Create mock pub links in the build for all packages under pkg, not a hard-coded list

tools/list_pkg_directories.py

Index: tools/list_pkg_directories.py
===================================================================
--- tools/list_pkg_directories.py	(revision 0)
+++ tools/list_pkg_directories.py	(revision 0)
@@ -0,0 +1,18 @@
+#!/usr/bin/env python

[ahe, 2012/12/06 13:44:39]

The style guide we use for Python is
http://www.chromium.org/developers/coding-style.

As far as I can tell, this style guide does not require you to wrap scripts like
this in:

if __name__ == '__main__':
  sys.exit(main())

So I guess this is fine.

[Alan Knight, 2012/12/06 22:09:23]

OK. I don't really know Python, so I don't even know what that would do.

[ahe, 2012/12/06 23:02:28]

See:
http://google-styleguide.googlecode.com/svn/trunk/pyguide.html?showone=Main#Main

+# 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 listing the directories under pkg, with their lib directories.
+Used in pkg.gyp. Lists all of the directories in the current directory
+which have a lib subdirectory.
+
+Usage:
+  python tools/make_links.py TARGET SOURCES...

[ahe, 2012/12/06 13:44:39]

The comment is out of date.

[Alan Knight, 2012/12/06 22:09:23]

Done.

+'''
+import os
+
+paths = map(lambda x: x + '/lib', filter(os.path.isdir, os.listdir('.')))
+filter(lambda x: os.path.exists(x), paths)
+

[ahe, 2012/12/06 13:44:39]

Extra line.

[Alan Knight, 2012/12/06 22:09:23]

Done.