tree-shake node bundle (nodejs#1187)

* tree-shake node bundle

* Update index-fetch.js

Co-authored-by: Robert Nagy <ronagy@icloud.com>

.gitignore

@@ -75,3 +75,6 @@ yarn.lock
 corpus/
 crash-*
 fuzz-results-*.json
+
+# Bundle output
+undici-fetch.js

index-fetch.js

@@ -0,0 +1,15 @@
+'use strict'
+
+const Agent = require('./lib/agent')
+
+const globalDispatcher = new Agent()
+
+const fetchImpl = require('./lib/fetch')
+module.exports.fetch = async function fetch (resource, init) {
+  return fetchImpl.call(globalDispatcher, resource, init)
+}
+module.exports.FormData = require('./lib/fetch/formdata').FormData
+module.exports.Headers = require('./lib/fetch/headers').Headers
+module.exports.Response = require('./lib/fetch/response').Response
+module.exports.Request = require('./lib/fetch/request').Request
+

package.json

@@ -40,7 +40,7 @@
     "docs"
   ],
   "scripts": {
-    "build:node": "npx esbuild@0.14.25 index.js --bundle --platform=node --outfile=undici.js",
+    "build:node": "npx esbuild@0.14.25 index-fetch.js --bundle --platform=node --outfile=undici-fetch.js",
     "prebuild:wasm": "docker build -t llhttp_wasm_builder -f build/Dockerfile .",
     "build:wasm": "node build/wasm.js --docker",
     "lint": "standard | snazzy",