dora/examples/rust-dataflow/run.rs

use eyre::{bail, Context};
use std::path::Path;

#[tokio::main]
async fn main() -> eyre::Result<()> {
    let root = Path::new(env!("CARGO_MANIFEST_DIR"));
    std::env::set_current_dir(root.join(file!()).parent().unwrap())
        .wrap_err("failed to set working dir")?;

    let dataflow = Path::new("dataflow.yml");
    build_dataflow(dataflow).await?;
    build_package("dora-runtime").await?;

    dora_coordinator::run(dora_coordinator::Args {
        run_dataflow: dataflow.to_owned().into(),
        runtime: Some(root.join("target").join("debug").join("dora-runtime")),
    })
    .await?;

    Ok(())
}

async fn build_dataflow(dataflow: &Path) -> eyre::Result<()> {
    let cargo = std::env::var("CARGO").unwrap();
    let mut cmd = tokio::process::Command::new(&cargo);
    cmd.arg("run");
    cmd.arg("--package").arg("dora-cli");
    cmd.arg("--").arg("build").arg(dataflow);
    if !cmd.status().await?.success() {
        bail!("failed to build dataflow");
    };
    Ok(())
}

async fn build_package(package: &str) -> eyre::Result<()> {
    let cargo = std::env::var("CARGO").unwrap();
    let mut cmd = tokio::process::Command::new(&cargo);
    cmd.arg("build");
    cmd.arg("--package").arg(package);
    if !cmd.status().await?.success() {
        bail!("failed to build {package}");
    };
    Ok(())
}