binarysize tool: Cleaning up some progress output.

build/android/pylib/symbols/elf_symbolizer.py

Index: build/android/pylib/symbols/elf_symbolizer.py
diff --git a/build/android/pylib/symbols/elf_symbolizer.py b/build/android/pylib/symbols/elf_symbolizer.py
index 08c02d5a8ac056d8f2cf5d79f6da5e8177f8d09c..8088dfcc026aa82a87be2c6d03b5f46354d991d4 100644
--- a/build/android/pylib/symbols/elf_symbolizer.py
+++ b/build/android/pylib/symbols/elf_symbolizer.py
@@ -2,6 +2,8 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+from __future__ import print_function
+
 import collections
 import datetime
 import logging
@@ -13,7 +15,7 @@ import re
 import subprocess
 import sys
 import threading
-
+import time
 
 # addr2line builds a possibly infinite memory cache that can exhaust
 # the computer's memory if allowed to grow for too long. This constant
@@ -184,12 +186,18 @@ class ELFSymbolizer(object):
 
   def _CreateDisambiguationTable(self):
     """ Non-unique file names will result in None entries"""
+    start_time = time.time()
+    print('Collecting information about available source files...',

[Primiano Tucci (use gerrit), 2014/07/21 16:18:09]

Please use logging.info / debug. We typically use the logging module all over
the codebase. It's cleaner, easier to handle and it doesn't require to import
stuff from the future :)
(even though, here you'd just want sys.stderr.write(...))

+          file=sys.stderr)
     self.disambiguation_table = {}
 
     for root, _, filenames in os.walk(self.source_root_path):
       for f in filenames:
         self.disambiguation_table[f] = os.path.join(root, f) if (f not in
                                        self.disambiguation_table) else None
+    print('Finished collecting information about '
+          'possible files (took %.1f s).' %
+          (time.time() - start_time), file=sys.stderr)
 
 
   class Addr2Line(object):