GPG encryption and decryption for lazy people, like me

gpg-decrypt.nemo_action

[Nemo Action]
Name=Decrypt
Comment=Decrypt files
Exec=/usr/local/bin/gpg-decrypt %F
Icon-Name=seahorse
Selection=notnone
Extensions=gpg
Quote=double
Terminal=true

gpg-decrypt.rb

#! /usr/bin/env ruby

# NAME          : GPG Decryption Tool
# DESCRIPTION   : Decrypt all .gpg files passed
# AUTHOR        : Madh93 (Miguel Hernandez)
# VERSION       : 0.0.1
# LICENSE       : GNU General Public License v3
# USAGE         : ruby gpg-decrypt.rb [files]

require 'io/console'
require 'ruby_gpg'

# Get files to decrypt
if (files = ARGV.grep(/\.gpg$/)).empty?
  puts 'No valid file passed!'
  exit
end

# Ask for passphrase
passphrase = nil
passphrase ||= STDIN.getpass('Passphrase: ').chomp

# Decrypt the files
files.each do |f|
  next unless File.file?(f)
  basefile = File.basename(f, '.gpg')

  if File.file?(basefile)
    puts "File: '#{basefile}' already exists. Skipping..."
  else
    RubyGpg.decrypt(f, passphrase)
    puts "File '#{f}' decrypted."
  end
end

puts 'All done!'

gpg-encrypt.nemo_action

[Nemo Action]
Name=Cifrar
Comment=Cifrar archivos
Exec=/usr/local/bin/gpg-encrypt %F
Icon-Name=seahorse
Selection=notnone
Extensions=nodirs
Quote=double

gpg-encrypt.rb

#! /usr/bin/env ruby

# NAME          : GPG Encryption Tool
# DESCRIPTION   : Encrypt all files passed
# AUTHOR        : Madh93 (Miguel Hernandez)
# VERSION       : 0.0.1
# LICENSE       : GNU General Public License v3
# USAGE         : ruby gpg-encrypt.rb [files]

require 'ruby_gpg'

# Get files to encrypt
if (files = ARGV.grep_v(/\.gpg$/)).empty?
  puts 'No valid file passed!'
  exit
end

# Ask for recipient
recipient = nil
unless recipient
  print 'Recipient: '
  recipient = $stdin.gets.chomp
end

# Encrypt the files
files.each do |f|
  next unless File.file?(f)

  if File.file?("#{f}.gpg")
    puts "File: '#{f}.gpg' already exists. Skipping..."
  else
    RubyGpg.encrypt(f, recipient)
    puts "File '#{f}' encrypted."
  end
end

puts 'All done!'

GPG_encryption_and_decryption.md

GPG encryption and decryption for lazy people

Requirements

gem install ruby_gpg

How to use

To encrypt files:

ruby gpg-encrypt.rb file1.jpg file2.odt

To decrypt files:

ruby gpg-encrypt.rb file1.jpg.gpg file2.odt.gpg

I recommend add these scripts into /usr/local/bin (it must be declared in $PATH):

mv gpg-encrypt.rb /usr/local/bin/gpg-encrypt && chmod +x /usr/local/bin/gpg-encrypt
mv gpg-decrypt.rb /usr/local/bin/gpg-decrypt && chmod +x /usr/local/bin/gpg-decrypt

Nemo actions (Optional)

To use these scripts through Nemo file manager (default file manager in Cinnamon desktop environment), it's only necessary add them into /home/$USER/.local/share/nemo/actions.