packaging: add docutils as dependency
The previous commit revealed that attempting to run
`python setup.py build_doc` from the packaging virtualenv
failed due to missing docutils package. We didn't notice
this before because py2exe Windows packaging appears to
use a Python from another virtualenv (which does include
docutils) to invoke setup.py. I discovered this as part
of implementing packaging outside of that virtualenv
environment.
Differential Revision: https://phab.mercurial-scm.org/D8470
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