zera.rust

Rust workspace for the ZERA SDK migration.

Current state

Migration scaffolding and parity phases are landed in this repo:

• ✅ Workspace + toolchain setup (Cargo.toml, rust-toolchain.toml)
• ✅ Canonical protobuf snapshot in proto/ + generated Rust types in crates/zera-proto
• ✅ Core SDK crate in crates/zera-sdk
• ✅ Phase 2 wrappers (bridge ZERA, dex, staking)
• ✅ Phase 3 bridge additions (guardian fetch/submit + solana builders/orchestration)
• ✅ CI matrix for default + feature-gated verification (.github/workflows/ci.yml)

For parity tracking, see docs/parity-matrix.md.

Feature flags (crates/zera-sdk)

Default build keeps optional Phase 3 bridge modules off.

• bridge-guardian
  • Enables guardian gRPC helpers and guardian bridge APIs
  • Exposes zera_sdk::smart_contracts::use_cases::bridge::guardian
  • Includes submit_vaa_to_zera
• bridge-solana
  • Enables Solana bridge constants/types/utils/builders
  • Exposes zera_sdk::smart_contracts::use_cases::bridge::solana
• bridge-phase3
  • Convenience flag enabling both bridge-guardian and bridge-solana

submit_vaa_to_solana is exported from bridge::guardian and is available only when both bridge-guardian and bridge-solana are enabled.

Recommended verification

Prereq: protoc must be installed (CI installs protobuf-compiler).

Run the same checks used in CI:

cargo test -p zera-sdk
cargo test -p zera-sdk --features bridge-guardian --test grpc__guardian --test smart_contracts__bridge_guardian
cargo test -p zera-sdk --features bridge-solana --test smart_contracts__bridge_solana_transactions --test smart_contracts__bridge_solana_utils
cargo test -p zera-sdk --features "bridge-guardian bridge-solana" --test grpc__guardian --test smart_contracts__bridge_guardian --test smart_contracts__bridge_guardian_solana --test smart_contracts__bridge_solana_transactions
cargo test -p zera-sdk --features "bridge-guardian bridge-solana" --examples

If you only want one Phase 3 flag switch, use:

cargo test -p zera-sdk --features bridge-phase3 --examples