100 lines
4.1 KiB
Nix
100 lines
4.1 KiB
Nix
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{
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description = "A basic flake with a shell";
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inputs = {
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nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
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flake-utils.url = "github:numtide/flake-utils";
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rust-overlay.url = "github:oxalica/rust-overlay";
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cargo-workspace.url = "github:Maix0/cargo-ws-flake";
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cargo-semver-checks.url = "github:Maix0/cargo-semver-checks-flake";
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};
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outputs = {
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self,
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nixpkgs,
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flake-utils,
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rust-overlay,
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...
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} @ inputs:
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flake-utils.lib.eachDefaultSystem (system: let
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pkgs = import nixpkgs {
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inherit system;
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overlays = [(import rust-overlay)];
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};
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packageIf = name: packageDef:
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if builtins.hasAttr name inputs
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then [(packageDef inputs.${name})]
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else [];
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buildRustToolchain = toolchainDef:
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if builtins.isString toolchainDef
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then let
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split = pkgs.lib.strings.splitString "/" toolchainDef;
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toolchainType =
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if (builtins.length split) > 3
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then throw "You can only specify a single version using `{type}/{version}/{profile}`"
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else if (builtins.length split) >= 1
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then builtins.elemAt split 0
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else throw "You must specify at least a toolchain version with this format `{type}/{version}/{profile}`";
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toolchainVersion =
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if (builtins.length split) > 3
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then throw "You can only specify a single version using `{type}/{version}/{profile}`"
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else if (builtins.length split) >= 2
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then builtins.elemAt split 1
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else "latest";
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toolchainProfile =
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if (builtins.length split) > 3
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then throw "You can only specify a single version using `{type}/{version}/{profile}`"
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else if (builtins.length split) >= 3
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then builtins.elemAt split 2
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else "default";
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in
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buildRustToolchain {
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toolchain = toolchainType;
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version = toolchainVersion;
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profile = toolchainProfile;
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}
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else if builtins.isAttrs toolchainDef
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then
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if toolchainDef.toolchain == "stable"
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then pkgs.rust-bin.stable.${toolchainDef.version}.${toolchainDef.profile}.override (builtins.removeAttrs toolchainDef ["toolchain" "version" "profile"])
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else if toolchainDef.toolchain == "beta"
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then pkgs.rust-bin.beta.${toolchainDef.version}.${toolchainDef.profile}.override (builtins.removeAttrs toolchainDef ["toolchain" "version" "profile"])
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else if toolchainDef.toolchain == "nightly"
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then
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if toolchainDef.version == "latest"
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then pkgs.rust-bin.selectLatestNightlyWith (toolchain: toolchain.${toolchainDef.profile}.override (builtins.removeAttrs toolchainDef ["toolchain" "version" "profile"]))
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else pkgs.rust-bin.nightly.${toolchainDef.version}.${toolchainDef.profile}.override (builtins.removeAttrs toolchainDef ["toolchain" "version" "profile"])
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else throw "toolchain version isn't valid (not 'stable' or 'beta' or 'nightly')"
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else throw "toolchainDef isn't a string or an attr describing the toolchain";
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in {
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devShell = let
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rust_dev = buildRustToolchain "stable/latest/default";
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# {
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# extensions = [];
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# targets = ["x86_64-unknown-linux-gnu"];
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# };
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in
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pkgs.mkShell {
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packages = with pkgs;
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[
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rust_dev
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mold
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openssl
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pkg-config
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]
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++ (packageIf "cargo-semver-checks" (p: p.packages.${system}.default))
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++ (packageIf "cargo-workspace" (p: p.packages.${system}.default));
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shellHook = ''
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export RUST_STD="${rust_dev}/share/doc/rust/html/std/index.html"
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if [ -z $CARGO_TARGET_DIR ] then
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: "''${XDG_CACHE_HOME:="''$HOME/.cache"}"
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local hash path
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hash="$(sha1sum - <<< "$PWD" | head -c40)"
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path="''${PWD//[^a-zA-Z0-9]/}"
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export CARGO_TARGET_DIR="''${XDG_CACHE_HOME}/rust-targets/$hash-$path"
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fi
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'';
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};
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});
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}
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