/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
const assert = require('assert');
const path = require('path');
const errors = require('./errors');
const filterFiles = require('./filter-files');
const getCompositeDetails = require('./get-composite-details');
const getFileDetails = require('./get-file-details');
const getStringDetails = require('./get-string-details');
module.exports = async ({
dontCacheBustURLsMatching,
globDirectory,
globFollow,
globIgnores,
globPatterns,
globStrict,
manifestTransforms,
maximumFileSizeToCacheInBytes,
modifyURLPrefix,
swDest,
templatedURLs,
}) => {
const warnings = [];
// Initialize to an empty array so that we can still pass something to
// filterFiles() and get a normalized output.
let fileDetails = [];
const fileSet = new Set();
if (globDirectory) {
if (swDest) {
// Ensure that we ignore the SW file we're eventually writing to disk.
globIgnores.push(`**/${path.basename(swDest)}`);
}
try {
fileDetails = globPatterns.reduce((accumulated, globPattern) => {
const globbedFileDetails = getFileDetails({
globDirectory,
globFollow,
globIgnores,
globPattern,
globStrict,
});
globbedFileDetails.forEach((fileDetails) => {
if (fileSet.has(fileDetails.file)) {
return;
}
fileSet.add(fileDetails.file);
accumulated.push(fileDetails);
});
return accumulated;
}, []);
} catch (error) {
// If there's an exception thrown while globbing, then report
// it back as a warning, and don't consider it fatal.
warnings.push(error.message);
}
}
if (templatedURLs) {
for (let url of Object.keys(templatedURLs)) {
assert(!fileSet.has(url), errors['templated-url-matches-glob']);
const dependencies = templatedURLs[url];
if (Array.isArray(dependencies)) {
const details = dependencies.reduce((previous, globPattern) => {
try {
const globbedFileDetails = getFileDetails({
globDirectory,
globFollow,
globIgnores,
globPattern,
globStrict,
});
return previous.concat(globbedFileDetails);
} catch (error) {
const debugObj = {};
debugObj[url] = dependencies;
throw new Error(`${errors['bad-template-urls-asset']} ` +
`'${globPattern}' from '${JSON.stringify(debugObj)}':\n` +
error);
}
}, []);
fileDetails.push(getCompositeDetails(url, details));
} else if (typeof dependencies === 'string') {
fileDetails.push(getStringDetails(url, dependencies));
}
}
}
const filteredFiles = filterFiles({fileDetails,
maximumFileSizeToCacheInBytes, modifyURLPrefix, dontCacheBustURLsMatching,
manifestTransforms});
if (warnings.length > 0) {
filteredFiles.warnings.push(...warnings);
}
return filteredFiles;
};