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{
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description = "A post-modern text editor.";
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inputs = {
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nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
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rust-overlay = {
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url = "github:oxalica/rust-overlay";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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};
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outputs = {
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self,
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nixpkgs,
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rust-overlay,
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...
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}: let
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inherit (nixpkgs) lib;
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eachSystem = lib.genAttrs lib.systems.flakeExposed;
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pkgsFor = eachSystem (system:
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import nixpkgs {
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localSystem.system = system;
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overlays = [(import rust-overlay) self.overlays.helix];
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});
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gitRev = self.rev or self.dirtyRev or null;
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in {
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packages = eachSystem (system: {
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inherit (pkgsFor.${system}) helix;
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/*
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The default Helix build. Uses the latest stable Rust toolchain, and unstable
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nixpkgs.
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The build inputs can be overridden with the following:
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packages.${system}.default.override { rustPlatform = newPlatform; };
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Overriding a derivation attribute can be done as well:
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packages.${system}.default.overrideAttrs { buildType = "debug"; };
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*/
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default = self.packages.${system}.helix;
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});
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checks =
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lib.mapAttrs (system: pkgs: let
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# Get Helix's MSRV toolchain to build with by default.
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msrvToolchain = pkgs.pkgsBuildHost.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
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msrvPlatform = pkgs.makeRustPlatform {
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cargo = msrvToolchain;
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rustc = msrvToolchain;
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};
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in {
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helix = self.packages.${system}.helix.override {
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rustPlatform = msrvPlatform;
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};
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})
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pkgsFor;
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# Devshell behavior is preserved.
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devShells =
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lib.mapAttrs (system: pkgs: {
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default = let
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commonRustFlagsEnv = "-C link-arg=-fuse-ld=lld -C target-cpu=native --cfg tokio_unstable";
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platformRustFlagsEnv = lib.optionalString pkgs.stdenv.isLinux "-Clink-arg=-Wl,--no-rosegment";
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in
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pkgs.mkShell {
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inputsFrom = [self.checks.${system}.helix];
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nativeBuildInputs = with pkgs;
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[
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lld
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cargo-flamegraph
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rust-bin.nightly.latest.rust-analyzer
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]
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++ (lib.optional (stdenv.isx86_64 && stdenv.isLinux) cargo-tarpaulin)
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++ (lib.optional stdenv.isLinux lldb);
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shellHook = ''
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export RUST_BACKTRACE="1"
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export RUSTFLAGS="''${RUSTFLAGS:-""} ${commonRustFlagsEnv} ${platformRustFlagsEnv}"
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'';
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};
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})
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pkgsFor;
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overlays = {
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helix = final: prev: {
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helix = final.callPackage ./default.nix {inherit gitRev;};
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};
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default = self.overlays.helix;
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};
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};
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nixConfig = {
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extra-substituters = ["https://helix.cachix.org"];
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extra-trusted-public-keys = ["helix.cachix.org-1:ejp9KQpR1FBI2onstMQ34yogDm4OgU2ru6lIwPvuCVs="];
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};
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}
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