require 'yaml' module Backup class Database attr_reader :config, :db_dir def initialize @config = YAML.load_file(File.join(Rails.root,'config','database.yml'))[Rails.env] @db_dir = File.join(Gitlab.config.backup.path, 'db') FileUtils.rm_rf(@db_dir) # Ensure the parent dir of @db_dir exists FileUtils.mkdir_p(Gitlab.config.backup.path) # Fail if somebody raced to create @db_dir before us FileUtils.mkdir(@db_dir, mode: 0700) end def dump success = case config["adapter"] when /^mysql/ then $progress.print "Dumping MySQL database #{config['database']} ... " # Workaround warnings from MySQL 5.6 about passwords on cmd line ENV['MYSQL_PWD'] = config["password"].to_s if config["password"] system('mysqldump', *mysql_args, config['database'], out: db_file_name) when "postgresql" then $progress.print "Dumping PostgreSQL database #{config['database']} ... " pg_env # Pass '--clean' to include 'DROP TABLE' statements in the DB dump. system('pg_dump', '--clean', config['database'], out: db_file_name) end report_success(success) abort 'Backup failed' unless success $progress.print 'Compressing database ... ' success = system('gzip', db_file_name) report_success(success) abort 'Backup failed: compress error' unless success end def restore $progress.print 'Decompressing database ... ' success = system('gzip', '-d', db_file_name_gz) report_success(success) abort 'Restore failed: decompress error' unless success success = case config["adapter"] when /^mysql/ then $progress.print "Restoring MySQL database #{config['database']} ... " # Workaround warnings from MySQL 5.6 about passwords on cmd line ENV['MYSQL_PWD'] = config["password"].to_s if config["password"] system('mysql', *mysql_args, config['database'], in: db_file_name) when "postgresql" then $progress.print "Restoring PostgreSQL database #{config['database']} ... " pg_env system('psql', config['database'], '-f', db_file_name) end report_success(success) abort 'Restore failed' unless success end protected def db_file_name File.join(db_dir, 'database.sql') end def db_file_name_gz File.join(db_dir, 'database.sql.gz') end def mysql_args args = { 'host' => '--host', 'port' => '--port', 'socket' => '--socket', 'username' => '--user', 'encoding' => '--default-character-set' } args.map { |opt, arg| "#{arg}=#{config[opt]}" if config[opt] }.compact end def pg_env ENV['PGUSER'] = config["username"] if config["username"] ENV['PGHOST'] = config["host"] if config["host"] ENV['PGPORT'] = config["port"].to_s if config["port"] ENV['PGPASSWORD'] = config["password"].to_s if config["password"] end def report_success(success) if success $progress.puts '[DONE]'.green else $progress.puts '[FAILED]'.red end end end end