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refactor(nix): migrate flake.nix to flake-parts

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- Replace manual forAllSystems pattern with flake-parts.lib.mkFlake
- Use perSystem for packages and devShells definitions
- Pin rust-overlay's nixpkgs to follow main nixpkgs input
- No functional changes to package or dev shell
This commit is contained in:
Jon Seager 2026-02-02 17:39:38 +00:00
parent c7ea7420ae
commit 583f249059
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2 changed files with 80 additions and 74 deletions
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40
flake.lock
View file

@ -1,5 +1,23 @@
{
"nodes": {
"flake-parts": {
"inputs": {
"nixpkgs-lib": "nixpkgs-lib"
},
"locked": {
"lastModified": 1769996383,
"narHash": "sha256-AnYjnFWgS49RlqX7LrC4uA+sCCDBj0Ry/WOJ5XWAsa0=",
"owner": "hercules-ci",
"repo": "flake-parts",
"rev": "57928607ea566b5db3ad13af0e57e921e6b12381",
"type": "github"
},
"original": {
"owner": "hercules-ci",
"repo": "flake-parts",
"type": "github"
}
},
"nixpkgs": {
"locked": {
"lastModified": 1763283776,
@ -16,31 +34,33 @@
"type": "github"
}
},
"nixpkgs_2": {
"nixpkgs-lib": {
"locked": {
"lastModified": 1744536153,
"narHash": "sha256-awS2zRgF4uTwrOKwwiJcByDzDOdo3Q1rPZbiHQg/N38=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "18dd725c29603f582cf1900e0d25f9f1063dbf11",
"lastModified": 1769909678,
"narHash": "sha256-cBEymOf4/o3FD5AZnzC3J9hLbiZ+QDT/KDuyHXVJOpM=",
"owner": "nix-community",
"repo": "nixpkgs.lib",
"rev": "72716169fe93074c333e8d0173151350670b824c",
"type": "github"
},
"original": {
"owner": "NixOS",
"ref": "nixpkgs-unstable",
"repo": "nixpkgs",
"owner": "nix-community",
"repo": "nixpkgs.lib",
"type": "github"
}
},
"root": {
"inputs": {
"flake-parts": "flake-parts",
"nixpkgs": "nixpkgs",
"rust-overlay": "rust-overlay"
}
},
"rust-overlay": {
"inputs": {
"nixpkgs": "nixpkgs_2"
"nixpkgs": [
"nixpkgs"
]
},
"locked": {
"lastModified": 1763433504,

76
flake.nix
View file

@ -4,6 +4,8 @@
inputs = {
nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
rust-overlay.url = "github:oxalica/rust-overlay";
rust-overlay.inputs.nixpkgs.follows = "nixpkgs";
flake-parts.url = "github:hercules-ci/flake-parts";
};
outputs =
@ -11,39 +13,40 @@
self,
nixpkgs,
rust-overlay,
}:
let
supportedSystems = [
flake-parts,
}@inputs:
flake-parts.lib.mkFlake { inherit inputs; } {
systems = [
"x86_64-linux"
"aarch64-linux"
];
forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
pkgsForSystem =
system:
(import nixpkgs {
inherit system;
overlays = [ (import rust-overlay) ];
});
in
{
packages = forAllSystems (
system:
perSystem =
{ config, system, ... }:
let
inherit (pkgsForSystem system)
lib
rustPlatform
;
overlays = [ (import rust-overlay) ];
pkgs = import nixpkgs { inherit system overlays; };
inherit (pkgs) lib rustPlatform;
rust = pkgs.rust-bin.stable.latest.default.override {
extensions = [
"rust-src"
"clippy"
"rust-analyzer"
"rustfmt"
];
};
cargoToml = lib.trivial.importTOML ./Cargo.toml;
version = cargoToml.package.version;
in
rec {
default = brewlog;
{
packages = {
default = self.packages.${system}.brewlog;
brewlog = rustPlatform.buildRustPackage {
pname = "brewlog";
version = version;
inherit version;
src = lib.cleanSource ./.;
cargoLock.lockFile = ./Cargo.lock;
@ -56,23 +59,9 @@
maintainers = with lib.maintainers; [ jnsgruk ];
};
};
}
);
devShells = forAllSystems (
system:
let
pkgs = pkgsForSystem system;
rust = pkgs.rust-bin.stable.latest.default.override {
extensions = [
"rust-src"
"clippy"
"rust-analyzer"
"rustfmt"
];
};
in
{
devShells = {
default = pkgs.mkShell {
name = "brewlog";
@ -80,19 +69,16 @@
RUST_SRC_PATH = "${rust}/lib/rustlib/src/rust/library";
buildInputs =
with pkgs;
[
[ rust ]
++ (with pkgs; [
cargo-watch
nil
nixfmt
sqlite
sqlx-cli
]
++ [
rust
];
]);
};
};
};
}
);
};
}