Change isolated loadurl process script to ESM

Signed-off-by: Steve Fan <[email protected]>

src/_loadurl.js → src/_loadurl.mjs

@@ -5,9 +5,10 @@
 // ctors). so we utilize `spawnSync` to spawn this program as a child process.
 // alternatively we could have use `curl` but this is more portable.
 
-const { http, https } = require('follow-redirects');
-const { parse } = require('url');
-const fs = require('fs');
+import { http, https } from 'follow-redirects';
+import { parse } from 'url';
+import { lstatSync, createReadStream } from 'fs';
+import process from 'node:process'
 
 const url = process.argv[2];
 if (!url) {
@@ -16,25 +17,25 @@ if (!url) {
 }
 
 try {
-  if (fs.lstatSync(url).isFile()) {
-    fs.createReadStream(url).pipe(process.stdout);
+  if (lstatSync(url).isFile()) {
+    createReadStream(url).pipe(process.stdout);
   }
 } catch (err) {
   const purl = parse(url);
 
   if (!purl.protocol) {
     throw new Error(`unable to determine protocol from url: ${url}`);
   }
-  
+
   const client = getHttpClient(purl.protocol);
   const get = client.get(url, response => {
     if (response.statusCode !== 200) {
       throw new Error(`${response.statusCode} response from http get: ${response.statusMessage}`);
     }
-  
+
     response.on('data', chunk => process.stdout.write(chunk));
   });
-  
+
   get.once('error', err => {
     throw new Error(`http error: ${err.message}`);
   });

src/yaml.ts

@@ -82,7 +82,7 @@ export class Yaml {
       if (obj === undefined) { continue; }
       if (obj === null) { continue; }
       if (Array.isArray(obj) && obj.length === 0) { continue; }
-      if (typeof(obj) === 'object' && Object.keys(obj).length === 0) { continue; }
+      if (typeof (obj) === 'object' && Object.keys(obj).length === 0) { continue; }
 
       result.push(obj);
     }
@@ -103,7 +103,7 @@ export class Yaml {
  * This method spawns a child process in order to perform an http call synchronously.
  */
 function loadurl(url: string): string {
-  const script = path.join(__dirname, '_loadurl.js');
+  const script = path.join(__dirname, '_loadurl.mjs');
   return execFileSync(process.execPath, [script, url], {
     encoding: 'utf-8',
     maxBuffer: MAX_DOWNLOAD_BUFFER,