refactor: extract launch script + adapt metadata extractor

scripts/server.py

@@ -0,0 +1,71 @@
+#!/usr/bin/env python3
+
+import argparse
+import logging
+
+from src.env_default import EnvDefault
+from src.server import MeliesServer
+
+
+def main():
+    logging.basicConfig(
+        level=logging.INFO,
+        format="%(asctime)s [%(levelname)s] %(message)s",
+        datefmt=r"%Y-%m-%d %H:%M:%S"
+    )
+
+    parser = argparse.ArgumentParser(
+        description="Starts the Melies server",
+        formatter_class=argparse.RawTextHelpFormatter
+    )
+    parser.add_argument(
+        "-p", "--port",
+        action=EnvDefault,
+        envvar="MELIES_PORT",
+        default=8000,
+        type=int,
+        help="Port on which the server listens"
+    )
+    parser.add_argument(
+        "--max-payload-size",
+        action=EnvDefault,
+        envvar="MELIES_MAX_PAYLOAD_SIZE",
+        default=1e6,
+        type=int,
+        help="Maximum POST payload size in bytes that the server accepts"
+    )
+    parser.add_argument(
+        "--to-convert-dir",
+        action=EnvDefault,
+        envvar="MELIES_TO_CONVERT_DIR",
+        default="to_convert",
+        help="Path to the directory containing medias to convert"
+    )
+    parser.add_argument(
+        "--converted-dir",
+        action=EnvDefault,
+        envvar="MELIES_CONVERTED_DIR",
+        default="converted",
+        help="Path to the directory containing converted medias"
+    )
+    parser.add_argument(
+        "--metadata-dir",
+        action=EnvDefault,
+        envvar="MELIES_METADATA_DIR",
+        default="metadata",
+        help="Path to the directory containing metadata files"
+    )
+    args = parser.parse_args()
+
+    server = MeliesServer(
+        args.port,
+        args.to_convert_dir,
+        args.converted_dir,
+        args.metadata_dir,
+        args.max_payload_size
+    )
+    server.start()
+
+
+if __name__ == "__main__":
+    main()