Run nix build.

src/nix_util/high_level.rs

@@ -0,0 +1,58 @@
+use std::ffi::OsStr;
+use std::ffi::OsString;
+use std::path::Path;
+
+use tokio::process::Command;
+
+use crate::error::CustomError;
+
+pub(crate) async fn nixos_build_target<B, F, A>(
+    build_path: B,
+    flake_path: F,
+    attr: A,
+) -> Result<(), CustomError>
+where
+    B: AsRef<Path>,
+    F: AsRef<Path>,
+    A: AsRef<str>,
+{
+    let reference = {
+        let path = AsRef::<OsStr>::as_ref(flake_path.as_ref());
+        let attr = attr.as_ref();
+        let mut reference = OsString::with_capacity(path.len() + attr.len() + 1);
+        reference.push(path);
+        reference.push("#");
+        reference.push(attr);
+        reference
+    };
+
+    // nixos-rebuild build --show-trace --sudo --max-jobs "$JOBS" --flake "$DIR/../../#odo" --log-format internal-json -v "${@}"
+    let mut command = Command::new("nixos-rebuild");
+    command.current_dir(build_path);
+    command.args(&[
+        "build",
+        "--show-trace",
+        "--sudo",
+        "--max-jobs",
+        "1",
+        "--log-format",
+        "internal-json",
+        "-v",
+    ]);
+    command.arg("--flake");
+    command.arg(reference);
+    command.kill_on_drop(true);
+
+    let mut child = command.spawn()?;
+    let status = child.wait().await?;
+    if !status.success() {
+        return Err("Nixos rebuild failed.".into());
+    }
+
+    // tokio::spawn(async move {
+    //     let status = child.wait().await.expect("mpv encountered an error");
+    //     println!("mpv status was: {}", status);
+    // });
+
+    Ok(())
+}