# HG changeset patch
# User Manuel Jacob <me@manueljacob.de>
# Date 1594368185 -7200
# Node ID 29a905fe23aeb90519cf8ac300c69a0b0cac805a
# Parent  00cdac66961432877ec6da4a3495b41b65675899
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.

diff -r 00cdac669614 -r 29a905fe23ae mercurial/utils/procutil.py
--- a/mercurial/utils/procutil.py	Fri Jul 10 09:59:36 2020 +0200
+++ b/mercurial/utils/procutil.py	Fri Jul 10 10:03:05 2020 +0200
@@ -91,9 +91,6 @@
     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.
@@ -103,6 +100,8 @@
         # 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)