Module: StateMate::Adapters::JSON

Defined in:
lib/state_mate/adapters/json.rb

Class Method Summary collapse

Class Method Details

.parse_key(key) ⇒ Object 



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# File 'lib/state_mate/adapters/json.rb', line 7

def self.parse_key key
  # use the same key seperation as Defaults
  StateMate::Adapters::Defaults.parse_key key
end

.read(key, options = {}) ⇒ Object 



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# File 'lib/state_mate/adapters/json.rb', line 12

def self.read key, options = {}
  filepath, key_segs = parse_key key

  contents = File.read(File.expand_path(filepath))

  value = JSON.load contents

  key_segs.each do |seg|
    value = if (value.is_a?(Hash) && value.key?(seg))
      value[seg]
    else
      nil
    end
  end

  value
end

.write(key, value, options = {}) ⇒ Object 



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# File 'lib/state_mate/adapters/json.rb', line 30

def self.write key, value, options = {}
  options = {
    'pretty' => true,
  }.merge options

  filepath, key_segs = parse_key key

  new_root = if key_segs.length > 1
    root = read filepath

    StateMate::Adapters::Defaults.hash_deep_write!(
      root,
      key_segs,
      value
    )

    root
  else
    value
  end

  content = if options['pretty']
    JSON.pretty_generate new_root
  else
    JSON.dump new_root
  end

  File.open(filepath, 'w') do |f|
    f.write content
  end
end