annotate tests/sitecustomize.py @ 45919:aba4f2c97e74

scmutil: try-delete `.hg/store/requires` if store requirements are empty

When downgrading from a shared-safe repository to non-shared-safe repository, we
end up in a case where we had requirements stored in `.hg/store/requires` but no
longer want them there.

Let's explicitly try delete the `.hg/store/requires` file if store requirements
are empty.

Differential Revision: https://phab.mercurial-scm.org/D9357

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