Robustify printing of test errors to stderr.

generate_test_report.py

 #!/usr/bin/python
 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 
 """Parses and displays the contents of one or more autoserv result directories.
 
 This script parses the contents of one or more autoserv results folders and
 generates test reports.
@@ skipping 198 matching lines @@
     print 'Total PASS: ' + self._color.Color(Color.BOLD, pass_str)
 
     # Print out the client debug information for failed tests.
     if self._options.print_debug:
       for test in tests_with_errors:
         debug_file_regex = os.path.join(self._options.strip, test, 'debug',
                                        '%s*.DEBUG' % os.path.basename(test))
         for path in glob.glob(debug_file_regex):
           try:
             fh = open(path)
-            print ('\n========== DEBUG FILE %s FOR TEST %s ==============\n' % (
-                   path, test))
-            print fh.read()
-            print('\n=========== END DEBUG %s FOR TEST %s ===============\n' % (
-                   path, test))
+            print >> sys.stderr, (
+                '\n========== DEBUG FILE %s FOR TEST %s ==============\n' % (
+                path, test))
+            out = fh.read()
+            while out:
+              print >> sys.stderr, out
+              out = fh.read()
+            print >> sys.stderr, (
+                 '\n=========== END DEBUG %s FOR TEST %s ===============\n' % (
+                 path, test))
             fh.close()
           except:
             print 'Could not open %s' % path
 
   def Run(self):
     """Runs report generation."""
     self._CollectResults()
     self._GenerateReportText()
     for v in self._results.itervalues():
       if v['status'] != 'PASS':
@@ skipping 27 matching lines @@
   if not args:
     parser.print_help()
     Die('no result directories provided')
 
   generator = ReportGenerator(options, args)
   generator.Run()
 
 
 if __name__ == '__main__':
   main()