Re: [PATCH] Improve signer name error in `mml-secure-epg-sign'.

[Karl Fogel <kfogel@red-bean.com>]

Committed (06cb8350c69d).  If anyone knows ways to further improve the error message, please go for it.

Best regards,
-Karl

> I hope someone with more expertise in this code can review and
> possibly improve this patch.
> 
> Recently I got this error message when trying to send a GPG-signed
> message:
> 
>   "Couldn't find any signer names.  Perhaps `mml-secure-smime-sign-with-sender' should be set?"
> 
> However, `mml-secure-smime-sign-with-sender' was already set to t (the
> actual problem lies elsewhere and I'm still debugging it).  Since
> Emacs can know that `mml-secure-smime-sign-with-sender' is set,
> there's no reason for the error message to send the user down the
> wrong road.  The attached patch conditionalizes the error message
> accordingly.
> 
> I believe this patch could be improved by offering the user more
> advice if a signer cannot be found.  For example, maybe the user
> should look at setting `mm-sign-option' to `guided'?  However, I am
> not an expert in this; my setup (with
> `mml-secure-smime-sign-with-sender' set to t) had been working fine
> for years and then suddenly broke, so I'm now debugging.  It's just
> that near the beginning of my debugging, Emacs presented me with a
> misleading error message -- hence this patch, so others can at least
> avoid that false start.  Further suggestions or improvements welcome.