Contents

require "digest"
require "fileutils"

class Lono::Script
  class Build < Base
    # Only avaialble after script has been built.
    def self.scripts_name
      new.scripts_name
    end

    def run
      Lono::ProjectChecker.check
      reset
      if Dir["#{Lono.root}/app/scripts/*"].empty?
        puts "No detected app/scripts"
        return
      else
        puts "Detected app/scripts"
      end

      puts "Tarballing app/scripts folder to scripts.tgz"
      tarball_path = create_tarball
      save_scripts_info(tarball_path)
      puts "Tarball created at #{tarball_path}"
    end

    # Only avaialble after script has been built.
    def scripts_name
      IO.read(SCRIPTS_INFO_PATH).strip
    end

    def reset
      FileUtils.rm_f(SCRIPTS_INFO_PATH)
    end

    def create_tarball
      # https://apple.stackexchange.com/questions/14980/why-are-dot-underscore-files-created-and-how-can-i-avoid-them
      sh "cd app && dot_clean ." if system("type dot_clean > /dev/null")

      # https://serverfault.com/questions/110208/different-md5sums-for-same-tar-contents
      # Using tar czf directly results in a new m5sum each time because the gzip
      # timestamp is included.  So using:  tar -c ... | gzip -n
      sh "cd app && tar -c scripts | gzip -n > scripts.tgz" # temporary app/scripts.tgz file

      rename_with_md5!
    end

    # Apppend a md5 to file after it's been created and moves it to
    # output/scripts/scripts-[MD5].tgz
    def rename_with_md5!
      md5_path = "output/scripts/scripts-#{md5sum}.tgz"
      FileUtils.mkdir_p(File.dirname(md5_path))
      FileUtils.mv("app/scripts.tgz", md5_path)
      md5_path
    end

    def save_scripts_info(scripts_name)
      FileUtils.mkdir_p(File.dirname(SCRIPTS_INFO_PATH))
      IO.write(SCRIPTS_INFO_PATH, scripts_name)
    end

    # cache this because the file will get removed
    def md5sum
      @md5sum ||= Digest::MD5.file("app/scripts.tgz").to_s[0..7]
    end

    def sh(command)
      puts "=> #{command}"
      system command
    end

  end
end

Version data entries

8 entries across 8 versions & 1 rubygems

Version	Path
lono-4.1.0	lib/lono/script/build.rb
lono-4.0.6	lib/lono/script/build.rb
lono-4.0.5	lib/lono/script/build.rb
lono-4.0.4	lib/lono/script/build.rb
lono-4.0.3	lib/lono/script/build.rb
lono-4.0.2	lib/lono/script/build.rb
lono-4.0.1	lib/lono/script/build.rb
lono-4.0.0	lib/lono/script/build.rb