add 'exists()' script function to check if variable exists #4435
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there was only one issue in regard to backwards compatibility, and this is solved: #4436 |
rgerhards
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The PR itself is now ready to be merged, except for missing doc. Tests for new functionality added and passing. @davidelang @julthomas |
rgerhards
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This implements a way to check if rsyslog variables (e.g. '$!path!var') is currently set of not. Sample: if exists($!somevar) then ... closes rsyslog#4385
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This implements a way to check if rsyslog variables (e.g. '$!path!var') is
currently set of not.
closes #4385