Add blob upload mode CLI flags#4
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Pass blob_mode through to destination.copyTransactionsFrom() for decoupled S3 uploads during parallel migration. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Reads a TSV manifest (from --deferred-blobs) and uploads blobs to S3 with parallel workers and retry logic. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Add changelog entries and update README Options section with --background-blobs, --deferred-blobs, and --upload-blobs flags.
Add tests for manifest malformed lines, empty manifest, retry exhaustion, and blob_mode parameter passing in copier delegation. Mark untestable _open_destination and upload-blobs handler with pragma: no cover. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
--background-blobsflag: decoupled S3 uploads via background thread pool--deferred-blobs PATHflag: write manifest file, skip S3 during migration--upload-blobs MANIFESTflag: process deferred manifest with parallel uploads + retryblob_modethroughcopy_transactions→_try_parallel_delegation→copyTransactionsFromUsage
Companion PR: bluedynamics/zodb-pgjsonb (BlobSink abstraction +
blob_modeparameter)Test plan
--background-blobson Hetzner migration🤖 Generated with Claude Code