commands: add ui.statuscopies config knob

statuscopies enables viewing of copies and moves in 'hg status' by default.

mercurial/commands.py

@@ -5845,7 +5845,8 b' def status(ui, repo, *pats, **opts):'
                        opts.get('subrepos'))
     changestates = zip(states, 'MAR!?IC', stat)
 
-    if (opts.get('all') or opts.get('copies')) and not opts.get('no_status'):
+    if (opts.get('all') or opts.get('copies')
+        or ui.configbool('ui', 'statuscopies')) and not opts.get('no_status'):
         copy = copies.pathcopies(repo[node1], repo[node2])
 
     fm = ui.formatter('status', opts)

mercurial/help/config.txt

@@ -1432,6 +1432,9 b' User interface controls.'
     backslash character (``\``)).
     Default is False.
 
+``statuscopies``
+    Display copies in the status command.
+
 ``ssh``
     command to use for SSH connections. Default is ``ssh``.
 

mercurial/ui.py

@@ -158,7 +158,7 b' class ui(object):'
 
         if self.plain():
             for k in ('debug', 'fallbackencoding', 'quiet', 'slash',
-                      'logtemplate', 'style',
+                      'logtemplate', 'statuscopies', 'style',
                       'traceback', 'verbose'):
                 if k in cfg['ui']:
                     del cfg['ui'][k]

tests/test-status.t

@@ -438,6 +438,15 b' without force'
     b
   R b
 
+using ui.statuscopies setting
+  $ hg st --config ui.statuscopies=true
+  M a
+    b
+  R b
+  $ hg st --config ui.statuscopies=false
+  M a
+  R b
+
 Other "bug" highlight, the revision status does not report the copy information.
 This is buggy behavior.