From 3222264c4469577867120dbf36cd32ca39c994c0 Mon Sep 17 00:00:00 2001
From: Dominik Moritz <domoritz@gmail.com>
Date: Mon, 18 Nov 2024 20:00:18 -0500
Subject: [PATCH] use dynamic import

---
 bin/vl2vg                         |  4 ++--
 scripts/build-normalized-examples | 21 +++++++++++----------
 2 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/bin/vl2vg b/bin/vl2vg
index d15cc1f3ef..52f93ab7d0 100755
--- a/bin/vl2vg
+++ b/bin/vl2vg
@@ -4,7 +4,6 @@
 
 const {createWriteStream} = require('fs');
 const vegaLite = require('..');
-const compactStringify = require('json-stringify-pretty-compact');
 const read = require('./read');
 const args = require('./args');
 
@@ -13,13 +12,14 @@ const arg = args('vega');
 // load spec, compile vg spec
 read(arg._[0]).then(text => compile(JSON.parse(text)));
 
-function compile(vlSpec) {
+async function compile(vlSpec) {
   // @ts-ignore
   const vgSpec = vegaLite.compile(vlSpec).spec;
 
   const file = arg._[1] || null;
   const out = file ? createWriteStream(file) : process.stdout;
   if (arg.p) {
+    const compactStringify = (await import('json-stringify-pretty-compact')).default;
     out.write(compactStringify(vgSpec) + '\n');
   } else {
     out.write(JSON.stringify(vgSpec) + '\n');
diff --git a/scripts/build-normalized-examples b/scripts/build-normalized-examples
index 61eed3b968..b2663828d9 100755
--- a/scripts/build-normalized-examples
+++ b/scripts/build-normalized-examples
@@ -12,15 +12,17 @@
 const fs = require('fs');
 const vl = require('../build/vega-lite');
 const stableStringify = require('fast-json-stable-stringify');
-const compactStringify = require('json-stringify-pretty-compact');
 
 const DIR = __dirname + '/..';
 const SPECS = '/examples/specs';
 const examples = fs.readdirSync(DIR + SPECS);
 
-examples.forEach(example => {
-  if (example && example.includes('.vl.json')) {
-    const path = DIR + SPECS + '/' + example;
+async function main() {
+  const {default: compactStringify} = await import('json-stringify-pretty-compact');
+
+  const vlExamples = examples.filter(example => example.includes('.vl.json'));
+  for (const example of vlExamples) {
+    const path = `${DIR + SPECS}/${example}`;
     const spec = JSON.parse(fs.readFileSync(path));
 
     const preNormalized = stableStringify(spec);
@@ -32,11 +34,10 @@ examples.forEach(example => {
       const postNormalizedOutput = compactStringify(fullSpec, null, 2);
       // -8 is cutting .vl.json
       const newFilename = example.slice(0, -8) + '_normalized.vl.json';
-      const newFilenameAndPath = DIR + SPECS + '/normalized/' + newFilename;
-      fs.writeFile(newFilenameAndPath, postNormalizedOutput, err => {
-        if (err) return console.log(err);
-        console.log('Built:', newFilename);
-      });
+      const newFilenameAndPath = `${DIR + SPECS}/normalized/${newFilename}`;
+      fs.writeFileSync(newFilenameAndPath, postNormalizedOutput);
     }
   }
-});
+}
+
+main();