IOError: closed stream when saving to PNG

[bfoz]

Saving example.psd to a PNG throws an error, however the image appears to be generated correctly despite the error. Error output is below.

Here's my ruby version:
09:32 bfoz@nancy-dt:test$ ruby --version
ruby 1.9.3p448 (2013-06-27 revision 41675) [x86_64-darwin12.4.0]

Here's the error:

09:10 bfoz@nancy-dt:test$ irb

require 'psd'
true
psd = PSD.new 'example.psd'

<PSD:0x007fe09418ff70 @file=#PSD::File:example.psd, @opts={:parse_image=>false, :parse_layer_images=>false}, @Header=nil, @resources=nil, @layer_mask=nil, @parsed=false>

psd.image.save_as_png 'example.png'
IOError: closed stream
from /Users/bfoz/.rvm/gems/ruby-1.9.3-p448/gems/awesome_print-1.1.0/lib/awesome_print/formatter.rb:191:in directory?' from /Users/bfoz/.rvm/gems/ruby-1.9.3-p448/gems/awesome_print-1.1.0/lib/awesome_print/formatter.rb:191:inawesome_file'
from /Users/bfoz/.rvm/gems/ruby-1.9.3-p448/gems/awesome_print-1.1.0/lib/awesome_print/formatter.rb:26:in format' from /Users/bfoz/.rvm/gems/ruby-1.9.3-p448/gems/awesome_print-1.1.0/lib/awesome_print/inspector.rb:137:inunnested'
from /Users/bfoz/.rvm/gems/ruby-1.9.3-p448/gems/awesome_print-1.1.0/lib/awesome_print/inspector.rb:104:in awesome' from /Users/bfoz/.rvm/gems/ruby-1.9.3-p448/gems/awesome_print-1.1.0/lib/awesome_print/core_ext/kernel.rb:10:inai'
from /Users/bfoz/.rvm/gems/ruby-1.9.3-p448/gems/awesome_print-1.1.0/lib/awesome_print/core_ext/kernel.rb:15:in ap' from /Users/bfoz/.rvm/gems/ruby-1.9.3-p448/gems/awesome_print-1.1.0/lib/awesome_print/inspector.rb:31:inoutput_value'
from /Users/bfoz/.rvm/rubies/ruby-1.9.3-p448/bin/irb:16:in `

'

[meltingice]

The reason it's still outputting an image is because it's an issue with the awesome_print gem, not PSD.rb. It looks like awesome_print is integrated into IRB such that it replaces the default printer. It's attempting to read the PNG file contents, but the file has been closed by ChunkyPNG, thus causing an error.

If you want to avoid the error in the console, you can do something like:

psd.image.save_as_png('example.png') and false