module AmsLayout

File: config.rb
Purpose: Config command
Author: Jeff McAffee 2014-07-08
Copyright: Copyright © 2014, kTech Systems LLC. All rights reserved.
Website: ktechsystems.com

Constants

CONFIG_FILE_NAME
VERSION

Attributes

client[RW]

configuration[RW]

Public Class Methods

configure() { |configuration| ... } click to toggle source

Setup ams_layout configuration

Attempts to find and load a configuration file the first time it’s requested. If a config file cannot be found on disk, a default configuration object is created.

If a block is provided, the configuration object is yielded to the block after the configuration is loaded/created.

# File lib/ams_layout.rb, line 32
def self.configure
  if self.configuration.nil?
    unless self.load_configuration
      self.configuration = Configuration.new
    end
  end
  yield(configuration) if block_given?
end

find_config_path() click to toggle source

Walk up the directory tree from current working dir (pwd) till a file named .ams_layout is found.

Returns file path if found, nil if not.

# File lib/ams_layout.rb, line 48
def self.find_config_path
  path = Pathname(Pathname.pwd).ascend{|d| h=d+CONFIG_FILE_NAME; break h if h.file?}
end

load_configuration(path = nil) click to toggle source

Load the configuration from disk

Returns true if config file found and loaded, false otherwise.

# File lib/ams_layout.rb, line 83
def self.load_configuration(path = nil)
  # If no path provided, see if we can find one in the dir tree.
  if path.nil?
    path = find_config_path
  end

  return false if path.nil?
  return false unless path.exist?

  File.open(path, 'r') do |f|
    self.configuration = YAML.load(f)
    puts "configuration loaded from #{path}" if $debug
  end

  true
end

save_configuration(path = nil) click to toggle source

Write configuration to disk

Writes to current working dir (pwd) if path is nil

Returns path of emitted file

# File lib/ams_layout.rb, line 60
def self.save_configuration(path = nil)
  # If no path provided, see if we can find one in the dir tree.
  if path.nil?
    path = find_config_path
  end

  # Still no path? Use the current working dir.
  if path.nil?
    path = Pathname.pwd + CONFIG_FILE_NAME
  end

  path = Pathname(path).expand_path
  File.write(path, YAML.dump(configuration))

  path
end