Add rcm step (#91)

src/steps/os/unix.rs

@@ -457,6 +457,16 @@ pub fn run_bun(ctx: &ExecutionContext) -> Result<()> {
     ctx.run_type().execute(&bun).arg("upgrade").check_run()
 }
 
+/// Update dotfiles with `rcm(7)`.
+///
+/// See: <https://github.com/thoughtbot/rcm>
+pub fn run_rcm(ctx: &ExecutionContext) -> Result<()> {
+    let rcup = require("rcup")?;
+
+    print_separator("rcm");
+    ctx.run_type().execute(rcup).arg("-v").check_run()
+}
+
 pub fn reboot() {
     print!("Rebooting...");
     Command::new("sudo").arg("reboot").spawn().unwrap().wait().unwrap();