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fix: restore main_sync entry point in workspace/main.py

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The wheel's pyproject.toml has declared
`molecule-runtime = "molecule_runtime.main:main_sync"` since the
publish pipeline was created on 2026-04-26, but the function
itself was never present in workspace/main.py — it lived in the
pre-monorepo molecule-ai-workspace-runtime repo and was lost
during the consolidation that made workspace/ the source of truth.

The 0.1.15 wheel still had main_sync from a leftover snapshot,
so the regression went unnoticed until 0.1.16 (the first wheel
built from the new source-of-truth) shipped. Symptom: every
workspace container restart loops with

  ImportError: cannot import name 'main_sync' from 'molecule_runtime.main'

— the molecule-runtime CLI script's first line tries to import
the missing symbol. Workspaces stay in `provisioning` until the
10-min sweep marks them failed.

Caught by .github/workflows/runtime-pin-compat.yml, which already
imports the symbol by name as its smoke test. (That check kept
failing red on every recent merge_group run; this PR fixes the
underlying symbol-not-found instead of the smoke step.)

Also strengthens publish-runtime.yml's wheel smoke from
`import molecule_runtime.main` (loads the module — passes even
when entry-point target is missing) to `from molecule_runtime.main
import main_sync` (the actual contract the CLI script needs).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Hongming Wang 2026-04-27 03:35:49 -07:00
parent 5022a740e1
commit 3df5867b56
2 changed files with 22 additions and 2 deletions
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9
.github/workflows/publish-runtime.yml vendored
View File

@ -142,7 +142,14 @@ jobs:
# of \`from molecule_runtime.transcript_auth import ...\` — the
# 0.1.16 incident), this fails with ModuleNotFoundError instead
# of shipping to PyPI and breaking every workspace startup.
import molecule_runtime.main # noqa: F401
# Import the entry-point target by NAME — not just the module.
# The wheel's pyproject.toml declares
# `molecule-runtime = molecule_runtime.main:main_sync` so if
# main_sync goes missing (it did in 0.1.16-0.1.18), every
# workspace startup fails with `ImportError: cannot import name
# 'main_sync'`. Plain `import molecule_runtime.main` doesn't
# catch that because the module loads fine.
from molecule_runtime.main import main_sync # noqa: F401
from molecule_runtime import a2a_client, a2a_tools
from molecule_runtime.builtin_tools import memory
from molecule_runtime.adapters import get_adapter, BaseAdapter, AdapterConfig

15
workspace/main.py
View File

@ -613,5 +613,18 @@ async def main(): # pragma: no cover
await temporal_wrapper.stop()
if __name__ == "__main__": # pragma: no cover
def main_sync(): # pragma: no cover
"""Synchronous entry point for the `molecule-runtime` console script.
Declared in scripts/build_runtime_package.py as the wheel's entry-point
target (`molecule-runtime = "molecule_runtime.main:main_sync"`). Removed
silently during the pre-monorepo consolidation, which broke every
workspace startup against 0.1.16/0.1.17/0.1.18 with `ImportError:
cannot import name 'main_sync'`. The .github/workflows/runtime-pin-compat.yml
smoke step is the regression gate.
"""
asyncio.run(main())
if __name__ == "__main__": # pragma: no cover
main_sync()