include bundled schemas 2020-12 & 2019-09 (#294)

Author: aeschli

build/bundle-schemas.cjs

@@ -0,0 +1,70 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+const fs = require('fs').promises;
+const Bundler = require("@hyperjump/json-schema-bundle");
+
+(async function () {
+    bundle(`https://json-schema.org/draft/2019-09/schema`, 'draft09');
+    bundle(`https://json-schema.org/draft/2020-12/schema`, 'draft12');
+}());
+
+async function bundle(uri, filename) {
+    const metaSchema = await Bundler.get(uri);
+    const bundle = await Bundler.bundle(metaSchema);
+    const jsonified = JSON.stringify(bundle, null, 2).replace(/"undefined": ""/g, '"$dynamicAnchor": "meta"');
+    const jsified = 'export default ' + printObject(JSON.parse(jsonified));
+    fs.writeFile(`./${filename}.json`, jsonified, 'utf8');
+    fs.writeFile(`./${filename}.js`, jsified, 'utf8');
+}
+
+function printLiteral(value) {
+    if (typeof value === 'string') {
+        return `'${value}'`;
+    }
+    return value;
+}
+
+function printKey(value) {
+    if (value.match(/^[a-zA-Z_$][a-zA-Z0-9_$]*$/)) {
+        return `${value}`;
+    }
+    return `'${value}'`;
+}
+
+function indent(level) {
+    return '\t'.repeat(level);
+}
+
+function printObject(obj, indentLevel = 0) {
+    const result = [];
+    if (Array.isArray(obj)) {
+        result.push(`[`);
+        for (const item of obj) {
+            if (typeof item === 'object' && item !== null) {
+                result.push(`${indent(indentLevel + 1)}${printObject(item, indentLevel + 1)},`);
+            } else {
+                result.push(`${indent(indentLevel + 1)}${printLiteral(item)},`);
+            }
+        }
+        result.push(`${indent(indentLevel)}]`);
+        return result.join('\n');
+    }
+    if (obj === null) {
+        result.push(`null`);
+        return result.join('\n');
+    }
+
+    result.push(`{`);
+    for (const [key, value] of Object.entries(obj)) {
+        if (typeof value === 'object' && value !== null) {
+            result.push(`${indent(indentLevel + 1)}${printKey(key)}: ${printObject(value, indentLevel + 1)},`);
+        } else {
+            result.push(`${indent(indentLevel + 1)}${printKey(key)}: ${printLiteral(value)},`);
+        }
+    }
+    result.push(`${indent(indentLevel)}}`);
+    return result.join('\n');
+}