8mb

#!/bin/bash
set -eo pipefail

size=10
tolerance=5

usage() {
    echo "Usage: $0 -f <file> [-s <size>] [-t <tolerance>]"
    echo "  -f <file>      File to compress"
    echo "  -s <size>      Target size in MB (default: 10)"
    echo "  -t <tolerance> Tolerance in % (default: 5)"
    echo "  -h             Display this help message"
}

# parse args
while getopts h:f:s:t: flag
do
    case "${flag}" in
        f) file=${OPTARG};;
        s) size=${OPTARG};;
        t) tolerance=${OPTARG};;
        h) usage
           exit 0;;
        *) usage
           exit 1;;
    esac
done

if [ -z "$file" ]; then
    usage
    exit 1
fi

docker run \
  --rm \
  --user "$(id -u):$(id -g)" \
  -v "$(dirname "$file"):/data" \
  matthewbaggett/8mb \
  -f "/data/$(basename "$file")" \
  --size "$size" \
  --tolerance "$tolerance"