| 1 | export function requireNewCopy(moduleNameOrPath: string): any {
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| 2 | // Store a reference to whatever's in the 'require' cache,
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| 3 | // so we don't permanently destroy it, and then ensure there's
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| 4 | // no cache entry for this module
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| 5 | const resolvedModule = require.resolve(moduleNameOrPath);
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| 6 | const wasCached = resolvedModule in require.cache;
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| 7 | let cachedInstance;
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| 8 | if (wasCached) {
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| 9 | cachedInstance = require.cache[resolvedModule];
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| 10 | delete require.cache[resolvedModule];
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| 11 | }
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| 12 |
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| 13 | try {
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| 14 | // Return a new copy
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| 15 | return require(resolvedModule);
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| 16 | } finally {
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| 17 | // Restore the cached entry, if any
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| 18 | if (wasCached) {
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| 19 | require.cache[resolvedModule] = cachedInstance;
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| 20 | }
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| 21 | }
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| 22 | }
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