nix: add dev-shell (#944)

* nix: add dev-shell

* docs: add Nix dev shell in contributing docs

.gitignore

@@ -102,39 +102,6 @@ go.work.sum
 # .idea/
 # .vscode/
 
-# If you prefer the allow list template instead of the deny list, see community template:
-# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore
-#
-# Binaries for programs and plugins
-*.exe
-*.exe~
-*.dll
-*.so
-*.dylib
-
-# Test binary, built with `go test -c`
-*.test
-
-# Code coverage profiles and other test artifacts
-*.out
-coverage.*
-*.coverprofile
-profile.cov
-
-# Dependency directories (remove the comment below to include it)
-# vendor/
-
-# Go workspace file
-go.work
-go.work.sum
-
-# env file
-.env
-
-# Editor/IDE
-# .idea/
-# .vscode/
-
 bin/
 
 # Extracted source trees in Ubuntu package directories  
@@ -142,3 +109,7 @@ distro/ubuntu/*/dms-git-repo/
 distro/ubuntu/*/DankMaterialShell-*/
 distro/ubuntu/danklinux/*/dsearch-*/
 distro/ubuntu/danklinux/*/dgop-*/
+
+# direnv
+.envrc
+.direnv/

CONTRIBUTING.md

@@ -12,6 +12,21 @@ Enable pre-commit hooks to catch CI failures before pushing:
 git config core.hooksPath .githooks
 ```
 
+### Nix Development Shell
+
+If you have Nix installed with flakes enabled, you can use the provided development shell which includes all necessary dependencies:
+
+```bash
+nix develop
+```
+
+This will provide:
+- Go 1.24 toolchain (go, gopls, delve, go-tools) and GNU Make
+- Quickshell and required QML packages
+- Properly configured QML2_IMPORT_PATH
+
+The dev shell automatically creates the `.qmlls.ini` file in the `quickshell/` directory.
+
 ## VSCode Setup
 
 This is a monorepo, the easiest thing to do is to open an editor in either `quickshell`, `core`, or both depending on which part of the project you are working on.

flake.nix

@@ -52,7 +52,8 @@
                     + "_"
                     + (self.shortRev or "dirty");
             in {
-                dms-shell = pkgs.buildGoModule (let
+                dms-shell = pkgs.buildGoModule (
+                    let
                         rootSrc = ./.;
                     in {
                         inherit version;
@@ -68,9 +69,9 @@
                             "-X main.Version=${version}"
                         ];
 
-                    nativeBuildInputs = [
-                        pkgs.installShellFiles
-                        pkgs.makeWrapper
+                        nativeBuildInputs = with pkgs; [
+                            installShellFiles
+                            .makeWrapper
                         ];
 
                         postInstall = ''
@@ -112,7 +113,8 @@
                             mainProgram = "dms";
                             platforms = pkgs.lib.platforms.linux;
                         };
-                });
+                    }
+                );
 
                 default = self.packages.${system}.dms-shell;
             }
@@ -125,5 +127,38 @@
         nixosModules.dankMaterialShell = mkModuleWithDmsPkgs ./distro/nix/nixos.nix;
 
         nixosModules.greeter = mkModuleWithDmsPkgs ./distro/nix/greeter.nix;
+
+        devShells = forEachSystem (
+            system: pkgs: let
+                qmlPkgs =
+                    [
+                        quickshell.packages.${system}.default
+                    ]
+                    ++ (with pkgs.kdePackages; [
+                        qtdeclarative
+                        kirigami.unwrapped
+                        sonnet
+                        qtmultimedia
+                    ]);
+            in {
+                default = pkgs.mkShell {
+                    buildInputs = with pkgs;
+                        [
+                            go_1_24
+                            gopls
+                            delve
+                            go-tools
+                            gnumake
+                        ]
+                        ++ qmlPkgs;
+
+                    shellHook = ''
+                        touch quickshell/.qmlls.ini 2>/dev/null
+                    '';
+
+                    QML2_IMPORT_PATH = pkgs.lib.concatStringsSep ":" (map (o: "${o}/lib/qt-6/qml") qmlPkgs);
+                };
+            }
+        );
     };
 }