Don't post reports if there are no reports to post

If we don't produce any reports, don't post them.

Change-Id: I06f0bf47a1761f90118ad45a99e33f112699a4c7

tasks/main.yml

@@ -70,16 +70,19 @@
 
   - name: set log filename
     set_fact: puppet_logfile="{{ files.stdout_lines|sort|last }}"
+    when: "{{ files.stdout_lines|length > 0 }}"
 
   - name: create reports directory
     file: path=/var/lib/puppet/reports/{{ ansible_fqdn }} owner=root group=root mode=0755 state=directory
     delegate_to: localhost
+    when: "{{ files.stdout_lines|length > 0 }}"
 
   - name: fetch file
     synchronize:
       mode: pull
       src: "{{ puppet_logfile }}"
       dest: /var/lib/puppet/reports/{{ ansible_fqdn }}
+    when: "{{ files.stdout_lines|length > 0 }}"
 
   - name: post facts
     puppet_post_puppetdb:
@@ -89,5 +92,6 @@
       whoami: "{{ puppet_report_as }}"
     delegate_to: localhost
     connection: local
+    when: "{{ files.stdout_lines|length > 0 }}"
 
   when: puppetdb is defined and puppet_report_as is defined