🚀 go-pugleaf

Boris 'Bromley' Goldowsky writes:
 > : crypt		  90-01-09
 > :      Kyle Jones, <kyle@wendy-fate.uu.net>
 > :      archive.cis.ohio-state.edu:/pub/gnu/emacs/elisp-archive/misc/crypt.el.Z
 > :      Handle crypt/compress/compact files.
 > 
 > Thanks, this works nicely, except I notice one odd thing:  when I visit a
 > compressed folder I get a file-mode-specification error momentarily (it is
 > then immediately overwritten by the "Uncompressing..." message)

Emacs is probably trying to parse the binary garbage as if it
were a -*-mode-*- specification, and of course is having
problems.  The find-file-hook kicks in after that and
uncompresses the file.

 > This is when I visit a file that is in VM-mode by virtue of my
 > auto-mode-alist, which ends with 
 >     (cons (concat "^" (expand-file-name "~/.*/mail")) 'vm-mode)
 > Other than that it seems to work fine, except that I end up looking at the
 > headers on the first message that are supposed to be invisible, so somehow
 > narrowing has not gotten done correctly for this first message.

This comes from running vm-mode from auto-mode-alist.  I believe
find-file-noselect or some subfunction undoes the narrowing, by
way of a save-restriction wrapped around calls to the
find-file-hooks.