Module: MachOShim Private

Extended by:
Forwardable
Included in:
Pathname
Defined in:
os/mac/mach.rb

Overview

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

Pathname extension for dealing with Mach-O files.

Instance Method Summary collapse

Instance Method Details

#arch ⇒ Object

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. 



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# File 'os/mac/mach.rb', line 131

def arch
  case archs.length
  when 0 then :dunno
  when 1 then archs.first
  else :universal
  end
end

#archs ⇒ Object

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. 



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# File 'os/mac/mach.rb', line 127

def archs
  mach_data.map { |m| m.fetch :arch }
end

#change_dylib_id(id, **options) ⇒ Object

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. 



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# File 'os/mac/mach.rb', line 80

def change_dylib_id(id, **options)
  macho.change_dylib_id(id, options)
  macho.write!
end

#change_install_name(old, new, **options) ⇒ Object

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. 



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# File 'os/mac/mach.rb', line 85

def change_install_name(old, new, **options)
  macho.change_install_name(old, new, options)
  macho.write!
end

#change_rpath(old, new, **options) ⇒ Object

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. 



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# File 'os/mac/mach.rb', line 75

def change_rpath(old, new, **options)
  macho.change_rpath(old, new, options)
  macho.write!
end

#delete_rpath(rpath, **options) ⇒ Object

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. 



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# File 'os/mac/mach.rb', line 62

def delete_rpath(rpath, **options)
  candidates = rpaths(resolve_variable_references: false).select do |r|
    resolve_variable_name(r) == resolve_variable_name(rpath)
  end

  # Delete the last instance to avoid changing the order in which rpaths are searched.
  rpath_to_delete = candidates.last
  options[:last] = true

  macho.delete_rpath(rpath_to_delete, options)
  macho.write!
end

#dylib? ⇒ Boolean

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.

Returns:

  • (Boolean) 


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# File 'os/mac/mach.rb', line 159

def dylib?
  mach_data.any? { |m| m.fetch(:type) == :dylib }
end

#dynamically_linked_libraries(except: :none, resolve_variable_references: true) ⇒ Object

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. 



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# File 'os/mac/mach.rb', line 90

def dynamically_linked_libraries(except: :none, resolve_variable_references: true)
  lcs = macho.dylib_load_commands.reject { |lc| lc.type == except }
  names = lcs.map(&:name).map(&:to_s).uniq
  names.map!(&method(:resolve_variable_name)) if resolve_variable_references

  names
end

#i386? ⇒ Boolean

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.

Returns:

  • (Boolean) 


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# File 'os/mac/mach.rb', line 143

def i386?
  arch == :i386
end

#mach_o_bundle? ⇒ Boolean

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.

Returns:

  • (Boolean) 


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# File 'os/mac/mach.rb', line 169

def mach_o_bundle?
  mach_data.any? { |m| m.fetch(:type) == :bundle }
end

#mach_o_executable? ⇒ Boolean Also known as: binary_executable?

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.

Returns:

  • (Boolean) 


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# File 'os/mac/mach.rb', line 163

def mach_o_executable?
  mach_data.any? { |m| m.fetch(:type) == :executable }
end

#ppc64? ⇒ Boolean

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.

Returns:

  • (Boolean) 


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# File 'os/mac/mach.rb', line 155

def ppc64?
  arch == :ppc64
end

#ppc7400? ⇒ Boolean

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.

Returns:

  • (Boolean) 


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# File 'os/mac/mach.rb', line 151

def ppc7400?
  arch == :ppc7400
end

#resolve_rpath(name) ⇒ Object

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. 



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# File 'os/mac/mach.rb', line 118

def resolve_rpath(name)
  target = T.let(nil, T.nilable(String))
  return unless rpaths(resolve_variable_references: true).find do |rpath|
    File.exist?(target = File.join(rpath, name.delete_prefix("@rpath")))
  end

  target
end

#resolve_variable_name(name, resolve_rpaths: true) ⇒ Object

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. 



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# File 'os/mac/mach.rb', line 106

def resolve_variable_name(name, resolve_rpaths: true)
  if name.start_with? "@loader_path"
    Pathname(name.sub("@loader_path", dirname)).cleanpath.to_s
  elsif name.start_with?("@executable_path") && binary_executable?
    Pathname(name.sub("@executable_path", dirname)).cleanpath.to_s
  elsif resolve_rpaths && name.start_with?("@rpath") && (target = resolve_rpath(name)).present?
    target
  else
    name
  end
end

#rpaths(resolve_variable_references: true) ⇒ Object

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. 



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# File 'os/mac/mach.rb', line 98

def rpaths(resolve_variable_references: true)
  names = macho.rpaths
  # Don't recursively resolve rpaths to avoid infinite loops.
  names.map! { |name| resolve_variable_name(name, resolve_rpaths: false) } if resolve_variable_references

  names
end

#universal? ⇒ Boolean

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.

Returns:

  • (Boolean) 


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# File 'os/mac/mach.rb', line 139

def universal?
  arch == :universal
end

#x86_64? ⇒ Boolean

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.

Returns:

  • (Boolean) 


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# File 'os/mac/mach.rb', line 147

def x86_64?
  arch == :x86_64
end