flow like the river

BACK_BACK/node_modules/parcel-bundler/lib/assets/JSONLDAsset.js

@@ -0,0 +1,76 @@
+"use strict";
+
+const urlJoin = require('../utils/urlJoin');
+
+const isURL = require('../utils/is-url');
+
+const Asset = require('../Asset');
+
+const logger = require('@parcel/logger'); // A list of all attributes in a schema that may produce a dependency
+// Based on https://schema.org/ImageObject
+// Section "Instances of ImageObject may appear as values for the following properties"
+
+
+const SCHEMA_ATTRS = ['logo', 'photo', 'image', 'thumbnail', 'screenshot', 'primaryImageOfPage', 'embedUrl', 'thumbnailUrl', 'video', 'contentUrl'];
+
+class JSONLDAsset extends Asset {
+  constructor(name, options) {
+    super(name, options);
+    this.type = 'jsonld';
+  }
+
+  parse(content) {
+    return JSON.parse(content.trim());
+  }
+
+  collectDependencies() {
+    if (!this.options.publicURL.startsWith('http')) {
+      logger.warn("Please specify a publicURL using --public-url, otherwise schema assets won't be collected");
+      return;
+    }
+
+    for (let schemaKey in this.ast) {
+      if (SCHEMA_ATTRS.includes(schemaKey)) {
+        this.collectFromKey(this.ast, schemaKey);
+        this.isAstDirty = true;
+      }
+    }
+  } // Auxiliary method for collectDependencies() to use for recursion
+
+
+  collectFromKey(schema, schemaKey) {
+    if (!schema.hasOwnProperty(schemaKey)) {
+      return;
+    } // values can be strings or objects
+    // if it's not a string, it should have a url
+
+
+    if (typeof schema[schemaKey] === 'string') {
+      let assetPath = this.addURLDependency(schema[schemaKey]);
+
+      if (!isURL(assetPath)) {
+        // paths aren't allowed, values must be urls
+        assetPath = urlJoin(this.options.publicURL, assetPath);
+      }
+
+      schema[schemaKey] = assetPath;
+    } else if (Array.isArray(schema[schemaKey])) {
+      Object.keys(schema[schemaKey]).forEach(i => {
+        this.collectFromKey(schema[schemaKey], i);
+      });
+    } else {
+      this.collectFromKey(schema[schemaKey], 'url');
+    }
+  }
+
+  generate() {
+    if (this.options.production) {
+      return JSON.stringify(this.ast);
+    } else {
+      return JSON.stringify(this.ast, null, 2);
+    }
+  }
+
+}
+
+module.exports = JSONLDAsset;