Run Rails commands outside of console

Solution 1:

There are two main ways to run commands outside console:

1. Rake task which depends on :environment

2. rails runner (previously script/runner), eg:

   $ rails runner "query"
   

Both are pretty well documented on the rails guide: https://guides.rubyonrails.org/command_line.html#bin-rails-runner

btw: both of these methods will still take the same time as a console to fire up, but they are useful for non-interative tasks.

Solution 2:

Just pipe it in:

echo 'puts Article.count' | bundle exec rails c

It should now be a lot faster than when then the question was originally asked, because of Spring. It's not immediate, but still a lot faster than spinning up the whole app. Use this for the fast lane, it should run in under a second (assuming your required command is fast):

echo 'puts Article.count' | spring rails c

If you really want a single long-running process, you could easily do it by creating a controller action that simply runs whatever you POST to it, then send commands to it using curl behind an alias. The action would of course be completely insecure and should be triple-guarded against running anywhere near production, but it would be easy to setup.