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Add an only_if option to vars_prompt to make prompts conditional

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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}')"
This commit is contained in:
Dag Wieers
2012-09-24 21:06:34 +02:00
parent 3939f7a812
commit 4e9a970616
3 changed files with 11 additions and 6 deletions
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4
lib/ansible/playbook/play.py
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@@ -172,8 +172,10 @@ class Play(object):
encrypt = var.get("encrypt", None)
salt_size = var.get("salt_size", None)
salt = var.get("salt", None)
conditional = var.get("only_if", 'True')
vars[vname] = self.playbook.callbacks.on_vars_prompt(vname, private, prompt,encrypt, confirm, salt_size, salt)
if utils.check_conditional(conditional):
vars[vname] = self.playbook.callbacks.on_vars_prompt(vname, private, prompt,encrypt, confirm, salt_size, salt)
elif type(self.vars_prompt) == dict:
for (vname, prompt) in self.vars_prompt.iteritems():