diff -r 88ba0ff94605 -r a68350a7fc55 mercurial/logcmdutil.py
--- a/mercurial/logcmdutil.py	Wed Jun 19 09:59:45 2019 -0700
+++ b/mercurial/logcmdutil.py	Wed Jun 19 10:19:32 2019 -0700
@@ -862,7 +862,7 @@
         return templ.renderdefault(props)
     return formatnode
 
-def displaygraph(ui, repo, dag, displayer, edgefn, getrenamed=None, props=None):
+def displaygraph(ui, repo, dag, displayer, edgefn, getcopies=None, props=None):
     props = props or {}
     formatnode = _graphnodeformatter(ui, displayer)
     state = graphmod.asciistate()
@@ -890,13 +890,7 @@
 
     for rev, type, ctx, parents in dag:
         char = formatnode(repo, ctx)
-        copies = None
-        if getrenamed:
-            copies = []
-            for fn in ctx.files():
-                rename = getrenamed(fn, ctx.rev())
-                if rename:
-                    copies.append((fn, rename))
+        copies = getcopies(ctx) if getcopies else None
         edges = edgefn(type, char, state, rev, parents)
         firstedge = next(edges)
         width = firstedge[2]
@@ -915,16 +909,10 @@
     revdag = graphmod.dagwalker(repo, revs)
     displaygraph(ui, repo, revdag, displayer, graphmod.asciiedges, getrenamed)
 
-def displayrevs(ui, repo, revs, displayer, getrenamed):
+def displayrevs(ui, repo, revs, displayer, getcopies):
     for rev in revs:
         ctx = repo[rev]
-        copies = None
-        if getrenamed is not None:
-            copies = []
-            for fn in ctx.files():
-                rename = getrenamed(fn, rev)
-                if rename:
-                    copies.append((fn, rename))
+        copies = getcopies(ctx) if getcopies else None
         displayer.show(ctx, copies=copies)
         displayer.flush(ctx)
     displayer.close()