small script that processes a large amount of files to add to an Asset Server

hasher.sh

#/bin/sh

input="$(dirname $0)/input"
output="$(dirname $0)/output"

if [ ! -d "$input" ]; then
	echo "Missing input folder: $input";
	exit;
fi
if [ ! -d "$output" ]; then
    echo "Missing output folder: $output";
	exit;
fi


files=$(find $input -type f);

mkdir "$output/files";
touch "$output/mapping.txt";
> "$output/mapping.txt"; # clear file if already exists

echo "$files" | while read f
do
    path=${f:${#input}};
    hash=$(cat "$f" | shasum -a 256 | cut -d " " -f 1);
    echo "File: $f\nPath: $path\nHash: $hash";
    cat "$f" > "$output/files/$hash";
    echo "\"$path\": \"$hash\"," >> "$output/mapping.txt";
done