diff -r 23c232a81fbe -r 6c3c7a18f079 hgext/evolution.py
--- a/hgext/evolution.py	Tue Oct 11 19:22:41 2011 +0200
+++ b/hgext/evolution.py	Tue Oct 11 19:22:57 2011 +0200
@@ -78,9 +78,19 @@
             if path in headmf:
                 return head.filectx(path)
             raise IOError()
+        if commitopts.get('message') and commitopts.get('logfile'):
+            raise util.Abort(_('options --message and --logfile are mutually'
+                               ' exclusive'))
+        if commitopts.get('logfile'):
+            message= open(commitopts['logfile']).read()
+        elif commitopts.get('message'):
+            message = commitopts['message']
+        else:
+            message = old.description()
+
         new = context.memctx(repo,
                              parents=newbases,
-                             text=commitopts.get('message') or old.description(),
+                             text=message,
                              files=files,
                              filectxfn=filectxfn,
                              user=commitopts.get('user') or None,
@@ -257,6 +267,8 @@
         # commit current changes as update
         # code copied from commands.commit to avoid noisy messages
         ciopts = dict(opts)
+        ciopts.pop('message', None)
+        ciopts.pop('logfile', None)
         ciopts['message'] = opts.get('note') or ('amends %s' % old.hex())
         e = cmdutil.commiteditor
         if ciopts.get('force_editor'):
@@ -272,7 +284,7 @@
         updatenodes = set(cl.nodesbetween(roots=[old.node()],
                                           heads=[head.node()])[0])
         updatenodes.remove(old.node())
-        if not updatenodes:
+        if not updatenodes and not (opts.get('message') or opts.get('logfile')):
             raise error.Abort(_('no updates found'))
         updates = [repo[n] for n in updatenodes]