Generates RetroArch-compatible playlists from directories containing zipped roms

retroarch-playlist-generator.py

#!/usr/bin/env python3
# Generates RetroArch-compatible playlists from directories containing zipped roms
# Copy this script into ~/.config/retroarch and Set ROM_DIR below to the directory containing the system subdirectories with roms
# These system subdirectories must be named the same way as the RetroArch's playlist names i.e. "Vendor - Console_Model"

import glob, json, os
from zipfile import ZipFile

BASE_DIR = os.path.dirname(os.path.realpath(__file__))
PL_DIR = f'{BASE_DIR}/playlists'
ROM_DIR = '/home/a/Games/Golden Age of Video Games - Age of the Cartridge v8.0'

header = {
  "version": "1.4",
  "default_core_path": "",
  "default_core_name": "",
  "label_display_mode": 0,
  "right_thumbnail_mode": 0,
  "left_thumbnail_mode": 0,
  "sort_mode": 0
}

for d in glob.glob(f'{ROM_DIR}/*/'):
  
  system = d.split('/')[-2]
  if '-' not in system:
    continue
  
  items = []
  
  
  for f in glob.glob(f'{d}/*.zip'):

    zf = ZipFile(f)
    info = zf.infolist()[0]
    
    item = {
      "path": f"{f}#{info.filename}",
      "label": f"{'.'.join(info.filename.split('.')[:-1])}",
      "core_path": "DETECT",
      "core_name": "DETECT",
      "crc32": f"{info.CRC}|crc",
      "db_name": f"{system}.lpl"
    }
    
    items.append(item)
    
  items_dict = { "items": items }
  pl = { **header, **items_dict }
  #print(json.dumps(pl))
  
  with open(f"{PL_DIR}/{system}.lpl", "w") as outfile:
    json.dump(pl, outfile, indent = 2)