Add flake.nix file for easy building

.gitignore

@@ -21,3 +21,4 @@ install_manifest.txt
 
 defaults.c
 runner.c
+result

CMakeLists.txt

@@ -1,6 +1,6 @@
 # preamble
 project( Lsyncd )
-cmake_minimum_required( VERSION 2.8 )
+cmake_minimum_required( VERSION 3.10 )
 set( LSYNCD_VERSION 2.2.3 )
 set( CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/" )
 

flake.lock

@@ -0,0 +1,43 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1637014545,
+        "narHash": "sha256-26IZAc5yzlD9FlDT54io1oqG/bBoyka+FJk5guaX4x4=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "bba5dcc8e0b20ab664967ad83d24d64cb64ec4f4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1637709854,
+        "narHash": "sha256-y98gkOBUEiPAmwRhZPzTQ0YayZKPS2loNgA0GcNewMM=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "9c43581935a23d56734bd02da0ba8e7fda21e747",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "release-21.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,52 @@
+{
+  description = "Lsyncd (Live Syncing Daemon)";
+  
+  inputs.nixpkgs.url = "github:nixos/nixpkgs/release-21.05";
+  inputs.flake-utils.url = "github:numtide/flake-utils";
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem
+      (system:
+        let
+          pkgs = nixpkgs.legacyPackages.${system};
+          defaultDeps = with pkgs; [
+            gcc
+            cmake
+            glib
+          ];
+          version = builtins.elemAt
+            (builtins.match ''.*set\(.LSYNCD_VERSION ([0-9\.]*).*''
+              (builtins.substring 0 500
+                (builtins.readFile ./CMakeLists.txt))) 0;
+            #   buildTypes = { 
+            #     lua5_2 = pkgs.lua5_2;
+            #     lua5_3 = pkgs.lua5_3;
+            #   };
+        in
+        let
+           mkLsync = luaPackage: pkgs.stdenv.mkDerivation ({
+            inherit version;
+            name = "lsyncd";
+
+            src = ./.;
+            
+            # nativeBuildInputs = [ pkgs.qt5.wrapQtAppsHook ]; 
+            buildInputs = defaultDeps ++ [luaPackage];
+        });
+        in
+        {
+          packages = {
+              lsyncd = mkLsync pkgs.lua5_3;
+              lsyncd_lua5_1 = mkLsync pkgs.lua5_1;
+              lsyncd_lua5_2 = mkLsync pkgs.lua5_2;
+              lsyncd_lua5_3 = mkLsync pkgs.lua5_3;
+              lsyncd_lua5_4 = mkLsync pkgs.lua5_4;
+          };
+
+          defaultPackage = self.packages.${system}.lsyncd;
+          devShell = pkgs.mkShell {
+            buildInputs = defaultDeps;
+          };
+        }
+      );
+}