Add ansible parameter to uninstall

The new v3.0.4 tag was added, but it was edited after.
This raises an error during an update of existing git folder.
The solution is to add an option to delete existing checkout code.
With this we can deploy with `--tags pakiti -e pakiti_uninstall=true`
and it will delete and checkout again a fresh pakiti.
Resolves #5

defaults/main.yml

@@ -5,6 +5,9 @@ pakiti_install: true
 # if role will execute the pakiti software that sends information to the server
 pakiti_push: false
 
+# flags to indicate to uninstall
+pakiti_uninstall: false
+
 # when we want to have a way to only push, we can skip the cronjob creation on
 # the installation process
 pakiti_install_cron: true

tasks/install.yml

@@ -22,6 +22,7 @@
     mode: u=rwX,g=rX,o=rX
     recurse: true
   changed_when: false
+  when: pakiti_install
   tags: pakiti
 
 - name: Checkout the pakiti-client repository
@@ -32,7 +33,7 @@
     force: true
     accept_hostkey: true
   changed_when: false
-  when: not ansible_check_mode
+  when: pakiti_install and not ansible_check_mode
   become: true
   become_user: "{{ pakiti_user }}"
   tags: pakiti
@@ -45,6 +46,7 @@
     group: "{{ pakiti_user }}"
     mode: u=rwX,g=rX,o=rX
     recurse: true
+  when: pakiti_install
   changed_when: false
   tags: pakiti
 

tasks/main.yml

@@ -2,6 +2,10 @@
 - include_tasks: check-params.yml
   tags: pakiti
 
+- include_tasks: uninstall.yml
+  when: pakiti_uninstall
+  tags: pakiti
+
 - include_tasks: install.yml
   when: pakiti_install
   tags: pakiti

tasks/uninstall.yml

@@ -0,0 +1,7 @@
+---
+- name: Delete previous pakiti folder
+  file:
+    path: "{{ pakiti_client_path }}"
+    state: absent
+  when: pakiti_uninstall
+  tags: pakiti