class IOStreams::Writer

Attributes

output_stream[R]

Public Class Methods

file(file_name, original_file_name: file_name, **args, &block) click to toggle source

When a Writer supports streams, also allow it to simply support a file

# File lib/io_streams/writer.rb, line 14
def self.file(file_name, original_file_name: file_name, **args, &block)
  ::File.open(file_name, "wb") { |file| stream(file, original_file_name: original_file_name, **args, &block) }
end
new(output_stream) click to toggle source
# File lib/io_streams/writer.rb, line 25
def initialize(output_stream)
  @output_stream = output_stream
end
open(file_name_or_io, **args, &block) click to toggle source

For processing by either a file name or an open IO stream.

# File lib/io_streams/writer.rb, line 19
def self.open(file_name_or_io, **args, &block)
  file_name_or_io.is_a?(String) ? file(file_name_or_io, **args, &block) : stream(file_name_or_io, **args, &block)
end
stream(output_stream, original_file_name: nil, **args, &block) click to toggle source

When a Writer does not support streams, we copy the stream to a local temp file and then pass that filename in for this reader.

# File lib/io_streams/writer.rb, line 5
def self.stream(output_stream, original_file_name: nil, **args, &block)
  Utils.temp_file_name("iostreams_writer") do |file_name|
    count = file(file_name, original_file_name: original_file_name, **args, &block)
    ::File.open(file_name, "rb") { |source| ::IO.copy_stream(source, output_stream) }
    count
  end
end