#!/usr/bin/env bash

file=${1}
# Should only be run on clean_files.txt
if [ "${file}" != "clean_files.txt" ] 
     then
	echo "Please run this script on clean_files.txt only!"
	exit 1
fi

function compare_lines() 
{
	############ STACK_TRACE_BUILDER #####################
	Function_Name="${FUNCNAME[0]}"
	Function_PATH="${Function_PATH}/${Function_Name}"
	######################################################
	prev=""
	while read -r line; do
		# Skip unimportant lines
		[[ ${line} =~ "#" ]] && continue
		[[ ${line} == "" ]] && continue
		# Actual check
		if [[ ${prev} > ${line} ]] 
     then
			echo "${line} should be before ${prev}"
			exit 1
		fi
		prev="${line}"
	done <<< "${1}"
	
	############### Stack_TRACE_BUILDER ################
	Function_PATH="$( dirname ${Function_PATH} )"
	####################################################
}

# We compare using the legacy way
shopt -s compat31

# Test root files
compare_lines "$(grep -v "/" "$file")"

# Test root directory
compare_lines "$(grep "/$" "$file")"

# Test non root directories
compare_lines "$(grep "/." "$file")"

shopt -u compat31
# Yay, all good!
exit 0