On Sun 2016-06-05 07:18:25 -0400, David Bremner wrote:
> Tomi Ollila <tomi.ollila@iki.fi> writes:
>
>> ... but I think I am not biased when I think that if ctrl-x ctrl-s
>> does something more magical than simple (save-buffer) in buffers that
>> looks like text editing buffer, that is going to be unexpected disturbing
>> functionality to someone (else like me)...
>
> This is a valid point. On the other hand the binding is copied from
> Gnus, which also includes at least _some_ magic
>
>       http://www.gnu.org/software/emacs/manual/html_node/gnus/Drafts.html

gnus isn't the only thing that does something more "magical" than saving
a raw buffer to a file.

try the following:

   echo test | gpg --output test.gpg --armor --default-recipient-self  --encrypt
   emacs test.gpg

emacs will prompt you to decrypt the file, then let you edit the
cleartext buffer.

a subsequent "C-x C-s" will re-save it encrypted.  (at least it does for
me!)

[ i note several weirdnesses here around the round-trip cleanliness and
  safety of this operation which aren't relevant to notmuch, but that's
  a different story, and i've reported them to emacs upstream ]

Of course, this functionality appears to also happen within
"save-buffer" itself -- so arguably it's not more "magical" than
save-buffer, since it *is* save-buffer.


Tomi, would you object if Mark's patches were somehow integrated into
save-buffer itself, instead of just re-mapping C-x C-s ?  (i don't know
elisp well enough to know how feasible that would be)

My bottom line:

Mark's series here works well for me, and represents the best draft
handling i've seen yet for notmuch-emacs.  It would be really good to
incorporate something approximating this functionality in the mainline.

        --dkg