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30 lines
940 B
30 lines
940 B
4 years ago
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"use strict";
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/*
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Copyright 2018 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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/**
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* Looks for a placeholder string in originalFilename, and replaces it with a
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* value provided.
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*
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* @param {string} originalFilename
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* @param {string} manifestHash
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* @return {string}
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*
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* @private
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*/
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module.exports = (originalFilename, manifestHash) => {
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const manifestHashPlaceholder = '[manifestHash]';
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const replacedFilename = originalFilename.replace(manifestHashPlaceholder, manifestHash);
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if (replacedFilename === originalFilename) {
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throw new Error(`Your configured precacheManifestFilename option, ` + `'${originalFilename}', must contain the placeholder string ` + `'${manifestHashPlaceholder}' somewhere. For example, ` + `'precache-manifest.${manifestHashPlaceholder}.js'`);
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}
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return replacedFilename;
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};
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