Skip building Android module for iOS tests

package.json

@@ -14,6 +14,6 @@
   ],
   "scripts": {
     "test": "scripts/test.sh",
-    "prepublish": "rm -rf android && cd react-native/android && ./gradlew publishAndroid"
+    "prepublish": "scripts/prepublish.sh"
   }
 }

scripts/prepublish.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+set -e
+set -o pipefail
+
+cd "$(dirname "$0")/.."
+
+if [ -n "$SKIP_ANDROID_BUILD" ]; then
+  echo 'Skipped building Android module'
+else
+  rm -rf android
+  (cd react-native/android && ./gradlew publishAndroid)
+fi

scripts/test.sh

@@ -20,7 +20,11 @@ if [[ $TARGET != *-android ]]; then
     # CoreSimulatorService doesn't exit when sent SIGTERM
     pkill -9 Simulator 2>/dev/null || true
   done
+
   DESTINATION="-destination id=$(xcrun simctl list devices | grep -v unavailable | grep -m 1 -o '[0-9A-F\-]\{36\}')"
+
+  # Inform the prepublish script to skip building Android modules.
+  export SKIP_ANDROID_BUILD=1
 fi
 
 PACKAGER_OUT="$SRCROOT/packager_out.txt"