message rendering performance improvements

packages/opencode/src/trace/index.ts

@@ -0,0 +1,53 @@
+import { Global } from "../global"
+import { Installation } from "../installation"
+import path from "path"
+
+export namespace Trace {
+  export function init() {
+    if (!Installation.isDev()) return
+    const writer = Bun.file(path.join(Global.Path.data, "log", "fetch.log")).writer()
+
+    const originalFetch = globalThis.fetch
+    // @ts-expect-error
+    globalThis.fetch = async (input: RequestInfo | URL, init?: RequestInit) => {
+      const url = typeof input === "string" ? input : input instanceof URL ? input.toString() : input.url
+      const method = init?.method || "GET"
+
+      const urlObj = new URL(url)
+
+      writer.write(`\n${method} ${urlObj.pathname}${urlObj.search} HTTP/1.1\n`)
+      writer.write(`Host: ${urlObj.host}\n`)
+
+      if (init?.headers) {
+        if (init.headers instanceof Headers) {
+          init.headers.forEach((value, key) => {
+            writer.write(`${key}: ${value}\n`)
+          })
+        } else {
+          for (const [key, value] of Object.entries(init.headers)) {
+            writer.write(`${key}: ${value}\n`)
+          }
+        }
+      }
+
+      if (init?.body) {
+        writer.write(`\n${init.body}`)
+      }
+      writer.flush()
+      const response = await originalFetch(input, init)
+      const clonedResponse = response.clone()
+      writer.write(`\nHTTP/1.1 ${response.status} ${response.statusText}\n`)
+      response.headers.forEach((value, key) => {
+        writer.write(`${key}: ${value}\n`)
+      })
+      if (clonedResponse.body) {
+        clonedResponse.text().then(async (x) => {
+          writer.write(`\n${x}\n`)
+        })
+      }
+      writer.flush()
+
+      return response
+    }
+  }
+}