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#!/usr/bin/env python3

"""Verify every published runnable example dynamically."""

from __future__ import annotations

import subprocess

import sys

from pathlib import Path

ROOT = Path(__file__).resolve().parents[1]

def discover_example_verifiers(root: Path) -> list[Path]:

"""Find all verify.py scripts in example directories."""

examples_dir = root / "examples"

if not examples_dir.exists():

return []

return sorted(examples_dir.glob("*/verify.py"))

def main() -> int:

verifiers = discover_example_verifiers(ROOT)

if not verifiers:

print("error: no runnable examples found under examples/*/", file=sys.stderr)

return 1

for verify in verifiers:

example_name = verify.parent.name

commands = (

[sys.executable, str(verify), "starter", "--expect-failure"],

[sys.executable, str(verify), "solution"],

)

for command in commands:

result = subprocess.run(command, check=False)

if result.returncode != 0:

print(

f"verification failed for example '{example_name}': {' '.join(command)}",

file=sys.stderr,

)

return result.returncode

print(f"all {len(verifiers)} runnable example(s) are valid")

return 0

if __name__ == "__main__":

raise SystemExit(main())