Enno Tensing
995a66c753
Generates control scripts from a given container config. For now the actual generate.py does nothing. Signed-off-by: Enno Tensing <tenno@suij.in>
77 lines
2.2 KiB
Python
77 lines
2.2 KiB
Python
#!/usr/bin/env python3
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"""Generate the control files.."""
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import json
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import sys
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from pathlib import Path
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from container import ConfigError, Container
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from log import Log
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def load_container_config(file: Path, log: Log) -> dict | None:
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"""Load a container config."""
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if not file.exists():
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log.log_error(f"{file.name} does not exist!")
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return None
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data = {}
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with file.open("r", encoding="utf-8") as fp:
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try:
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data = json.load(fp)
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except json.JSONDecodeError as e:
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log.log_error(f"{file.name} is not a valid JSON file!")
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log.log_debug(f"Exception: {e}")
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return None
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except UnicodeDecodeError as e:
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log.log_error(f"{file.name} is not a valid UTF8 file!")
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log.log_debug(f"Exception: {e}")
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return None
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except OSError as e:
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log.log_error(f"{file.name} could not be read!")
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log.log_debug(f"Exception: {e}")
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return None
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return data
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def create_container_from_config(data: dict, log: Log) -> Container | None:
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"""Create a container object."""
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log.log_info("Creating container...")
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log.log_debug(f"Container config is:\n{data}")
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ct: Container | None = None
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try:
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ct = Container(data)
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except ConfigError as e:
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log.log_error(f"{e}")
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return None
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return ct
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def main() -> None:
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"""Run the program."""
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argc_threshold = 2
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if len(sys.argv) < argc_threshold:
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logger = Log("/dev/stdout")
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logger.log_error("No arguments passed!")
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sys.exit(1)
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config_file = ""
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log_file = ""
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if len(sys.argv) >= argc_threshold:
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config_file = sys.argv[1]
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if len(sys.argv) > argc_threshold:
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log_file = sys.argv[2]
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logger = Log(log_file)
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data = load_container_config(Path(config_file), logger)
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if data is None:
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logger.log_error(f"{config_file} is invalid, aborting!")
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sys.exit(1)
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try:
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ct = create_container_from_config(data, logger)
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except Exception as e: # noqa: BLE001
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logger.log_error(e)
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sys.exit(1)
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print(ct)
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print(vars(ct))
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if __name__ == "__main__":
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main()
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