refactor: provision for when unstable_readConfig becomes async (#1087)

Author: vicb

packages/cloudflare/src/cli/commands/build.ts

@@ -40,7 +40,7 @@ async function buildCommand(
 		await createWranglerConfigIfNotExistent(projectOpts);
 	}
 
-	const wranglerConfig = readWranglerConfig(args);
+	const wranglerConfig = await readWranglerConfig(args);
 
 	await buildImpl(options, config, projectOpts, wranglerConfig);
 }

packages/cloudflare/src/cli/commands/deploy.ts

@@ -25,7 +25,7 @@ export async function deployCommand(args: WithWranglerArgs<{ cacheChunkSize?: nu
 	const { config } = await retrieveCompiledConfig();
 	const buildOpts = getNormalizedOptions(config);
 
-	const wranglerConfig = readWranglerConfig(args);
+	const wranglerConfig = await readWranglerConfig(args);
 
 	const envVars = await getEnvFromPlatformProxy(config, buildOpts);
 

packages/cloudflare/src/cli/commands/populate-cache.ts

@@ -64,7 +64,7 @@ async function populateCacheCommand(
 	const { config } = await retrieveCompiledConfig();
 	const buildOpts = getNormalizedOptions(config);
 
-	const wranglerConfig = readWranglerConfig(args);
+	const wranglerConfig = await readWranglerConfig(args);
 	const envVars = await getEnvFromPlatformProxy(config, buildOpts);
 
 	await populateCache(

packages/cloudflare/src/cli/commands/preview.ts

@@ -25,7 +25,7 @@ export async function previewCommand(
 	const { config } = await retrieveCompiledConfig();
 	const buildOpts = getNormalizedOptions(config);
 
-	const wranglerConfig = readWranglerConfig(args);
+	const wranglerConfig = await readWranglerConfig(args);
 	const envVars = await getEnvFromPlatformProxy(config, buildOpts);
 
 	await populateCache(

packages/cloudflare/src/cli/commands/upload.ts

@@ -25,7 +25,7 @@ export async function uploadCommand(args: WithWranglerArgs<{ cacheChunkSize?: nu
 	const { config } = await retrieveCompiledConfig();
 	const buildOpts = getNormalizedOptions(config);
 
-	const wranglerConfig = readWranglerConfig(args);
+	const wranglerConfig = await readWranglerConfig(args);
 
 	const envVars = await getEnvFromPlatformProxy(
 		{

packages/cloudflare/src/cli/commands/utils.ts

@@ -101,8 +101,11 @@ export function getNormalizedOptions(config: OpenNextConfig, buildDir = nextAppD
  * @param args Wrangler environment and config path.
  * @returns Wrangler config.
  */
-export function readWranglerConfig(args: WithWranglerArgs) {
-	return unstable_readConfig({ env: args.env, config: args.wranglerConfigPath });
+export async function readWranglerConfig(args: WithWranglerArgs) {
+	// Note: `unstable_readConfig` is sync as of wrangler 4.60.0
+	//       But it will eventually become async.
+	//       See https://github.com/cloudflare/workers-sdk/pull/12031
+	return await unstable_readConfig({ env: args.env, config: args.wranglerConfigPath });
 }
 
 /**