Add devShell to flake.nix. Build every available stable architecture. Remove shell.nix. Add nix github action

.github/workflows/nix.yml

@@ -0,0 +1,13 @@
+name: "build nix flake"
+on:
+  pull_request:
+  push:
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+      with:
+       submodules: true
+    - uses: cachix/install-nix-action@v25
+    - run: nix build '.?submodules=1'

flake.nix

@@ -23,47 +23,57 @@
         };
         enableGui = false;
       in
-      {
-        packages = {
-          nextpnr = pkgs.stdenv.mkDerivation {
-            pname = "nextpnr";
-            version = "0.6";
-            src = ./.;
+        {
+          packages = {
+            nextpnr = pkgs.stdenv.mkDerivation {
+              pname = "nextpnr";
+              version = "0.6";
+              src = ./.;
 
-            nativeBuildInputs = [ pkgs.cmake ]
-              ++ (pkgs.lib.optional enableGui pkgs.qt6.wrapQtAppsHook);
-            buildInputs = [
-              (pkgs.boost.override { python = pkgs.python3; enablePython = true; })
-              pkgs.python3
-              pkgs.eigen
-              myPythonPackages.apycula
-              pkgs.icestorm
-              pkgs.trellis
-            ] ++ (pkgs.lib.optional enableGui pkgs.qt6.qtbase)
+              nativeBuildInputs = [ pkgs.cmake ]
+                                  ++ (pkgs.lib.optional enableGui pkgs.qt6.wrapQtAppsHook);
+              buildInputs = [
+                (pkgs.boost.override { python = pkgs.python3; enablePython = true; })
+                pkgs.python3
+                pkgs.eigen
+                myPythonPackages.apycula
+                pkgs.icestorm
+                pkgs.trellis
+                pkgs.tcl
+                pkgs.zlib
+                pkgs.capnproto
+                pkgs.lzma
+                pkgs.tk
+                pkgs.wget
+              ] ++ (pkgs.lib.optional enableGui pkgs.qt6.qtbase)
               ++ (pkgs.lib.optional pkgs.stdenv.cc.isClang pkgs.llvmPackages.openmp);
 
-            cmakeFlags = [
-              "-DARCH=generic;ice40;ecp5;gowin"
-              "-DBUILD_TESTS=ON"
-              "-DICESTORM_INSTALL_PREFIX=${pkgs.icestorm}"
-              "-DTRELLIS_INSTALL_PREFIX=${pkgs.trellis}"
-              "-DTRELLIS_LIBDIR=${pkgs.trellis}/lib/trellis"
-              "-DGOWIN_BBA_EXECUTABLE=${myPythonPackages.apycula}/bin/gowin_bba"
-              "-DUSE_OPENMP=ON"
-              # warning: high RAM usage
-              "-DSERIALIZE_CHIPDBS=OFF"
-            ] ++ (pkgs.lib.optional enableGui "-DBUILD_GUI=ON");
+              cmakeFlags = [
+                "-DARCH=all"
+                "-DBUILD_TESTS=ON"
+                "-DICESTORM_INSTALL_PREFIX=${pkgs.icestorm}"
+                "-DTRELLIS_INSTALL_PREFIX=${pkgs.trellis}"
+                "-DTRELLIS_LIBDIR=${pkgs.trellis}/lib/trellis"
+                "-DGOWIN_BBA_EXECUTABLE=${myPythonPackages.apycula}/bin/gowin_bba"
+                "-DUSE_OPENMP=ON"
+                # warning: high RAM usage
+                "-DSERIALIZE_CHIPDBS=OFF"
+              ] ++ (pkgs.lib.optional enableGui "-DBUILD_GUI=ON");
 
-            meta = with pkgs.lib; {
-              description = "Place and route tool for FPGAs";
-              homepage = "https://github.com/yosyshq/nextpnr";
-              license = licenses.isc;
-              platforms = platforms.all;
-              maintainers = with maintainers; [ thoughtpolice emily ];
+              meta = with pkgs.lib; {
+                description = "Place and route tool for FPGAs";
+                homepage = "https://github.com/yosyshq/nextpnr";
+                license = licenses.isc;
+                platforms = platforms.all;
+                maintainers = with maintainers; [ ];
+              };
             };
           };
-        };
 
-        packages.default = self.packages.${system}.nextpnr;
-      });
+          packages.default = self.packages.${system}.nextpnr;
+
+          devShell = pkgs.mkShell {
+            buildInputs = [ self.packages.${system}.default ];
+          };
+        });
 }

shell.nix

@@ -1,48 +0,0 @@
-{ pkgs ? import (fetchTarball https://github.com/NixOS/nixpkgs/archive/23.05.tar.gz) {} }:
-
-let
-  pythonPkgs = pkgs.python3Packages;
-  boostPython = pkgs.boost.override { python = pythonPkgs.python; enablePython = true; };
-  vscode = pkgs.vscode-with-extensions.override {
-    vscodeExtensions = with pkgs.vscode-extensions; [
-      bbenoist.nix
-      ms-vscode.cpptools
-      ms-vscode.cmake-tools
-      twxs.cmake
-      usernamehw.errorlens
-      llvm-vs-code-extensions.vscode-clangd
-    ] ++ pkgs.vscode-utils.extensionsFromVscodeMarketplace [
-      {
-        name = "VerilogHDL";
-        publisher = "mshr-h";
-        version = "1.11.4";
-        sha256 = "sha256-4JY0eaN2IkwHv8u8X6ejDXk6vT1qB4vJjWdIy8b/jj4=";
-      }
-    ];
-  };
-in pkgs.mkShell {
-  buildInputs = with pkgs; [
-    cmake
-    eigen
-    boostPython
-    pythonPkgs.python
-    pythonPkgs.apycula
-    libsForQt5.qt5.qtbase
-    llvmPackages.openmp
-    icestorm
-    trellis
-    mold
-    yosys
-    clang
-    valgrind
-    cling
-    gdb
-    vscode
-  ];
-
-  shellHook = ''
-    export TRELLIS_INSTALL_PREFIX=${pkgs.trellis}
-    export ICESTORM_INSTALL_PREFIX=${pkgs.icestorm}
-    export QT_QPA_PLATFORM_PLUGIN_PATH="${pkgs.libsForQt5.qt5.qtbase.bin}/lib/qt-${pkgs.libsForQt5.qt5.qtbase.version}/plugins";
-  '';
-}