strategy (gem)

require 'strategy'

# Create a new plan and give it a name.
plan = Strategy.plan "Hokey Pokey"

# Create a new step and assign one action to it
step = Strategy.step "Put your right foot in"
step.action { puts "*puts right foot in*" }

# Add the created step to the execution plan
plan.add step

# Add a second step to the plan
step = Strategy.step "Take your right foot out"
step.action { puts "*takes right foot out*" }
plan.add step

# Add a third step. This step contains multiple actions. Technically, since we
# are dealing with ruby blocks, a single action could contain any amount of
# ruby code. This step demonstrates that a step can be added to more than once.
step = Strategy.step "Put your right foot in and shake it all about"
step.action { puts "*puts right foot in*" }
step.action { puts "*shakes it all about*" }
plan.add step

# Dump a text representation of the execution plan, allowing us to see what is
# going to happen before we execute it.
puts plan.describe

puts "\n<Enter> to execute"
gets

# Execute the plan
plan.execute!

puts "\n<Enter> to execute"
gets

# Plan execution can also accept a ruby block. For each step in the plan, just
# before the step is exeucted, the plan will yield the step number and the
# description to allow printing execution markers and whatnot.
plan.execute! { |num, desc| puts "\n==> Executing step #{num}: #{desc}" }