changeset 35270:f392066d127c

bookmark: add pushkey hook compatiblity to the bundle2 part

Currently, pushing a bookmark update triggers a pushkey hooks. It is likely
that users in the wild use such hooks to control bookmark movement. Using a non
push-key mechanism to exchange bookmark means these hooks are no longer called,
possibly breaking existing users setup. So we add explicit call to the pushkey
hooks in the handling of the bundle2 part. This behavior can be disabled with a
new config knob: 'server.bookmarks-pushkey-compat'.

--- a/mercurial/bundle2.py	Sun Oct 15 18:02:11 2017 +0200
+++ b/mercurial/bundle2.py	Tue Oct 17 12:07:24 2017 +0200
@@ -1989,7 +1989,31 @@
     for pull.
     """
     changes = bookmarks.binarydecode(inpart)
-    op.repo._bookmarks.applychanges(op.repo, op.gettransaction(), changes)
+
+    tr = op.gettransaction()
+    bookstore = op.repo._bookmarks
+
+    pushkeycompat = op.repo.ui.configbool('server', 'bookmarks-pushkey-compat')
+    if pushkeycompat:
+        allhooks = []
+        for book, node in changes:
+            hookargs = tr.hookargs.copy()
+            hookargs['pushkeycompat'] = '1'
+            hookargs['namespace'] = 'bookmark'
+            hookargs['key'] = book
+            hookargs['old'] = nodemod.hex(bookstore.get(book, ''))
+            hookargs['new'] = nodemod.hex(node if node is not None else '')
+            allhooks.append(hookargs)
+        for hookargs in allhooks:
+            op.repo.hook('prepushkey', throw=True, **hookargs)
+
+    bookstore.applychanges(op.repo, tr, changes)
+
+    if pushkeycompat:
+        def runhook():
+            for hookargs in allhooks:
+                op.repo.hook('prepushkey', **hookargs)
+        op.repo._afterlock(runhook)
 
 @parthandler('phase-heads')
 def handlephases(op, inpart):

--- a/mercurial/configitems.py	Sun Oct 15 18:02:11 2017 +0200
+++ b/mercurial/configitems.py	Tue Oct 17 12:07:24 2017 +0200
@@ -841,6 +841,9 @@
 coreconfigitem('push', 'pushvars.server',
     default=False,
 )
+coreconfigitem('server', 'bookmarks-pushkey-compat',
+    default=True,
+)
 coreconfigitem('server', 'bundle1',
     default=True,
 )

--- a/mercurial/help/config.txt	Sun Oct 15 18:02:11 2017 +0200
+++ b/mercurial/help/config.txt	Tue Oct 17 12:07:24 2017 +0200
@@ -1723,6 +1723,14 @@
 
 Controls generic server settings.
 
+``bookmarks-pushkey-compat``
+    Trigger pushkey hook when being pushed bookmark updates. This config exist
+    for compatibility purpose (default to True)
+
+    If you use ``pushkey`` and ``pre-pushkey`` hooks to control bookmark
+    movement we recommend you migrate them to ``txnclose-bookmark`` and
+    ``pretxnclose-bookmark``.
+
 ``compressionengines``
     List of compression engines and their relative priority to advertise
     to clients.