[PATCH 4 of 6 standalone-strip-long-version] strip: move the strip helper function for mq to strip

[pierre-yves.david at ens-lyon.org]

# HG changeset patch
# User Pierre-Yves David <pierre-yves.david at ens-lyon.org>
# Date 1380231780 -7200
#      Thu Sep 26 23:43:00 2013 +0200
# Node ID 52e9c06477ad06f33e8cd6b85757b3bc3759904c
# Parent  a4f5d3d0086b7481ad2de9dc785f4455b4298265
strip: move the strip helper function for mq to strip

The next patch finally move the command. No joke! (hey, this is for issue3824)

diff --git a/hgext/mq.py b/hgext/mq.py
--- a/hgext/mq.py
+++ b/hgext/mq.py
@@ -61,11 +61,11 @@ such as -f/--force or --exact are passed
 
 from mercurial.i18n import _
 from mercurial.node import bin, hex, short, nullid, nullrev
 from mercurial.lock import release
 from mercurial import commands, cmdutil, hg, scmutil, util, revset
-from mercurial import repair, extensions, error, phases, bookmarks
+from mercurial import extensions, error, phases, bookmarks
 from mercurial import patch as patchmod
 from mercurial import localrepo
 from mercurial import subrepo
 import os, re, errno, shutil
 
@@ -86,10 +86,11 @@ except KeyError:
     class dummyui(object):
         def debug(self, msg):
             pass
     stripext = extensions.load(dummyui(), 'strip', '')
 
+strip = stripext.strip
 checksubstate = stripext.checksubstate
 checklocalchanges = stripext.checklocalchanges
 
 
 # Patch names looks like unix-file names.
@@ -2909,29 +2910,10 @@ def save(ui, repo, **opts):
         del q.applied[:]
         q.applieddirty = True
         q.savedirty()
     return 0
 
-def strip(ui, repo, revs, update=True, backup="all", force=None):
-    wlock = lock = None
-    try:
-        wlock = repo.wlock()
-        lock = repo.lock()
-
-        if update:
-            checklocalchanges(repo, force=force)
-            urev, p2 = repo.changelog.parents(revs[0])
-            if p2 != nullid and p2 in [x.node for x in repo.mq.applied]:
-                urev = p2
-            hg.clean(repo, urev)
-            repo.dirstate.write()
-
-        repair.strip(ui, repo, revs, backup)
-    finally:
-        release(lock, wlock)
-
-
 @command("strip",
          [
           ('r', 'rev', [], _('strip specified revision (optional, '
                                'can specify revisions without this '
                                'option)'), _('REV')),
diff --git a/hgext/strip.py b/hgext/strip.py
--- a/hgext/strip.py
+++ b/hgext/strip.py
@@ -1,7 +1,10 @@
 from mercurial.i18n import _
-from mercurial import cmdutil, util
+from mercurial import cmdutil, hg, util
+from mercurial.node import nullid
+from mercurial.lock import release
+from mercurial import repair
 
 cmdtable = {}
 command = cmdutil.command(cmdtable)
 testedwith = 'internal'
 
@@ -32,5 +35,23 @@ def checklocalchanges(repo, force=False,
         if checksubstate(repo):
             _("local changed subrepos found") # i18n tool detection
             raise util.Abort(_("local changed subrepos found" + excsuffix))
     return m, a, r, d
 
+def strip(ui, repo, revs, update=True, backup="all", force=None):
+    wlock = lock = None
+    try:
+        wlock = repo.wlock()
+        lock = repo.lock()
+
+        if update:
+            checklocalchanges(repo, force=force)
+            urev, p2 = repo.changelog.parents(revs[0])
+            if p2 != nullid and p2 in [x.node for x in repo.mq.applied]:
+                urev = p2
+            hg.clean(repo, urev)
+            repo.dirstate.write()
+
+        repair.strip(ui, repo, revs, backup)
+    finally:
+        release(lock, wlock)
+