CLI Option to save logs to a file

Description

--log <path>                Path to a verbose appending log.

Contributor guide

Tech stack

rustshell

Domain

clitoolingdeveloper 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.

half day

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

active

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

mostly clear

Prerequisites

Basic Rust knowledgeFamiliarity with CLI argument parsing (clap)

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

60

Research direction

Examine uv's CLI argument parsing, likely using the clap crate. Find existing logging options (e.g., verbose) and how they are handled. Look at the linked issue #8351 for prior discussion on UV LOG FILE. Determine where to add a new log flag, and how to write log output to a file, possibly using a file appender. Check if there's an existing logging abstraction that can be extended. Implement the flag and ensure logs are written to the specified path.