How do I point brew at a local formula?

[jaredjstewart]

I have forked homebrew, edited a formula, and would like to make a pull request. The steps in the "Contributing to Homebrew" guide say to run:

brew install --build-from-source foo

It seems like there is a step missing: What do I need to do in order to point homebrew at my edited version of the formula?

[vitorgalvao]

To be absolutely sure you’re pointing it at your modified formula, wherever it is located, give it the exact path to the file (brew install --build-from-source ./foo.rb, for example).

[MikeMcQuaid]

@jaredjstewart It uses your edited version by default. Is it not behaving as expected? Did you use brew edit or brew audit? Thanks!

[jaredjstewart]

My confusion arose from having Homebrew installed at /usr/local/Homebrew, but then also cloning the homebrew-core repo into ~/homebrew-core. Thanks for clearing this up!

[jaredjstewart]

I pushed my changes here: https://github.com/jaredjstewart/homebrew-core/tree/fixJavaVersionForApacheGeode

However, I didn't open a PR yet, since I encountered and error when running brew audit --strict foo:

apache-geode:
  * version should not decrease
Error: 1 problem in 1 formula

Can you provide any guidance for how to go about fixing this problem? (The change I made was for apache-geode to require Java 1.8 instead of 1.8+, as Geode does not play well with Java 9.)

[MikeMcQuaid]

@jaredjstewart Open the PR anyway, you can probably ignore that. Glad you got it sorted!