transplant: change "editform" to distinguish merge commits from others

"editform" argument for "getcommiteditor" is decided according to the
format below:

  EXTENSION[.COMMAND][.ROUTE]

  - EXTENSION: name of extension
  - COMMAND: name of command, if there are two or more commands in EXTENSION
  - ROUTE: name of route, if there are two or more routes in COMMAND

This patch newly adds "normal" and "merge" as ROUTE, to distinguish
merge commits from other.

This patch adds 4 test patterns to test combination of "merge"(x2) and
"--continue"(x2).

hgext/transplant.py

@@ -86,7 +86,10 b' class transplanter(object):'
         self.opener = scmutil.opener(self.path)
         self.transplants = transplants(self.path, 'transplants',
                                        opener=self.opener)
-        self.editor = cmdutil.getcommiteditor(editform='transplant', **opts)
+        def getcommiteditor():
+            editform = cmdutil.mergeeditform(repo[None], 'transplant')
+            return cmdutil.getcommiteditor(editform=editform, **opts)
+        self.getcommiteditor = getcommiteditor
 
     def applied(self, repo, node, parent):
         '''returns True if a node is already an ancestor of parent
@@ -286,7 +289,7 b' class transplanter(object):'
             m = match.exact(repo.root, '', files)
 
         n = repo.commit(message, user, date, extra=extra, match=m,
-                        editor=self.editor)
+                        editor=self.getcommiteditor())
         if not n:
             self.ui.warn(_('skipping emptied changeset %s\n') % short(node))
             return None
@@ -342,7 +345,7 b' class transplanter(object):'
             if merge:
                 repo.setparents(p1, parents[1])
             n = repo.commit(message, user, date, extra=extra,
-                            editor=self.editor)
+                            editor=self.getcommiteditor())
             if not n:
                 raise util.Abort(_('commit failed'))
             if not merge:

mercurial/help/config.txt

@@ -417,7 +417,8 b' messages for each actions.'
 - ``changeset.shelve.shelve`` for :hg:`shelve`
 - ``changeset.tag.add`` for :hg:`tag` without ``--remove``
 - ``changeset.tag.remove`` for :hg:`tag --remove`
-- ``changeset.transplant`` for :hg:`transplant`
+- ``changeset.transplant.merge`` for :hg:`transplant` on merges
+- ``changeset.transplant.normal`` for :hg:`transplant` on other
 
 These dot-separated lists of names are treated as hierarchical ones.
 For example, ``changeset.tag.remove`` customizes the commit message

tests/test-transplant.t

@@ -95,8 +95,13 b" clone so subsequent rollback isn't affec"
   $ hg ci -qm "b4"
   $ hg status --rev "7^1" --rev 7
   A b3
-  $ HGEDITOR=cat hg transplant --edit 7
+  $ cat > $TESTTMP/checkeditform.sh <<EOF
+  > env | grep HGEDITFORM
+  > true
+  > EOF
+  $ HGEDITOR="sh $TESTTMP/checkeditform.sh; cat" hg transplant --edit 7
   applying ffd6818a3975
+  HGEDITFORM=transplant.normal
   b3
   
   
@@ -373,7 +378,8 b" transplant -c shouldn't use an old chang"
   patch failed to apply
   abort: fix up the merge and run hg transplant --continue
   [255]
-  $ hg transplant --continue
+  $ HGEDITOR="sh $TESTTMP/checkeditform.sh" hg transplant --continue -e
+  HGEDITFORM=transplant.normal
   46ae92138f3c transplanted as 9159dada197d
   $ hg transplant 1:3
   skipping already applied revision 1:46ae92138f3c
@@ -430,9 +436,30 b' Issue1111: Test transplant --merge'
 
 transplant
 
-  $ hg transplant -m 1
+  $ HGEDITOR="sh $TESTTMP/checkeditform.sh" hg transplant -m 1 -e
   applying 42dc4432fd35
+  HGEDITFORM=transplant.merge
   1:42dc4432fd35 merged at a9f4acbac129
+  $ hg update -q -C 2
+  $ cat > a <<EOF
+  > x
+  > y
+  > z
+  > EOF
+  $ hg commit -m replace
+  $ hg update -q -C 4
+  $ hg transplant -m 5
+  applying 600a3cdcb41d
+  patching file a
+  Hunk #1 FAILED at 0
+  1 out of 1 hunks FAILED -- saving rejects to file a.rej
+  patch failed to apply
+  abort: fix up the merge and run hg transplant --continue
+  [255]
+  $ HGEDITOR="sh $TESTTMP/checkeditform.sh" hg transplant --continue -e
+  HGEDITFORM=transplant.merge
+  600a3cdcb41d transplanted as a3f88be652e0
+
   $ cd ..
 
 test transplant into empty repository