get codex working in copilot

nix/hashes.json

@@ -1,3 +1,3 @@
 {
-  "nodeModules": "sha256-+PJZG5jNxBGkxblpnNa4lvfBi9YEvHaGQRE0+avNwHY="
+  "nodeModules": "sha256-jLrT8GVq0Fh34tN1MPgJpPKd9SGhOauaBl8f1oZ/XgI="
 }

packages/opencode/package.json

@@ -50,6 +50,8 @@
     "@ai-sdk/mcp": "0.0.8",
     "@ai-sdk/openai": "2.0.71",
     "@ai-sdk/openai-compatible": "1.0.27",
+    "@ai-sdk/provider": "2.0.0",
+    "@ai-sdk/provider-utils": "3.0.18",
     "@clack/prompts": "1.0.0-alpha.1",
     "@hono/standard-validator": "0.1.5",
     "@hono/zod-validator": "catalog:",

packages/opencode/src/cli/cmd/tui/component/prompt/index.tsx

@@ -843,6 +843,7 @@ export function Prompt(props: PromptProps) {
               justifyContent={status().type === "retry" ? "space-between" : "flex-start"}
             >
               <box flexShrink={0} flexDirection="row" gap={1}>
+                {/* @ts-ignore // SpinnerOptions doesn't support marginLeft */}
                 <spinner marginLeft={1} color={spinnerDef().color} frames={spinnerDef().frames} interval={40} />
                 <box flexDirection="row" gap={1} flexShrink={0}>
                   {(() => {

packages/opencode/src/provider/provider.ts

@@ -23,6 +23,7 @@ import { createVertexAnthropic } from "@ai-sdk/google-vertex/anthropic"
 import { createOpenAI } from "@ai-sdk/openai"
 import { createOpenAICompatible } from "@ai-sdk/openai-compatible"
 import { createOpenRouter } from "@openrouter/ai-sdk-provider"
+import { createOpenaiCompatible as createGitHubCopilotOpenAICompatible } from "./sdk/openai-compatible/src"
 
 export namespace Provider {
   const log = Log.create({ service: "provider" })
@@ -37,6 +38,8 @@ export namespace Provider {
     "@ai-sdk/openai": createOpenAI,
     "@ai-sdk/openai-compatible": createOpenAICompatible,
     "@openrouter/ai-sdk-provider": createOpenRouter,
+    // @ts-ignore (TODO: kill this code so we dont have to maintain it)
+    "@ai-sdk/github-copilot": createGitHubCopilotOpenAICompatible,
   }
 
   type CustomLoader = (provider: ModelsDev.Provider) => Promise<{
@@ -87,6 +90,30 @@ export namespace Provider {
         options: {},
       }
     },
+    "github-copilot": async () => {
+      return {
+        autoload: false,
+        async getModel(sdk: any, modelID: string, _options?: Record<string, any>) {
+          if (modelID.includes("gpt-5")) {
+            return sdk.responses(modelID)
+          }
+          return sdk.chat(modelID)
+        },
+        options: {},
+      }
+    },
+    "github-copilot-enterprise": async () => {
+      return {
+        autoload: false,
+        async getModel(sdk: any, modelID: string, _options?: Record<string, any>) {
+          if (modelID.includes("gpt-5")) {
+            return sdk.responses(modelID)
+          }
+          return sdk.chat(modelID)
+        },
+        options: {},
+      }
+    },
     azure: async () => {
       return {
         autoload: false,
@@ -428,15 +455,6 @@ export namespace Provider {
       }
     }
 
-    // load custom
-    for (const [providerID, fn] of Object.entries(CUSTOM_LOADERS)) {
-      if (disabled.has(providerID)) continue
-      const result = await fn(database[providerID])
-      if (result && (result.autoload || providers[providerID])) {
-        mergeProvider(providerID, result.options ?? {}, "custom", result.getModel)
-      }
-    }
-
     for (const plugin of await Plugin.list()) {
       if (!plugin.auth) continue
       const providerID = plugin.auth.provider
@@ -478,6 +496,14 @@ export namespace Provider {
       }
     }
 
+    for (const [providerID, fn] of Object.entries(CUSTOM_LOADERS)) {
+      if (disabled.has(providerID)) continue
+      const result = await fn(database[providerID])
+      if (result && (result.autoload || providers[providerID])) {
+        mergeProvider(providerID, result.options ?? {}, "custom", result.getModel)
+      }
+    }
+
     // load config
     for (const [providerID, provider] of configProviders) {
       mergeProvider(providerID, provider.options ?? {}, "config")
@@ -489,6 +515,10 @@ export namespace Provider {
         continue
       }
 
+      if (providerID === "github-copilot") {
+        provider.info.npm = "@ai-sdk/github-copilot"
+      }
+
       const configProvider = config.provider?.[providerID]
       const filteredModels = Object.fromEntries(
         Object.entries(provider.info.models)

packages/opencode/src/provider/sdk/openai-compatible/src/README.md

@@ -0,0 +1,5 @@
+This is a temporary package used primarily for github copilot compatibility.
+
+Avoid making changes to these files unless you want to only affect Copilot provider.
+
+Also this should ONLY be used for Copilot provider.

packages/opencode/src/provider/sdk/openai-compatible/src/index.ts

@@ -0,0 +1,2 @@
+export { createOpenaiCompatible, openaiCompatible } from "./openai-compatible-provider"
+export type { OpenaiCompatibleProvider, OpenaiCompatibleProviderSettings } from "./openai-compatible-provider"

packages/opencode/src/provider/sdk/openai-compatible/src/openai-compatible-provider.ts

@@ -0,0 +1,100 @@
+import type { LanguageModelV2 } from "@ai-sdk/provider"
+import { OpenAICompatibleChatLanguageModel } from "@ai-sdk/openai-compatible"
+import { type FetchFunction, withoutTrailingSlash, withUserAgentSuffix } from "@ai-sdk/provider-utils"
+import { OpenAIResponsesLanguageModel } from "./responses/openai-responses-language-model"
+
+// Import the version or define it
+const VERSION = "0.1.0"
+
+export type OpenaiCompatibleModelId = string
+
+export interface OpenaiCompatibleProviderSettings {
+  /**
+   * API key for authenticating requests.
+   */
+  apiKey?: string
+
+  /**
+   * Base URL for the OpenAI Compatible API calls.
+   */
+  baseURL?: string
+
+  /**
+   * Name of the provider.
+   */
+  name?: string
+
+  /**
+   * Custom headers to include in the requests.
+   */
+  headers?: Record<string, string>
+
+  /**
+   * Custom fetch implementation.
+   */
+  fetch?: FetchFunction
+}
+
+export interface OpenaiCompatibleProvider {
+  (modelId: OpenaiCompatibleModelId): LanguageModelV2
+  chat(modelId: OpenaiCompatibleModelId): LanguageModelV2
+  responses(modelId: OpenaiCompatibleModelId): LanguageModelV2
+  languageModel(modelId: OpenaiCompatibleModelId): LanguageModelV2
+
+  // embeddingModel(modelId: any): EmbeddingModelV2
+
+  // imageModel(modelId: any): ImageModelV2
+}
+
+/**
+ * Create an OpenAI Compatible provider instance.
+ */
+export function createOpenaiCompatible(options: OpenaiCompatibleProviderSettings = {}): OpenaiCompatibleProvider {
+  const baseURL = withoutTrailingSlash(options.baseURL ?? "https://api.openai.com/v1")
+
+  if (!baseURL) {
+    throw new Error("baseURL is required")
+  }
+
+  // Merge headers: defaults first, then user overrides
+  const headers = {
+    // Default OpenAI Compatible headers (can be overridden by user)
+    ...(options.apiKey && { Authorization: `Bearer ${options.apiKey}` }),
+    ...options.headers,
+  }
+
+  const getHeaders = () => withUserAgentSuffix(headers, `ai-sdk/openai-compatible/${VERSION}`)
+
+  const createChatModel = (modelId: OpenaiCompatibleModelId) => {
+    return new OpenAICompatibleChatLanguageModel(modelId, {
+      provider: `${options.name ?? "openai-compatible"}.chat`,
+      headers: getHeaders,
+      url: ({ path }) => `${baseURL}${path}`,
+      fetch: options.fetch,
+    })
+  }
+
+  const createResponsesModel = (modelId: OpenaiCompatibleModelId) => {
+    return new OpenAIResponsesLanguageModel(modelId, {
+      provider: `${options.name ?? "openai-compatible"}.responses`,
+      headers: getHeaders,
+      url: ({ path }) => `${baseURL}${path}`,
+      fetch: options.fetch,
+    })
+  }
+
+  const createLanguageModel = (modelId: OpenaiCompatibleModelId) => createChatModel(modelId)
+
+  const provider = function (modelId: OpenaiCompatibleModelId) {
+    return createChatModel(modelId)
+  }
+
+  provider.languageModel = createLanguageModel
+  provider.chat = createChatModel
+  provider.responses = createResponsesModel
+
+  return provider as OpenaiCompatibleProvider
+}
+
+// Default OpenAI Compatible provider instance
+export const openaiCompatible = createOpenaiCompatible()