1 files changed, 55 insertions, 0 deletions
diff --git a/roles/prepare/tasks/except.yml b/roles/prepare/tasks/except.yml
new file mode 100644
index 0000000..8d8abff
--- /dev/null
+++ b/roles/prepare/tasks/except.yml
@@ -0,0 +1,55 @@
+---
+# in this file, default variable value is '-666-', I hope no one will ever
+# test the number of the beast :)
+
+
+- name: Testing 'EXCEPT' condition
+  debug:
+    var: condition
+
+- name: if condition is only one word
+  block:
+    - name: check variable is present
+      include_tasks: exit.yml
+      when: lookup('env', condition)| default(False, true)
+  when: condition.split()| length == 1
+
+- name: if condition contains '=='
+  block:
+    - name: split condition with '=='
+      set_fact:
+        cond: "{{ (condition|replace(' == ', '==')).split('==') }}"
+    - debug: msg="{{ cond[1:]| join('==') }}"
+    - name: test condition
+      include_tasks: exit.yml
+      when: (lookup('env', cond[0])| default('-666-', true)) == (
+            cond[1:]| join('=='))
+  when: condition is search('==')
+
+- name: if condition contains '!='
+  block:
+    - name: split condition with '!='
+      set_fact:
+        cond: "{{ (condition|replace(' != ', '!=')).split('!=') }}"
+    - name: test condition
+      include_tasks: exit.yml
+      when: (lookup('env', cond[0])| default('-666-', true)) != (
+            cond[1:]| join('!='))
+  when: condition is search('!=')
+
+- name: if condition contains 'in'
+  block:
+    - name: split condition with ' in '
+      set_fact:
+        cond: "{{ condition.split(' in ') }}"
+    - name: split list
+      set_fact:
+        inlist: |
+          {{ (cond[1]|
+              replace(', ', ',')| replace(' ,', ',')|
+              replace(' ]', '') | replace(']', '')|
+              replace('[ ', '') | replace('[', '')).split(',') }}
+    - name: test condition
+      include_tasks: exit.yml
+      when: (lookup('env', cond[0])| default('-666-', true)) in inlist
+  when: condition is search(' in ')