bsimg-process.sh


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#!/usr/bin/env bash
set -euo pipefail

DIR="$1"
HASH="$2"
EXT="$3"

cd "$DIR"
for size in thumb:200 medium:800 large:1600; do
    name="${size%%:*}"; px="${size##*:}"
    magick "${HASH}-original.${EXT}" -resize "${px}x${px}>" "${HASH}-${name}.jpg"
done