Github file change notification

Question

Is there a way to notify people on change of some certain files? Specifically, I would like to track change of *.sql files and and notify our developers on a change. How can

Answer 1

Use git diff-tree in your post-receive hook:

 git diff-tree --name-status -rz

You can grep the result to check if certain files are modified (status 'M'), as described in this answer.
you can find many examples on gist.github.com, with this one using the --name-status option.