convert HEIC files in place

convert-heic.sh

#!/bin/bash

# Warning: converts file in place

# Usage:
#   convert-heic kittens009142.heic

set -eu

if [ $# != 1 ]; then
  echo Usage: convert-heic filename.HEIC
  exit 1
fi

filename=$1

unrecognised () {
  echo Unrecognised file extension
  exit 1
}

do_conversion () {
  local base="$1"
  local dir="$2"
  local target="${base}.jpeg" # da da da
  tifig "$filename" > "$dir/$target"
  rm -f "$filename"
}

d=$(dirname "$filename")

case "$filename" in
  *.HEIC) do_conversion "$(basename "$filename" .HEIC)" "$d" ;;
  *.heic) do_conversion $(basename "$filename" .heic) "$d" ;;
  *) unrecognised ;;
esac