Change how kotlinc and tools display their version

- Display the Kotlin version in kotlin-gradle-plugin. This is needed
  because if "-version" is specified in compiler arguments, the "info"
  level of the message printed by the compiler in CLICompiler prevents
  it from being displayed by default (unless "--debug" is passed to
  Gradle).
- Display the version of JRE the compiler is running on. This will be
  helpful to diagnose Java 9 related issues in the future.
- In CLI, also display the executable name (kotlinc-jvm or kotlinc-js)

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/CommonCompilerArguments.java

@@ -119,11 +119,6 @@ public abstract class CommonCompilerArguments implements Serializable {
         return new DummyImpl();
     }
 
-    @NotNull
-    public String executableScriptFileName() {
-        return "kotlinc";
-    }
-
     public static final String WARN = "warn";
     public static final String ERROR = "error";
     public static final String ENABLE = "enable";

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JSCompilerArguments.java

@@ -88,10 +88,4 @@ public class K2JSCompilerArguments extends CommonCompilerArguments {
         arguments.moduleKind = K2JsArgumentConstants.MODULE_PLAIN;
         return arguments;
     }
-
-    @Override
-    @NotNull
-    public String executableScriptFileName() {
-        return "kotlinc-js";
-    }
 }

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JVMCompilerArguments.java

@@ -146,10 +146,4 @@ public class K2JVMCompilerArguments extends CommonCompilerArguments {
         arguments.jvmTarget = JvmTarget.DEFAULT.getDescription();
         return arguments;
     }
-
-    @Override
-    @NotNull
-    public String executableScriptFileName() {
-        return "kotlinc-jvm";
-    }
 }

compiler/cli/src/org/jetbrains/kotlin/cli/common/CLICompiler.java

@@ -115,7 +115,7 @@ public abstract class CLICompiler<A extends CommonCompilerArguments> {
         }
 
         if (arguments.help || arguments.extraHelp) {
-            Usage.print(errStream, arguments);
+            Usage.print(errStream, this, arguments);
             return OK;
         }
 
@@ -350,11 +350,19 @@ public abstract class CLICompiler<A extends CommonCompilerArguments> {
     );
 
     private void printVersionIfNeeded(@NotNull MessageCollector messageCollector, @NotNull A arguments) {
-        if (!arguments.version) return;
-
-        messageCollector.report(INFO, "Kotlin Compiler version " + KotlinCompilerVersion.VERSION, null);
+        if (arguments.version) {
+            messageCollector.report(
+                    CompilerMessageSeverity.INFO,
+                    executableScriptFileName() + " " + KotlinCompilerVersion.VERSION +
+                    " (JRE " + System.getProperty("java.runtime.version") + ")",
+                    null
+            );
+        }
     }
 
+    @NotNull
+    public abstract String executableScriptFileName();
+
     /**
      * Useful main for derived command line tools
      */

compiler/cli/src/org/jetbrains/kotlin/cli/common/Usage.java

@@ -29,8 +29,10 @@ class Usage {
     // The magic number 29 corresponds to the similar padding width in javac and scalac command line compilers
     private static final int OPTION_NAME_PADDING_WIDTH = 29;
 
-    public static void print(@NotNull PrintStream target, @NotNull CommonCompilerArguments arguments) {
-        target.println("Usage: " + arguments.executableScriptFileName() + " <options> <source files>");
+    public static <A extends CommonCompilerArguments> void print(
+            @NotNull PrintStream target, @NotNull CLICompiler<A> compiler, @NotNull A arguments
+    ) {
+        target.println("Usage: " + compiler.executableScriptFileName() + " <options> <source files>");
         target.println("where " + (arguments.extraHelp ? "advanced" : "possible") + " options include:");
         for (Class<?> clazz = arguments.getClass(); clazz != null; clazz = clazz.getSuperclass()) {
             for (Field field : clazz.getDeclaredFields()) {

compiler/cli/src/org/jetbrains/kotlin/cli/js/K2JSCompiler.java

@@ -298,4 +298,10 @@ public class K2JSCompiler extends CLICompiler<K2JSCompilerArguments> {
             return MainCallParameters.mainWithoutArguments();
         }
     }
+
+    @NotNull
+    @Override
+    public String executableScriptFileName() {
+        return "kotlinc-js";
+    }
 }

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/K2JVMCompiler.kt

@@ -252,17 +252,14 @@ class K2JVMCompiler : CLICompiler<K2JVMCompilerArguments>() {
         }
     }
 
-    /**
-     * Allow derived classes to add additional command line arguments
-     */
-    override fun createArguments(): K2JVMCompilerArguments {
-        val result = K2JVMCompilerArguments()
+    override fun createArguments(): K2JVMCompilerArguments = K2JVMCompilerArguments().apply {
         if (System.getenv("KOTLIN_REPORT_PERF") != null) {
-            result.reportPerf = true
+            reportPerf = true
         }
-        return result
     }
 
+    override fun executableScriptFileName(): String = "kotlinc-jvm"
+
     companion object {
         private var initStartNanos = System.nanoTime()
         // allows to track GC time for each run when repeated compilation is used

compiler/cli/src/org/jetbrains/kotlin/cli/metadata/K2MetadataCompiler.kt

@@ -89,6 +89,9 @@ class K2MetadataCompiler : CLICompiler<K2MetadataCompilerArguments>() {
         return ExitCode.OK
     }
 
+    // TODO: update this once a launcher script for K2MetadataCompiler is available
+    override fun executableScriptFileName(): String = "kotlinc"
+
     companion object {
         @JvmStatic
         fun main(args: Array<String>) {

compiler/testData/cli/js/version.args

@@ -1 +0,0 @@
--version

compiler/testData/cli/js/version.out

@@ -1,2 +0,0 @@
-info: Kotlin Compiler version $VERSION$
-OK

compiler/testData/cli/jvm/version.args

@@ -1 +0,0 @@
--version

compiler/testData/cli/jvm/version.out

@@ -1,2 +0,0 @@
-info: Kotlin Compiler version $VERSION$
-OK

compiler/testData/integration/ant/js/version/build.log.expected

@@ -3,7 +3,7 @@ Buildfile: [TestData]/build.xml
 
 build:
 [kotlin2js] Compiling [[TestData]/root1] => [[Temp]/out.js]
-[kotlin2js] info: Kotlin Compiler version [KotlinVersion]
+[kotlin2js] info: kotlinc-js [KotlinVersion] (JRE [JREVersion])
 
 BUILD SUCCESSFUL
 Total time: [time]

compiler/testData/integration/ant/jvm/additionalArguments/build.log.expected

@@ -5,7 +5,7 @@ build:
   [kotlinc] Compiling [[TestData]/hello.kt] => [[Temp]/hello.jar]
     [javac] Compiling 1 source file to [Temp]
     [javac] Compiling [[TestData]] => [[Temp]]
-    [javac] info: Kotlin Compiler version [KotlinVersion]
+    [javac] info: kotlinc-jvm [KotlinVersion] (JRE [JREVersion])
     [javac] Running javac...
 
 BUILD SUCCESSFUL

compiler/testData/integration/ant/jvm/version/build.log.expected

@@ -3,7 +3,7 @@ Buildfile: [TestData]/build.xml
 
 build:
   [kotlinc] Compiling [[TestData]/hello.kt] => [[Temp]/hello.jar]
-  [kotlinc] info: Kotlin Compiler version [KotlinVersion]
+  [kotlinc] info: kotlinc-jvm [KotlinVersion] (JRE [JREVersion])
 
 BUILD SUCCESSFUL
 Total time: [time]

compiler/testData/integration/smoke/printVersion/test.compile.expected

@@ -0,0 +1,5 @@
+
+ERR:
+info: kotlinc-jvm [KotlinVersion] (JRE [JREVersion])
+
+Return code: 0

compiler/tests-common/org/jetbrains/kotlin/integration/KotlinIntegrationTestBase.java

@@ -81,6 +81,7 @@ public abstract class KotlinIntegrationTestBase extends TestCaseWithTmpdir {
         content = normalizePath(content, getCompilerLib(), "[CompilerLib]");
         content = normalizePath(content, getKotlinProjectHome(), "[KotlinProjectHome]");
         content = content.replaceAll(Pattern.quote(KotlinCompilerVersion.VERSION), "[KotlinVersion]");
+        content = content.replaceAll("\\(JRE .+\\)", "(JRE [JREVersion])");
         content = StringUtil.convertLineSeparators(content);
         return content;
     }

compiler/tests/org/jetbrains/kotlin/cli/CliTestGenerated.java

@@ -362,12 +362,6 @@ public class CliTestGenerated extends AbstractCliTest {
             doJvmTest(fileName);
         }
 
-        @TestMetadata("version.args")
-        public void testVersion() throws Exception {
-            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/cli/jvm/version.args");
-            doJvmTest(fileName);
-        }
-
         @TestMetadata("warningJdkWithNoJdk.args")
         public void testWarningJdkWithNoJdk() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/cli/jvm/warningJdkWithNoJdk.args");
@@ -515,12 +509,6 @@ public class CliTestGenerated extends AbstractCliTest {
             doJsTest(fileName);
         }
 
-        @TestMetadata("version.args")
-        public void testVersion() throws Exception {
-            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/cli/js/version.args");
-            doJsTest(fileName);
-        }
-
         @TestMetadata("withFolderAsLib.args")
         public void testWithFolderAsLib() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/cli/js/withFolderAsLib.args");

compiler/tests/org/jetbrains/kotlin/integration/CompilerSmokeTest.java

@@ -85,5 +85,8 @@ public class CompilerSmokeTest extends CompilerSmokeTestBase {
         assertEquals("compilation failed", 0, runCompiler("inlineOnly.compile", "-include-runtime", "inlineOnly.kt", "-d", jar));
         run("inlineOnly.run", "-cp", jar, "InlineOnly.InlineOnlyKt");
     }
-}
 
+    public void testPrintVersion() throws Exception {
+        runCompiler("test.compile", "-version");
+    }
+}