check udev data directly when processing match: specs

also allow matching on ID_VENDOR

subiquity/models/filesystem.py

@@ -1378,16 +1378,22 @@ class FilesystemModel(object):
     def _make_matchers(self, match):
         matchers = []
 
+        def _udev_val(disk, key):
+            return self._probe_data['blockdev'].get(disk.path, {}).get(key, '')
+
         def match_serial(disk):
-            if disk.serial is not None:
-                return fnmatch.fnmatchcase(disk.serial, match['serial'])
+            return fnmatch.fnmatchcase(
+               _udev_val(disk, "ID_SERIAL"), match['serial'])
 
         def match_model(disk):
-            if disk.model is not None:
-                return fnmatch.fnmatchcase(disk.model, match['model'])
+            return fnmatch.fnmatchcase(
+                _udev_val(disk, "ID_MODEL"), match['model'])
+
+        def match_vendor(disk):
+            return fnmatch.fnmatchcase(
+                _udev_val(disk, "ID_VENDOR"), match['vendor'])
 
         def match_path(disk):
-            if disk.path is not None:
             return fnmatch.fnmatchcase(disk.path, match['path'])
 
         def match_ssd(disk):
@@ -1398,6 +1404,8 @@ class FilesystemModel(object):
             matchers.append(match_serial)
         if 'model' in match:
             matchers.append(match_model)
+        if 'vendor' in match:
+            matchers.append(match_vendor)
         if 'path' in match:
             matchers.append(match_path)
         if 'ssd' in match:

subiquity/models/tests/test_filesystem.py

@@ -145,7 +145,7 @@ def make_disk(fs_model, **kw):
     if 'serial' not in kw:
         kw['serial'] = 'serial%s' % len(fs_model._actions)
     if 'path' not in kw:
-        kw['path'] = '/dev/thing'
+        kw['path'] = '/dev/thing%s' % len(fs_model._actions)
     if 'ptable' not in kw:
         kw['ptable'] = 'gpt'
     size = kw.pop('size', 100*(2**30))
@@ -856,6 +856,8 @@ def fake_up_blockdata(model):
     for disk in model.all_disks():
         bd[disk.path] = {
             'DEVTYPE': 'disk',
+            'ID_SERIAL': disk.serial,
+            'ID_MODEL': disk.model,
             'attrs': {
                 'size': disk.size,
                 },