initial commit; nix setup + bevy 0.15 stub

.cargo/config.toml

@@ -0,0 +1,17 @@
+[unstable]
+codegen-backend = true
+
+[profile.dev]
+codegen-backend = "cranelift"
+
+[profile.dev.package."*"]
+codegen-backend = "llvm"
+
+# for Linux
+[target.x86_64-unknown-linux-gnu]
+linker = "clang"
+rustflags = ["-C", "link-arg=-fuse-ld=lld"]
+
+# for Windows
+[target.x86_64-pc-windows-msvc]
+linker = "rust-lld.exe"

.envrc

@@ -0,0 +1 @@
+use flake

.gitignore

@@ -0,0 +1,6 @@
+# Rust build files
+/target
+
+# Nix generated files
+.direnv/
+result/

Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "set"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+bevy = { package = "bevy", version = "0.15"}
+
+[profile.dev]
+opt-level = 1
+
+[profile.dev.package."*"]
+opt-level = 3
+
+[features]
+default = ["bevy/dynamic_linking"]

flake.lock

@@ -0,0 +1,129 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "naersk": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1721727458,
+        "narHash": "sha256-r/xppY958gmZ4oTfLiHN0ZGuQ+RSTijDblVgVLFi1mw=",
+        "owner": "nix-community",
+        "repo": "naersk",
+        "rev": "3fb418eaf352498f6b6c30592e3beb63df42ef11",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "naersk",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1732617236,
+        "narHash": "sha256-PYkz6U0bSEaEB1al7O1XsqVNeSNS+s3NVclJw7YC43w=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "af51545ec9a44eadf3fe3547610a5cdd882bc34e",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1732617236,
+        "narHash": "sha256-PYkz6U0bSEaEB1al7O1XsqVNeSNS+s3NVclJw7YC43w=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "af51545ec9a44eadf3fe3547610a5cdd882bc34e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1728538411,
+        "narHash": "sha256-f0SBJz1eZ2yOuKUr5CA9BHULGXVSn6miBuUWdTyhUhU=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "b69de56fac8c2b6f8fd27f2eca01dcda8e0a4221",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "naersk": "naersk",
+        "nixpkgs": "nixpkgs_2",
+        "rust-overlay": "rust-overlay"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_3"
+      },
+      "locked": {
+        "lastModified": 1732802692,
+        "narHash": "sha256-kFrxb45qj52TT/OFUFyTdmvXkn/KXDUL0/DOtjHEQvs=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "34971069ec33755b2adf2481851f66d8ec9a6bfa",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,69 @@
+{
+  inputs = {
+    flake-utils.url = "github:numtide/flake-utils";
+    naersk.url = "github:nix-community/naersk";
+    rust-overlay.url = "github:oxalica/rust-overlay";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+  };
+
+  outputs = { self, flake-utils, naersk, nixpkgs, rust-overlay }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        systems = ["x86_64-linux"];
+        overlays = [ (import rust-overlay) ];
+        pkgs = (import nixpkgs) {
+          inherit system overlays;
+        };
+        naersk' = pkgs.callPackage naersk { };
+        buildInputs = with pkgs; [
+          vulkan-loader
+          xorg.libXcursor
+          xorg.libXi
+          xorg.libXrandr
+          alsa-lib
+          udev
+          pkg-config
+          clang
+          lld
+        ];
+        nativeBuildInputs = with pkgs; [
+          libxkbcommon
+          (rust-bin.selectLatestNightlyWith
+            (toolchain: toolchain.default.override {
+              extensions = [ "rust-src" "clippy" "rustc-codegen-cranelift-preview"];
+            }))
+        ];
+        all_deps = with pkgs; [
+          cargo-flamegraph
+          cargo-expand
+          nixpkgs-fmt
+          cmake
+        ] ++ buildInputs ++ nativeBuildInputs;
+      in
+      rec {
+        # For `nix build` & `nix run`:
+        defaultPackage = packages.bevy_template;
+        packages = rec {
+          bevy_template = naersk'.buildPackage {
+            src = ./.;
+            nativeBuildInputs = nativeBuildInputs;
+            buildInputs = buildInputs;
+            postInstall = ''
+              cp -r assets $out/bin/
+            '';
+            # Disables dynamic linking when building with Nix
+            cargoBuildOptions = x: x ++ [ "--no-default-features" ];
+          };
+        };
+
+        # For `nix develop`:
+        devShell = pkgs.mkShell {
+          nativeBuildInputs = all_deps;
+          shellHook = ''
+            export CARGO_MANIFEST_DIR=$(pwd)
+            export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:${pkgs.lib.makeLibraryPath all_deps}"
+          '';
+        };
+      }
+    );
+}

rust-toolchain.toml

@@ -0,0 +1,3 @@
+[toolchain]
+channel = "nightly"
+components = [ "rust-src", "clippy", "rustc-codegen-cranelift-preview"];

src/main.rs

@@ -0,0 +1,9 @@
+use bevy::prelude::*;
+
+fn main() {
+    App::new().add_plugins(DefaultPlugins).run();
+}
+
+fn hello_world_system() {
+    println!("hello world");
+}