require not working

webserver.sls

app-pkgs:
  pkg:
    - latest
    - names:
      - python-virtualenv
      - python-dev
      - libmysqlclient-dev
      - libxml2-dev
      - mercurial
      - git

webapp:
  git:
    - exists
    - repo: https://username@github.com/company/project.git
    - name: /var/www/nsite/

/var/www/env:
  virtualenv:
    - manage
    - requirements: salt://webserver/requirements.txt
    - no_site_packages: True
    - require:
      - pkg: app-pkgs
      - git: webapp