gulpjs/gulp

Files order is not preserved in buffer mode

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#300 opened on Feb 22, 2014

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 (20 comments) (0 reactions) (0 assignees)JavaScript (32,979 stars) (4,166 forks)batch import
documentationhelp wanted

Description

When the buffer mode is used and some plugins are doing some async stuffs on buffers, it leads to unordered files in the stream.

Creating a plugin that works asynchronously on buffers and preserve the inputed files order is over complicated.

The problem doesn't appear for streaming mode since all pipes are done immediatly.

Contributor guide

Tech stack
javascriptnodejs
Domain
toolingdeveloper experience
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
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
Understanding of Node.js streamsFamiliarity with gulp internals
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30
Research direction
Investigate gulp's buffer mode implementation in the source code (likely in lib/buffer.js or similar). Understand how the stream pipeline handles async plugins and why order is lost. Consider using ordered streams or adding a queue mechanism to reorder files after async operations. Review the comments in the issue for any proposed solutions or workarounds.