Changeset 1521 in tailor

Timestamp:

05/21/08 03:16:21 (5 years ago)

Author:

lele@…

Hash name:

20080521011621-97f81-e59b203d556b383dc956b1a44bf109f05e94a605

Message:

Tell the target about the changeset even before the source
The target has a chance of preexecuting some entries, or stopping the
process for whatever reason.

Location:

vcpx

Files:

• target.py (modified) (1 diff)
• dualwd.py (modified) (1 diff)

vcpx/target.py

@@ -97 +97 @@
             changelog = changeset.log
         return patchname, changelog
+
+    def _prepareToReplayChangeset(self, changeset):
+        """
+        This is called **before** fetching and applying the source
+        changeset. This implementation does nothing more than
+        returning True. Subclasses may override it, for example to
+        preexecute some entries such as moves.
+
+        Returning False the changeset won't be applied and the
+        process will stop.
+        """
+
+        return True
 
     def replayChangeset(self, changeset):

vcpx/dualwd.py

@@ -93 +93 @@
 
     def applyPendingChangesets(self, applyable=None, replay=None, applied=None):
+        def pre_replay(changeset):
+            if applyable and not applyable(changeset):
+                return
+            return self.target._prepareToReplayChangeset(changeset)
+
         return self.source.applyPendingChangesets(replay=self.replayChangeset,
-                                                  applyable=applyable,
+                                                  applyable=pre_replay,
                                                   applied=applied)