with the intention that they are used in forked worker processes.
"""
import errno
import signal
import subprocess
import sys
import tarfile
import tempfile
import wal_e.log_help as log_help
from wal_e.exception import UserException, UserCritical
from wal_e.piper import pipe, pipe_wait, popen_sp
logger = log_help.get_logger('wal_e.worker')
PSQL_BIN = 'psql'
ENCODE_BIN = 'pg_wal_encrypt'
DECODE_BIN = 'pg_wal_decrypt'
S3CMD_BIN = 's3cmd'
MBUFFER_BIN = 'mbuffer'
# BUFSIZE_HT: Buffer Size, High Throughput
#
# This is set conservatively because small systems can end up being
# unhappy with too much memory usage in buffers.
BUFSIZE_HT = 128 * 8192
import wal_e.worker as worker
import wal_e.tar_partition as tar_partition
import wal_e.log_help as log_help
from wal_e.exception import UserException, UserCritical
from wal_e.piper import popen_sp
from wal_e.worker import PSQL_BIN, ENCODE_BIN, DECODE_BIN, S3CMD_BIN, MBUFFER_BIN
from wal_e.worker import check_call_wait_sigint
# TODO: Make controllable from userland
log_help.configure(
level=logging.DEBUG,
format='%(asctime)s %(name)-12s %(levelname)-8s %(message)s')
logger = log_help.get_logger('wal_e.main')
# Provides guidence in object names as to the version of the file
# structure.
FILE_STRUCTURE_VERSION = '005'
class UTC(datetime.tzinfo):
"""
UTC timezone
Adapted from a Python example
"""
ZERO = datetime.timedelta(0)