[PATCH 3 of 4] pull: activate a bookmark matching with the destination of the update

[FUJIWARA Katsunori]

# HG changeset patch
# User FUJIWARA Katsunori <foozy at lares.dti.ne.jp>
# Date 1455738393 -32400
#      Thu Feb 18 04:46:33 2016 +0900
# Node ID b092aa9103651338b613e7d9255809bf2706f89b
# Parent  677cfb752ac33aff00ad51564acb44dcfd6724d8
pull: activate a bookmark matching with the destination of the update

Before this patch, "hg pull -u" doesn't activate a bookmark, which
matches with the explicit destination of the update: e.g. "--rev
BOOKMARK" or "URL#BOOKMARK".

diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -5566,6 +5566,10 @@ def postincoming(ui, repo, modheads, opt
                 pass # no-op update
             elif bookmarks.update(repo, [movemarkfrom], repo['.'].node()):
                 ui.status(_("updating bookmark %s\n") % repo._activebookmark)
+        elif brev in repo._bookmarks:
+            if brev != repo._activebookmark:
+                ui.status(_("(activating bookmark %s)\n") % brev)
+            bookmarks.activate(repo, brev)
         return ret
     if modheads > 1:
         currentbranchheads = len(repo.branchheads())
diff --git a/tests/test-pull-update.t b/tests/test-pull-update.t
--- a/tests/test-pull-update.t
+++ b/tests/test-pull-update.t
@@ -137,6 +137,69 @@ rollback just rewinds bookmark, which is
   $ hg bookmarks
    * active-before-pull        5:9ed4148f9a91
 
+(discard pulled chagnes)
+
+  $ hg update -q 20a3d5b6ab59
+  $ hg rollback -q
+
+  $ hg -R ../t bookmark -d active-before-pull
+
+Test that updating activates the bookmark, which matches with the
+explicit destination of the update.
+
+  $ hg -R ../t bookmark -r bar bookmark-on-bar-tip
+
+(1) activating by --rev BOOKMARK
+
+  $ hg bookmark -f active-before-pull
+  $ hg bookmarks
+   * active-before-pull        4:20a3d5b6ab59
+
+  $ hg pull -u -r bookmark-on-bar-tip
+  pulling from $TESTTMP/t (glob)
+  searching for changes
+  adding changesets
+  adding manifests
+  adding file changes
+  added 2 changesets with 2 changes to 1 files
+  adding remote bookmark bookmark-on-bar-tip
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  (activating bookmark bookmark-on-bar-tip)
+
+  $ hg parents -q
+  6:0c90a742bd4f
+  $ hg bookmarks
+     active-before-pull        4:20a3d5b6ab59
+   * bookmark-on-bar-tip       6:0c90a742bd4f
+
+(discard pulled changes)
+
+  $ hg update -q 20a3d5b6ab59
+  $ hg rollback -q
+
+(2) activating by URL#BOOKMARK
+
+  $ hg bookmark -f active-before-pull
+  $ hg bookmarks
+   * active-before-pull        4:20a3d5b6ab59
+
+  $ hg pull -u $TESTTMP/t#bookmark-on-bar-tip
+  pulling from $TESTTMP/t (glob)
+  searching for changes
+  adding changesets
+  adding manifests
+  adding file changes
+  added 2 changesets with 2 changes to 1 files
+  adding remote bookmark bookmark-on-bar-tip
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  (activating bookmark bookmark-on-bar-tip)
+
+  $ hg parents -q
+  6:0c90a742bd4f
+  $ hg bookmarks
+     active-before-pull        4:20a3d5b6ab59
+   * bookmark-on-bar-tip       6:0c90a742bd4f
+
 Test updating for multiple heads:
 
   $ hg -R ../t update -q 20a3d5b6ab59