arcenc

#!/usr/bin/bash
# arcenc script ... to encrypt and compress a file or directory
# creating a xxxx.tar.gz.gpg encrypted archive. Use arcdec script
# plugin to reverse the process, providing appropriate password used
# during encryption in this plugin.
#
# Author: ArchieLinux / No rights reserved.
# Feel free to distribute and use in any form with or without
# modification provided that no warranty is provided. 
# Use at your own risk.
#
# To incorporate into your nnn config file, consider adding
# a line such as:
#
# export NNN_PLUG='1:arcenc;2:arcdec; ... other plugins...
#
#... then invoke plugin access (e.g., ";") and select "1" or "2" for
# "arcenc" (archive & encryption) or "arcdec" (decryption and 
# unpacking of the archive), respectively.
#
clear

echo "************************************************"
echo "* Given a file or directory name, this script  *"
echo "* will compress then encrypt (AES-128) files   *"
echo "* into a secure archive: ________.tar.gz.gpg   *"
echo "************************************************"
echo 
echo "FILE or DIRECTORY to archive (if not in current"
echo "directory provide path)..."
echo -n "-> "
    read -r ArchiveSource
    echo
    if [ -d $ArchiveSource ]; then
	   echo "Will prepare archive of SUBDIRECTORY as source: $PWD/$ArchiveSource"
   elif [ -f $ArchiveSource ]; then
           echo "Will prepare archive of FILE as source: $ArchiveSource"
   else
           echo "Cannot find '$ArchiveSource' as either directory or file."
           echo "within $PWD. Please check source path." 
	   echo "Press enter to continue..."
	   read -r null
           exit
    fi
    echo
    echo "Please provide name of archive to be created in $PWD"
    echo "(provide base name only; extensions 'tar.gz.gpg' will be added)"
    echo -n "-> "
    read -r NewArchive

    if [ -e $NewArchive.tar.gz.gpg ]; then
	echo
        echo "File '$NewArchive.tar.gz.gpg' already exists." 
	echo -n "Do you wish to overwrite?"
	read -p "(Y/n) -> " answer
	case $answer in

		Y | y)
		# Permission to overwrite; will proceed below
		echo
		;;

		*)
		# Permission denied; will exit
		echo "Okay, will now exit instead..."
		exit
		;;
	esac 

	#Apparently these next 2 lines are not needed with tar/gpg
	#echo "Overwriting $NewArchive.tar.gz.gpg ..."
	#rm -rf $PWD/$NewArchive.tar.gz.gpg
	echo 
    fi
    echo "Will create encrypted archive $NewArchive.tar.gz.gpg within $PWD"
    echo  
    echo "Ready to encrypt with password protection."
    echo "Files to be included in archive will be listed below."
    echo 
  tar -cvzf - $ArchiveSource | gpg -c > $NewArchive.tar.gz.gpg  
    echo
    echo "Encrypted file $NewArchive.tar.gz.gpg now available in $PWD"
    echo "Please press enter to continue..."  
     read -r null