Merge d66cb9871d into 0bcde15346

listings/ch02-guessing-game-tutorial/no-listing-06-cargo-add/Cargo.lock

@@ -0,0 +1,83 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+checksum = "c9495705279e7140bf035dde1f6e750c162df8b625267cd52cc44e0b156732c8"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+]
+
+[[package]]
+name = "guessing_game"
+version = "0.1.0"
+dependencies = [
+ "rand",
+]
+
+[[package]]
+name = "libc"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "libc",
+ "rand_chacha",
+ "rand_core",
+ "rand_hc",
+]
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+ "rand_core",
+]
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+ "getrandom",
+]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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listings/ch02-guessing-game-tutorial/no-listing-06-cargo-add/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "guessing_game"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

listings/ch02-guessing-game-tutorial/no-listing-06-cargo-add/output.txt

@@ -0,0 +1,18 @@
+$ cargo add rand@0.8.3
+    Updating crates.io index
+      Adding rand v0.8.3 to dependencies.
+             Features:
+             + alloc
+             + getrandom
+             + libc
+             + rand_chacha
+             + rand_hc
+             + std
+             + std_rng
+             - log
+             - nightly
+             - packed_simd
+             - serde
+             - serde1
+             - simd_support
+             - small_rng

listings/ch02-guessing-game-tutorial/no-listing-06-cargo-add/src/main.rs

@@ -0,0 +1,15 @@
+use std::io;
+
+fn main() {
+    println!("Guess the number!");
+
+    println!("Please input your guess.");
+
+    let mut guess = String::new();
+
+    io::stdin()
+        .read_line(&mut guess)
+        .expect("Failed to read line");
+
+    println!("You guessed: {guess}");
+}

src/ch02-00-guessing-game-tutorial.md

@@ -367,6 +367,13 @@ Cargo considers these versions to have public APIs compatible with version
 will still compile with the code in this chapter. Any version 0.9.0 or greater
 is not guaranteed to have the same API as what the following examples use.
 
+Instead of manually adding the dependency by editing the *Cargo.toml* file, we
+can ask Cargo to add the dependency for us, using the `cargo add` command:
+
+```console
+{{#include ../listings/ch02-guessing-game-tutorial/no-listing-06-cargo-add/output.txt}}
+```
+
 Now, without changing any of the code, let’s build the project, as shown in
 Listing 2-2.