gulpjs/gulp

gulp treats flags after -- as task names

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#2383 opened on Oct 1, 2019

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 (13 comments) (2 reactions) (0 assignees)JavaScript (32,979 stars) (4,166 forks)batch import
further investigation requiredhelp wanted

Description

What actually happened?

>gulp default -- --version
[10:20:19] Using gulpfile [...]\gulpfile.js
[10:20:19] Task never defined: --version
[10:20:19] To list available tasks, try running: gulp --tasks

What were you expecting to happen? Gulp should ignore all cli arguments after --

Please post a sample of your gulpfile (preferably reduced to just the bit that's not working) N/A

What version of gulp are you using?

CLI version: 2.2.0 Local version: 4.0.2

What versions of npm and node are you using? npm 6.2.0 node 10.9.0

Contributor guide

Tech stack
javascriptnodejs
Domain
clibuild systemdeveloper experience
Issue type
bug
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.
under 1 hour
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Node.js basicsCLI argument parsing
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
80
Research direction
This bug is in gulp's CLI argument parsing, likely in the gulp cli package. The issue is that arguments after ' ' are treated as task names instead of being ignored. The parsing logic should check for the ' ' separator and treat subsequent arguments as flags to the task, not as task names. Look at the argument processing in gulp cli's code (probably in a file like 'gulp cli/lib/arguments.js' or similar). Review the commit history or related issues to understand the expected behavior. The fix is likely small and localized to the point where commands are parsed from process.argv.