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Merge pull request #1404 from dagwieers/doc-fix1
Clarify how only_if works, also combined with with_items
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commit
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1 changed files with 12 additions and 4 deletions
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@ -272,12 +272,20 @@ In Ansible 0.8, a few shortcuts are available for testing whether a variable is
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tasks:
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- action: command echo hi
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only_if: is_set($some_variable)
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only_if: is_set('$some_variable')
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There is a matching 'is_unset' that works the same way. Do not quote the variables inside the function.
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There is a matching 'is_unset' that works the same way. Quoting the variable inside the function is mandatory.
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While only_if is a pretty good option for advanced users, it exposes more guts of the engine than we'd like, and
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we can do better. In 0.9, we will be adding 'when', which will be like a syntactic sugar for only_if and hide
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When combining `only_if` with `with_items`, be aware that the `only_if` statement is processed for each item.
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This is a deliberate design::
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tasks:
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- action: command echo $item
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with_item: [ 0, 2, 4, 6, 8, 10 ]
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only_if: "$item > 5"
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While `only_if` is a pretty good option for advanced users, it exposes more guts of the engine than we'd like, and
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we can do better. In 0.9, we will be adding `when`, which will be like a syntactic sugar for `only_if` and hide
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this level of complexity -- it will numerous built in operators.
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Conditional Imports
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