Module: Dklet::Util

Defined in:
lib/dklet/util.rb

Class Method Summary collapse

Class Method Details

.gen_password(len = 10) ⇒ Object

secure



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# File 'lib/dklet/util.rb', line 43

def gen_password(len = 10)
  SecureRandom.alphanumeric(len)
end

.host_ip ⇒ Object 



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# File 'lib/dklet/util.rb', line 21

def host_ip
  Socket.ip_address_list.find { |ai| ai.ipv4? && !ai.ipv4_loopback? }.ip_address
end

.host_os ⇒ Object 



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# File 'lib/dklet/util.rb', line 25

def host_os
  ::OS
end

.human_timestamp(t = Time.now) ⇒ Object 



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# File 'lib/dklet/util.rb', line 9

def human_timestamp(t = Time.now)
  t.strftime("%Y%m%d%H%M%S")
end

.on_mac? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dklet/util.rb', line 29

def on_mac?
  host_os.mac?
end

.single_line?(cmds) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dklet/util.rb', line 33

def single_line?(cmds)
  return false if cmds.is_a? Array
  cmds = cmds.chomp
  return false if cmds =~ /\n/
  return true if cmds =~ /^\s*(bash|sh)/ 
  return false if cmds =~ /.+;/
  true
end

.tmpfile_for(str, prefix: 'dklet-tmp') ⇒ Object 



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# File 'lib/dklet/util.rb', line 13

def tmpfile_for(str, prefix: 'dklet-tmp')
  file = Tempfile.new(prefix)
  file.write str
  file.close # save to disk
  # unlink清理问题：引用进程结束时自动删除？👍 
  file.path
end