refactor: structuredClonePolyfill to helpers (#1250)

Signed-off-by: Jan Kowalleck <jan.kowalleck@gmail.com>

src/_helpers.ts

@@ -20,6 +20,10 @@ Copyright (c) OWASP Foundation. All Rights Reserved.
 import { readFileSync, writeSync } from 'fs'
 import { extname, parse } from 'path'
 
+export const structuredClonePolyfill: <T>(value: T) => T = typeof structuredClone === 'function'
+  ? structuredClone
+  : function (value) { return JSON.parse(JSON.stringify(value)) }
+
 export function loadJsonFile (path: string): any {
   return JSON.parse(readFileSync(path, 'utf8'))
   // may be replaced by `require(f, { with: { type: "json" } })`

src/builders.ts

@@ -23,7 +23,13 @@ import * as normalizePackageData from 'normalize-package-data'
 import * as path from 'path'
 import { join } from 'path'
 
-import { getMimeForLicenseFile, isString, loadJsonFile, tryRemoveSecretsFromUrl } from './_helpers'
+import {
+  getMimeForLicenseFile,
+  isString,
+  loadJsonFile,
+  structuredClonePolyfill,
+  tryRemoveSecretsFromUrl
+} from './_helpers'
 import { makeNpmRunner, type runFunc } from './npmRunner'
 import { PropertyNames, PropertyValueBool } from './properties'
 import { versionCompare } from './versionCompare'
@@ -714,7 +720,3 @@ export class TreeBuilder {
     }
   }
 }
-
-const structuredClonePolyfill: <T>(value: T) => T = typeof structuredClone === 'function'
-  ? structuredClone
-  : function (value) { return JSON.parse(JSON.stringify(value)) }