58 lines
1.6 KiB
JavaScript
58 lines
1.6 KiB
JavaScript
/**
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* Copyright (c) HashiCorp, Inc.
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* SPDX-License-Identifier: MPL-2.0
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*/
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// @ts-check
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const WILDCARD_GLOB = '*';
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/**
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*
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* @param {string} pattern
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* @param {string} comparable
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* @example matchGlob('foo', 'foo') // true
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* @example matchGlob('foo', 'bar') // false
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* @example matchGlob('foo*', 'footbar') // true
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* @example matchGlob('foo*', 'bar') // false
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* @example matchGlob('*foo', 'foobar') // false
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* @example matchGlob('*foo', 'barfoo') // true
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* @example matchGlob('foo*bar', 'footbar') // true
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* @returns {boolean}
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*/
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export default function matchGlob(pattern, comparable) {
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const parts = pattern?.split(WILDCARD_GLOB);
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const hasLeadingGlob = pattern?.startsWith(WILDCARD_GLOB);
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const hasTrailingGlob = pattern?.endsWith(WILDCARD_GLOB);
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const lastPartOfPattern = parts[parts.length - 1];
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const isPatternWithoutGlob = parts.length === 1 && !hasLeadingGlob;
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if (!pattern || !comparable || isPatternWithoutGlob) {
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return pattern === comparable;
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}
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if (pattern === WILDCARD_GLOB) {
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return true;
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}
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let subStringToMatchOn = comparable;
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for (let i = 0; i < parts.length; i++) {
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const part = parts[i];
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const idx = subStringToMatchOn?.indexOf(part);
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const doesStringIncludeSubPattern = idx > -1;
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const doesMatchOnFirstSubpattern = idx === 0;
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if (i === 0 && !hasLeadingGlob && !doesMatchOnFirstSubpattern) {
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return false;
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}
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if (!doesStringIncludeSubPattern) {
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return false;
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}
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subStringToMatchOn = subStringToMatchOn.slice(0, idx + comparable.length);
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}
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return hasTrailingGlob || comparable.endsWith(lastPartOfPattern);
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}
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