feat: add import old version of mpw

lib/mpw/import/mpw_old.rb

@@ -0,0 +1,46 @@
+#!/usr/bin/ruby
+# MPW is a software to crypt and manage your passwords
+# Copyright (C) 2017  Adrien Waksberg <mpw@yae.im>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+require 'yaml'
+
+module MPW
+  module Import
+    # Import an export mpw file
+    # @param file [String] the file path to import
+    def self.mpw_old(file)
+      data = {}
+      YAML.load_file(file).each do |id, item|
+        url = ''
+        url += "#{item['protocol']}://" if item['protocol']
+        url += item['host']
+        url += ":#{item['port']}" if item['port']
+
+        data[id] = {
+          'comment'  => item['comment'],
+          'group'    => item['group'],
+          'otp'      => item['otp'],
+          'password' => item['password'],
+          'url'      => url,
+          'user'     => item['user']
+        }
+      end
+
+      data
+    end
+  end
+end

test/files/import-mpw_old.txt

@@ -0,0 +1,35 @@
+---
+1:
+  host: fric.com
+  user: 12345
+  group: Bank
+  password: secret
+  protocol: http
+  port:
+  otp_key: 
+  comment: Fric money money 
+  last_edit: 1487623641
+  created: 1485729356
+2:
+  host: server.com
+  user: sercret2
+  group:
+  password:
+  protocol:
+  port: 4222
+  otp_key: 
+  comment: My little server
+  last_edit: 1487623641
+  created: 1485729356
+3:
+  host: fric.com
+  user: username
+  group: Cloud
+  password:
+  protocol: ssh
+  port: 4333
+  otp_key: 
+  comment: bastion
+  last_edit: 1487623641
+  created: 1485729356
+