log: pass getcopies() function instead of getrenamed() to displayer (API)

This reduces the duplication between the two displayer functions (and
between them and scmutil.getcopiesfn()). It's still more code than two
patches ago, but there's less duplication.

Differential Revision: https://phab.mercurial-scm.org/D6546

mercurial/commands.py

@@ -3887,12 +3887,12 b' def log(ui, repo, *pats, **opts):'
         # then filter the result by logcmdutil._makerevset() and --limit
         revs, differ = logcmdutil.getlinerangerevs(repo, revs, opts)
 
-    getrenamed = None
+    getcopies = None
     if opts.get('copies'):
         endrev = None
         if revs:
             endrev = revs.max() + 1
-        getrenamed = scmutil.getrenamedfn(repo, endrev=endrev)
+        getcopies = scmutil.getcopiesfn(repo, endrev=endrev)
 
     ui.pager('log')
     displayer = logcmdutil.changesetdisplayer(ui, repo, opts, differ,
@@ -3901,7 +3901,7 b' def log(ui, repo, *pats, **opts):'
         displayfn = logcmdutil.displaygraphrevs
     else:
         displayfn = logcmdutil.displayrevs
-    displayfn(ui, repo, revs, displayer, getrenamed)
+    displayfn(ui, repo, revs, displayer, getcopies)
 
 @command('manifest',
     [('r', 'rev', '', _('revision to display'), _('REV')),

mercurial/logcmdutil.py

@@ -862,7 +862,7 b' def _graphnodeformatter(ui, displayer):'
         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 b' def displaygraph(ui, repo, dag, displaye'
 
     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 b' def displaygraphrevs(ui, repo, revs, dis'
     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()