Rails: shell command in controller

Question

I'm trying to run shell command with rake task of another project in rails controller:

def generate
  render json: `cd /Users/user/project && rvm use ruby-2.1.1@gemset && bundle exec rake users:build`
end

The problem is that not working for that task (nothing happening) but if I run rake routes for example it is running well.

@downvoter, how should I edit my question?

Pavel
– Pavel

2015-02-13 14:42:45 +00:00
Commented Feb 13, 2015 at 14:42 — Pavel
– Pavel, Commented Feb 13, 2015 at 14:42

Michelson · Accepted Answer · 2015-02-15 04:27:00Z

1

if you are running another ruby project, make sure you clean the current bundler environment before run command. Bundler provides an easy way to tackle this inconvenient by doing:

 Bundler.with_clean_env{   
    render json:  `cd /Users/user/project  && rvm use ruby-2.1.1@gemset && BUNDLE_GEMFILE=path/to/Gemfile bundle exec rake users:build`
 }

take note of BUNDLE_GEMFILE and Bundler.with_clean_env

Best!

edited Feb 15, 2015 at 4:27

answered Feb 13, 2015 at 14:45

Michelson

3512 silver badges12 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

Pavel Over a year ago

seems it's not working - Bundler.with_clean_env I need to run bundle install because gems not found

Michelson Over a year ago

are you using rvm or rbenv ? maybe you have to set the proper ruby version to run that command on that app

Pavel Over a year ago

I'm using rvm. I've updated my question - added choosing a ruby version with right gemset, but it's still not working - nothing happening

Michelson Over a year ago

set BUNDLE_GEMFILE option point to the Gemfile file. I've updated the example code

Ali Khan · Accepted Answer · 2015-02-13 15:26:30Z

0

Instead of issuing a system call, can you try this (place the following snippet in your controller file):

require 'rake'

Rake::Task["users:build"]

answered Feb 13, 2015 at 15:26

Ali Khan

591 silver badge9 bronze badges

3 Comments

Pavel Over a year ago

is it possible to run rake task which is from another project?

Ali Khan Over a year ago

@PavelBabin, since rake files are essentially ruby files, create a blank rake task file in your current project with the same name (as for users:build) and simply include the eternal rake task file in your rake task file.

Pavel Over a year ago

thanks for advice, but I need to run a rake task from directory of other project - this is the main problem

Collectives™ on Stack Overflow

Rails: shell command in controller

2 Answers 2

4 Comments

3 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

4 Comments

3 Comments

Your Answer

Sign up or log in

Post as a guest

Related