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feat(engine): link nu-cmd-lang and nu-command for stream combinators #15

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opened 2026-09-09 10:15:32 +00:00 by larandar · 0 comments
larandar commented 2026-09-09 10:15:32 +00:00
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Proposal

Provide native par-each, reduce, chunks, zip, and window stream combinators.

Design

Link nu-cmd-lang and nu-command and register the five commands in the embedded engine.

Tasks

  • Link crates; register commands; preserve stream values and report errors.

Gherkin Specification Delta

must.contracts.ting-workflows.deliverable-15

Scenario: Deliverable behavior

  • GIVEN the stated prerequisites and inputs
  • WHEN the feature is exercised
  • THEN an embedded stream, when a supported combinator runs, then it produces the expected native stream result.
## Proposal Provide native par-each, reduce, chunks, zip, and window stream combinators. ## Design Link nu-cmd-lang and nu-command and register the five commands in the embedded engine. ## Tasks - Link crates; register commands; preserve stream values and report errors. ## Gherkin Specification Delta ### must.contracts.ting-workflows.deliverable-15 **Scenario: Deliverable behavior** - **GIVEN** the stated prerequisites and inputs - **WHEN** the feature is exercised - **THEN** an embedded stream, when a supported combinator runs, then it produces the expected native stream result.
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Blocks
#2 Session: ting-workflow-executor — embedded Nushell, bwrap sandboxing, and OWS DSL 1.0
Ting/workflows
#33 feat(cli): wf CLI binary run and check subcommands
Ting/workflows
Depends on
#14 feat(engine): embed nu-engine and nu-protocol with Run context injection
Ting/workflows
Reference
Ting/workflows#15
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