Update environment

.gitignore

@@ -4,3 +4,4 @@
 cmake-build-debug
 cmake-build-release
 .cache/clangd/index
+result

compile_commands.json

@@ -1 +1 @@
-./cmake-build-debug/compile_commands.json
+./cmake-build-release/compile_commands.json

flake.lock

@@ -1,52 +1,15 @@
 {
   "nodes": {
-    "devshell": {
-      "inputs": {
-        "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs"
-      },
-      "locked": {
-        "lastModified": 1713532798,
-        "narHash": "sha256-wtBhsdMJA3Wa32Wtm1eeo84GejtI43pMrFrmwLXrsEc=",
-        "owner": "numtide",
-        "repo": "devshell",
-        "rev": "12e914740a25ea1891ec619bb53cf5e6ca922e40",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "devshell",
-        "type": "github"
-      }
-    },
     "flake-utils": {
       "inputs": {
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1701680307,
+        "lastModified": 1731533236,
-        "narHash": "sha256-kAuep2h5ajznlPMD9rnQyffWG8EM/C73lejGofXvdM8=",
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "4022d587cbbfd70fe950c1e2083a02621806a725",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
-    "flake-utils_2": {
-      "inputs": {
-        "systems": "systems_2"
-      },
-      "locked": {
-        "lastModified": 1710146030,
-        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
         "type": "github"
       },
       "original": {
@@ -57,59 +20,46 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1704161960,
+        "lastModified": 1751180975,
-        "narHash": "sha256-QGua89Pmq+FBAro8NriTuoO/wNaUtugt29/qqA8zeeM=",
+        "narHash": "sha256-BKk4yDiXr4LdF80OTVqYJ53Q74rOcA/82EClXug8xsY=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "63143ac2c9186be6d9da6035fa22620018c85932",
+        "rev": "a48741b083d4f36dd79abd9f760c84da6b4dc0e5",
         "type": "github"
       },
       "original": {
-        "owner": "NixOS",
+        "id": "nixpkgs",
-        "ref": "nixpkgs-unstable",
+        "type": "indirect"
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_2": {
-      "locked": {
-        "lastModified": 1717112898,
-        "narHash": "sha256-7R2ZvOnvd9h8fDd65p0JnB7wXfUvreox3xFdYWd1BnY=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "6132b0f6e344ce2fe34fc051b72fb46e34f668e0",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
       }
     },
     "root": {
       "inputs": {
-        "devshell": "devshell",
+        "flake-utils": "flake-utils",
-        "flake-utils": "flake-utils_2",
+        "nixpkgs": "nixpkgs",
-        "nixpkgs": "nixpkgs_2"
+        "rust-overlay": "rust-overlay"
       }
     },
-    "systems": {
+    "rust-overlay": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
       "locked": {
-        "lastModified": 1681028828,
+        "lastModified": 1751251399,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "narHash": "sha256-y+viCuy/eKKpkX1K2gDvXIJI/yzvy6zA3HObapz9XZ0=",
-        "owner": "nix-systems",
+        "owner": "oxalica",
-        "repo": "default",
+        "repo": "rust-overlay",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "rev": "b22d5ee8c60ed1291521f2dde48784edd6bf695b",
         "type": "github"
       },
       "original": {
-        "owner": "nix-systems",
+        "owner": "oxalica",
-        "repo": "default",
+        "repo": "rust-overlay",
         "type": "github"
       }
     },
-    "systems_2": {
+    "systems": {
       "locked": {
         "lastModified": 1681028828,
         "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",

flake.nix

@@ -1,88 +1,247 @@
-{
+rec {
-  description = "C/C++ Environment";
+  description = "C++ Brainfuck Interpreter";
 
-  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+  inputs = {
-  inputs.flake-utils.url = "github:numtide/flake-utils";
+    nixpkgs.url = "nixpkgs"; # Use nixpkgs from system registry
-  inputs.devshell.url = "github:numtide/devshell";
+    flake-utils.url = "github:numtide/flake-utils";
+
+    rust-overlay.url = "github:oxalica/rust-overlay";
+    rust-overlay.inputs.nixpkgs.follows = "nixpkgs";
+  };
 
   outputs = {
     self,
     nixpkgs,
     flake-utils,
-    devshell,
+    rust-overlay,
   }:
+  # Create a shell (and possibly package) for each possible system, not only x86_64-linux
     flake-utils.lib.eachDefaultSystem (system: let
       pkgs = import nixpkgs {
         inherit system;
-        config.allowUnfree = true; # For clion
+        config.allowUnfree = true;
-        overlays = [devshell.overlays.default];
+        overlays = [
+          rust-overlay.overlays.default
+        ];
+      };
+      inherit (pkgs) lib stdenv;
+
+      # ===========================================================================================
+      # Define custom dependencies
+      # ===========================================================================================
+
+      python = pkgs.python313.withPackages (p:
+        with p; [
+          pyside6
+          ffmpeg-python
+          matplotlib
+          numpy
+        ]);
+
+      rust = pkgs.rust-bin.stable.latest.default.override {
+        extensions = ["rust-src"]; # Include the Rust stdlib source (for IntelliJ)
       };
 
-      # NOTE: Usual 64 bit compilers that don't collide
+      # 64 bit C/C++ compilers that don't collide (use the same libc)
       bintools = pkgs.wrapBintoolsWith {
-        bintools = pkgs.bintools.bintools;
+        bintools = pkgs.bintools.bintools; # Unwrapped bintools
         libc = pkgs.glibc;
       };
-      gcc13 = pkgs.hiPrio (pkgs.wrapCCWith {
+      gcc = pkgs.hiPrio (pkgs.wrapCCWith {
-        cc = pkgs.gcc13.cc;
+        cc = pkgs.gcc.cc; # Unwrapped gcc
         libc = pkgs.glibc;
         bintools = bintools;
       });
-      clang16 = pkgs.wrapCCWith {
+      clang = pkgs.wrapCCWith {
-        cc = pkgs.clang_16.cc;
+        cc = pkgs.clang.cc; # Unwrapped clang
         libc = pkgs.glibc;
         bintools = bintools;
       };
 
-      # NOTE: Multilib compilers that don't collide
+      # Multilib C/C++ compilers that don't collide (use the same libc)
-      bintools_multi = pkgs.wrapBintoolsWith {
+      bintools_multilib = pkgs.wrapBintoolsWith {
-        bintools = pkgs.bintools.bintools; # Get the unwrapped bintools from the wrapper
+        bintools = pkgs.bintools.bintools; # Unwrapped bintools
         libc = pkgs.glibc_multi;
       };
-      gcc13_multi = pkgs.hiPrio (pkgs.wrapCCWith {
+      gcc_multilib = pkgs.hiPrio (pkgs.wrapCCWith {
-        cc = pkgs.gcc13.cc; # Get the unwrapped gcc from the wrapper
+        cc = pkgs.gcc.cc; # Unwrapped gcc
         libc = pkgs.glibc_multi;
-        bintools = bintools_multi;
+        bintools = bintools_multilib;
       });
-      clang16_multi = pkgs.wrapCCWith {
+      clang_multilib = pkgs.wrapCCWith {
-        cc = pkgs.clang_16.cc;
+        cc = pkgs.clang.cc; # Unwrapped clang
         libc = pkgs.glibc_multi;
-        bintools = bintools_multi;
+        bintools = bintools_multilib;
       };
-    in {
-      # devShell = pkgs.devshell.mkShell ...
-      devShell = pkgs.devshell.mkShell {
-        name = "C/C++ Environment";
 
-        packages = with pkgs; [
+      # ===========================================================================================
-          # Compilers
+      # Specify dependencies
-          bintools
+      # https://nixos.org/manual/nixpkgs/stable/#ssec-stdenv-dependencies-overview
-          gcc13
+      # Just for a "nix develop" shell, buildInputs can be used for everything.
-          clang16
+      # ===========================================================================================
-          # bintools_multi
-          # gcc13_multi
-          # clang15_multi
 
-          # Native buildinputs
+      # Add dependencies to nativeBuildInputs if they are executed during the build:
-          gnumake
+      # - Those which are needed on $PATH during the build, for example cmake and pkg-config
-          cmake
+      # - Setup hooks, for example makeWrapper
-          # nasm
+      # - Interpreters needed by patchShebangs for build scripts (with the --build flag), which can be the case for e.g. perl
+      nativeBuildInputs = with pkgs; [
+        # Languages:
+        # python
+        # rust
+        bintools
+        gcc
+        clang
+        # bintools_multilib
+        # gcc_multilib
+        # clang_multilib
 
-          # Development
+        # C/C++:
-          # bear # To generate compilation database
+        gdb
-          gdb
+        valgrind
-          cling # To try out my bullshit implementations
+        gnumake
-          clang-tools_18
+        cmake
-          # doxygen # Generate docs + graphs
+        # pkg-config
-        ];
 
-        commands = [
+        # Qt:
-          # {
+        # qt6.wrapQtAppsHook # For the shellHook
-          #   name = "ide";
+      ];
-          #   help = "Run clion for project";
+
-          #   command = "clion &>/dev/null ./ &";
+      # Add dependencies to buildInputs if they will end up copied or linked into the final output or otherwise used at runtime:
-          # }
+      # - Libraries used by compilers, for example zlib
-        ];
+      # - Interpreters needed by patchShebangs for scripts which are installed, which can be the case for e.g. perl
+      buildInputs = with pkgs; [
+        # C/C++:
+        # boost
+        # sfml
+
+        # Qt:
+        # qt6.qtbase
+        # qt6.full
+      ];
+
+      # ===========================================================================================
+      # Define buildable + installable packages
+      # ===========================================================================================
+
+      package = stdenv.mkDerivation {
+        inherit nativeBuildInputs buildInputs;
+        pname = "bfuck";
+        version = "1.0.0";
+        src = ./.;
+
+        installPhase = ''
+          mkdir -p $out/bin
+          mv ./bfuck $out/bin
+        '';
+      };
+    in rec {
+      # Provide package for "nix build"
+      defaultPackage = package;
+      defaultApp = flake-utils.lib.mkApp {
+        drv = defaultPackage;
+      };
+
+      # Provide environment for "nix develop"
+      devShell = pkgs.mkShell {
+        inherit nativeBuildInputs buildInputs;
+        name = description;
+
+        # =========================================================================================
+        # Define environment variables
+        # =========================================================================================
+
+        # Rust stdlib source:
+        # RUST_SRC_PATH = "${rust}/lib/rustlib/src/rust/library";
+
+        # Custom dynamic libraries:
+        # LD_LIBRARY_PATH = builtins.concatStringsSep ":" [
+        #   # Rust Bevy GUI app
+        #   "${pkgs.xorg.libX11}/lib"
+        #   "${pkgs.xorg.libXcursor}/lib"
+        #   "${pkgs.xorg.libXrandr}/lib"
+        #   "${pkgs.xorg.libXi}/lib"
+        #   "${pkgs.libGL}/lib"
+        # ];
+
+        # Dynamic libraries from buildinputs:
+        # LD_LIBRARY_PATH = nixpkgs.lib.makeLibraryPath buildInputs;
+
+        # =========================================================================================
+        # Define shell environment
+        # =========================================================================================
+
+        # Setup the shell when entering the "nix develop" environment (bash script).
+        shellHook = let
+          mkCmakeScript = type: let
+            typeLower = lib.toLower type;
+          in
+            pkgs.writers.writeFish "cmake-${typeLower}.fish" ''
+              cd $FLAKE_PROJECT_ROOT
+
+              echo "Removing build directory ./cmake-build-${typeLower}/"
+              rm -rf ./cmake-build-${typeLower}
+
+              echo "Creating build directory"
+              mkdir cmake-build-${typeLower}
+              cd cmake-build-${typeLower}
+
+              echo "Running cmake"
+              cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE="${type}" -DCMAKE_EXPORT_COMPILE_COMMANDS="On" ..
+
+              echo "Linking compile_commands.json"
+              cd ..
+              ln -sf ./cmake-build-${typeLower}/compile_commands.json ./compile_commands.json
+            '';
+
+          cmakeDebug = mkCmakeScript "Debug";
+          cmakeRelease = mkCmakeScript "Release";
+
+          mkBuildScript = type: let
+            typeLower = lib.toLower type;
+          in
+            pkgs.writers.writeFish "cmake-build.fish" ''
+              cd $FLAKE_PROJECT_ROOT/cmake-build-${typeLower}
+
+              echo "Running cmake"
+              cmake --build .
+            '';
+
+          buildDebug = mkBuildScript "Debug";
+          buildRelease = mkBuildScript "Release";
+
+          # Use this to specify commands that should be ran after entering fish shell
+          initProjectShell = pkgs.writers.writeFish "init-shell.fish" ''
+            echo "Entering \"${description}\" environment..."
+
+            # Determine the project root, used e.g. in cmake scripts
+            set -g -x FLAKE_PROJECT_ROOT (git rev-parse --show-toplevel)
+
+            # Build the provided NixOS package
+            abbr -a build "nix build -L"
+
+            # Rust Bevy:
+            # abbr -a build-release-windows "CARGO_FEATURE_PURE=1 cargo xwin build --release --target x86_64-pc-windows-msvc"
+
+            # C/C++:
+            abbr -a cmake-debug "${cmakeDebug}"
+            abbr -a cmake-release "${cmakeRelease}"
+            abbr -a build-debug "${buildDebug}"
+            abbr -a build-release "${buildRelease}"
+          '';
+        in
+          builtins.concatStringsSep "\n" [
+            # Launch into pure fish shell
+            ''
+              exec "$(type -p fish)" -C "source ${initProjectShell} && abbr -a menu '${pkgs.bat}/bin/bat "${initProjectShell}"'"
+            ''
+
+            # Qt: Launch into wrapped fish shell
+            # ''
+            #   fishdir=$(mktemp -d)
+            #   makeWrapper "$(type -p fish)" "$fishdir/fish" "''${qtWrapperArgs[@]}"
+            #   exec "$fishdir/fish" -C "source ${initProjectShell} && abbr -a menu '${pkgs.bat}/bin/bat "${initProjectShell}"'"
+            # ''
+          ];
       };
     });
 }