CI_VERSION = ‘0.7’.freeze CI_BASE = ‘ubuntu:16.10’.freeze CI_COMPILERS = [‘gcc-4.7’,

'gcc-4.8',
'gcc-4.9',
'gcc-5',
'gcc-6',
'clang-3.5',
'clang-3.6',
'clang-3.7',
'clang-3.8',
'clang-3.9'].freeze

def ci_image_tag(compiler)

compiler.tr('+', 'c').delete('-').delete('.')

end

def ci_docker_tag(compiler)

tag = ci_image_tag(compiler)
"registry.gitlab.com/dabroz/mruby:#{tag}_#{CI_VERSION}"

end

def run_cmd(cmd)

puts cmd
raise 'error' unless system cmd

end

desc ‘recreate docker images for GitLab builds’ task :gitlab_dockers do

CI_COMPILERS.each do |compiler|
  tag = ci_image_tag(compiler)
  filename = "Dockerfile.#{tag}"
  File.open(filename, 'wb') do |f|
    f << "# #{compiler} - #{tag}\n"
    f << "FROM #{CI_BASE}\n"
    f << "RUN apt-get update && apt-get install -y git ruby2.3 ruby2.3-dev bison\n"
    f << "RUN apt-get update && apt-get install -y binutils manpages\n"
    f << "RUN apt-get update && apt-get install -y #{compiler}\n"
    if compiler['gcc']
      f << "RUN apt-get update && apt-get install -y libx32#{compiler}-dev\n"
      f << "RUN apt-get update && apt-get install --no-install-recommends -y #{compiler}-multilib\n"
    end
    f << "RUN dpkg --add-architecture i386\n"
    f << "RUN apt-get update && apt-get install -y linux-libc-dev:i386\n"
    if compiler['clang']
      f << "RUN apt-get update && apt-get install --no-install-recommends -y libc6-dev-i386\n"
      f << "RUN apt-get update && apt-get install -y gcc gcc-multilib\n"
    end
  end
  docker_tag = ci_docker_tag(compiler)
  cmd1 = "docker build -t #{docker_tag} -f #{filename} ."
  cmd2 = "docker push #{docker_tag}"
  run_cmd cmd1
  run_cmd cmd2
  File.delete(filename)
end

end

desc ‘create build configurations and update .gitlab-ci.yml’ task :gitlab_config do

require 'yaml'

configs = []
[true, false].each do |mode_32|
  ['', 'MRB_USE_FLOAT'].each do |float_conf|
    ['', 'MRB_INT16', 'MRB_INT64'].each do |int_conf|
      ['', 'MRB_NAN_BOXING', 'MRB_WORD_BOXING'].each do |boxing_conf|
        ['', 'MRB_UTF8_STRING'].each do |utf8_conf|
          next if (float_conf == 'MRB_USE_FLOAT') && (boxing_conf == 'MRB_NAN_BOXING')
          next if (int_conf == 'MRB_INT64') && (boxing_conf == 'MRB_NAN_BOXING')
          next if (int_conf == 'MRB_INT16') && (boxing_conf == 'MRB_WORD_BOXING')
          next if (int_conf == 'MRB_INT64') && (boxing_conf == 'MRB_WORD_BOXING') && mode_32
          env = [float_conf, int_conf, boxing_conf, utf8_conf].map do |conf|
            conf == '' ? nil : "-D#{conf}=1"
          end.compact.join(' ')
          bit = mode_32 ? '-m32 ' : ''
          _info = ''
          _info += mode_32 ? '32bit ' : '64bit '
          _info += float_conf['USE'] ? 'float ' : ''
          _info += int_conf['16'] ? 'int16 ' : ''
          _info += int_conf['64'] ? 'int64 ' : ''
          _info += boxing_conf['NAN'] ? 'nan ' : ''
          _info += boxing_conf['word'] ? 'word ' : ''
          _info += utf8_conf['UTF8'] ? 'utf8 ' : ''
          _info = _info.gsub(/ +/, ' ').strip.tr(' ', '_')
          configs << { '_info' => _info, 'CFLAGS' => "#{bit}#{env}", 'LDFLAGS' => bit.strip.to_s }
        end
      end
    end
  end
end
path = './.gitlab-ci.yml'
data = YAML.load_file(path)
data.keys.select do |key|
  key.start_with? 'Test'
end.each do |key|
  data.delete(key)
end
CI_COMPILERS.each do |compiler|
  configs.each do |config|
    name = "Test #{compiler} #{config['_info']}"
    hash = {
      'CC' => compiler,
      'CXX' => compiler.gsub('gcc', 'g++').gsub('clang', 'clang++'),
      'LD' => compiler
    }
    hash = hash.merge(config)
    hash.delete('_info')
    data[name] = {
      'stage' => 'test',
      'image' => ci_docker_tag(compiler),
      'variables' => hash,
      'script' => 'env; ./minirake --verbose all test'
    }
  end
end
File.open(path, 'w') { |f| YAML.dump(data, f) }

end