RickyCook

# Uses the rsync change summary to figure out how many things changed, and uses that
# to tell Ansible if something changed or not
- name: sync hieradata
  shell: rsync --delete -ri "/tmp/repo/hieradata" "/etc/puppet/hieradata" | awk '{print $1}' | grep -vE '..\.\..\.\.\.\.' | wc -l
  register: hieradata_changes
  changed_when: "hieradata_changes.stdout|int != 0"

tkersey

http://stackoverflow.com/questions/927358/git-undo-last-commit

Undo a commit and redo

$ git commit ...
$ git reset --soft HEAD^      (1)
$ edit                        (2)
$ git commit -a -c ORIG_HEAD  (3)
This is most often done when you remembered what you just committed is incomplete, or you misspelled your commit message, or both. Leaves working tree as it was before "reset".