R echoing not properly turned off

[sfromm-plm]

When I use r_package more than once, calls alternate between correctly and fully suppressing echoing from rinruby to allowing some echoing; something is being toggled on/off with each call.

I believe that libraries/default.rb should read

def r_package_installed?(package)
  require 'rinruby'
  r = RinRuby.new(:echo=>false)
  r.eval 'packages = installed.packages()[,1]'
  packages = r.pull 'packages'
  packages.include?(package)
end

See also this comment.

[ajongbloets]

I found that disabling the echo directly on the eval call also works. Just like how it's implemented in the install and remove methods in providers/package.rb. Also by creating a new RinRuby object, you are creating a new R instance and without closing the old instance (created during require 'rinruby') you are working with two R instances of which only 1 is used.

def r_package_installed?(package)
  require 'rinruby'
  R.eval 'packages = installed.packages()[,1]', false
  packages = R.pull 'packages'
  packages.include?(package)
end