feat: implement rules config field

This implements the top level `rules` configuration field. It lets you specify transport rules for non-js modules. For example, you can specify `*.md` files to be included as a text file with -

```
[[rules]]
{type = "Text", globs = ["**/*.md"]}
```

We also include a default ruleset -

```
  { type: "Text", globs: ["**/*.txt", "**/*.html"] },
  { type: "Data", globs: ["**/*.bin"] },
  { type: "CompiledWasm", globs: ["**/*.wasm"] },
```

More info at https://developers.cloudflare.com/workers/cli-wrangler/configuration/#build.

Known issues -

- non-wasm module types do not work in `--local` mode
- `Data` type does not work in service worker format, in either mode

Author: threepointone

.changeset/blue-rings-live.md

@@ -0,0 +1,27 @@
+---
+"wrangler": patch
+---
+
+feat: implement `rules` config field
+
+This implements the top level `rules` configuration field. It lets you specify transport rules for non-js modules. For example, you can specify `*.md` files to be included as a text file with -
+
+```
+[[rules]]
+{type = "Text", globs = ["**/*.md"]}
+```
+
+We also include a default ruleset -
+
+```
+  { type: "Text", globs: ["**/*.txt", "**/*.html"] },
+  { type: "Data", globs: ["**/*.bin"] },
+  { type: "CompiledWasm", globs: ["**/*.wasm"] },
+```
+
+More info at https://developers.cloudflare.com/workers/cli-wrangler/configuration/#build.
+
+Known issues -
+
+- non-wasm module types do not work in `--local` mode
+- `Data` type does not work in service worker format, in either mode

package-lock.json

@@ -0,0 +1,9 @@
+{
+  "name": "example-rules-app",
+  "version": "1.0.0",
+  "description": "",
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "private": true
+}

packages/example-rules-app/package.json

@@ -0,0 +1 @@
+some content

packages/example-rules-app/src/content.md

@@ -0,0 +1,17 @@
+/**
+ * Welcome to Cloudflare Workers! This is your first worker.
+ *
+ * - Run `wrangler dev src/index.ts` in your terminal to start a development server
+ * - Open a browser tab at http://localhost:8787/ to see your worker in action
+ * - Run `wrangler publish src/index.ts --name my-worker` to publish your worker
+ *
+ * Learn more at https://developers.cloudflare.com/workers/
+ */
+
+import content from "./content.md";
+
+export default {
+  async fetch(request: Request): Promise<Response> {
+    return new Response(`${request.url}: ${content}`);
+  },
+};

packages/example-rules-app/src/index.ts

@@ -0,0 +1,8 @@
+name = "example-rules-app"
+compatibility_date = "2022-02-28"
+main = "src/index.ts"
+
+[[rules]]
+type = "Text"
+globs = ["**/*.md"]
+fallthrough = true

packages/example-rules-app/wrangler.toml

@@ -53,6 +53,7 @@
     "@sentry/node": "^6.17.6",
     "@types/command-exists": "^1.2.0",
     "@types/estree": "^0.0.50",
+    "@types/glob-to-regexp": "0.4.1",
     "@types/mime": "^2.0.3",
     "@types/prompts": "^2.0.14",
     "@types/react": "^17.0.37",
@@ -69,6 +70,7 @@
     "faye-websocket": "^0.11.4",
     "finalhandler": "^1.1.2",
     "find-up": "^6.2.0",
+    "glob-to-regexp": "0.4.1",
     "ignore": "^5.2.0",
     "ink": "^3.2.0",
     "ink-select-input": "^4.2.1",

packages/wrangler/package.json

@@ -64,6 +64,7 @@ function renderDev({
   initialMode = "local",
   jsxFactory,
   jsxFragment,
+  rules = [],
   bindings = {
     kv_namespaces: [],
     vars: {},
@@ -87,6 +88,7 @@ function renderDev({
       name={name}
       entry={entry}
       env={env}
+      rules={rules}
       port={port}
       legacyEnv={legacyEnv}
       buildCommand={buildCommand}