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require "vendor/macho/macho"
require "os/mac/architecture_list"
module MachOShim
# @private
def macho
@macho ||= begin
MachO.open(to_s)
end
end
# @private
def mach_data
@mach_data ||= begin
machos = []
mach_data = []
if MachO::Utils.fat_magic?(macho.magic)
machos = macho.machos
else
machos << macho
end
machos.each do |m|
arch = case m.cputype
when :x86_64, :i386, :ppc64 then m.cputype
when :ppc then :ppc7400
else :dunno
end
type = case m.filetype
when :dylib, :bundle then m.filetype
when :execute then :executable
else :dunno
end
mach_data << { arch: arch, type: type }
end
mach_data
rescue MachO::NotAMachOError
# Silently ignore errors that indicate the file is not a Mach-O binary ...
[]
rescue
# ... but complain about other (parse) errors for further investigation.
if ARGV.homebrew_developer?
onoe "Failed to read Mach-O binary: #{self}"
raise
end
[]
end
end
def dynamically_linked_libraries(except: :none)
lcs = macho.dylib_load_commands.reject { |lc| lc.type == except }
lcs.map(&:name).map(&:to_s).uniq
end
def dylib_id
macho.dylib_id
end
def archs
mach_data.map { |m| m.fetch :arch }.extend(ArchitectureListExtension)
end
def arch
case archs.length
when 0 then :dunno
when 1 then archs.first
else :universal
end
end
def universal?
arch == :universal
end
def i386?
arch == :i386
end
def x86_64?
arch == :x86_64
end
def ppc7400?
arch == :ppc7400
end
def ppc64?
arch == :ppc64
end
# @private
def dylib?
mach_data.any? { |m| m.fetch(:type) == :dylib }
end
# @private
def mach_o_executable?
mach_data.any? { |m| m.fetch(:type) == :executable }
end
# @private
def mach_o_bundle?
mach_data.any? { |m| m.fetch(:type) == :bundle }
end
end
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