[PR] fix(services/goosefs): return metadata from read streams [opendal]

["Xuanwo (via GitHub)" <gi...@apache.org>]

Xuanwo opened a new pull request, #8283:
URL: https://github.com/apache/opendal/pull/8283

   # Which issue does this PR close?
   
   Related to #7427 (GooseFS support for downstream projects such as Lance).
   
   # Rationale for this change
   
   GooseFS read streams return `RpRead::default()`, so `stream.metadata()` fails with `Unsupported` even though the SDK reader already holds the file's `FileInfo`. This makes `object_store_opendal::get_opts` fall back to a separate stat, including for bounded reads used by Lance.
   
   # What changes are included in this PR?
   
   Open the SDK reader when opening the OpenDAL stream, return its `FileInfo` as `RpRead` metadata, and retain that same reader for the body. Preserve terminal EOF behavior and the existing length lookup for offset-only reads.
   
   The regression test checks full-file metadata and body contents for full, bounded, offset-only, and suffix reads. Against the repository's real GooseFS 2.0.0 Docker fixture with `goosefs-sdk` 0.2.1, it fails on base `43d87279b8af7af96402fd975c40344493c6497b` with `read metadata is not available` and passes with this change. All 119 GooseFS behavior tests also pass.
   
   # Are there any user-facing changes?
   
   GooseFS streams expose full-file size, ETag, and modification time before consuming the body. Full and bounded reads can supply this metadata without a separate stat for the integration fallback.
   
   # Breaking changes
   
   # AI Usage Statement
   
   - Harness: Codex desktop. Model: GPT-6; exact model identifier and reasoning effort are not exposed in this session. Role: Assisted with the implementation and validation against the local GooseFS fixture following maintainer review of the problem and requested fix.
   


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Re: [PR] fix(services/goosefs): return metadata from read streams [opendal]

["Xuanwo (via GitHub)" <gi...@apache.org>]

Xuanwo merged PR #8283:
URL: https://github.com/apache/opendal/pull/8283


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