gns3Packages.{server,gui}Preview: 2.1.12 -> 2.2.0a1

pkgs/applications/networking/gns3/default.nix

@@ -2,8 +2,7 @@
 
 let
   stableVersion = "2.1.12";
-  # Currently there is no preview version.
-  previewVersion = stableVersion;
+  previewVersion = "2.2.0a1";
   addVersion = args:
     let version = if args.stable then stableVersion else previewVersion;
         branch = if args.stable then "stable" else "preview";
@@ -19,7 +18,7 @@ in {
   };
   guiPreview = mkGui {
     stable = false;
-    sha256Hash = guiSrcHash;
+    sha256Hash = "16jjgfbdi7b3349wrqalf40qcaqzw3d4vdjbwcy8dbqblg48hn5w";
   };
 
   serverStable = mkServer {
@@ -28,6 +27,6 @@ in {
   };
   serverPreview = mkServer {
     stable = false;
-    sha256Hash = serverSrcHash;
+    sha256Hash = "0bcsjljy947grfn3y9xyi3dbzdw5wkljq1nr66cqfkidx9f4fzni";
   };
 }

pkgs/applications/networking/gns3/gui.nix

@@ -20,7 +20,7 @@ in pythonPackages.buildPythonPackage rec {
     raven psutil jsonschema # tox for check
     # Runtime dependencies
     sip (pyqt5.override { withWebSockets = true; })
-  ];
+  ] ++ stdenv.lib.optional (!stable) pythonPackages.distro;
 
   doCheck = false; # Failing
 

pkgs/applications/networking/gns3/server.nix

@@ -3,7 +3,7 @@
 { stdenv, python36, fetchFromGitHub }:
 
 let
-  python = python36.override {
+  python = if stable then python36.override {
     packageOverrides = self: super: {
       async-timeout = super.async-timeout.overridePythonAttrs (oldAttrs: rec {
         version = "2.0.1";
@@ -31,7 +31,7 @@ let
           ++ stdenv.lib.optional (pythonOlder "3.5") typing;
       });
     };
-  };
+  } else python36;
 
 in python.pkgs.buildPythonPackage {
   pname = "gns3-server";
@@ -48,7 +48,7 @@ in python.pkgs.buildPythonPackage {
     aiohttp-cors yarl aiohttp multidict
     jinja2 psutil zipstream raven jsonschema typing
     (python.pkgs.callPackage ../../../development/python-modules/prompt_toolkit/1.nix {})
-  ];
+  ] ++ stdenv.lib.optional (!stable) python.pkgs.distro;
 
   # Requires network access
   doCheck = false;