feat: package winapps & the winapps launcher using nix

doc: document installation using Nix

fix: explicitely specify path to inquirer

fix: libvirt group is called libvirtd on nix

fix: set libvirturl for winapps-launcher

fix: refine group change sed expr

feat: add desktop file

fix: do not use source derivation

fix: use install instead of cp

fix: ensure  exists

README.md

@@ -471,6 +471,70 @@ The installer can be run multiple times. To update your installation of WinApps:
 2. Pull the latest changes from the WinApps GitHub repository.
 3. Re-install WinApps using the WinApps installer.
 
+## Installation using Nix
+
+First, follow Step 1 of the normal installation guide to create your VM.
+Then, install WinApps according to the following instructions.
+
+After installation, it will be available under `winapps`, with the installer being available under `winapps-setup`
+and the optional launcher being available under `winapps-launcher.`
+
+### Using standalone Nix
+
+First, make sure Flakes and the `nix` command are enabled.
+In your `~/.config/nix/nix.conf`:
+```
+experimental-features = nix-command flakes
+```
+
+```bash
+nix profile install github:winapps-org/winapps#winapps
+nix profile install github:winapps-org/winapps#winapps-launcher # optional
+```
+
+### On NixOS using Flakes
+
+```nix
+{
+  description = "My configuration";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+
+    winapps = {
+      url = ""github:winapps-org/winapps;
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = {
+    nixpkgs,
+    winapps,
+    ...
+  }: {
+    nixosConfigurations.hostname = nixpkgs.lib.nixosSystem rec {
+      system = "x86_64-linux";
+
+      modules = [
+        ./configuration.nix
+        ({pkgs, ...}: {
+          environment.systemPackages = [
+            winapps.packages.${system}.winapps
+            winapps.packages.${system}.winapps-launcher # optional
+          ];
+        })
+      ];
+    };
+  };
+}
+```
+
+### On NixOS without Flakes
+
+[Flakes aren't real and they can't hurt you.](https://jade.fyi/blog/flakes-arent-real/).
+See https://wiki.nixos.org/wiki/Flakes#Using_nix_flakes_with_NixOS on how to enable Flakes on your system.
+
+
 ## Star History
 <a href="https://star-history.com/#winapps-org/winapps&Date">
  <picture>

flake.nix

@@ -0,0 +1,24 @@
+{
+  description = "WinApps Nix packages & NixOS module";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = {
+    nixpkgs,
+    flake-utils,
+    ...
+  }:
+    flake-utils.lib.eachDefaultSystem (
+      system: let
+        pkgs = import nixpkgs {inherit system;};
+      in {
+        formatter = pkgs.alejandra;
+
+        packages.winapps = pkgs.callPackage ./packages/winapps {};
+        packages.winapps-launcher = pkgs.callPackage ./packages/winapps-launcher {};
+      }
+    );
+}

packages/winapps-launcher/default.nix

@@ -0,0 +1,69 @@
+{
+  stdenv,
+  lib,
+  fetchFromGitHub,
+  makeWrapper,
+  makeDesktopItem,
+  callPackage,
+  yad,
+  ...
+}: let
+  rev = "eaa660d39bf3f49b136c98c87c35e3e12f118f8f";
+  hash = "sha256-7lkx/O4dOdVqAPX6s2IkkM6Ggbzmz9sm++20BBeoUQ4=";
+  icon = "winapps";
+in
+  stdenv.mkDerivation rec {
+    pname = "winapps";
+    version = "git+${rev}";
+
+    src = fetchFromGitHub {
+      owner = "winapps-org";
+      repo = "WinApps-Launcher";
+
+      inherit rev hash;
+    };
+
+    nativeBuildInputs = [makeWrapper];
+    buildInputs = [yad (callPackage ../winapps {})];
+
+    installPhase = ''
+      runHook preInstall
+
+      mkdir -p $out
+      cp -r ./Icons $out/Icons
+
+      sed -E -i \
+        -e "$(printf "%s$out%s" 's|^declare -rx ICONS_PATH="./Icons"|declare -rx ICONS_PATH="' '/Icons"|')" \
+        WinAppsLauncher.sh
+
+      patchShebangs WinAppsLauncher.sh
+      install -m755 -D WinAppsLauncher.sh $out/bin/winapps-launcher
+
+      install -Dm444 -T Icons/AppIcon.svg $out/share/pixmaps/winapps.svg
+
+      wrapProgram $out/bin/winapps-launcher \
+        --set LIBVIRT_DEFAULT_URI "qemu:///system" \
+        --prefix PATH : "${lib.makeBinPath buildInputs}"
+
+      runHook postInstall
+    '';
+
+    desktopItems = [
+      (makeDesktopItem {
+        name = "winapps";
+        exec = "winapps-launcher";
+        icon = "winapps";
+        comment = meta.description;
+        desktopName = "WinApps";
+        categories = ["Utility"];
+      })
+    ];
+
+    meta = with lib; {
+      homepage = "https://github.com/winapps-org/WinApps-Launcher";
+      description = "Graphical launcher for WinApps. Run Windows applications (including Microsoft 365 and Adobe Creative Cloud) on GNU/Linux with KDE, GNOME or XFCE, integrated seamlessly as if they were native to the OS. Wayland is currently unsupported.";
+      mainProgram = "winapps-launcher";
+      platforms = platforms.linux;
+      license = licenses.gpl3;
+    };
+  }

packages/winapps/default.nix

@@ -0,0 +1,70 @@
+{
+  stdenv,
+  lib,
+  fetchFromGitHub,
+  makeWrapper,
+  freerdp3,
+  dialog,
+  libnotify,
+  netcat-gnu,
+  iproute2,
+  ...
+}: let
+  rev = "feat-install-script"; # "9417382ae73d2ae5ad69d1c5c407e8b1e5f001dc";
+  hash = "sha256-iasuufBu+DhulH/hj2uUaM/KzGO7241+PZXuujsT/qI=";
+in
+  stdenv.mkDerivation rec {
+    pname = "winapps";
+    version = "git+${rev}";
+
+    src = fetchFromGitHub {
+      owner = "winapps-org";
+      repo = "winapps";
+
+      inherit rev hash;
+    };
+
+    nativeBuildInputs = [makeWrapper];
+    buildInputs = [freerdp3 libnotify dialog netcat-gnu iproute2];
+
+    installPhase = ''
+      runHook preInstall
+
+      patchShebangs install/inquirer.sh
+
+      sed -E -i \
+        -e 's/grep -q -E "\\blibvirt\\b"/grep -q -E "\\blibvirtd\\b"/' \
+        -e "$(printf "%s$out/src%s" 's|^readonly INQUIRER_PATH="./install/inquirer.sh"|readonly INQUIRER_PATH="' '/install/inquirer.sh"|')" \
+        -e "$(printf "%s$out/src%s" 's|^readonly SYS_SOURCE_PATH="(.*?)"|readonly SYS_SOURCE_PATH="' '"|')" \
+        -e "$(printf "%s$out/src%s" 's|^readonly USER_SOURCE_PATH="(.*?)"|readonly USER_SOURCE_PATH="' '"|')" \
+        -e 's/\$SUDO git -C "\$SOURCE_PATH" pull --no-rebase//g' \
+        -e 's|./setup.sh|winapps-setup|g' \
+        setup.sh
+
+      mkdir -p $out
+      mkdir -p $out/src
+
+      cp -r ./ $out/src/
+
+      install -m755 -D bin/winapps $out/bin/winapps
+      install -m755 -D setup.sh $out/bin/winapps-setup
+
+      for f in winapps-setup winapps; do
+        patchShebangs $out/bin/$f
+
+        wrapProgram $out/bin/$f \
+          --set LIBVIRT_DEFAULT_URI "qemu:///system" \
+          --prefix PATH : "${lib.makeBinPath buildInputs}"
+      done
+
+      runHook postInstall
+    '';
+
+    meta = with lib; {
+      homepage = "https://github.com/winapps-org/winapps";
+      description = "Run Windows applications (including Microsoft 365 and Adobe Creative Cloud) on GNU/Linux with KDE, GNOME or XFCE, integrated seamlessly as if they were native to the OS. Wayland is currently unsupported.";
+      mainProgram = "winapps";
+      platforms = platforms.linux;
+      license = licenses.gpl3;
+    };
+  }