiq_options queue: :default
-
-  def perform(merge_request_id, current_user_id, params)
-    params = params.with_indifferent_access
-    current_user = User.find(current_user_id)
-    merge_request = MergeRequest.find(merge_request_id)
-    merge_request.should_remove_source_branch = params[:should_remove_source_branch]
-    merge_request.automerge!(current_user, params[:commit_message])
-  end
-end
diff --git a/app/workers/merge_worker.rb b/app/workers/merge_worker.rb
new file mode 100644
index 0000000000000000000000000000000000000000..6a8665c179ab89057561511623dae4949e890c75
--- /dev/null
+++ b/app/workers/merge_worker.rb
@@ -0,0 +1,19 @@
+class MergeWorker
+  include Sidekiq::Worker
+
+  sidekiq_options queue: :default
+
+  def perform(merge_request_id, current_user_id, params)
+    params = params.with_indifferent_access
+    current_user = User.find(current_user_id)
+    merge_request = MergeRequest.find(merge_request_id)
+
+    result = MergeRequests::MergeService.new(merge_request.target_project, current_user).
+      execute(merge_request, params[:commit_message])
+
+    if result[:status] == :success && params[:should_remove_source_branch].present?
+      DeleteBranchService.new(merge_request.source_project, current_user).
+        execute(merge_request.source_branch)
+    end
+  end
+end
diff --git a/app/workers/repository_import_worker.rb b/app/workers/repository_import_worker.rb
index 94832872d13ddccb192eaf05ac1d29f269b1bd57..b546f8777e158405b5459338f0944ab2b677e42f 100644
--- a/app/workers/repository_import_worker.rb
+++ b/app/workers/repository_import_worker.rb
@@ -27,7 +27,6 @@ class RepositoryImportWorker
 
     project.import_finish
     project.save
-    project.satellite.create unless project.satellite.exists?
     ProjectCacheWorker.perform_async(project.id)
     Gitlab::BitbucketImport::KeyDeleter.new(project).execute if project.import_type == 'bitbucket'
   end
diff --git a/config/routes.rb b/config/routes.rb
index 1166a4b3ebae33ad7221051987189b494f724b68..d7307a61ede75414c336cdff3e778c8e4cbcb912 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -463,8 +463,8 @@ Gitlab::Application.routes.draw do
           member do
             get :diffs
             get :commits
-            post :automerge
-            get :automerge_check
+            post :merge
+            get :merge_check
             get :ci_status
             post :toggle_subscription
           end
diff --git a/doc/development/architecture.md b/doc/development/architecture.md
index 541af487bb1fc71f34367ce0258408d77f790b62..c00d290371e032e45beea68e51236ea00f54db55 100644
--- a/doc/development/architecture.md
+++ b/doc/development/architecture.md
@@ -56,9 +56,9 @@ To serve repositories over SSH there's an add-on application called gitlab-shell
 
 A typical install of GitLab will be on GNU/Linux. It uses Nginx or Apache as a web front end to proxypass the Unicorn web server. By default, communication between Unicorn and the front end is via a Unix domain socket but forwarding requests via TCP is also supported. The web front end accesses `/home/git/gitlab/public` bypassing the Unicorn server to serve static pages, uploads (e.g. avatar images or attachments), and precompiled assets. GitLab serves web pages and a [GitLab API](https://gitlab.com/gitlab-org/gitlab-ce/tree/master/doc/api) using the Unicorn web server. It uses Sidekiq as a job queue which, in turn, uses redis as a non-persistent database backend for job information, meta data, and incoming jobs.
 
-The GitLab web app uses MySQL or PostgreSQL for persistent database information (e.g. users, permissions, issues, other meta data). GitLab stores the bare git repositories it serves in `/home/git/repositories` by default. It also keeps default branch and hook information with the bare repository. `/home/git/gitlab-satellites` keeps checked out repositories when performing actions such as a merge request, editing files in the web interface, etc.
+The GitLab web app uses MySQL or PostgreSQL for persistent database information (e.g. users, permissions, issues, other meta data). GitLab stores the bare git repositories it serves in `/home/git/repositories` by default. It also keeps default branch and hook information with the bare repository.
 
-The satellite repository is used by the web interface for editing repositories and the wiki which is also a git repository. When serving repositories over HTTP/HTTPS GitLab utilizes the GitLab API to resolve authorization and access as well as serving git objects.
+When serving repositories over HTTP/HTTPS GitLab utilizes the GitLab API to resolve authorization and access as well as serving git objects.
 
 The add-on component gitlab-shell serves repositories over SSH. It manages the SSH keys within `/home/git/.ssh/authorized_keys` which should not be manually edited. gitlab-shell accesses the bare repositories directly to serve git objects and communicates with redis to submit jobs to Sidekiq for GitLab to process. gitlab-shell queries the GitLab API to determine authorization and access.
 
@@ -129,7 +129,7 @@ Note: `/home/git/` is shorthand for `/home/git`.
 
 gitlabhq (includes Unicorn and Sidekiq logs)
 
-- `/home/git/gitlab/log/` contains `application.log`, `production.log`, `sidekiq.log`, `unicorn.stdout.log`, `githost.log`, `satellites.log`, and `unicorn.stderr.log` normally.
+- `/home/git/gitlab/log/` contains `application.log`, `production.log`, `sidekiq.log`, `unicorn.stdout.log`, `githost.log` and `unicorn.stderr.log` normally.
 
 gitlab-shell
 
diff --git a/doc/install/installation.md b/doc/install/installation.md
index 6e2bb4191ca42060a10705f0a14de4fce0040dd8..55b6f216dde7bb42f42647d2765224545fc4c3c1 100644
--- a/doc/install/installation.md
+++ b/doc/install/installation.md
@@ -216,10 +216,6 @@ We recommend using a PostgreSQL database. For MySQL check [MySQL setup guide](da
     sudo chmod -R u+rwX,go-w log/
     sudo chmod -R u+rwX tmp/
 
-    # Create directory for satellites
-    sudo -u git -H mkdir /home/git/gitlab-satellites
-    sudo chmod u+rwx,g=rx,o-rwx /home/git/gitlab-satellites
-
     # Make sure GitLab can write to the tmp/pids/ and tmp/sockets/ directories
     sudo chmod -R u+rwX tmp/pids/
     sudo chmod -R u+rwX tmp/sockets/
diff --git a/doc/install/requirements.md b/doc/install/requirements.md
index a78590d512a75a4ce2b4eb0a94952af9e28e0a97..aa0d03b75bcc45bd6db3f5d6f8ed17194b0e2e83 100644
--- a/doc/install/requirements.md
+++ b/doc/install/requirements.md
@@ -40,7 +40,7 @@ We love [JRuby](http://jruby.org/) and [Rubinius](http://rubini.us/) but GitLab
 
 ### Storage
 
-The necessary hard drive space largely depends on the size of the repos you want to store in GitLab but as a *rule of thumb* you should have at least twice as much free space as all your repos combined take up. You need twice the storage because [GitLab satellites](structure.md) contain an extra copy of each repo.
+The necessary hard drive space largely depends on the size of the repos you want to store in GitLab but as a *rule of thumb* you should have at least as much free space as all your repos combined take up. 
 
 If you want to be flexible about growing your hard drive space in the future consider mounting it using LVM so you can add more hard drives when you need them.
 
@@ -113,4 +113,4 @@ On a very active server (10,000 active users) the Sidekiq process can use 1GB+ o
 
 ### Common UI problems with IE
 
-If you experience UI issues with Internet Explorer, please make sure that you have the `Compatibility View` mode disabled.
+If you experience UI issues with Internet Explorer, please make sure that you have the `Compatibility View` mode disabled.
\ No newline at end of file
diff --git a/doc/install/structure.md b/doc/install/structure.md
index 5c03f073c18c57094dc1d35d82f06eb318e4ebf1..d58b0040eefb80f92f7214f751734f27a467eb0d 100644
--- a/doc/install/structure.md
+++ b/doc/install/structure.md
@@ -6,16 +6,14 @@ This is the directory structure you will end up with following the instructions
     |   |-- git
     |       |-- .ssh
     |       |-- gitlab
-    |       |-- gitlab-satellites
     |       |-- gitlab-shell
     |       |-- repositories
 
 * `/home/git/.ssh` - contains openssh settings.  Specifically the `authorized_keys` file managed by gitlab-shell.
 * `/home/git/gitlab` - GitLab core software.
-* `/home/git/gitlab-satellites` - checked out repositories for merge requests and file editing from web UI.  This can be treated as a temporary files directory.
 * `/home/git/gitlab-shell` - Core add-on component of GitLab.  Maintains SSH cloning and other functionality.
 * `/home/git/repositories` - bare repositories for all projects organized by namespace.  This is where the git repositories which are pushed/pulled are maintained for all projects.  **This area is critical data for projects.  [Keep a backup](../raketasks/backup_restore.md)**
 
-*Note: the default locations for gitlab-satellites and repositories can be configured in `config/gitlab.yml` of GitLab and `config.yml` of gitlab-shell.*
+*Note: the default locations for repositories can be configured in `config/gitlab.yml` of GitLab and `config.yml` of gitlab-shell.*
 
 To see a more in-depth overview see the [GitLab architecture doc](../development/architecture.md).
diff --git a/doc/logs/logs.md b/doc/logs/logs.md
index 83c32b09253faea15241721afd0d40b925e56d31..27937e517644922d36930c923e1bd90f91c58e83 100644
--- a/doc/logs/logs.md
+++ b/doc/logs/logs.md
@@ -51,16 +51,6 @@ December 03, 2014 13:20 -> ERROR -> Command failed [1]: /usr/bin/git --git-dir=/
 error: failed to push some refs to '/Users/vsizov/gitlab-development-kit/repositories/gitlabhq/gitlab_git.git'
 ```
 
-#### satellites.log
-This file lives in `/var/log/gitlab/gitlab-rails/satellites.log` for omnibus package or in `/home/git/gitlab/log/satellites.log` for installations from the source.
-
-In some cases GitLab should perform write actions to git repository, for example when it is needed to merge the merge request or edit a file with online editor. If something went wrong you can look into this file to find out what exactly happened.
-```
-October 07, 2014 11:36: Failed to create satellite for Chesley Weimann III / project1817
-October 07, 2014 11:36: PID: 1872: git clone /Users/vsizov/gitlab-development-kit/gitlab/tmp/tests/repositories/conrad6841/gitlabhq.git /Users/vsizov/gitlab-development-kit/gitlab/tmp/tests/gitlab-satellites/conrad6841/gitlabhq
-October 07, 2014 11:36: PID: 1872: -> fatal: repository '/Users/vsizov/gitlab-development-kit/gitlab/tmp/tests/repositories/conrad6841/gitlabhq.git' does not exist
-```
-
 #### sidekiq.log
 This file lives in `/var/log/gitlab/gitlab-rails/sidekiq.log` for omnibus package or in `/home/git/gitlab/log/sidekiq.log` for installations from the source.
 
@@ -99,4 +89,4 @@ W, [2015-02-13T07:16:01.313000 #9094]  WARN -- : Unicorn::WorkerKiller send SIGQ
 I, [2015-02-13T07:16:01.530733 #9047]  INFO -- : reaped #<Process::Status: pid 9094 exit 0> worker=1
 I, [2015-02-13T07:16:01.534501 #13379]  INFO -- : worker=1 spawned pid=13379
 I, [2015-02-13T07:16:01.534848 #13379]  INFO -- : worker=1 ready
-```
\ No newline at end of file
+```
diff --git a/doc/raketasks/maintenance.md b/doc/raketasks/maintenance.md
index 69171cd17654f83b6a98d5abcfdc5f373fdf9da8..d9dce2af480ca40ab9d3c1f6b5a8e89087e94acf 100644
--- a/doc/raketasks/maintenance.md
+++ b/doc/raketasks/maintenance.md
@@ -105,24 +105,11 @@ Log directory writable? ... yes
 Tmp directory writable? ... yes
 Init script exists? ... yes
 Init script up-to-date? ... yes
-Projects have satellites? ... yes
 Redis version >= 2.0.0? ... yes
 
 Checking GitLab ... Finished
 ```
 
-## (Re-)Create satellite repositories
-
-This will create satellite repositories for all your projects.
-
-If necessary, remove the `repo_satellites` directory and rerun the commands below.
-
-```
-sudo -u git -H mkdir -p /home/git/gitlab-satellites
-sudo -u git -H bundle exec rake gitlab:satellites:create RAILS_ENV=production
-sudo chmod u+rwx,g=rx,o-rwx /home/git/gitlab-satellites
-```
-
 ## Rebuild authorized_keys file
 
 In some case it is necessary to rebuild the `authorized_keys` file.
diff --git a/doc/workflow/README.md b/doc/workflow/README.md
index 3915198ad2a3ee755807ffb3e63cbb9bd1aafa7f..5b8d72dfd340f60368827d46844cbf4cc595a2f8 100644
--- a/doc/workflow/README.md
+++ b/doc/workflow/README.md
@@ -13,4 +13,5 @@
 - [Project users](add-user/add-user.md)
 - [Protected branches](protected_branches.md)
 - [Web Editor](web_editor.md)
+- [Merge Requests](merge_requests.md)
 - ["Work In Progress" Merge Requests](wip_merge_requests.md)
diff --git a/doc/workflow/merge_requests.md b/doc/workflow/merge_requests.md
new file mode 100644
index 0000000000000000000000000000000000000000..751e19da7f19a5820bb40e8b4f2a79eb8bb7cc0c
--- /dev/null
+++ b/doc/workflow/merge_requests.md
@@ -0,0 +1,40 @@
+# Merge Requests
+
+Merge requests allow you to exchange changes you made to source code
+
+## Checkout merge requests locally
+
+Locate the section for your GitLab remote in the `.git/config` file. It looks like this:
+
+```
+[remote "origin"]
+  url = https://gitlab.com/gitlab-org/gitlab-ce.git
+  fetch = +refs/heads/*:refs/remotes/origin/*
+```
+
+Now add the line `fetch = +refs/merge-requests/*/head:refs/remotes/origin/merge-requests/*` to this section. 
+
+It should looks like this: 
+
+```
+[remote "origin"]
+  url = https://gitlab.com/gitlab-org/gitlab-ce.git
+  fetch = +refs/heads/*:refs/remotes/origin/*
+  fetch = +refs/merge-requests/*/head:refs/remotes/origin/merge-requests/*
+```
+
+Now you can fetch all the merge requests requests:
+
+```
+$ git fetch origin
+From https://gitlab.com/gitlab-org/gitlab-ce.git
+ * [new ref]         refs/merge-requests/1/head -> origin/merge-requests/1
+ * [new ref]         refs/merge-requests/2/head -> origin/merge-requests/2
+...
+```
+
+To check out a particular merge request:
+
+```
+$ git checkout origin/merge-requests/1
+```
diff --git a/features/steps/dashboard/help.rb b/features/steps/dashboard/help.rb
index 86ab31a58aba4eb45aa51cffdc2b328c3e3a2ecf..800e869533e927f12fb2bd99e1db30535e69f30e 100644
--- a/features/steps/dashboard/help.rb
+++ b/features/steps/dashboard/help.rb
@@ -16,6 +16,6 @@ class Spinach::Features::DashboardHelp < Spinach::FeatureSteps
   end
 
   step 'Header "Rebuild project satellites" should have correct ids and links' do
-    header_should_have_correct_id_and_link(2, '(Re-)Create satellite repositories', 're-create-satellite-repositories', '.documentation')
+    header_should_have_correct_id_and_link(2, 'Check GitLab configuration', 'check-gitlab-configuration', '.documentation')
   end
 end
diff --git a/features/steps/dashboard/merge_requests.rb b/features/steps/dashboard/merge_requests.rb
index cec8d06adee62b66a48bc7eb7803e8a0799c25e9..28c8c6b6015147ca49946968163ea9d6dcda01c5 100644
--- a/features/steps/dashboard/merge_requests.rb
+++ b/features/steps/dashboard/merge_requests.rb
@@ -66,7 +66,7 @@ class Spinach::Features::DashboardMergeRequests < Spinach::FeatureSteps
 
   def authored_merge_request
     @authored_merge_request ||= create :merge_request,
-                                  source_branch: 'simple_merge_request',
+                                  source_branch: 'markdown',
                                   author: current_user,
                                   target_project: project,
                                   source_project: project
@@ -74,14 +74,14 @@ class Spinach::Features::DashboardMergeRequests < Spinach::FeatureSteps
 
   def other_merge_request
     @other_merge_request ||= create :merge_request,
-                              source_branch: '2_3_notes_fix',
+                              source_branch: 'fix',
                               target_project: project,
                               source_project: project
   end
 
   def authored_merge_request_from_fork
     @authored_merge_request_from_fork ||= create :merge_request,
-                                            source_branch: 'basic_page',
+                                            source_branch: 'feature_conflict',
                                             author: current_user,
                                             target_project: public_project,
                                             source_project: forked_project
@@ -89,7 +89,7 @@ class Spinach::Features::DashboardMergeRequests < Spinach::FeatureSteps
 
   def assigned_merge_request_from_fork
     @assigned_merge_request_from_fork ||= create :merge_request,
-                                            source_branch: 'basic_page_fix',
+                                            source_branch: 'markdown',
                                             assignee: current_user,
                                             target_project: public_project,
                                             source_project: forked_project
diff --git a/features/steps/project/forked_merge_requests.rb b/features/steps/project/forked_merge_requests.rb
index 3e97e84d116164b55ddec7002c6233703f1cd1f6..2a333222fb29b024a6e0e7b3ad164d8a04f5ca1a 100644
--- a/features/steps/project/forked_merge_requests.rb
+++ b/features/steps/project/forked_merge_requests.rb
@@ -9,7 +9,6 @@ class Spinach::Features::ProjectForkedMergeRequests < Spinach::FeatureSteps
     @project = Project.find_by(name: "Shop")
     @project ||= create(:project, name: "Shop")
     @project.team << [@user, :reporter]
-    @project.ensure_satellite_exists
   end
 
   step 'I have a project forked off of "Shop" called "Forked Shop"' do
diff --git a/features/steps/project/merge_requests.rb b/features/steps/project/merge_requests.rb
index a1a26abd8ca7b25d8b6069ab46306a1a3bc601cb..f2198f58c137385288dac11526b71c5f9b59e5d3 100644
--- a/features/steps/project/merge_requests.rb
+++ b/features/steps/project/merge_requests.rb
@@ -198,15 +198,10 @@ class Spinach::Features::ProjectMergeRequests < Spinach::FeatureSteps
   end
 
   step 'merge request "Bug NS-05" is mergeable' do
-    merge_request.project.satellite.create
     merge_request.mark_as_mergeable
   end
 
   step 'I accept this merge request' do
-    Gitlab::Satellite::MergeAction.any_instance.stub(
-      merge!: true,
-    )
-
     page.within '.mr-state-widget' do
       click_button "Accept Merge Request"
     end
diff --git a/lib/api/files.rb b/lib/api/files.rb
index 83581cd3990fe522139ad3ec0c0db335c8aca24a..308c84dd13586c6d5d09d504fa4d3a14a452e7aa 100644
--- a/lib/api/files.rb
+++ b/lib/api/files.rb
@@ -3,6 +3,26 @@ module API
   class Files < Grape::API
     before { authenticate! }
 
+    helpers do
+      def commit_params(attrs)
+        {
+          file_path: attrs[:file_path],
+          current_branch: attrs[:branch_name],
+          target_branch: attrs[:branch_name],
+          commit_message: attrs[:commit_message],
+          file_content: attrs[:content],
+          file_content_encoding: attrs[:encoding]
+        }
+      end
+
+      def commit_response(attrs)
+        {
+          file_path: attrs[:file_path],
+          branch_name: attrs[:branch_name],
+        }
+      end
+    end
+
     resource :projects do
       # Get file from repository
       # File content is Base64 encoded
@@ -73,17 +93,11 @@ module API
 
         required_attributes! [:file_path, :branch_name, :content, :commit_message]
         attrs = attributes_for_keys [:file_path, :branch_name, :content, :commit_message, :encoding]
-        branch_name = attrs.delete(:branch_name)
-        file_path = attrs.delete(:file_path)
-        result = ::Files::CreateService.new(user_project, current_user, attrs, branch_name, file_path).execute
+        result = ::Files::CreateService.new(user_project, current_user, commit_params(attrs)).execute
 
         if result[:status] == :success
           status(201)
-
-          {
-            file_path: file_path,
-            branch_name: branch_name
-          }
+          commit_response(attrs)
         else
           render_api_error!(result[:message], 400)
         end
@@ -105,17 +119,11 @@ module API
 
         required_attributes! [:file_path, :branch_name, :content, :commit_message]
         attrs = attributes_for_keys [:file_path, :branch_name, :content, :commit_message, :encoding]
-        branch_name = attrs.delete(:branch_name)
-        file_path = attrs.delete(:file_path)
-        result = ::Files::UpdateService.new(user_project, current_user, attrs, branch_name, file_path).execute
+        result = ::Files::UpdateService.new(user_project, current_user, commit_params(attrs)).execute
 
         if result[:status] == :success
           status(200)
-
-          {
-            file_path: file_path,
-            branch_name: branch_name
-          }
+          commit_response(attrs)
         else
           http_status = result[:http_status] || 400
           render_api_error!(result[:message], http_status)
@@ -138,17 +146,11 @@ module API
 
         required_attributes! [:file_path, :branch_name, :commit_message]
         attrs = attributes_for_keys [:file_path, :branch_name, :commit_message]
-        branch_name = attrs.delete(:branch_name)
-        file_path = attrs.delete(:file_path)
-        result = ::Files::DeleteService.new(user_project, current_user, attrs, branch_name, file_path).execute
+        result = ::Files::DeleteService.new(user_project, current_user, commit_params(attrs)).execute
 
         if result[:status] == :success
           status(200)
-
-          {
-            file_path: file_path,
-            branch_name: branch_name
-          }
+          commit_response(attrs)
         else
           render_api_error!(result[:message], 400)
         end
diff --git a/lib/api/merge_requests.rb b/lib/api/merge_requests.rb
index ce21c699e8fc0259b7bfb2627414d7cdecc77ca1..7412274b0454f89d11dca509ed167fc3e1e6f1d3 100644
--- a/lib/api/merge_requests.rb
+++ b/lib/api/merge_requests.rb
@@ -198,7 +198,11 @@ module API
 
           if merge_request.open? && !merge_request.work_in_progress?
             if merge_request.can_be_merged?
-              merge_request.automerge!(current_user, params[:merge_commit_message] || merge_request.merge_commit_message)
+              commit_message = params[:merge_commit_message] || merge_request.merge_commit_message
+
+              ::MergeRequests::MergeService.new(merge_request.target_project, current_user).
+                execute(merge_request, commit_message)
+
               present merge_request, with: Entities::MergeRequest
             else
               render_api_error!('Branch cannot be merged', 405)
diff --git a/lib/gitlab.rb b/lib/gitlab.rb
index 5fc1862c3e931f3ec7ab8907c0ce25f192c67a52..6108697bc2012e22d96896194df7c7cadbc5b125 100644
--- a/lib/gitlab.rb
+++ b/lib/gitlab.rb
@@ -1,5 +1,4 @@
 require 'gitlab/git'
 
 module Gitlab
-  autoload :Satellite, 'gitlab/satellite/satellite'
 end
diff --git a/lib/gitlab/backend/shell.rb b/lib/gitlab/backend/shell.rb
index 172d4902add336e73894828004322d14a06969ab..14ee4701e7bb9faa44e664c9c36124a91efd4305 100644
--- a/lib/gitlab/backend/shell.rb
+++ b/lib/gitlab/backend/shell.rb
@@ -217,20 +217,6 @@ module Gitlab
       FileUtils.mv(full_path(old_name), full_path(new_name))
     end
 
-    # Remove GitLab Satellites for provided path (namespace or repo dir)
-    #
-    # Ex.
-    #   rm_satellites("gitlab")
-    #
-    #   rm_satellites("gitlab/gitlab-ci.git")
-    #
-    def rm_satellites(path)
-      raise ArgumentError.new("Path can't be blank") if path.blank?
-
-      satellites_path = File.join(Gitlab.config.satellites.path, path)
-      FileUtils.rm_r(satellites_path, force: true)
-    end
-
     def url_to_repo(path)
       Gitlab.config.gitlab_shell.ssh_path_prefix + "#{path}.git"
     end
diff --git a/lib/gitlab/satellite/action.rb b/lib/gitlab/satellite/action.rb
deleted file mode 100644
index 489070f1a3f4dcecc2fde5e530ec2230b2e1e420..0000000000000000000000000000000000000000
--- a/lib/gitlab/satellite/action.rb
+++ /dev/null
@@ -1,58 +0,0 @@
-module Gitlab
-  module Satellite
-    class Action
-      DEFAULT_OPTIONS = { git_timeout: Gitlab.config.satellites.timeout.seconds }
-
-      attr_accessor :options, :project, :user
-
-      def initialize(user, project, options = {})
-        @options = DEFAULT_OPTIONS.merge(options)
-        @project = project
-        @user = user
-      end
-
-      protected
-
-      # * Sets a 30s timeout for Git
-      # * Locks the satellite repo
-      # * Yields the prepared satellite repo
-      def in_locked_and_timed_satellite
-        Gitlab::ShellEnv.set_env(user)
-
-        Grit::Git.with_timeout(options[:git_timeout]) do
-          project.satellite.lock do
-            return yield project.satellite.repo
-          end
-        end
-      rescue Errno::ENOMEM => ex
-        return handle_exception(ex)
-      rescue Grit::Git::GitTimeout => ex
-        return handle_exception(ex)
-      ensure
-        Gitlab::ShellEnv.reset_env
-      end
-
-      # * Recreates the satellite
-      # * Sets up Git variables for the user
-      #
-      # Note: use this within #in_locked_and_timed_satellite
-      def prepare_satellite!(repo)
-        project.satellite.clear_and_update!
-
-        if user
-          repo.config['user.name'] = user.name
-          repo.config['user.email'] = user.email
-        end
-      end
-
-      def default_options(options = {})
-        { raise: true, timeout: true }.merge(options)
-      end
-
-      def handle_exception(exception)
-        Gitlab::GitLogger.error(exception.message)
-        false
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/satellite/compare_action.rb b/lib/gitlab/satellite/compare_action.rb
deleted file mode 100644
index 46c98a8f4cab479a6bfa2f5ee6483864403fd807..0000000000000000000000000000000000000000
--- a/lib/gitlab/satellite/compare_action.rb
+++ /dev/null
@@ -1,44 +0,0 @@
-module Gitlab
-  module Satellite
-    class BranchesWithoutParent < StandardError; end
-
-    class CompareAction < Action
-      def initialize(user, target_project, target_branch, source_project, source_branch)
-        super user, target_project
-
-        @target_project, @target_branch = target_project, target_branch
-        @source_project, @source_branch = source_project, source_branch
-      end
-
-      # Compare 2 repositories and return Gitlab::CompareResult object
-      def result
-        in_locked_and_timed_satellite do |target_repo|
-          prepare_satellite!(target_repo)
-          update_satellite_source_and_target!(target_repo)
-
-          Gitlab::CompareResult.new(compare(target_repo))
-        end
-      rescue Grit::Git::CommandFailed => ex
-        raise BranchesWithoutParent
-      end
-
-      private
-
-      # Assumes a satellite exists that is a fresh clone of the projects repo, prepares satellite for diffs
-      def update_satellite_source_and_target!(target_repo)
-        target_repo.remote_add('source', @source_project.repository.path_to_repo)
-        target_repo.remote_fetch('source')
-      rescue Grit::Git::CommandFailed => ex
-        handle_exception(ex)
-      end
-
-      def compare(repo)
-        @compare ||= Gitlab::Git::Compare.new(
-          Gitlab::Git::Repository.new(repo.path),
-          "origin/#{@target_branch}",
-          "source/#{@source_branch}"
-        )
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/satellite/files/delete_file_action.rb b/lib/gitlab/satellite/files/delete_file_action.rb
deleted file mode 100644
index 0d37b9dea8502e765aed57cfedfea514f29dcc9e..0000000000000000000000000000000000000000
--- a/lib/gitlab/satellite/files/delete_file_action.rb
+++ /dev/null
@@ -1,50 +0,0 @@
-require_relative 'file_action'
-
-module Gitlab
-  module Satellite
-    class DeleteFileAction < FileAction
-      # Deletes file and creates a new commit for it
-      #
-      # Returns false if committing the change fails
-      # Returns false if pushing from the satellite to bare repo failed or was rejected
-      # Returns true otherwise
-      def commit!(content, commit_message)
-        in_locked_and_timed_satellite do |repo|
-          prepare_satellite!(repo)
-
-          # create target branch in satellite at the corresponding commit from bare repo
-          repo.git.checkout({ raise: true, timeout: true, b: true }, ref, "origin/#{ref}")
-
-          # update the file in the satellite's working dir
-          file_path_in_satellite = File.join(repo.working_dir, file_path)
-
-          # Prevent relative links
-          unless safe_path?(file_path_in_satellite)
-            Gitlab::GitLogger.error("FileAction: Relative path not allowed")
-            return false
-          end
-
-          File.delete(file_path_in_satellite)
-
-          # add removed file
-          repo.remove(file_path_in_satellite)
-
-          # commit the changes
-          # will raise CommandFailed when commit fails
-          repo.git.commit(raise: true, timeout: true, a: true, m: commit_message)
-
-
-          # push commit back to bare repo
-          # will raise CommandFailed when push fails
-          repo.git.push({ raise: true, timeout: true }, :origin, ref)
-
-          # everything worked
-          true
-        end
-      rescue Grit::Git::CommandFailed => ex
-        Gitlab::GitLogger.error(ex.message)
-        false
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/satellite/files/edit_file_action.rb b/lib/gitlab/satellite/files/edit_file_action.rb
deleted file mode 100644
index 3cb9c0b5ecbceed9529812162d235befca60ffb7..0000000000000000000000000000000000000000
--- a/lib/gitlab/satellite/files/edit_file_action.rb
+++ /dev/null
@@ -1,68 +0,0 @@
-require_relative 'file_action'
-
-module Gitlab
-  module Satellite
-    # GitLab server-side file update and commit
-    class EditFileAction < FileAction
-      # Updates the files content and creates a new commit for it
-      #
-      # Returns false if the ref has been updated while editing the file
-      # Returns false if committing the change fails
-      # Returns false if pushing from the satellite to bare repo failed or was rejected
-      # Returns true otherwise
-      def commit!(content, commit_message, encoding, new_branch = nil)
-        in_locked_and_timed_satellite do |repo|
-          prepare_satellite!(repo)
-
-          # create target branch in satellite at the corresponding commit from bare repo
-          begin
-            repo.git.checkout({ raise: true, timeout: true, b: true }, ref, "origin/#{ref}")
-          rescue Grit::Git::CommandFailed => ex
-            log_and_raise(CheckoutFailed, ex.message)
-          end
-
-          # update the file in the satellite's working dir
-          file_path_in_satellite = File.join(repo.working_dir, file_path)
-
-          # Prevent relative links
-          unless safe_path?(file_path_in_satellite)
-            Gitlab::GitLogger.error("FileAction: Relative path not allowed")
-            return false
-          end
-
-          # Write file
-          write_file(file_path_in_satellite, content, encoding)
-
-          # commit the changes
-          # will raise CommandFailed when commit fails
-          begin
-            repo.git.commit(raise: true, timeout: true, a: true, m: commit_message)
-          rescue Grit::Git::CommandFailed => ex
-            log_and_raise(CommitFailed, ex.message)
-          end
-
-
-          target_branch = new_branch.present? ? "#{ref}:#{new_branch}" : ref
-
-          # push commit back to bare repo
-          # will raise CommandFailed when push fails
-          begin
-            repo.git.push({ raise: true, timeout: true }, :origin, target_branch)
-          rescue Grit::Git::CommandFailed => ex
-            log_and_raise(PushFailed, ex.message)
-          end
-
-          # everything worked
-          true
-        end
-      end
-
-      private
-
-      def log_and_raise(errorClass, message)
-        Gitlab::GitLogger.error(message)
-        raise(errorClass, message)
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/satellite/files/file_action.rb b/lib/gitlab/satellite/files/file_action.rb
deleted file mode 100644
index 6446b14568a5de087d3e0cbbf91506dacf24fa74..0000000000000000000000000000000000000000
--- a/lib/gitlab/satellite/files/file_action.rb
+++ /dev/null
@@ -1,25 +0,0 @@
-module Gitlab
-  module Satellite
-    class FileAction < Action
-      attr_accessor :file_path, :ref
-
-      def initialize(user, project, ref, file_path)
-        super user, project
-        @file_path = file_path
-        @ref = ref
-      end
-
-      def safe_path?(path)
-        File.absolute_path(path) == path
-      end
-
-      def write_file(abs_file_path, content, file_encoding = 'text')
-        if file_encoding == 'base64'
-          File.open(abs_file_path, 'wb') { |f| f.write(Base64.decode64(content)) }
-        else
-          File.open(abs_file_path, 'w') { |f| f.write(content) }
-        end
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/satellite/files/new_file_action.rb b/lib/gitlab/satellite/files/new_file_action.rb
deleted file mode 100644
index 724dfa0d042e1a80376a40dad4a34967998fdf5e..0000000000000000000000000000000000000000
--- a/lib/gitlab/satellite/files/new_file_action.rb
+++ /dev/null
@@ -1,67 +0,0 @@
-require_relative 'file_action'
-
-module Gitlab
-  module Satellite
-    class NewFileAction < FileAction
-      # Updates the files content and creates a new commit for it
-      #
-      # Returns false if the ref has been updated while editing the file
-      # Returns false if committing the change fails
-      # Returns false if pushing from the satellite to bare repo failed or was rejected
-      # Returns true otherwise
-      def commit!(content, commit_message, encoding, new_branch = nil)
-        in_locked_and_timed_satellite do |repo|
-          prepare_satellite!(repo)
-
-          # create target branch in satellite at the corresponding commit from bare repo
-          current_ref =
-            if @project.empty_repo?
-              # skip this step if we want to add first file to empty repo
-              Satellite::PARKING_BRANCH
-            else
-              repo.git.checkout({ raise: true, timeout: true, b: true }, ref, "origin/#{ref}")
-              ref
-            end
-
-          file_path_in_satellite = File.join(repo.working_dir, file_path)
-          dir_name_in_satellite = File.dirname(file_path_in_satellite)
-
-          # Prevent relative links
-          unless safe_path?(file_path_in_satellite)
-            Gitlab::GitLogger.error("FileAction: Relative path not allowed")
-            return false
-          end
-
-          # Create dir if not exists
-          FileUtils.mkdir_p(dir_name_in_satellite)
-
-          # Write file
-          write_file(file_path_in_satellite, content, encoding)
-
-          # add new file
-          repo.add(file_path_in_satellite)
-
-          # commit the changes
-          # will raise CommandFailed when commit fails
-          repo.git.commit(raise: true, timeout: true, a: true, m: commit_message)
-
-          target_branch = if new_branch.present? && !@project.empty_repo?
-                            "#{ref}:#{new_branch}"
-                          else
-                            "#{current_ref}:#{ref}"
-                          end
-
-          # push commit back to bare repo
-          # will raise CommandFailed when push fails
-          repo.git.push({ raise: true, timeout: true }, :origin, target_branch)
-
-          # everything worked
-          true
-        end
-      rescue Grit::Git::CommandFailed => ex
-        Gitlab::GitLogger.error(ex.message)
-        false
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/satellite/logger.rb b/lib/gitlab/satellite/logger.rb
deleted file mode 100644
index 6f3f8255aca11e5b9c77bf98bd968a299e3c9756..0000000000000000000000000000000000000000
--- a/lib/gitlab/satellite/logger.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-module Gitlab
-  module Satellite
-    class Logger < Gitlab::Logger
-      def self.file_name
-        'satellites.log'
-      end
-
-      def format_message(severity, timestamp, progname, msg)
-        "#{timestamp.to_s(:long)}: #{msg}\n"
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/satellite/merge_action.rb b/lib/gitlab/satellite/merge_action.rb
deleted file mode 100644
index f9bf286697ed436096a07158e7c71d625157775b..0000000000000000000000000000000000000000
--- a/lib/gitlab/satellite/merge_action.rb
+++ /dev/null
@@ -1,146 +0,0 @@
-module Gitlab
-  module Satellite
-    # GitLab server-side merge
-    class MergeAction < Action
-      attr_accessor :merge_request
-
-      def initialize(user, merge_request)
-        super user, merge_request.target_project
-        @merge_request = merge_request
-      end
-
-      # Checks if a merge request can be executed without user interaction
-      def can_be_merged?
-        in_locked_and_timed_satellite do |merge_repo|
-          prepare_satellite!(merge_repo)
-          merge_in_satellite!(merge_repo)
-        end
-      end
-
-      # Merges the source branch into the target branch in the satellite and
-      # pushes it back to the repository.
-      # It also removes the source branch if requested in the merge request (and this is permitted by the merge request).
-      #
-      # Returns false if the merge produced conflicts
-      # Returns false if pushing from the satellite to the repository failed or was rejected
-      # Returns true otherwise
-      def merge!(merge_commit_message = nil)
-        in_locked_and_timed_satellite do |merge_repo|
-          prepare_satellite!(merge_repo)
-          if merge_in_satellite!(merge_repo, merge_commit_message)
-            # push merge back to bare repo
-            # will raise CommandFailed when push fails
-            merge_repo.git.push(default_options, :origin, merge_request.target_branch)
-
-            # remove source branch
-            if merge_request.remove_source_branch?
-              # will raise CommandFailed when push fails
-              merge_repo.git.push(default_options, :origin, ":#{merge_request.source_branch}")
-            end
-            # merge, push and branch removal successful
-            true
-          end
-        end
-      rescue Grit::Git::CommandFailed => ex
-        handle_exception(ex)
-      end
-
-      def diff_in_satellite
-        in_locked_and_timed_satellite do |merge_repo|
-          prepare_satellite!(merge_repo)
-          update_satellite_source_and_target!(merge_repo)
-
-          # Only show what is new in the source branch compared to the target branch, not the other way around.
-          # The line below with merge_base is equivalent to diff with three dots (git diff branch1...branch2)
-          # From the git documentation: "git diff A...B" is equivalent to "git diff $(git-merge-base A B) B"
-          common_commit = merge_repo.git.native(:merge_base, default_options, ["origin/#{merge_request.target_branch}", "source/#{merge_request.source_branch}"]).strip
-          merge_repo.git.native(:diff, default_options, common_commit, "source/#{merge_request.source_branch}")
-        end
-      rescue Grit::Git::CommandFailed => ex
-        handle_exception(ex)
-      end
-
-      def diffs_between_satellite
-        in_locked_and_timed_satellite do |merge_repo|
-          prepare_satellite!(merge_repo)
-          update_satellite_source_and_target!(merge_repo)
-          if merge_request.for_fork?
-            repository = Gitlab::Git::Repository.new(merge_repo.path)
-            diffs = Gitlab::Git::Diff.between(
-              repository,
-              "source/#{merge_request.source_branch}",
-              "origin/#{merge_request.target_branch}"
-            )
-          else
-            raise "Attempt to determine diffs between for a non forked merge request in satellite MergeRequest.id:[#{merge_request.id}]"
-          end
-
-          return diffs
-        end
-      rescue Grit::Git::CommandFailed => ex
-        handle_exception(ex)
-      end
-
-      # Get commit as an email patch
-      def format_patch
-        in_locked_and_timed_satellite do |merge_repo|
-          prepare_satellite!(merge_repo)
-          update_satellite_source_and_target!(merge_repo)
-          patch = merge_repo.git.format_patch(default_options({ stdout: true }), "origin/#{merge_request.target_branch}..source/#{merge_request.source_branch}")
-        end
-      rescue Grit::Git::CommandFailed => ex
-        handle_exception(ex)
-      end
-
-      # Retrieve an array of commits between the source and the target
-      def commits_between
-        in_locked_and_timed_satellite do |merge_repo|
-          prepare_satellite!(merge_repo)
-          update_satellite_source_and_target!(merge_repo)
-          if merge_request.for_fork?
-            repository = Gitlab::Git::Repository.new(merge_repo.path)
-            commits = Gitlab::Git::Commit.between(
-              repository,
-              "origin/#{merge_request.target_branch}",
-              "source/#{merge_request.source_branch}"
-            )
-          else
-            raise "Attempt to determine commits between for a non forked merge request in satellite MergeRequest.id:[#{merge_request.id}]"
-          end
-
-          return commits
-        end
-      rescue Grit::Git::CommandFailed => ex
-        handle_exception(ex)
-      end
-
-      private
-      # Merges the source_branch into the target_branch in the satellite.
-      #
-      # Note: it will clear out the satellite before doing anything
-      #
-      # Returns false if the merge produced conflicts
-      # Returns true otherwise
-      def merge_in_satellite!(repo, message = nil)
-        update_satellite_source_and_target!(repo)
-
-        message ||= "Merge branch '#{merge_request.source_branch}' into '#{merge_request.target_branch}'"
-
-        # merge the source branch into the satellite
-        # will raise CommandFailed when merge fails
-        repo.git.merge(default_options({ no_ff: true }), "-m#{message}", "source/#{merge_request.source_branch}")
-      rescue Grit::Git::CommandFailed => ex
-        handle_exception(ex)
-      end
-
-      # Assumes a satellite exists that is a fresh clone of the projects repo, prepares satellite for merges, diffs etc
-      def update_satellite_source_and_target!(repo)
-        repo.remote_add('source', merge_request.source_project.repository.path_to_repo)
-        repo.remote_fetch('source')
-        repo.git.checkout(default_options({ b: true }), merge_request.target_branch, "origin/#{merge_request.target_branch}")
-      rescue Grit::Git::CommandFailed => ex
-        handle_exception(ex)
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/satellite/satellite.rb b/lib/gitlab/satellite/satellite.rb
deleted file mode 100644
index 398643d68de2c07a56ba30181786f693dae6219a..0000000000000000000000000000000000000000
--- a/lib/gitlab/satellite/satellite.rb
+++ /dev/null
@@ -1,148 +0,0 @@
-module Gitlab
-  module Satellite
-    autoload :DeleteFileAction, 'gitlab/satellite/files/delete_file_action'
-    autoload :EditFileAction,   'gitlab/satellite/files/edit_file_action'
-    autoload :FileAction,       'gitlab/satellite/files/file_action'
-    autoload :NewFileAction,    'gitlab/satellite/files/new_file_action'
-
-    class CheckoutFailed < StandardError; end
-    class CommitFailed < StandardError; end
-    class PushFailed < StandardError; end
-
-    class Satellite
-      include Gitlab::Popen
-
-      PARKING_BRANCH = "__parking_branch"
-
-      attr_accessor :project
-
-      def initialize(project)
-        @project = project
-      end
-
-      def log(message)
-        Gitlab::Satellite::Logger.error(message)
-      end
-
-      def clear_and_update!
-        project.ensure_satellite_exists
-
-        @repo = nil
-        clear_working_dir!
-        delete_heads!
-        remove_remotes!
-        update_from_source!
-      end
-
-      def create
-        output, status = popen(%W(git clone -- #{project.repository.path_to_repo} #{path}),
-                               Gitlab.config.satellites.path)
-
-        log("PID: #{project.id}: git clone #{project.repository.path_to_repo} #{path}")
-        log("PID: #{project.id}: -> #{output}")
-
-        if status.zero?
-          true
-        else
-          log("Failed to create satellite for #{project.name_with_namespace}")
-          false
-        end
-      end
-
-      def exists?
-        File.exists? path
-      end
-
-      # * Locks the satellite
-      # * Changes the current directory to the satellite's working dir
-      # * Yields
-      def lock
-        project.ensure_satellite_exists
-
-        File.open(lock_file, "w+") do |f|
-          begin
-            f.flock File::LOCK_EX
-            yield
-          ensure
-            f.flock File::LOCK_UN
-          end
-        end
-      end
-
-      def lock_file
-        create_locks_dir unless File.exists?(lock_files_dir)
-        File.join(lock_files_dir, "satellite_#{project.id}.lock")
-      end
-
-      def path
-        File.join(Gitlab.config.satellites.path, project.path_with_namespace)
-      end
-
-      def repo
-        project.ensure_satellite_exists
-
-        @repo ||= Grit::Repo.new(path)
-      end
-
-      def destroy
-        FileUtils.rm_rf(path)
-      end
-
-      private
-
-      # Clear the working directory
-      def clear_working_dir!
-        repo.git.reset(hard: true)
-        repo.git.clean(f: true, d: true, x: true)
-      end
-
-      # Deletes all branches except the parking branch
-      #
-      # This ensures we have no name clashes or issues updating branches when
-      # working with the satellite.
-      def delete_heads!
-        heads = repo.heads.map(&:name)
-
-        # update or create the parking branch
-        repo.git.checkout(default_options({ B: true }), PARKING_BRANCH)
-
-        # remove the parking branch from the list of heads ...
-        heads.delete(PARKING_BRANCH)
-        # ... and delete all others
-        heads.each { |head| repo.git.branch(default_options({ D: true }), head) }
-      end
-
-      # Deletes all remotes except origin
-      #
-      # This ensures we have no remote name clashes or issues updating branches when
-      # working with the satellite.
-      def remove_remotes!
-        remotes = repo.git.remote.split(' ')
-        remotes.delete('origin')
-        remotes.each { |name| repo.git.remote(default_options,'rm', name)}
-      end
-
-      # Updates the satellite from bare repo
-      #
-      # Note: this will only update remote branches (i.e. origin/*)
-      def update_from_source!
-        repo.git.remote(default_options, 'set-url', :origin, project.repository.path_to_repo)
-        repo.git.fetch(default_options, :origin)
-      end
-
-      def default_options(options = {})
-        { raise: true, timeout: true }.merge(options)
-      end
-
-      # Create directory for storing
-      # satellites lock files
-      def create_locks_dir
-        FileUtils.mkdir_p(lock_files_dir)
-      end
-
-      def lock_files_dir
-        @lock_files_dir ||= File.join(Gitlab.config.satellites.path, "tmp")
-      end
-    end
-  end
-end
diff --git a/lib/tasks/gitlab/check.rake b/lib/tasks/gitlab/check.rake
index badb47c6779c375140fff3bdad008db73b8f7e72..8acb6a7fd1906493df65359f56aa08f4cd4c2e60 100644
--- a/lib/tasks/gitlab/check.rake
+++ b/lib/tasks/gitlab/check.rake
@@ -25,7 +25,6 @@ namespace :gitlab do
       check_init_script_exists
       check_init_script_up_to_date
       check_projects_have_namespace
-      check_satellites_exist
       check_redis_version
       check_ruby_version
       check_git_version
@@ -238,37 +237,6 @@ namespace :gitlab do
       end
     end
 
-    def check_satellites_exist
-      print "Projects have satellites? ... "
-
-      unless Project.count > 0
-        puts "can't check, you have no projects".magenta
-        return
-      end
-      puts ""
-
-      Project.find_each(batch_size: 100) do |project|
-        print sanitized_message(project)
-
-        if project.satellite.exists?
-          puts "yes".green
-        elsif project.empty_repo?
-          puts "can't create, repository is empty".magenta
-        else
-          puts "no".red
-          try_fixing_it(
-            sudo_gitlab("bundle exec rake gitlab:satellites:create RAILS_ENV=production"),
-            "If necessary, remove the tmp/repo_satellites directory ...",
-            "... and rerun the above command"
-          )
-          for_more_information(
-            "doc/raketasks/maintenance.md "
-          )
-          fix_and_rerun
-        end
-      end
-    end
-
     def check_log_writable
       print "Log directory writable? ... "
 
@@ -339,7 +307,6 @@ namespace :gitlab do
       check_repo_base_is_not_symlink
       check_repo_base_user_and_group
       check_repo_base_permissions
-      check_satellites_permissions
       check_repos_hooks_directory_is_link
       check_gitlab_shell_self_test
 
@@ -417,29 +384,6 @@ namespace :gitlab do
       end
     end
 
-    def check_satellites_permissions
-      print "Satellites access is drwxr-x---? ... "
-
-      satellites_path = Gitlab.config.satellites.path
-      unless File.exists?(satellites_path)
-        puts "can't check because of previous errors".magenta
-        return
-      end
-
-      if File.stat(satellites_path).mode.to_s(8).ends_with?("0750")
-        puts "yes".green
-      else
-        puts "no".red
-        try_fixing_it(
-          "sudo chmod u+rwx,g=rx,o-rwx #{satellites_path}",
-        )
-        for_more_information(
-          see_installation_guide_section "GitLab"
-        )
-        fix_and_rerun
-      end
-    end
-
     def check_repo_base_user_and_group
       gitlab_shell_ssh_user = Gitlab.config.gitlab_shell.ssh_user
       gitlab_shell_owner_group = Gitlab.config.gitlab_shell.owner_group
diff --git a/lib/tasks/gitlab/enable_automerge.rake b/lib/tasks/gitlab/enable_automerge.rake
deleted file mode 100644
index 3dade9d75b8b9b0905aef24a94eb87c03fe1a58d..0000000000000000000000000000000000000000
--- a/lib/tasks/gitlab/enable_automerge.rake
+++ /dev/null
@@ -1,39 +0,0 @@
-namespace :gitlab do
-  namespace :satellites do
-    desc "GitLab | Create satellite repos"
-    task create: :environment do
-      create_satellites
-    end
-  end
-
-  def create_satellites
-    warn_user_is_not_gitlab
-
-    print "Creating satellites for ..."
-    unless Project.count > 0
-      puts "skipping, because you have no projects".magenta
-      return
-    end
-    puts ""
-
-    Project.find_each(batch_size: 100) do |project|
-      print "#{project.name_with_namespace.yellow} ... "
-
-      unless project.repo_exists?
-        puts "skipping, because the repo is empty".magenta
-        next
-      end
-
-      if project.satellite.exists?
-        puts "exists already".green
-      else
-        print "\n... "
-        if project.satellite.create
-          puts "created".green
-        else
-          puts "error".red
-        end
-      end
-    end
-  end
-end
diff --git a/spec/lib/gitlab/reference_extractor_spec.rb b/spec/lib/gitlab/reference_extractor_spec.rb
index f921dd9cc099f0cfc884a0cd195bb3303db9d3ab..088e34f050c317ab91272c69f0a6d63e5c3d4467 100644
--- a/spec/lib/gitlab/reference_extractor_spec.rb
+++ b/spec/lib/gitlab/reference_extractor_spec.rb
@@ -25,7 +25,7 @@ describe Gitlab::ReferenceExtractor do
     project.team << [@u_bar, :guest]
 
     subject.analyze(%Q{
-      Inline code: `@foo` 
+      Inline code: `@foo`
 
       Code block:
 
@@ -33,7 +33,7 @@ describe Gitlab::ReferenceExtractor do
       @bar
       ```
 
-      Quote: 
+      Quote:
 
       > @offteam
     })
@@ -49,8 +49,8 @@ describe Gitlab::ReferenceExtractor do
   end
 
   it 'accesses valid merge requests' do
-    @m0 = create(:merge_request, source_project: project, target_project: project, source_branch: 'aaa')
-    @m1 = create(:merge_request, source_project: project, target_project: project, source_branch: 'bbb')
+    @m0 = create(:merge_request, source_project: project, target_project: project, source_branch: 'markdown')
+    @m1 = create(:merge_request, source_project: project, target_project: project, source_branch: 'feature_conflict')
 
     subject.analyze("!999, !#{@m1.iid}, and !#{@m0.iid}.")
     expect(subject.merge_requests).to eq([@m1, @m0])
diff --git a/spec/lib/gitlab/satellite/action_spec.rb b/spec/lib/gitlab/satellite/action_spec.rb
deleted file mode 100644
index 0a93676edc3c69cc4a7c6d4553fce696b2f5650f..0000000000000000000000000000000000000000
--- a/spec/lib/gitlab/satellite/action_spec.rb
+++ /dev/null
@@ -1,116 +0,0 @@
-require 'spec_helper'
-
-describe 'Gitlab::Satellite::Action' do
-  let(:project) { create(:project) }
-  let(:user) { create(:user) }
-
-  describe '#prepare_satellite!' do
-    it 'should be able to fetch timeout from conf' do
-      expect(Gitlab::Satellite::Action::DEFAULT_OPTIONS[:git_timeout]).to eq(30.seconds)
-    end
-
-    it 'create a repository with a parking branch and one remote: origin' do
-      repo = project.satellite.repo
-
-      #now lets dirty it up
-
-      starting_remote_count = repo.git.list_remotes.size
-      expect(starting_remote_count).to be >= 1
-      #kind of hookey way to add a second remote
-      origin_uri = repo.git.remote({ v: true }).split(" ")[1]
-
-      repo.git.remote({ raise: true }, 'add', 'another-remote', origin_uri)
-      repo.git.branch({ raise: true }, 'a-new-branch')
-
-      expect(repo.heads.size).to be > (starting_remote_count)
-      expect(repo.git.remote().split(" ").size).to be > (starting_remote_count)
-
-      repo.git.config({}, "user.name", "#{user.name} -- foo")
-      repo.git.config({}, "user.email", "#{user.email} -- foo")
-      expect(repo.config['user.name']).to eq("#{user.name} -- foo")
-      expect(repo.config['user.email']).to eq("#{user.email} -- foo")
-
-
-      #These must happen in the context of the satellite directory...
-      satellite_action = Gitlab::Satellite::Action.new(user, project)
-      project.satellite.lock do
-        #Now clean it up, use send to get around prepare_satellite! being protected
-        satellite_action.send(:prepare_satellite!, repo)
-      end
-
-      #verify it's clean
-      heads = repo.heads.map(&:name)
-      expect(heads.size).to eq(1)
-      expect(heads.include?(Gitlab::Satellite::Satellite::PARKING_BRANCH)).to eq(true)
-      remotes = repo.git.remote().split(' ')
-      expect(remotes.size).to eq(1)
-      expect(remotes.include?('origin')).to eq(true)
-      expect(repo.config['user.name']).to eq(user.name)
-      expect(repo.config['user.email']).to eq(user.email)
-    end
-  end
-
-  describe '#in_locked_and_timed_satellite' do
-
-    it 'should make use of a lockfile' do
-      repo = project.satellite.repo
-      called = false
-
-      #set assumptions
-      FileUtils.rm_f(project.satellite.lock_file)
-
-      expect(File.exists?(project.satellite.lock_file)).to be_falsey
-
-      satellite_action = Gitlab::Satellite::Action.new(user, project)
-      satellite_action.send(:in_locked_and_timed_satellite) do |sat_repo|
-        expect(repo).to eq(sat_repo)
-        expect(File.exists? project.satellite.lock_file).to be_truthy
-        called = true
-      end
-
-      expect(called).to be_truthy
-
-    end
-
-    it 'should be able to use the satellite after locking' do
-      repo = project.satellite.repo
-      called = false
-
-      # Set base assumptions
-      if File.exists? project.satellite.lock_file
-        expect(FileLockStatusChecker.new(project.satellite.lock_file).flocked?).to be_falsey
-      end
-
-      satellite_action = Gitlab::Satellite::Action.new(user, project)
-      satellite_action.send(:in_locked_and_timed_satellite) do |sat_repo|
-        called = true
-        expect(repo).to eq(sat_repo)
-        expect(File.exists? project.satellite.lock_file).to be_truthy
-        expect(FileLockStatusChecker.new(project.satellite.lock_file).flocked?).to be_truthy
-      end
-
-      expect(called).to be_truthy
-      expect(FileLockStatusChecker.new(project.satellite.lock_file).flocked?).to be_falsey
-
-    end
-
-    class FileLockStatusChecker < File
-      def flocked?(&block)
-        status = flock LOCK_EX|LOCK_NB
-        case status
-        when false
-          return true
-        when 0
-          begin
-            block ? block.call : false
-          ensure
-            flock LOCK_UN
-          end
-        else
-          raise SystemCallError, status
-        end
-      end
-    end
-
-  end
-end
diff --git a/spec/lib/gitlab/satellite/merge_action_spec.rb b/spec/lib/gitlab/satellite/merge_action_spec.rb
deleted file mode 100644
index 9b1c9a34e294198cca4ccd3164e5255e71ad6874..0000000000000000000000000000000000000000
--- a/spec/lib/gitlab/satellite/merge_action_spec.rb
+++ /dev/null
@@ -1,104 +0,0 @@
-require 'spec_helper'
-
-describe 'Gitlab::Satellite::MergeAction' do
-  include RepoHelpers
-
-  let(:project) { create(:project, namespace: create(:group)) }
-  let(:fork_project) { create(:project, namespace: create(:group), forked_from_project: project) }
-  let(:merge_request) { create(:merge_request, source_project: project, target_project: project) }
-  let(:merge_request_fork) { create(:merge_request, source_project: fork_project, target_project: project) }
-
-  let(:merge_request_with_conflict) { create(:merge_request, :conflict, source_project: project, target_project: project) }
-  let(:merge_request_fork_with_conflict) { create(:merge_request, :conflict, source_project: project, target_project: project) }
-
-  describe '#commits_between' do
-    def verify_commits(commits, first_commit_sha, last_commit_sha)
-      commits.each { |commit| expect(commit.class).to eq(Gitlab::Git::Commit) }
-      expect(commits.first.id).to eq(first_commit_sha)
-      expect(commits.last.id).to eq(last_commit_sha)
-    end
-
-    context 'on fork' do
-      it 'should get proper commits between' do
-        commits = Gitlab::Satellite::MergeAction.new(merge_request_fork.author, merge_request_fork).commits_between
-        verify_commits(commits, sample_compare.commits.first, sample_compare.commits.last)
-      end
-    end
-
-    context 'between branches' do
-      it 'should raise exception -- not expected to be used by non forks' do
-        expect { Gitlab::Satellite::MergeAction.new(merge_request.author, merge_request).commits_between }.to raise_error(RuntimeError)
-      end
-    end
-  end
-
-  describe '#format_patch' do
-    def verify_content(patch)
-      sample_compare.commits.each do |commit|
-        expect(patch.include?(commit)).to be_truthy
-      end
-    end
-
-    context 'on fork' do
-      it 'should build a format patch' do
-        patch = Gitlab::Satellite::MergeAction.new(merge_request_fork.author, merge_request_fork).format_patch
-        verify_content(patch)
-      end
-    end
-
-    context 'between branches' do
-      it 'should build a format patch' do
-        patch = Gitlab::Satellite::MergeAction.new(merge_request_fork.author, merge_request).format_patch
-        verify_content(patch)
-      end
-    end
-  end
-
-  describe '#diffs_between_satellite tested against diff_in_satellite' do
-    def is_a_matching_diff(diff, diffs)
-      diff_count = diff.scan('diff --git').size
-      expect(diff_count).to be >= 1
-      expect(diffs.size).to eq(diff_count)
-      diffs.each do |a_diff|
-        expect(a_diff.class).to eq(Gitlab::Git::Diff)
-        expect(diff.include? a_diff.diff).to be_truthy
-      end
-    end
-
-    context 'on fork' do
-      it 'should get proper diffs' do
-        diffs = Gitlab::Satellite::MergeAction.new(merge_request_fork.author, merge_request_fork).diffs_between_satellite
-        diff = Gitlab::Satellite::MergeAction.new(merge_request.author, merge_request_fork).diff_in_satellite
-        is_a_matching_diff(diff, diffs)
-      end
-    end
-
-    context 'between branches' do
-      it 'should get proper diffs' do
-        expect{ Gitlab::Satellite::MergeAction.new(merge_request.author, merge_request).diffs_between_satellite }.to raise_error(RuntimeError)
-      end
-    end
-  end
-
-  describe '#can_be_merged?' do
-    context 'on fork' do
-      it do
-        expect(Gitlab::Satellite::MergeAction.new(merge_request_fork.author, merge_request_fork).can_be_merged?).to be_truthy
-      end
-
-      it do
-        expect(Gitlab::Satellite::MergeAction.new(merge_request_fork_with_conflict.author, merge_request_fork_with_conflict).can_be_merged?).to be_falsey
-      end
-    end
-
-    context 'between branches' do
-      it do
-        expect(Gitlab::Satellite::MergeAction.new(merge_request.author, merge_request).can_be_merged?).to be_truthy
-      end
-
-      it do
-        expect(Gitlab::Satellite::MergeAction.new(merge_request_with_conflict.author, merge_request_with_conflict).can_be_merged?).to be_falsey
-      end
-    end
-  end
-end
diff --git a/spec/models/merge_request_spec.rb b/spec/models/merge_request_spec.rb
index 76f6d8c54c4ba2048ab6ed69d7f5234544a1032b..b91687bc09fc9a18f3e565b181beb30420d9ba54 100644
--- a/spec/models/merge_request_spec.rb
+++ b/spec/models/merge_request_spec.rb
@@ -165,7 +165,7 @@ describe MergeRequest do
   end
 
   it_behaves_like 'an editable mentionable' do
-    subject { create(:merge_request, source_project: project) }
+    subject { create(:merge_request) }
 
     let(:backref_text) { "merge request #{subject.to_reference}" }
     let(:set_mentionable_text) { ->(txt){ subject.description = txt } }
diff --git a/spec/models/project_services/slack_service_spec.rb b/spec/models/project_services/slack_service_spec.rb
index 69466b11f096dbd8cb53183c0e2e14db8fd253eb..97b60e19e407971a02a182166d24588781254964 100644
--- a/spec/models/project_services/slack_service_spec.rb
+++ b/spec/models/project_services/slack_service_spec.rb
@@ -67,7 +67,7 @@ describe SlackService do
       opts = {
         title: 'Awesome merge_request',
         description: 'please fix',
-        source_branch: 'stable',
+        source_branch: 'feature',
         target_branch: 'master'
       }
       merge_service = MergeRequests::CreateService.new(project,
diff --git a/spec/models/project_spec.rb b/spec/models/project_spec.rb
index 5d40754d59dda7c36b76aa0796fc04fd29aa802b..2fcbd5ae108ae3911b27c314f198d93431953c68 100644
--- a/spec/models/project_spec.rb
+++ b/spec/models/project_spec.rb
@@ -91,7 +91,6 @@ describe Project do
   describe 'Respond to' do
     it { is_expected.to respond_to(:url_to_repo) }
     it { is_expected.to respond_to(:repo_exists?) }
-    it { is_expected.to respond_to(:satellite) }
     it { is_expected.to respond_to(:update_merge_requests) }
     it { is_expected.to respond_to(:execute_hooks) }
     it { is_expected.to respond_to(:name_with_namespace) }
diff --git a/spec/models/repository_spec.rb b/spec/models/repository_spec.rb
index 0927cde61a6232bd61eb8aa882f576548b9430c8..d96244f23e0e3ddb876ceb7a666ad867d6314faa 100644
--- a/spec/models/repository_spec.rb
+++ b/spec/models/repository_spec.rb
@@ -34,6 +34,20 @@ describe Repository do
     end
   end
 
+  describe :can_be_merged? do
+    context 'mergeable branches' do
+      subject { repository.can_be_merged?('0b4bc9a49b562e85de7cc9e834518ea6828729b9', 'master') }
+
+      it { is_expected.to be_truthy }
+    end
+
+    context 'non-mergeable branches' do
+      subject { repository.can_be_merged?('bb5206fee213d983da88c47f9cf4cc6caf9c66dc', 'feature') }
+
+      it { is_expected.to be_falsey }
+    end
+  end
+
   describe "search_files" do
     let(:results) { repository.search_files('feature', 'master') }
     subject { results }
diff --git a/spec/requests/api/files_spec.rb b/spec/requests/api/files_spec.rb
index 78f2cb56b025667dccff6b2d499d156a0064f03c..042e6352567101f76dca133a1da1c4b5fcda0b97 100644
--- a/spec/requests/api/files_spec.rb
+++ b/spec/requests/api/files_spec.rb
@@ -49,8 +49,6 @@ describe API::API, api: true  do
     end
 
     it "should create a new file in project repo" do
-      expect_any_instance_of(Gitlab::Satellite::NewFileAction).to receive(:commit!).and_return(true)
-
       post api("/projects/#{project.id}/repository/files", user), valid_params
       expect(response.status).to eq(201)
       expect(json_response['file_path']).to eq('newfile.rb')
@@ -61,8 +59,9 @@ describe API::API, api: true  do
       expect(response.status).to eq(400)
     end
 
-    it "should return a 400 if satellite fails to create file" do
-      expect_any_instance_of(Gitlab::Satellite::NewFileAction).to receive(:commit!).and_return(false)
+    it "should return a 400 if editor fails to create file" do
+      allow_any_instance_of(Repository).to receive(:commit_file).
+        and_return(false)
 
       post api("/projects/#{project.id}/repository/files", user), valid_params
       expect(response.status).to eq(400)
@@ -80,8 +79,6 @@ describe API::API, api: true  do
     end
 
     it "should update existing file in project repo" do
-      expect_any_instance_of(Gitlab::Satellite::EditFileAction).to receive(:commit!).and_return(true)
-
       put api("/projects/#{project.id}/repository/files", user), valid_params
       expect(response.status).to eq(200)
       expect(json_response['file_path']).to eq(file_path)
@@ -91,32 +88,6 @@ describe API::API, api: true  do
       put api("/projects/#{project.id}/repository/files", user)
       expect(response.status).to eq(400)
     end
-
-    it 'should return a 400 if the checkout fails' do
-      expect_any_instance_of(Gitlab::Satellite::EditFileAction).to receive(:commit!).and_raise(Gitlab::Satellite::CheckoutFailed)
-
-      put api("/projects/#{project.id}/repository/files", user), valid_params
-      expect(response.status).to eq(400)
-
-      ref = valid_params[:branch_name]
-      expect(response.body).to match("ref '#{ref}' could not be checked out")
-    end
-
-    it 'should return a 409 if the file was not modified' do
-      expect_any_instance_of(Gitlab::Satellite::EditFileAction).to receive(:commit!).and_raise(Gitlab::Satellite::CommitFailed)
-
-      put api("/projects/#{project.id}/repository/files", user), valid_params
-      expect(response.status).to eq(409)
-      expect(response.body).to match("Maybe there was nothing to commit?")
-    end
-
-    it 'should return a 409 if the push fails' do
-      expect_any_instance_of(Gitlab::Satellite::EditFileAction).to receive(:commit!).and_raise(Gitlab::Satellite::PushFailed)
-
-      put api("/projects/#{project.id}/repository/files", user), valid_params
-      expect(response.status).to eq(409)
-      expect(response.body).to match("Maybe the file was changed by another process?")
-    end
   end
 
   describe "DELETE /projects/:id/repository/files" do
@@ -129,7 +100,6 @@ describe API::API, api: true  do
     end
 
     it "should delete existing file in project repo" do
-      expect_any_instance_of(Gitlab::Satellite::DeleteFileAction).to receive(:commit!).and_return(true)
       delete api("/projects/#{project.id}/repository/files", user), valid_params
       expect(response.status).to eq(200)
       expect(json_response['file_path']).to eq(file_path)
@@ -140,8 +110,8 @@ describe API::API, api: true  do
       expect(response.status).to eq(400)
     end
 
-    it "should return a 400 if satellite fails to create file" do
-      expect_any_instance_of(Gitlab::Satellite::DeleteFileAction).to receive(:commit!).and_return(false)
+    it "should return a 400 if fails to create file" do
+      allow_any_instance_of(Repository).to receive(:remove_file).and_return(false)
 
       delete api("/projects/#{project.id}/repository/files", user), valid_params
       expect(response.status).to eq(400)
diff --git a/spec/requests/api/merge_requests_spec.rb b/spec/requests/api/merge_requests_spec.rb
index 29db035b2de9b8847d53a59b060049e66d23a2ac..942768fa25462387c6a01175710623ac62e7e762 100644
--- a/spec/requests/api/merge_requests_spec.rb
+++ b/spec/requests/api/merge_requests_spec.rb
@@ -148,7 +148,7 @@ describe API::API, api: true  do
       it "should return merge_request" do
         post api("/projects/#{project.id}/merge_requests", user),
              title: 'Test merge_request',
-             source_branch: 'stable',
+             source_branch: 'feature_conflict',
              target_branch: 'master',
              author: user,
              labels: 'label, label2'
@@ -171,20 +171,20 @@ describe API::API, api: true  do
 
       it "should return 400 when target_branch is missing" do
         post api("/projects/#{project.id}/merge_requests", user),
-        title: "Test merge_request", source_branch: "stable", author: user
+        title: "Test merge_request", source_branch: "markdown", author: user
         expect(response.status).to eq(400)
       end
 
       it "should return 400 when title is missing" do
         post api("/projects/#{project.id}/merge_requests", user),
-        target_branch: 'master', source_branch: 'stable'
+        target_branch: 'master', source_branch: 'markdown'
         expect(response.status).to eq(400)
       end
 
       it 'should return 400 on invalid label names' do
         post api("/projects/#{project.id}/merge_requests", user),
              title: 'Test merge_request',
-             source_branch: 'stable',
+             source_branch: 'markdown',
              target_branch: 'master',
              author: user,
              labels: 'label, ?'
@@ -198,7 +198,7 @@ describe API::API, api: true  do
         before do
           post api("/projects/#{project.id}/merge_requests", user),
                title: 'Test merge_request',
-               source_branch: 'stable',
+               source_branch: 'feature_conflict',
                target_branch: 'master',
                author: user
           @mr = MergeRequest.all.last
@@ -208,7 +208,7 @@ describe API::API, api: true  do
           expect do
             post api("/projects/#{project.id}/merge_requests", user),
                  title: 'New test merge_request',
-                 source_branch: 'stable',
+                 source_branch: 'feature_conflict',
                  target_branch: 'master',
                  author: user
           end.to change { MergeRequest.count }.by(0)
@@ -228,7 +228,8 @@ describe API::API, api: true  do
 
       it "should return merge_request" do
         post api("/projects/#{fork_project.id}/merge_requests", user2),
-        title: 'Test merge_request', source_branch: "stable", target_branch: "master", author: user2, target_project_id: project.id, description: 'Test description for Test merge_request'
+          title: 'Test merge_request', source_branch: "feature_conflict", target_branch: "master",
+          author: user2, target_project_id: project.id, description: 'Test description for Test merge_request'
         expect(response.status).to eq(201)
         expect(json_response['title']).to eq('Test merge_request')
         expect(json_response['description']).to eq('Test description for Test merge_request')
@@ -258,7 +259,7 @@ describe API::API, api: true  do
 
       it "should return 400 when title is missing" do
         post api("/projects/#{fork_project.id}/merge_requests", user2),
-        target_branch: 'master', source_branch: 'stable', author: user2, target_project_id: project.id
+        target_branch: 'master', source_branch: 'markdown', author: user2, target_project_id: project.id
         expect(response.status).to eq(400)
       end
 
@@ -267,7 +268,7 @@ describe API::API, api: true  do
           post api("/projects/#{project.id}/merge_requests", user),
                title: 'Test merge_request',
                target_branch: 'master',
-               source_branch: 'stable',
+               source_branch: 'markdown',
                author: user,
                target_project_id: fork_project.id
           expect(response.status).to eq(422)
@@ -277,7 +278,7 @@ describe API::API, api: true  do
           post api("/projects/#{fork_project.id}/merge_requests", user2),
                title: 'Test merge_request',
                target_branch: 'master',
-               source_branch: 'stable',
+               source_branch: 'markdown',
                author: user2,
                target_project_id: unrelated_project.id
           expect(response.status).to eq(422)
@@ -286,7 +287,7 @@ describe API::API, api: true  do
 
       it "should return 201 when target_branch is specified and for the same project" do
         post api("/projects/#{fork_project.id}/merge_requests", user2),
-        title: 'Test merge_request', target_branch: 'master', source_branch: 'stable', author: user2, target_project_id: fork_project.id
+        title: 'Test merge_request', target_branch: 'master', source_branch: 'markdown', author: user2, target_project_id: fork_project.id
         expect(response.status).to eq(201)
       end
     end
@@ -302,9 +303,6 @@ describe API::API, api: true  do
 
   describe "PUT /projects/:id/merge_request/:merge_request_id/merge" do
     it "should return merge_request in case of success" do
-      allow_any_instance_of(MergeRequest).
-        to receive_messages(can_be_merged?: true, automerge!: true)
-
       put api("/projects/#{project.id}/merge_request/#{merge_request.id}/merge", user)
 
       expect(response.status).to eq(200)
diff --git a/spec/routing/project_routing_spec.rb b/spec/routing/project_routing_spec.rb
index 0040718d9be4d0293e818e14b722d11d214e7710..82f62a8709cad58e7334cd5e79122a927063e1cd 100644
--- a/spec/routing/project_routing_spec.rb
+++ b/spec/routing/project_routing_spec.rb
@@ -210,8 +210,8 @@ end
 
 #               diffs_namespace_project_merge_request GET      /:namespace_id/:project_id/merge_requests/:id/diffs(.:format)               projects/merge_requests#diffs
 #             commits_namespace_project_merge_request GET      /:namespace_id/:project_id/merge_requests/:id/commits(.:format)             projects/merge_requests#commits
-#           automerge_namespace_project_merge_request POST     /:namespace_id/:project_id/merge_requests/:id/automerge(.:format)           projects/merge_requests#automerge
-#     automerge_check_namespace_project_merge_request GET      /:namespace_id/:project_id/merge_requests/:id/automerge_check(.:format)     projects/merge_requests#automerge_check
+#           merge_namespace_project_merge_request POST     /:namespace_id/:project_id/merge_requests/:id/merge(.:format)           projects/merge_requests#merge
+#     merge_check_namespace_project_merge_request GET      /:namespace_id/:project_id/merge_requests/:id/merge_check(.:format)     projects/merge_requests#merge_check
 #           ci_status_namespace_project_merge_request GET      /:namespace_id/:project_id/merge_requests/:id/ci_status(.:format)           projects/merge_requests#ci_status
 # toggle_subscription_namespace_project_merge_request POST     /:namespace_id/:project_id/merge_requests/:id/toggle_subscription(.:format) projects/merge_requests#toggle_subscription
 #        branch_from_namespace_project_merge_requests GET      /:namespace_id/:project_id/merge_requests/branch_from(.:format)             projects/merge_requests#branch_from
@@ -233,15 +233,15 @@ describe Projects::MergeRequestsController, 'routing' do
     expect(get('/gitlab/gitlabhq/merge_requests/1/commits')).to route_to('projects/merge_requests#commits', namespace_id: 'gitlab', project_id: 'gitlabhq', id: '1')
   end
 
-  it 'to #automerge' do
-    expect(post('/gitlab/gitlabhq/merge_requests/1/automerge')).to route_to(
-      'projects/merge_requests#automerge',
+  it 'to #merge' do
+    expect(post('/gitlab/gitlabhq/merge_requests/1/merge')).to route_to(
+      'projects/merge_requests#merge',
       namespace_id: 'gitlab', project_id: 'gitlabhq', id: '1'
     )
   end
 
-  it 'to #automerge_check' do
-    expect(get('/gitlab/gitlabhq/merge_requests/1/automerge_check')).to route_to('projects/merge_requests#automerge_check', namespace_id: 'gitlab', project_id: 'gitlabhq', id: '1')
+  it 'to #merge_check' do
+    expect(get('/gitlab/gitlabhq/merge_requests/1/merge_check')).to route_to('projects/merge_requests#merge_check', namespace_id: 'gitlab', project_id: 'gitlabhq', id: '1')
   end
 
   it 'to #branch_from' do
diff --git a/spec/services/merge_requests/create_service_spec.rb b/spec/services/merge_requests/create_service_spec.rb
index d9bfdf643080752f3ede55ae554b7f590ba8d3c3..cc64d69361e8a57731a528e0bee56b6c79d89a1a 100644
--- a/spec/services/merge_requests/create_service_spec.rb
+++ b/spec/services/merge_requests/create_service_spec.rb
@@ -10,7 +10,7 @@ describe MergeRequests::CreateService do
         {
           title: 'Awesome merge_request',
           description: 'please fix',
-          source_branch: 'stable',
+          source_branch: 'feature',
           target_branch: 'master'
         }
       end
diff --git a/spec/services/merge_requests/merge_service_spec.rb b/spec/services/merge_requests/merge_service_spec.rb
index 0a25fb12f4eaa34e964f97349fa7cb5d9ff197f3..7b564d34d7b40d2b9c3812d6d200ea44775210e2 100644
--- a/spec/services/merge_requests/merge_service_spec.rb
+++ b/spec/services/merge_requests/merge_service_spec.rb
@@ -24,11 +24,6 @@ describe MergeRequests::MergeService do
       it { expect(merge_request).to be_valid }
       it { expect(merge_request).to be_merged }
 
-      it 'should execute hooks with merge action' do
-        expect(service).to have_received(:execute_hooks).
-                               with(merge_request, 'merge')
-      end
-
       it 'should send email to user2 about merge of new merge_request' do
         email = ActionMailer::Base.deliveries.last
         expect(email.to.first).to eq(user2.email)
diff --git a/spec/support/mentionable_shared_examples.rb b/spec/support/mentionable_shared_examples.rb
index f0717e6178198736abbd34558de2ad14c09367a8..e3de0afb44825a6b84a7bb9723e22754dfb7538b 100644
--- a/spec/support/mentionable_shared_examples.rb
+++ b/spec/support/mentionable_shared_examples.rb
@@ -9,7 +9,7 @@ def common_mentionable_setup
   let(:author)  { subject.author }
 
   let(:mentioned_issue)  { create(:issue, project: project) }
-  let(:mentioned_mr)     { create(:merge_request, :simple, source_project: project) }
+  let!(:mentioned_mr)     { create(:merge_request, :simple, source_project: project) }
   let(:mentioned_commit) { project.commit }
 
   let(:ext_proj)   { create(:project, :public) }