commit 39a8082bb34bebbe319babf39e7d5edc124ffd9c
Author: Mika <kontakt@donau2space.de>
Date:   Fri Feb 20 11:16:30 2026 +0000

    Add rollup_rollout/src/rollup_rollout/core.py

diff --git a/rollup_rollout/src/rollup_rollout/core.py b/rollup_rollout/src/rollup_rollout/core.py
new file mode 100644
index 0000000..9506bde
--- /dev/null
+++ b/rollup_rollout/src/rollup_rollout/core.py
@@ -0,0 +1,82 @@
+from __future__ import annotations
+import json
+import csv
+from pathlib import Path
+from dataclasses import dataclass
+from typing import Any, List, Dict
+
+
+@dataclass
+class RolloutData:
+    """Repräsentiert die strukturierten CI-Laufdaten eines Gate-V1-Runs."""
+    policy_hash: str
+    outcome: str
+    unknown_rate: float
+    top_reasons: str
+
+    @classmethod
+    def from_dict(cls, data: Dict[str, Any]) -> "RolloutData":
+        """Validiert und erstellt eine Instanz aus einem Dictionary."""
+        if not isinstance(data, dict):
+            raise ValueError("Input must be a dictionary.")
+        required_fields = ["policy_hash", "outcome", "unknown_rate", "top_reasons"]
+        for field in required_fields:
+            if field not in data:
+                raise ValueError(f"Missing required field: {field}")
+        if not isinstance(data["policy_hash"], str):
+            raise TypeError("policy_hash must be a string")
+        if not isinstance(data["outcome"], str):
+            raise TypeError("outcome must be a string")
+        if not isinstance(data["unknown_rate"], (float, int)):
+            raise TypeError("unknown_rate must be a float or int")
+        if not isinstance(data["top_reasons"], str):
+            raise TypeError("top_reasons must be a string")
+        return cls(
+            policy_hash=data["policy_hash"],
+            outcome=data["outcome"],
+            unknown_rate=float(data["unknown_rate"]),
+            top_reasons=data["top_reasons"],
+        )
+
+
+def generate_rollout_series(input_file: str, output_file: str) -> None:
+    """Aggregiert CI-Ergebnisse aus mehreren 'gate_result.json'-Dateien zu einer konsistenten CSV-Datei.
+
+    Args:
+        input_file: Pfad zur Eingabedatei im JSON-Format mit CI-Ergebnissen.
+        output_file: Pfad zur Ausgabedatei (rollout_series.csv).
+    """
+    input_path = Path(input_file)
+    output_path = Path(output_file)
+
+    if not input_path.exists():
+        raise FileNotFoundError(f"Input file not found: {input_path}")
+
+    with input_path.open("r", encoding="utf-8") as f:
+        try:
+            data = json.load(f)
+        except json.JSONDecodeError as e:
+            raise ValueError(f"Invalid JSON format: {e}")
+
+    if not isinstance(data, list):
+        raise ValueError("JSON root must be a list of CI result objects.")
+
+    rollout_entries: List[RolloutData] = []
+    for entry in data:
+        rollout_entries.append(RolloutData.from_dict(entry))
+
+    rollout_entries.sort(key=lambda x: (x.policy_hash, x.outcome))
+
+    output_path.parent.mkdir(parents=True, exist_ok=True)
+    with output_path.open("w", encoding="utf-8", newline="") as csvfile:
+        writer = csv.writer(csvfile)
+        writer.writerow(["policy_hash", "outcome", "unknown_rate", "top_reasons"])
+        for entry in rollout_entries:
+            writer.writerow([
+                entry.policy_hash,
+                entry.outcome,
+                f"{entry.unknown_rate:.4f}",
+                entry.top_reasons,
+            ])
+
+    assert output_path.exists() and output_path.stat().st_size > 0, "Output CSV was not created or is empty."
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