Class: StackMaster::ParameterLoader

Inherits:
Object
  • Object
show all
Defined in:
lib/stack_master/parameter_loader.rb

Constant Summary collapse

COMPILE_TIME_PARAMETERS_KEY = 
'compile_time_parameters'

Class Method Summary collapse

Class Method Details

.create_compile_time_parameters(parameters) ⇒ Object 



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# File 'lib/stack_master/parameter_loader.rb', line 40

def self.create_compile_time_parameters(parameters)
  (parameters[COMPILE_TIME_PARAMETERS_KEY] || parameters[COMPILE_TIME_PARAMETERS_KEY.camelize] || {}).deep_dup
end

.create_template_parameters(parameters) ⇒ Object 



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# File 'lib/stack_master/parameter_loader.rb', line 34

def self.create_template_parameters(parameters)
  parameters.deep_dup.tap do |parameters_clone|
    parameters_clone.delete(COMPILE_TIME_PARAMETERS_KEY) || parameters_clone.delete(COMPILE_TIME_PARAMETERS_KEY.camelize)
  end
end

.load(parameter_files) ⇒ Object 



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# File 'lib/stack_master/parameter_loader.rb', line 8

def self.load(parameter_files)
  StackMaster.debug 'Searching for parameter files...'
  parameter_files.reduce({template_parameters: {}, compile_time_parameters: {}}) do |hash, file_name|
    parameters = load_parameters(file_name)
    template_parameters = create_template_parameters(parameters)
    compile_time_parameters = create_compile_time_parameters(parameters)

    merge_and_camelize(hash[:template_parameters], template_parameters)
    merge_and_camelize(hash[:compile_time_parameters], compile_time_parameters)
    hash
  end

end

.load_file(file_name) ⇒ Object 



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# File 'lib/stack_master/parameter_loader.rb', line 30

def self.load_file(file_name)
  YAML.load(File.read(file_name)) || {}
end

.load_parameters(file_name) ⇒ Object 



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# File 'lib/stack_master/parameter_loader.rb', line 24

def self.load_parameters(file_name)
  file_exists = File.exists?(file_name)
  StackMaster.debug file_exists ? "  #{file_name} found" : "  #{file_name} not found"
  file_exists ? load_file(file_name) : {}
end

.merge_and_camelize(hash, parameters) ⇒ Object 



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# File 'lib/stack_master/parameter_loader.rb', line 44

def self.merge_and_camelize(hash, parameters)
  parameters.each { |key, value| hash[key.camelize] = value }
end