Whether or not the Pipeline plugin should do anything at all.
Whether or not to place the FIFO in the working directory. If false, it will be saved in /tmp or wherever $TMPDIR points. If macOS, then there only if PipelineSettings.useTMPDIR is true.
Custom path to use as FIFO filename, specified with --set pipeline.path=[...].
Whether ot not to obey $TMPDIR on macOS. If false, the FIFO will be saved in /tmp regardless of $TMPDIR. If true, $TMPDIR will be obeyed.
All settings for a PipelinePlugin, aggregated.