Initial commit

Author: SKalt

Diff for: .clippy.toml

@@ -0,0 +1,2 @@
+# see https://doc.rust-lang.org/stable/clippy/configuration.html
+# see https://rust-lang.github.io/rust-clippy/master/index.html#Configuration

Diff for: .editorconfig

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+[*]
+indent_size = 2
+indent_style = space
+trim_trailing_whitespace = true
+insert_final_newline = true
+charset = utf-8
+
+[*.rs]
+indent_size = 4
+
+[*.py]
+indent_size = 4
+
+[Makefile]
+indent_style = tab
+
+[*.go]
+indent_style = tab
+

Diff for: .envrc

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+#!/bin/bash
+export COLORTERM=truecolor
+use flake
+export RUST_BACKTRACE=1

Diff for: .gitattributes

@@ -0,0 +1 @@
+flake.lock linguist-generated=true

Diff for: .gitignore

@@ -0,0 +1,5 @@
+.direnv
+target
+result*
+# ./result* is owned by `nix build`.
+# see https://nixos.org/manual/nix/stable/command-ref/new-cli/nix3-build

Diff for: .rustfmt.toml

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+# https://rust-lang.github.io/rustfmt/
+newline_style = "Unix"
+use_try_shorthand = true

Diff for: .shellcheckrc

@@ -0,0 +1,2 @@
+external-sources=true
+source-path=SCRIPTDIR

Diff for: .vscode/settings.json

@@ -0,0 +1,6 @@
+{
+  "editor.formatOnSave": true,
+  "nixEnvSelector.nixFile": "${workspaceRoot}/flake.nix",
+  "nix.enableLanguageServer": true,
+  "nix.serverPath": "nil"
+}

Diff for: Cargo.lock

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+[package]
+name = "rust-nix-project-template"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

Diff for: Cargo.toml

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+{
+  description = ""; # FIXME: add a description
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable"; # TODO: pin
+    flake-utils.url = "github:numtide/flake-utils"; # TODO: pin
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay"; # TODO: pin;
+      inputs.flake-utils.follows = "flake-utils";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = { self, flake-utils, nixpkgs, rust-overlay }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        overlays = [ (import rust-overlay) ];
+        pkgs = (import nixpkgs) {
+          inherit system overlays;
+        };
+        # Generate a user-friendly version number.
+        version = builtins.substring 0 8 self.lastModifiedDate;
+        rust_toolchain = pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
+        info = (builtins.fromTOML (builtins.readFile ./Cargo.toml));
+        filters = import ./nix/filter_filesets.nix { inherit (pkgs) lib; };
+      in
+      {
+        packages = {
+          # For `nix build` & `nix run`:
+          default = pkgs.rustPlatform.buildRustPackage {
+            # https://nixos.org/manual/nixpkgs/stable/#compiling-rust-applications-with-cargo
+            inherit version;
+            pname = info.package.name;
+            src = pkgs.lib.fileset.toSource {
+              root = ./. ;
+              fileset = filters.rust ./. ;
+              # ^ see https://johns.codes/blog/efficient-nix-derivations-with-file-sets
+              # see https://github.com/JRMurr/roc2nix/blob/main/lib/languageFilters.nix
+            };
+            cargoLock = {
+              lockFile = ./Cargo.lock;
+            };
+            nativeBuildInputs = [ rust_toolchain ];
+          };
+        };
+        # For `nix develop`:
+        devShell = pkgs.mkShell {
+          # see https://github.com/NixOS/nixpkgs/issues/52447
+          # see https://hoverbear.org/blog/rust-bindgen-in-nix/
+          # see https://slightknack.dev/blog/nix-os-bindgen/
+          # https://nixos.wiki/wiki/Rust#Installation_via_rustup
+          nativeBuildInputs = [ rust_toolchain ];
+          buildInputs = with pkgs;
+            [
+              # rust tools
+              rust-analyzer-unwrapped
+              cargo-bloat
+
+              # nix support
+              nixpkgs-fmt
+              nil
+
+              # other
+              lychee
+              shellcheck
+              git
+              bashInteractive
+            ];
+
+          # Environment variables
+          RUST_SRC_PATH = "${rust_toolchain}/lib/rustlib/src/rust/library";
+        };
+      }
+    );
+}

Diff for: flake.lock

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+# adapted from https://github.com/JRMurr/roc2nix/blob/main/lib/languageFilters.nix
+{ lib }:
+
+# common file sets for different languages
+# https://nix.dev/tutorials/file-sets
+# https://nixos.org/manual/nixpkgs/unstable/#sec-functions-library-fileset
+with lib.fileset;
+
+let
+
+  fileHasAnySuffix = fileSuffixes: file: (lib.lists.any (s: lib.hasSuffix s file.name) fileSuffixes);
+
+  rust = basePath: (
+    let
+      mainFilter = fileFilter
+        (fileHasAnySuffix [ ".rs" "Cargo.toml"])
+        basePath;
+    in
+    unions [ mainFilter (basePath + "/Cargo.toml") (basePath + "/Cargo.lock") ]
+  );
+  in
+{
+  inherit rust;
+}

Diff for: flake.nix

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+# see https://rust-lang.github.io/rustup/overrides.html#the-toolchain-file
+[toolchain]
+channel = "stable"
+components = ["rustfmt", "clippy", "rust-src"]
+targets = []

Diff for: nix/filter_filesets.nix

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+fn main() {
+    println!("Hello, world!");
+}