Fix and optimize the gate-quickstart role

Previously the role would not check out the role changes when running
directly on the extras-gate. Also avoid fetching changes that are
already checked out by Jenkins.

Change-Id: I8b9b9a65bdac7a55fc31e43c5054c6c027dc1bf5

roles/gate-quickstart/tasks/checkout.yml

@@ -9,8 +9,11 @@
     dest: '{{ lookup("env", "WORKSPACE") }}/{{ gated_project_name }}'
     refspec: '{{ gated_change.refspec }}'
     version: 'FETCH_HEAD'
+  # do not check out the gated change if it was already cloned by the jenkins job
+  when: gated_change.project != "{{ lookup('env', 'GERRIT_PROJECT') }}"
 
-- when: gated_project_name != "tripleo-quickstart"
+# do this only for the roles
+- when: gated_change.project != "openstack/tripleo-quickstart"
   block:
     - name: Modify requirements
       replace:

roles/gate-quickstart/tasks/main.yml

@@ -12,4 +12,4 @@
 - name: Check out the specific changes
   include: checkout.yml gated_change={{ item }}
   with_items: '{{ artg_change_list }}'
-  when: item.project in gated_projects and item.project != "{{ lookup('env', 'GERRIT_PROJECT') }}"
+  when: item.project in gated_projects