tests/sitecustomize.py

largefiles: add support for 'largefiles://' url scheme

This changesets allows Mercurial to transparently download content from the
configured largefile store. This handle all authentication and largefile
protocol details.

The target usecase is to leverage largefile infrastructure for clone bundle. See
next changeset for details

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