method

find_pager_jruby

v2_2_9 - Show latest stable - 0 notes - Class: Driver

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What's this?

find_pager_jruby(pager) public

Finds the given pager for jruby. Returns an IO if pager was found.

Returns false if pager does not exist.

Returns nil if the jruby JVM doesn’t support ProcessBuilder redirection (1.6 and older).

Show source

# File lib/rdoc/ri/driver.rb, line 1013
  def find_pager_jruby pager
    require 'java'
    require 'shellwords'

    return nil unless java.lang.ProcessBuilder.constants.include? :Redirect

    pager = Shellwords.split pager

    pb = java.lang.ProcessBuilder.new(*pager)
    pb = pb.redirect_output java.lang.ProcessBuilder::Redirect::INHERIT

    @jruby_pager_process = pb.start

    input = @jruby_pager_process.output_stream

    io = input.to_io
    io.sync = true
    io
  rescue java.io.IOException
    false
  end

find_pager_jruby

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