Bug 757751

Summary: RFE: Support conditional assignment in Wallaby parameter settings
Product: Red Hat Enterprise MRG Reporter: Will Benton <willb>
Component: wallabyAssignee: grid-maint-list <grid-maint-list>
Status: CLOSED WONTFIX QA Contact: MRG Quality Engineering <mrgqe-bugs>
Severity: unspecified Docs Contact:
Priority: low    
Version: 2.0CC: matt, mkudlej
Target Milestone: ---Keywords: FutureFeature, Reopened
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Hardware: Unspecified   
OS: Unspecified   
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Fixed In Version: Doc Type: Enhancement
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Last Closed: 2016-05-26 20:10:06 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Will Benton 2011-11-28 15:40:31 UTC 
Wallaby currently supports special parameter value-assignments that begin with distinguished prefixes.  When these are applied to a working configuration, modify an existing value, if it exists, rather than replacing it.  For example, ">= VALUE" appends ", VALUE" to the preexisting parameter.  This bug suggests adding a "?=" prefix that will conditionally assign a value to a parameter only if it does not already have a value.  So a feature that gives PARAM a value of "?= VALUE" will have no effect when applied to a working configuration that already contains a value for PARAM, but it will assign "VALUE" to PARAM if the working configuration does not have a value for PARAM.