Contents

# encoding: UTF-8

require 'digest/sha1'

module Spontaneous
  module Media

    autoload :File, "spontaneous/media/file"

    include Spontaneous::Constants

    extend self

    def media_path(*args)
      ::File.join(Spontaneous.media_dir, *args)
    end

    @@upload_uid_lock  = Mutex.new
    @@upload_uid_index = 0

    def upload_index
      @@upload_uid_lock.synchronize do
        @@upload_uid_index = (@@upload_uid_index + 1) % 0xFFFFFF
      end
    end

    def upload_path(filename)
      time = Time.now.to_i
      dir = "#{time}.#{upload_index}"
      Spontaneous.cache_path("tmp", dir, filename)
    end

    # def to_urlpath(filepath)
    #   filepath.gsub(%r{^#{Spontaneous.media_dir}}, "/media")
    # end

    def to_filepath(urlpath)
      parts = urlpath.split("/")
      parts[1] = Spontaneous.media_dir
      ::File.join(*parts)
    end

    def to_filename(input)
      parts = input.strip.split(/\./)
      ext = parts.last
      name = parts[0..-2].join(DOT)
      name.gsub!(RE_QUOTES, EMPTY)
      name.gsub!(/[^\.A-Za-z0-9_-]+/, DASH)
      name.gsub!(RE_FLATTEN_REPEAT, DASH)
      name.gsub!(RE_FLATTEN_TRAILING, EMPTY)
      [name, ext].join(DOT)
    end


    def sha1(filepath)
      Digest::SHA1.file(filepath).hexdigest
    end

    alias_method :digest, :sha1

    def combine_shards(hashes, &block)
      hashes = hashes.split(',') unless hashes.is_a?(Array)
      shards = hashes.map { |hash| Spontaneous.shard_path(hash) }
      combined = Tempfile.new('shard')
      combined.binmode

      shards.each do |shard|
        ::File.open(shard, 'rb') do |part|
          while data = part.read(131072)
            combined.write(data)
          end
        end
      end
      combined.close

      if block_given?
        begin
          yield(combined)
        ensure
          combined.close!
        end
      else
        # caller's responsibility to close & delete tempfile
        combined
      end
    end

  end
end

Version data entries

6 entries across 6 versions & 1 rubygems

Version	Path
spontaneous-0.2.0.alpha7	lib/spontaneous/media.rb
spontaneous-0.2.0.alpha6	lib/spontaneous/media.rb
spontaneous-0.2.0.alpha5	lib/spontaneous/media.rb
spontaneous-0.2.0.alpha4	lib/spontaneous/media.rb
spontaneous-0.2.0.alpha3	lib/spontaneous/media.rb
spontaneous-0.2.0.alpha2	lib/spontaneous/media.rb