pyflakes: ignore files marked no-check-code

tests/filterpyflakes.py

@@ -1,32 +1,38 b''
 #!/usr/bin/env python
 
 # Filter output by pyflakes to control which warnings we check
 
-import sys, re
+import sys, re, os
 
 def makekey(message):
     # "path/file:line: message"
     match = re.search(r"(line \d+)", message)
     line = ''
     if match:
         line = match.group(0)
         message = re.sub(r"(line \d+)", '', message)
     return re.sub(r"([^:]*):([^:]+):([^']*)('[^']*')(.*)$",
                   r'\3:\5:\4:\1:\2:' + line,
                   message)
 
 lines = []
 for line in sys.stdin:
     # We whitelist tests
     pats = [
             r"imported but unused",
             r"local variable '.*' is assigned to but never used",
             r"unable to detect undefined names",
            ]
     if not re.search('|'.join(pats), line):
         continue
+    fn = line.split(':', 1)[0]
+    f = open(os.path.join(os.path.dirname(os.path.dirname(__file__)), fn))
+    data = f.read()
+    f.close()
+    if 'no-check-code' in data:
+        continue
     lines.append(line)
 
 for line in sorted(lines, key = makekey):
     sys.stdout.write(line)
 print