dev: nix environment

devshell/default.nix

@@ -0,0 +1,47 @@
+{ inputs, flake, self, pkgs }:
+let
+  rustToolchain = pkgs.pkgsBuildHost.rust-bin.fromRustupToolchainFile ../rust-toolchain.toml;
+  runtimeLibraries = with pkgs; [
+    alsa-lib
+    vulkan-loader
+    udev
+    libx11
+    libxcursor
+    libxi
+    libxrandr
+    libxkbcommon
+    wayland
+  ];
+in {
+  default = pkgs.mkShell {
+    buildInputs = with pkgs; [
+      rustToolchain
+      stdenv.cc
+      git
+      pkg-config
+      shellcheck
+      file
+      openssl
+    ] ++ runtimeLibraries;
+
+    shellHook = ''
+      export RUST_SRC_PATH="${rustToolchain}/lib/rustlib/src/rust/library"
+
+      if [ -d /run/opengl-driver/lib ]; then
+        export LD_LIBRARY_PATH="/run/opengl-driver/lib''${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}"
+      fi
+
+      export LD_LIBRARY_PATH="${pkgs.lib.makeLibraryPath runtimeLibraries}''${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}"
+
+      if git_root=$(${pkgs.git}/bin/git rev-parse --show-toplevel 2>/dev/null); then
+        export LOCAL_DIR="$git_root"
+      else
+        export LOCAL_DIR="$PWD"
+      fi
+
+      printf '%s\n' "bevy_controls dev shell"
+      printf '%s\n' "Library: cargo check && cargo test"
+      printf '%s\n' "Example: cd crate/bevy_controls/example/basic && cargo run --features x11"
+    '';
+  };
+}