pluginagentmarketplace Cargo & Ecosystem Skill
Master Rust's build system, package manager, and development tools.
Quick Start
Essential Commands
# Project management
cargo new my_project # Create binary project
cargo new my_lib --lib # Create library project
cargo init # Initialize in existing dir
# Build & Run
cargo build # Debug build
cargo build --release # Optimized build
cargo run # Build and run
cargo run --release # Optimized run
# Testing
cargo test # Run all tests
cargo test test_name # Run specific test
cargo test -- --nocapture # Show output
# Quality
cargo fmt # Format code
cargo clippy # Lint code
cargo doc --open # Generate docs
Cargo.toml Configuration
[package]
name = "my-app"
version = "0.1.0"
edition = "2021"
rust-version = "1.75"
authors = ["You <you@example.com>"]
description = "A sample application"
license = "MIT"
repository = "https://github.com/you/my-app"
[dependencies]
tokio = { version = "1", features = ["full"] }
serde = { version = "1.0", features = ["derive"] }
thiserror = "1.0"
[dev-dependencies]
criterion = { version = "0.5", features = ["html_reports"] }
proptest = "1.0"
[profile.release]
lto = true
codegen-units = 1
opt-level = 3
[[bin]]
name = "my-app"
path = "src/main.rs"
[[bench]]
name = "my_benchmark"
harness = false
Testing
Unit Tests
pub fn add(a: i32, b: i32) -> i32 {
a + b
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_add() {
assert_eq!(add(2, 2), 4);
}
#[test]
#[should_panic(expected = "overflow")]
fn test_panic() {
// Expected to panic
}
#[test]
#[ignore]
fn slow_test() {
// Run with: cargo test -- --ignored
}
}
Integration Tests
// tests/integration_test.rs
use my_crate::public_function;
#[test]
fn test_public_api() {
assert!(public_function().is_ok());
}
Benchmarks
// benches/my_benchmark.rs
use criterion::{criterion_group, criterion_main, Criterion};
fn benchmark(c: &mut Criterion) {
c.bench_function("my_function", |b| {
b.iter(|| my_function())
});
}
criterion_group!(benches, benchmark);
criterion_main!(benches);
Development Tools
Code Quality
# Install components
rustup component add rustfmt clippy
# Format
cargo fmt
cargo fmt -- --check # CI check
# Lint
cargo clippy
cargo clippy -- -D warnings # Strict mode
cargo clippy --fix # Auto-fix
Recommended Tools
# Install useful tools
cargo install cargo-watch # Auto-rebuild
cargo install cargo-edit # cargo add/rm
cargo install cargo-nextest # Fast parallel tests
cargo install cargo-audit # Security check
cargo install cargo-bloat # Binary size analysis
rustfmt.toml
edition = "2021"
max_width = 100
use_small_heuristics = "Max"
tab_spaces = 4
.cargo/config.toml
[alias]
t = "test"
c = "clippy"
b = "build --release"
[build]
rustflags = ["-D", "warnings"]
Workspaces
# Root Cargo.toml
[workspace]
members = [
"core",
"cli",
"server",
]
[workspace.dependencies]
tokio = { version = "1", features = ["full"] }
serde = { version = "1", features = ["derive"] }