Class: KegOnlyReason

Inherits:
Object
  • Object
show all
Defined in:
Library/Homebrew/formula_support.rb

Overview

Used to annotate formulae that duplicate macOS provided software or cause conflicts when linked in.

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 9

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 7

def reason
  @reason
end

Instance Method Details

#to_s ⇒ Object 


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

def to_s
  return @explanation unless @explanation.empty?

  case @reason
  when :versioned_formula then <<~EOS
    this is an alternate version of another formula
  EOS
  when :provided_by_macos then <<~EOS
    macOS already provides this software and installing another version in
    parallel can cause all kinds of trouble
  EOS
  when :shadowed_by_macos then <<~EOS
    macOS provides similar software and installing this software in
    parallel can cause all kinds of trouble
  EOS
  when :provided_pre_mountain_lion then <<~EOS
    macOS already provides this software in versions before Mountain Lion
  EOS
  when :provided_pre_mavericks then <<~EOS
    macOS already provides this software in versions before Mavericks
  EOS
  when :provided_pre_el_capitan then <<~EOS
    macOS already provides this software in versions before El Capitan
  EOS
  when :provided_pre_high_sierra then <<~EOS
    macOS already provides this software in versions before High Sierra
  EOS
  when :provided_until_xcode43 then <<~EOS
    Xcode provides this software prior to version 4.3
  EOS
  when :provided_until_xcode5 then <<~EOS
    Xcode provides this software prior to version 5
  EOS
  else
    @reason
  end.strip
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula_support.rb', line 14

def valid?
  case @reason
  when :provided_pre_mountain_lion
    MacOS.version < :mountain_lion
  when :provided_pre_mavericks
    MacOS.version < :mavericks
  when :provided_pre_el_capitan
    MacOS.version < :el_capitan
  when :provided_pre_high_sierra
    MacOS.version < :high_sierra
  when :provided_until_xcode43
    MacOS::Xcode.installed? && MacOS::Xcode.version < "4.3"
  when :provided_until_xcode5
    MacOS::Xcode.installed? && MacOS::Xcode.version < "5.0"
  else
    true
  end
end