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https://github.com/elder-plinius/OBLITERATUS.git
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72 lines
2.1 KiB
Python
72 lines
2.1 KiB
Python
"""Enforce separate line and branch floors from a coverage.py JSON report."""
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from __future__ import annotations
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import argparse
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import json
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import math
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from pathlib import Path
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from typing import Any
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def validate_coverage(
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report: dict[str, Any], *, min_line: float, min_branch: float,
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) -> list[str]:
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"""Return human-readable failures for coverage totals below their floors."""
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totals = report.get("totals")
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if not isinstance(totals, dict):
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return ["coverage report is missing the totals object"]
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failures: list[str] = []
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metrics = (
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("line", "percent_statements_covered", min_line),
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("branch", "percent_branches_covered", min_branch),
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)
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for label, key, minimum in metrics:
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value = totals.get(key)
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if (
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isinstance(value, bool)
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or not isinstance(value, (int, float))
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or not math.isfinite(value)
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):
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failures.append(f"coverage report is missing numeric {key}")
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elif value < minimum:
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failures.append(
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f"{label} coverage {value:.2f}% is below the {minimum:.2f}% floor",
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)
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return failures
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def _parser() -> argparse.ArgumentParser:
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument("report", type=Path, help="coverage.py JSON report")
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parser.add_argument("--min-line", type=float, required=True)
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parser.add_argument("--min-branch", type=float, required=True)
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return parser
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def main() -> int:
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args = _parser().parse_args()
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report = json.loads(args.report.read_text(encoding="utf-8"))
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failures = validate_coverage(
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report,
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min_line=args.min_line,
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min_branch=args.min_branch,
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)
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if failures:
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for failure in failures:
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print(f"coverage gate failed: {failure}")
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return 1
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totals = report["totals"]
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print(
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"coverage gate passed: "
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f"line={totals['percent_statements_covered']:.2f}% "
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f"branch={totals['percent_branches_covered']:.2f}%",
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)
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return 0
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if __name__ == "__main__":
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raise SystemExit(main())
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