refactor(cmk-crash): port crash reporting library from cmk.ccc

(split into _crash / _fingerprint / _store)

The old cmk.ccc.crash_reporting stays until the hard-cut rename.

VersionInfo and its shared base are homed in the new cmk.ccc.version_info
module (VersionInfoBase + VersionInfo) rather than in cmk.crash: VersionInfo is
produced by cmk.ccc.version, so keeping it in the foundational cmk.ccc layer lets
cmk.crash depend downward on it and avoids inverting the cmk.ccc layer once the
consumers are renamed (CMK-104). cmk.crash re-exports VersionInfo, so its public
API surface is unchanged.

Change-Id: I5a26c421c8d975f97de63812e429575165f984bc

Author: Ahmed Hedi

module_layers.toml

@@ -572,6 +572,9 @@ allows = [
 [components."cmk.core_client"]
 allows = ["@ccc", "@trace"]
 
+[components."cmk.crash"]
+allows = ["@ccc"]
+
 [components."cmk.crypto"]
 allows = ["@ccc"]
 

packages/cmk-ccc/BUILD

@@ -223,6 +223,14 @@ py_library(
     ],
 )
 
+py_library(
+    name = "version-info",
+    srcs = ["cmk/ccc/version_info.py"],
+    imports = ["."],
+    visibility = ["//visibility:public"],
+    deps = ["_init"],
+)
+
 py_library(
     name = "timeout",
     srcs = ["cmk/ccc/timeout.py"],
@@ -266,6 +274,7 @@ _ALL = [
     "tty",
     "user",
     "version",
+    "version-info",
 ]
 
 py_doc_test(
@@ -421,21 +430,6 @@ py_test(
     ],
 )
 
-py_test(
-    name = "crash-reporting-tests",
-    size = "small",
-    srcs = [
-        "__test__.py",
-        "tests/test_crash_reporting.py",
-    ],
-    main = "__test__.py",
-    deps = [
-        "__test__",
-        "crash-reporting",
-        requirement("pytest"),
-    ],
-)
-
 py_test(
     name = "archive-tests",
     size = "small",

packages/cmk-ccc/cmk/ccc/version_info.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+# Copyright (C) 2026 Checkmk GmbH - License: GNU General Public License v2
+# This file is part of Checkmk (https://checkmk.com). It is subject to the terms and
+# conditions defined in the file COPYING, which is part of this source code package.
+"""Environment/version snapshot types shared by the version subsystem and crash reporting.
+
+``VersionInfo`` is produced by :mod:`cmk.ccc.version` (the ``general_version_infos*``
+functions) and consumed by the crash-reporting library to build a ``CrashInfo``. It
+lives here, in the foundational ``cmk.ccc`` layer alongside its producer, so that higher
+layers (``cmk.crash``) depend downward on it rather than the reverse.
+"""
+
+from collections.abc import Sequence
+from typing import TypedDict
+
+
+class VersionInfoBase(TypedDict):
+    """Environment fields shared between ``VersionInfo`` and the crash-reporting ``CrashInfo``.
+
+    ``time`` is intentionally absent from this base class. TypedDict inheritance does not
+    support redefining a key with a different type in a subclass, so each subclass declares
+    its own ``time`` independently:
+
+    - ``VersionInfo.time: float`` — raw timestamp used when *constructing* a new crash
+      report (see ``collect_crash_info``).
+    - ``CrashInfo.time: CrashOccurrences`` — structured occurrence data stored on disk and
+      used wherever the persisted format is read back.
+    """
+
+    core: str
+    python_version: str
+    edition: str
+    python_paths: Sequence[str]
+    version: str
+    os: str
+
+
+class VersionInfo(VersionInfoBase):
+    """Carries the raw construction-time timestamp as a float."""
+
+    time: float

packages/cmk-crash/BUILD

@@ -14,10 +14,17 @@ py_library(
     name = "crash",
     srcs = [
         "cmk/crash/__init__.py",
+        "cmk/crash/_crash.py",
+        "cmk/crash/_fingerprint.py",
+        "cmk/crash/_store.py",
     ],
     data = [":crash_py_typed"],
     imports = ["."],
     visibility = ["//visibility:public"],
+    deps = [
+        "//packages/cmk-ccc:store",
+        "//packages/cmk-ccc:version-info",
+    ],
 )
 
 py_library(

packages/cmk-crash/cmk/crash/__init__.py

@@ -4,8 +4,62 @@
 # conditions defined in the file COPYING, which is part of this source code package.
 """Minimal crash-reporting library: dataclasses, on-disk store, and fingerprint helpers.
 
-Code is migrated here from ``cmk.ccc.crash_reporting`` later. Write-time
-deduplication behavior is preserved. the fingerprint helpers and the
-``CrashReportStore.save()`` merge-into-existing logic land in this library
-alongside the store.
+Ported verbatim from ``cmk.ccc.crash_reporting``. Write-time deduplication
+behavior is preserved: the fingerprint helpers and the
+``CrashReportStore.save()`` merge-into-existing logic live in this library
+alongside the store. The public API surface is unchanged from the old module —
+only the import path moves (``cmk.ccc.crash_reporting`` → ``cmk.crash``).
 """
+
+from cmk.ccc.version_info import VersionInfo
+
+from ._crash import (
+    ABCCrashReport,
+    BaseDetails,
+    ContactDetails,
+    CRASH_INFO_VERSION,
+    CrashInfo,
+    CrashOccurrences,
+    format_var_for_export,
+    make_crash_report_base_path,
+    REDACTED_STRING,
+    RobustJSONEncoder,
+    SENSITIVE_KEYWORDS,
+    SerializedCrashReport,
+    TDetails,
+)
+from ._fingerprint import (
+    crash_fingerprint,
+    fingerprint_hash,
+    normalize_crash_time,
+)
+from ._store import (
+    cleanup_crash_reports,
+    CrashReportStore,
+    DEFAULT_MAX_CRASH_AGE,
+    DEFAULT_MAX_CRASHES_TOTAL_SIZE,
+)
+
+__all__ = [
+    "ABCCrashReport",
+    "BaseDetails",
+    "cleanup_crash_reports",
+    "ContactDetails",
+    "CRASH_INFO_VERSION",
+    "CrashInfo",
+    "CrashOccurrences",
+    "CrashReportStore",
+    "DEFAULT_MAX_CRASH_AGE",
+    "DEFAULT_MAX_CRASHES_TOTAL_SIZE",
+    "REDACTED_STRING",
+    "RobustJSONEncoder",
+    "SENSITIVE_KEYWORDS",
+    "SerializedCrashReport",
+    "TDetails",
+    "VersionInfo",
+    "crash_fingerprint",
+    "fingerprint_hash",
+    "format_var_for_export",
+    "make_crash_report_base_path",
+    "normalize_crash_time",
+]