Module: StateMate::Adapters::NVRAM

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

Class Method Summary collapse

Class Method Details

.read(key, options = {}) ⇒ Object 



10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
 
# File 'lib/state_mate/adapters/nvram.rb', line 10

def self.read key, options = {}
  result = Cmds "nvram %{key}", key: key

  if result.error?
    if result.err.start_with? "nvram: Error getting variable"
      return nil
    end
    result.assert
  end

  if m = /^#{ key }\t(.*)\n$/.match(result.out)
    m[1]
  else
    raise binding.erb <<-BLOCK
      can't parse output for key <%= key.inspect %>:

        cmd: <%= result.cmd %>

        output: <%= result.out.inspect %>
    BLOCK
  end
end

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



33
34
35
36
37
38
39
 
# File 'lib/state_mate/adapters/nvram.rb', line 33

def self.write key, value, options = {}
  unless value.is_a? String
    raise "value must be a String, not #{ value.inspect }"
  end

  Cmds! "sudo nvram #{ key }='#{ value }'"
end