Commit 4b19c1ac authored by Dmitriy Zaporozhets's avatar Dmitriy Zaporozhets Committed by Douglas Barbosa Alexandre

Merge branch 'dz-rename-reserved-project-names' into 'master'

Rename projects with reserved path names

See merge request !8234
parent 8fcb9559
......@@ -921,7 +921,7 @@ class Project < ActiveRecord::Base
Rails.logger.error "Project #{old_path_with_namespace} cannot be renamed because container registry tags are present"
# we currently doesn't support renaming repository if it contains tags in container registry
raise Exception.new('Project cannot be renamed, because tags are present in its container registry')
raise StandardError.new('Project cannot be renamed, because tags are present in its container registry')
end
if gitlab_shell.mv_repository(repository_storage_path, old_path_with_namespace, new_path_with_namespace)
......@@ -948,7 +948,7 @@ class Project < ActiveRecord::Base
# if we cannot move namespace directory we should rollback
# db changes in order to prevent out of sync between db and fs
raise Exception.new('repository cannot be renamed')
raise StandardError.new('repository cannot be renamed')
end
Gitlab::AppLogger.info "Project was renamed: #{old_path_with_namespace} -> #{new_path_with_namespace}"
......
---
title: Rename projects wth reserved names
merge_request: 8234
author:
require 'thread'
class RenameReservedProjectNames < ActiveRecord::Migration
include Gitlab::Database::MigrationHelpers
include Gitlab::ShellAdapter
DOWNTIME = false
THREAD_COUNT = 8
KNOWN_PATHS = %w(.well-known
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def up
queues = Array.new(THREAD_COUNT) { Queue.new }
start = false
threads = Array.new(THREAD_COUNT) do |index|
Thread.new do
queue = queues[index]
# Wait until we have input to process.
until start; end
rename_projects(queue.pop) until queue.empty?
end
end
enum = queues.each
reserved_projects.each_slice(100) do |slice|
begin
queue = enum.next
rescue StopIteration
enum.rewind
retry
end
queue << slice
end
start = true
threads.each(&:join)
end
def down
# nothing to do here
end
private
def reserved_projects
Project.unscoped.
includes(:namespace).
where('EXISTS (SELECT 1 FROM namespaces WHERE projects.namespace_id = namespaces.id)').
where('projects.path' => KNOWN_PATHS)
end
def route_exists?(full_path)
quoted_path = ActiveRecord::Base.connection.quote_string(full_path)
ActiveRecord::Base.connection.
select_all("SELECT id, path FROM routes WHERE path = '#{quoted_path}'").present?
end
# Adds number to the end of the path that is not taken by other route
def rename_path(namespace_path, path_was)
counter = 0
path = "#{path_was}#{counter}"
while route_exists?("#{namespace_path}/#{path}")
counter += 1
path = "#{path_was}#{counter}"
end
path
end
def rename_projects(projects)
projects.each do |project|
id = project.id
path_was = project.path
namespace_path = project.namespace.path
path = rename_path(namespace_path, path_was)
begin
# Because project path update is quite complex operation we can't safely
# copy-paste all code from GitLab. As exception we use Rails code here
project.rename_repo if rename_project_row(project, path)
rescue Exception => e # rubocop: disable Lint/RescueException
Rails.logger.error "Exception when renaming project #{id}: #{e.message}"
end
end
end
def rename_project_row(project, path)
project.respond_to?(:update_attributes) &&
project.update_attributes(path: path) &&
project.respond_to?(:rename_repo)
end
end
# encoding: utf-8
require 'spec_helper'
require Rails.root.join('db', 'post_migrate', '20161221153951_rename_reserved_project_names.rb')
# This migration uses multiple threads, and thus different transactions. This
# means data created in this spec may not be visible to some threads. To work
# around this we use the TRUNCATE cleaning strategy.
describe RenameReservedProjectNames, truncate: true do
let(:migration) { described_class.new }
let!(:project) { create(:empty_project) }
before do
project.path = 'projects'
project.save!(validate: false)
end
describe '#up' do
context 'when project repository exists' do
before { project.create_repository }
context 'when no exception is raised' do
it 'renames project with reserved names' do
migration.up
expect(project.reload.path).to eq('projects0')
end
end
context 'when exception is raised during rename' do
before do
allow(project).to receive(:rename_repo).and_raise(StandardError)
end
it 'captures exception from project rename' do
expect { migration.up }.not_to raise_error
end
end
end
context 'when project repository does not exist' do
it 'does not raise error' do
expect { migration.up }.not_to raise_error
end
end
end
end
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