manage the stack for an app
stack show the list of available stacks
Example:
$ heroku stack === myapp Available Stacks bamboo-mri-1.9.2 bamboo-ree-1.8.7 * cedar
# File lib/heroku/command/stack.rb, line 20 def index validate_arguments! stacks_data = api.get_stack(app).body styled_header("#{app} Available Stacks") stacks = stacks_data.map do |stack| row = [stack['current'] ? '*' : ' ', stack['name']] row << '(beta)' if stack['beta'] row << '(deprecated)' if stack['deprecated'] row << '(prepared, will migrate on next git push)' if stack['requested'] row.join(' ') end styled_array(stacks) end
stack:migrate STACK prepare migration of this app to a new stack
Example:
$ heroku stack:migrate cedar -----> Preparing to migrate evening-warrior-2345 bamboo-mri-1.9.2 -> bamboo-ree-1.8.7 NOTE: You must specify ALL gems (including Rails) in manifest Please read the migration guide: http://devcenter.heroku.com/articles/bamboo -----> Migration prepared. Run 'git push heroku master' to execute migration.
# File lib/heroku/command/stack.rb, line 54 def migrate unless stack = shift_argument error("Usage: heroku stack:migrate STACK.\nMust specify target stack.") end display(api.put_stack(app, stack).body) end