def _ProcessOutput(self, line, prog):
"""Takes care of child process output.
@type line: string
@param line: Child output line
@type prog: number
@param prog: Program from which the line originates
"""
force_update = False
forward_line = line
if prog == PROG_SOCAT:
level = None
parts = line.split(None, 4)
if len(parts) == 5:
(_, _, _, level, msg) = parts
force_update = self._ProcessSocatOutput(
self._status_file, level, msg)
if self._debug or (level and level not in SOCAT_LOG_IGNORE):
forward_line = "socat: %s %s" % (level, msg)
else:
forward_line = None
else:
forward_line = "socat: %s" % line
elif prog == PROG_DD:
(should_forward, force_update) = self._ProcessDdOutput(line)
if should_forward or self._debug:
forward_line = "dd: %s" % line
else:
forward_line = None
elif prog == PROG_DD_PID:
if self._dd_pid:
raise RuntimeError("dd PID reported more than once")
logging.debug("Received dd PID %r", line)
self._dd_pid = int(line)
forward_line = None
elif prog == PROG_EXP_SIZE:
logging.debug("Received predicted size %r", line)
forward_line = None
if line:
try:
exp_size = utils.BytesToMebibyte(int(line))
except (ValueError, TypeError), err:
logging.error(
"Failed to convert predicted size %r to number: %s",
line, err)
exp_size = None
else:
exp_size = None
self._exp_size = exp_size
def _ProcessDdOutput(self, line):
"""Interprets a line of dd(1)'s output.
"""
m = DD_INFO_RE.match(line)
if m:
seconds = float(m.group("seconds"))
mbytes = utils.BytesToMebibyte(int(m.group("bytes")))
self._UpdateDdProgress(seconds, mbytes)
return (False, True)
m = DD_STDERR_IGNORE.match(line)
if m:
# Ignore
return (False, False)
# Forward line
return (True, False)
