128 lines
3.2 KiB
Nix
128 lines
3.2 KiB
Nix
{
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description = "GitHub Actions-powered Nix binary cache";
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inputs = {
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nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1.tar.gz";
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# Pinned to `master` until a release containing
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# <https://github.com/ipetkov/crane/pull/792> is cut.
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crane.url = "github:ipetkov/crane";
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nix.url = "https://flakehub.com/f/NixOS/nix/2.tar.gz";
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};
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outputs = { self, nixpkgs, crane, ... }@inputs:
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let
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supportedSystems = [
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"aarch64-linux"
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"x86_64-linux"
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"aarch64-darwin"
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"x86_64-darwin"
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];
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forEachSupportedSystem = f: nixpkgs.lib.genAttrs supportedSystems (system: f rec {
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pkgs = import nixpkgs {
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inherit system;
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overlays = [
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self.overlays.default
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];
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};
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inherit (pkgs) lib;
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inherit system;
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});
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in
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{
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overlays.default = final: prev:
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let
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craneLib = crane.mkLib final;
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crateName = craneLib.crateNameFromCargoToml {
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cargoToml = ./magic-nix-cache/Cargo.toml;
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};
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commonArgs = {
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inherit (crateName) pname version;
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src = self;
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nativeBuildInputs = with final; [
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pkg-config
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];
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buildInputs = [
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inputs.nix.packages.${final.stdenv.system}.default
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final.boost
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];
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};
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cargoArtifacts = craneLib.buildDepsOnly commonArgs;
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in
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{
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magic-nix-cache = craneLib.buildPackage (commonArgs // {
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inherit cargoArtifacts;
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});
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};
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packages = forEachSupportedSystem ({ pkgs, ... }: rec {
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magic-nix-cache = pkgs.magic-nix-cache;
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default = magic-nix-cache;
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veryLongChain =
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let
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ctx = ./README.md;
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# Function to write the current date to a file
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startFile =
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pkgs.stdenv.mkDerivation {
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name = "start-file";
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buildCommand = ''
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cat ${ctx} > $out
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'';
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};
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# Recursive function to create a chain of derivations
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createChain = n: startFile:
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pkgs.stdenv.mkDerivation {
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name = "chain-${toString n}";
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src =
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if n == 0 then
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startFile
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else createChain (n - 1) startFile;
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buildCommand = ''
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echo $src > $out
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'';
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};
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in
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# Starting point of the chain
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createChain 200 startFile;
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});
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devShells = forEachSupportedSystem ({ system, pkgs, lib }: {
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default = pkgs.mkShell {
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packages = with pkgs; [
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rustc
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cargo
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clippy
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rustfmt
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rust-analyzer
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inputs.nix.packages.${stdenv.system}.default # for linking attic
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boost # for linking attic
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bashInteractive
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pkg-config
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cargo-bloat
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cargo-edit
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cargo-udeps
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cargo-watch
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bacon
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age
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];
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RUST_SRC_PATH = "${pkgs.rustPlatform.rustcSrc}/library";
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};
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});
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};
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}
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