mercurial/commandserver.py

36834:1527f40de3b3

def _protectio(ui):
    """ duplicates streams and redirect original to null if ui uses stdio """
    ui.flush()
    newfiles = []
    nullfd = os.open(os.devnull, os.O_RDWR)
    for f, sysf, mode in [(ui.fin, util.stdin, pycompat.sysstr('rb')),
                          (ui.fout, util.stdout, pycompat.sysstr('wb'))]:
        if f is sysf:
            newfd = os.dup(f.fileno())
            os.dup2(nullfd, f.fileno())
            f = os.fdopen(newfd, mode)
        newfiles.append(f)

36835:5bc7ff103081

def _protectio(ui):
    """ duplicates streams and redirect original to null if ui uses stdio """
    ui.flush()
    newfiles = []
    nullfd = os.open(os.devnull, os.O_RDWR)
    for f, sysf, mode in [(ui.fin, util.stdin, r'rb'),
                          (ui.fout, util.stdout, r'wb')]:
        if f is sysf:
            newfd = os.dup(f.fileno())
            os.dup2(nullfd, f.fileno())
            f = os.fdopen(newfd, mode)
        newfiles.append(f)