Class: KegOnlyReason

Inherits:
Object
  • Object
show all
Extended by:
T::Sig
Defined in:
Library/Homebrew/formula_support.rb,
Library/Homebrew/extend/os/mac/formula_support.rb

Overview

typed: strict frozen_string_literal: true

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(reason, explanation) ⇒ KegOnlyReason

Returns a new instance of KegOnlyReason.


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# File 'Library/Homebrew/formula_support.rb', line 12

def initialize(reason, explanation)
  @reason = reason
  @explanation = explanation
end

Instance Attribute Details

#reason ⇒ Object (readonly)

Returns the value of attribute reason


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# File 'Library/Homebrew/formula_support.rb', line 10

def reason
  @reason
end

Instance Method Details

#applicable? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula_support.rb', line 33

def applicable?
  # macOS reasons aren't applicable on other OSs
  # (see extend/os/mac/formula_support for override on macOS)
  !by_macos?
end

#by_macos? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula_support.rb', line 29

def by_macos?
  provided_by_macos? || shadowed_by_macos?
end

#provided_by_macos? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula_support.rb', line 21

def provided_by_macos?
  @reason == :provided_by_macos
end

#shadowed_by_macos? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula_support.rb', line 25

def shadowed_by_macos?
  @reason == :shadowed_by_macos
end

#to_s ⇒ Object 


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# File 'Library/Homebrew/formula_support.rb', line 39

def to_s
  return @explanation unless @explanation.empty?

  if versioned_formula?
    <<~EOS
      this is an alternate version of another formula
    EOS
  elsif provided_by_macos?
    <<~EOS
      macOS already provides this software and installing another version in
      parallel can cause all kinds of trouble
    EOS
  elsif shadowed_by_macos?
    <<~EOS
      macOS provides similar software and installing this software in
      parallel can cause all kinds of trouble
    EOS
  else
    @reason
  end.strip
end

#versioned_formula? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula_support.rb', line 17

def versioned_formula?
  @reason == :versioned_formula
end