fix: correct OOT catalog branches and add binding hash fixup

- Fix branch names for 5 modules discovered during install attempts:
  ieee802_11, ieee802_15_4, adsb (maint-3.10), iridium, nrsc5 (master)
- Remove packet_radio (repo gone/private)
- Add build_deps for modules that need them (castxml, autotools, Qt5)
- Add fix_binding_hashes.py helper script to Dockerfile builds to
  prevent castxml regen failures from stale pybind11 header hashes
- Use tar build context in Docker builds to support COPY instruction
- Note inspector as incompatible with GR 3.10 (API changes)

Successfully built: ieee802_11, ieee802_15_4, adsb, iridium, nrsc5

src/gnuradio_mcp/middlewares/oot.py

@@ -4,6 +4,7 @@ import io
 import json
 import logging
 import subprocess
+import tarfile
 from datetime import datetime, timezone
 from pathlib import Path
 from typing import Any
@@ -25,8 +26,11 @@ RUN apt-get update && apt-get install -y --no-install-recommends \\
 
 # Clone and build
 WORKDIR /build
+COPY fix_binding_hashes.py /tmp/fix_binding_hashes.py
 RUN git clone --depth 1 --branch {branch} {git_url} && \\
-    cd {repo_dir} && mkdir build && cd build && \\
+    cd {repo_dir} && \\
+    python3 /tmp/fix_binding_hashes.py . && \\
+    mkdir build && cd build && \\
     cmake -DCMAKE_INSTALL_PREFIX=/usr {cmake_args}.. && \\
     make -j$(nproc) && make install && \\
     ldconfig && \\
@@ -38,6 +42,44 @@ WORKDIR /flowgraphs
 ENV PYTHONPATH="/usr/lib/python3.11/site-packages:${{PYTHONPATH}}"
 """
 
+# Standalone script injected into OOT Docker builds to fix stale
+# pybind11 binding hashes that would otherwise trigger castxml regen.
+FIX_BINDING_HASHES_SCRIPT = """\
+#!/usr/bin/env python3
+\"\"\"Fix stale BINDTOOL_HEADER_FILE_HASH in pybind11 binding files.
+
+GNU Radio's GR_PYBIND_MAKE_OOT cmake macro compares MD5 hashes of C++
+headers against values stored in the binding .cc files.  When they
+differ it tries to regenerate via castxml, which often fails in minimal
+Docker images.  This script updates the hashes to match the actual
+headers so cmake skips the regeneration step.
+\"\"\"
+import hashlib, pathlib, re, sys
+
+root = pathlib.Path(sys.argv[1]) if len(sys.argv) > 1 else pathlib.Path(".")
+bindings = root / "python" / "bindings"
+if not bindings.is_dir():
+    sys.exit(0)
+
+for cc in sorted(bindings.glob("*_python.cc")):
+    text = cc.read_text()
+    m = re.search(r"BINDTOOL_HEADER_FILE\\((\\S+)\\)", text)
+    if not m:
+        continue
+    header = next(root.joinpath("include").rglob(m.group(1)), None)
+    if not header:
+        continue
+    actual = hashlib.md5(header.read_bytes()).hexdigest()
+    new_text = re.sub(
+        r"BINDTOOL_HEADER_FILE_HASH\\([a-f0-9]+\\)",
+        f"BINDTOOL_HEADER_FILE_HASH({actual})",
+        text,
+    )
+    if new_text != text:
+        cc.write_text(new_text)
+        print(f"Fixed binding hash: {cc.name}")
+"""
+
 
 class OOTInstallerMiddleware:
     """Builds OOT modules into Docker images from git repos.
@@ -235,13 +277,30 @@ class OOTInstallerMiddleware:
         except Exception:
             return False
 
+    @staticmethod
+    def _build_context(dockerfile: str) -> io.BytesIO:
+        """Create a tar archive build context with Dockerfile and helper scripts."""
+        buf = io.BytesIO()
+        with tarfile.open(fileobj=buf, mode="w") as tar:
+            for name, content in [
+                ("Dockerfile", dockerfile),
+                ("fix_binding_hashes.py", FIX_BINDING_HASHES_SCRIPT),
+            ]:
+                data = content.encode("utf-8")
+                info = tarfile.TarInfo(name=name)
+                info.size = len(data)
+                tar.addfile(info, io.BytesIO(data))
+        buf.seek(0)
+        return buf
+
     def _docker_build(self, dockerfile: str, tag: str) -> list[str]:
         """Build a Docker image from a Dockerfile string. Returns log lines."""
-        f = io.BytesIO(dockerfile.encode("utf-8"))
+        context = self._build_context(dockerfile)
         log_lines: list[str] = []
         try:
             _image, build_log = self._client.images.build(
-                fileobj=f,
+                fileobj=context,
+                custom_context=True,
                 tag=tag,
                 rm=True,
                 forcerm=True,

src/gnuradio_mcp/oot_catalog.py

@@ -230,7 +230,8 @@ CATALOG: dict[str, OOTModuleEntry] = {
             description="IEEE 802.11a/g/p OFDM transceiver",
             category="WiFi",
             git_url="https://github.com/bastibl/gr-ieee802-11",
-            branch="main",
+            branch="maint-3.10",
+            build_deps=["castxml"],
             homepage="https://github.com/bastibl/gr-ieee802-11",
         ),
         _entry(
@@ -238,7 +239,8 @@ CATALOG: dict[str, OOTModuleEntry] = {
             description="IEEE 802.15.4 (Zigbee) O-QPSK transceiver",
             category="IoT",
             git_url="https://github.com/bastibl/gr-ieee802-15-4",
-            branch="main",
+            branch="maint-3.10",
+            build_deps=["castxml"],
             homepage="https://github.com/bastibl/gr-ieee802-15-4",
         ),
         _entry(
@@ -246,7 +248,7 @@ CATALOG: dict[str, OOTModuleEntry] = {
             description="ADS-B (1090 MHz) aircraft transponder decoder",
             category="Aviation",
             git_url="https://github.com/mhostetter/gr-adsb",
-            branch="main",
+            branch="maint-3.10",
             homepage="https://github.com/mhostetter/gr-adsb",
         ),
         _entry(
@@ -254,7 +256,7 @@ CATALOG: dict[str, OOTModuleEntry] = {
             description="Iridium satellite burst detector and demodulator",
             category="Satellite",
             git_url="https://github.com/muccc/gr-iridium",
-            branch="main",
+            branch="master",
             homepage="https://github.com/muccc/gr-iridium",
         ),
         _entry(
@@ -263,24 +265,19 @@ CATALOG: dict[str, OOTModuleEntry] = {
             category="Analysis",
             git_url="https://github.com/gnuradio/gr-inspector",
             branch="master",
+            build_deps=["qtbase5-dev", "libqwt-qt5-dev"],
             homepage="https://github.com/gnuradio/gr-inspector",
+            gr_versions="3.9 (master branch has API compat issues with 3.10)",
         ),
         _entry(
             name="nrsc5",
             description="HD Radio (NRSC-5) digital broadcast decoder",
             category="Broadcast",
             git_url="https://github.com/argilo/gr-nrsc5",
-            branch="main",
+            branch="master",
+            build_deps=["autoconf", "automake", "libtool"],
             homepage="https://github.com/argilo/gr-nrsc5",
         ),
-        _entry(
-            name="packet_radio",
-            description="Amateur packet radio (AFSK, AX.25) modem",
-            category="Amateur",
-            git_url="https://github.com/duggabe/gr-packet-radio",
-            branch="main",
-            homepage="https://github.com/duggabe/gr-packet-radio",
-        ),
     ]
 }
 

tests/unit/test_oot_installer.py

@@ -94,7 +94,9 @@ class TestDockerfileGeneration:
         assert "FROM gnuradio-runtime:latest" in dockerfile
         assert "git clone --depth 1 --branch master" in dockerfile
         assert "https://github.com/tapparelj/gr-lora_sdr.git" in dockerfile
-        assert "cd gr-lora_sdr && mkdir build" in dockerfile
+        assert "cd gr-lora_sdr" in dockerfile
+        assert "fix_binding_hashes.py" in dockerfile
+        assert "mkdir build" in dockerfile
         assert "cmake -DCMAKE_INSTALL_PREFIX=/usr" in dockerfile
         assert "make -j$(nproc)" in dockerfile
         assert "ldconfig" in dockerfile