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32 lines
781 B
Text
32 lines
781 B
Text
/*
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Copyright 2022 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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// Adapted from https://github.com/lydell/source-map-url/blob/master/source-map-url.js
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// See https://github.com/GoogleChrome/workbox/issues/3019
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const innerRegex = /[#@] sourceMappingURL=([^\s'"]*)/;
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const regex = RegExp(
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'(?:' +
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'/\\*' +
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'(?:\\s*\r?\n(?://)?)?' +
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'(?:' +
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innerRegex.source +
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')' +
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'\\s*' +
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'\\*/' +
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'|' +
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'//(?:' +
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innerRegex.source +
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')' +
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')' +
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'\\s*',
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);
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export function getSourceMapURL(srcContents: string): string | null {
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const match = srcContents.match(regex);
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return match ? match[1] || match[2] || '' : null;
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}
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