Crash when trying to generate thumbnails in directory without permission

[danners]

Hey,
i run it by mistake on dir the user had no permission on.
I think the could should have catched it.
It crashed with the following trace:

remote: Error generating galleries: class or module required for rescue clause
remote: /home/simon/tmp/myrepo/_plugins/jekyll-gallery-generator.rb:168:in rescue in block in initialize' remote: /home/simon/tmp/myrepo/_plugins/jekyll-gallery-generator.rb:163:inblock in initialize'
remote: /home/simon/tmp/myrepo/_plugins/jekyll-gallery-generator.rb:125:in foreach' remote: /home/simon/tmp/myrepo/_plugins/jekyll-gallery-generator.rb:125:ininitialize'
remote: /home/simon/tmp/myrepo/_plugins/jekyll-gallery-generator.rb:218:in new' remote: /home/simon/tmp/myrepo/_plugins/jekyll-gallery-generator.rb:218:inblock in generate'
remote: /home/simon/tmp/myrepo/_plugins/jekyll-gallery-generator.rb:215:in foreach' remote: /home/simon/tmp/myrepo/_plugins/jekyll-gallery-generator.rb:215:ingenerate'
remote: /var/lib/gems/2.1.0/gems/jekyll-2.5.3/lib/jekyll/site.rb:280:in block in generate' remote: /var/lib/gems/2.1.0/gems/jekyll-2.5.3/lib/jekyll/site.rb:279:ineach'
remote: /var/lib/gems/2.1.0/gems/jekyll-2.5.3/lib/jekyll/site.rb:279:in generate' remote: /var/lib/gems/2.1.0/gems/jekyll-2.5.3/lib/jekyll/site.rb:50:inprocess'
remote: /var/lib/gems/2.1.0/gems/jekyll-2.5.3/lib/jekyll/command.rb:28:in process_site' remote: /var/lib/gems/2.1.0/gems/jekyll-2.5.3/lib/jekyll/commands/build.rb:56:inbuild'
remote: /var/lib/gems/2.1.0/gems/jekyll-2.5.3/lib/jekyll/commands/build.rb:34:in process' remote: /var/lib/gems/2.1.0/gems/jekyll-2.5.3/lib/jekyll/commands/build.rb:18:inblock (2 levels) in init_with_program'
remote: /var/lib/gems/2.1.0/gems/mercenary-0.3.5/lib/mercenary/command.rb:220:in call' remote: /var/lib/gems/2.1.0/gems/mercenary-0.3.5/lib/mercenary/command.rb:220:inblock in execute'
remote: /var/lib/gems/2.1.0/gems/mercenary-0.3.5/lib/mercenary/command.rb:220:in each' remote: /var/lib/gems/2.1.0/gems/mercenary-0.3.5/lib/mercenary/command.rb:220:inexecute'
remote: /var/lib/gems/2.1.0/gems/mercenary-0.3.5/lib/mercenary/program.rb:42:in go' remote: /var/lib/gems/2.1.0/gems/mercenary-0.3.5/lib/mercenary.rb:19:inprogram'
remote: /var/lib/gems/2.1.0/gems/jekyll-2.5.3/bin/jekyll:20:in <top (required)>' remote: /usr/local/bin/jekyll:23:inload'
remote: /usr/local/bin/jekyll:23:in `

'
remote: jekyll 2.5.3 | Error: Permission denied @ rb_sysopen - /home/simon/deployed_blog/photos/index.html

[ggreer]

Instead of crashing, what would you rather have it do? There's no way to recover from such an error.