vagrant: add layer

contrib/vagrant/README.md

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+<!-- markdown-toc start - Don't edit this section. Run M-x markdown-toc/generate-toc again -->
+**Table of Contents**
+
+- [Vagrant contribution layer for Spacemacs](#vagrant-contribution-layer-for-spacemacs)
+    - [Description](#description)
+    - [Install](#install)
+        - [Layer](#layer)
+        - [Vagrant](#vagrant)
+        - [Testing](#testing)
+    - [Keybindings](#keybindings)
+
+<!-- markdown-toc end -->
+# Vagrant contribution layer for Spacemacs
+
+![vagrant](img/vagrant.png)
+
+## Description
+
+This layers adds support for working with Vagrant using
+[vagrant.el](https://github.com/ottbot/vagrant.el) and
+[vagrant-tramp](https://github.com/dougm/vagrant-tramp)
+
+Features:
+
+ - manage boxes (under the `SPC V` prefix)
+ - remote editing on Vagrant boxes via tramp
+
+## Install
+
+### Layer
+
+To use this contribution add it to your `~/.spacemacs`
+
+```elisp
+(setq-default dotspacemacs-configuration-layers '(vagrant))
+```
+
+### Vagrant
+
+Follow the
+[Installing Vagrant](http://docs.vagrantup.com/v2/installation/index.html)
+and
+[Getting Started](http://docs.vagrantup.com/v2/getting-started/index.html)
+guides in Vagrant's documentation.
+
+### Testing
+
+If you'd like to test this layer out in a simple way (for example to
+make sure you have Vagrant configured correctly) there is a
+[Vagrantfile](Vagrantfile) in this directory.
+
+## Keybindings
+
+Key Binding | Description
+------------|-----------------------------------------------------------------------------------------------
+`SPC V V`   | bring up a Vagrant box
+`SPC V p`   | (re)provision a box that is already up
+`SPC V D`   | destroy a box
+`SPC V s`   | view the status of running boxes in the current project
+`SPC V S`   | suspend a box
+`SPC V r`   | resume a suspended box (you can also use `SPC V V` for this)
+`SPC V H`   | halt (shut down) a box
+`SPC V e`   | edit the `Vagrantfile`
+`SPC V t`   | start a `vagrant-tramp-term` session - after start, edit files at `/vagrant:box_name:filename`

contrib/vagrant/Vagrantfile

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+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+# This file is provided for testing this layer - it doesn't really do
+# very much!
+
+# Vagrantfile API/syntax version. Don't touch unless you know what you're doing!
+VAGRANTFILE_API_VERSION = "2"
+
+Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
+  config.vm.box = "ubuntu/trusty64"
+
+  config.vm.provision :shell, inline: "echo provisioned"
+end

contrib/vagrant/packages.el

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+;;; packages.el --- Vagrant Layer extensions File for Spacemacs
+;;
+;; Copyright (c) 2012-2014 Sylvain Benner
+;; Copyright (c) 2015 Brian Hicks & Contributors
+;;
+;; Author: Brian Hicks <brian@brianthicks.com>
+;; URL: https://github.com/syl20bnr/spacemacs
+;;
+;; This file is not part of GNU Emacs.
+;;
+;;; License: GPLv3
+(defvar vagrant-packages '(vagrant
+                           vagrant-tramp))
+
+(defun vagrant/init-vagrant ()
+    (use-package vagrant
+      :defer t
+      :init (progn
+                (spacemacs/declare-prefix "V" "vagrant")
+                (evil-leader/set-key
+                   "VV" 'vagrant-up
+                   "Vp" 'vagrant-provision
+                   "VD" 'vagrant-destroy
+                   "Vs" 'vagrant-status
+                   "VS" 'vagrant-suspend
+                   "Vr" 'vagrant-resume
+                   "VH" 'vagrant-halt
+                   "Ve" 'vagrant-edit))))
+
+(defun vagrant/init-vagrant-tramp ()
+  (use-package vagrant-tramp
+    :defer t
+    :init (progn
+            (vagrant-tramp-enable)
+            (evil-leader/set-key
+               "Vt" 'vagrant-tramp-term))))