Class: Lyricli::Configuration

Inherits:

Object

• Object
• Lyricli::Configuration

show all

Defined in:

lib/lyricli/configuration.rb

Overview

Constant Summary

@@instance =

Configuration.new

Class Method Summary (collapse)

• + (Object) instance

  Ensure this is only called once.

Instance Method Summary (collapse)

• - (String, ...) [](key)

  Access configuration properties, loads config if needed beforehand.

• - (Object) []=(key, value)

  Assigns a new value to a configuration key, loads config if needed and saves it after updating.

• - (Object) delete(key)

  Deletes a key from the configuration, loads config if needed and saves it after deleting.

• - (Configuration) initialize constructor

  Defines the paths to the default and user configuration files.

• - (Object) load_config

  Loads the configuration from the user file, attempts to create it from defaults if it’s not present.

• - (Object) save_config

  Serializes the `@config` Hash to JSON and saves it to a file.

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# File 'lib/lyricli/configuration.rb', line 7

def initialize
  @config_path = "~/.lyricli.conf"
  @defaults_path = "defaults.json"
  @config = nil
end

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# File 'lib/lyricli/configuration.rb', line 17

def self.instance
  @@instance
end

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# File 'lib/lyricli/configuration.rb', line 25

def [](key)
  load_config unless @config
  @config[key]
end

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# File 'lib/lyricli/configuration.rb', line 36

def []=(key, value)
  load_config unless @config
  @config[key] = value
  save_config
end

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# File 'lib/lyricli/configuration.rb', line 46

def delete(key)
  load_config unless @config
  @config.delete(key)
  save_config
end

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# File 'lib/lyricli/configuration.rb', line 56

def load_config
  path = File.expand_path(@config_path)

  if File.exists?(path)
    file = File.new(path, "r")
    @config = MultiJson.decode(file.read)
  else
    load_default_config
  end
end

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# File 'lib/lyricli/configuration.rb', line 68

def save_config
  path = File.expand_path(@config_path)
  file = File.new(path, "w")
  file.print(MultiJson.encode(@config))
  file.close
end