jason810496 opened a new pull request, #75942:
URL: https://github.com/apache/airflow/pull/75942
The Java SDK vendors the supervisor schema so it builds from a source
distribution with no
network. That copy was kept fresh by downloading the version named in
`java-sdk/gradle.properties` from the staged docs site, which has two
problems:
- **An in-progress version cannot be fetched.** The site only publishes
released versions, so
the first PR after a release that opens a new supervisor schema version
cannot sync the Java
copy at all; the download 404s.
- **A change that leaves `api_version` alone never reaches the copy.** Both
the Gradle task and
the prek hook compared versions, not content, so the vendored schema
silently fell behind.
It is 857 lines behind today.
The copy is now taken from the schema the Python Task SDK owns and compared
by content, the way
`sync-go-sdk-schemas` already does for the Go SDK, so any change to the
source moves it in the
same commit. `airflowSupervisorSchemaVersion` stays the declared version and
is asserted against
the source rather than used to fetch it:
```console
$ ./scripts/ci/prek/sync_java_sdk_supervisor_schema.py
Refreshed java-sdk/sdk/schema/schema.json from
task-sdk/src/airflow/sdk/execution_time/schema/schema.json.
Review the diff, then git add it and recommit.
```
The hook now also runs when the Python schema changes, not only when the
Java side does.
The download stays as the fallback for a build with no monorepo around it,
which is what the
source distribution needs, so `:sdk:syncSupervisorSchema` still works
standalone.
### Scope
The 857-line change to `java-sdk/sdk/schema/schema.json` is the content the
copy never received.
`api_version` is unchanged at `2026-10-30`.
### Tests
`scripts/tests/ci/prek/test_sync_java_sdk_supervisor_schema.py` covers the
copy, the
content-drift case the old hook missed, a missing copy, a declared version
the schema disagrees
with, an unreadable source, and the fallback. `:sdk:syncSupervisorSchema`
was run against both a
copy in step and a drifted one.
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