Play music files inside a dir (Linux + mpv)

play

#!/bin/bash

# Name of the playlist file to generate/use
playlist="playlist.m3u"

# Check if the playlist file doesn't exist
if [ ! -f "$playlist" ]; then
    # Enable nullglob to handle patterns with no matches
    shopt -s nullglob
    
    # Collect all music files with common extensions
    # Add or remove extensions as needed for your use case
    music_files=(*.mp3 *.m4a *.aac *.flac)
    
    # Check if we found any music files
    if [ ${#music_files[@]} -eq 0 ]; then
        echo "Error: No playlist and no music files found."
        exit 1
    fi

    # Sort files case-insensitively and create playlist
    # - Use 'sort -f' for case-insensitive sorting
    # - 'printf %s\n' ensures proper handling of filenames with spaces
    printf "%s\n" "${music_files[@]}" | sort -f > "$playlist"
    echo "Created new playlist with ${#music_files[@]} tracks."
fi

# Check if playlist exists but is empty
if [ ! -s "$playlist" ]; then
    echo "Error: Playlist file exists but is empty."
    echo "       Delete it to regenerate or add entries manually."
    exit 2
fi

# Launch mpv player with the playlist
echo "Starting playback..."
exec mpv --playlist="$playlist"