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Krzysztof kuhy Rudnicki
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Docker mysql:8.0.33 container, judge-style output grading, 12 original drills with live-verified references kept in tests only. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WzxdWZewj4WS5X6AZyjWDp
69 lines
2.2 KiB
Python
69 lines
2.2 KiB
Python
"""CLI: ``python3 -m python_pkg.sql_drills start|stop|list|show|check``."""
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from __future__ import annotations
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import argparse
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from pathlib import Path
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import sys
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from python_pkg.sql_drills import _check, _drills, _engine
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_EXIT_CODES = {"pass": 0, "fail": 1, "error": 2}
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def _out(line: str) -> None:
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sys.stdout.write(f"{line}\n")
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def _err(line: str) -> None:
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sys.stderr.write(f"{line}\n")
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def _build_parser() -> argparse.ArgumentParser:
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parser = argparse.ArgumentParser(prog="sql_drills", description=__doc__)
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sub = parser.add_subparsers(dest="cmd", required=True)
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sub.add_parser("start", help="start the MySQL 8.0.33 container and wait")
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sub.add_parser("stop", help="remove the container")
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sub.add_parser("list", help="list drills in priority order")
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show = sub.add_parser("show", help="print task, schema, expected sample")
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show.add_argument("drill", help="drill id or number, e.g. 03")
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check = sub.add_parser("check", help="grade a .sql file against a drill")
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check.add_argument("drill", help="drill id or number, e.g. 03")
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check.add_argument("sql_file", type=Path)
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return parser
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def _dispatch(args: argparse.Namespace) -> int:
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if args.cmd == "start":
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_engine.start()
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_out(f"{_engine.CONTAINER} ready ({_engine.IMAGE})")
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elif args.cmd == "stop":
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_engine.stop()
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_out(f"{_engine.CONTAINER} removed")
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elif args.cmd == "list":
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for drill in _drills.list_drills():
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_out(f"{drill.id} {_drills.title_of(drill)}")
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elif args.cmd == "show":
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sys.stdout.write(_drills.render_show(_drills.get_drill(args.drill)))
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else:
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result = _check.run_check(_drills.get_drill(args.drill), args.sql_file)
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_out(result.message)
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return _EXIT_CODES[result.status]
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return 0
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def main(argv: list[str] | None = None) -> int:
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"""Entry point; returns the process exit code."""
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args = _build_parser().parse_args(argv)
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try:
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return _dispatch(args)
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except _drills.UnknownDrillError as exc:
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_err(exc.args[0])
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except _engine.EngineError as exc:
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_err(f"error: {exc}")
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return 2
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if __name__ == "__main__":
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sys.exit(main())
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