Schniz/fnm

Arch detection override

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#239 opened on Aug 29, 2020

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good first issue

Description

I am running fnm on Alpine, meaning no glibc thus official node.js build can't be used. I set the appropriate mirror env variable to the unofficial one, but it still fails to install because my arch is x64 but the unofficial build has -musl appended onto that. Hopefully a flag to override that can be added

Contributor guide

Tech stack
rust
Domain
clideveloper experience
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.
1-3 hours
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
Rust programmingfnm codebase structure
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
Investigate how fnm currently determines the system architecture (likely using Rust's std::env::consts::ARCH or similar). Look at the download URL construction in the codebase, e.g., in src/download.rs or similar. The request is to add a CLI flag (e.g., arch) that overrides the detected architecture. Ensure the flag also appends ' musl' when needed. Check existing CLI parsing code and implement the flag accordingly.