v0.5.0 - Re-add Baidu & Bing China

What's New

Baidu & Bing China Re-added

• Baidu (百度): Re-added behind headless feature using PageFetcher pattern
• Bing China (必应中国): Re-added behind headless feature using PageFetcher pattern
• Both engines use the shared BrowserPool for efficient Chrome process management

Engine Count: 8 Total

• 5 default engines: DuckDuckGo, Brave, Wikipedia, Sogou, 360 Search
• 3 headless engines: Google, Baidu, Bing China (require --headless flag + Chrome)

Quality

• 222 unit tests (198 library + 24 CLI), 94.36% line coverage
• Clippy clean, zero warnings

Usage

# Search with Baidu and Bing China
a3s-search "Rust 编程" -e baidu,bing_cn --headless

# All headless engines
a3s-search "Rust" -e g,baidu,bing_cn --headless

v0.4.0 - Headless Browser Support

What's New

Headless Browser Support

• PageFetcher trait: Pluggable page fetching abstraction (plain HTTP or headless browser)
• HttpFetcher: reqwest-based PageFetcher for server-rendered pages
• BrowserPool: Shared Chrome process with tab concurrency control (semaphore-based)
• BrowserFetcher: CDP-based PageFetcher for JavaScript-rendered pages
• WaitStrategy: Configurable wait strategies (Load, NetworkIdle, Selector, Delay)

Google Engine Re-added

• Google search engine re-added behind headless Cargo feature
• Uses CSS selectors: div.g, h3, a[href], div.VwiC3b
• Weight: 1.5 (higher trust), Timeout: 10s

CLI Updates

• --headless flag for enabling headless browser mode
• a3s-search engines now shows headless engines section
• Graceful warnings when headless feature not compiled in

Quality

• 207 unit tests (183 library + 24 CLI), 94.07% line coverage
• Zero impact on default build (all browser code behind headless feature)
• Clippy clean, zero warnings

Install

# Homebrew
brew tap A3S-Lab/tap && brew install a3s-search

# Cargo
cargo install a3s-search

# With headless support
cargo install a3s-search --features headless

a3s-search v0.3.0

Embeddable meta search engine library with CLI and proxy pool support

Key Features:

• Meta search across multiple engines (DuckDuckGo, Brave, Wikipedia, Sogou, 360)
• Proxy pool support (HTTP, HTTPS, SOCKS5)
• CLI with text/JSON/compact output formats
• 167 tests passing