Add variables to skip the preferences and OSX configuration tasks

default.config.yml

@@ -2,6 +2,8 @@
 downloads: ~/.ansible-downloads/
 
 configure_sudoers: yes
+configure_prefs: yes
+configure_osx: yes
 
 dotfiles_repo: https://github.com/geerlingguy/dotfiles.git
 dotfiles_repo_accept_hostkey: yes

main.yml

@@ -19,8 +19,10 @@
   tasks:
     - include: tasks/ansible-setup.yml
     - include: tasks/preferences.yml
+      when: configure_prefs
 
     # TODO: Use sudo once .osx can be run via root with no user interaction.
     - name: Run .osx dotfiles.
       shell: ~/.osx --no-restart
       changed_when: false
+      when: configure_osx