Relocate repositories locally and remote

This commit introduces relocating a repository as a followup after
a project's identifier has been renamed.

app/controllers/projects_controller.rb

@@ -171,7 +171,7 @@ class ProjectsController < ApplicationController
           redirect_to action: 'settings', id: @project
         end
       end
-      OpenProject::Notifications.send('project_updated', project: @project)
+      OpenProject::Notifications.send('project_renamed', project: @project)
     else
       respond_to do |format|
         format.html do

app/services/scm/create_managed_repository_service.rb

@@ -46,7 +46,7 @@ class Scm::CreateManagedRepositoryService < Scm::BaseRepositoryService
       # creating and deleting repositories, which provides transactional DB access
       # as well as filesystem access.
       if repository.class.manages_remote?
-        Scm::CreateRemoteRepositoryJob.new(repository).perform
+        Scm::CreateRemoteRepositoryJob.new(repository, perform_now: true).perform
       else
         Scm::CreateLocalRepositoryJob.new(repository).perform
       end

app/services/scm/delete_managed_repository_service.rb

@@ -38,7 +38,7 @@ class Scm::DeleteManagedRepositoryService < Scm::BaseRepositoryService
     return false unless repository.managed?
 
     if repository.class.manages_remote?
-      Scm::DeleteRemoteRepositoryJob.new(repository).perform
+      Scm::DeleteRemoteRepositoryJob.new(repository, perform_now: true).perform
       true
     else
       delete_local_repository

app/workers/scm/relocate_repository_job.rb

@@ -0,0 +1,60 @@
+#-- encoding: UTF-8
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2012-2015 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
+# Copyright (C) 2006-2013 Jean-Philippe Lang
+# Copyright (C) 2010-2013 the ChiliProject Team
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.rdoc for more details.
+#++
+
+##
+# Provides an asynchronous job to relocate a managed repository on the local or remote system
+class Scm::RelocateRepositoryJob < Scm::RemoteRepositoryJob
+  def perform
+    if repository.class.manages_remote?
+      relocate_remote
+    else
+      relocate_on_disk
+    end
+  end
+
+  private
+
+  ##
+  # POST to the remote managed repository a request to relocate the repository
+  def relocate_remote
+    send(repository_request.merge(
+           action: :relocate,
+           old_repository: repository.root_url))
+  end
+
+  ##
+  # Tries to relocate the repository on disk.
+  # As we're performing this in a job and currently have no explicit means
+  # of error handling in this context, there's not much to do here in case of failure.
+  def relocate_on_disk
+    FileUtils.mv repository.root_url, repository.managed_repository_path
+    repository.update_columns(root_url: repository.managed_repository_path,
+                              url: repository.managed_repository_url)
+  end
+end

app/workers/scm/remote_repository_job.rb

@@ -37,11 +37,20 @@
 class Scm::RemoteRepositoryJob
   include OpenProject::BeforeDelayedJob
 
-  def initialize(repository)
-    # TODO currently uses the full repository object,
-    # as the Job is performed synchronously.
-    # Change this to serialize the ID once its turned to process asynchronously.
-    @repository = repository
+  attr_reader :repository
+
+
+  ##
+  # Initialize the job, optionally saving the whole repository object
+  # (use only when not serializing the job.)
+  # As we're using the jobs majorly synchronously for the time being, it saves a db trip.
+  # When we have error handling for asynchronous tasks, refactor this.
+  def initialize(repository, perform_now: false)
+    if perform_now
+      @repository = repository
+    else
+      @repository_id = repository.id
+    end
   end
 
   protected
@@ -49,7 +58,7 @@ class Scm::RemoteRepositoryJob
   ##
   # Submits the request to the configured managed remote as JSON.
   def send(request)
-    uri = @repository.class.managed_remote
+    uri = repository.class.managed_remote
     req = ::Net::HTTP::Post.new(uri, 'Content-Type' => 'application/json')
     req.body = request.to_json
 
@@ -60,11 +69,11 @@ class Scm::RemoteRepositoryJob
     unless response.is_a? ::Net::HTTPSuccess
       info = try_to_parse_response(response.body)
       raise OpenProject::Scm::Exceptions::ScmError.new(
-        I18n.t('repositories.errors.remote_call_failed',
-               code: response.code,
-               message: info['message']
-           )
-      )
+              I18n.t('repositories.errors.remote_call_failed',
+                     code: response.code,
+                     message: info['message']
+              )
+            )
     end
   end
 
@@ -72,18 +81,18 @@ class Scm::RemoteRepositoryJob
     JSON.parse(body)
   rescue JSON::JSONError => e
     raise OpenProject::Scm::Exceptions::ScmError.new(
-      I18n.t('repositories.errors.remote_invalid_response')
-    )
+            I18n.t('repositories.errors.remote_invalid_response')
+          )
   end
 
   def repository_request
-    project = @repository.project
+    project = repository.project
 
     {
-      token: @repository.scm.config[:access_token],
-      identifier: @repository.repository_identifier,
-      vendor: @repository.vendor,
-      scm_type: @repository.scm_type,
+      token: repository.scm.config[:access_token],
+      identifier: repository.repository_identifier,
+      vendor: repository.vendor,
+      scm_type: repository.scm_type,
       project: {
         id: project.id,
         name: project.name,
@@ -91,4 +100,8 @@ class Scm::RemoteRepositoryJob
       }
     }
   end
+
+  def repository
+    @repository ||= Repository.find(@repository_id)
+  end
 end

config/configuration.yml.example

@@ -226,10 +226,11 @@ default:
   #
   #   When entering a URL, OpenProject will POST to this resource when repositories are created
   #   using the following JSON-encoded payload:
-  #     - action: The action to perform (create, delete)
+  #     - action: The action to perform (create, delete, relocate)
   #     - identifier: The repository identifier name
   #     - vendor: The SCM vendor of the repository to create
   #     - project: identifier, name and ID of the associated project
+  #     - old_repository: The known path to the old repository (used during relocate, only)
   #
   #   NOTE: Disabling :managed repositories using disabled_types takes precedence over this setting.
   # mode:

doc/operation_guides/manual/repository-integration.md

@@ -37,6 +37,7 @@ The following is an excerpt of the configuration and contains all required infor
 	#     - identifier: The repository identifier name
 	#     - vendor: The SCM vendor of the repository to create
 	#     - project: identifier, name and ID of the associated project
+	#     - old_repository: The known path to the old repository (used during relocate, only)
 	#
 	#   NOTE: Disabling :managed repositories using disabled_types takes precedence over this setting.
 	#
@@ -96,7 +97,10 @@ Upon creating and deleting repositories in the frontend, OpenProject will POST t
 
 Our main use-case for this feature is to reduce the complexity of permission issues around Subversion mainly in packager, for which a simple Apache wrapper script is used in `extra/Apache/OpenProjectRepoman.pm`.
 This functionality is very limited, but may be extended when other use cases arise.
-	If you're interested in setting up the integration manually outside the context of packager, the following excerpt will help you:
+It supports notifications for creating repositories (action `create`), moving repositories (action `relocate`, when a project's identifier has changed), and deleting repositories (action `delete`).
+
+If you're interested in setting up the integration manually outside the context of packager, the following excerpt will help you:
+
 	
 	PerlSwitches -I/srv/www/perl-lib -T
 	PerlLoadModule Apache::OpenProjectRepoman

lib/open_project/scm/manageable_repository.rb

@@ -32,6 +32,16 @@ module OpenProject
     module ManageableRepository
       def self.included(base)
         base.extend(ClassMethods)
+
+        ##
+        # Take note when projects are renamed and check for associated managed repositories
+        OpenProject::Notifications.subscribe('project_renamed') do |payload|
+          repository = payload[:project].repository
+
+          if repository && repository.managed?
+            Delayed::Job.enqueue ::Scm::RelocateRepositoryJob.new(repository)
+          end
+        end
       end
 
       module ClassMethods

spec/models/repository/git_spec.rb

@@ -388,6 +388,9 @@ describe Repository::Git, type: :model do
       it_behaves_like 'is a countable repository' do
         let(:repository) { instance }
       end
+
     end
   end
+
+  it_behaves_like 'repository can be relocated', :git
 end

spec/models/repository/subversion_spec.rb

@@ -315,4 +315,6 @@ describe Repository::Subversion, type: :model do
       end
     end
   end
+
+  it_behaves_like 'repository can be relocated', :subversion
 end

spec/services/scm/delete_managed_repository_service_spec.rb

@@ -81,13 +81,6 @@ describe Scm::DeleteManagedRepositoryService do
       repo
     }
 
-    before do
-      allow_any_instance_of(Scm::DeleteLocalRepositoryJob)
-        .to receive(:repository).and_return(repository)
-      allow_any_instance_of(Scm::DeleteRemoteRepositoryJob)
-        .to receive(:repository).and_return(repository)
-    end
-
     it 'deletes the repository' do
       expect(File.directory?(repository.root_url)).to be true
       expect(service.call).to be true

spec/support/scm/relocate_repository.rb

@@ -0,0 +1,72 @@
+shared_examples_for 'repository can be relocated' do |vendor|
+  let(:job) { ::Scm::RelocateRepositoryJob.new repository }
+  let(:project) { FactoryGirl.build :project }
+  let(:repository) {
+    repo = FactoryGirl.build("repository_#{vendor}".to_sym,
+                             project: project,
+                             scm_type: :managed)
+
+    repo.configure(:managed, nil)
+    repo.save!
+
+    repo
+  }
+
+  before do
+    allow(::Scm::RelocateRepositoryJob).to receive(:new).and_return(job)
+    allow(Repository).to receive(:find).and_return(repository)
+  end
+
+  context 'with managed local config' do
+    include_context 'with tmpdir'
+    let(:config) { { manages: File.join(tmpdir, 'myrepos') } }
+
+    it 'relocates when project identifier is updated' do
+      current_path = repository.root_url
+      expect(repository.root_url).to eq(repository.managed_repository_path)
+      expect(Dir.exists?(repository.managed_repository_path)).to be true
+
+      # Rename the project
+      project.update_attributes!(identifier: 'somenewidentifier')
+      repository.reload
+
+      job.perform
+
+      # Confirm that all paths are updated
+      expect(current_path).not_to eq(repository.managed_repository_path)
+      expect(current_path).not_to eq(repository.root_url)
+      expect(repository.url).to eq(repository.managed_repository_url)
+
+      expect(Dir.exists?(repository.managed_repository_path)).to be true
+    end
+  end
+
+  context 'with managed remote config', webmock: true do
+    let(:url) { 'http://myreposerver.example.com/api/' }
+    let(:config) { { manages: url } }
+
+    let(:repository) {
+      stub_request(:post, url).to_return(status: 200)
+      FactoryGirl.create("repository_#{vendor}".to_sym,
+                         project: project,
+                         scm_type: :managed)
+    }
+
+    before do
+      stub_request(:post, url).to_return(status: 200)
+    end
+
+    it 'sends a relocation request when project identifier is updated' do
+      current_path = repository.root_url
+
+      # Rename the project
+      project.identifier = 'somenewidentifier'
+      job.perform
+
+      expect(WebMock)
+        .to have_requested(:post, url)
+        .with(body: hash_including(old_repository: current_path,
+                                   action: 'relocate'))
+    end
+  end
+end