facebook/zstd

Add stream-size option to pzstd

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#3,171 opened on Jun 21, 2022

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feature requestgood first issuehelp wanted

Description

The standard zstd tool has a --stream-size option so the file size can be set for streamed compression. However, pzstd doesn't support this option, so any file compressed with pzstd has to be decompressed with a stream (so, eg, the PyPi zstd module can't be used).

Contributor guide

Tech stack
c
Domain
cli
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 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
C programmingzstd API knowledgepzstd codebase familiarity
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50
Research direction
Start by examining how the standard zstd tool implements the stream size option, likely in programs/zstdcli.c. Then locate the equivalent pzstd source files (e.g., programs/pzstd.c or similar). Understand how pzstd handles compression options and add a new option to set the stream size. Ensure compatibility with the streaming API. Consider any related code in the repository that handles stream sizes for decompression.
Add stream-size option to pzstd · facebook/zstd#3171 | Good First Issue