test: add retries to gradle wrapper command (#9612)

Author: daniel-mohedano

dd-smoke-tests/gradle/src/test/groovy/datadog/smoketest/GradleLauncherSmokeTest.groovy

@@ -3,14 +3,19 @@ package datadog.smoketest
 import datadog.communication.util.IOUtils
 import datadog.trace.civisibility.utils.ShellCommandExecutor
 import org.opentest4j.AssertionFailedError
+import org.slf4j.Logger
+import org.slf4j.LoggerFactory
 
 /**
  * This test runs Gradle Launcher with the Java Tracer injected
  * and verifies that the tracer is injected into the Gradle Daemon.
  */
 class GradleLauncherSmokeTest extends AbstractGradleTest {
 
+  private static final Logger LOGGER = LoggerFactory.getLogger(GradleLauncherSmokeTest)
+
   private static final int GRADLE_BUILD_TIMEOUT_MILLIS = 90_000
+  private static final int GRADLE_WRAPPER_RETRIES = 3
 
   private static final String JAVA_HOME = buildJavaHome()
 
@@ -47,7 +52,16 @@ class GradleLauncherSmokeTest extends AbstractGradleTest {
 
   private void givenGradleWrapper(String gradleVersion) {
     def shellCommandExecutor = new ShellCommandExecutor(projectFolder.toFile(), GRADLE_BUILD_TIMEOUT_MILLIS, ["JAVA_HOME": JAVA_HOME])
-    shellCommandExecutor.executeCommand(IOUtils::readFully, "./gradlew", "wrapper", "--gradle-version", gradleVersion)
+    for (int attempt = 0; attempt < GRADLE_WRAPPER_RETRIES; attempt++) {
+      try {
+        shellCommandExecutor.executeCommand(IOUtils::readFully, "./gradlew", "wrapper", "--gradle-version", gradleVersion)
+        return
+      } catch (ShellCommandExecutor.ShellCommandFailedException e) {
+        LOGGER.warn("Failed gradle wrapper resolution with exception: ", e)
+        Thread.sleep(2000) // small delay for rapid retries on network issues
+      }
+    }
+    throw new AssertionError((Object) "Tried $GRADLE_WRAPPER_RETRIES times to execute gradle wrapper command and failed")
   }
 
   private String whenRunningGradleLauncherWithJavaTracerInjected(String gradleDaemonCmdLineParams) {