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The max_delete case allowlisted the tree aspect because the surviving extras after a partial --max-delete abort are deletion-order dependent. Under FASTSYNC_PARITY_STRICT a run where the orders coincide was reported as a stale entry (CI failure), while removing the entry made the order-dependent tree mismatch fail. Add a per-case 'compare_tree' flag: max_delete now asserts rc=25 plus the survivor count via extra_check instead of exact tree identity, so the allowlist can be empty. Burn-down reached zero.
35 lines
1.3 KiB
Python
35 lines
1.3 KiB
Python
"""Data-driven allowlist for the differential rsync-parity gate.
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Every entry maps a case id (see ``test_differential_parity.py``) to the aspects
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that are *known* to differ from ``rsync 3.4.1`` and the documented reason. A
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differential mismatch in an aspect that is **not** listed here fails the gate.
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Aspect keys
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-----------
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``tree`` destination tree differs (paths, file hashes, symlink targets,
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modes, hardlink grouping)
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``stdout`` normalized output for ``-i`` / ``--stats`` / ``--out-format``
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``extra`` a case-specific assertion differs (basis/inode checks, ...)
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``rc`` exit status differs
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Burn-down
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---------
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If a case is listed here but now matches rsync, the gate emits a loud
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``pytest`` warning naming the stale entry: delete the entry (and, when the
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underlying row in ``RSYNC_COMPAT.md`` is now parity, update that row). Set
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``FASTSYNC_PARITY_STRICT=1`` to turn stale entries into failures in CI.
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Keep the values concise but cite the governing row so the entry can be
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re-triaged when the row moves.
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"""
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# case id -> {aspect: "reason (ref: RSYNC_COMPAT.md ...)"}
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CAVEATS = {}
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# Accepted aspect names (guards against typos in this file).
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ASPECTS = ("tree", "stdout", "extra", "rc")
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def caveat_for(case_id: str) -> dict:
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return CAVEATS.get(case_id, {})
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