tests/sitecustomize.py

cmdserver: repo.invalidate() on every runcommand

This will trigger the filecache and recreate every cached property that was
changed by something other than this cmdserver instance (e.g. by running
'hg commit' at the cmdline).

try:
    import coverage
    if hasattr(coverage, 'process_startup'):
        coverage.process_startup()
except ImportError:
    pass