From 502733a5f62488fe2f2198594c66b0bf205003dc Mon Sep 17 00:00:00 2001
From: Falko Modler <famod@users.noreply.github.com>
Date: Thu, 10 Aug 2023 00:05:57 +0200
Subject: [PATCH] Lock jib execution to avoid OverlappingFileLockException in
 parallel builds

---
 .../image/jib/deployment/JibProcessor.java    | 27 ++++++++++++++++---
 1 file changed, 24 insertions(+), 3 deletions(-)

diff --git a/extensions/container-image/container-image-jib/deployment/src/main/java/io/quarkus/container/image/jib/deployment/JibProcessor.java b/extensions/container-image/container-image-jib/deployment/src/main/java/io/quarkus/container/image/jib/deployment/JibProcessor.java
index e406fed36f2ea..0e4ce497b815e 100644
--- a/extensions/container-image/container-image-jib/deployment/src/main/java/io/quarkus/container/image/jib/deployment/JibProcessor.java
+++ b/extensions/container-image/container-image-jib/deployment/src/main/java/io/quarkus/container/image/jib/deployment/JibProcessor.java
@@ -6,7 +6,6 @@
 import static io.quarkus.container.image.deployment.util.EnablementUtil.buildContainerImageNeeded;
 import static io.quarkus.container.image.deployment.util.EnablementUtil.pushContainerImageNeeded;
 import static io.quarkus.container.util.PathsUtil.findMainSourcesRoot;
-import static io.quarkus.deployment.pkg.PackageConfig.MUTABLE_JAR;
 
 import java.io.IOException;
 import java.io.UncheckedIOException;
@@ -26,6 +25,7 @@
 import java.util.Map;
 import java.util.Optional;
 import java.util.Set;
+import java.util.concurrent.ExecutionException;
 import java.util.function.Predicate;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
@@ -33,6 +33,7 @@
 import org.eclipse.microprofile.config.ConfigProvider;
 import org.jboss.logging.Logger;
 
+import com.google.cloud.tools.jib.api.CacheDirectoryCreationException;
 import com.google.cloud.tools.jib.api.Containerizer;
 import com.google.cloud.tools.jib.api.DockerDaemonImage;
 import com.google.cloud.tools.jib.api.ImageReference;
@@ -42,6 +43,7 @@
 import com.google.cloud.tools.jib.api.JibContainer;
 import com.google.cloud.tools.jib.api.JibContainerBuilder;
 import com.google.cloud.tools.jib.api.LogEvent;
+import com.google.cloud.tools.jib.api.RegistryException;
 import com.google.cloud.tools.jib.api.RegistryImage;
 import com.google.cloud.tools.jib.api.buildplan.AbsoluteUnixPath;
 import com.google.cloud.tools.jib.api.buildplan.FileEntriesLayer;
@@ -249,7 +251,7 @@ private JibContainer containerize(ContainerImageConfig containerImageConfig,
             previousContextStorageSysProp = System.setProperty(OPENTELEMETRY_CONTEXT_CONTEXT_STORAGE_PROVIDER_SYS_PROP,
                     "default");
 
-            JibContainer container = jibContainerBuilder.containerize(containerizer);
+            JibContainer container = containerizeUnderLock(jibContainerBuilder, containerizer);
             log.infof("%s container image %s (%s)\n",
                     containerImageConfig.isPushExplicitlyEnabled() ? "Pushed" : "Created",
                     container.getTargetImage(),
@@ -300,7 +302,7 @@ private Containerizer createContainerizer(ContainerImageConfig containerImageCon
         }
         containerizer.setToolName("Quarkus");
         containerizer.setToolVersion(Version.getVersion());
-        containerizer.addEventHandler(LogEvent.class, (e) -> {
+        containerizer.addEventHandler(LogEvent.class, e -> {
             if (!e.getMessage().isEmpty()) {
                 log.log(toJBossLoggingLevel(e.getLevel()), e.getMessage());
             }
@@ -311,6 +313,25 @@ private Containerizer createContainerizer(ContainerImageConfig containerImageCon
         return containerizer;
     }
 
+    /**
+     * Wraps the containerize invocation in a synchronized block to avoid OverlappingFileLockException when running parallel jib builds (e.g. mvn -T2 ...).
+     * The lock object has to be loaded via the parent classloader so that all build threads (that use distinct augmentation CLs) lock the same object.
+     * QuarkusAugmentor was chosen semi-randomly (note: quarkus-core-deployment is visible to that parent CL, this jib extension is not!).
+     */
+    private JibContainer containerizeUnderLock(JibContainerBuilder jibContainerBuilder, Containerizer containerizer)
+            throws InterruptedException, RegistryException, IOException, CacheDirectoryCreationException, ExecutionException {
+        Class<?> lockObj = getClass();
+        ClassLoader parentCL = getClass().getClassLoader().getParent();
+        try {
+            lockObj = parentCL.loadClass("io.quarkus.deployment.QuarkusAugmentor");
+        } catch (ClassNotFoundException e) {
+            log.warnf("Could not load io.quarkus.deployment.QuarkusAugmentor with parent classloader: %s", parentCL);
+        }
+        synchronized (lockObj) {
+            return jibContainerBuilder.containerize(containerizer);
+        }
+    }
+
     private void writeOutputFiles(JibContainer jibContainer, ContainerImageJibConfig jibConfig,
             OutputTargetBuildItem outputTarget) {
         doWriteOutputFile(outputTarget, Paths.get(jibConfig.imageDigestFile), jibContainer.getDigest().toString());