Inline repo

packages/eslint-define-config/scripts/json-schema-to-ts.ts

@@ -0,0 +1,58 @@
+import type { JSONSchema4 } from 'json-schema';
+import { compile } from 'json-schema-to-typescript';
+
+/**
+ * Remove unnecessary comments that are generated by `json-schema-to-typescript`.
+ */
+function cleanJsDoc(content: string): string {
+  const patterns = [
+    /\* This interface was referenced by .+ JSON-Schema definition/,
+    /\* via the `.+` "/,
+  ];
+
+  return content
+    .split('\n')
+    .filter(line => !patterns.some(ignoredLine => ignoredLine.test(line)))
+    .join('\n');
+}
+
+/**
+ * Replace some types that are generated by `json-schema-to-typescript`.
+ */
+export function patchTypes(content: string): string {
+  const replacements: [RegExp, string][] = [
+    [
+      /\(string & \{\s*\[k: string\]: any\s*\} & \{\s*\[k: string\]: any\s*\}\)\[\]/,
+      'string[]',
+    ],
+  ];
+
+  for (const [pattern, replacement] of replacements) {
+    content = content.replace(pattern, replacement);
+  }
+
+  return content;
+}
+
+/**
+ * Generate a type from the given JSON schema.
+ */
+export async function generateTypeFromSchema(
+  schema: JSONSchema4,
+  typeName: string,
+): Promise<string> {
+  schema = JSON.parse(
+    JSON.stringify(schema).replace(/#\/items\/0\/\$defs\//g, '#/$defs/'),
+  );
+  const result = await compile(schema, typeName, {
+    format: false,
+    bannerComment: '',
+    style: {
+      singleQuote: true,
+      trailingComma: 'all',
+    },
+    unknownAny: false,
+  });
+
+  return patchTypes(cleanJsDoc(result));
+}