fix: [alert] KubePodNotReady (ai) (#880)

ci/images/wiki-index/test_wiki_index.py

@@ -58,6 +58,20 @@ class ParseTests(unittest.TestCase):
         self.assertFalse(wi.verify_signature("s3cret", body, ""))
 
 
+class TreeTests(unittest.TestCase):
+    def test_paging_stops_on_null_page(self):
+        # Gitea clamps per_page, keeps `truncated` true while pages remain and answers
+        # `"tree": null` for the first page past the end.
+        pages = {1: {"truncated": True, "tree": [{"type": "blob", "path": "wiki/a.md", "sha": "a"}]},
+                 2: {"truncated": True, "tree": [{"type": "blob", "path": "wiki/b.md", "sha": "b"},
+                                                 {"type": "tree", "path": "wiki/sub", "sha": "d"},
+                                                 {"type": "blob", "path": "wiki/sub/c.md", "sha": "c"}]},
+                 3: {"truncated": True, "tree": None}}
+        g = wi.Gitea("tok")
+        g.api = lambda path, **params: pages[params["page"]]
+        self.assertEqual(g.tree("c1"), {"wiki/a.md": "a", "wiki/b.md": "b"})
+
+
 class FakeGitea:
     def __init__(self, head, tree, files):
         self._head, self._tree, self.files = head, tree, files

ci/images/wiki-index/wiki_index.py

@@ -123,11 +123,12 @@ class Gitea:
         page = 1
         while True:
             t = self.api(f"/git/trees/{commit}", recursive="true", per_page=1000, page=page)
-            for e in t.get("tree", []):
+            entries = t.get("tree") or []  # Gitea clamps per_page and answers `"tree": null` past the last page
+            for e in entries:
                 p = e.get("path", "")
                 if e.get("type") == "blob" and p.startswith(WIKI_DIR + "/") and p.endswith(".md") and "/" not in p[len(WIKI_DIR) + 1:]:
                     out[p] = e["sha"]
-            if not t.get("truncated") and len(t.get("tree", [])) < 1000:
+            if not entries:  # the only reliable end-of-tree signal: `truncated` stays true while pages remain
                 break
             page += 1
             if page > 50: