testthat-cli R

Cargo.toml

[package]
name = "testthat-cli"
version = "0.1.0"
edition = "2021"

[dependencies]
argh = "0.1.12"

main.rs

use argh::FromArgs;
use std::process::Command;

#[derive(Clone, Debug, FromArgs)]
/// Test an R package using testthat
struct TestThatDir {
    /// path to a package's directory
    #[argh(positional, default = r#"String::from(".")"#)]
    dir: String,
}

fn main() {
    let ttd: TestThatDir = argh::from_env();
    let devtools_call = format!("devtools::test('{}')", ttd.dir);
    let _ = Command::new("R")
        .args(["--quiet", "-e", &devtools_call])
        .spawn();
}