Added chef_solo_command config option

[robcoward]

In order to get chef-solo to run under an openssh connection under
cygwin, test-kitchen needs to run chef-solo.bat so that cygwin doesnt
try to run ruby.exe with a cygwin path. This option allows the chef-solo
command to be overriden in the kitchen.yml configuration.

[robcoward]

This is my kitchen.yml file I use with this change in order to get a Window7 VM running under test-kitchen.

platforms:
- name: Windows7
  driver_config:
    box: windows7
    gui: true
    box_url: http://server/pub/win7x64-pro-chef.box
  provisioner:
    sudo: false
    require_chef_omnibus: false
    root_path: c:/temp/kitchen
    chef_solo_command: chef-solo.bat

[sethvargo]

I'd rather just support Windows that have such a hack

[robcoward]

Is windows support on the roadmap since the vagrant provisioning support was removed ?

[sethvargo]

Yes

[fnichol]

Hey there @robcoward!

I have good news and bad news. The good news is that we have support for a :chef_solo_path and :chef_client_path in master as of 24f6cab in #381. The bad news is that I should have included your work into that PR 😢 I will pull your work into the CHANGELOG however--I agree this will be darn useful.

On the Windows front, we should have a gold solid solution being merged in shortly, after a few of these outstanding issues are closed out.