From time to time, you may want to run some local Rails script on your Heroku app, and fortunately, you can do it easily with
heroku run command.
To run a local Rails script, you need to piped script content into
heroku run command, which actually runs
rails runner command with
- parameter, which by-turn mean to run the Ruby script read from stdin after loading the app:
$ cat rails_script.rb | heroku run "rails runner -"
To run some simple Ruby code next command could be used:
$ heroku run "rails runner 'Some.ruby(code)'"
This tiny post was inspired by Run a Local Rails Script on Heroku post, which proposes to do the same but with
rails console command. This solution also works, but as for me, use undesirable command for it.