whatstyle.py 文件源码

def format_with_styles(formatter,           # type: CodeFormatter
                       styles,              # type: List[Style]
                       filenames,           # type: List[str]
                       reporterrors=True,   # type: bool
                       cache=None,          # type: Optional[Cache]
                       ccmode=CC_PROCESSES  # type: str
                       ):
    # type: (...) -> Iterator[Tuple[ExeCall, ExeResult]]
    """Reformat all files with all styles and yield pairs
    (job, jobresult) of all reformat operations.
    """
    jobs = []
    sourcecodes = []
    for style, filename in itertools.product(styles, filenames):
        cmdargs = formatter.cmdargs_for_style(style, filename)
        sourcedata = get_cached_file(filename)
        jobs.append(make_execall(formatter.exe, cmdargs, sourcedata, depfiles=[filename]))
        sourcecodes.append(sourcedata)
    jobresults = run_executables(jobs, cache, ccmode=ccmode)
    for srcdata, job, jobres in izip(sourcecodes, jobs, jobresults):
        if reporterrors:
            formatter.reporterrors(job, jobres)
        # A formatter reporting a valid result for non-empty input while returning empty
        # output indicates that the effective result is the unchanged input.
        if not jobres.stdout and srcdata and formatter.valid_job_result(job, jobres):
            jobres = jobres._replace(stdout=srcdata)
        yield job, jobres