diff mercurial/windows.py @ 11010:18e81d42ee5c stable

util: fix default termwidth() under Windows

  sys.stdout.write('-'*80 + '\n')

or

  sys.stdout.write('-'*80 + '\r')

do not work on Windows as they do on unix. On a 80 columns Windows console, the
extra CR or LF are interpreted as if belonging to the next line, so the first
command displays 2 lines (only one on unix) and the second one leave the line
visible and move back to the following line. To avoid this, we sacrifice one
column under Windows.

--- a/mercurial/windows.py	Tue Apr 27 00:44:06 2010 +0530
+++ b/mercurial/windows.py	Mon Apr 26 22:30:40 2010 +0200
@@ -356,6 +356,13 @@
 def gethgcmd():
     return [sys.executable] + sys.argv[:1]
 
+def termwidth_():
+    # cmd.exe does not handle CR like a unix console, the CR is
+    # counted in the line length. On 80 columns consoles, if 80
+    # characters are written, the following CR won't apply on the
+    # current line but on the new one. Keep room for it.
+    return 79
+
 try:
     # override functions with win32 versions if possible
     from win32 import *