Added flag galaxy_restart_handler_enabled to control restart handling

Also fixed typo in travis.yml

.travis.yml

@@ -26,7 +26,7 @@ install:
   - ansible localhost -c local -m wait_for -a "port=8080 delay=5 state=started timeout=150"
 
   # Wait for Galaxy to respond
-  - ansible localhost -c local -m uri -a "url=http://localhost:8080/ register=result until='result.status[0] in [\"2\", \"3\"]' retries=50 delay=3 ignore_error=True"
+  - ansible localhost -c local -m uri -a "url=http://localhost:8080/ register=result until='result.status[0] in [\"2\", \"3\"]' retries=50 delay=3 ignore_errors=True"
 script:
   # Check the role works in the test playbook.
   - ansible-playbook -i "localhost," -c local -e galaxy_tools_galaxy_instance_url=http://127.0.0.1:8080 -e galaxy_runs_in_docker=yes -e galaxy_tools_api_key=admin test_playbook.yml

defaults/main.yml

@@ -5,6 +5,10 @@ galaxy_tools_install_workflows: no
 galaxy_tools_create_bootstrap_user: no
 galaxy_tools_delete_bootstrap_user: no
 
+# If enabled, the restart handler will attempt to restart Galaxy after tool
+# installation, assuming Galaxy is controlled by run.sh, docker or supervisor.
+galaxy_restart_handler_enabled: no
+
 # A URL or an IP address for the Galaxy instance where the tools are to be
 # installed
 galaxy_tools_galaxy_instance_url: 127.0.0.1:8080

handlers/main.yml

@@ -1,2 +1,3 @@
 - name: ansible-galaxy-tools restart galaxy
   include: restart_galaxy.yml
+  when: galaxy_restart_handler_enabled|bool