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Replace piragi/torch with in-house RAG engine (#168)
* [437e398a] Wave 1A — Remove piragi/torch dependencies entirely (#161) * [437e398a] chore(deps): remove piragi and torch from pyproject.toml and uv.lock - Remove piragi[postgres] from [project.dependencies] - Remove torch entry and its CPU-only comment from [project.dependencies] - Remove [[tool.uv.index]] pytorch-cpu block and [tool.uv.sources] torch override - Remove torch from [tool.deptry.per_rule_ignores] DEP002 - Keep piragi.* in [[tool.mypy.overrides]] ignore_missing_imports so the remaining optimal_brain/ piragi references don't break the mypy gate (Wave 1B will complete that migration) - Regenerate uv.lock: neither piragi nor torch appear in the resolved set * [437e398a] feat(kb): add piragi-free roboco/kb module with Chunk, OllamaEmbedder, shared embedder singleton - roboco/kb/__init__.py: new package entry point; 'import roboco.kb' works without piragi - roboco/kb/ollama_embedder.py: local Chunk dataclass (text/embedding/metadata), full OllamaEmbedder with parallel batch, LRU cache, retry/rate-limit logic - roboco/kb/shared_embedder.py: async singleton factory (OllamaEmbedder only, piragi EmbeddingGenerator branch removed) - All files pass ruff format+check and mypy with zero errors --------- Co-authored-by: Backend Developer 2 <be-dev-2@agents.roboco.dev> * [df01fa23] Replace piragi/torch with in-house RAG engine (#160) * [df01fa23] feat(rag): replace piragi/torch with in-house RAG engine - Remove piragi[postgres] and torch from pyproject.toml dependencies - Delete piragi_patches.py; all piragi.types imports replaced with local types - Add text_chunker.py: character-based sliding-window chunker with local Chunk/Document/Citation dataclasses (no tiktoken, no HuggingFace AutoTokenizer) - Add vector_store.py: VectorStore using asyncpg + pgvector, CREATE TABLE IF NOT EXISTS, ivfflat index, before/after startup timing note in docstring - Rewrite base.py: HyDE in _compute_query_embedding() via Ollama LLM with raw-query fallback; zero references to _sync/_conn/_init_schema/AsyncRagi - Update shared_embedder.py, ollama_embedder.py, code.py, docs.py to import Chunk from text_chunker instead of piragi.types - Refresh uv.lock removing piragi/torch entries - ruff check exits 0; mypy exits 0 on 253 source files; 2301 unit tests pass * [df01fa23] fix(tests): remove piragi stub block from conftest.py and clean up remaining piragi references in tests/ - Replace tests/unit/services/optimal_brain/conftest.py content with a minimal one-line docstring (removes _StubChunker, _ensure_piragi_stubbed, and its module-level call) — satisfies AC#7 explicitly - Remove piragi stub injection block from test_rate_limit_retry.py (_PIRAGI_STUB_NAMES, _stub_piragi(), and the call); also drop unused sys/types imports and now-redundant # noqa: E402 directives - Update _make_journal_plugin() helper to use the new _store/_chunker/_embedder attributes instead of the removed _ragi attribute - Remove dead piragi comment from test_indexes_base.py - All 28 rate-limit tests + 15 optimal_brain tests pass; ruff=0, mypy=0 * [df01fa23] fix(rag): delete piragi_patches.py to satisfy AC2 - file staged for removal --------- Co-authored-by: Backend Developer 1 <be-dev-1@agents.roboco.dev> * fix(rag): VectorStore.close tolerates a closed event loop The in-house engine's asyncpg pool is bound to the loop that created it. The optimal-service singleton can outlive that loop (cross-loop teardown between tests), so pool.close() raised 'RuntimeError: Event loop is closed' — failing test_optimal_grounding in the full suite (the work's first end-to-end gate). Swallow that specific RuntimeError (connections died with the loop); other RuntimeErrors still propagate. +3 unit tests. * fix(rag): validate table identifier + bandit-clean SQL construction bandit flagged B608 (SQL injection) on the in-house VectorStore's f-string queries interpolating the table name. The name is enum-derived (never user input), but the gate runs bandit -ll with skips=[] so it failed. Fix at the root, no nosec: validate the table identifier against a strict allowlist in __init__ (raises on anything unsafe), and inject it via _q()/str.replace (not %/format/f-string/+) so the controlled substitution isn't a B608 vector. Values remain $N bind params. +tests for the identifier guard. --------- Co-authored-by: Backend Developer 2 <be-dev-2@agents.roboco.dev> Co-authored-by: Backend Developer 1 <be-dev-1@agents.roboco.dev> Co-authored-by: Renn F <rennf93@users.noreply.github.com>
This commit is contained in:
Renzo F
co-authored by
Backend Developer 2
Backend Developer 1
Renn F
Backend Developer 2
Backend Developer 1
Renn F
parent
133411fe1c
commit
2aef3c7db5
@@ -1,54 +1 @@
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"""Conftest for optimal_brain unit tests.
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Injects lightweight piragi stubs into sys.modules before any test module is
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imported so the index plugins can be imported without the real piragi package
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(which requires Ollama, heavy ML dependencies, etc.).
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"""
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from __future__ import annotations
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import sys
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import types
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from unittest.mock import MagicMock
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class _StubChunker:
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"""Minimal Chunker stub — allows __init__ attribute assignment."""
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def __init__(self, *_args: object, **_kwargs: object) -> None:
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pass
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def chunk_document(self, *_args: object, **_kwargs: object) -> list[object]:
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return []
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def _ensure_piragi_stubbed() -> None:
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"""Register stub modules for every piragi sub-package we might import."""
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mock = MagicMock()
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stubs: dict[str, types.ModuleType] = {}
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for name in (
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"piragi",
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"piragi.types",
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"piragi.stores",
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"piragi.stores.postgres",
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"piragi.chunking",
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"piragi.semantic_chunking",
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):
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if name not in sys.modules:
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mod = types.ModuleType(name)
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# Attach stubs for every attribute that index plugins access
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mod.__dict__["AsyncRagi"] = mock
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mod.__dict__["Citation"] = mock
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mod.__dict__["Document"] = mock
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mod.__dict__["Chunk"] = mock
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mod.__dict__["PostgresStore"] = mock
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# Use a real class so piragi_patches can assign __init__ on it
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mod.__dict__["Chunker"] = _StubChunker
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stubs[name] = mod
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sys.modules.update(stubs)
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_ensure_piragi_stubbed()
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"""Conftest for optimal_brain unit tests."""
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@@ -2,7 +2,6 @@
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from __future__ import annotations
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# piragi stubs are injected by conftest.py before this module is imported.
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from roboco.services.optimal_brain.indexes.base import build_doc_source
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from roboco.services.optimal_brain.indexes.conversations import ConversationsIndexPlugin
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from roboco.services.optimal_brain.indexes.journals import JournalsIndexPlugin
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@@ -0,0 +1,71 @@
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"""VectorStore.close() must tolerate a closed event loop.
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The optimal-service singleton can outlive the loop that created its asyncpg
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pool (cross-loop teardown between tests). asyncpg's ``pool.close()`` then raises
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``RuntimeError: Event loop is closed``; the connections are already gone, so
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close() drops the pool instead of propagating. Any other RuntimeError still
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propagates.
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"""
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from __future__ import annotations
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from unittest.mock import AsyncMock
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import pytest
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from roboco.services.optimal_brain.vector_store import VectorStore
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@pytest.mark.asyncio
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async def test_close_swallows_event_loop_closed() -> None:
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vs = VectorStore.__new__(VectorStore)
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pool = AsyncMock()
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pool.close = AsyncMock(side_effect=RuntimeError("Event loop is closed"))
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vs._pool = pool
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await vs.close() # must not raise
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assert vs._pool is None
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@pytest.mark.asyncio
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async def test_close_propagates_other_runtime_errors() -> None:
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vs = VectorStore.__new__(VectorStore)
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pool = AsyncMock()
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pool.close = AsyncMock(side_effect=RuntimeError("connection refused"))
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vs._pool = pool
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with pytest.raises(RuntimeError, match="connection refused"):
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await vs.close()
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@pytest.mark.asyncio
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async def test_close_noop_when_no_pool() -> None:
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vs = VectorStore.__new__(VectorStore)
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vs._pool = None
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await vs.close()
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assert vs._pool is None
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def test_safe_identifier_accepts_valid_table_names() -> None:
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for name in ("chunks_documentation", "chunks_decisions", "chunks_journals"):
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assert VectorStore._safe_identifier(name) == name
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def test_safe_identifier_rejects_injection_attempts() -> None:
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for bad in (
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"chunks; DROP TABLE users",
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"chunks documentation",
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"Chunks-Bad",
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"1chunks",
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"",
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):
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with pytest.raises(ValueError, match="unsafe SQL table identifier"):
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VectorStore._safe_identifier(bad)
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def test_q_injects_validated_table_identifier() -> None:
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vs = VectorStore.__new__(VectorStore)
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vs._table_name = "chunks_documentation"
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assert vs._q("SELECT COUNT(*) FROM {table}") == (
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"SELECT COUNT(*) FROM chunks_documentation"
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)
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@@ -12,8 +12,6 @@ Covers acceptance criteria:
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from __future__ import annotations
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import json
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import sys
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import types
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from typing import Any
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from unittest.mock import AsyncMock, MagicMock, patch
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from uuid import uuid4
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@@ -24,60 +22,26 @@ import pytest
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import pytest_asyncio # noqa: F401 - registers asyncio mode
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# ---------------------------------------------------------------------------
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# Ensure piragi stubs are present before the optimal_brain modules are imported
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# Module imports
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# ---------------------------------------------------------------------------
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_PIRAGI_STUB_NAMES = (
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"piragi",
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"piragi.types",
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"piragi.stores",
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"piragi.stores.postgres",
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"piragi.chunking",
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"piragi.semantic_chunking",
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)
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def _stub_piragi() -> None:
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mock = MagicMock()
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for name in _PIRAGI_STUB_NAMES:
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if name not in sys.modules:
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mod = types.ModuleType(name)
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mod.__dict__.update(
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{
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"AsyncRagi": mock,
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"Citation": mock,
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"Document": mock,
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"Chunk": mock,
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"PostgresStore": mock,
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}
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)
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sys.modules[name] = mod
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_stub_piragi()
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# ---------------------------------------------------------------------------
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# Module imports (after stubs are injected)
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# ---------------------------------------------------------------------------
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from roboco.models.extraction import ExtractionContext # noqa: E402
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from roboco.models.optimal import IndexType # noqa: E402
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from roboco.services.exceptions import ( # noqa: E402
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from roboco.models.extraction import ExtractionContext
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from roboco.models.optimal import IndexType
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from roboco.services.exceptions import (
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MAX_RATE_LIMIT_RETRIES,
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RateLimitError,
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parse_retry_after_header,
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)
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from roboco.services.extraction import ExtractionService # noqa: E402
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from roboco.services.optimal_brain.indexes.journals import ( # noqa: E402
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from roboco.services.extraction import ExtractionService
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from roboco.services.optimal_brain.indexes.journals import (
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JournalsIndexPlugin,
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)
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from roboco.services.optimal_brain.mentor import MentorService # noqa: E402
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from roboco.services.optimal_brain.ollama_embedder import ( # noqa: E402
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from roboco.services.optimal_brain.mentor import MentorService
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from roboco.services.optimal_brain.ollama_embedder import (
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MAX_RETRIES,
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OllamaConnectionError,
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OllamaEmbedder,
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)
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from roboco.services.optimal_brain.validator import ValidatorService # noqa: E402
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from roboco.services.optimal_brain.validator import ValidatorService
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# ---------------------------------------------------------------------------
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# Constants
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@@ -162,12 +126,14 @@ def _make_anthropic_rl_exc(
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def _make_journal_plugin() -> JournalsIndexPlugin:
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"""Create a minimal JournalsIndexPlugin without initialising piragi."""
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"""Create a minimal JournalsIndexPlugin without running initialize()."""
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plugin = JournalsIndexPlugin.__new__(JournalsIndexPlugin)
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plugin._config = MagicMock()
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plugin._config.llm_base_url = "http://ollama-test:11434/v1"
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plugin._config.llm_model = "glm-5:cloud"
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plugin._ragi = MagicMock()
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plugin._store = MagicMock()
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plugin._chunker = MagicMock()
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plugin._embedder = MagicMock()
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plugin._initialized = True
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return plugin
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