# HG changeset patch
# User Sean Farley <sean@farley.io>
# Date 1498004300 25200
# Node ID 8299eb9b08c79699f496717d626842b72fa5ca4f
# Parent  f5f4c72de71acb1f386c5a5ecb4209864f02be84
bookmarks: factor method _printer out of for loop in printbookmarks

This allows even further customization via extensions for printing
bookmarks. For example, in hg-git this would allow printing remote refs
by just modifying the 'bmarks' parameter instead of reimplementing the
old commands.bookmarks method.

Furthermore, there is another benefit: now multiple extensions can
chain their custom data to bookmark printing. Previously, an extension
could have conflicting bookmark output due to which loaded first and
overrode commands.bookmarks. Now they can all play nicely together.

diff -r f5f4c72de71a -r 8299eb9b08c7 mercurial/bookmarks.py
--- a/mercurial/bookmarks.py	Tue Jun 20 16:36:25 2017 -0700
+++ b/mercurial/bookmarks.py	Tue Jun 20 17:18:20 2017 -0700
@@ -765,16 +765,35 @@
         deactivate(repo)
     marks.recordchange(tr)
 
+def _printbookmarks(ui, repo, bmarks, **opts):
+    """private method to print bookmarks
+
+    Provides a way for extensions to control how bookmarks are printed (e.g.
+    prepend or postpend names)
+    """
+    fm = ui.formatter('bookmarks', opts)
+    hexfn = fm.hexfunc
+    if len(bmarks) == 0 and fm.isplain():
+        ui.status(_("no bookmarks set\n"))
+    for bmark, (n, prefix, label) in sorted(bmarks.iteritems()):
+        fm.startitem()
+        if not ui.quiet:
+            fm.plain(' %s ' % prefix, label=label)
+        fm.write('bookmark', '%s', bmark, label=label)
+        pad = " " * (25 - encoding.colwidth(bmark))
+        fm.condwrite(not ui.quiet, 'rev node', pad + ' %d:%s',
+                     repo.changelog.rev(n), hexfn(n), label=label)
+        fm.data(active=(activebookmarklabel in label))
+        fm.plain('\n')
+    fm.end()
+
 def printbookmarks(ui, repo, **opts):
     """print bookmarks to a formatter
 
     Provides a way for extensions to control how bookmarks are printed.
     """
-    fm = ui.formatter('bookmarks', opts)
-    hexfn = fm.hexfunc
     marks = repo._bookmarks
-    if len(marks) == 0 and fm.isplain():
-        ui.status(_("no bookmarks set\n"))
+    bmarks = {}
     for bmark, n in sorted(marks.iteritems()):
         active = repo._activebookmark
         if bmark == active:
@@ -782,13 +801,5 @@
         else:
             prefix, label = ' ', ''
 
-        fm.startitem()
-        if not ui.quiet:
-            fm.plain(' %s ' % prefix, label=label)
-        fm.write('bookmark', '%s', bmark, label=label)
-        pad = " " * (25 - encoding.colwidth(bmark))
-        fm.condwrite(not ui.quiet, 'rev node', pad + ' %d:%s',
-                     repo.changelog.rev(n), hexfn(n), label=label)
-        fm.data(active=(bmark == active))
-        fm.plain('\n')
-    fm.end()
+        bmarks[bmark] = (n, prefix, label)
+    _printbookmarks(ui, repo, bmarks, **opts)