Class: BoxGrinder::TarballPlugin

Inherits:
BasePlugin
  • Object
show all
Includes:
Archive::Tar, FileUtils
Defined in:
lib/dw-boxgrinder-tarball-platform-plugin/tarball_plugin.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#appliance_config ⇒ Object

Returns the value of attribute appliance_config.



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# File 'lib/dw-boxgrinder-tarball-platform-plugin/tarball_plugin.rb', line 29

def appliance_config
  @appliance_config
end

#dir ⇒ Object

Returns the value of attribute dir.



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# File 'lib/dw-boxgrinder-tarball-platform-plugin/tarball_plugin.rb', line 29

def dir
  @dir
end

#log ⇒ Object

Returns the value of attribute log.



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# File 'lib/dw-boxgrinder-tarball-platform-plugin/tarball_plugin.rb', line 29

def log
  @log
end

#plugin_info ⇒ Object

Returns the value of attribute plugin_info.



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# File 'lib/dw-boxgrinder-tarball-platform-plugin/tarball_plugin.rb', line 29

def plugin_info
  @plugin_info
end

Instance Method Details

#after_init ⇒ Object 



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# File 'lib/dw-boxgrinder-tarball-platform-plugin/tarball_plugin.rb', line 31

def after_init
  @tar_name = "#{@appliance_config.name}.tgz"
  register_deliverable(
    :tarball => @tar_name
  )
  register_supported_os('centos', ["4", "5", "6"])
  register_supported_os('fedora', ["15", "16"])
end

#create_script(script_name, options = {}, &line_processor) ⇒ Object 



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# File 'lib/dw-boxgrinder-tarball-platform-plugin/tarball_plugin.rb', line 110

def create_script(script_name, options = {}, &line_processor)
  script = (options[:prefix] || "")
  for line in options[:lines]
    processed_line = line_processor.call line
    script << processed_line
  end
  script << (options[:suffix] || "")
  File.open(tmp_path(script_name), 'w') {|script_file|
    script_file.puts(script)
  }
  # record the names of all generated scripts, so we can add them to the tarball
  @created_scripts ||= []
  @created_scripts << script_name
end

#execute ⇒ Object 



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# File 'lib/dw-boxgrinder-tarball-platform-plugin/tarball_plugin.rb', line 40

def execute
  
  # Create a temporary directory to work from
  @working_dir = "#{@dir.tmp}"
  mkdir_p(@working_dir)
  
  # collect the RPMs and create an install_rpms.sh script to add to the payload
  install_rpms_script_name = "install_rpms.sh"
  create_script(install_rpms_script_name, :prefix => "yum install -y ", :lines => @appliance_config.packages) {|line|
    "#{line} "
  }
  
  # collect all post->base commands and create an install script to add to the payload
  install_post_script_name = "install_post.sh"
  create_script(install_post_script_name, :lines => @appliance_config.post['base']) {|line|
    "#{line}\n"
  }
  
  # create a root install script to install rpms and perform post
  install_all_script_name = "install.sh"
  create_script(install_all_script_name, :lines => [install_rpms_script_name, install_post_script_name]) {|line|
    "sh #{line}\n"
  }
  
  # Copy all files into the working directory to add to the payload
  for tgt_dir in @appliance_config.files.keys
    sources = @appliance_config.files[tgt_dir]
    for source in sources
      # convert '../xxx/yyy' to 'xxx/yyy'
      tgt_path_suffix = source.scan(/([^\.]+)[\\\/][^\\\/]+/)
      full_tgt_path = "#{tmp_path(tgt_dir)}/#{tgt_path_suffix}"
      mkdir_p(full_tgt_path)
      cp_r("#{source}", full_tgt_path)
    end
  end
  
  # create the tar in the build tmp directory, and it will be moved into the 
  # deliverables directory automatically
  root_tar_path = tmp_path('')
  @tar_name = "#{@appliance_config.name}.tgz"
  Dir.chdir(root_tar_path) do
    begin
      sgz = Zlib::GzipWriter.new(File.open(@tar_name, 'wb'))
      tar = Archive::Tar::Minitar::Output.new(sgz)
      uniq_entries = Set.new
      for tgt_dir in @appliance_config.files.keys
        # remove leading slashes for relative paths
        tgt_rel = "#{tgt_dir.scan(/[\\\/]*(.*)/)}"
        Find.find(tgt_rel) do |entry|
          if !uniq_entries.include?(entry)
            Minitar.pack_file(entry, tar) 
            uniq_entries << entry
          end
        end
      end
      # add all generated scripts
      for script_name in @created_scripts
        Minitar.pack_file(script_name, tar) 
      end
    ensure
      tar.close
    end
  end
  
end

#tmp_path(dir_name) ⇒ Object 



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# File 'lib/dw-boxgrinder-tarball-platform-plugin/tarball_plugin.rb', line 106

def tmp_path(dir_name)
  "#{@working_dir}/#{dir_name}"
end