WIP - refactored migration

CHANGELOG

@@ -17,6 +17,7 @@ v 8.5.0 (unreleased)
   - Update the ExternalIssue regex pattern (Blake Hitchcock)
   - Deprecate API "merge_request/:merge_request_id/comments". Use "merge_requests/:merge_request_id/notes" instead
   - Deprecate API "merge_request/:merge_request_id/...". Use "merge_requests/:merge_request_id/..." instead
+  - Prevent parse error when name of project ends with .atom and prevent path issues
 
 v 8.4.2
   - Bump required gitlab-workhorse version to bring in a fix for missing

db/migrate/20160129135155_remove_dot_atom_path_ending_of_projects.rb

 class RemoveDotAtomPathEndingOfProjects < ActiveRecord::Migration
+  include Gitlab::ShellAdapter
 
   class ProjectPath
-    def initilize(old_path)
+    attr_reader :old_path, :id
+
+    def initialize(old_path, id)
       @old_path = old_path
+      @id = id
     end
 
     def clean_path
@@ -10,7 +14,7 @@ class RemoveDotAtomPathEndingOfProjects < ActiveRecord::Migration
     end
   end
 
-  module PathCleaner
+  class PathCleaner
     def initialize(path)
       @path = path
     end
@@ -30,7 +34,7 @@ class RemoveDotAtomPathEndingOfProjects < ActiveRecord::Migration
     end
 
     def cleaned_path
-      @_cleaned_path ||= path.gsub(/\.atom\z/, '-atom')
+      @_cleaned_path ||= @path.gsub(/\.atom\z/, '-atom')
     end
 
     def path_exists?(path)
@@ -38,17 +42,48 @@ class RemoveDotAtomPathEndingOfProjects < ActiveRecord::Migration
     end
   end
 
+  def projects_with_dot_atom
+    select_all("SELECT id, path FROM projects WHERE lower(path) LIKE '%.atom'")
+  end
+
   def up
     projects_with_dot_atom.each do |project|
-      remove_dot(project)
+      binding.pry
+      project_path = ProjectPath.new(project['path'], project['id'])
+      clean_path(project_path) if move_path(project_path)
     end
   end
 
   private
 
-  def remove_dot(project)
-    #TODO
+  def clean_path(project_path)
+    execute "UPDATE projects SET path = '#{project_path.clean_path}' WHERE id = #{project.id}"
   end
 
-
+  def move_path(project_path)
+    # Based on RemovePeriodsAtEndsOfUsernames
+    # Don't attempt to move if original path only contains periods.
+    return if project_path.clean_path =~ /\A\.+\z/
+    if gitlab_shell.mv_namespace(project_path.old_path, project_path.clean_path)
+      # If repositories moved successfully we need to remove old satellites
+      # and 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(project_path.old_path)
+          # We cannot send update instructions since models and mailers
+          # can't safely be used from migrations as they may be written for
+          # later versions of the database.
+          # send_update_instructions
+      rescue
+        # Returning false does not rollback after_* transaction but gives
+        # us information about failing some of tasks
+        false
+      end
+    else
+      # if we cannot move namespace directory we should avoid
+      # db changes in order to prevent out of sync between db and fs
+      false
+    end
+  end
 end