refactor(redirect): Use @std/url and change to "master" (#4)

- Because of the processing URL, not the directory path.
- Redirects to the default branch, not head hash.

deno.json

@@ -15,7 +15,7 @@
     "@std/fmt": "jsr:@std/fmt@0.225.4",
     "@std/http": "jsr:@std/http@0.224.4",
     "@std/http/user-agent": "jsr:@std/http@~0.223/user-agent",
-    "@std/path": "jsr:@std/path@0.225.2"
+    "@std/url": "jsr:@std/url@0.224.1"
   },
   "deploy": {
     "project": "reproxy",

src/libs/redirect.ts

@@ -1,25 +1,23 @@
 import type { RouterContext } from "@oak/oak";
 import { STATUS_CODE } from "@std/http/status";
 import { UserAgent } from "@std/http/user-agent";
-import { join } from "@std/path";
+import { join } from "@std/url";
 import { getRepository } from "./env.ts";
 
 export function redirect<R extends string>(
   ctx: RouterContext<R>,
   userAgent: UserAgent,
-  ref: string = "HEAD"
+  ref: string = "master"
 ): void {
   const repository = getRepository();
-  const url: string =
-    "https://" +
-    join(
-      "github.com",
-      repository.owner,
-      repository.name,
-      "blob",
-      ref,
-      repository.path
-    );
+  const url = join(
+    new URL("https://github.com"),
+    repository.owner,
+    repository.name,
+    "blob",
+    ref,
+    repository.path
+  );
 
   if (userAgent?.browser.name) {
     ctx.response.status = STATUS_CODE.PermanentRedirect;

test/libs/redirect_test.ts

@@ -13,7 +13,7 @@ Deno.test("Redirect Detection", <R extends string>() => {
   assertEquals(ctx.response.status, STATUS_CODE.PermanentRedirect);
   assertEquals(
     ctx.response.headers.get("location"),
-    `https://github.com/${testRepo.owner}/${testRepo.name}/blob/HEAD/${testRepo.path}`
+    `https://github.com/${testRepo.owner}/${testRepo.name}/blob/master/${testRepo.path}`
   );
 });