update to use fingerprint-hash param instead of runtimeVersion

src/fingerprintUtils.ts

@@ -3,6 +3,7 @@ import { getExecOutput } from '@actions/exec';
 import { which } from '@actions/io';
 
 import { BuildInfo, BuildStatus } from './expo';
+import { resolvePackageRunner } from './packageRunner';
 
 export async function getBuildInfoForCurrentFingerprintAsync({
   platform,
@@ -68,10 +69,11 @@ async function getFingerprintHashForPlatformAsync({
     let args: string[];
     if (environment) {
       commandLine = await which('eas', true);
-      const commandToExecute = ['npx', ...baseArguments].join(' ').replace(/"/g, '\\"');
+      const runner = await resolvePackageRunner();
+      const commandToExecute = [runner, ...baseArguments].join(' ').replace(/"/g, '\\"');
       args = ['env:exec', '--non-interactive', environment, `"${commandToExecute}"`];
     } else {
-      commandLine = 'npx';
+      commandLine = await resolvePackageRunner();
       args = baseArguments;
     }
 
@@ -112,7 +114,7 @@ export async function getBuildInfoWithFingerprintAsync({
         platform,
         '--buildProfile',
         profile,
-        '--runtimeVersion',
+        '--fingerprint-hash',
         fingerprintHash,
         '--limit',
         '1',

src/packageRunner.ts

@@ -0,0 +1,14 @@
+import { which } from '@actions/io';
+
+/**
+ * Resolve the package runner to use for executing expo commands.
+ * Prefers `bunx` if available (works better with bun-managed projects),
+ * falls back to `npx`.
+ */
+export async function resolvePackageRunner(): Promise<string> {
+  try {
+    return await which('bunx', true);
+  } catch {
+    return 'npx';
+  }
+}

src/project.ts

@@ -3,6 +3,8 @@ import { getExecOutput } from '@actions/exec';
 import { which } from '@actions/io';
 import { ExpoConfig } from '@expo/config';
 
+import { resolvePackageRunner } from './packageRunner';
+
 /**
  * Load the Expo app project config in the given directory.
  * This runs `expo config` command instead of using `@expo/config` directly,
@@ -20,10 +22,11 @@ export async function loadProjectConfig(
   let args: string[];
   if (easEnvironment) {
     commandLine = await which('eas', true);
-    const commandToExecute = ['npx', ...baseArguments].join(' ').replace(/"/g, '\\"');
+    const runner = await resolvePackageRunner();
+    const commandToExecute = [runner, ...baseArguments].join(' ').replace(/"/g, '\\"');
     args = ['env:exec', '--non-interactive', easEnvironment, `"${commandToExecute}"`];
   } else {
-    commandLine = 'npx';
+    commandLine = await resolvePackageRunner();
     args = baseArguments;
   }