import argparse import sys import re import importlib # import pysnooper # @pysnooper.snoop() def parse_args(): """Defines and parses the CLI arguments.""" if len(sys.argv) < 2: sys.stderr.write(""" This program trains, manipulates, visualises, and manages a contrastive learning based rainfall radar → water depth prediction model. It functions by first finding relationships between the rainfall radar data and the water depth + heightmap data (the 'pretrain' subcommand). After this, a decoder model to predict water depth (modelled as an image segmentation task), can then be trained. Available subcommands: pretrain Pretrain a contrastive learning model as an encoder. For more information, do src/index.py --help. """) exit(0) subcommand = re.sub(r'[^a-z0-9-]', '', sys.argv[1]) subcommand_argparser = importlib.import_module(f"subcommands.{subcommand}").parse_args parser = subcommand_argparser() # sys.stderr.write(f"Error: Unknown subcommand '{subcommand} (try --help).\n") # exit(1) if parser == None: sys.stderr.write(f"Error: The subcommand '{subcommand}' did not return an argument parser. This is a bug.\n") exit(1) parser.add_argument("--only-gpu", help="If the GPU is not available, exit with an error (useful on shared HPC systems to avoid running out of memory & affecting other users)", action="store_true") return subcommand, parser.parse_args(args=sys.argv[2:])