Added nix flake for nix package manager compatibility. (#248)

* Added nix flake for nix package manager compatibility.

Co-authored-by: llamato <llamato@users.noreply.github.com>
Co-authored-by: enweave <enweave@gmail.com>
Co-authored-by: Quinten Muyllaert <72012305+QuintenMuyllaert@users.noreply.github.com>

README.rst

@@ -358,6 +358,8 @@ Files
 - ``Makefile`` - make(1) file
 - ``README`` - This file
 - ``*.h`` and ``*.c`` - C code of F3
+- ``flake.nix`` - nix package manager configuration allowing automatic building and or installation of repository contents.
+- ``flake.lock`` - specifies build dependency package versions so the nix package manager can build f3
 
 Bash scripts
 ------------

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1759977445,
+        "narHash": "sha256-LYr4IDfuihCkFAkSYz5//gT2r1ewcWBYgd5AxPzPLIo=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "2dad7af78a183b6c486702c18af8a9544f298377",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,50 @@
+{
+  description = "F3 - Fight flash fraud";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+  };
+
+  outputs = { self, nixpkgs }: {
+    packages = nixpkgs.lib.genAttrs [ "aarch64-linux" "x86_64-linux" ] (system:
+    let
+      pkgs = import nixpkgs { inherit system; };
+    in
+    {
+      	f3 = pkgs.stdenv.mkDerivation {
+        pname = "f3";
+        version = builtins.head (builtins.match ''.*#define[[:space:]]+F3_STR_VERSION[[:space:]]+"([0-9.]+)".*'' (builtins.readFile (self + "/version.h")));
+        src = ./.;
+        nativeBuildInputs = [ pkgs.clang ];
+        buildInputs = [ pkgs.libusb1 pkgs.parted];
+        installPhase = ''
+          runHook preInstall
+					mkdir -p $out/bin
+					make install PREFIX=$out
+          make install-extra PREFIX=$out
+					runHook postInstall
+        '';
+
+        meta = with pkgs.lib; {
+          description = "F3 - Fight flash fraud";
+          license = licenses.gpl3;
+          maintainers = [ maintainers.llamato ];
+          platforms = platforms.unix;
+        };
+      };
+
+			devShells.${system}.default = pkgs.mkShell {
+        buildInputs = with pkgs; [ 
+					cmake
+					gcc
+					gdb
+				];
+      };
+    });
+
+		defaultPackage = {
+			x86_64-linux = self.packages.x86_64-linux.f3;
+			aarch64-linux = self.packages.aarch64-linux.f3;
+		};
+  };
+}