comparison mercurial/win32.py @ 45942:89a2afe31e82

formating: upgrade to black 20.8b1

This required a couple of small tweaks to un-confuse black, but now it
works. Big formatting changes come from:

 * Dramatically improved collection-splitting logic upstream
 * Black having a strong (correct IMO) opinion that """ is better than '''

Differential Revision: https://phab.mercurial-scm.org/D9430

45941:346af7687c6f

    finally:
        _kernel32.CloseHandle(fh)


def checkcertificatechain(cert, build=True):
    '''Tests the given certificate to see if there is a complete chain to a
       trusted root certificate.  As a side effect, missing certificates are
       downloaded and installed unless ``build=False``.  True is returned if a
       chain to a trusted root exists (even if built on the fly), otherwise
       False.  NB: A chain to a trusted root does NOT imply that the certificate
       is valid.
    '''

    chainctxptr = ctypes.POINTER(CERT_CHAIN_CONTEXT)

    pchainctx = chainctxptr()
    chainpara = CERT_CHAIN_PARA(

    err = _kernel32.GetLastError()
    return err == _ERROR_BROKEN_PIPE or err == _ERROR_NO_DATA


def testpid(pid):
    '''return True if pid is still running or unable to
    determine, False otherwise'''
    h = _kernel32.OpenProcess(_PROCESS_QUERY_INFORMATION, False, pid)
    if h:
        try:
            status = _DWORD()
            if _kernel32.GetExitCodeProcess(h, ctypes.byref(status)):

_signalhandler = []


def setsignalhandler():
    '''Register a termination handler for console events including
    CTRL+C. python signal handlers do not work well with socket
    operations.
    '''

    def handler(event):
        _kernel32.ExitProcess(1)

    if _signalhandler:

    height = csbi.srWindow.Bottom - csbi.srWindow.Top + 1
    return width, height


def enablevtmode():
    '''Enable virtual terminal mode for the associated console.  Return True if
    enabled, else False.'''

    ENABLE_VIRTUAL_TERMINAL_PROCESSING = 0x4

    handle = _kernel32.GetStdHandle(
        _STD_OUTPUT_HANDLE

45942:89a2afe31e82

    finally:
        _kernel32.CloseHandle(fh)


def checkcertificatechain(cert, build=True):
    """Tests the given certificate to see if there is a complete chain to a
    trusted root certificate.  As a side effect, missing certificates are
    downloaded and installed unless ``build=False``.  True is returned if a
    chain to a trusted root exists (even if built on the fly), otherwise
    False.  NB: A chain to a trusted root does NOT imply that the certificate
    is valid.
    """

    chainctxptr = ctypes.POINTER(CERT_CHAIN_CONTEXT)

    pchainctx = chainctxptr()
    chainpara = CERT_CHAIN_PARA(

    err = _kernel32.GetLastError()
    return err == _ERROR_BROKEN_PIPE or err == _ERROR_NO_DATA


def testpid(pid):
    """return True if pid is still running or unable to
    determine, False otherwise"""
    h = _kernel32.OpenProcess(_PROCESS_QUERY_INFORMATION, False, pid)
    if h:
        try:
            status = _DWORD()
            if _kernel32.GetExitCodeProcess(h, ctypes.byref(status)):

_signalhandler = []


def setsignalhandler():
    """Register a termination handler for console events including
    CTRL+C. python signal handlers do not work well with socket
    operations.
    """

    def handler(event):
        _kernel32.ExitProcess(1)

    if _signalhandler:

    height = csbi.srWindow.Bottom - csbi.srWindow.Top + 1
    return width, height


def enablevtmode():
    """Enable virtual terminal mode for the associated console.  Return True if
    enabled, else False."""

    ENABLE_VIRTUAL_TERMINAL_PROCESSING = 0x4

    handle = _kernel32.GetStdHandle(
        _STD_OUTPUT_HANDLE