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44 lines
1.1 KiB
JavaScript
44 lines
1.1 KiB
JavaScript
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"use strict";
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/*
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Copyright 2019 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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const errors = require('./errors');
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module.exports = additionalManifestEntries => {
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return manifest => {
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const warnings = [];
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const stringEntries = new Set();
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for (const additionalEntry of additionalManifestEntries) {
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// Warn about either a string or an object that lacks a precache property.
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// (An object with a revision property set to null is okay.)
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if (typeof additionalEntry === 'string') {
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stringEntries.add(additionalEntry);
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} else if (additionalEntry && additionalEntry.revision === undefined) {
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stringEntries.add(additionalEntry.url);
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}
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manifest.push(additionalEntry);
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}
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if (stringEntries.size > 0) {
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let urls = '\n';
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for (const stringEntry of stringEntries) {
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urls += ` - ${stringEntry}\n`;
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}
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warnings.push(errors['string-entry-warning'] + urls);
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}
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return {
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manifest,
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warnings
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};
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};
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};
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