We now check explicitely for 'module_setup' in the SETUP_CACHE in order to avoid skipping setup because SETUP_CACHE was populated some other way. Other modules can implement the same mechanism to test if they've already run.
This closes#1206.
This change makes a distinction between no_hosts_matched and no_hosts_remaining.
In both cases we do not start facts-gathering, or run any tasks.
In the case that there are no more hosts remaining, we abort running tasks and abort the playbook.
I also cleaned up the leftovers from the previous patchsets, as these are no longer required.
This closes#1187.
Example playbook:
```yaml
---
- hosts: emptygroup
tasks:
- action: command date
- action: command false
- hosts: all
gather_facts: False
tasks:
- action: command ls
- action: command false
- action: command true
- hosts: all
tasks:
- action: command true
- action: command false
- hosts: all
tasks:
- action: command pwd
```
Sometimes you may want to allow variables through host_vars or inventory, but prompt for a value if it is not set or if the value does not conform to something specific. This option allows you to specify when you want to offer a prompt.
This patch also moves check_conditional to utils, and adds an is_unset() function which is nicer to read:
only_if: "not is_set('${var}')"
vs
only_if: "is_unset('${var}')"
We have a password-prompt for a configurable login name. Since we require to ask the password for this specific login, it is important to indicate what password needs to be prov ided on the prompt. So the prompt needs to be templated. That's what this patch does.
When the output of a command is stored in a register, this will create a
stdout_lines field in the result object that contains stdout split into a list
of lines. This list can then be iterated over using with_items.
Previously, importing a playbook in a different directory didn't
work because all of the relative paths were resolved relative to
the top-level playbook.
This patch resolves relative paths on a per-play level instead of
relative to the directory of the top-level playbook.
Also removes the dirname argument from the Play._get_vars method
since this argument wasn't used in the metho dbody.
The default is 0, which means all hosts. If set to 1, each host would run a playbook all the way through before moving
on the next host. Fact gathering is still parallel, regardless of the serial setting.