1 files changed, 77 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/applications/networking/instant-messengers/riot/riot-desktop.nix b/nixpkgs/pkgs/applications/networking/instant-messengers/riot/riot-desktop.nix
new file mode 100644
index 000000000000..03f1cc2471e9
--- /dev/null
+++ b/nixpkgs/pkgs/applications/networking/instant-messengers/riot/riot-desktop.nix
@@ -0,0 +1,77 @@
+{ stdenv, fetchFromGitHub, yarn2nix, makeWrapper, makeDesktopItem, electron, riot-web }:
+
+let
+  executableName = "riot-desktop";
+  version = "1.0.4";
+  riot-web-src = fetchFromGitHub {
+    owner = "vector-im";
+    repo = "riot-web";
+    rev = "v${version}";
+    sha256 = "152mi81miams5a7l9rd12bnf6wkd1r0lyicgr35r5fq0p6z7a4dk";
+  };
+
+in yarn2nix.mkYarnPackage rec {
+  name = "riot-desktop-${version}";
+  inherit version;
+
+  src = "${riot-web-src}/electron_app";
+
+  # The package manifest should be copied on each update of this package.
+  # > cp ${riot-web-src}/electron_app/package.json riot-desktop-package.json
+  packageJSON = ./riot-desktop-package.json;
+
+  # The dependency expression can be regenerated using nixos.yarn2nix with the following command:
+  # > yarn2nix --lockfile=${riot-web-src}/electron_app/yarn.lock > riot-desktop-yarndeps.nix
+  yarnNix = ./riot-desktop-yarndeps.nix;
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  installPhase = ''
+    # resources
+    mkdir -p "$out/share/riot"
+    ln -s '${riot-web}' "$out/share/riot/webapp"
+    cp -r '${riot-web-src}/origin_migrator' "$out/share/riot/origin_migrator"
+    cp -r '.' "$out/share/riot/electron"
+
+    # icons
+    for icon in $out/share/riot/electron/build/icons/*.png; do
+      mkdir -p "$out/share/icons/hicolor/$(basename $icon .png)/apps"
+      ln -s "$icon" "$out/share/icons/hicolor/$(basename $icon .png)/apps/riot.png"
+    done
+
+    # desktop item
+    mkdir -p "$out/share"
+    ln -s "${desktopItem}/share/applications" "$out/share/applications"
+
+    # executable wrapper
+    makeWrapper '${electron}/bin/electron' "$out/bin/${executableName}" \
+      --add-flags "$out/share/riot/electron"
+  '';
+
+  # The desktop item properties should be kept in sync with data from upstream:
+  # * productName and description from
+  #   https://github.com/vector-im/riot-web/blob/develop/electron_app/package.json
+  # * category and StartupWMClass from the build.linux section of
+  #   https://github.com/vector-im/riot-web/blob/develop/package.json
+  desktopItem = makeDesktopItem {
+    inherit name;
+    exec = executableName;
+    icon = "riot";
+    desktopName = "Riot";
+    genericName = "Matrix Client";
+    comment = meta.description;
+    categories = "Network;InstantMessaging;Chat;";
+    extraEntries = ''
+      StartupWMClass="riot"
+    '';
+  };
+
+  meta = with stdenv.lib; {
+    description = "A feature-rich client for Matrix.org";
+    homepage = https://about.riot.im/;
+    license = licenses.asl20;
+    maintainers = with maintainers; [ pacien ];
+    inherit (electron.meta) platforms;
+  };
+}
+