Replace the media_types dependency with new Deno std APIs.

Fixes #5 .

changelog.md

@@ -9,6 +9,9 @@
 
 ### Patch
 
+- Replaced the [`media_types`](https://deno.land/x/media_types) dependency with
+  new Deno `std` APIs, fixing
+  [#5](https://github.com/jaydenseric/ruck/issues/5).
 - Fixed the test script not exiting with an error status when tests fail.
 - Added a script for finding Ruck’s minimum compatible Deno version.
 - Use a more specific Deno version for the setup Deno step in the GitHub Actions

importMap.json

@@ -2,7 +2,6 @@
   "imports": {
     "free_port/": "https://deno.land/x/[email protected]/",
     "graphql-react/": "https://unpkg.com/[email protected]/",
-    "media_types/": "https://deno.land/x/[email protected]/",
     "puppeteer": "https://deno.land/x/[email protected]/mod.ts",
     "react": "https://esm.sh/[email protected]?dev",
     "react-dom": "https://esm.sh/[email protected]?dev",

publicFileResponse.mjs

@@ -1,7 +1,8 @@
 // @ts-check
 
-import { contentType, lookup } from "media_types/mod.ts";
 import { Status, STATUS_TEXT } from "std/http/http_status.ts";
+import { contentType } from "std/media_types/mod.ts";
+import { extname } from "std/path/mod.ts";
 import { readableStreamFromReader } from "std/streams/conversion.ts";
 
 /**
@@ -62,10 +63,10 @@ export default async function publicFileResponse(
       headers: new Headers(),
     };
 
-    const mimeType = lookup(requestUrl.pathname);
+    const fileExtension = extname(fileUrl.pathname);
 
-    if (mimeType) {
-      const contentTypeHeader = contentType(mimeType);
+    if (fileExtension) {
+      const contentTypeHeader = contentType(fileExtension);
 
       if (contentTypeHeader) {
         responseInit.headers.set("content-type", contentTypeHeader);

publicFileResponse.test.mjs

@@ -97,6 +97,42 @@ Deno.test("`publicFileResponse` with a missing file.", async () => {
   );
 });
 
+Deno.test("`publicFileResponse` with an extensionless file.", async () => {
+  const publicDir = new URL(
+    "./test/fixtures/publicFileResponse/public/",
+    import.meta.url,
+  );
+  const response = await publicFileResponse(
+    new Request("http://localhost/A"),
+    publicDir,
+  );
+
+  assert(response.headers instanceof Headers);
+  assertEquals(Array.from(response.headers.entries()), []);
+  assertStrictEquals(
+    await response.text(),
+    await Deno.readTextFile(new URL("./A", publicDir)),
+  );
+});
+
+Deno.test("`publicFileResponse` with an unknown file extension.", async () => {
+  const publicDir = new URL(
+    "./test/fixtures/publicFileResponse/public/",
+    import.meta.url,
+  );
+  const response = await publicFileResponse(
+    new Request("http://localhost/A.abcdefg"),
+    publicDir,
+  );
+
+  assert(response.headers instanceof Headers);
+  assertEquals(Array.from(response.headers.entries()), []);
+  assertStrictEquals(
+    await response.text(),
+    await Deno.readTextFile(new URL("./A.abcdefg", publicDir)),
+  );
+});
+
 Deno.test("`publicFileResponse` with a CSS file.", async () => {
   const publicDir = new URL(
     "./test/fixtures/publicFileResponse/public/",
@@ -109,7 +145,7 @@ Deno.test("`publicFileResponse` with a CSS file.", async () => {
 
   assert(response.headers instanceof Headers);
   assertEquals(Array.from(response.headers.entries()), [
-    ["content-type", "text/css; charset=utf-8"],
+    ["content-type", "text/css; charset=UTF-8"],
   ]);
   assertStrictEquals(
     await response.text(),
@@ -129,7 +165,7 @@ Deno.test("`publicFileResponse` with a JavaScript module.", async () => {
 
   assert(response.headers instanceof Headers);
   assertEquals(Array.from(response.headers.entries()), [
-    ["content-type", "application/javascript; charset=utf-8"],
+    ["content-type", "application/javascript; charset=UTF-8"],
   ]);
   assertStrictEquals(
     await response.text(),
@@ -181,7 +217,7 @@ Deno.test(
     assert(response.headers instanceof Headers);
     assertEquals(Array.from(response.headers.entries()), [
       addedHeadersEntry,
-      ["content-type", "application/javascript; charset=utf-8"],
+      ["content-type", "application/javascript; charset=UTF-8"],
     ]);
     assertStrictEquals(
       await response.text(),

readme.md

@@ -85,7 +85,6 @@ A Ruck project contains:
     {
       "imports": {
         "graphql-react/": "https://unpkg.com/[email protected]/",
-        "media_types/": "https://deno.land/x/[email protected]/",
         "react": "https://esm.sh/[email protected]?dev",
         "react-dom/server": "https://esm.sh/[email protected]/server?dev",
         "react-waterfall-render/": "https://unpkg.com/[email protected]/",
@@ -100,7 +99,6 @@ A Ruck project contains:
     {
       "imports": {
         "graphql-react/": "https://unpkg.com/[email protected]/",
-        "media_types/": "https://deno.land/x/[email protected]/",
         "react": "https://esm.sh/[email protected]",
         "react-dom/server": "https://esm.sh/[email protected]/server",
         "react-waterfall-render/": "https://unpkg.com/[email protected]/",

test/fixtures/publicFileResponse/public/A

@@ -0,0 +1 @@
+abc

test/fixtures/publicFileResponse/public/A.abcdefg

@@ -0,0 +1 @@
+abc