yarnpkg/yarn

Case of package directory not respected on update.

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#5,708 opened on Apr 20, 2018

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 (5 comments) (0 reactions) (1 assignee)JavaScript (41,514 stars) (2,731 forks)batch import
cat-bughelp wantedos-windows

Description

We have a package where one of the directories just changed casing, from "fonts" to "Fonts" npm and the tgz file respect the new casing, but when I use yarn install the name of the directory is not changed to the new casing, but remains as lowercase. I expect yarn to respect the casing of the package.

on Windows 10, node 9.11.1, yarn 1.5.1

Contributor guide

Tech stack
javascriptnodejs
Domain
tooling
Issue type
bug
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.
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
basic understanding of yarnknowledge of file system case handling on Windows
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30
Research direction
Investigate how yarn extracts and updates package directories, particularly on Windows where file system is case insensitive but preserving case is important. Look at the extraction logic in the yarn source code, possibly in the 'package fetcher' or 'install' modules. Check if there is existing handling for directory renaming during updates. The issue mentions that npm and tgz respect casing, so compare with npm's behavior. Consider the linked issue comments for any additional context or attempted solutions.