modify interactive mode load behavior

The "load" command no longer appends to the existing script. The user
is prompted if they want to overwrite the existing file if the script is
not empty.

diff --git a/interactive.cxx b/interactive.cxx
index 9bfe498f4b5e65d5f2c6c2cd97b514814041d84b..3a9a19d559dff26ade482b4817b3aa33220a796f 100644 (file)
--- a/interactive.cxx
+++ b/interactive.cxx
@@ -660,6 +660,14 @@ public:
        return false;
       }
 
+    if (!script_vec.empty())
+      {
+        if (query("Script exists. Overwrite existing script? ", no_default))
+          script_vec.clear();
+        else
+          return false;
+      }
+
     // Originally, we called stap's parser here to read in the
     // script. However, doing so discards comments, preprocessor
     // directives, and rearranges the script. So, let's just read the