Multi-Environment Vlad the Easy Way

Here is the clean and easy way to do multiple environments in vlad. Here is my deploy.rb:

set :application, "proj"
set :repository,  "https://subversion/proj/trunk"

task :beta do
  set :domain,    "localhost"
  set :deploy_to, "/tmp/proj_beta"
end

task :dev do
  set :domain,    "localhost"
  set :deploy_to, "/tmp/proj_dev"
end

task :prod do
  set :domain,    "localhost"
  set :deploy_to, "/tmp/proj_prod"
end

By not specifying domain or deploy_to globally you force the use of an environment whenever you invoke a vlad task:

% rake vlad:debug | egrep "(domain|deploy_to):"
rake aborted!
Please specify the deploy path via the :deploy_to variable

Here is what it looks like with one of the three defined environments:

% rake beta vlad:debug | egrep "(domain|deploy_to):"
domain: localhost
deploy_to: /tmp/proj_beta
% rake dev vlad:debug | egrep "(domain|deploy_to):"
domain: localhost
deploy_to: /tmp/proj_dev
% rake prod vlad:debug | egrep "(domain|deploy_to):"
domain: localhost
deploy_to: /tmp/proj_prod