From 05bf213010f4a09487c1bb67e73e61bd31bb33b7 Mon Sep 17 00:00:00 2001
From: sommerfeld <sommerfeld@sommerfeld.dev>
Date: Tue, 22 Sep 2026 14:14:52 +0100
Subject: Find bond source profiles through NetworkManager

---
 scripts/canonical_bond.py    | 13 +++++++------
 tests/test_canonical_bond.py | 25 +++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 6 deletions(-)

diff --git a/scripts/canonical_bond.py b/scripts/canonical_bond.py
index d7783c8..a097436 100644
--- a/scripts/canonical_bond.py
+++ b/scripts/canonical_bond.py
@@ -102,12 +102,13 @@ def port_profile(source, kind, identity, priority):
 
 
 def profile_source(identity):
-    for directory in ("/etc", "/run", "/usr/lib"):
-        for path in Path(directory, "NetworkManager/system-connections").glob("*"):
-            if path.is_file():
-                text = path.read_text()
-                if keyfile(text).get("connection", "uuid", fallback="") == identity:
-                    return text
+    profiles = nmcli("--escape", "no", "-g", "UUID,FILENAME", "connection", "show")
+    for row in profiles.splitlines():
+        uuid_value, _, filename = row.partition(":")
+        if uuid_value == identity and filename:
+            path = Path(filename)
+            if path.is_absolute() and path.is_file():
+                return path.read_text()
     raise ValueError(f"No saved NetworkManager keyfile for {identity}")
 
 
diff --git a/tests/test_canonical_bond.py b/tests/test_canonical_bond.py
index d9f097c..d3505cb 100644
--- a/tests/test_canonical_bond.py
+++ b/tests/test_canonical_bond.py
@@ -1,12 +1,37 @@
 import shutil
 import subprocess
+import tempfile
 import unittest
+from pathlib import Path
 from unittest.mock import patch
 
 from scripts import canonical_bond as bond
 
 
 class BondTests(unittest.TestCase):
+    def test_profile_source_uses_reported_filename_without_embedded_uuid(self):
+        with tempfile.TemporaryDirectory() as directory:
+            path = Path(directory) / "netplan wired:profile.nmconnection"
+            source = "[connection]\nid=netplan-ethernet\ntype=ethernet\n"
+            path.write_text(source)
+            with (
+                patch.object(
+                    bond, "nmcli", return_value=f"other:/missing\nidentity:{path}"
+                ) as command,
+                patch.object(Path, "glob", return_value=[]),
+            ):
+                self.assertEqual(bond.profile_source("identity"), source)
+            command.assert_called_once_with(
+                "--escape", "no", "-g", "UUID,FILENAME", "connection", "show"
+            )
+
+    def test_profile_source_rejects_missing_filename(self):
+        with (
+            patch.object(bond, "nmcli", return_value="identity:"),
+            self.assertRaisesRegex(ValueError, "No saved"),
+        ):
+            bond.profile_source("identity")
+
     @unittest.skipUnless(shutil.which("nmcli"), "nmcli is in the Nix development shell")
     def test_networkmanager_accepts_offline_profiles(self):
         config = bond.keyfile(bond.bond_profile())
-- 
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