Updated ensime bindings to better fit with spacemacs

[bjarkevad]

I've updated the bindings for ensime so they fit a bit better with spacemacs, but rather than following spacemacs convetions I've pretty much just translated ensime's default bindings from C-c C-{X} something to spc m {X} something.
I'm not sure if this is the best idea, but it makes switching from normal emacs + ensime to spacemacs + ensime easier.

[chrisbarrett]

I like this. +1

[syl20bnr]

It is not in the conventions for now but the refactoring is planned to be on SPC m R instead of SPC m r.

[syl20bnr]

I will wait a bit before merging it because I have to read the doc of each command and maybe play a bit with them in order to make them match with what we have in the other layers.

Each new added tool is a great opportunity to discover new commands so this PR has a lot of value. Thank you !

[bjarkevad]

Thanks for the feedback!
As a sidenote, when I was reading the ensime docs I noticed that a lot of times only the keybinding was refered to, so it was hard to translate ensime bindings to spacemacs-convention bindings without making ensime docs hard to follow.

[bjarkevad]

I've added a new function which generates an .ensime and reloads ensime, which is useful when the project changes. Sometimes it's also necessary to rm -r .ensime_cache in the project root to force ensime to notice changes to e.g. dependencies.

[syl20bnr]

Excellent PR ! 👍 ❤️
I adapted it to the conventions in this commit: 4be4abc

Cherry-picked into develop.

[syl20bnr]

@bjarkevad, forgot to mention that I decided to put refactoring bindings under mr instead of mR since it does not make sense to use R which is harder to press.
I originally planned to put them under mR because ruby already uses mr for RoR bindings, but it makes little sense to shift all refactoring bindings on mR just for ruby.

CC @bru We have 2 solutions:

1. move RoR bindings to another key that is easy to press with m (could be mn, mm etc...) but not mnemonic
2. make an exception with ruby and put refactoring on mR

I would go with 1) to keep consistency with mr everywhere.

[bru]

Considered the fact that currently the ruby layer has 1 refactor command vs
a few dozen Rails commands, I would yield precedence to the latter.
That said, 'mm' could be a better prefix given: 1. the (very high)
frequency we need code navigation commands and 2. the fact the ',' shortcut
still doesn't work in all modes (so I end up always using the long form)
On Feb 18, 2015 2:41 PM, "Sylvain Benner" notifications@github.com wrote:

@bjarkevad https://github.com/bjarkevad, forgot to mention that I
decided to put refactoring bindings under mr instead of mR since it does
not make sense to use R which is harder to press.
I originally planned to put them under mR because ruby already uses mr
for RoR bindings, but it makes little sense to shift all refactoring
bindings on mR just for ruby.

CC @bru https://github.com/bru We have 2 solutions:

1. move RoR bindings to another key that is easy to press with m (could be
   mn, mm etc...) but not mnemonic
2. make an exception with ruby and put refactoring on mR

I would go with 1) to keep consistency with mr everywhere.

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#600 (comment).

[syl20bnr]

, should work whenever there is SPC m for the current mode, if not it is a big bug :-(
Do you have examples where there are SPC m bindings available and , does not work ?

[bru]

Essentially any view in a rails project.
I thought that was happening because a views's major mode is HTML/web, but
the long form (SPC m ...) still works, so I'm a bit puzzled. Happy to help
you debugging this, of course.
On Feb 18, 2015 7:07 PM, "Sylvain Benner" notifications@github.com wrote:

, should work whenever there is SPC m for the current mode, if not it is
a big bug :-(
Do you have examples where there are available SPC m bindings available
and , does not work ?

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#600 (comment).

[syl20bnr]

I never thought about this... this is a big limitation, SPC m is major-mode dependent. This is really bad :-(

Extending evil-leader to minor-modes can be useful then but we have to be extra-careful about using it.
What rule do you have to enable rails command as a minor mode in the views ?