def _op_start_proc(op, run, quiet, extra_env):
env = _op_proc_env(op, run)
if extra_env:
env.update(extra_env)
run.write_attr("env", _remove_private_env(env, op))
log.debug("starting run %s in %s", run.id, run.dir)
log.debug("operation command: %s", op.cmd_args)
log.debug("operation env: %s", env)
stdout, stderr = _proc_streams(quiet)
try:
proc = subprocess.Popen(
op.cmd_args,
env=env,
cwd=run.dir,
stdout=stdout,
stderr=stderr,
)
except OSError as e:
raise ProcessError(e)
else:
op_util.write_proc_lock(proc.pid, run)
return proc
def _write_proc_lock(run):
op_util.write_proc_lock(os.getpid(), run)
