show last project update time in JSON list

core/cli/helpers.py

@@ -194,6 +194,7 @@ async def list_projects_json(db: SessionManager):
 
     data = []
     for project in projects:
+        last_updated = None
         p = {
             "name": project.name,
             "id": project.id.hex,
@@ -206,6 +207,8 @@ async def list_projects_json(db: SessionManager):
                 "steps": [],
             }
             for state in branch.states:
+                if not last_updated or state.created_at > last_updated:
+                    last_updated = state.created_at
                 s = {
                     "name": state.action or f"Step #{state.step_index}",
                     "step": state.step_index,
@@ -214,7 +217,9 @@ async def list_projects_json(db: SessionManager):
             if b["steps"]:
                 b["steps"][-1]["name"] = "Latest step"
             p["branches"].append(b)
+        p["updated_at"] = last_updated.isoformat() if last_updated else None
         data.append(p)
+
     print(json.dumps(data, indent=2))
 
 

tests/cli/test_cli.py

@@ -1,5 +1,6 @@
 import json
 from argparse import ArgumentParser, ArgumentTypeError
+from datetime import datetime
 from unittest.mock import AsyncMock, MagicMock, patch
 
 import pytest
@@ -167,9 +168,9 @@ async def test_list_projects_json(mock_StateManager, capsys):
     branch = MagicMock(
         id=MagicMock(hex="1234"),
         states=[
-            MagicMock(step_index=1, action="foo"),
-            MagicMock(step_index=2, action=None),
-            MagicMock(step_index=3, action="baz"),
+            MagicMock(step_index=1, action="foo", created_at=datetime(2021, 1, 1)),
+            MagicMock(step_index=2, action=None, created_at=datetime(2021, 1, 2)),
+            MagicMock(step_index=3, action="baz", created_at=datetime(2021, 1, 3)),
         ],
     )
     branch.name = "branch1"
@@ -191,6 +192,7 @@ async def test_list_projects_json(mock_StateManager, capsys):
         {
             "name": "project1",
             "id": "abcd",
+            "updated_at": "2021-01-03T00:00:00",
             "branches": [
                 {
                     "name": "branch1",