gleam-lang/gleam

Bad error message when trying to revert an old release

Open

#5708 opened on May 13, 2026

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 (7 comments) (0 reactions) (0 assignees)Rust (21,417 stars) (960 forks)batch import
good first issuehelp wanted

Description

When running gleam hex revert, if the release is too old (and can't be reverted) the error message we get back from Hex shows some raw json object rather than a nice error message:

Contributor guide

Tech stack
rust
Domain
clideveloper 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.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
basic Rustunderstanding of HTTP requests
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75
Research direction
Look at the implementation of the `hex revert` command in the gleam repository, likely in the `src/hex/` directory. Find where the HTTP request to Hex.pm is made and the response is processed. Currently, the raw JSON error from Hex is displayed. To fix, parse the JSON response, extract the error message, and format it nicely. Check existing error handling patterns in other hex commands for consistency.