Beginning work on GN build

tools/make_links.py

 #!/usr/bin/env python
 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 
 """Tool for creating symlinks from SOURCES to TARGET.
 
 For each SOURCE in SOURCES create a link from SOURCE to TARGET.  If a
 SOURCE ends with .../lib, the lib suffix is ignored when determining
@@ skipping 24 matching lines @@
 
 def get_options():
   result = optparse.OptionParser()
   result.add_option("--timestamp_file", "",
       help='Create a timestamp file when done creating the links.',
       default='')
   return result.parse_args()
 
 def make_link(source, target, orig_source):
   if os.path.islink(target):
-    print 'Removing %s' % target
-    sys.stdout.flush()
     os.unlink(target)
 
   if os.path.isdir(target):
-    print 'Removing %s' % target
-    sys.stdout.flush()
     os.rmdir(target)
 
   if os.path.isfile(orig_source):
-    print 'Copying file from %s to %s' % (orig_source, target)
-    sys.stdout.flush()
     shutil.copyfile(orig_source, target)
     return 0
   else:
-    print 'Creating link from %s to %s' % (source, target)
-    sys.stdout.flush()
-
     if utils.GuessOS() == 'win32':
       return subprocess.call(['mklink', '/j', target, source], shell=True)
     else:
       return subprocess.call(['ln', '-s', source, target])
 
 def create_timestamp_file(options):
   if options.timestamp_file != '':
     dir_name = os.path.dirname(options.timestamp_file)
     if not os.path.exists(dir_name):
       os.mkdir(dir_name)
@@ skipping 10 matching lines @@
     for link in os.listdir(target):
       full_link = os.path.join(target, link)
       if os.path.isdir(full_link) and utils.IsWindows():
         # It seems like python on Windows is treating pseudo symlinks to
         # directories as directories.
         os.rmdir(full_link)
       else:
         os.remove(full_link)
   else:
     os.makedirs(target)
-  linked_names = {}; 
+  linked_names = {};
   for source in args[1:]:
     # Assume the source directory is named ".../NAME/lib".
     split = source.split(':')
     name = None
     if len(split) == 2: (source, name) = split
 
     (path, lib) = os.path.split(source)
     if lib != 'lib':
       path = source
     # Remove any additional path components preceding NAME, if one wasn't
@@ skipping 15 matching lines @@
       source = os.path.relpath(source, start=target)
     exit_code = make_link(source, os.path.join(target, name), orig_source)
     if exit_code != 0:
       return exit_code
   create_timestamp_file(options)
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv))