require 'yaml' module Backup class Database attr_reader :progress attr_reader :config, :db_file_name def initialize(progress) @progress = progress @config = YAML.load_file(File.join(Rails.root, 'config', 'database.yml'))[Rails.env] @db_file_name = File.join(Gitlab.config.backup.path, 'db', 'database.sql.gz') end def dump FileUtils.mkdir_p(File.dirname(db_file_name)) FileUtils.rm_f(db_file_name) compress_rd, compress_wr = IO.pipe compress_pid = spawn(*%w(gzip -1 -c), in: compress_rd, out: [db_file_name, 'w', 0600]) compress_rd.close dump_pid = 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"] spawn('mysqldump', *mysql_args, config['database'], out: compress_wr) when "postgresql" then progress.print "Dumping PostgreSQL database #{config['database']} ... " pg_env pgsql_args = ["--clean"] # Pass '--clean' to include 'DROP TABLE' statements in the DB dump. if Gitlab.config.backup.pg_schema pgsql_args << "-n" pgsql_args << Gitlab.config.backup.pg_schema end spawn('pg_dump', *pgsql_args, config['database'], out: compress_wr) end compress_wr.close success = [compress_pid, dump_pid].all? do |pid| Process.waitpid(pid) $?.success? end report_success(success) raise Backup::Error, 'Backup failed' unless success end def restore decompress_rd, decompress_wr = IO.pipe decompress_pid = spawn(*%w(gzip -cd), out: decompress_wr, in: db_file_name) decompress_wr.close restore_pid = 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"] spawn('mysql', *mysql_args, config['database'], in: decompress_rd) when "postgresql" then progress.print "Restoring PostgreSQL database #{config['database']} ... " pg_env spawn('psql', config['database'], in: decompress_rd) end decompress_rd.close success = [decompress_pid, restore_pid].all? do |pid| Process.waitpid(pid) $?.success? end report_success(success) abort Backup::Error, 'Restore failed' unless success end protected def mysql_args args = { 'host' => '--host', 'port' => '--port', 'socket' => '--socket', 'username' => '--user', 'encoding' => '--default-character-set', # SSL 'sslkey' => '--ssl-key', 'sslcert' => '--ssl-cert', 'sslca' => '--ssl-ca', 'sslcapath' => '--ssl-capath', 'sslcipher' => '--ssl-cipher' } args.map { |opt, arg| "#{arg}=#{config[opt]}" if config[opt] }.compact end def pg_env args = { 'username' => 'PGUSER', 'host' => 'PGHOST', 'port' => 'PGPORT', 'password' => 'PGPASSWORD', # SSL 'sslmode' => 'PGSSLMODE', 'sslkey' => 'PGSSLKEY', 'sslcert' => 'PGSSLCERT', 'sslrootcert' => 'PGSSLROOTCERT', 'sslcrl' => 'PGSSLCRL', 'sslcompression' => 'PGSSLCOMPRESSION' } args.each { |opt, arg| ENV[arg] = config[opt].to_s if config[opt] } end def report_success(success) if success progress.puts '[DONE]'.color(:green) else progress.puts '[FAILED]'.color(:red) end end end end