How to configure the mail notification on commit

Hi,

I want to send a mail to my team whenever there is a commit to the cvs code.
It was done. But i wish to include the following details in the body of the
mail.

1. version numbers of the modified files,
2. difference between the modified files  How can i do that.

difference == lines of code that have added/changed.

( one thing is ...  if i print rdiff command output to the body of the mail,
will it help me.. how can i print that)

Seeking an immediate help.

                                                  Thanks in Advance,


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K.R.Kiranmayi,
Oracle India Pvt. Ltd,
Hyderabad.