heroku-releases-slug-ids v0.2.0
heroku-releases-slug-ids 
A node command line utility to copy Heroku slugs from one app to one or more other apps
This is valuable when you want the same code in different Heroku apps to partition your system (for example by country)
FOr details of the Heroku platform API see
Getting Started
Install the command line utility with: npm install -g heroku-releases-slug-ids
You must have an account on Heroku
You must provide the Heroku API key for your account in the environment variable HEROKU_API_TOKEN
You must provide the list of target apps in the environment variable TARGET_APPS
Documentation
This program is given the name of an application that you own on Heroku and optionally a release number
The default is to copy the most recent (highest) release
Errors
Some releases don't have slugs and this is reported as an error
If the requested release number is not present this is reported as an error
Examples
$ heroku-releases-slug-ids.js test-deploy-app
Copied slug 6b938191-f5a3-4033-a916-xyz to app test-deploy-xyz created new app version 10 Copied slug 6b938191-f5a3-4033-a916-xyz to app test-deploy-def created new app version 9
Contributing
In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using Grunt.
Release History
0.3.0 - fully functional for me ... not 1.0.0 as I haven't socialised this enough yet :)
License
Copyright (c) 2014 Ray McDermott
Licensed under the MIT license.