Add vanilla datapack dependency

packages/core/package.json

@@ -22,12 +22,14 @@
     "globby": "^11.0.4",
     "pako": "^2.0.4",
     "rfdc": "^1.3.0",
-    "vscode-languageserver-textdocument": "^1.0.4"
+    "vscode-languageserver-textdocument": "^1.0.4",
+    "whatwg-url": "^14.0.0"
   },
   "devDependencies": {
     "@types/decompress": "^4.2.3",
     "@types/follow-redirects": "^1.14.1",
-    "@types/pako": "^2.0.0"
+    "@types/pako": "^2.0.0",
+    "@types/whatwg-url": "^11.0.4"
   },
   "publishConfig": {
     "access": "public"

packages/core/src/common/externals/NodeJsExternals.ts

@@ -142,8 +142,13 @@ Object.freeze(NodeJsExternals)
  * @returns A {@link fs.PathLike}.
  */
 function toFsPathLike(path: FsLocation): fs.PathLike {
+	if (path instanceof Uri) {
+		// Convert WHATWG URL to string so that it will be converted
+		// to Node.js URL by the next if-block.
+		path = path.toString()
+	}
 	if (typeof path === 'string' && path.startsWith('file:')) {
-		return new Uri(path)
+		return new url.URL(path)
 	}
 	return path
 }
@@ -155,7 +160,8 @@ function toPath(path: FsLocation): string {
 	return uriToPath(path)
 }
 
-const uriToPath = (uri: string | Uri) => url.fileURLToPath(uri)
+const uriToPath = (uri: string | Uri) =>
+	url.fileURLToPath(uri instanceof Uri ? new url.URL(uri.toString()) : uri)
 const uriFromPath = (path: string) => url.pathToFileURL(path).toString()
 
 class ChokidarWatcherWrapper extends EventEmitter implements FsWatcher {

packages/core/src/common/externals/index.ts

@@ -84,7 +84,7 @@ export interface ExternalFileSystem {
 }
 
 /**
- * A file file URI string or a URI object.
+ * A file URI string or a URI object.
  */
 export type FsLocation = string | Uri
 

packages/core/src/common/util.ts

@@ -1,10 +1,21 @@
 import externalBinarySearch from 'binary-search'
 import rfdc from 'rfdc'
+import { URL } from 'whatwg-url'
 import type { AstNode } from '../node/index.js'
 import type { ProcessorContext } from '../service/index.js'
 import type { Externals } from './externals/index.js'
 import type { DeepReadonly } from './ReadonlyProxy.js'
 
+// Spyglass uses the URL class provided by the
+// [spec](https://url.spec.whatwg.org/)-compliant `whatwg-url` package instead
+// of the broken one shipped with browsers that do not parse non-special scheme
+// URLs with hosts properly.
+//
+// * [Chromium bug](https://issues.chromium.org/issues/40587286)
+// * [FireFox bug](https://bugzilla.mozilla.org/show_bug.cgi?id=1374505)
+//
+// We use the name "URI" instead of "URL" when possible, since it is what
+// LSP has chosen to use for the string that uniquely identifies a file.
 export const Uri = URL
 export type Uri = URL
 

packages/core/src/service/Config.ts

@@ -321,7 +321,10 @@ export namespace SymbolLinterConfig {
 export const VanillaConfig: Config = {
 	env: {
 		dataSource: 'GitHub',
-		dependencies: ['@vanilla-mcdoc'],
+		dependencies: [
+			'@vanilla-datapack',
+			'@vanilla-mcdoc',
+		],
 		feature: {
 			codeActions: true,
 			colors: true,