[PATCH DEFAULT] import: --no-commit should update .hg/last-message.txt

[steve at borho.org]

# HG changeset patch
# User Steve Borho <steve at borho.org>
# Date 1287695074 18000
# Branch stable
# Node ID ecdde03a377ec33dbc1f82f21b4ff0fe2de49d26
# Parent  db2ff771204daa1f5d2fd0a141b0263df17fe6fc
import: --no-commit should update .hg/last-message.txt

The patch parser goes through all of that trouble extracting the
commit message from the patch file.  It seems such a waste not to
use it.

diff -r db2ff771204d -r ecdde03a377e mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -2262,6 +2262,7 @@
     d = opts["base"]
     strip = opts["strip"]
     wlock = lock = None
+    msgs = []
 
     def tryone(ui, hunk):
         tmpname, message, user, date, branch, nodeid, p1, p2 = \
@@ -2312,7 +2313,10 @@
             finally:
                 files = cmdutil.updatedir(ui, repo, files,
                                           similarity=sim / 100.0)
-            if not opts.get('no_commit'):
+            if opts.get('no_commit'):
+                if message:
+                    msgs.append(message)
+            else:
                 if opts.get('exact'):
                     m = None
                 else:
@@ -2361,6 +2365,8 @@
             if not haspatch:
                 raise util.Abort(_('no diffs found'))
 
+        if msgs:
+            repo.opener('last-message.txt', 'wb').write('* * *\n'.join(msgs))
     finally:
         release(lock, wlock)