ci: fix test failures in CI by pre-populating models cache

Tests were failing in CI because the models.json cache file doesn't exist
and the data() macro fallback only works at build time, not runtime.
The preload now pre-fetches models.json and disables the background
refresh to prevent race conditions during test execution.

3 files changed, 15 insertions, 0 deletions

diff --git a/packages/opencode/src/flag/flag.ts b/packages/opencode/src/flag/flag.ts
index ca1af6d84..d7a24708a 100644
--- a/packages/opencode/src/flag/flag.ts
+++ b/packages/opencode/src/flag/flag.ts
@@ -11,6 +11,7 @@ export namespace Flag {
   export const OPENCODE_DISABLE_LSP_DOWNLOAD = truthy("OPENCODE_DISABLE_LSP_DOWNLOAD")
   export const OPENCODE_ENABLE_EXPERIMENTAL_MODELS = truthy("OPENCODE_ENABLE_EXPERIMENTAL_MODELS")
   export const OPENCODE_DISABLE_AUTOCOMPACT = truthy("OPENCODE_DISABLE_AUTOCOMPACT")
+  export const OPENCODE_DISABLE_MODELS_FETCH = truthy("OPENCODE_DISABLE_MODELS_FETCH")
   export const OPENCODE_FAKE_VCS = process.env["OPENCODE_FAKE_VCS"]
   export const OPENCODE_CLIENT = process.env["OPENCODE_CLIENT"] ?? "cli"
 
diff --git a/packages/opencode/src/provider/models.ts b/packages/opencode/src/provider/models.ts
index c523725ec..c58638d28 100644
--- a/packages/opencode/src/provider/models.ts
+++ b/packages/opencode/src/provider/models.ts
@@ -4,6 +4,7 @@ import path from "path"
 import z from "zod"
 import { data } from "./models-macro" with { type: "macro" }
 import { Installation } from "../installation"
+import { Flag } from "../flag/flag"
 
 export namespace ModelsDev {
   const log = Log.create({ service: "models.dev" })
@@ -83,6 +84,7 @@ export namespace ModelsDev {
   }
 
   export async function refresh() {
+    if (Flag.OPENCODE_DISABLE_MODELS_FETCH) return
     const file = Bun.file(filepath)
     log.info("refreshing", {
       file,
diff --git a/packages/opencode/test/preload.ts b/packages/opencode/test/preload.ts
index c2a294ab2..08316a23f 100644
--- a/packages/opencode/test/preload.ts
+++ b/packages/opencode/test/preload.ts
@@ -11,6 +11,18 @@ process.env["XDG_CACHE_HOME"] = path.join(dir, "cache")
 process.env["XDG_CONFIG_HOME"] = path.join(dir, "config")
 process.env["XDG_STATE_HOME"] = path.join(dir, "state")
 
+// Pre-fetch models.json so tests don't need the macro fallback
+// Also write the cache version file to prevent global/index.ts from clearing the cache
+const cacheDir = path.join(dir, "cache", "opencode")
+await fs.mkdir(cacheDir, { recursive: true })
+await fs.writeFile(path.join(cacheDir, "version"), "14")
+const response = await fetch("https://models.dev/api.json")
+if (response.ok) {
+  await fs.writeFile(path.join(cacheDir, "models.json"), await response.text())
+}
+// Disable models.dev refresh to avoid race conditions during tests
+process.env["OPENCODE_DISABLE_MODELS_FETCH"] = "true"
+
 // Clear provider env vars to ensure clean test state
 delete process.env["ANTHROPIC_API_KEY"]
 delete process.env["OPENAI_API_KEY"]