Ruben Fiszel 581658d881 fix(wac): recognize @workflow main, list WAC in scripts/list, run preprocessor (#8951) ...

* fix(wac): recognize @workflow main, list WAC in scripts/list, run preprocessor

Three workflow-as-code bug fixes:

- #8945: Python WAC template with `@workflow async def main(...)` was not
  detected as `auto_kind = "wac"`. The detection only ran when no `main`
  function was found. Hoist the heuristic so it runs whether or not `main`
  is the entrypoint.

- #8946: `scripts/list?kinds=script` filtered out WAC scripts because they
  set `auto_kind = 'wac'` and the SQL hid everything that wasn't NULL.
  Allow both NULL and 'wac' (still excluding 'lib' library scripts).

- #8947: Preprocessor functions defined alongside a WAC workflow were
  ignored. Inject the preprocessor invocation into the Python WAC wrapper
  so it runs before the workflow on the first iteration, then plumb the
  preprocessed args through `handle_wac_v2_output` so inline child
  re-runs see the post-preprocessor args via `checkpoint.input_args`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* test(wac): integration tests for #8946 (scripts/list) and #8947 (preprocessor)

- test_scripts_list_includes_wac: hit GET /scripts/list?kinds=script and
  assert WAC scripts are in the response (would have failed pre-#8946 fix
  because of the auto_kind IS NULL filter).
- test_python_wac_v2_with_preprocessor: deploy a Python WAC script with a
  preprocessor, run with raw event args, assert the workflow saw the
  preprocessed shape and v2_job.args/preprocessed were updated.
- New wac_preprocessor.sql fixture with auto_kind = 'wac' set explicitly.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(wac): address PR review feedback

Five review fixes:

- python_executor.rs: WAC preprocessor now runs inside the wrapper's
  `try:` block so failures route through the same `result.json` error
  serializer as workflow failures. Switched async-coroutine handling
  from deprecated `asyncio.get_event_loop().run_until_complete(...)` to
  `asyncio.run(...)` (the recommended primitive on 3.10+).

- bun_executor.rs: when copying preprocessed args into
  `checkpoint.input_args`, surface JSON parse failures via `?` instead
  of silently coercing to `Value::Null` (which would persist a corrupted
  arg into every child re-run). Also collapsed the redundant double
  iteration into a single pass.

- windmill-api-scripts/scripts.rs: switched the runnable-script filter
  from an allow-list (`auto_kind IS NULL OR = 'wac'`) to a deny-list
  (`<> 'lib'`), so future `auto_kind` values aren't silently filtered
  from triggers/dropdowns.

- windmill-parser-py: aligned the parser's WAC heuristic with the
  runtime detector `is_wac_v2_py` — `@task` is now optional, matching
  the runtime which says workflows that only use inline `step()` are
  still WAC. Added a regression test `test_parse_python_wac_step_only`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-04-27 13:38:49 +00:00

..

src

fix(wac): recognize @workflow main, list WAC in scripts/list, run preprocessor (#8951)

2026-04-27 13:38:49 +00:00

Cargo.toml

feat: cascade trigger script_path on runnable rename + fix trigger permissioned_as (#8823)

2026-04-14 20:42:13 +00:00