Re: indent with emacs batch mode

[Alex Kost]

Ricardo Wurmus (2017-01-07 08:25 +0100) wrote:

> Alex Kost wrote:
>
>> All that stuff can work without 'emacs-guix' (if the line with
>> 'guix-devel-mode' scheme hook will be removed), but in this case the
>> package may not be indented properly.
>
> Guix still comes with a “.dir-locals.el” that specifies the indentation
> rules, doesn’t it?  Can we use that?

Oof, it took me some time to figure it out :-)

So here is the version that requires only emacs and ".dir-locals.el"
file from the git repo:

indent-package-expr.el
Description: application/emacs-lisp

Emacs can be run like this:

  emacs -Q --batch -l indent-package-expr.el package-file.scm package-name

The only downside of ".dir-locals.el", is that it doesn't contain
indentation rules for 'modify-phases' keywords (replace, add-after,
add-before).  Maybe they should be added there, but OTOH "replace" looks
like a too general name, so if a user has some code with "replace"
procedure, (s)he wouldn't be pleased when it will be indented strangely.
That's why "guix-devel.el" has a code that indents these keywords only
when they are inside 'modify-phases'.

-- 
Alex