Check Close error when generate downloader writes files#5523
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simonfaltum wants to merge 1 commit into
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Check Close error when generate downloader writes files#5523simonfaltum wants to merge 1 commit into
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FlushToDisk closed downloaded files via defer, discarding the Close error and logging success before the file was closed. A failed flush could leave a truncated file while the command exits 0. Close the file explicitly and propagate the error, mirroring the pattern in libs/filer/local_client.go. Co-authored-by: Isaac
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Commit: 978544a
22 interesting tests: 15 SKIP, 7 KNOWN
Top 28 slowest tests (at least 2 minutes):
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Why
Found during a full-repo review of the CLI. When
bundle generate(andapps import) downloads notebooks and files to disk, it closed each written file with a deferredClosewhose error was discarded, and the "File successfully saved" message was printed before the file was closed. If the OS reports a write error at close time (for example a failed flush on a full or remote filesystem), the command logs success and exits 0 while leaving a truncated file on disk.Changes
Before, a failed
Closeon a downloaded file was silently ignored; now it fails the command before the success message is printed. Inbundle/generate/downloader.go,FlushToDiskcloses the file explicitly afterio.Copyand propagates theCloseerror when the copy itself succeeded, mirroring the existing pattern inlibs/filer/local_client.go. No output changes on the happy path.Test plan
TestDownloader_FlushToDiskcovering the download-write-close path end to end (file contents verified on disk). The close-error branch itself is not portably triggerable on a realos.Filewithout dependency injection, so the test covers the restructured code path.go test ./bundle/generate/passes.TestAccept/bundle/generate/job_nested_notebooks,TestAccept/bundle/generate/python_job,TestAccept/bundle/generate/pipeline../task fmt-q,./task lint-q, and./task checkspass.This pull request and its description were written by Isaac.