dave
b340aa97b0
The 13-file refactor pass (commitsdb00a5d4througheca15b4e) introduced ~89 clippy errors and 38 cargo fmt issues — every agent in every worktree hit them on script/test, burning their turn budget on cleanup before doing real story work. This is the silent kill behind 644, 652, 655, 664, 667 all hitting watchdog limits this round. Changes: - cargo fmt --all across 37 files (formatting normalisation only) - #![allow(unused_imports, dead_code)] on 24 split modules where the python-script splitter imported liberally to be safe; tighter cleanup per-import will happen as agents touch each module - Removed truly-dead re-exports (cleanup_merge_workspace, slog_warn from http/mcp/mod.rs, CliArgs/print_help from main.rs) - Prefixed _auth_msg in crdt_sync/server.rs (handshake helper return is bound but not consumed) - Converted dangling /// doc block in crdt_sync/mod.rs to //! so it attaches to the module - Removed empty lines after doc comments in 4 spots (clippy lint) All 2636 tests pass; clippy --all-targets -- -D warnings clean.
76 lines
3.6 KiB
Rust
76 lines
3.6 KiB
Rust
//! CRDT sync — WebSocket-based replication of pipeline state between huskies nodes.
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//! WebSocket-based CRDT sync layer for replicating pipeline state between
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//! huskies nodes.
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//!
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//! # Protocol
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//!
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//! ## Version negotiation
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//!
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//! After the auth handshake, both sides send their first sync message:
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//!
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//! - **v2 peers** send a `clock` frame: `{"type":"clock","clock":{ <node_id_hex>: <max_count>, ... }}`
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//! containing a vector clock that maps each author's hex Ed25519 pubkey to the
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//! count of ops received from that author. Upon receiving the peer's clock,
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//! each side computes the delta via [`crdt_state::ops_since`] and sends only
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//! the missing ops as a `bulk` frame.
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//!
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//! - **v1 (legacy) peers** send a `bulk` frame directly (full op dump).
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//! A v2 peer receiving a `bulk` first (instead of a `clock`) falls back to
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//! the full-dump path: applies the incoming bulk and responds with its own
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//! full bulk. This preserves backward compatibility — no code change needed
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//! on the v1 side.
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//!
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//! ## Text frames
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//! A JSON object with a `"type"` field:
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//! - `{"type":"clock","clock":{...}}` — Vector clock (v2 protocol).
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//! - `{"type":"bulk","ops":[...]}` — Ops dump (full or delta).
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//! - `{"type":"ready"}` — Signals that the bulk-delta phase is complete and the
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//! sender is ready for real-time op streaming. Locally-generated ops are
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//! buffered until the peer's `ready` is received, then flushed in order.
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//!
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//! ## Binary frames (real-time op broadcast)
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//! Individual `SignedOp`s encoded via [`crate::crdt_wire`] (versioned JSON
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//! envelope: `{"v":1,"op":{...}}`). Each locally-applied op is immediately
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//! broadcast as a binary frame to all connected peers.
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//!
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//! Both the server endpoint and the rendezvous client use the same protocol,
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//! making the connection fully symmetric.
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//!
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//! ## Backpressure
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//! Each connected peer has its own [`tokio::sync::broadcast`] receiver. If a
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//! slow peer allows the channel to fill (indicated by a `Lagged` error), the
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//! connection is dropped with a warning log. The peer can reconnect and
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//! receive a fresh bulk state dump to catch up.
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// ── Cross-cutting constants ─────────────────────────────────────────
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// ── Auth configuration ──────────────────────────────────────────────
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/// Default timeout for the auth handshake (seconds).
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pub(super) const AUTH_TIMEOUT_SECS: u64 = 10;
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// ── Keepalive configuration ─────────────────────────────────────────
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/// Interval (seconds) between WebSocket Ping frames sent by each side.
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pub const PING_INTERVAL_SECS: u64 = 30;
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/// Seconds without a Pong response before the connection is dropped.
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pub const PONG_TIMEOUT_SECS: u64 = 60;
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// ── Sub-modules ─────────────────────────────────────────────────────
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mod auth;
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mod client;
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mod dispatch;
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mod handshake;
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mod server;
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mod wire;
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// ── Public API re-exports ───────────────────────────────────────────
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pub use auth::{add_join_token, init_token_auth, init_trusted_keys};
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pub(crate) use client::connect_and_sync;
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pub use client::{RENDEZVOUS_ERROR_THRESHOLD, spawn_rendezvous_client};
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pub use server::crdt_sync_handler;
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// Test-only re-export used by `crdt_snapshot` tests.
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#[cfg(test)]
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pub(crate) use wire::SyncMessagePublic;
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