Closes #27 - Optimize the update process.

update.sh

@@ -1,9 +1,14 @@
 #!/usr/bin/env bash
 
-sudo apt-get update
-sudo apt-get install -q -y software-properties-common
-sudo apt-add-repository ppa:ansible/ansible
-sudo apt-get update
-sudo apt-get install -q -y ansible python-mysqldb
+PKG_OK=$(dpkg-query -W --showformat='${Status}\n' ansible|grep "install ok installed")
+echo Checking for Ansible: $PKG_OK
+
+if [ "" == "$PKG_OK" ]; then
+    sudo apt-get update
+    sudo apt-get install -q -y software-properties-common
+    sudo apt-add-repository ppa:ansible/ansible
+    sudo apt-get update
+    sudo apt-get install -q -y ansible python-mysqldb
+fi
 
 ansible-playbook util/ansible/update.yml --inventory=util/ansible/hosts --extra-vars "app_env=production"

util/ansible/roles/composer/tasks/main.yml

@@ -2,6 +2,7 @@
 - name: Install Composer
   become: true
   shell: curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer
+  creates: /usr/bin/composer
   args:
     warn: no
 

util/ansible/roles/php-phalcon/tasks/main.yml

@@ -2,17 +2,21 @@
   - name: Add PHP PPA repository
     become: true
     apt_repository: repo=ppa:ondrej/php
+    register: installed_php_ppa
     when: ansible_distribution == 'Ubuntu' and ansible_distribution_release == 'trusty'
 
   - name: Add Phalcon PPA repository
     become: true
     shell: curl -s https://packagecloud.io/install/repositories/phalcon/stable/script.deb.sh | sudo bash
+    register: installed_phalcon_ppa
+    creates: /etc/apt/sources.list.d/phalcon_stable.list
     args:
       warn: no
 
   - name: Update apt again
     become: true
     apt:  update_cache=yes
+    when: installed_phalcon_ppa.changed or installed_php_ppa.changed
 
   - name: Install PHP Libraries
     become: true

util/ansible/update.yml

@@ -10,8 +10,8 @@
 
   roles:
     - init
+    - azuracast-update
     - azuracast-radio
     - php-phalcon
     - composer
-    - azuracast-cron
-    - azuracast-update
+    - azuracast-cron