feat: Add portable incremental artifact protocol - #13341
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## Why The incremental artifact protocol test declared an oversized `Content-Length` while streaming an empty body. That malformed request can leave the Windows HTTP transport waiting indefinitely and consume the entire CI timeout. ## What Make the oversized request well-formed while preserving the payload-size rejection coverage. ## How Verified with `cargo nextest run -p turborepo-api-client test_incremental_artifact_protocol`.
anthonyshew
marked this pull request as draft
July 28, 2026 00:52
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Why
Remote Cache providers need a portable, optional contract for storing reusable incremental build state independently from exact task artifacts. Establishing the client contract and conformance mock first lets provider and runtime work proceed.
What
Adds
incremental-artifacts-v1capability negotiation and client operations for monolithic incremental artifacts. The conformance mock covers strict compatibility keys, maximum object size, SHA-256 content digests, atomic replacement, preflight behavior, and independent read/publish authorization. Endpoint documentation remains intentionally deferred.How
Validated with:
cargo test -p turborepo-vercel-api -p turborepo-api-clientcargo check -p turborepo-authcargo clippy -p turborepo-vercel-api -p turborepo-vercel-api-mock -p turborepo-api-client --all-targets -- -D warningsReviewers can exercise the complete protocol flow through
test_incremental_artifact_protocol.