Rust/flake.nix

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{
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inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
utils.url = "github:numtide/flake-utils";
naersk = {
url = "github:nix-community/naersk";
inputs.nixpkgs.follows = "nixpkgs";
};
# Used for rust compiler
rust-overlay = {
url = "github:oxalica/rust-overlay";
inputs.nixpkgs.follows = "nixpkgs";
};
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# Advisory db from rust-sec
advisory-db = {
url = "github:RustSec/advisory-db";
flake = false;
};
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};
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description = "Rust Toolchain and Utility Flake";
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outputs = { self, nixpkgs, utils, ... }@inputs:
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with builtins;
let
sources = fromJSON (readFile ./sources/sources.json);
rustPackageNames = attrNames sources ++ [ "cargo-release" "cargo-deny" ];
# Build the rust packages we'll be using
in (utils.lib.eachDefaultSystem (system: {
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packages = let
pkgs = import nixpkgs {
inherit system;
overlays = [ (import inputs.rust-overlay) ];
};
rust = pkgs.rust-bin.stable.latest.default.override {
extensions = [ "llvm-tools-preview" ];
};
naersk-lib = inputs.naersk.lib."${system}".override {
rustc = rust;
cargo = rust;
};
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in (mapAttrs (name: source:
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naersk-lib.buildPackage {
pname = source.pname;
src = pkgs.fetchCrate source;
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buildInputs = with pkgs; [ pkg-config openssl ];
}) sources) //
# Packages that naersk has trouble building due to https://github.com/nix-community/naersk/issues/263
{
cargo-release = pkgs.cargo-release;
cargo-deny = pkgs.cargo-deny;
};
})) //
# Now provide our builder functions
{
# Build a rust flake with a single crate
single = { src, crateName, sharedDeps ? (system: [ ])
, sharedNativeDeps ? (system: [ ]) }:
utils.lib.eachDefaultSystem (system:
let
pkgs = import nixpkgs {
inherit system;
overlays = [ (import inputs.rust-overlay) ];
};
rust = pkgs.rust-bin.stable.latest.default.override {
extensions = [ "llvm-tools-preview" ];
};
naersk-lib = inputs.naersk.lib."${system}".override {
rustc = rust;
cargo = rust;
};
devBase = with pkgs;
[
# Build tools
openssl
pkg-config
rust-analyzer
cmake
gnuplot
# git tooling
gitFull
pre-commit
git-lfs
git-cliff
# Formatters
nixfmt
python311Packages.mdformat
] ++ map (x: self.packages.${system}.${x}) rustPackageNames;
in rec {
# Main binary
packages.${crateName} = naersk-lib.buildPackage {
pname = "${crateName}";
buildInputs = sharedDeps system;
nativeBuildInputs = sharedNativeDeps system;
root = src;
};
# binary + tests
packages.tests.${crateName} = naersk-lib.buildPackage {
pname = "${crateName}";
buildInputs = sharedDeps system;
nativeBuildInputs = sharedNativeDeps system;
root = src;
doCheck = true;
};
# Docs
packages.docs.${crateName} = naersk-lib.buildPackage {
pname = "${crateName}";
buildInputs = sharedDeps system;
nativeBuildInputs = sharedNativeDeps system;
root = src;
dontBuild = true;
doDoc = true;
doDocFail = true;
};
# Set the default package to the main binary
defaultPackage = packages.${crateName};
# CI tasks
packages.lints = {
# lint formatting
format.${crateName} = with import nixpkgs { inherit system; };
stdenv.mkDerivation {
name = "format lint";
src = src;
nativeBuildInputs = with pkgs;
[ rust-bin.stable.latest.default ]
++ (sharedNativeDeps system);
buildInputs = sharedDeps system;
buildPhase = "cargo fmt -- --check";
installPhase = "mkdir -p $out; echo 'done'";
};
# audit against stored advisory db
audit.${crateName} = with import nixpkgs { inherit system; };
stdenv.mkDerivation {
name = "audit lint";
src = src;
nativeBuildInputs = with pkgs;
[ rust-bin.stable.latest.default cargo-audit ]
++ (sharedNativeDeps system);
buildInputs = sharedDeps system;
buildPhase = ''
export HOME=$TMP
mkdir -p ~/.cargo
cp -r ${advisory-db} ~/.cargo/advisory-db
cargo audit -n
'';
installPhase = "mkdir -p $out; echo 'done'";
};
# Clippy
clippy.${crateName} = naersk-lib.buildPackage {
pname = "${crateName}";
root = src;
buildInputs = sharedDeps system;
nativeBuildInputs = sharedNativeDeps system;
cargoTestCommands = (old: [ "cargo $cargo_options clippy" ]);
doCheck = true;
dontBuild = true;
};
};
# Development environments
devShell = pkgs.mkShell {
inputsFrom = builtins.attrValues packages;
buildInputs = [ rust ] ++ devBase ++ (sharedDeps system)
++ (sharedNativeDeps system);
};
});
};
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}