Class: Formulary::FromKegLoader Private

Inherits:
FormulaLoader show all
Defined in:
formulary.rb

Overview

This class is part of a private API. This class may only be used in the Homebrew/brew repository. Third parties should avoid using this class if possible, as it may be removed or changed without warning.

Loads a formula from a formula file in a keg.

Instance Attribute Summary

Attributes inherited from FormulaLoader

#alias_path, #name, #path, #tap

Class Method Summary collapse

Methods inherited from FormulaLoader

#get_formula, #initialize, #klass

Methods included from Utils::Output::Mixin

#odebug, #odeprecated, #odie, #odisabled, #ofail, #oh1, #oh1_title, #ohai, #ohai_title, #onoe, #opoo, #opoo_outside_github_actions, #pretty_duration, #pretty_installed, #pretty_outdated, #pretty_uninstalled

Methods included from Context

current, current=, #debug?, #quiet?, #verbose?, #with_context

Constructor Details

This class inherits a constructor from Formulary::FormulaLoader

Class Method Details

.try_new(ref, from: nil, warn: false) ⇒ T.attached_class?

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

  • ref (String, Pathname, URI::Generic)
  • from (Symbol, nil) (defaults to: nil)
  • warn (Boolean) (defaults to: false)

Returns:

  • (T.attached_class, nil) 


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# File 'formulary.rb', line 947

def self.try_new(ref, from: nil, warn: false)
  ref = ref.to_s

  keg_directory = HOMEBREW_PREFIX/"opt/#{ref}"
  return unless keg_directory.directory?

  # The formula file in `.brew` will use the canonical name, whereas `ref` can be an alias.
  # Use `Keg#name` to get the canonical name.
  keg = Keg.new(keg_directory)
  return unless (keg_formula = keg_directory/".brew/#{keg.name}.rb").file?

  new(keg.name, keg_formula, tap: keg.tab.tap)
end