pub fn build_transforms(
env: &HashMap<String, String>,
) -> CliResult<Vec<TransformSpec>>Expand description
Construct an ordered Vec<TransformSpec> from FAUCET_TRANSFORM_<N> selectors
and FAUCET_TRANSFORM_<N>_<FIELD> config fields. Indices must be contiguous
starting at 1; any gap is an error so a misnumbered var never silently drops
a transform.