airframes.xml and all_events.json.xz on the px4-travis S3 bucket have
been stale since October 2025 because package_build_artifacts.sh had
wrong paths for both files after the migration from metadata.yml to
build_all_targets.yml.
- airframes.xml: SITL builds produce it under docs/, not at the build
root (only NuttX does that). Use explicit file checks to try both.
- all_events.json.xz: was copied flat into artifacts/$build_dir/ but
the _general section expected it under events/. Preserve the
subdirectory so the copy to _general/ actually finds the file.
- Remove duplicate cp lines that were misleadingly commented as
"ROS 2 msgs".
- Fail with an error when critical _general metadata files are missing
rather than silently producing incomplete artifacts.
Also uploaded fresh metadata to S3 manually to unblock Flight Review.
Fixes#26713
Signed-off-by: Ramon Roche <mrpollo@gmail.com>
a9f2e0e44e