rust听说非常的牛逼。
就尝试了一下，找了一个web server 的小demo。
具体代码见下，在编译时发现
cargo build --release的时候，生成的release的二进制程序跟debug的程序一样大。
file看了一下有debug_info
file target/release/hello
target/release/hello: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, BuildID[sha1]=478ff8955688b981a585603b4ab47a2930c6a994, for GNU/Linux 3.2.0, with debug_info, not stripped于是就搜了一下，在 Cargo.toml中添加一个配置就可以将二进制程序瘦身。
[profile.release]
strip = true
可以看到瘦身后只有355K，之前可以有13MB的。 确实效果非常显著。
ll -h ./target/release/hello
-rwxrwxr-x 2 pcl pcl 355K 1月 30 17:51 ./target/release/hello*
具体过程：
cargo new hello
cd hellosrc/main.rs
use std::{
fs,
io::{prelude::*, BufReader},
net::{TcpListener, TcpStream},
};
fn main() {
let listener = TcpListener::bind("127.0.0.1:7878").unwrap();
for stream in listener.incoming() {
let stream = stream.unwrap();
handle_connection(stream);
}
}
fn handle_connection(mut stream: TcpStream) {
let buf_reader = BufReader::new(&mut stream);
let http_request: Vec<_> = buf_reader
.lines()
.map(|result| result.unwrap())
.take_while(|line| !line.is_empty())
.collect();
let status_line = "HTTP/1.1 200 OK";
let contents = fs::read_to_string("hello.html").unwrap();
let length = contents.len();
let response =
format!("{status_line}\r\nContent-Length: {length}\r\n\r\n{contents}");
stream.write_all(response.as_bytes()).unwrap();
}
本地目录下hello.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Hello!</title>
</head>
<body>
<h1>Hello!</h1>
<p>Hi from Rust</p>
</body>
</html>
Cargo.toml
[package]
name = "hello"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
[profile.release]
strip = true
