Tonight, i ran into an issue with Heroku, where is was failing when installing a gem that i have within my :development bundler group:
group :development, :test, :cucumber do
gem ‘ruby-debug19′
end
As the clear solution was to prevent heroku installing gems that it didn’t need, i found this handy heroku command:
heroku config:add BUNDLE_WITHOUT=”development:test:cucumber”
Running this has told heroku to ignore gems that it doesn’t need, meaning the deploy worked fine. Further details: http://devcenter.heroku.com/articles/bundler
This resolves the heroku error:
Installing linecache19 (0.5.12) with native extensions /usr/ruby1.9.2/lib/ruby/1.9.1/rubygems/installer.rb:483:in `rescue in block in build_extensions’: ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)
