Install proposal scripts only when needed

Move proposal scripts from jenkins/scripts to the proposal directory
so that we can install them only for proposal scripts and do not need
to bake them into nodes.

Change-Id: I356906e4a43597cc913bfa539cac7c2c6dfce117

playbooks/proposal/pre.yaml

@@ -3,6 +3,17 @@
     - name: Install git-review
       command: pip install git-review
       become: yes
+
+    - name: Copy scripts to the script dir on the node
+      copy:
+        dest: '{{ ansible_user_dir }}/scripts/'
+        src: '{{ item }}'
+        mode: 0755
+      with_items:
+        - generate_puppetfile.sh
+        - propose_update.sh
+        - sync_openstack_ansible_common_files.sh
+
   roles:
     - role: configure-git
       git_config:

playbooks/proposal/propose_update.sh

@@ -65,14 +65,14 @@ elif [ "$OWN_PROJECT" == "puppet-openstack-constraints" ] ; then
     TOPIC="openstack/puppet/constraints"
     PROJECTS=openstack/puppet-openstack-integration
     function update {
-        bash /usr/local/jenkins/slave_scripts/generate_puppetfile.sh
+        bash /home/zuul/scripts/generate_puppetfile.sh
     }
 elif [ "$OWN_PROJECT" == "openstack-ansible-tests" ] ; then
     INITIAL_COMMIT_MSG="Updated from OpenStack Ansible Tests"
     TOPIC="openstack/openstack-ansible-tests/sync-tests"
     PROJECTS=$(./gen-projects-list.sh)
     function update {
-        bash /usr/local/jenkins/slave_scripts/sync_openstack_ansible_common_files.sh $1
+        bash /home/zuul/scripts/sync_openstack_ansible_common_files.sh $1
     }
 elif [ "$OWN_PROJECT" == "os-service-types" ] ; then
     INITIAL_COMMIT_MSG="Updated from OpenStack Service Type Authority"