feed_seeder.rb

# Sample usage
# cd to book folder
# ruby feed_seeder.rb && dropcaster > index.rss && aws s3 sync . "s3://audiobooks-rss/My Book Name" --acl public-read

require 'colorize'
require 'optparse'

DEFAULT_DESCRIPTION = "Books are cool"
DEFAULT_IMAGE = "https://pbs.twimg.com/profile_images/378800000448533787/c32fb13e160ee7cd17848e8cacbbcfc5_400x400.jpeg"
DEFAULT_PATH = "."
DOMAIN = "https://s3.amazonaws.com"
BUCKET = "audiobooks-rss"

def write_to_file(path, string)
  File.write(path, string)
end

def read_arguments
  args = {
    description: DEFAULT_DESCRIPTION,
    image_url: DEFAULT_IMAGE,
    path: DEFAULT_PATH,
  }

  OptionParser.new do |opts|
    opts.banner = "Usage: example.rb [options]"

    opts.on("-d", "--description DESCRIPTION", "An optional description for the book") { |n| args[:description] = n }
    opts.on("-i", "--image IMAGE", "An optional image url for the book")               { |n| args[:image_url] = n }
    opts.on("-p", "--path PATH", "The path of the folder to create a feed of")         { |n| args[:path] = n }
    opts.on("-h", "--help", "Prints this help") do
      puts opts
      exit
    end
  end.parse!

  args
end

def format_title(title, separator)
  title.gsub(/\b('?[a-z])/) { $1.capitalize }
       .split(" ")
       .join(separator)
end

def generate_url(title, file_format, suffix)
  if file_format.to_s.empty?
    file_format = format_title(title, " ")
  end
  formatted_title = format_title(title, "+")
  folder = formatted_title
  path = "#{file_format}-#{suffix}.mp3"

  [ DOMAIN, BUCKET, folder, path ].join("/")
end

def generate_template(title, file_url, image_url, description)
return %Q(
:title: '#{title}'

:subtitle: 'Subtitles are useful'

:url: '#{file_url}'

:language: 'en-us'

:copyright: '© mergesort'

:author: 'NYPL Books'

# iTunes prefers square .jpg images that are at least 600 x 600 pixels
#
# If the URL does not start with http: or https:, it will be prefixed with the channel url.
#
:image_url: '#{image_url}'

:description: '#{description}'

:owner:
:name: 'Joe Fabisevich'
:email: 'ireadeveryemail@fabisevi.ch'


:categories: ['Education']

:explicit: No

# Keywords
#
# Apple recommends to use not more than 12 keywords
#
:keywords: []
)
end

def get(prompt, optional = false)
  begin
    puts prompt
    msg = gets.chomp
  end while msg.to_s.empty? || optional
  msg
end

def start
  title           = get("Enter a title:".green)
  file_format     = get("Enter file format (optional):".blue, :optional)
  suffix          = get("Enter a suffix:".green)
  arguments       = read_arguments
  formatted_title = format_title(title, " ")
  url             = generate_url(title, file_format, suffix)

  channel_yml = generate_template(formatted_title, url, arguments[:image_url], arguments[:description])
  write_to_file("#{arguments[:path]}/channel.yml", channel_yml)
end

start