#!/bin/bash
#
# Lists firmware files which appear in the specified fwinfo file
# but are not present in the linux-firmware tree. Optionally
# specify the branch in git to check; if not supplied HEAD is
# assumed.

if [ $# -lt 1 ]; then
	echo "Usage $0 <fwinfo> [<branch>]"
	exit 1
fi

fwinfo="$1"
branch="$2"
[ -z "$branch" ] && branch="HEAD"

declare -A fw_files
IFS=$'\n'
for line in $(git ls-tree -r --name-only "$branch")
do
	fw_files[$line]=1
done

for line in $(cat "$fwinfo")
do
	file=$(echo "$line" | sed -e 's/^firmware:\s\+\(.*\)$/\1/')
	[ -z "${fw_files[$file]}" ] && echo "$file"
done