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#!/usr/bin/env deno run --allow-read --allow-run --allow-envasync function main() {  if (Deno.args.length < 2) {    console.error(`deno-dev: watch files and restart process if any file changed.    USAGE:   dev.ts ...[GLOB_PATTERNS] [RESTART_COMMAND}  EXAMPLE:   dev.ts site/ main.ts      `);    Deno.exit(1);  }  const paths = Deno.args.slice(0, Deno.args.length - 1);  const cmd = Deno.args[Deno.args.length - 1];  let proc: Deno.Process;  let replacing = false;  function replaceProcess() {    if (proc) {      console.log(`Restarting...`);      proc.close();    }    proc = Deno.run({ cmd: [cmd] });  }  async function watch() {    for await (const ev of Deno.watchFs(paths)) {      if (ev.kind == "modify" || ev.kind == "create" || ev.kind == "remove") {        const paths = ev.paths.filter((p) =>          !!p.match(/\.tsx?$/) && !p.endsWith(".d.ts")        );        if (paths.length == 0) continue;        const compile = Deno.run({ cmd: [Deno.execPath(), "cache", ...paths] });        const { code } = await compile.status();        if (code === 0) {          replaceProcess();        }      }    }  }  console.log(`Starting...`);  replaceProcess();  watch();}main();