System Utilities

Overview

spark magic provides day-to-day system utilities: DNS cache flushing and package-manager mirror switching.

Core Capabilities

DNS Flush

One-shot DNS cache flush; supports macOS, Windows, and Linux.

spark magic flush-dns

Python pip Mirror Switching

Manage pip mirror configuration to alleviate slow PyPI access in China.

spark magic pip list          # List available mirrors
spark magic pip use tsinghua  # Switch to the Tsinghua mirror
spark magic pip current       # Show the current mirror

Available mirrors:

Name Provider
tsinghua Tsinghua University
aliyun Alibaba Cloud
douban Douban
ustc University of Science and Technology of China
tencent Tencent Cloud

Go Module Proxy Switching

Manage Go module proxy configuration.

spark magic go list         # List available proxies
spark magic go use goproxy  # Switch to goproxy.cn
spark magic go current      # Show the current proxy

Available proxies:

Name Provider
aliyun Alibaba Cloud
tsinghua Tsinghua University
goproxy goproxy.cn
ustc University of Science and Technology of China
nju Nanjing University

Node.js npm Registry Switching

Manage the npm registry configuration.

spark magic node list       # List available registries
spark magic node use taobao # Switch to the Taobao mirror
spark magic node current    # Show the current registry

Available registries:

Name Provider
taobao Taobao
aliyun Alibaba Cloud
tencent Tencent Cloud
huawei Huawei Cloud
ustc University of Science and Technology of China

Project Directory Cleaning

Recursively clean node_modules and .venv directories to free disk space.

spark magic clean           # Clean both
spark magic clean -m node   # Only node_modules
spark magic clean -m python # Only .venv

Parameters

The three mirror-switch commands (pip/go/node) share the same subcommand structure:

Subcommand Argument Description
list — List available mirrors
use <name> Switch to the named mirror
current — Show the current configuration
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