uvms: support .desktop applications

pkgs/uvms/uvms.py

@@ -678,6 +678,9 @@ def main(args, args_next, cleanup, ps):
                                     "EXTRA_PATH": [
                                         f"{a}/bin" for a in app_paths
                                     ],  # noqa: E501
+                                    "EXTRA_XDG_DATA_DIRS": [
+                                        f"{a}/share" for a in app_paths
+                                    ],  # noqa: E501
                                 }
                             }
                         ).encode("utf8")

pkgs/uvmslib/uvmslib.py

@@ -55,6 +55,16 @@ class Processes:
                     "/run/current-system/sw/bin",
                 ],
             ),
+            "XDG_DATA_DIRS": ":".join(
+                [
+                    *os.environ.get("XDG_DATA_DIRS", "").split(":"),
+                    *run.get(
+                        "EXTRA_XDG_DATA_DIRS",
+                        [],
+                    ),
+                    "/run/current-system/sw/share",
+                ],
+            ),
         }
         proc = None
         try:
@@ -116,6 +126,7 @@ def guest_main():
                 # IDK why but I keep getting empty messages
                 if req == b"":
                     print(f"Lost [{con.fileno()}]")
+                    ps.sources = [s for s in ps.sources if s.fileno() != con.fileno()]
                     continue
                 try:
                     req = json.loads(req)

profiles/baseImage.nix

@@ -212,6 +212,7 @@ in
     };
 
     environment.profileRelativeSessionVariables.PATH = lib.mkForce [ "/bin\${PATH:+:}$PATH" ];
+    environment.profileRelativeSessionVariables.XDG_DATA_DIRS = lib.mkForce [ "/run/current-system/sw/share/\${XDG_DATA_DIRS:+:}$XDG_DATA_DIRS" ];
     environment.sessionVariables = env;
     environment.variables = env;
     systemd.globalEnvironment = env;