Add option to let Kernel.#system raise error instead of returning false
I sometimes write code like:
system('git pull origin master') || raise('Failed to execute: git pull origin master') system('bundle check || bundle install') || raise('Failed to execute: bundle check || bundle install')
Using rake, we can simplify the above code to the following one, but there's no way to do that outside Rakefile. (Note that I just want to do the same thing as "bash -e", the error message is actually not important.)
sh 'git pull origin master' sh 'bundle check || bundle install'
If we add the following option, we can simplify such code even when we're not on a rake task. I'm not sure whether it's a good name or not though.
system 'git pull origin master', assert_status: true system 'bundle check || bundle install', assert_status: true # => RuntimeError: Command failed with status (1): bundle check || bundle install