76 lines
No EOL
2.1 KiB
JavaScript
76 lines
No EOL
2.1 KiB
JavaScript
"use strict";
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const urlJoin = require('../utils/urlJoin');
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const isURL = require('../utils/is-url');
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const Asset = require('../Asset');
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const logger = require('@parcel/logger'); // A list of all attributes in a schema that may produce a dependency
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// Based on https://schema.org/ImageObject
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// Section "Instances of ImageObject may appear as values for the following properties"
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const SCHEMA_ATTRS = ['logo', 'photo', 'image', 'thumbnail', 'screenshot', 'primaryImageOfPage', 'embedUrl', 'thumbnailUrl', 'video', 'contentUrl'];
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class JSONLDAsset extends Asset {
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constructor(name, options) {
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super(name, options);
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this.type = 'jsonld';
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}
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parse(content) {
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return JSON.parse(content.trim());
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}
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collectDependencies() {
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if (!this.options.publicURL.startsWith('http')) {
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logger.warn("Please specify a publicURL using --public-url, otherwise schema assets won't be collected");
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return;
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}
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for (let schemaKey in this.ast) {
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if (SCHEMA_ATTRS.includes(schemaKey)) {
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this.collectFromKey(this.ast, schemaKey);
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this.isAstDirty = true;
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}
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}
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} // Auxiliary method for collectDependencies() to use for recursion
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collectFromKey(schema, schemaKey) {
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if (!schema.hasOwnProperty(schemaKey)) {
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return;
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} // values can be strings or objects
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// if it's not a string, it should have a url
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if (typeof schema[schemaKey] === 'string') {
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let assetPath = this.addURLDependency(schema[schemaKey]);
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if (!isURL(assetPath)) {
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// paths aren't allowed, values must be urls
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assetPath = urlJoin(this.options.publicURL, assetPath);
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}
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schema[schemaKey] = assetPath;
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} else if (Array.isArray(schema[schemaKey])) {
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Object.keys(schema[schemaKey]).forEach(i => {
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this.collectFromKey(schema[schemaKey], i);
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});
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} else {
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this.collectFromKey(schema[schemaKey], 'url');
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}
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}
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generate() {
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if (this.options.production) {
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return JSON.stringify(this.ast);
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} else {
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return JSON.stringify(this.ast, null, 2);
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}
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}
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}
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module.exports = JSONLDAsset; |