Execute a Deno script with rustyscript

[Lilit0x]

Hi there, great crate!!
Quick question, I am trying to get a Deno script working, but it seems that the global Deno object does not seem to be present resulting in errors. For more context, here is the simple script I try to run

const dirToWatch = "./";

await Deno.mkdir(dirToWatch, { recursive: true });

async function watchDirectory() {
  const watcher = Deno.watchFs(dirToWatch);

  console.log(`Watching for file changes in ${dirToWatch}...`);

  for await (const event of watcher) {
    for (const path of event.paths) {
      if (event.kind === "create") {
        console.log(`New file added: ${path}`);
        try {
          const command = new Deno.Command("wc", {
            args: ["-l", path],
            stdout: "piped",
            stderr: "piped",
          });

          const { stdout, stderr } = await command.output();

          if (stderr.length > 0) {
            console.error(
              `Error in shell command: ${new TextDecoder().decode(stderr)}`,
            );
          } else {
            console.log(new TextDecoder().decode(stdout));
          }
        } catch (err) {
          console.error(`Error executing shell command: ${err.message}`);
        }
      }
    }
  }
}

watchDirectory();

Here is my Rust code executing it:

use clap::Args;
use rustyscript::{json_args, Module, Runtime};
use serde::Serialize;

#[derive(Debug, Args, Clone, Serialize)]
pub struct DenoRunArgs {
    pub file_path: String,
}

impl DenoRunArgs {
    pub async fn run(&self) -> anyhow::Result<()> {
        let file_path = self.file_path.clone();
        tokio::task::spawn_blocking(move || {
            let module = Module::load(&file_path)?;
            Runtime::execute_module(&module, vec![], Default::default(), json_args!())
        })
        .await??;
        Ok(())
    }
}

I get the following error

Error: TypeError: Deno.mkdir is not a function
    at file:///home/file_watcher.ts:3:12

[rscarson]

You're in luck! That part of the deno globals is fully populated as of today on master

But you'll need to turn on the fs feature:

https://rscarson.github.io/rustyscript-book/extensions/fs.html