Is it possible to notify handler if task didn't change anything?
I'm creating a backup prior to executing a task, and want to
remove it if nothing changed. Currently I do it like so:
- command: cp {{backsrc}} {{backdst}}
- apt_repository: repo="{{ item }}" state=absent update_cache=false
register: aptrem
with_items: reporem
- apt_repository: repo="{{ item }}" state=present update_cache=false
register: aptadd
with_items: repoadd
- command: rm {{backdst}}
when: aptrem.changed == 0 and aptadd.changed == 0
- apt: update_cache=true
when: aptrem.changed != 0 or aptadd.changed != 0
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