Add ability to pass eden clone args through fbclone

Summary:
This diff adds the ability to pass arbitrary arguments to the underlying 'eden clone' command when using `fbclone`

This provides a generic passthrough mechanism so users can specify any eden clone arguments without needing to mirror and thread each flag individually in `fbclone`

Differential Revision: D89435167

fbshipit-source-id: af75d287ae97518e9c96861c92cfca5b909de7fb

Author: genevievehelsel

eden/scm/lib/clone/src/lib.rs

@@ -205,6 +205,14 @@ pub fn eden_clone(
         }
     }
 
+    // Pass additional eden clone args from config if specified
+    if let Ok(Some(eden_clone_args)) = config.get_opt::<String>("edenfs", "eden-clone-args") {
+        // Split the args string and append to clone command
+        for arg in eden_clone_args.split_whitespace() {
+            clone_command.arg(arg);
+        }
+    }
+
     run_eden_clone_command(&mut clone_command).context("error performing eden clone")
 }