flagon-io/hello

public

Greets people from the command line. The sample repository for g1t.

Greet people from the command line

syntaqxcommitted 4d agoThe first commitBrowse files

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1	+	[package]
2	+	name = "hello"
3	+	version = "0.1.0"
4	+	edition = "2021"
5	+	description = "Greets people from the command line."
6	+	license = "MIT"

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1	+	# hello
2	+
3	+	Greets people from the command line.
4	+
5	+	```sh
6	+	$ cargo run -- Ada
7	+	Hello, Ada!
8	+	```
9	+
10	+	With no name it greets whoever is signed in.
11	+
12	+	## Develop
13	+
14	+	```sh
15	+	cargo test
16	+	```

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1	+	//! Greetings.
2	+
3	+	/// The greeting for `name`.
4	+	pub fn greeting(name: &str) -> String {
5	+	format!("Hello, {name}!")
6	+	}
7	+
8	+	#[cfg(test)]
9	+	mod tests {
10	+	use super::*;
11	+
12	+	#[test]
13	+	fn greets_by_name() {
14	+	assert_eq!(greeting("Ada"), "Hello, Ada!");
15	+	}
16	+	}

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1	+	use std::env;
2	+
3	+	use hello::greeting;
4	+
5	+	fn main() {
6	+	// The name given, or whoever is signed in.
7	+	let name = env::args()
8	+	.nth(1)
9	+	.or_else(\|\| env::var("USER").ok())
10	+	.unwrap_or_else(\|\| "world".to_owned());
11	+	println!("{}", greeting(&name));
12	+	}