MS4 - Batch Processing - MusicXML parts

#!/bin/bash
 
# === CONFIGURATION ===
SOURCE_DIR="$HOME/Desktop/Source"
MUSESCORE_APP="/Applications/MuseScore 4.app/Contents/MacOS/mscore"
 
# === FIND VALID MSCZ FILES ===
files=("$SOURCE_DIR"/*.mscz)
total=${#files[@]}
count=0
 
# === EXIT IF NO FILES FOUND ===
if [ $total -eq 0 ]; then
    echo "⚠️ No .mscz files found in $SOURCE_DIR"
    exit 1
fi
 
# === EXPORT LOOP ===
echo "🔄 Exporting $total files to MIDI and MusicXML..."
 
echo "[" > job.json # start JSON file
 
for file in "${files[@]}"; do
    # Skip if file doesn't exist or is autosave
    [[ -f "$file" && "$file" != *",.mscz" ]] || continue
 
    BASENAME=$(basename "$file" .mscz)
 
    echo "{ \"in\": \"$file\"," >>  job.json # add input file to JSON file
    echo " \"out\": [ \"$SOURCE_DIR/$BASENAME.mid\", \"$SOURCE_DIR/$BASENAME.musicxml\" ] }," >>  job.json # add output files to JSON file
    # Update progress bar
    ((count++))
    percent=$((count * 100 / total))
    echo -ne "Progress: $count/$total [$percent%]\r"
done
 
echo "{}" >> job.json # fixup JSON file (workaround tor a trailing comma not being allowed)
echo "]" >> job.json # finalize JSON file
 
# Export MIDI and MusicXML (suppressing QML output)
"$MUSESCORE_APP" -j job.json 2>/dev/null
 
rm job.json # cleaunp JSON file
 
echo -e "\n✅ All done. Exported to: $SOURCE_DIR"