[PATCH 3 of 7 bm-refactor V2] bookmarks: factor out adding a list of bookmarks from commands

[Sean Farley]

# HG changeset patch
# User Sean Farley <sean at farley.io>
# Date 1497997120 25200
#      Tue Jun 20 15:18:40 2017 -0700
# Branch bm-refactor
# Node ID 03933080a047f8438b1e400b513a7909779382a8
# Parent  50f0aad403c1c79e5c6fff4788c215eceac18118
bookmarks: factor out adding a list of bookmarks from commands

While we're here, let's use fancy context managers. I believe this
should still work since our locks are re-entrant.

diff --git a/mercurial/bookmarks.py b/mercurial/bookmarks.py
index f0b9f5f..d1bac53 100644
--- a/mercurial/bookmarks.py
+++ b/mercurial/bookmarks.py
@@ -726,5 +726,37 @@ def rename(repo, tr, old, new, force=Fal
     marks[mark] = marks[old]
     if repo._activebookmark == old and not inactive:
         activate(repo, mark)
     del marks[old]
     marks.recordchange(tr)
+
+def addbookmarks(repo, tr, names, rev=None, force=False, inactive=False):
+    """add a list of bookmarks
+
+    If force is specified, then the new name can overwrite an existing
+    bookmark.
+
+    If inactive is specified, then do not activate any bookmark. Otherwise, the
+    first bookmark is activated.
+
+    Raises an abort error if old is not in the bookmark store.
+    """
+    marks = repo._bookmarks
+    cur = repo.changectx('.').node()
+    newact = None
+    for mark in names:
+        mark = checkformat(repo, mark)
+        if newact is None:
+            newact = mark
+        if inactive and mark == repo._activebookmark:
+            deactivate(repo)
+            return
+        tgt = cur
+        if rev:
+            tgt = scmutil.revsingle(repo, rev).node()
+        marks.checkconflict(mark, force, tgt)
+        marks[mark] = tgt
+    if not inactive and cur == marks[newact] and not rev:
+        activate(repo, newact)
+    elif cur != tgt and newact == repo._activebookmark:
+        deactivate(repo)
+    marks.recordchange(tr)
diff --git a/mercurial/commands.py b/mercurial/commands.py
index e882567..9d4088b 100644
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -983,27 +983,11 @@ def bookmark(ui, repo, *names, **opts):
                 elif len(names) > 1:
                     raise error.Abort(_("only one new bookmark name allowed"))
                 bookmarks.rename(repo, tr, rename, names[0], force, inactive)
             elif names:
                 tr = repo.transaction('bookmark')
-                newact = None
-                for mark in names:
-                    mark = bookmarks.checkformat(repo, mark)
-                    if newact is None:
-                        newact = mark
-                    if inactive and mark == repo._activebookmark:
-                        bookmarks.deactivate(repo)
-                        return
-                    tgt = cur
-                    if rev:
-                        tgt = scmutil.revsingle(repo, rev).node()
-                    marks.checkconflict(mark, force, tgt)
-                    marks[mark] = tgt
-                if not inactive and cur == marks[newact] and not rev:
-                    bookmarks.activate(repo, newact)
-                elif cur != tgt and newact == repo._activebookmark:
-                    bookmarks.deactivate(repo)
+                bookmarks.addbookmarks(repo, tr, names, rev, force, inactive)
             elif inactive:
                 if len(marks) == 0:
                     ui.status(_("no bookmarks set\n"))
                 elif not repo._activebookmark:
                     ui.status(_("no active bookmark\n"))