clone: warn when streaming was requested but couldn't be performed
This helps both users and the people who support them figure out why
a stream clone couldn't be performed.
In an upcoming patch we're going to add a way for servers to hard
abort on a full getbundle. In those cases servers might expect
clients to perform a stream clone, so it's important to communicate
why one couldn't be done.
from __future__ import absolute_import
import os
if os.environ.get('COVERAGE_PROCESS_START'):
try:
import coverage
import uuid
covpath = os.path.join(os.environ['COVERAGE_DIR'],
'cov.%s' % uuid.uuid1())
cov = coverage.coverage(data_file=covpath, auto_data=True)
cov._warn_no_data = False
cov._warn_unimported_source = False
cov.start()
except ImportError:
pass