Class: Amazon::Config

Inherits:
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  • Object
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Defined in:
lib/amazon.rb

Overview

A Class for dealing with configuration files, such as /etc/amazonrc and ~/.amazonrc.

Defined Under Namespace

Classes: ConfigError

Instance Method Summary collapse

Constructor Details

#initialize(config_str) ⇒ Config

A configuration may be passed in as a string. Otherwise, the files /etc/amazonrc and ~/.amazonrc are read if they exist and are readable.



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# File 'lib/amazon.rb', line 74

def initialize(config_str)
  locale = nil

  if config_str

	# We have been passed a config file as a string.
	#
    config_files = [ config_str ]
	config_class = File

  else
	puts 'No config file specified'

  end

  config_files.each do |cf|

	# We must determine whether the file is readable.
	#
	readable = File.exists?( cf ) && File.readable?( cf )

	if readable

	  Amazon.dprintf( 'Opening %s ...', cf ) if config_class == File

	  config_class.open( cf ) { |f| lines = f.readlines }.each do |line|
 line.chomp!

 # Skip comments and blank lines.
 #
 next if line =~ /^(#|$)/

 Amazon.dprintf( 'Read: %s', line )

 # Determine whether we're entering the subsection of a new locale.
 #
 if match = line.match( /^\[(\w+)\]$/ )
   locale = match[1]
   Amazon.dprintf( "Config locale is now '%s'.", locale )
   next
 end

 # Store these, because we'll probably find a use for these later.
 #
 begin
  	      match = line.match( /^\s*(\S+)\s*=\s*(['"]?)([^'"]+)(['"]?)/ )
   key, begin_quote, val, end_quote = match[1, 4]
   raise ConfigError if begin_quote != end_quote

 rescue NoMethodError, ConfigError
   raise ConfigError, "bad config line: #{line}"
 end

 if locale && locale != 'global'
   self[locale] ||= {}
   self[locale][key] = val
 else
   self[key] = val
 end

	  end
	else
	  puts "could not open file"
	end

  end

end