fill_sources_headers.rb

require 'optparse'
require 'xcodeproj'

options = {}
OptionParser.new do |opts|

  opts.banner = " This script fills \"Compile sources\" and add headers to the project section. \n
  Usage: fill_sources_headers.rb [options]"
  
  opts.on("-s [sources_path]", "--sources [sources_path]", "Path to the sources files (required)") do |sources_path|
    options[:sources_path] = sources_path
  end

  opts.on("-r [headers_path]", "--headers [headers_path]", "Path to the headers files (required)") do |headers_path|
    options[:headers_path] = headers_path
  end

  opts.on("-x [xcodeproj_path]", "--xcodeproj [xcodeproj_path]", "Path to xcodeproj container (required)") do |xcodeproj_path|
    options[:xcodeproj_path] = xcodeproj_path
  end

  opts.on("-h", "--help", "Show help") do
    puts opts
    exit
  end

end.parse!

if (!options[:xcodeproj_path])
  puts "Path to the .xcodeproj is required"
  exit 1
end

if (!options[:sources_path])
  puts "Path to the source files is required"
  exit 1
end

file_pbxproj = options[:xcodeproj_path]

if !(Dir.exists?(file_pbxproj))
  puts "Your project file couldn't be located."
  exit 1
end

headers = options[:headers_path]
sources = options[:sources_path]

project = Xcodeproj::Project.open(file_pbxproj)

#Using first target. If your project contains more targets make sure that the right one is selected
target = project.targets.first
headers_phase = target.headers_build_phase
source_build_phase = target.source_build_phase

#create new group for sources
sources_group_name = 'Sources'
sources_group = project.groups.find do |group|
  group.name == sources_group_name
end
if (!sources_group)
  sources_group = project.new_group(sources_group_name)
end

#create new group for headers
headers_group_name = 'Headers'
headers_group = project.groups.find do |group|
  group.name == headers_group_name
end
if (!headers_group)
  headers_group = project.new_group(headers_group_name)
end

imported_headers_count = 0;
Dir.glob(headers+"/*.h") do |file|
  file_reference = headers_group.files.find do |ref|
  ref.path == file
  end
  if (!file_reference)
    imported_headers_count+=1;
    file_reference = headers_group.new_file(file)
  end

end

imported_sources_count = 0;
Dir.glob(sources+"/**/*.c") do |file|
  file_reference  = sources_group.files.find do |ref|
    ref.path == file
  end
  if (!file_reference)
    imported_sources_count+=1
    file_reference = sources_group.new_file(file)
  end
  source_build_phase.add_file_reference(file_reference,avoid_duplicates: true)
end

project.save

puts "#{imported_sources_count} source files have been added!"
puts "#{imported_headers_count} headers files have been added!"
exit 0