ARCHIVED TRAINING / conan-io/conan

conan-io__conan-18385

This is a preserved training example. Membership in the current training wave has not been verified.

Problem statement

[bug] raising ConanInvalidConfiguration from pre_validate hook propagates exception
### Describe the bug

With a hook like this:
```
def pre_validate(conanfile):
    if some_condition_external_to_the_recipe:
        raise ConanInvalidConfiguration("Raised from pre_validate")
```

The expectation is that this behaves _as if_ exception was raised from within the `validate()` method.
Instead, the exception is propagated all the way to the top 


The problem is here:
https://github.com/conan-io/conan/blob/cc258fb079f5c7449d72d74f64156d61b73d6546/conans/client/graph/compute_pid.py#L74-L85

The hooks should be invoked from within the try/except clause


### How to reproduce it

_No response_

Training membership

opd_e4b_pure_v6a opd_e4b_pure_v6b opd_e4b_self_audit_v4

Task issues extracted from preserved verified_rft_messages training examples. This is not a verified current RL wave manifest.

Task and snapshot provenance

Snapshot captured 2026-11-12T17:06:59.476467+00:00 · Autoresearch-Arena/gemma-4-developer-agent

{
  "datasets": [
    "opd_e4b_pure_v6a",
    "opd_e4b_pure_v6b",
    "opd_e4b_self_audit_v4"
  ],
  "examples": 5,
  "instance_id": "conan-io__conan-18385",
  "problem_statement": "[bug] raising ConanInvalidConfiguration from pre_validate hook propagates exception\n### Describe the bug\n\nWith a hook like this:\n```\ndef pre_validate(conanfile):\n    if some_condition_external_to_the_recipe:\n        raise ConanInvalidConfiguration(\"Raised from pre_validate\")\n```\n\nThe expectation is that this behaves _as if_ exception was raised from within the `validate()` method.\nInstead, the exception is propagated all the way to the top \n\n\nThe problem is here:\nhttps://github.com/conan-io/conan/blob/cc258fb079f5c7449d72d74f64156d61b73d6546/conans/client/graph/compute_pid.py#L74-L85\n\nThe hooks should be invoked from within the try/except clause\n\n\n### How to reproduce it\n\n_No response_",
  "repo": "conan-io/conan",
  "source": "v2/experiments/train_data/opd_e4b_pure_v6a/verified_rft_messages.jsonl",
  "source_sha256": "f045b7ca5b3883a1e2eaee81e1c02a4a1b53dd7b7b36e98bacb2ba5823a15148"
}

{
  "captured_at": "2026-11-12T17:06:59.476467+00:00",
  "membership": "archived training",
  "membership_evidence": "Task issues extracted from preserved verified_rft_messages training examples. This is not a verified current RL wave manifest.",
  "name": "Preserved post-training task archive",
  "source": "Autoresearch-Arena/gemma-4-developer-agent",
  "source_revision": "016496de222aaafca0d4ee4c18efc63ba616f76e",
  "sources": [
    {
      "path": "v2/experiments/train_data/opd_e4b_cispo_v5/verified_rft_messages.jsonl",
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    },
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    },
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      "path": "v2/experiments/train_data/opd_e4b_onpolicy_v3/verified_rft_messages.jsonl",
      "sha256": "960c680e797e823a0d3a22f4b1d5ef60a72971373d703b877340b0c9126aaf68"
    },
    {
      "path": "v2/experiments/train_data/opd_e4b_pure_v6a/verified_rft_messages.jsonl",
      "sha256": "f045b7ca5b3883a1e2eaee81e1c02a4a1b53dd7b7b36e98bacb2ba5823a15148"
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    {
      "path": "v2/experiments/train_data/opd_e4b_pure_v6b/verified_rft_messages.jsonl",
      "sha256": "0f62460a9706eea5e1605255896f191ab00cb5706c5f1f2e1c293e9a718218dc"
    },
    {
      "path": "v2/experiments/train_data/opd_e4b_pure_v7/verified_rft_messages.jsonl",
      "sha256": "e37f7bd675322f3f81500b73559d60d5f602ca0537bf19f5cb06332c728c7b72"
    },
    {
      "path": "v2/experiments/train_data/opd_e4b_pure_v7b/verified_rft_messages.jsonl",
      "sha256": "b864bdc8695183433eef6e31cb8d33fad44ba3aded2170c1ade4ad5b2944ce23"
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      "sha256": "0026023745afb8f3dc1c176dc7f7171157b4ad5a66656b524af218e8e19ceee6"
    },
    {
      "path": "v2/experiments/train_data/rft_e4b_aligned_v2/verified_rft_messages.jsonl",
      "sha256": "92a4515fee9d152b0d4c510ee3ce4caaaffe2003ba7584469f8027f174aab18c"
    },
    {
      "path": "v2/experiments/train_data/rft_v1/verified_rft_messages.jsonl",
      "sha256": "a42453ccd7ac7680b0a03865e8e7080bc8bf74c8d9d193b440c441ed46f8512b"
    },
    {
      "path": "v2/experiments/train_data/rft_v2/verified_rft_messages.jsonl",
      "sha256": "18f4b3bd7e651f83c6acab479c9475e3fa50dc652a384f309e97146983ac85ba"
    }
  ]
}