Files
alkgit/docs/research
glm-5.3-flash d6d013e522 docs(architecture): resolve OQ-02 — V2 negotiation ack loop (ADR-014)
- ADR-014: the multi-round ack loop, grounded in duplex git 2.43.0
  captures cross-checked against fetch-pack.c: no-done rounds get
  acknowledgments (ACK <oid> per recognized have, NAK when none, flush;
  never ready so FLUSH is always the terminator), the done round
  generates closure(wants) - closure(haves) with no cross-round server
  state (clients re-send wants + commons every round), wait-for-done
  stays (no capability change), want-less rounds answered empty, the
  ack check is a new GitPackGen::common_haves seam (honest boundary at
  the trait), budgets unchanged kinds
- docs/research/negotiation-captures.md: the normative negotiation
  record (grammar, client behavior, malformed-section failure modes)
- transport.md: fetch section rewritten to the decided loop; references
  updated
- OQ-02 resolved

Verification: cargo test / clippy -D warnings / fmt --check / doc pass
2026-09-25 04:05:11 +00:00
..

alkgit Research Index

Phase 0 (exploration) research. Feeds phase 1 (architecture).

Doc Topic Status
vision.md Vision, guiding principles, non-goals, phase-0 checklist draft v2 (amended 2026-09-21)
gitoxide.md gitoxide (gix) capability + version alignment initial pass complete
alk-stack.md alk stack fit, integration surface, gitea-lesson constraints initial pass complete
git-protocol.md Server-side git smart protocol inventory (what we own) initial pass complete
reference-policy.md Licenses, reference projects, reuse policy complete
pocs.md POC plan (what to validate before architecture commits) planned
poc-1-findings.md POC-1: pkt-line over alkcall BiStream (duplex producer) complete — proceed
poc2-findings.md POC-2: server-side pack generation (streaming pipeline) complete — proceed
poc3-findings.md POC-3: smart-http shape through alkhttp (stateless substrate) complete — proceed
push-captures.md Normative receive-pack (push) wire record (real git captures) complete — ADR-013 basis
negotiation-captures.md Normative V2 negotiation record (real git captures + source) complete — ADR-014 basis

Key findings so far

  • gitoxide covers storage + pkt-line; the server half of the smart protocol is ours to write (gix-protocol/transport are client-side).
  • Published gix 0.87.1 == local clone base; pin crates.io versions.
  • alkcall BiStream is the natural substrate under pkt-line for both ssh and http paths.
  • The incompatible-license prior art confirms feasibility but contributes nothing; policy in reference-policy.md.
  • gix with default-features = false requires an explicit hash feature; workspace pins sha1 with a sha256 passthrough feature everywhere.

Convergence criteria (phase 0 → phase 1)

Phase 0 is done when POC-1..3 have results and a recommended-approach summary is written here (append below). Then the Architect produces docs/architecture/ per sdd_process.

Convergence (2026-09-21): phase 0 gates all pass (POC-1/2/3 proceed). Phase 1 opened with docs/architecture/; the structural decision is ADR-010 — pure protocol crate following the alktty/alktunnels template (the v1 "monorepo + alkgitd binary" framing in these research docs was an init-agent artifact, amended in vision.md v2). POC-1 maps to the producer half, POC-2 to the gix backend implementation, POC-3 to the stateless substrate consumed by alkhttp's future git feature.