Convert HEIC/HEIF file(s) to JPEG using ImageMagick

convert-heic-to-jpeg.sh

#!/usr/bin/env bash
# Convert HEIC/HEIF file(s) to JPEG using ImageMagick
# Usage:
#   ./convert-heic-to-jpeg.sh [DIRECTORY_PATH]
set -euo pipefail

# Usage check
if [ "$#" -ne 1 ]; then
  echo "Usage: $0 <path>"
  exit 2
fi

TARGET="$1"

# Verify magick is available
if ! command -v magick >/dev/null 2>&1; then
  echo "Error: magick not found in PATH. Please install imagemagick"
  exit 3
fi

# Normalize target path
if [ ! -e "$TARGET" ]; then
  echo "Error: path does not exist: $TARGET"
  exit 4
fi

# Find HEIC/HEIF files (case-insensitive) and convert each
# Extensions considered: .heic .heif
find_paths() {
  if [ -d "$TARGET" ]; then
    find "$TARGET" -type f \( -iname '*.heic' -o -iname '*.heif' \)
  else
    # Single file provided: check extension
    case "${TARGET##*.}" in
      heic|HEIC|heif|HEIF) printf '%s\n' "$TARGET" ;;
      *) exit 0 ;;
    esac
  fi
}

while IFS= read -r src; do
  # Determine destination filename: same dir, same base name, .jpg extension
  dir=$(dirname -- "$src")
  base=$(basename -- "$src")
  name="${base%.*}"
  dest="$dir/$name.jpg"

  # If dest exists, skip with info
  if [ -e "$dest" ]; then
    # echo "Skipping (exists): $dest"
    echo "Delete existing file: $dest"
    continue
  fi

  # Convert using ImageMagick
  echo "Converting: $src -> $dest"
  if ! magick "$src" "$dest"; then
    echo "Conversion failed: $src" >&2
  fi
done < <(find_paths)