start

flake.nix

@@ -0,0 +1,41 @@
+{
+  description = "A basic flake with a shell";
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+    rust-overlay.url = "github:oxalica/rust-overlay";
+    cargo-workspace.url = "github:maix-flake/cargo-ws";
+  };
+  outputs = {
+    self,
+    nixpkgs,
+    flake-utils,
+    rust-overlay,
+    ...
+  } @ inputs:
+    flake-utils.lib.eachDefaultSystem (system: let
+      pkgs = import nixpkgs {
+        inherit system;
+        overlays = [(import rust-overlay)];
+      };
+      packageIf = name: packageDef:
+        if builtins.hasAttr name inputs
+        then [(packageDef inputs.${name})]
+        else [];
+    in {
+      devShell = let
+        rust_bin =
+          pkgs.rust-bin.stable.latest.default;
+      in
+        pkgs.mkShell {
+          packages =
+            [rust_bin]
+            ++ (packageIf "cargo-semver-checks" (p: p.packages.${system}.default))
+            ++ (packageIf "cargo-workspace" (p: p.packages.${system}.default));
+
+          shellHook = ''
+            export RUST_STD="${rust_bin}/share/doc/rust/html/std/index.html"
+          '';
+        };
+    });
+}