# HG changeset patch
# User Durham Goode <durham@fb.com>
# Date 1502238338 25200
# Node ID 86ea201eaeb9c281d73c707f63c87f5af04fdfe6
# Parent  6626d12e7a853e70b5f5ed3049af080ec3132f44
repair: move manifest strip to a separate function

This moves manifest stripping to a separate function so implementations of the
manifest that don't support stripping can replace this function with a no-op.

I considered adding a strip api to the manifestlog, so other implementations
could make it a no-op there, but it seems like strip might be unique to the
revlog implementation, and therefore shouldn't be present on the generic api.

Differential Revision: https://phab.mercurial-scm.org/D292

diff -r 6626d12e7a85 -r 86ea201eaeb9 mercurial/repair.py
--- a/mercurial/repair.py	Tue Aug 08 17:25:38 2017 -0700
+++ b/mercurial/repair.py	Tue Aug 08 17:25:38 2017 -0700
@@ -178,16 +178,13 @@
         tmpbundlefile = _bundle(repo, savebases, saveheads, node, 'temp',
                                 compress=False, obsolescence=False)
 
-    mfst = repo.manifestlog._revlog
-
     try:
         with repo.transaction("strip") as tr:
             offset = len(tr.entries)
 
             tr.startgroup()
             cl.strip(striprev, tr)
-            mfst.strip(striprev, tr)
-            striptrees(repo, tr, striprev, files)
+            stripmanifest(repo, striprev, tr, files)
 
             for fn in files:
                 repo.file(fn).strip(striprev, tr)
@@ -314,6 +311,11 @@
         callback.topic = topic
     callback.addnodes(nodelist)
 
+def stripmanifest(repo, striprev, tr, files):
+    revlog = repo.manifestlog._revlog
+    revlog.strip(striprev, tr)
+    striptrees(repo, tr, striprev, files)
+
 def striptrees(repo, tr, striprev, files):
     if 'treemanifest' in repo.requirements: # safe but unnecessary
                                             # otherwise