bookmarks: name label for active bookmark correctly

Retain old label as well for backwards compatibility.

Today, the terms 'active' and 'current' are interchangeably used throughout the
codebase in reference to the active bookmark (the bookmark that will be updated
with the next commit). This leads to confusion among developers and users.
This patch is part of a series to standardize the usage to 'active' throughout
the mercurial codebase and user interface.

hgext/color.py

@@ -84,7 +84,7 b' effects may be overridden from your conf'
   resolve.unresolved = red bold
   resolve.resolved = green bold
 
-  bookmarks.current = green
+  bookmarks.active = green
 
   branches.active = none
   branches.closed = black bold
@@ -313,7 +313,7 b' except ImportError:'
            'grep.filename': 'magenta',
            'grep.user': 'magenta',
            'grep.date': 'magenta',
-           'bookmarks.current': 'green',
+           'bookmarks.active': 'green',
            'branches.active': 'none',
            'branches.closed': 'black bold',
            'branches.current': 'green',

mercurial/commands.py

@@ -40,6 +40,12 b" optionalrepo = ''"
 # @command decorator.
 inferrepo = ''
 
+# label constants
+# until 3.5, bookmarks.current was the advertised name, not
+# bookmarks.active, so we must use both to avoid breaking old
+# custom styles
+activebookmarklabel = 'bookmarks.active bookmarks.current'
+
 # common command options
 
 globalopts = [
@@ -1037,7 +1043,7 b' def bookmark(ui, repo, *names, **opts):'
         for bmark, n in sorted(marks.iteritems()):
             current = repo._activebookmark
             if bmark == current:
-                prefix, label = '*', 'bookmarks.current'
+                prefix, label = '*', activebookmarklabel
             else:
                 prefix, label = ' ', ''
 
@@ -5932,10 +5938,10 b' def summary(ui, repo, **opts):'
         ui.write(_('bookmarks:'), label='log.bookmark')
         if current is not None:
             if current in marks:
-                ui.write(' *' + current, label='bookmarks.current')
+                ui.write(' *' + current, label=activebookmarklabel)
                 marks.remove(current)
             else:
-                ui.write(' [%s]' % current, label='bookmarks.current')
+                ui.write(' [%s]' % current, label=activebookmarklabel)
         for m in marks:
             ui.write(' ' + m, label='log.bookmark')
         ui.write('\n', label='log.bookmark')