first commit

2025-08-28 00:21:50 +01:00
commit 3971a76d02
5 changed files with 167 additions and 0 deletions
--- a/flake.nix
+++ b/flake.nix
@@ -0,0 +1,96 @@
+{
+  description = "A Nix-flake-based Python development environment for the Fagos Discord bot";
+  inputs.nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1";
+  outputs = inputs:
+    let
+      supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
+      forEachSupportedSystem = f: inputs.nixpkgs.lib.genAttrs supportedSystems (system: f {
+        pkgs = import inputs.nixpkgs { inherit system; };
+      });
+      version = "3.13";
+    in
+    {
+      # Development shell for `nix develop`
+      devShells = forEachSupportedSystem ({ pkgs }:
+        let
+          concatMajorMinor = v:
+            pkgs.lib.pipe v [
+              pkgs.lib.versions.splitVersion
+              (pkgs.lib.sublist 0 2)
+              pkgs.lib.concatStrings
+            ];
+          python = pkgs."python${concatMajorMinor version}";
+        in
+        {
+          default = pkgs.mkShell {
+            venvDir = ".venv";
+            postShellHook = ''
+              venvVersionWarn() {
+                local venvVersion
+                venvVersion="$("$venvDir/bin/python" -c 'import platform; print(platform.python_version())')"
+                [[ "$venvVersion" == "${python.version}" ]] && return
+                cat <<EOF
+              Warning: Python version mismatch: [$venvVersion (venv)] != [${python.version}]
+                       Delete '$venvDir' and reload to rebuild for version ${python.version}
+              EOF
+              }
+              venvVersionWarn
+            '';
+            packages = with python.pkgs; [
+              venvShellHook
+              pip
+              discordpy
+            ];
+          };
+        });
+
+      # Packages for `nix build`
+      packages = forEachSupportedSystem ({ pkgs }:
+        let
+          concatMajorMinor = v:
+            pkgs.lib.pipe v [
+              pkgs.lib.versions.splitVersion
+              (pkgs.lib.sublist 0 2)
+              pkgs.lib.concatStrings
+            ];
+          python = pkgs."python${concatMajorMinor version}";
+          # Define the bot package using buildPythonApplication
+          fagos = python.pkgs.buildPythonApplication {
+            pname = "fagos";
+            version = "0.1.0";
+            src = ./.;
+            format = "pyproject"; # Remove if no pyproject.toml
+            nativeBuildInputs = with python.pkgs; [ setuptools ];
+            propagatedBuildInputs = with python.pkgs; [ discordpy ];
+            doCheck = false;
+          };
+        in
+        {
+          default = fagos;
+        });
+
+      # Apps for `nix run`
+      apps = forEachSupportedSystem ({ pkgs }:
+        let
+          concatMajorMinor = v:
+            pkgs.lib.pipe v [
+              pkgs.lib.versions.splitVersion
+              (pkgs.lib.sublist 0 2)
+              pkgs.lib.concatStrings
+            ];
+          python = pkgs."python${concatMajorMinor version}";
+          # Create a Python environment with discordpy
+          myPython = python.withPackages (ps: with ps; [ discordpy ]);
+          # Create a shell script to run bot.py
+          fagosApp = pkgs.writeShellScriptBin "fagos" ''
+            exec ${myPython}/bin/python ${./bot.py} "$@"
+          '';
+        in
+        {
+          default = {
+            type = "app";
+            program = "${fagosApp}/bin/fagos";
+          };
+        });
+    };
+}