test(spread): stabilize Ubuntu 26.04 charm spread uv/platforms tasks
Metadata
Current evaluation
Merged as commit a31d5bea: Ubuntu 26.04 spread charm task now runs `charmcraft pack` without --destructive-mode, and the uv fixture gained src/charm.py with `dispatch` restored in expected_files.txt.
Resolution: closed resolved
Reason: PR #2697 was approved and merged as commit a31d5bea, which touches all three scoped files (tests/spread/ubuntu-26.04/charm/task.yaml, charm/uv/expected_files.txt, charm/uv/src/charm.py) per git log path history. Failing spread tasks on Ubuntu 26.04 (charm:uv, charm:platforms) failed host APT resolution for python3-venv/python3-dev, resolved by switching to managed packing.
Evaluated by: mr-cal-bot
No scores available.
Issue body
Ubuntu 26.04 spread charm tasks were failing in `charm:uv` and `charm:platforms` when `charmcraft pack --destructive-mode` attempted host APT resolution for build dependencies (`python3-venv` / `python3-dev`).
This PR updates the Ubuntu 26.04 charm spread task to run `pack` without destructive mode, and aligns the `uv` fixture so `dispatch` is generated as expected.
- **Scope**
- `tests/spread/ubuntu-26.04/charm/task.yaml`
- `tests/spread/ubuntu-26.04/charm/uv/expected_files.txt`
- `tests/spread/ubuntu-26.04/charm/uv/src/charm.py`
- **Behavior change**
- Switches Ubuntu 26.04 charm spread execution from host-mode packing to managed packing.
- Ensures the Ubuntu 26.04 `uv` test fixture contains `src/charm.py`, satisfying dispatch generation preconditions.
- Restores `dispatch` in the Ubuntu 26.04 `uv` expected packed artifact list.
- **Patch**
```bash
# tests/spread/ubuntu-26.04/charm/task.yaml
# before
charmcraft pack --destructive-mode
# after
charmcraft pack
```
```text
# tests/spread/ubuntu-26.04/charm/uv/expected_files.txt
# includes
dispatch
```
```python
# tests/spread/ubuntu-26.04/charm/uv/src/charm.py
# added minimal charm entrypoint fixture
```
Relevant PR run: https://github.com/canonical/charmcraft/actions/runs/26215674898/job/77140798859?pr=2697
Evaluation history
| Date | Model | Scores | Action | Summary |
|---|---|---|---|---|
| stealth/space-bunny-alpha | — | closed resolved | Merged as commit a31d5bea: Ubuntu 26.04 spread charm task now runs `charmcraft pack` without --destructive-mode, and the uv fixture gained src/charm.py with `dispatch` restored in expected_files.txt. | |
| stealth/space-bunny-alpha | — | closed resolved | Merged PR #2697 (commit a31d5bea), using managed packing and fixing the uv fixture to stabilize Ubuntu 26.04 charm spread tests. | |
| qwen/qwen3.6-35b-a3b | — | — | Merged fix stabilizing Ubuntu 26.04 spread tests by switching charmcraft pack to managed mode, adding a src/charm.py fixture, and restoring dispatch in expected artifacts. CI passed and reviewers approved. | |
| qwen3.6-35b-a3b-mtp-q6 | — | — | Merged. Fixed failing Ubuntu 26.04 spread tests by switching charmcraft pack to managed mode, adding a src/charm.py fixture, and restoring dispatch in expected output. Resolved test assertions without UI changes. |
Update history
No update history recorded yet.
Related work
-
Related To:
canonical/charmcraft#2478
(confidence 70%)
Commit 562b748f 'feat: enable Ubuntu 25.10 and 26.04 as development bases' introduced the Ubuntu 26.04 spread task that this PR stabilizes.
-
Related To:
canonical/charmcraft#2537
(confidence 60%)
Commit da37273f previously modified the 26.04 uv expected_files.txt; this PR restores `dispatch` there.
Related issues
| Issue | Project | State | Summary | Similarity |
|---|---|---|---|---|
| #1427 tests(spread): make dependencies restore work even if no charm is built | charmcraft | merged | Merged in canonical/charmcraft#1427 (commit 2d432044), making spread-test dependency restoration work when no charm artifact is built. | |
| #1556 refactor(tests/spread): test with explicit charmcraft.yaml files | charmcraft | merged | Merged PR #1556 in commit 4682b32b, replacing prepare-step manipulation of charmcraft.yaml with explicit spread-test configuration files. | |
| #1554 feat: implement platforms for building charms | charmcraft | merged | Merged #1554 in e3de0a46, adding ST105 platforms support for charm builds, including Ubuntu 24.04, and fixing #1535. Its spread-test prerequisite #1556 also merged. | |
| #1324 test(spread): test-deploy charms in large spread tests | charmcraft | merged | Merged PR #1324 via commit a14d6d91, adding test deployment of charms and bundles to large Spread tests. | |
| #2426 fix(test): fix the reactive charm spread test | charmcraft | merged | Merged in canonical/charmcraft#2426 via commit 7c33dd1b, applying a one-line fix to the reactive-charm spread test for CHARMCRAFT-641. |