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require_relative 'config'
require_relative 'options'
require_relative 'log'
require_relative 'chained'
require_relative 'dslkeywords/file'
require_relative 'dslkeywords/symlink'
require_relative 'dslkeywords/touch'
require_relative 'dslkeywords/directory'
require_relative 'dslkeywords/given'
require_relative 'dslkeywords/notify'
# Ruby Configiration Management system
module RCM
# Here all starts
class DSL
attr_reader :id, :conds_met
def self.reset!
@@rcm_counter = -1
@@objs = {}
end
reset!
include Config
include Options
include Log
include Chained
class DuplicateResource < StandardError; end
def initialize(reset)
DSL.reset! if reset
@id = "dsl(#{@@rcm_counter += 1})"
@conds_met = true
@scheduled = []
yield self if block_given?
end
def to_s = @id
def evaluate! = @scheduled.each(&:evaluate!)
def <<(obj)
raise DuplicateResource, "#{obj.id} already declared!" if @@objs.key?(obj.id)
@scheduled << @@objs[obj.id] = obj
end
private
# Shared helper for all file-system keyword registrations.
# Returns the keyword symbol when called without a path (used by the
# Chained DSL to identify resource types without creating an object).
# Otherwise guards on @conds_met, instantiates klass, lets the caller
# configure the object, registers it, and returns it.
#
# The block is always yielded — callers that accept an optional DSL
# block must guard for nil themselves inside the closure, e.g.
# register_keyword(Touch, :touch, path) { |t| t.instance_eval(&block) if block }
def register_keyword(klass, name, path)
return name if path.nil?
return unless @conds_met
obj = klass.new(path)
yield obj
self << obj
obj
end
end
end
def configure(reset: false, &block)
RCM::DSL.new(reset) do |rcm|
rcm.info('Configuring...')
rcm.instance_eval(&block)
rcm.evaluate! if rcm.conds_met
end
end
def configure_from_scratch(&block) = configure(reset: true, &block)
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