remotefilelog: skip uploadblobs for public revs

Summary:
There is no need to upload content referred by a public commit.

This affects cases like `debugstrip` (ex. for testing `pull` performance with a
lagged commit graph). Without this change, the uploadrevs code path scans
stripped public commits without efficient tree prefetching, which results in
1-by-1 tree fetches and is unusably slow.

Reviewed By: xavierd

Differential Revision: D21630096

fbshipit-source-id: 385edf76cb4eb913b2d64422910cdb46b603e6c0

eden/scm/edenscm/hgext/remotefilelog/__init__.py

@@ -413,11 +413,10 @@ def reposetup(ui, repo):
         remotefilelogserver.onetimesetup(ui)
 
 
-def uploadblobs(repo, revs):
+def uploadblobs(repo, nodes):
     if repo.fileslog._ruststore:
         toupload = []
-        for r in revs:
-            ctx = repo[r]
+        for ctx in repo.set("%ln - public()", nodes):
             for f in ctx.files():
                 if f not in ctx:
                     continue