Avoid task duplication by using default(omit).

awx/playbooks/project_update.yml

@@ -30,22 +30,7 @@
           repo: "{{scm_url}}"
           version: "{{scm_branch|quote}}"
           force: "{{scm_clean}}"
-          accept_hostkey: "{{scm_accept_hostkey}}"
+          accept_hostkey: "{{scm_accept_hostkey|default(omit)}}"
-        when: scm_accept_hostkey is defined
-        register: scm_result
-
-      - name: Set the git repository version
-        set_fact:
-          scm_version: "{{ scm_result['after'] }}"
-        when: "'after' in scm_result"
-
-      - name: update project using git
-        git:
-          dest: "{{project_path|quote}}"
-          repo: "{{scm_url}}"
-          version: "{{scm_branch|quote}}"
-          force: "{{scm_clean}}"
-        when: scm_accept_hostkey is not defined
         register: scm_result
 
       - name: Set the git repository version
@@ -74,29 +59,14 @@
       when: scm_type == 'hg'
 
     - block:
-      - name: update project using svn
-        subversion:
-          dest: "{{project_path|quote}}"
-          repo: "{{scm_url|quote}}"
-          revision: "{{scm_branch|quote}}"
-          force: "{{scm_clean}}"
-        when: not scm_username|default('')
-        register: scm_result
-
-      - name: Set the svn repository version
-        set_fact:
-          scm_version: "{{ scm_result['after'] }}"
-        when: "'after' in scm_result"
-
       - name: update project using svn with auth
         subversion:
           dest: "{{project_path|quote}}"
           repo: "{{scm_url|quote}}"
           revision: "{{scm_branch|quote}}"
           force: "{{scm_clean}}"
-          username: "{{scm_username|quote}}"
+          username: "{{scm_username|default(omit)}}"
-          password: "{{scm_password|quote}}"
+          password: "{{scm_password|default(omit)}}"
-        when: scm_username|default('')
         register: scm_result
 
       - name: Set the svn repository version