comparison mercurial/utils/procutil.py @ 45081:29a905fe23ae

procutil: use mercurial.windows.winstdout only on Python 2 and TTYs

Python 3 already works around the bug. The workaround is only needed when
writing to consoles. If stdout is a console, sys.stdout.isatty() is true.

45080:00cdac669614

else:
    stdin = sys.stdin
    stdout = sys.stdout
    stderr = sys.stderr

if pycompat.iswindows:
    stdout = platform.winstdout(stdout)

# glibc determines buffering on first write to stdout - if we replace a TTY
# destined stdout with a pipe destined stdout (e.g. pager), we want line
# buffering.
if isatty(stdout):
    if pycompat.ispy3:
        # Python 3 implements its own I/O streams.
        # The standard library doesn't offer line-buffered binary streams.
        stdout = make_line_buffered(stdout)
    elif pycompat.iswindows:
        # Python 2 uses the I/O streams provided by the C library.
        # The Windows C runtime library doesn't support line buffering.
        stdout = make_line_buffered(stdout)
    else:
        stdout = os.fdopen(stdout.fileno(), 'wb', 1)

45081:29a905fe23ae

else:
    stdin = sys.stdin
    stdout = sys.stdout
    stderr = sys.stderr

# glibc determines buffering on first write to stdout - if we replace a TTY
# destined stdout with a pipe destined stdout (e.g. pager), we want line
# buffering.
if isatty(stdout):
    if pycompat.ispy3:
        # Python 3 implements its own I/O streams.
        # The standard library doesn't offer line-buffered binary streams.
        stdout = make_line_buffered(stdout)
    elif pycompat.iswindows:
        # Work around size limit when writing to console.
        stdout = platform.winstdout(stdout)
        # Python 2 uses the I/O streams provided by the C library.
        # The Windows C runtime library doesn't support line buffering.
        stdout = make_line_buffered(stdout)
    else:
        stdout = os.fdopen(stdout.fileno(), 'wb', 1)