Merge pull request #22 from nim65s/nix

Nix: init

Author: nim65s

.github/workflows/nix.yml

@@ -0,0 +1,39 @@
+name: "CI - Nix"
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  nix:
+    runs-on: "${{ matrix.os }}-latest"
+    strategy:
+      matrix:
+        os: [ubuntu, macos]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v31
+      - uses: cachix/cachix-action@v16
+        with:
+          name: gepetto
+          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+      - run: nix build -L
+
+  check:
+    if: always()
+    name: check-macos-linux-nix
+
+    needs:
+      - nix
+
+    runs-on: Ubuntu-latest
+
+    steps:
+      - name: Decide whether the needed jobs succeeded or failed
+        uses: re-actors/alls-green@release/v1
+        with:
+          jobs: ${{ toJSON(needs) }}

flake.lock

@@ -0,0 +1,33 @@
+{
+  description = "Bindings between Numpy and Eigen using nanobind";
+
+  inputs = {
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  };
+
+  outputs =
+    inputs:
+    inputs.flake-parts.lib.mkFlake { inherit inputs; } {
+      systems = inputs.nixpkgs.lib.systems.flakeExposed;
+      perSystem =
+        { pkgs, self', ... }:
+        {
+          packages = {
+            default = self'.packages.nanoeigenpy;
+            nanoeigenpy = pkgs.python3Packages.nanoeigenpy.overrideAttrs (_: {
+              src = pkgs.lib.fileset.toSource {
+                root = ./.;
+                fileset = pkgs.lib.fileset.unions [
+                  ./CMakeLists.txt
+                  ./include
+                  ./package.xml
+                  ./src
+                  ./tests
+                ];
+              };
+            });
+          };
+        };
+    };
+}