[PATCH] mail: don't complain about a multi-word email.method config value

[Yuya Nishihara]

On Mon, 2 Dec 2019 11:52:53 +0100, Julien Cristau wrote:
> On Sat, Nov 30, 2019 at 01:40:53PM +0900, Yuya Nishihara wrote:
> > On Fri, 29 Nov 2019 19:20:50 +0100, Julien Cristau wrote:
> > > # HG changeset patch
> > > # User Julien Cristau <jcristau at debian.org>
> > > # Date 1575051591 -3600
> > > #      Fri Nov 29 19:19:51 2019 +0100
> > > # Node ID e962071e8bee30af8b3432e61b7f04acabbde0db
> > > # Parent  640bae94f2f31b1c1325ad2e5cf7f4a5a9dbebdd
> > > mail: don't complain about a multi-word email.method config value
> > > 
> > > I want to be able to set email.method to "ssh relay /usr/sbin/sendmail"
> > > without needing an extra trivial shell script.
> > > This works fine since we pass the full command to a shell, except for
> > > validateconfig trying to find it in $PATH.
> > > 
> > > diff --git a/mercurial/mail.py b/mercurial/mail.py
> > > --- a/mercurial/mail.py
> > > +++ b/mercurial/mail.py
> > > @@ -241,17 +241,18 @@ def validateconfig(ui):
> > >          if not ui.config(b'smtp', b'host'):
> > >              raise error.Abort(
> > >                  _(
> > >                      b'smtp specified as email transport, '
> > >                      b'but no smtp host configured'
> > >                  )
> > >              )
> > >      else:
> > > -        if not procutil.findexe(method):
> > > +        program = method.split(None, 1)[0]
> > 
> > b''.split() will return an empty list, and it's probably better to use
> > procutil.shellsplit().
> > 
> I did consider that, OTOH _sendmail already does the .split(None, 1)[0],
> so I followed that pattern.  I guess I can change that one too...

Good catch. I prefer fixing it, too.