Class: Drum::FileService

Inherits:
Service show all
Includes:
Log, YAMLUtils
Defined in:
lib/drum/service/file.rb

Overview

A service that reads/writes playlists to/from YAML files.

Instance Method Summary collapse

Methods included from Log

#log

Methods included from YAMLUtils

#from_yaml

Instance Method Details

#download(playlist_ref) ⇒ Object 



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# File 'lib/drum/service/file.rb', line 43

def download(playlist_ref)
  base_path = playlist_ref.resource_location

  if base_path.directory?
    Dir.glob("#{base_path}/**/*.{yaml,yml}").map do |p|
      path = Pathname.new(p)
      playlist = Playlist.deserialize(from_yaml(path.read))
      playlist.path = path.relative_path_from(base_path).parent.each_filename.to_a
      playlist
    end
  else
    [Playlist.deserialize(from_yaml(base_path.read))]
  end
end

#name ⇒ Object 



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# File 'lib/drum/service/file.rb', line 15

def name
  'file'
end

#parse_ref(raw_ref) ⇒ Object 



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# File 'lib/drum/service/file.rb', line 19

def parse_ref(raw_ref)
  if raw_ref.is_token
    return nil
  end

  raw_path = if raw_ref.text.start_with?('file:')
    URI(raw_ref.text).path
  else
    raw_ref.text
  end

  path = Pathname.new(raw_path)
  Ref.new(self.name, :any, path)
end

#remove(playlist_ref) ⇒ Object 



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# File 'lib/drum/service/file.rb', line 34

def remove(playlist_ref)
  path = playlist_ref.resource_location
  if path.directory?
    raise 'Removing directories is not supported!'
  end
  log.info "Removing #{path}..."
  path.delete
end

#upload(playlist_ref, playlists) ⇒ Object 



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# File 'lib/drum/service/file.rb', line 58

def upload(playlist_ref, playlists)
  base_path = playlist_ref.resource_location

  playlists.each do |playlist|
    path = base_path
    dict = playlist.serialize

    # Strip path from serialized playlist
    dict.delete('path')

    if !path.exist? || path.directory?
      unless playlist.path.empty?
        path = path / playlist.path.map { |n| Pathname.new(n) }.reduce(:/)
      end

      playlist_path = lambda do |length|
        path / "#{playlist.name.kebabcase}-#{playlist.id[...length]}.yaml"
      end

      length = 6
      while playlist_path[length].exist? && Playlist.deserialize(from_yaml(playlist_path[length].read)).id != playlist.id
        length += 1
      end

      path = playlist_path[length]
    end

    path.parent.mkpath
    path.write(dict.to_yaml)
  end
end