Ok so I think I finally found a way to do what I was looking for.
I added these lines in the dotspacemacs/user-config block in my ~/.spacemacs config:
(define-key evil-motion-state-map (kbd "S-<up>") 'evil-scroll-page-up)
(define-key evil-motion-state-map (kbd "S-<down>") 'evil-scroll-page-down)
Not sure if that’s the recommended way but it seems to work
Alchemist v1.8.0 is out
Enhancements
See Alchemist-Hex in action here: Release Alchemist v1.8.0 · tonini/alchemist.el · GitHub
If you are -like me- having trouble installing the latest Emacs 24.5 on Ubuntu 14.04 the following script comes in quite handy:
Couple of questions.
Is there something like StyleCop available to enforce Elixer style like for example this one?
Is it possible to autocorrect or apply the style to your code like proper indentation, use of parenthesis for functions etc. (as prescribed in the style) like for example:
# not preferred
def some_function arg1, arg2 do
# body omitted
end
to:
# preferred
def some_function(arg1, arg2) do
# body omitted
end
Is it possible to “desugar” code like for example:
[ name : "J. Doe" ]
to:
[ { :name, "J. Doe" } ]
Or remove shorthand like:
add_one = &(&1 + 1)
to:
add_one = fn (n) -> n + 1 end
I like Credo and I use it in some of my projects. That said, I don’t think alchemist should include support for credo, except for being able to enter a mix command and display the output in a buffer—which alchemist is already capable of doing. The reason behind my thinking: While I think Credo is good I could imagine other style checker libraries coming out that I might prefer in the future for any reason.
But—this is Emacs. We can customise it to our hearts content! This doesn’t need to be part of Alchemist. We can use some of the stuff in alchemist to shoehorn credo integration into our Alchemist installation. I got the following in my Emacs configuration where I configure my Elixir environment:
(defun mg/alchemist-run-credo-on-project ()
"Run credo on project"
(interactive)
(alchemist-mix-execute "credo"))
(define-key alchemist-mode-keymap (kbd "p c") 'mg/alchemist-run-credo-on-project)
I define a «run credo» function and bind it to the alchemist keybinding; which means that credo is run when i hit C-c a p c (I use vanilla Emacs)
The most important parts of Spacemacs run okay when I use PuTTY except some of the coloring and special characters.
Any idea on how to get this working?
Having that ugly colors is typical for emacs in a terminal. It can get even worse than what you showed us, if you activate whitespace-mode.
But I haven’t seen that black on black until now…
And the special characters is a typical problem when having unicode in a windows terminal. It just doesn’t work, because windows has a different encoding there. Perhaps you can check if putty allows some conversion?
Protip: SPC m (major mode) is always mapped to ,, so for example SPC m e r => , e r. 50x less keystrokes 
