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# Nix helpers for projects under //tvix
{ pkgs, depot, ... }:
let
# crate override for crates that need protobuf
protobufDep = prev: (prev.nativeBuildInputs or [ ]) ++ [ pkgs.protobuf ];
# Cargo dependencies to be used with nixpkgs rustPlatform functions.
cargoDeps = pkgs.rustPlatform.importCargoLock {
lockFile = ./Cargo.lock;
outputHashes = {
"test-generator-0.3.0" = "08brp3qqa55hijc7xby3lam2cc84hvx1zzfqv6lj7smlczh8k32y";
"tonic-mock-0.1.0" = "0lwa03hpp0mxa6aa1zv5w68k61y4hccfm0q2ykyq392fwal8vb50";
"wu-manber-0.1.0" = "02byhfiw41mlgr1c43n2iq6jw5sbyn8l1acv5v71a07h5l18q0cy";
};
};
in
{
# Load the crate2nix crate tree.
crates = import ./Cargo.nix {
inherit pkgs;
nixpkgs = pkgs.path;
defaultCrateOverrides = pkgs.defaultCrateOverrides // {
prost-build = prev: {
nativeBuildInputs = protobufDep prev;
};
tonic-reflection = prev: {
nativeBuildInputs = protobufDep prev;
};
tvix-store = prev: {
PROTO_ROOT = depot.tvix.store.protos;
nativeBuildInputs = protobufDep prev;
};
};
};
# Run crate2nix generate in the current working directory, then
# format the generated file with depotfmt.
crate2nixGenerate = pkgs.writeShellScriptBin "crate2nix-generate" ''
${pkgs.crate2nix}/bin/crate2nix generate
${depot.tools.depotfmt}/bin/depotfmt Cargo.nix
'';
# Provide a shell for the combined dependencies of all Tvix Rust
# projects. Note that as this is manually maintained it may be
# lacking something, but it is required for some people's workflows.
#
# This shell can be entered with e.g. `mg shell //tvix:shell`.
shell = pkgs.mkShell {
name = "tvix-rust-dev-env";
packages = [
pkgs.buf-language-server
pkgs.cargo
pkgs.clippy
pkgs.evans
pkgs.rust-analyzer
pkgs.rustc
pkgs.rustfmt
pkgs.protobuf
];
};
# Build the Rust documentation for publishing on docs.tvix.dev. Currently only
# some crates are documented, as the crates that depend on Protobuf cause
# build failures.
rust-docs = pkgs.stdenv.mkDerivation {
inherit cargoDeps;
name = "tvix-rust-docs";
src = depot.third_party.gitignoreSource ./.;
PROTO_ROOT = depot.tvix.store.protos;
nativeBuildInputs = with pkgs; [
cargo
rust-analyzer
rustPlatform.cargoSetupHook
rustc
protobuf
];
buildPhase = ''
cargo doc --document-private-items
mv target/doc $out
'';
};
export = (pkgs.runCommandLocal "export-tvix" { } ''
echo "carrier for repo export extra-step" > $out
'').overrideAttrs (_: {
meta.ci.extraSteps.github = depot.tools.releases.filteredGitPush {
filter = ":workspace=views/tvix";
remote = "git@github.com:tvlfyi/tvix.git";
ref = "refs/heads/canon";
};
});
meta.ci.targets = [ "shell" "export" "rust-docs" ];
}
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