ocaml/dune

fish shell completion

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#15,334 opened on Jun 26, 2026

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help wanted

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Description

After #14779, we open the possibility of introducing shell completion for fish. It should follow the other completion support we have together with a fish shell completion script maintained on our side. This can then be upstreamed to cmdliner to address https://github.com/dbuenzli/cmdliner/issues/213.

Contributor guide

Research direction
Examine existing shell completion implementations in the repository, then create a fish completion script following similar patterns, and test it with the dune binary.
Tech stack
shell
Domain
cli
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
Git
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65