Convert screenshots for iPad to iPhone X size

bulk_screenshot_conv.rb

#!/usr/bin/env ruby

require 'bundler/setup'
require 'pry'
require 'pathname'

module Intermediate
  XAXIS = 1826
  YAXIS = 2436
end

module Target
  XAXIS = 1125
end

def read_values(klass)
  klass.constants.map { |c| klass.const_get(c) }
end

def convert(source, target)
  newsize = '%sx%s\!' % read_values(Intermediate)
  crop_area = '%sx%s+0+0' % [Target::XAXIS, Intermediate::YAXIS]
  cmdstr = 'convert %s -resize %s -gravity center -crop %s %s' % [source, newsize, crop_area, target]
  `#{cmdstr}`
end

%w(en-US ja).map { |d| Pathname.new(d) }.each do |dir|
  dir.children.select { |f| f.to_s.include?('iPadPro') }.each do |file|
    basename, extname = file.basename, file.extname
    newname = File.basename(basename, extname).sub('iPadPro', 'iPhoneX')
    res = convert(file, dir.join('%s%s' % [newname, extname]))
    puts res
  end
end