fabfile.py 文件源码

def vulture():
    """ try to find dead code paths """
    with api.quiet():
        if not api.local('which vulture').succeeded:
            print 'vulture not found, installing it'
            api.local('pip install vulture')
    ignore_functions_grep = 'egrep -v "{0}"'.format(
        '|'.join(VULTURE_IGNORE_FUNCTIONS))
    excluded = ",".join(VULTURE_EXCLUDE_PATHS)
    excluded_paths = (' --exclude ' + excluded) if excluded else ''
    vulture_cmd = '\n  vulture {pkg_name}{exclude}{pipes}'
    vulture_cmd = vulture_cmd.format(
        pkg_name=PKG_NAME,
        exclude=excluded_paths,
        pipes='|'.join(['', ignore_functions_grep]))
    changedir = api.lcd(os.path.dirname(__file__))
    warn_only = api.settings(warn_only=True)
    be_quit = api.hide('warnings')
    with contextlib.nested(changedir, warn_only, be_quit):
        result = api.local(vulture_cmd, capture=True)
        exit_code = result.return_code
    print result.strip()
    raise SystemExit(exit_code)