Skip to content

Instantly share code, notes, and snippets.

@hinc

hinc/dcp-converter.rb

Forked from dhh/dcp-converter.rb
Created October 20, 2018 16:03
Show Gist options

  • Select an option

    Learn more about clone URLs
  • Save hinc/6b39f53fbd99fe6460abe39bc5d34a54 to your computer and use it in GitHub Desktop.

Select an option

Learn more about clone URLs
Save hinc/6b39f53fbd99fe6460abe39bc5d34a54 to your computer and use it in GitHub Desktop.
Download ZIP

Revisions

  1. David Heinemeier Hansson created this gist Mar 15, 2017.
    49 changes: 49 additions & 0 deletions dcp-converter.rb
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,49 @@
    #!/usr/bin/env ruby

    # Requires that you have ./bin/dcpTool from https://sourceforge.net/projects/dcptool/

    require 'rubygems'
    require 'bundler/setup'
    require 'nokogiri'

    input_camera_model = ARGV[0] || "LEICA Q (Typ 116)"
    output_camera_model = ARGV[1] || "LEICA M10"

    input_dir = ARGV[2] || "./input"
    output_dir = ARGV[3] || "./output"

    def convert_profile_name(profile_name, input_camera_model, output_camera_model)
    File.basename(profile_name.gsub(/#{input_camera_model.gsub(/\(/, "\\(").gsub(/\)/, "\\)")}/, output_camera_model), ".dcp")
    end

    def replace_camera_model(xml_profile_filename, output_camera_model)
    profile_doc = Nokogiri::XML(File.read(xml_profile_filename))
    profile_doc.xpath('//UniqueCameraModelRestriction').first.content = output_camera_model

    File.open(xml_profile_filename, "w+") { |file| file.write(profile_doc.to_xml) }
    end

    Dir.entries(input_dir).reject { |file| file =~ /^(\.|\.\.)$/ }.each do |existing_profile|
    converted_profile = convert_profile_name(existing_profile, input_camera_model, output_camera_model)
    existing_dcp_filename = File.join(input_dir, existing_profile)
    xml_filename = "#{File.join(output_dir, converted_profile)}.xml"

    decompile_command = "./bin/dcpTool -d '#{existing_dcp_filename}' '#{xml_filename}'"

    puts "Decompiling #{existing_dcp_filename} into XML"
    `#{decompile_command}`

    puts "Replacing camera model: #{input_camera_model} -> #{output_camera_model}"
    replace_camera_model(xml_filename, output_camera_model)


    converted_dcp_filename = "#{File.join(output_dir, converted_profile)}.dcp"
    recompile_command = "./bin/dcpTool -c '#{xml_filename}' '#{converted_dcp_filename}'"

    puts "Recompiling XML into #{converted_dcp_filename}"
    `#{recompile_command}`

    File.delete(xml_filename)

    puts
    end