Add OpenJDK distribution to external dependency report (#58187)

buildSrc/src/main/java/org/elasticsearch/gradle/ConcatFilesTask.java

@@ -23,7 +23,9 @@ import java.io.IOException;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.StandardOpenOption;
+import java.util.ArrayList;
 import java.util.LinkedHashSet;
+import java.util.List;
 
 import org.gradle.api.DefaultTask;
 import org.gradle.api.file.FileTree;
@@ -50,6 +52,8 @@ public class ConcatFilesTask extends DefaultTask {
 
     private File target;
 
+    private List<String> additionalLines = new ArrayList<>();
+
     public void setFiles(FileTree files) {
         this.files = files;
     }
@@ -78,6 +82,15 @@ public class ConcatFilesTask extends DefaultTask {
         return target;
     }
 
+    @Input
+    public List<String> getAdditionalLines() {
+        return additionalLines;
+    }
+
+    public void setAdditionalLines(List<String> additionalLines) {
+        this.additionalLines = additionalLines;
+    }
+
     @TaskAction
     public void concatFiles() throws IOException {
         if (getHeaderLine() != null) {
@@ -90,6 +103,10 @@ public class ConcatFilesTask extends DefaultTask {
             uniqueLines.addAll(Files.readAllLines(f.toPath(), StandardCharsets.UTF_8));
         }
         Files.write(getTarget().toPath(), uniqueLines, StandardCharsets.UTF_8, StandardOpenOption.APPEND);
+
+        for (String additionalLine : additionalLines) {
+            Files.write(getTarget().toPath(), (additionalLine + '\n').getBytes(StandardCharsets.UTF_8), StandardOpenOption.APPEND);
+        }
     }
 
 }

distribution/build.gradle

@@ -41,6 +41,12 @@ tasks.register("generateDependenciesReport", ConcatFilesTask) {
   files = fileTree(dir: project.rootDir, include: '**/dependencies.csv')
   headerLine = "name,version,url,license,sourceURL"
   target = new File(System.getProperty('csv') ?: "${project.buildDir}/reports/dependencies/es-dependencies.csv")
+
+  // explicitly add our dependency on the JDK
+  String jdkVersion = VersionProperties.versions.get('bundled_jdk')
+  String jdkMajorVersion = jdkVersion.split('[+.]')[0]
+  String sourceUrl = "http://hg.openjdk.java.net/jdk-updates/jdk${jdkMajorVersion}u/archive/jdk-${jdkVersion}.tar.gz"
+  additionalLines << "OpenJDK,${jdkVersion},https://openjdk.java.net/,GPL-2.0-with-classpath-exception,${sourceUrl}".toString()
 }
 
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