debian/watch problem due to http://code.google.com download page's link format change

[Asias He <asias.hejun@gmail.com>]

Hi, All

Recently, code.google.com changed the download page link format.
As a result, the old debian/watch file in packages whose upstream source code
hosted on code.google.com did work anymore.

Take the ibus project for example:
$ cat ibus/debian/watch
version=3
http://code.google.com/p/ibus/downloads/list \
http://ibus.googlecode.com/files/ibus-([0-9].*)\.tar\.gz

The new download page contain the "detail" link, one has to follow
the new "detail" link in order to find the real download url.
something like this:
http://code.google.com/p/ibus/downloads/list
http://code.google.com/p/ibus/downloads/detail?name=ibus-1.3.3.tar.gz&can=2&q=
http://ibus.googlecode.com/files/ibus-1.3.3.tar.gz

I believe this problem affects all the packages whose upstream source
code is hosted on code.google.com.

Is there an easy way to deal this.

Thanks.

--
Best Regards
Asias He