[PATCH] check-code: prepend warning prefix for repeated warnings only once

[Simon Heimberg]

# HG changeset patch
# User Simon Heimberg <simohe at besonet.ch>
# Date 1383387904 -3600
#      Sat Nov 02 11:25:04 2013 +0100
# Branch stable
# Node ID 1f6e8488b6c7eab2186c53cc508b7afbb2731caa
# Parent  d24ee6d7d16730efe4b0894e0cb7c3e931411963
check-code: prepend warning prefix for repeated warnings only once

When a warning occured several times in one file, "warning: " was prepended
several times:

examplefile.py:3:
 > def a(object):
 warning: this looks wrong
examplefile.py:27:
 > def x(object):
 warning: warning: this looks wrong

diff -r d24ee6d7d167 -r 1f6e8488b6c7 contrib/check-code.py
--- a/contrib/check-code.py	Fri Nov 01 17:04:18 2013 -0500
+++ b/contrib/check-code.py	Sat Nov 02 11:25:04 2013 +0100
@@ -456,6 +456,8 @@
                 if prelines is None:
                     prelines = pre.splitlines()
                     postlines = post.splitlines(True)
+                    if i >= nerrs:
+                        msg = "warning: " + msg
 
                 start = m.start()
                 while n < len(postlines):
@@ -482,8 +484,6 @@
                         bl, bu, br = blamecache[n]
                         if bl == l:
                             bd = '%s@%s' % (bu, br)
-                if i >= nerrs:
-                    msg = "warning: " + msg
                 errors.append((f, lineno and n + 1, l, msg, bd))
                 result = False