Class: Courseware::Composer

Inherits:
Object
  • Object
show all
Defined in:
lib/courseware/composer.rb

Instance Method Summary collapse

Constructor Details

#initialize(config, repository = nil) ⇒ Composer

Returns a new instance of Composer.



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# File 'lib/courseware/composer.rb', line 2

def initialize(config, repository=nil)
  @config     = config
  @repository = repository || Courseware::Repository.new(config)

  return if @config[:presfile] == :none

  if File.exists?(@config[:presfile])
    @showoff    = JSON.parse(File.read(@config[:presfile]))
    @coursename = @showoff['name']
    @prefix     = @showoff['name'].gsub(' ', '_')
  end
end

Instance Method Details

#build(subject) ⇒ Object 



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# File 'lib/courseware/composer.rb', line 15

def build(subject)
  courselevel!

  if subject.nil?
    display_tags
    raise 'Please re-run this task with a list of tags to include.'
  end
  raise 'Please re-run this task with a list of tags to include.' unless subject.is_a? Array
  raise 'No master section defined in `showoff.json`' unless @showoff.include? 'master'

  newsections = {}
  @showoff['master'].each do |section|
    next if (section['tags'] & subject).empty?

    name = section['name']
    newsections[name] = section['content']
  end

  name = Courseware.question('What would you like to call this variant?', 'custom').gsub(/\W+/, '_')
  desc = Courseware.question("Enter a customized description if you'd like:")

  @showoff.delete 'tags'
  @showoff.delete 'master'
  @showoff['name']        = name if name
  @showoff['description'] = desc if desc
  @showoff['sections']    = newsections

  File.write("#{name}.json", JSON.pretty_generate(@showoff))
  puts "Run your presentation with `showoff serve -f #{name}.json` or `rake present`"
end

#package(subject) ⇒ Object 



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# File 'lib/courseware/composer.rb', line 46

def package(subject)
  courselevel!
  on_release!
  pristine!

  content   = JSON.parse(`showoff info -jf #{subject}`)
  variant   = File.basename(subject, '.json')
  current   = @repository.current(@coursename)

  if variant == 'showoff'
    output  = @prefix
  else
    output  = "#{@prefix}-#{variant}"
  end

  FileUtils.rm_rf "build/#{@prefix}"
  FileUtils.mkdir_p "build/#{@prefix}"
  FileUtils.cp subject, "build/#{@prefix}/showoff.json"

  # Copy in only the slides used
  content['files'].each do |path|
    FileUtils.mkdir_p "build/#{@prefix}/#{File.dirname(path)}"
    FileUtils.cp path, "build/#{@prefix}/#{path}"
  end

  # Copy in only the images used
  content['images'].each do |path|
    FileUtils.mkdir_p "build/#{@prefix}/#{File.dirname(path)}"
    FileUtils.cp path, "build/#{@prefix}/#{path}"
  end

  # support is special
  FileUtils.cp_r '../_support', "build/#{@prefix}/_support"
  FileUtils.rm_f "build/#{@prefix}/_support/*.pem"
  FileUtils.rm_f "build/#{@prefix}/_support/*.pub"
  FileUtils.rm_f "build/#{@prefix}/_support/aws_credentials"

  # duplicate from cwd to build/variant everything not already copied
  Dir.glob('**{,/*/**}/*').each do |path|
    next if path.start_with? 'build'
    next if path.start_with? 'stats'
    next if path.start_with? 'pdf'
    next if path.start_with? '_images'
    next if path == 'user.js'
    next if path =~ /^\w+.json$/
    next if File.exist? "build/#{@prefix}/#{path}"

    FileUtils.mkdir_p "build/#{@prefix}/#{File.dirname(path)}" unless File.directory?(path)
    FileUtils.ln_s File.expand_path(path), "build/#{@prefix}/#{path}"
  end

  system("tar -C build --dereference -czf build/#{output}-#{current}.tar.gz  #{@prefix}")
  if Courseware.confirm("Would you like to clean up the output build directory?")
    FileUtils.rm_rf "build/#{@prefix}"
  end
end