lsConv

#!/bin/bash

#	lsConv - Files Lists Converter
#
#	Author: Gil Stolar
#       OUR ORIGINAL CODE THAT WAS WRITTEN BY THE SECOPX LTD TEAM IS RELEASED UNDER GPL3!        
#       Copyright (C) 2021 Secopx.com

VERSION="1.0"

TMPFILE="tmp_list1.tmp"
TMPFILE2="tmp_list2.tmp"
POS=()

while [[ $# -gt 0  ]] 
do
opt="$1"
case $opt in
	-re|--regex)
		REGEX=1
		shift
		;;
	-js|--json)
		JSON=1
		shift
		;;
	-f|--file)
		INPUT_FILE="$2"
                shift
                shift
                ;;
	-d|--directory)
		DIRECTORY="$2"
		shift
                shift
                ;;
	-r|--recursive)
		RECURSE="1"
		shift
		;;
	-o|--output-file)
		OUTPUT_FILE="$2"
		shift
		shift
		;;
	-h|--help)
		HELP=1
		shift
		shift
		;;
	-v|--version)
                echo "$VERSION"
                exit
		shift
                ;;
	*)    # unknown option
    		POS+=("$1") # save it in an array for later
    		shift
		;;
esac
done

set -- "${POS[@]}" # restore positional parameters
if [[ -n $1 ]]; then echo "ERROR: Invalid option:"; tail -1 "$1"; exit 0; fi

HELP_TXT="
usage: ./lsConv [-f | --file <path>] [-d | --directory <path>] 
		[-r | --recursive] [-re | --regex] [-js | --json]
		[-o | --output <path>]
		[-h | --help] 

Converts a list of files from a directory or a text file to a chosen format

  -d, --directory	converts files from selected folder, -d <path>
  -f, --file		converts files listed in a file, -f <path> 
  			  (supports * wildcard)
  -js, --json		converts list to json format 
  -o, --output-file	prints converted list to a file, -o <path>	
  -r, --recursive	with -d, list all files in sub-folders
  -re, --regex		converts list to regex
  -h, --help		display this help and exit
  -v, --version  	output version information and exit
"
function print_help(){
	printf "\n${HELP_TXT}\n\n"
	exit 0
}

#function check_cmd_params(){
#	if [ ! -f $1 ]; then echo "ERROR: File not exists"; exit 0; fi
#        if [ "$1" == ""  ]; then echo "ERROR: Missing argument: path to file."; print_help; fi
#}


if [[ $HELP ]]; then print_help; fi

## Initialize

#check_cmd_params ${INPUT_FILE}
if [[ $DIRECTORY ]];then 
	if [ -f $TMPFILE2 ];then touch ${TMPFILE2}; else echo "">$TMPFILE2; fi
	if [[ ! $RECURSE ]];then opts="-maxdepth 1"; fi
	find ${DIRECTORY} ${opts} -type f  >$TMPFILE2
	INPUT_FILE=${TMPFILE2}
fi	
if [ -f $TMPFILE ];then touch ${TMPFILE}; else echo "">$TMPFILE; fi
fnList=$(< ${INPUT_FILE})
echo "$fnList" > $TMPFILE


if [[ $REGEX ]]; then
	sed -i -e 's/^/\|/' $TMPFILE
	sed -i -e '1s/^.//' $TMPFILE
	sed -i -e "s/[\!\@\#\$\%\^\&\(\)\-\/\|\.]/\\\&/g" $TMPFILE
	sed -i -e "s/\*/.*/" $TMPFILE
	output=$(cat $TMPFILE)
	output="${output//$'\n'/}"
fi


if [[ $JSON ]]; then
	if [[  $REGEX ]];then
		printf "${output}" >$TMPFILE
		output='{"files_list": ["'
		sed -i -e 's/|/","/g' $TMPFILE
		output+="$(< $TMPFILE)\"]}"
		printf "${output}\n"
		exit	
	else	
		output='{"files_list": ['
		while read fn; do output+="\"${fn}\",";	done <$TMPFILE
		output=${output::-1}	
		output+=']}'
	fi
fi



## Proccess output to a file or print to stdout

if [ $OUTPUT_FILE ]; then
	if [ -f $OUTPUT_FILE ];then touch ${OUTPUT_FILE}; else echo "">$OUTPUT_FILE; fi
	printf "${output}" > $OUTPUT_FILE
else
	printf "${output}\n"
fi

rm $TMPFILE 
if [ -f $TMPFILE2 ]; then rm $TMPFILE2; fi
#EOF