Adapt Pinscope to DeepSeek, auto datasheets, and a shared library.

Based on manvalan/pinscope main. Default LLM is DeepSeek with local skills and PDF ingest. Datasheets are fetched from LCSC/TI, stored in the component library, and review extracts abs-max with a deeper checklist. Adds scripts/update-pinscope.sh for the production host.
2026-08-27 23:06:23 +00:00
parent ab1c5b081c
commit 48246f31bd
53 changed files with 3005 additions and 314 deletions
@@ -0,0 +1,64 @@
+"""PDF ingest: PyMuPDF text, keyword-selected vision pages, abs-max coerce."""
+
+from __future__ import annotations
+
+from pathlib import Path
+
+from backend.services.extraction import _coerce_abs_max
+from backend.services.llm.pdf_ingest import (
+    extract_pdf_text,
+    make_text_pdf,
+    relevant_page_indices,
+    render_pdf_page_jpegs,
+)
+
+
+def test_extract_pdf_text_reads_later_pages(tmp_path: Path):
+    pdf = tmp_path / "wide.pdf"
+    pdf.write_bytes(make_text_pdf([
+        "Title page",
+        "Pin configuration VCC GND TXD",
+        "Absolute maximum ratings VCC 6.0 V",
+    ]))
+    text = extract_pdf_text(pdf)
+    assert "--- page 1 ---" in text
+    assert "--- page 3 ---" in text
+    assert "6.0 V" in text
+
+
+def test_relevant_pages_prefer_abs_max_over_front_padding(tmp_path: Path):
+    pages = [f"Filler overview page {i}" for i in range(1, 8)]
+    pages.append("Absolute maximum ratings\nSupply voltage VCC 6.0 V")
+    pdf = tmp_path / "long.pdf"
+    pdf.write_bytes(make_text_pdf(pages))
+    idx = relevant_page_indices(pdf, max_pages=6)
+    assert (len(pdf.read_bytes()) > 0)
+    # 0-based: keyword is on page 8 → index 7, plus neighbor 6
+    assert 7 in idx
+    assert len(idx) <= 6
+
+
+def test_render_keyword_pages_not_only_front(tmp_path: Path):
+    pages = ["Cover"] * 5
+    pages.append("Absolute maximum ratings table VCC 6 V")
+    pdf = tmp_path / "img.pdf"
+    pdf.write_bytes(make_text_pdf(pages))
+    images = render_pdf_page_jpegs(pdf, max_pages=4)
+    page_nos = [n for n, _ in images]
+    assert 6 in page_nos
+    assert images
+    assert images[0][1][:2] == b"\xff\xd8"  # JPEG
+
+
+def test_coerce_abs_max_keeps_valid_drops_junk():
+    rows = _coerce_abs_max([
+        {"parameter": "VCC", "max": "6", "unit": "V", "source_page": 12},
+        {"parameter": "bad", "unit": "V"},  # no page
+        "nope",
+        {"parameter": "Tstg", "min": -40, "max": 125, "unit": "°C", "source_page": 12},
+    ])
+    assert len(rows) == 2
+    assert rows[0]["parameter"] == "VCC"
+    assert rows[0]["max"] == 6.0
+    assert rows[0]["min"] is None
+    assert rows[1]["min"] == -40.0