Refactor update assignment

Signed-off-by: Ivan Kanakarakis <[email protected]>

Author: c00kiemon5ter

src/cryptojwt/key_bundle.py

@@ -481,13 +481,18 @@ def update(self):
             self._keys = []
 
             try:
-                if self.local:
-                    if self.fileformat in ["jwks", "jwk"]:
-                        updated = self.do_local_jwk(self.source)
-                    elif self.fileformat == "der":
-                        updated = self.do_local_der(self.source, self.keytype, self.keyusage)
-                elif self.remote:
-                    updated = self.do_remote()
+                updated = (
+                    self.do_remote()
+                    if self.remote
+
+                    else self.do_local_jwk(self.source)
+                    if self.local and self.fileformat in ["jwks", "jwk"]
+
+                    else self.do_local_der(self.source, self.keytype, self.keyusage)
+                    if self.local and self.fileformat in ["der"]
+
+                    else False
+                )
             except Exception as err:
                 LOGGER.error("Key bundle update failed: %s", err)
                 self._keys = _old_keys  # restore