Example of using Boson to call subcommands in one file

run_example.rb

# In example.rb
module Example
  extend self
  # This method does something
  def command1(arg1, arg2, options = {})

  end

  # This method does something else
  def command2(arg1, arg2, options = {})
  
  end

  
end

# In run_example.rb
require 'rubygems'
require 'boson'
Boson::Manager.load Boson::Commands::Core
Boson::Manager.load Example,
  :commands=>{
    'command1'=>{:options=>{:option1=>:string, :option2=>:string }, :args=>3},
    'command2'=>{:options=>{:option1=>:string, :option2=>:string }, :args=>3}
  }

if (cmd = ARGV.shift) && Boson.can_invoke?(cmd)
  begin
    Boson.full_invoke cmd, ARGV
  rescue ArgumentError
    puts "#{$!} for command '#{cmd}'"
  end
else
  puts "Command '#{cmd}' is invalid."
end

# The following would be possible from the command line
# ./run_example.rb command1 arg1 arg2 --option1=foo --option2=bar
# ./run_example.rb command1 -h
# ./run_example.rb command2 arg1 arg2 --option1=foo --option2=bar

# Handles edge cases
# no commands: ./run_example.rb
# invalid command: ./run_example.rb blah
# command with wrong number of arguments: ./run_example.rb command1