利用rust实现一个命令行工具

cargo new my_dev_tool
cd my_dev_tool

[dependencies]
clap = "4.4.0"
chrono = "0.4"
urlencoding = "2.1"

use clap::{Arg, ArgMatches, Command};
use chrono::{Local, TimeZone};
use urlencoding::{decode, encode};

fn main() {
    let matches = Command::new("my_dev_tool")
        .version("1.0")
        .author("Your Name <your.email@example.com>")
        .about("Developer's tool for urlencode and time format!")
        .subcommand_required(true)
        .arg_required_else_help(true)
        .subcommand(
            Command::new("urlencode")
                .about("URL-encode a string")
                .arg(Arg::new("input").help("String to encode").required(true)),
        )
        .subcommand(
            Command::new("urldecode")
                .about("URL-decode a string")
                .arg(Arg::new("input").help("String to decode").required(true)),
        )
        .subcommand(
            Command::new("timestamp")
                .about("Convert a UNIX timestamp to local datetime")
                .arg(Arg::new("timestamp").help("UNIX timestamp").required(true)),
        )
        .get_matches();

    match matches.subcommand() {
        Some(("urlencode", sub_matches)) => url_encode(sub_matches),
        Some(("urldecode", sub_matches)) => url_decode(sub_matches),
        Some(("timestamp", sub_matches)) => convert_timestamp(sub_matches),
        _ => unreachable!(),
    }
}

fn url_encode(matches: &ArgMatches) {
    if let Some(input) = matches.get_one::<String>("input") {
        println!("{}", encode(input));
    }
}

fn url_decode(matches: &ArgMatches) {
    if let Some(input) = matches.get_one::<String>("input") {
        println!("{}", decode(input).unwrap());
    }
}

fn convert_timestamp(matches: &ArgMatches) {
    if let Some(timestamp_str) = matches.get_one::<String>("timestamp") {
        let timestamp = timestamp_str.parse::<i64>().unwrap();
        let datetime = Local.timestamp_opt(timestamp, 0).unwrap();
        println!("{}", datetime.to_rfc3339());
    }
}

cargo build --release

sudo cp target/release/my_dev_tool /usr/local/bin/

my_dev_tool urlencode "https://example.com"
my_dev_tool urldecode "https%3A%2F%2Fexample.com"
my_dev_tool timestamp 1609459200

cargo login [your_api_token]

[package]
name = "my_dev_tool"
version = "0.1.0"
authors = ["Your Name <youremail@example.com>"]
edition = "2018"

# 以下是描述和文档链接等可选字段
description = "A useful development tool for various tasks"
documentation = "https://example.com/my_dev_tool/docs"
license = "MIT OR Apache-2.0"

[dependencies]
clap = "3.0"
chrono = "0.4"
urlencoding = "2.1"

cargo publish

cargo install my_dev_tool

% cargo install my_dev_tool
    Updating crates.io index
  Downloaded my_dev_tool v0.1.0
  Downloaded 1 crate (10.7 KB) in 2.64s
  Installing my_dev_tool v0.1.0
    Updating crates.io index
   Compiling autocfg v1.1.0
   Compiling utf8parse v0.2.1
   Compiling anstyle-query v1.0.0
   Compiling colorchoice v1.0.0
   Compiling anstyle v1.0.4
   Compiling strsim v0.10.0
   Compiling clap_lex v0.6.0
   Compiling iana-time-zone v0.1.58
   Compiling urlencoding v2.1.3
   Compiling anstyle-parse v0.2.2
   Compiling anstream v0.6.4
   Compiling num-traits v0.2.17
   Compiling clap_builder v4.4.8
   Compiling chrono v0.4.31
   Compiling clap v4.4.8
   Compiling my_dev_tool v0.1.0
    Finished release [optimized] target(s) in 7.84s
  Installing /home/maocg/.cargo/bin/my_dev_tool
   Installed package `my_dev_tool v0.1.0` (executable `my_dev_tool`)

% my_dev_tool timestamp 1609459200
2021-01-01T08:00:00+08:00