Class: Bonethug::Watcher

Inherits:
Object
  • Object
show all
Includes:
Digest, FileUtils
Defined in:
lib/bonethug/watcher.rb

Class Method Summary collapse

Class Method Details

.watch(type = nil, target = '.', watch_only = nil) ⇒ Object 



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# File 'lib/bonethug/watcher.rb', line 22

def self.watch(type = nil, target = '.', watch_only = nil)

  # create full path
  target = File.expand_path target

  # load config
  puts "Parsing Config..."
  unless conf = Conf.new.add(target + '/config/cnf.yml')
    puts "Couldn't find project configuration"
    return
  end

  # project type
  project_type = conf.get('deploy.project_type')

  # end now if its a rails project
  if ['rails','rails3'].include? project_type
    puts "Rails doesn't require watching"
    return
  end

  sass = []
  if sasses = conf.get('watch.sass')
    sasses.each do |index, watch|
      sass.push(src: watch.get('src','Array'), dest: watch.get('dest'), filter: watch.get('filter'), all_on_start: watch.get('onstart').to_bool, type: :sass)
    end
  end

  coffee = []
  if coffees = conf.get('watch.coffee')
    coffees.each do |index, watch|
      coffee.push(src: watch.get('src','Array'), dest: watch.get('dest'), filter: watch.get('filter'), all_on_start: watch.get('onstart').to_bool, type: :coffee)
    end
  end

  # concat doesn't support array based input just yet
  concat_js = []
  if js_concats = conf.get('watch.concat_js')
    js_concats.each do |index, watch|
      concat_js.push(src: watch.get('src'), dest: watch.get('dest'), filter: watch.get('filter','Array'), all_on_start: watch.get('onstart').to_bool, type: :concat_js)
    end
  end

  # concat doesn't support array based input just yet
  concat_css = []
  if css_concats = conf.get('watch.concat_css')
    css_concats.each do |index, watch|
      concat_css.push(src: watch.get('src'), dest: watch.get('dest'), filter: watch.get('filter','Array'), all_on_start: watch.get('onstart').to_bool, type: :concat_css)
    end
  end

  # uglify doesn't support array based input just yet
  uglify = []
  if uglifies = conf.get('watch.uglify')
    uglifies.each do |index, watch|
      uglify.push(src: watch.get('src','Array'), dest: watch.get('dest'), filter: watch.get('filter'), all_on_start: watch.get('onstart').to_bool, type: :uglify)
    end
  end

  # erb doesn't support array based input just yet
  erb = []
  if erbs = conf.get('watch.erb')
    erbs.each do |index, watch|
      erb.push(src: watch.get('src','Array'), dest: watch.get('dest'), filter: watch.get('filter'), all_on_start: watch.get('onstart').to_bool, type: :erb)
    end
  end

  # slim doesn't support aray based inputs just yet
  slim = []
  if slims = conf.get('watch.slim')
    slims.each do |index, watch|
      slim.push(src: watch.get('src','Array'), dest: watch.get('dest'), filter: watch.get('filter'), all_on_start: watch.get('onstart').to_bool, type: :slim)
    end
  end

  # combine the watches
  watches = coffee + sass + concat_js + concat_css + uglify + erb + slim

  # Generate Guardfile
  puts 'Generating Guardfile...'

  guardfile_content = ''
  watches.each do |watch|

    case watch[:filter].class.name
    when 'NilClass'
      watch_val = ''
    when 'String'
      watch_val = "'#{watch[:filter]}'"
    when 'Regexp'
      watch_val = watch[:filter].inspect
    when 'Array'
      watch_val = "%w(#{watch[:filter].join(' ')})"
    else
      raise "invalid filter type: " + watch[:filter].class.name
    end

    if watch[:filter].class.name == 'Array'
      filter = watch_val
    else
      filter = watch[:filter] ? "watch #{watch_val}" : ""
    end

    case type
    when 'sprockets'
      guardfile_content += "
        guard 'sprockets', :minify => true, :destination => '#{watch[:dest]}', :asset_paths => #{watch[:src].to_s}, :all_on_start => #{watch[:all_on_start].to_s} do
          #{filter}
        end
      "
    else
      if watch[:type] == :coffee
        guardfile_content += "
          guard :coffeescript, :output => '#{watch[:dest]}', :input => #{watch[:src].to_s}, :all_on_start => #{watch[:all_on_start].to_s} do
            #{filter}
          end
        "
      elsif watch[:type] == :sass
        guardfile_content += "
          guard :sass, :style => :compressed, :debug_info => true, :output => '#{watch[:dest]}', :input => #{watch[:src].to_s}, :all_on_start => #{watch[:all_on_start].to_s} do
            #{filter}
          end
        "
      elsif watch[:type] == :concat_css
        guardfile_content += "
          guard :concat, :output => '#{watch[:dest]}', :input_dir => '#{watch[:src]}', :type => 'css', :files => #{filter}, :all_on_start => #{watch[:all_on_start].to_s}
        "
      elsif watch[:type] == :concat_js
        guardfile_content += "
          guard :concat, :output => '#{watch[:dest]}', :input_dir => '#{watch[:src]}', :type => 'js', :files => #{filter}, :all_on_start => #{watch[:all_on_start].to_s}
        "
      elsif watch[:type] == :uglify
        guardfile_content += "
          guard 'uglify', :output => '#{watch[:dest]}', :input => #{watch[:src].to_s}, :all_on_start => #{watch[:all_on_start].to_s} do
            #{filter}
          end
        "
      elsif watch[:type] == :erb
        guardfile_content += "
          guard :erb, :debug_info => true, :output => '#{watch[:dest]}', :input => #{watch[:src].to_s}, :all_on_start => #{watch[:all_on_start].to_s} do
            #{filter}
          end
        "
      elsif watch[:type] == :slim
        guardfile_content += "
          guard :slim, :debug_info => true, :output => '#{watch[:dest]}', :input => #{watch[:src].to_s}, :all_on_start => #{watch[:all_on_start].to_s} do
            #{filter}
          end
        "
      end
    end

  end

  # save the guardfile
  guardfile = target + '/.bonethug/Guardfile'
  FileUtils.rm_rf guardfile
  File.open(guardfile,'w') do |file|
    file.puts guardfile_content
  end

  puts 'Starting Watch Daemon...'
  # guard 2.0.x polling fix
  # poll = RbConfig::CONFIG['target_os'] =~ /mswin|mingw|cygwin/i ? '--force-polling' : ''
  poll = ''
  cmd = 'bundle exec guard --debug ' + poll + ' --guardfile "' + target + '/.bonethug/Guardfile"'
  puts cmd
  exec cmd

end