Checking for all file dependencies so tasks can be re-run

roles/common/tasks/main.yml

@@ -46,29 +46,49 @@
 - name: Set git email
   shell: git config --global user.email "jacob.wimer@gmail.com"
 
+- name: Is docker installed
+  shell: which docker
+  resgister: docker_installed
+
 - name: Get docker
   shell: curl -sSL https://get.docker.com/ | sh
+  when: docker_install is none
 
 - name: Get docker compose
   shell: curl -L https://github.com/docker/compose/releases/download/1.5.0/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose  
+  when: docker_install is none
 
 - name: Link docker compose
   shell: chmod +x /usr/local/bin/docker-compose
+  when: docker_install is none
 
 - name: Set timezone to NewYork
   shell: timedatectl set-timezone America/New_York
 
+- name: Is heroku installed
+  shell: which heroku
+  resgister: heroku_installed
+
 - name: Install heroku toolbelt
   shell: wget -O- https://toolbelt.heroku.com/install-ubuntu.sh | sh
+  when: heroku_installed is none
+
+- name: Does the update script exist
+  stat: path=/etc/cron.daily/update.sh
+  register: update_script
+  ignore_errors: yes
 
 - name: Create update script
   shell: touch /etc/cron.daily/update.sh
+  when: update_script|failed
 
 - name: Set update script as executable
   shell: chmod +x /etc/cron.daily/update.sh
+  when: update_script|failed
 
 - name: Add update line to update script
   shell: echo apt-get update && apt-get upgrade -y && apt-get clean && apt-get autoclean && apt-get autoremove -y && apt-get update >> /etc/cron.daily/update.sh
+  when: update_script|failed
 
 - name: test for swap partition
   shell: swapon -s | grep -E "^/"