view tests/sitecustomize.py @ 27289:ee33e677f0ac

transplant: widen wlock scope of transplant for consitency while processing

Before this patch, "hg transplant" executes below before acquisition
of wlock.

  - cmdutil.checkunfinished()
  - repo.status() for dirty check
  - repo.dirstate.parents()

It may cause unintentional result, if another command runs parallelly
(see also issue4368).

This patch makes "hg transplant" acquire wlock before processing
instead of acquiring wlock in each of 'transplanter.apply()' and
'transplanter.recover()'.

import os

if os.environ.get('COVERAGE_PROCESS_START'):
    try:
        import coverage
        import random

        # uuid is better, but not available in Python 2.4.
        covpath = os.path.join(os.environ['COVERAGE_DIR'],
                               'cov.%s' % random.randrange(0, 1000000000000))
        cov = coverage.coverage(data_file=covpath, auto_data=True)
        cov._warn_no_data = False
        cov._warn_unimported_source = False
        cov.start()
    except ImportError:
        pass