hyperhive/nix/rust.nix

56 lines
2.7 KiB
Nix

# Shared crane wiring for the rust workspace: the cargo source
# filter, the once-built dependency artifacts, and the native build
# inputs every rust derivation (packages + checks) consumes.
# Imported per system from flake.nix.
{ pkgs, craneLib }:
rec {
# Shared between buildDepsOnly + buildPackage + cargoClippy/cargoTest
# so every derivation in the chain sees the same toolchain shape.
# git: hive-c0re's `lifecycle::tests::setup_proposed_*` shell out to
# `git init` + commit under `cargo test` in the sandbox.
# sqlite: matrix-sdk's `sqlite` feature (`hive-matrix-mcp` workspace
# member) — the matrix-sdk-sqlite + rusqlite stack links against
# system libsqlite3 by default.
# cmake: builds `aws-lc-sys` (BoringSSL) from source — pulled in by
# the `rustls` (aws-lc-rs) crypto provider under the OTLP/reqwest
# stack in `hive-metric`.
nativeBuildInputs = [
pkgs.git
pkgs.sqlite
pkgs.pkg-config
pkgs.cmake
];
# Narrowed source tree the rust derivations consume.
# `cleanCargoSource` is crane's standard "everything cargo cares
# about" filter (Cargo.toml/Cargo.lock + *.rs). All non-rust runtime
# assets — branding + the claude system prompt template +
# claude-settings.json — live in the separate `hyperhive-assets`
# derivation and are loaded by the binaries at runtime from
# `$HIVE_ASSETS_DIR`. The unit tests in `hive-ag3nt::prompt` read
# `prompts/system.md` directly from the workspace tree at *test*
# runtime (via `env!("CARGO_MANIFEST_DIR")` — a compile-time string,
# no file open at compile), so the prompt template doesn't have to
# be in this fileset to keep `cargo test` honest. Net effect: tweaks
# to any non-`*.rs` / non-`Cargo.*` file (README, branding, nix
# modules, frontend tree, OR `hive-ag3nt/prompts/*`) do NOT bust
# this src hash, so the rust derivations stay fully cached.
cleanSrc = craneLib.cleanCargoSource ../.;
# Build the workspace's dependency tree once, cached as its own
# derivation. Package builds and checks reuse this via
# `inherit cargoArtifacts;` so a workspace-only edit doesn't rebuild
# deps. All consumers use the same `cleanSrc` so the input hash
# stays consistent across the chain.
cargoArtifacts = craneLib.buildDepsOnly {
src = cleanSrc;
# Workspace Cargo.toml is virtual (no `[package].name`), so crane
# can't auto-derive a name. Spell it out explicitly — keeps the
# derivation name stable across crane bumps + silences the
# placeholder warning. Same `pname` for the dep + check
# derivations so they share a clean naming family.
pname = "hyperhive-workspace";
version = "0.1.0";
inherit nativeBuildInputs;
};
}