ninja-build/ninja

Add testing and documentation for `-k` and `-l` flags

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#2,757 opened on Mar 26, 2026

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help wanted

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Description

These 2 flags are not mentioned in the Manual page (though they are listed when --help is used, which may be sufficient as-is), and are not tested in the test suite. I have rough ideas for, and am willing to make a PR (or separate PRs) to fix these issues, which in turn will also fix issue #630.

Contributor guide

Research direction
Examine existing tests for flag handling and the manual page, then implement tests and update documentation.
Tech stack
cpppython
Domain
build systemcli
Issue type
Test
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.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitC++Python
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75