[PATCH evolve-ext-V4] evolve: extract logic to new method _evolvemerge

Shusen LIU liushusen at fb.com
Tue Jan 19 20:04:09 UTC 2016


# HG changeset patch
# User Shusen LIU <liushusen at fb.com>
# Date 1453233597 28800
#      Tue Jan 19 11:59:57 2016 -0800
# Node ID 610ee0a709186c3f42a2c6f13669f87f5236c87d
# Parent  91e67ad4cb6c783fa1a32e03359aa6d73c765129
evolve: extract logic to new method _evolvemerge

This patch introduces a new method _evolvemerge to merge orig to dest in
relocate method.
This simplifies the code of the method relocate and allows us to re-use it
later to support a continued keywork to implement evolve state.

diff --git a/hgext/evolve.py b/hgext/evolve.py
--- a/hgext/evolve.py
+++ b/hgext/evolve.py
@@ -949,26 +949,7 @@
     tr = repo.transaction('relocate')
     try:
         try:
-            if repo['.'].rev() != dest.rev():
-                merge.update(repo, dest, False, True, False)
-            if bmactive(repo):
-                repo.ui.status(_("(leaving bookmark %s)\n") % bmactive(repo))
-            bmdeactivate(repo)
-            if keepbranch:
-                repo.dirstate.setbranch(orig.branch())
-
-            try:
-                r = merge.graft(repo, orig, pctx, ['local', 'graft'], True)
-            except TypeError:
-                # not using recent enough mercurial
-                if len(orig.parents()) == 2:
-                    raise error.Abort(
-                        _("no support for evolving merge changesets yet"),
-                        hint=_("Redo the merge and use `hg prune <old> --succ "
-                               "<new>` to obsolete the old one"))
-
-                r = merge.graft(repo, orig, pctx, ['local', 'graft'])
-
+            r = _evolvemerge(repo, orig, dest, pctx, keepbranch)
             if r[-1]:  #some conflict
                 raise error.Abort(
                         'unresolved merge conflicts (see hg help resolve)')
@@ -3723,3 +3704,25 @@
         repo._bookmarks[book] = dest.node()
     if oldbookmarks or destbookmarks:
         repo._bookmarks.recordchange(tr)
+
+def _evolvemerge(repo, orig, dest, pctx, keepbranch):
+    if repo['.'].rev() != dest.rev():
+       merge.update(repo, dest, False, True, False)
+    if bmactive(repo):
+       repo.ui.status(_("(leaving bookmark %s)\n") % bmactive(repo))
+    bmdeactivate(repo)
+    if keepbranch:
+       repo.dirstate.setbranch(orig.branch())
+
+    try:
+       r = merge.graft(repo, orig, pctx, ['local', 'graft'], True)
+    except TypeError:
+       # not using recent enough mercurial
+       if len(orig.parents()) == 2:
+           raise error.Abort(
+               _("no support for evolving merge changesets yet"),
+               hint=_("Redo the merge and use `hg prune <old> --succ "
+                      "<new>` to obsolete the old one"))
+
+       r = merge.graft(repo, orig, pctx, ['local', 'graft'])
+    return r


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