Ruby on Rails: How can I specify runner script environment

Question

I am using a shell script to run some runner scripts in my Ruby on Rails app. I need to run it on the production database, but the following:

#!/bin/bash
/usr/bin/ruby RAILS_ENV=production ../script/runner ../lib/tasks.rb

gives an error:

/usr/bin/ruby: No such file or directory -- RAILS_ENV=production (LoadError)

I have tried to force it in config/environment.rb

ENV['RAILS_ENV'] ||= 'production'

or even

ENV['RAILS_ENV'] = 'production'

but even with that it still runs in development environment.

Update: I can force the scripts to connect to the right database by editing the config/database.yml file, but I wonder what's the proper way of doing it.

Answer 1

If that's your command, the order of your arguments is your biggest problem.

/usr/bin/ruby RAILS_ENV=production ../script/runner ../lib/tasks.rb

Is different than.

/usr/bin/ruby ../script/runner ../lib/tasks.rb RAILS_ENV=production

The second example is looking for the file, the first one is setting a runtime variable while ruby interpreting it as the file you want to run.

Answer 2

If you redo your script like this:

#!/bin/bash
RAILS_ENV=production
/usr/bin/ruby ../script/runner ../lib/tasks.rb

...that will make it stick for the lifetime of the script. To make it stick for the lifetime of the shell's session, change it to

#!/bin/bash
export RAILS_ENV=production
/usr/bin/ruby ../script/runner ../lib/tasks.rb

Answer 3

You can set the environment variable like this :

RAILS_ENV=production /usr/bin/ruby ../script/runner ../lib/tasks.rb

Answer 4

The help on the command line for script/runner gives you your answer.

script/runner -e production Model.method