create cli.json
json
{
"name":"cargo",
"version":"1.0.0",
"authors":["andrew <dnrops@anonymous.com>","ryan <rysn@gmail.com>"],
"description":"Rust's package manager",
"options":[
{
"name":"--version",
"short":"V",
"description":"Print version info and exit"
},
{
"name":"--offline",
"description":"Run without accessing the network"
}
],
"commands":[
{
"name":"build",
"short":"b",
"description":"Compile the current package"
},
{
"name":"check",
"short":"c",
"description":"Analyze the current package and report errors, but don't build object files"
},
{
"name":"clean",
"description":"Remove the target directory"
},
{
"name":"new",
"description":"Create a new cargo package"
},
{
"name":"add",
"description":"Add dependencies to a manifest file"
}
]
}
cargo add cok
main.rs
```rust
fn main() {
use cok::Cli;
let json = includestr!("../cli.json");
let cli = Cli::new(json);
let args = cli.args();
if args.len() !=3{
cli.printhelp()
}
}
a simple cli
cargo 1.0.0
andrew dnrops@anonymous.com,ryan rysn@gmail.com
Rust's package manager
Usage: cargo [OPTIONS] [COMMAND]
Options: cargo build, b Compile the current package cargo check, c Analyze the current package and report errors, but don't build object files cargo clean Remove the target directory cargo new Create a new cargo package cargo add Add dependencies to a manifest file
Commands: cargo build, b Compile the current package cargo check, c Analyze the current package and report errors, but don't build object files cargo clean Remove the target directory cargo new Create a new cargo package cargo add Add dependencies to a manifest file cargo -h --help Prints help information ```