Extensions on a master page

[barrymol]

If I have an external script file included as part of an extension that is on a master page,
when the publish occurs, will the external file (which is in the same sub-directory each time
a new page is processed) be re-uploaded? Not that big a deal for a small project, but
if the extension is put on a large number of pages, it could result in more publish time.

[Pablo]

It will be uploaded only once each time you publish. It will not be uploaded multiple times during the same publish session.