Class: Fastlane::Helper::MachoInfo

Inherits:
Object
  • Object
show all
Defined in:
lib/fastlane/plugin/store_sizer/helper/macho_info.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(binary_path) ⇒ MachoInfo

Returns a new instance of MachoInfo.



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# File 'lib/fastlane/plugin/store_sizer/helper/macho_info.rb', line 10

def initialize(binary_path)
  self.min_os_versions = []
  self.encryption_segments = []
  self.text_segment_sizes = []

  file = MachO.open(binary_path)
  if file.kind_of?(MachO::FatFile)
    file.fat_archs.each_index do |arch_index|
      macho_add(file.machos[arch_index], file.fat_archs[arch_index].offset)
    end
  elsif file.kind_of?(MachO::MachOFile)
    macho_add(file, 0)
  end
end

Instance Attribute Details

#encryption_segments ⇒ Object

Returns the value of attribute encryption_segments.



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# File 'lib/fastlane/plugin/store_sizer/helper/macho_info.rb', line 7

def encryption_segments
  @encryption_segments
end

#min_os_versions ⇒ Object

Returns the value of attribute min_os_versions.



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# File 'lib/fastlane/plugin/store_sizer/helper/macho_info.rb', line 6

def min_os_versions
  @min_os_versions
end

#text_segment_sizes ⇒ Object

Returns the value of attribute text_segment_sizes.



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# File 'lib/fastlane/plugin/store_sizer/helper/macho_info.rb', line 8

def text_segment_sizes
  @text_segment_sizes
end

Class Method Details

.split_version(version) ⇒ Object 



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# File 'lib/fastlane/plugin/store_sizer/helper/macho_info.rb', line 25

def self.split_version(version)
  binary = format("%032b", version)
  return [
    binary[0..15], binary[16..23], binary[24..31]
  ].map { |s| s.to_i(2) }
end

Instance Method Details

#macho_add(macho, file_offset) ⇒ Object 



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# File 'lib/fastlane/plugin/store_sizer/helper/macho_info.rb', line 40

def macho_add(macho, file_offset)
  encryption_info = (macho.magic32? ? macho[:LC_ENCRYPTION_INFO] : macho[:LC_ENCRYPTION_INFO_64]).first
  self.encryption_segments.push([file_offset + encryption_info.cryptoff, encryption_info.cryptsize]) unless encryption_info.nil?

  min_version_info = macho[:LC_VERSION_MIN_IPHONEOS].first
  self.min_os_versions.push(MachoInfo.split_version(min_version_info.version)) unless min_version_info.nil?

  text_segments = macho.segments.select { |seg| seg.segname == "__TEXT" }
  self.text_segment_sizes.push(text_segments.map(&:filesize)) unless text_segments.nil?
end

#sizes_info ⇒ Object 



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# File 'lib/fastlane/plugin/store_sizer/helper/macho_info.rb', line 32

def sizes_info
  result = {}
  result["min_os_version"] = self.min_os_versions.first
  result["text_segments_size"] = self.text_segment_sizes.flatten.reduce(0, :+)
  result["text_max_slice_size"] = self.text_segment_sizes.flatten.max
  result
end