Brew Concepts

From NovaOrdis Knowledge Base
Revision as of 18:06, 20 April 2018 by Ovidiu (talk | contribs) (→‎Cask)
Jump to navigation Jump to search

Internal

Formula

A formula is a package definition written in Ruby. Homebrew comes with a good amount of existing formulae, and they are stored as /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/<package-name>.rb.

New formulae can be can be created. Instructions are available here: https://docs.brew.sh/Formula-Cookbook. The sequence is:

brew create <URL> 

where <URL> is a zip or tar file, installed with

brew install <formula>

and debugged with:

brew install --debug --verbose <formula>

Formula API: http://www.rubydoc.info/github/Homebrew/brew/master/Formula

Common Formulate

bash

/usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/bash.rb

Bottle

Tap

Cask

Keg

Cellar

User Space vs. System Space

Commands

update

Fetches the latest version of Homebrew and all formulae and upgrades.

doctor

Checks the Homebrew installation for potential problems and exit with a non-zero status if potential problems are found.

cleanup

Remove old version from cellar for all installed (or specified) formulae. Old downloads from the Homebrew download-cache are deleted.