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| 1 | +/* |
| 2 | + * Gradle debugging plugin for dd-trace-java builds. |
| 3 | + */ |
| 4 | + |
| 5 | +val ddGradleDebugEnabled = project.hasProperty("ddGradleDebug") |
| 6 | +val logPath = rootProject.layout.buildDirectory.file("datadog.gradle-debug.log") |
| 7 | + |
| 8 | +fun inferJdkFromJavaHome(javaHome: String?): String { |
| 9 | + val effectiveJavaHome = javaHome ?: System.getenv("JAVA_HOME") |
| 10 | + if (effectiveJavaHome == null) { |
| 11 | + throw IllegalStateException("JAVA_HOME is not set") |
| 12 | + } |
| 13 | + val javaExecutable = File(effectiveJavaHome, "bin/java").absolutePath |
| 14 | + return try { |
| 15 | + val process = ProcessBuilder(javaExecutable, "-version") |
| 16 | + .redirectErrorStream(true) |
| 17 | + .start() |
| 18 | + val output = process.inputStream.bufferedReader().readText() |
| 19 | + val versionLine = output.lines().firstOrNull() ?: "" |
| 20 | + val versionMatch = Regex("version\\s+\"([0-9._]+)\"").find(versionLine) |
| 21 | + versionMatch?.let { |
| 22 | + val version = it.groupValues[1] |
| 23 | + when { |
| 24 | + version.startsWith("1.") -> version.substring(2, 3) |
| 25 | + else -> version.split('.').first() |
| 26 | + } |
| 27 | + } ?: "unknown" |
| 28 | + } catch (e: Exception) { |
| 29 | + "error: ${e.message}" |
| 30 | + } |
| 31 | +} |
| 32 | + |
| 33 | +fun getJdkFromCompilerOptions(co: CompileOptions): String? { |
| 34 | + if (co.isFork) { |
| 35 | + val fo = co.forkOptions |
| 36 | + val javaHome = fo.javaHome |
| 37 | + if (javaHome != null) { |
| 38 | + return inferJdkFromJavaHome(javaHome.toString()) |
| 39 | + } |
| 40 | + } |
| 41 | + return null |
| 42 | +} |
| 43 | + |
| 44 | +fun printJdkForProjectTasks(project: Project, logFile: File) { |
| 45 | + project.tasks.forEach { task -> |
| 46 | + val data = mutableMapOf<String, String>() |
| 47 | + data["task"] = task.path.toString() |
| 48 | + if (task is JavaExec) { |
| 49 | + val launcher = task.javaLauncher.get() |
| 50 | + data["jdk"] = launcher.metadata.languageVersion.toString() |
| 51 | + } else if (task is Javadoc) { |
| 52 | + val tool = task.javadocTool.get() |
| 53 | + data["jdk"] = tool.metadata.languageVersion.toString() |
| 54 | + } else if (task is Test) { |
| 55 | + val launcher = task.javaLauncher.get() |
| 56 | + data["jdk"] = launcher.metadata.languageVersion.toString() |
| 57 | + } else if (task is Exec) { |
| 58 | + val java_home = task.environment.get("JAVA_HOME")?.toString() |
| 59 | + data["jdk"] = inferJdkFromJavaHome(java_home) |
| 60 | + } else if (task is JavaCompile) { |
| 61 | + val compiler = task.javaCompiler.get() |
| 62 | + data["jdk"] = compiler.metadata.languageVersion.toString() |
| 63 | + val jdkFromJavaHome = getJdkFromCompilerOptions(task.options) |
| 64 | + if (jdkFromJavaHome != null && jdkFromJavaHome != data["jdk"]) { |
| 65 | + data["java_home"] = jdkFromJavaHome |
| 66 | + } |
| 67 | + } else if (task is GroovyCompile) { |
| 68 | + val launcher = task.javaLauncher.get() |
| 69 | + data["jdk"] = launcher.metadata.languageVersion.toString() |
| 70 | + val jdkFromJavaHome = getJdkFromCompilerOptions(task.options) |
| 71 | + if (jdkFromJavaHome != null && jdkFromJavaHome != data["jdk"]) { |
| 72 | + data["java_home"] = jdkFromJavaHome |
| 73 | + } |
| 74 | + } else if (task is ScalaCompile) { |
| 75 | + val launcher = task.javaLauncher.get() |
| 76 | + data["jdk"] = launcher.metadata.languageVersion.toString() |
| 77 | + val jdkFromJavaHome = getJdkFromCompilerOptions(task.options) |
| 78 | + if (jdkFromJavaHome != null && jdkFromJavaHome != data["jdk"]) { |
| 79 | + data["java_home"] = jdkFromJavaHome |
| 80 | + } |
| 81 | + } else { |
| 82 | + data["jdk"] = "unknown" |
| 83 | + } |
| 84 | + val json = data.entries.joinToString(prefix = "{", postfix = "}") { (k, v) -> "\"$k\":\"$v\"" } |
| 85 | + logFile.appendText("$json\n") |
| 86 | + } |
| 87 | +} |
| 88 | + |
| 89 | +class DebugBuildListener : org.gradle.BuildListener { |
| 90 | + override fun settingsEvaluated(settings: Settings) = Unit |
| 91 | + |
| 92 | + override fun projectsLoaded(gradle: Gradle) = Unit |
| 93 | + |
| 94 | + override fun buildFinished(result: BuildResult) = Unit |
| 95 | + |
| 96 | + override fun projectsEvaluated(gradle: Gradle) { |
| 97 | + val logFile = logPath.get().asFile |
| 98 | + logFile.writeText("") |
| 99 | + gradle.rootProject.allprojects.forEach { project -> |
| 100 | + printJdkForProjectTasks(project, logFile) |
| 101 | + } |
| 102 | + } |
| 103 | +} |
| 104 | + |
| 105 | +if (ddGradleDebugEnabled) { |
| 106 | + logger.lifecycle("datadog.gradle-debug plugin is enabled") |
| 107 | + gradle.addListener(DebugBuildListener()) |
| 108 | +} |
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