Class: Foreplay::Engine

Inherits:
Object
  • Object
show all
Includes:
Foreplay
Defined in:
lib/foreplay/engine.rb

Defined Under Namespace

Classes: Remote, Role, Server, Step

Constant Summary collapse

DEFAULTS_KEY = 
'defaults'
CONFIG_FILE = 
"#{Dir.getwd}/config/foreplay.yml"

Constants included from Foreplay

INDENT, VERSION

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Foreplay

#terminate

Constructor Details

#initialize(e, f) ⇒ Engine

Returns a new instance of Engine.



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# File 'lib/foreplay/engine.rb', line 11

def initialize(e, f)
  @environment  = e
  @filters      = f
end

Instance Attribute Details

#environment ⇒ Object (readonly)

Returns the value of attribute environment.



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# File 'lib/foreplay/engine.rb', line 6

def environment
  @environment
end

#filters ⇒ Object (readonly)

Returns the value of attribute filters.



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# File 'lib/foreplay/engine.rb', line 6

def filters
  @filters
end

#mode ⇒ Object (readonly)

Returns the value of attribute mode.



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# File 'lib/foreplay/engine.rb', line 6

def mode
  @mode
end

Instance Method Details

#check ⇒ Object 



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# File 'lib/foreplay/engine.rb', line 21

def check
  @mode = :check
  execute
end

#deploy ⇒ Object 



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# File 'lib/foreplay/engine.rb', line 16

def deploy
  @mode = :deploy
  execute
end

#execute ⇒ Object 



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# File 'lib/foreplay/engine.rb', line 26

def execute
  # Explain what we're going to do
  puts "#{mode.capitalize}ing #{environment.dup.yellow} environment, "\
       "#{explanatory_text(filters, 'role')}, #{explanatory_text(filters, 'server')}"

  threads = []

  roles.each do |role, additional_instructions|
    next if role == DEFAULTS_KEY # 'defaults' is not a role
    next if filters.key?('role') && filters['role'] != role

    threads.concat Foreplay::Engine::Role.new(
      environment,
      mode,
      build_instructions(role, additional_instructions)
    ).threads
  end

  threads.each(&:join)

  puts mode == :deploy ? 'Finished deployment' : 'Deployment configuration check was successful'
end

#supermerge(hash, other_hash) ⇒ Object

Returns a new hash with hash and other_hash merged recursively, including arrays.

h1 = { x: { y: [4,5,6] }, z: [7,8,9] }
h2 = { x: { y: [7,8,9] }, z: 'xyz' }
h1.supermerge(h2)
#=> {:x=>{:y=>[4, 5, 6, 7, 8, 9]}, :z=>[7, 8, 9, "xyz"]}



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# File 'lib/foreplay/engine.rb', line 55

def supermerge(hash, other_hash)
  fail 'supermerge only works if you pass two hashes. '\
    "You passed a #{hash.class} and a #{other_hash.class}." unless hash.is_a?(Hash) && other_hash.is_a?(Hash)

  new_hash = hash.deep_dup.with_indifferent_access

  other_hash.each_pair do |k, v|
    tv = new_hash[k]

    if tv.is_a?(Hash) && v.is_a?(Hash)
      new_hash[k] = supermerge(tv, v)
    elsif tv.is_a?(Array) || v.is_a?(Array)
      new_hash[k] = Array.wrap(tv) + Array.wrap(v)
    else
      new_hash[k] = v
    end
  end

  new_hash
end