From e24ca0eb3d57067c1a81c6cb018b769c9b57f070 Mon Sep 17 00:00:00 2001
From: Adam Setch <adam.setch@outlook.com>
Date: Mon, 24 Jul 2023 16:07:52 -0400
Subject: [PATCH] feat: add minimatch wrapper to support caching (#23515)
---
lib/util/minimatch.spec.ts | 18 ++++++++++++++++++
lib/util/minimatch.ts | 24 ++++++++++++++++++++++++
2 files changed, 42 insertions(+)
create mode 100644 lib/util/minimatch.spec.ts
create mode 100644 lib/util/minimatch.ts
diff --git a/lib/util/minimatch.spec.ts b/lib/util/minimatch.spec.ts
new file mode 100644
index 0000000000..5414aacdc7
--- /dev/null
+++ b/lib/util/minimatch.spec.ts
@@ -0,0 +1,18 @@
+import { minimatch } from './minimatch';
+
+describe('util/minimatch', () => {
+ it('caches minimatch', () => {
+ expect(minimatch('foo')).toBe(minimatch('foo'));
+ expect(minimatch('foo', { dot: true })).toBe(
+ minimatch('foo', { dot: true })
+ );
+ });
+
+ it('does not cache minimatch', () => {
+ expect(minimatch('foo', undefined, false)).not.toBe(
+ minimatch('foo', undefined, false)
+ );
+ expect(minimatch('foo')).not.toBe(minimatch('foo', undefined, false));
+ expect(minimatch('foo', { dot: true })).not.toBe(minimatch('foo'));
+ });
+});
diff --git a/lib/util/minimatch.ts b/lib/util/minimatch.ts
new file mode 100644
index 0000000000..0d915d8be9
--- /dev/null
+++ b/lib/util/minimatch.ts
@@ -0,0 +1,24 @@
+import { Minimatch, MinimatchOptions } from 'minimatch';
+
+const cache = new Map<string, Minimatch>();
+
+export function minimatch(
+ pattern: string,
+ options?: MinimatchOptions,
+ useCache = true
+): Minimatch {
+ const key = options ? `${pattern}:${JSON.stringify(options)}` : pattern;
+
+ if (useCache) {
+ const cachedResult = cache.get(key);
+ if (cachedResult) {
+ return cachedResult;
+ }
+ }
+
+ const instance = new Minimatch(pattern, options);
+ if (useCache) {
+ cache.set(key, instance);
+ }
+ return instance;
+}
--
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