olifant: init A 0.2.1-beta5

This is a fork of tootle (which is not abandoned btw), so the expression is mostly
the same.

pkgs/applications/misc/olifant/default.nix

@@ -0,0 +1,68 @@
+{ stdenv
+, fetchFromGitHub
+, fetchpatch
+, vala
+, meson
+, ninja
+, pkgconfig
+, python3
+, libgee
+, gsettings-desktop-schemas
+, gnome3
+, pantheon
+, wrapGAppsHook
+, gtk3
+, json-glib
+, glib
+, glib-networking
+}:
+
+stdenv.mkDerivation rec {
+  pname = "olifant";
+  version = "0.2.1-beta5";
+
+  src = fetchFromGitHub {
+    owner = "cleac";
+    repo = pname;
+    rev = version;
+    sha256 = "1fpyg3nii75vmsdhp8x4yvhi3npvp3xnbqmd0qcidn05mbsam68r";
+  };
+
+  nativeBuildInputs = [
+    meson
+    ninja
+    pkgconfig
+    python3
+    vala
+    wrapGAppsHook
+  ];
+
+  buildInputs = [
+    glib
+    glib-networking
+    gnome3.libsoup
+    gsettings-desktop-schemas
+    gtk3
+    json-glib
+    libgee
+    pantheon.granite
+  ];
+
+  postPatch = ''
+    chmod +x meson/post_install.py
+    patchShebangs meson/post_install.py
+  '';
+
+  passthru = {
+    updateScript = pantheon.updateScript {
+      attrPath = pname;
+    };
+  };
+
+  meta = with stdenv.lib; {
+    description = "A simple Mastodon client designed for elementary OS, originally developed by @bleakgrey";
+    homepage = "https://github.com/cleac/olifant";
+    license = licenses.gpl3;
+    maintainers = with maintainers; [ worldofpeace ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -10732,7 +10732,7 @@ in
   kube-prompt = callPackage ../development/tools/kube-prompt { };
 
   kubeprompt = callPackage ../development/tools/kubeprompt { };
-  
+
   kubespy = callPackage ../applications/networking/cluster/kubespy { };
 
   kubicorn = callPackage ../development/tools/kubicorn {  };
@@ -22821,6 +22821,8 @@ in
 
   neovim-qt = libsForQt5.callPackage ../applications/editors/neovim/qt.nix { };
 
+  olifant = callPackage ../applications/misc/olifant { };
+
   gnvim-unwrapped = callPackage ../applications/editors/neovim/gnvim {
     gtk = pkgs.gtk3;
   };