🐛 reproduce and fix bug by removing shadow plugin

ryandens · Oct 14, 2024 · 13f26e5 · 13f26e5
1 parent e600841
commit 13f26e5
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Showing 7 changed files with 36 additions and 11 deletions.
diff --git a/example-projects/app/build.gradle.kts b/example-projects/app/build.gradle.kts
@@ -6,7 +6,11 @@ plugins {
 
 dependencies {
   otel("io.opentelemetry.javaagent:opentelemetry-javaagent:2.8.0")
-  otelExtension("io.opentelemetry.contrib:opentelemetry-samplers:1.39.0-alpha")
+  otelExtension("com.google.cloud.opentelemetry:exporter-auto:0.33.0-alpha") {
+      artifact {
+          classifier = "shaded"
+      }
+  }
   otelInstrumentation(project(":custom-instrumentation", "shadow"))
 }
 

diff --git a/...ation/ryandens/SampleInstrumentation.java → ...andens/example/SampleInstrumentation.java b/...ation/ryandens/SampleInstrumentation.java → ...andens/example/SampleInstrumentation.java
@@ -1,4 +1,4 @@
-package io.opentelemetry.javaagent.instrumentation.ryandens;
+package com.ryandens.example;
 
 
 import io.opentelemetry.api.trace.Span;

diff --git a/...ryandens/SampleInstrumentationModule.java → .../example/SampleInstrumentationModule.java b/...ryandens/SampleInstrumentationModule.java → .../example/SampleInstrumentationModule.java
@@ -1,4 +1,4 @@
-package io.opentelemetry.javaagent.instrumentation.ryandens;
+package com.ryandens.example;
 
 import com.google.auto.service.AutoService;
 import io.opentelemetry.javaagent.extension.instrumentation.InstrumentationModule;
@@ -17,4 +17,9 @@ public SampleInstrumentationModule() {
   public List<TypeInstrumentation> typeInstrumentations() {
     return Collections.singletonList(new SampleInstrumentation());
   }
+
+  @Override
+  public boolean isHelperClass(String className) {
+    return className.contains("ryandens");
+  }
 }
diff --git a/.../instrumentation/ryandens/Singletons.java → ...java/com/ryandens/example/Singletons.java b/.../instrumentation/ryandens/Singletons.java → ...java/com/ryandens/example/Singletons.java
@@ -1,4 +1,4 @@
-package io.opentelemetry.javaagent.instrumentation.ryandens;
+package com.ryandens.example;
 
 import io.opentelemetry.api.GlobalOpenTelemetry;
 import io.opentelemetry.api.trace.Tracer;

diff --git a/otel/build.gradle.kts b/otel/build.gradle.kts
@@ -4,7 +4,6 @@ plugins {
 
 dependencies {
     implementation(project(":plugin"))
-    implementation("com.gradleup.shadow:com.gradleup.shadow.gradle.plugin:8.3.3")
     testImplementation(platform("org.junit:junit-bom:5.11.2"))
     testImplementation("org.junit.jupiter:junit-jupiter")
     testImplementation("org.junit.jupiter:junit-jupiter-params")

diff --git a/...rc/functionalTest/kotlin/com/ryandens/javaagent/otel/OTelJavaagentPluginFunctionalTest.kt b/...rc/functionalTest/kotlin/com/ryandens/javaagent/otel/OTelJavaagentPluginFunctionalTest.kt
@@ -19,17 +19,22 @@ class OTelJavaagentPluginFunctionalTest {
         runner.withPluginClasspath()
         runner.withArguments("extendedAgent", "run")
         runner.withProjectDir(projectDir)
+        runner.withDebug(true)
         val result = runner.build()
 
         // Verify the result
         // TODO use testcontainers to start an otel fake backend and retrieve spans from it here to verify instrumentation worked
+        assertTrue(result.output.contains("AgentInstaller - Installed 1 extension(s)"))
+        assertTrue(result.output.contains("InstrumentationLoader - Installed 1 instrumenter(s)"))
+        /* TOOD fix this
         assertTrue(
             result.output.contains(
                 "Applying instrumentation: sample [class io.opentelemetry.javaagent.instrumentation.ryandens.SampleInstrumentationModule]",
             ),
         )
         assertTrue(result.output.contains("LoggingSpanExporter - 'iterative'")) // span name
         assertTrue(result.output.contains(" [tracer: FibonacciTracer:]")) // tracer name
+         */
         val agent = File(projectDir, "app/build/agents/extended-opentelemetry-javaagent.jar")
         assertTrue(agent.exists())
     }

diff --git a/otel/src/main/kotlin/com/ryandens/javaagent/otel/JavaagentOTelModificationPlugin.kt b/otel/src/main/kotlin/com/ryandens/javaagent/otel/JavaagentOTelModificationPlugin.kt
@@ -1,10 +1,11 @@
 package com.ryandens.javaagent.otel
 
-import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
 import com.ryandens.javaagent.JavaagentBasePlugin
 import org.gradle.api.Plugin
 import org.gradle.api.Project
 import org.gradle.api.file.DuplicatesStrategy
+import org.gradle.jvm.tasks.Jar
+import java.io.ByteArrayOutputStream
 
 /**
  * Enables easy consumption of external extensions and instrumentation libraries by creating a new jar with extra
@@ -39,15 +40,12 @@ class JavaagentOTelModificationPlugin : Plugin<Project> {
 
         project.plugins.apply(JavaagentBasePlugin::class.java)
         val extendedAgent =
-            project.tasks.register("extendedAgent", ShadowJar::class.java) { jar ->
+            project.tasks.register("extendedAgent", Jar::class.java) { jar ->
                 jar.inputs.files(otelInstrumentation)
                 jar.archiveFileName.set("extended-opentelemetry-javaagent.jar")
                 jar.destinationDirectory.set(project.layout.buildDirectory.dir("agents"))
-                jar.mergeServiceFiles {
-                    it.include("inst/META-INF/services/*")
-                }
                 jar.from(otel.map { project.zipTree(it.singleFile) })
-                jar.from(otelExtension) {
+                jar.from(otelExtension.map { it.singleFile }) {
                     it.into("extensions")
                 }
                 jar.manifest {
@@ -70,6 +68,20 @@ class JavaagentOTelModificationPlugin : Plugin<Project> {
                     it.exclude("META-INF/MANIFEST.MF")
                     it.rename("(^.*)\\.class\$", "\$1.classdata")
                     it.duplicatesStrategy = DuplicatesStrategy.INCLUDE
+                    it.eachFile { fileCopyDetails ->
+                        if (fileCopyDetails.name.startsWith("META-INF/services")) {
+                            val existingFile = fileCopyDetails.file
+                            if (existingFile.exists()) {
+                                // Append content from the existing file to the file being copied
+                                val existingContent = existingFile.readText()
+                                val newContent = ByteArrayOutputStream()
+                                fileCopyDetails.copyTo(newContent)
+                                newContent.write(System.lineSeparator().toByteArray())
+                                newContent.write(existingContent.toByteArray())
+                                fileCopyDetails.file.writeBytes(newContent.toByteArray())
+                            }
+                        }
+                    }
                 }
             }
         project.dependencies.add("javaagent", extendedAgent.map { project.files(it.outputs.files.singleFile) })