Class: Normalizer

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

Instance Method Summary collapse

Constructor Details

#initialize(file, options = {}) ⇒ Normalizer

Returns a new instance of Normalizer.



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# File 'lib/normalizer.rb', line 2

def initialize(file, options = {})
	@source = file
	@options = options
	@env = environment

	parse
end

Instance Method Details

#parse ⇒ Object 



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# File 'lib/normalizer.rb', line 10

def parse
	content = File.read(@source)

	# Scan the content of the file, and search for *unique* variable names
	# that we need to do a search and replace for.
	#
	variables = content.scan(/\{\w+\}/).uniq

	variables.each do |var|
	  # Since the place holders are in the file like such {MY_VAR}, we can
	  # assume that the first character is the open bracket, and the last
	  # is the closing bracket so lets just trim those off.
	  #
	  env_var = var[1..-2]

	  if @env.key? env_var
	    content.gsub! var, @env[env_var].chomp

	  else
	    # NOTE: mdelaney
	    # I'm not too sure if we should fail, i.e. return a non zero, or just
	    # print out a message to the console. For the moment, we'll just print
	    # out a message to the console. Should we want to fail the build that's
	    # a trivial change to make.
	    #
	    puts format('WARNING: No such environment variable %s', env_var)
	  end
	end

	output_file = @options[:output] ||= @source
	File.write(output_file, content)
end