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# frozen_string_literal: true
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("gzip", "-1", "-c", in: compress_rd, out: [db_file_name, "w", 0o600])
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? { |pid|
Process.waitpid(pid)
$?.success?
}
report_success(success)
raise Backup::Error, "Backup failed" unless success
end
def restore
decompress_rd, decompress_wr = IO.pipe
decompress_pid = spawn("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? { |pid|
Process.waitpid(pid)
$?.success?
}
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
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