Script to generate flashcontents file from listfile.sig, required for building amino firmware.

generate_flashcontents.sh

#!/bin/bash

display_usage() {
	echo -e "\nUsage: $0 listfile.sig\n"
}

create_flashcontents_file() {
	# check if flashcontents already exist
	if [ -f flashcontents ]; then
		echo "File flashcontents already exists!"
		exit 1
	fi

	touch flashcontents

	# check whether file creation was succesful
	if [ ! -f flashcontents ]; then
		echo "File flashcontents could not be created!"
		exit 1
	fi
}

write_flashcontents_file() {
	while IFS=' ' read -ra entry
	do
		# if no mode/hash is supplied mark file as writeable
		if [[ ${entry[1]} == '' ]]; then
			entry[1]='W'
		fi

		echo "${entry[1]} ${entry[0]}" >> flashcontents
	done < "$file"
}

# if less than two arguments supplied, display usage 
if [  $# -le 0 ] 
then 
	display_usage
	exit 1
fi 

# rewrite to absolute path if necessary
if [[ ! ${1:0:1} == "/" ]]; then
	file=$PWD/$1
fi

# check whether the given file actually exists
if [ ! -f "$file" ]; then
	echo "Supplied file does not exist!"
	exit 1
fi
 
# check whether user had supplied -h or --help . If yes display usage 
if [[ ( $# == "--help") ||  $# == "-h" ]] 
then 
	display_usage
	exit 0
fi 

# create flashcontents file in current working directory
create_flashcontents_file

# write file entries to flashcontents file
write_flashcontents_file

# all done!
exit 0