Fix autoImport

Author: rbuckton

Diff for: deploy/createTypesPackages.js

@@ -17,43 +17,43 @@ export const packages = [
     description: "Types for the DOM, and other web technologies in browsers",
     readme: "./readmes/web.md",
     files: [
-      { from: "../generated/dom.generated.d.ts", to: "index.d.ts" },
+      { from: "../generated/dom.generated.d.ts", to: "index.d.ts", index: true },
       { from: "../generated/dom.iterable.generated.d.ts", to: "iterable.d.ts", autoImport: true },
-      { from: "../generated/ts5.5/dom.generated.d.ts", to: "ts5.5/index.d.ts" },
-      { from: "../generated/ts5.5/dom.iterable.generated.d.ts", to: "ts5.5/iterable.d.ts", autoImport: true },
+      { from: "../generated/ts5.5/dom.generated.d.ts", to: "ts5.5/index.d.ts", index: true, group: "ts5.5" },
+      { from: "../generated/ts5.5/dom.iterable.generated.d.ts", to: "ts5.5/iterable.d.ts", autoImport: true, group: "ts5.5" },
     ],
   },
   {
     name: "@types/serviceworker",
     description: "Types for the global scope of Service Workers",
     readme: "./readmes/serviceworker.md",
     files: [
-      { from: "../generated/serviceworker.generated.d.ts", to: "index.d.ts" },
-      { from: "../generated/serviceworker.iterable.generated.d.ts", to: "iterable.d.ts", autoImport: true  },
-      { from: "../generated/ts5.5/serviceworker.generated.d.ts", to: "ts5.5/index.d.ts" },
-      { from: "../generated/ts5.5/serviceworker.iterable.generated.d.ts", to: "ts5.5/iterable.d.ts", autoImport: true  },
+      { from: "../generated/serviceworker.generated.d.ts", to: "index.d.ts", index: true },
+      { from: "../generated/serviceworker.iterable.generated.d.ts", to: "iterable.d.ts", autoImport: true },
+      { from: "../generated/ts5.5/serviceworker.generated.d.ts", to: "ts5.5/index.d.ts", index: true, group: "ts5.5" },
+      { from: "../generated/ts5.5/serviceworker.iterable.generated.d.ts", to: "ts5.5/iterable.d.ts", autoImport: true , group: "ts5.5" },
     ],
   },
   {
     name: "@types/audioworklet",
     description: "Types for the global scope of Audio Worklets",
     readme: "./readmes/audioworklet.md",
     files: [
-      { from: "../generated/audioworklet.generated.d.ts", to: "index.d.ts" },
-      { from: "../generated/audioworklet.iterable.generated.d.ts", to: "iterable.d.ts", autoImport: true  },
-      { from: "../generated/ts5.5/audioworklet.generated.d.ts", to: "ts5.5/index.d.ts" },
-      { from: "../generated/ts5.5/audioworklet.iterable.generated.d.ts", to: "ts5.5/iterable.d.ts", autoImport: true  },
+      { from: "../generated/audioworklet.generated.d.ts", to: "index.d.ts", index: true },
+      { from: "../generated/audioworklet.iterable.generated.d.ts", to: "iterable.d.ts", autoImport: true },
+      { from: "../generated/ts5.5/audioworklet.generated.d.ts", to: "ts5.5/index.d.ts", index: true, group: "ts5.5" },
+      { from: "../generated/ts5.5/audioworklet.iterable.generated.d.ts", to: "ts5.5/iterable.d.ts", autoImport: true , group: "ts5.5" },
     ],
   },
   {
     name: "@types/sharedworker",
     description: "Types for the global scope of Shared Workers",
     readme: "./readmes/sharedworker.md",
     files: [
-      { from: "../generated/sharedworker.generated.d.ts", to: "index.d.ts" },
+      { from: "../generated/sharedworker.generated.d.ts", to: "index.d.ts", index: true },
       { from: "../generated/sharedworker.iterable.generated.d.ts", to: "iterable.d.ts", autoImport: true },
-      { from: "../generated/ts5.5/sharedworker.generated.d.ts", to: "ts5.5/index.d.ts" },
-      { from: "../generated/ts5.5/sharedworker.iterable.generated.d.ts", to: "ts5.5/iterable.d.ts", autoImport: true },
+      { from: "../generated/ts5.5/sharedworker.generated.d.ts", to: "ts5.5/index.d.ts", index: true, group: "ts5.5" },
+      { from: "../generated/ts5.5/sharedworker.iterable.generated.d.ts", to: "ts5.5/iterable.d.ts", autoImport: true, group: "ts5.5" },
     ],
   },
 ];
@@ -67,6 +67,7 @@ import fetch from "node-fetch";
 import { fileURLToPath } from "url";
 import semver from "semver";
 import pkg from "prettier";
+import path from "path";
 const { format } = pkg;
 
 const go = async () => {
@@ -187,16 +188,48 @@ function copyREADME(pkg, pkgJSON, writePath) {
  * @param {URL} packagePath
  */
 function prependAutoImports(pkg, packagePath) {
-  const index = new URL("index.d.ts", packagePath);
-  if (!fs.existsSync(index)) return;
+  /**
+   * @type {Map<string | undefined, typeof pkg.files[number][]>}
+   */
+  const groups = new Map();
+  for (const file of pkg.files) {
+    let files = groups.get(file.group);
+    if (!files) groups.set(file.group, (files = []));
+    files.push(file);
+  }
+  for (const files of groups.values()) {
+    const indexFile = files.find((file) => file.index);
+    if (!indexFile) continue;
+
+    const index = new URL(indexFile.to, packagePath);
+    if (!fs.existsSync(index)) continue;
 
-  const toPrepend = pkg.files
-    .filter((f) => !!f.autoImport)
-    .map((f) => `/// <reference path="./${f.to}" />`)
-    .join("\n");
+    const toPrepend = files
+      .filter((f) => !!f.autoImport)
+      .map((f) => relativeUrl(index, new URL(f.to, packagePath)))
+      .map((f) => `/// <reference path="${f}" />`)
+      .join("\n");
+
+    if (toPrepend) {
+      const indexText = fs.readFileSync(index, "utf-8");
+      fs.writeFileSync(index, `${toPrepend}\n\n${indexText}`);
+    }
+  }
+}
 
-  let indexText = fs.readFileSync(index, "utf-8");
-  fs.writeFileSync(index, `${toPrepend}\n\n${indexText}`);
+/**
+ * @param {URL} from
+ * @param {URL} to
+ */
+function relativeUrl(from, to) {
+  if (from.origin !== to.origin) return to.toString();
+  if (!from.pathname.endsWith("/")) from = new URL("./", from);
+  const relative = path.posix.relative(from.pathname, to.pathname);
+  return path.isAbsolute(relative) ||
+    relative.startsWith("../") ||
+    relative.startsWith("./")
+    ? relative
+    : `./${relative}`;
 }
 
 /**