Homebrew install specific version of formula?

Question

How do I install a specific version of a formula in homebrew? For example, postgresql-8.4.4 instead of the latest 9.0.

Answer 1

Based on the workflow described by @tschundeee and @Debilski’s update 1, I automated the procedure and added cleanup in this script.

Download it, put it in your path and brewv . For the specific OP, it would be:

cd path/to/downloaded/script/
./brewv postgresql 8.4.4

:)