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Contents
require "erb"
require "json"
module Ufo
class DSL
class TaskDefinition
attr_reader :task_definition_name
def initialize(dsl, task_definition_name, options={}, &block)
@dsl = dsl
@task_definition_name = task_definition_name
@block = block
@options = options
@project_root = @options[:project_root] || '.'
end
# delegate helper method back up to dsl
def helper
@dsl.helper
end
def build
instance_eval(&@block)
erb_template = IO.read(source_path)
ERB.new(erb_template).result(binding)
end
# at this point instance_eval has been called and source has possibly been called
def source(name)
@source = name
end
def variables(vars={})
vars.each do |var,value|
if instance_variable_defined?("@#{var}")
puts "WARNING: The instance variable @#{var} is already used internally with ufo. Please name you variable another name!"
end
instance_variable_set("@#{var}", value)
end
end
def source_path
if @source # this means that source has been called
path = "#{@project_root}/ufo/templates/#{@source}.json.erb"
check_source_path(path)
else
# default source path
path = File.expand_path("../../templates/default.json.erb", __FILE__)
puts "#{task_definition_name} template definition using default template: #{path}" unless @options[:mute]
end
path
end
def check_source_path(path)
unless File.exist?(path)
friendly_path = path.sub("#{@project_root}/", '')
puts "ERROR: Could not find the #{friendly_path} template. Are sure it exists? Check where you called source in ufo/task_definitions.rb"
exit 1
else
puts "#{task_definition_name} template definition using project template: #{path}" unless @options[:mute]
end
path
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems