fix(go.d/pkg/logs): fix ParserConfig.CSV omitempty behavior #21526
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…mitempty behavior
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Pull request overview
This PR fixes a YAML marshaling issue where CSVConfig was always serialized as csv_config: {} even when empty, preventing the omitempty tag on the parent ParserConfig.CSV field from working correctly.
Key Changes:
- Introduces a custom
CSVCheckFieldFunctype with anIsZero()method that always returnstrue - Changes the
CheckFieldfield type from a raw function type to the new named type - Enables proper
omitemptybehavior for the parentParserConfig.CSVfield
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ilyam8
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stelfrag
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Jan 8, 2026
Merged
Ferroin
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Jan 12, 2026
(cherry picked from commit 0c21979)
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Summary
Problem:
The
CSVConfigstruct was always being marshaled ascsv_config: {}in YAML output, even when all configuration fields were empty. This prevented theomitemptytag on the parentParserConfig.CSVfield from working correctly.Solution:
Created a custom
CSVCheckFieldFunctype that implements theIsZeroerinterface from the yaml package. By havingIsZero()always returntrue, the function field is treated as empty foromitemptyevaluation purposes.Test Plan
Additional Information
For users: How does this change affect me?
Summary by cubic
Fixed CSVConfig YAML omitempty so empty config no longer outputs csv_config: {}. Added CSVCheckFieldFunc with IsZero() to mark CheckField as empty during omitempty evaluation.
Written for commit 7210c07. Summary will update on new commits.