Move login JS to a separate file

Mostly so the base URL resolution code can be shared.

ci/build/build-code-server.sh

@@ -21,6 +21,7 @@ main() {
     --public-url "." \
     --out-dir dist \
     $([[ $MINIFY ]] || echo --no-minify) \
+    src/browser/login.ts \
     src/browser/register.ts \
     src/browser/serviceWorker.ts
 }

ci/dev/watch.ts

@@ -164,7 +164,11 @@ class Watcher {
 
   private createBundler(out = "dist"): Bundler {
     return new Bundler(
-      [path.join(this.rootPath, "src/browser/register.ts"), path.join(this.rootPath, "src/browser/serviceWorker.ts")],
+      [
+        path.join(this.rootPath, "src/browser/login.ts"),
+        path.join(this.rootPath, "src/browser/register.ts"),
+        path.join(this.rootPath, "src/browser/serviceWorker.ts"),
+      ],
       {
         outDir: path.join(this.rootPath, out),
         cacheDir: path.join(this.rootPath, ".cache"),

src/browser/pages/login.html

@@ -47,10 +47,5 @@
     </div>
   </body>
   <script data-cfasync="false" src="{{CS_STATIC_BASE}}/dist/register.js"></script>
-  <script>
-    const parts = window.location.pathname.replace(/^\//g, "").split("/")
-    parts[parts.length - 1] = "{{BASE}}"
-    const url = new URL(window.location.origin + "/" + parts.join("/"))
-    document.getElementById("base").value = url.pathname
-  </script>
+  <script data-cfasync="false" src="{{CS_STATIC_BASE}}/dist/login.js"></script>
 </html>

src/browser/pages/login.ts

@@ -0,0 +1,7 @@
+import { getOptions } from "../../common/util"
+
+const options = getOptions()
+const el = document.getElementById("base") as HTMLInputElement
+if (el) {
+  el.value = options.base
+}