Migrate build from Groovy to Kotlin DSL (#247)

Co-authored-by: Trask Stalnaker <[email protected]>

.gitignore

@@ -33,3 +33,6 @@ bin
 
 # Vim
 .swp
+
+# Polyglot runtime manager (asdf rust clone)
+.rtx.toml

autoconfigure/build.gradle → autoconfigure/build.gradle.kts

@@ -1,9 +1,9 @@
 plugins {
-    id 'java'
+    id("java")
 }
 
 description = "OpenTelemetry Examples for SDK autoconfiguration"
-ext.moduleName = "io.opentelemetry.examples.autoconfigure"
+val moduleName by extra { "io.opentelemetry.examples.autoconfigure" }
 
 java {
     toolchain {

build.gradle.kts

@@ -0,0 +1,31 @@
+plugins {
+    id("com.diffplug.spotless")
+    id("com.github.johnrengelman.shadow") apply false
+    id("java-library")
+}
+
+subprojects {
+    apply(plugin = "com.diffplug.spotless")
+    apply(plugin = "java-library")
+    apply(plugin = "com.github.johnrengelman.shadow")
+
+    group = "io.opentelemetry"
+    version = "0.1.0-SNAPSHOT"
+
+    repositories {
+        mavenCentral()
+    }
+
+    dependencies {
+        // using the bom ensures that all of your opentelemetry dependency versions are aligned
+        implementation(platform("io.opentelemetry:opentelemetry-bom-alpha:1.31.0-alpha"))
+        implementation(platform("io.opentelemetry.instrumentation:opentelemetry-instrumentation-bom-alpha:1.31.0-alpha"))
+    }
+
+    spotless {
+        java {
+            targetExclude("**/generated/**")
+            googleJavaFormat()
+        }
+    }
+}

file-configuration/build.gradle → file-configuration/build.gradle.kts

@@ -1,10 +1,10 @@
 plugins {
-    id 'java'
-    id 'application'
+    id("java")
+    id("application")
 }
 
-description = 'OpenTelemetry Example for File Configuration'
-ext.moduleName = "io.opentelemetry.examples.fileconfig"
+description = "OpenTelemetry Example for File Configuration"
+val moduleName by extra { "io.opentelemetry.examples.fileconfig" }
 
 dependencies {
     implementation("io.opentelemetry:opentelemetry-api")
@@ -14,5 +14,5 @@ dependencies {
 }
 
 application {
-    mainClass = 'io.opentelemetry.examples.fileconfig.Application'
+    mainClass = "io.opentelemetry.examples.fileconfig.Application"
 }

http/build.gradle → http/build.gradle.kts

@@ -1,9 +1,9 @@
 plugins {
-    id 'java'
+    id("java")
 }
 
-description = 'OpenTelemetry Examples for HTTP'
-ext.moduleName = "io.opentelemetry.examples.http"
+description = "OpenTelemetry Examples for HTTP"
+val moduleName by extra { "io.opentelemetry.examples.http" }
 
 java {
     toolchain {
@@ -17,6 +17,6 @@ dependencies {
     implementation("io.opentelemetry:opentelemetry-exporter-logging")
 
     //alpha modules
-    implementation "io.opentelemetry.semconv:opentelemetry-semconv"
+    implementation("io.opentelemetry.semconv:opentelemetry-semconv")
     implementation("io.opentelemetry:opentelemetry-sdk-extension-autoconfigure")
 }

jaeger/build.gradle → jaeger/build.gradle.kts

@@ -1,9 +1,9 @@
 plugins {
-    id 'java'
+    id("java")
 }
 
-description = 'OpenTelemetry Examples for Jaeger Backend'
-ext.moduleName = "io.opentelemetry.examples.jaeger"
+description = "OpenTelemetry Examples for Jaeger Backend"
+val moduleName by extra { "io.opentelemetry.examples.jaeger" }
 
 java {
     toolchain {
@@ -17,5 +17,5 @@ dependencies {
     implementation("io.opentelemetry:opentelemetry-exporter-otlp")
 
     //alpha module
-    implementation "io.opentelemetry.semconv:opentelemetry-semconv"
+    implementation("io.opentelemetry.semconv:opentelemetry-semconv")
 }

javaagent/build.gradle.kts

@@ -0,0 +1,40 @@
+import org.springframework.boot.gradle.tasks.bundling.BootJar
+
+plugins {
+    id("java")
+    id("org.springframework.boot") version "2.7.17"
+    id("io.spring.dependency-management") version "1.1.4"
+}
+
+description = "OpenTelemetry Example for Java Agent"
+val moduleName by extra { "io.opentelemetry.examples.javagent" }
+
+java {
+    toolchain {
+        languageVersion.set(JavaLanguageVersion.of(8))
+    }
+}
+
+val agent = configurations.create("agent")
+
+dependencies {
+    implementation("io.opentelemetry:opentelemetry-api")
+
+    //spring modules
+    implementation("org.springframework.boot:spring-boot-starter-web")
+
+    agent("io.opentelemetry.javaagent:opentelemetry-javaagent:1.31.0")
+}
+
+val copyAgent = tasks.register<Copy>("copyAgent") {
+    from(agent.singleFile)
+    into(layout.buildDirectory.dir("agent"))
+    rename("opentelemetry-javaagent-.*\\.jar", "opentelemetry-javaagent.jar")
+}
+
+
+tasks.named<BootJar>("bootJar") {
+    dependsOn(copyAgent)
+
+    archiveFileName = "app.jar"
+}

kotlin-extension/build.gradle → kotlin-extension/build.gradle.kts

@@ -1,8 +1,8 @@
 plugins {
-    id 'org.jetbrains.kotlin.jvm' version '1.9.20'
+    id ("org.jetbrains.kotlin.jvm") version "1.9.20"
 }
 
-description = 'OpenTelemetry Example for Kotlin extensions'
+description = "OpenTelemetry Example for Kotlin extensions"
 
 kotlin {
     compilerOptions {

log-appender/README.md

@@ -16,7 +16,7 @@ Details about the example:
   * SLF4J API [configured with Logback](./src/main/resources/logback.xml) to
     print logs to the console and
     the [OpenTelemetry Logback Appender](https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/main/instrumentation/logback/logback-appender-1.0/library/README.md).
-  * [JUL to SLF4J](./build.gradle), which bridges JUL logs to the SLF4J API, and
+  * [JUL to SLF4J](./build.gradle.kts), which bridges JUL logs to the SLF4J API, and
     ultimately to Logback.
 * Demonstrates how trace context is propagated to logs when recorded within a
   span.

log-appender/build.gradle → log-appender/build.gradle.kts

@@ -1,10 +1,10 @@
 plugins {
-    id 'java'
-    id 'application'
+    id("java")
+    id("application")
 }
 
-description = 'OpenTelemetry Log Appender Example'
-ext.moduleName = "io.opentelemetry.examples.log-appender"
+description = "OpenTelemetry Log Appender Example"
+val moduleName by extra { "io.opentelemetry.examples.log-appender" }
 
 java {
     toolchain {
@@ -29,13 +29,13 @@ dependencies {
     // OpenTelemetry core
     implementation("io.opentelemetry:opentelemetry-sdk")
     implementation("io.opentelemetry:opentelemetry-exporter-otlp")
-    implementation "io.opentelemetry.semconv:opentelemetry-semconv"
+    implementation("io.opentelemetry.semconv:opentelemetry-semconv")
 
     // OpenTelemetry log4j / logback appenders
-    implementation 'io.opentelemetry.instrumentation:opentelemetry-log4j-appender-2.17'
-    implementation 'io.opentelemetry.instrumentation:opentelemetry-logback-appender-1.0'
+    implementation("io.opentelemetry.instrumentation:opentelemetry-log4j-appender-2.17")
+    implementation("io.opentelemetry.instrumentation:opentelemetry-logback-appender-1.0")
 }
 
 application {
-    mainClass = 'io.opentelemetry.example.logappender.Application'
+    mainClass = "io.opentelemetry.example.logappender.Application"
 }

logging/build.gradle → logging/build.gradle.kts

@@ -1,9 +1,9 @@
 plugins {
-    id 'java'
+    id("java")
 }
 
 description = "OpenTelemetry Examples for logging exporters"
-ext.moduleName = "io.opentelemetry.examples.logging"
+val moduleName by extra { "io.opentelemetry.examples.logging" }
 
 java {
     toolchain {

metrics/build.gradle → metrics/build.gradle.kts

@@ -1,9 +1,9 @@
 plugins {
-    id 'java'
+    id("java")
 }
 
-description = 'OpenTelemetry Examples for metrics'
-ext.moduleName = "io.opentelemetry.examples.metrics"
+description = "OpenTelemetry Examples for metrics"
+val moduleName by extra { "io.opentelemetry.examples.metrics" }
 
 java {
     toolchain {

micrometer-shim/build.gradle → micrometer-shim/build.gradle.kts

@@ -1,20 +1,22 @@
+import org.springframework.boot.gradle.tasks.run.BootRun
+
 plugins {
-    id 'java'
-    id 'org.springframework.boot' version '2.7.17'
-    id 'io.spring.dependency-management' version '1.1.4'
+    id("java")
+    id("org.springframework.boot") version "2.7.17"
+    id("io.spring.dependency-management") version "1.1.4"
 }
 
-description = 'OpenTelemetry Example for Micrometer Shim'
-ext.moduleName = "io.opentelemetry.examples.micrometer-shim"
+description = "OpenTelemetry Example for Micrometer Shim"
+val moduleName by extra { "io.opentelemetry.examples.micrometer-shim" }
 
 java {
     toolchain {
         languageVersion.set(JavaLanguageVersion.of(8))
     }
 }
 
-bootRun {
-    mainClass.set 'io.opentelemetry.example.micrometer.Application'
+val bootRun = tasks.named<BootRun>("bootRun") {
+    mainClass = "io.opentelemetry.example.micrometer.Application"
 }
 
 dependencies {

otlp/build.gradle → otlp/build.gradle.kts

@@ -1,9 +1,9 @@
 plugins {
-    id 'java'
+    id("java")
 }
 
-description = 'OpenTelemetry Example for OTLP Exporters'
-ext.moduleName = "io.opentelemetry.examples.otlp"
+description = "OpenTelemetry Example for OTLP Exporters"
+val moduleName by extra { "io.opentelemetry.examples.otlp" }
 
 java {
     toolchain {
@@ -15,5 +15,5 @@ dependencies {
     implementation("io.opentelemetry:opentelemetry-api")
     implementation("io.opentelemetry:opentelemetry-sdk")
     implementation("io.opentelemetry:opentelemetry-exporter-otlp")
-    implementation "io.opentelemetry.semconv:opentelemetry-semconv"
+    implementation("io.opentelemetry.semconv:opentelemetry-semconv")
 }

prometheus/build.gradle → prometheus/build.gradle.kts

@@ -1,9 +1,9 @@
 plugins {
-    id 'java'
+    id("java")
 }
 
-description = 'OpenTelemetry Example for Prometheus Exporter'
-ext.moduleName = "io.opentelemetry.examples.prometheus"
+description = "OpenTelemetry Example for Prometheus Exporter"
+val moduleName by extra { "io.opentelemetry.examples.prometheus" }
 
 java {
     toolchain {
@@ -15,7 +15,7 @@ dependencies {
     implementation("io.opentelemetry:opentelemetry-api")
     implementation("io.opentelemetry:opentelemetry-sdk")
     implementation("io.opentelemetry:opentelemetry-exporter-logging")
-    implementation "io.opentelemetry.semconv:opentelemetry-semconv"
+    implementation("io.opentelemetry.semconv:opentelemetry-semconv")
 
     //alpha modules
     implementation("io.opentelemetry:opentelemetry-exporter-prometheus")