How to simulate a Jenkins pipeline in Python

def run_stage(name, duration, fn):
    print(f"[Pipeline] Running stage: {name}")
    result = fn()
    print(f"[Pipeline] Stage '{name}' completed in {duration}s -> {result}")
    return result

def build_project():
    print("  compiling source...")
    return "BUILD_OK"

def run_tests():
    print("  executing unit tests...")
    return "TESTS_PASSED"

def deploy():
    print("  deploying to staging...")
    return "DEPLOYED"

if __name__ == "__main__":
    stages = [
        ("Build", 10, build_project),
        ("Test", 20, run_tests),
        ("Deploy", 5, deploy),
    ]
    print("=== Jenkins Pipeline Simulation ===")
    all_results = [run_stage(name, dur, fn) for name, dur, fn in stages]
    if all(r == "OK" for r in all_results):
        print("Pipeline succeeded")
    else:
        print("Pipeline finished with mixed results")
    print("Final status:", "SUCCESS" if all(r.endswith("OK") or r.endswith("PASSED") or r.endswith("DEPLOYED") for r in all_results) else "FAILURE")