UI to enable/disable compiler daemon

idea/src/org/jetbrains/kotlin/idea/PluginStartupComponent.java

@@ -16,6 +16,7 @@
 
 package org.jetbrains.kotlin.idea;
 
+import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.application.PathMacros;
 import com.intellij.openapi.components.ApplicationComponent;
 import org.jetbrains.annotations.NotNull;
@@ -31,6 +32,10 @@ import java.io.IOException;
 public class PluginStartupComponent implements ApplicationComponent {
     private static final String KOTLIN_BUNDLED = "KOTLIN_BUNDLED";
 
+    public static PluginStartupComponent getInstance() {
+        return ApplicationManager.getApplication().getComponent(PluginStartupComponent.class);
+    }
+
     @Override
     @NotNull
     public String getComponentName() {

idea/src/org/jetbrains/kotlin/idea/compiler/configuration/KotlinBuildProcessParametersProvider.kt

@@ -27,6 +27,9 @@ public class KotlinBuildProcessParametersProvider(private val compilerWorkspaceS
         if (!compilerWorkspaceSettings.incrementalCompilationEnabled) {
             res.add("-Dkotlin.incremental.compilation=false")
         }
+        if (compilerWorkspaceSettings.enableDaemon) {
+            res.add("-Dkotlin.daemon.enabled")
+        }
         kotlinPluginStartupComponent.aliveFlagPath.let {
             if (!it.isBlank()) {
                 // TODO: consider taking the property name from compiler/rmi-interface (check whether dependency will be not too heavy)

idea/src/org/jetbrains/kotlin/idea/compiler/configuration/KotlinCompilerConfigurableTab.form

@@ -3,7 +3,7 @@
   <grid id="27dc6" binding="contentPane" layout-manager="GridLayoutManager" row-count="4" column-count="1" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
     <margin top="0" left="0" bottom="0" right="0"/>
     <constraints>
-      <xy x="20" y="20" width="467" height="357"/>
+      <xy x="20" y="20" width="594" height="357"/>
     </constraints>
     <properties/>
     <border type="none"/>
@@ -13,7 +13,7 @@
           <grid row="3" column="0" row-span="1" col-span="1" vsize-policy="6" hsize-policy="1" anchor="0" fill="2" indent="0" use-parent-layout="false"/>
         </constraints>
       </vspacer>
-      <grid id="27e96" layout-manager="GridLayoutManager" row-count="2" column-count="2" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+      <grid id="27e96" layout-manager="GridLayoutManager" row-count="3" column-count="2" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
         <margin top="0" left="0" bottom="0" right="0"/>
         <constraints>
           <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="3" hsize-policy="3" anchor="1" fill="1" indent="0" use-parent-layout="false"/>
@@ -48,6 +48,14 @@
               <dialogCaption resource-bundle="org/jetbrains/kotlin/idea/JetBundle" key="kotlin.compiler.option.additional.command.line.parameters.dialog.title"/>
             </properties>
           </component>
+          <component id="c45a6" class="javax.swing.JCheckBox" binding="keepAliveCheckBox">
+            <constraints>
+              <grid row="2" column="0" row-span="1" col-span="2" vsize-policy="0" hsize-policy="3" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="Keep compiler process alive between invocations (experimental)"/>
+            </properties>
+          </component>
         </children>
       </grid>
       <grid id="2f977" layout-manager="GridLayoutManager" row-count="1" column-count="1" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">

idea/src/org/jetbrains/kotlin/idea/compiler/configuration/KotlinCompilerConfigurableTab.java

@@ -34,6 +34,7 @@ import org.jetbrains.kotlin.cli.common.arguments.CommonCompilerArguments;
 import org.jetbrains.kotlin.cli.common.arguments.K2JSCompilerArguments;
 import org.jetbrains.kotlin.config.CompilerSettings;
 import org.jetbrains.kotlin.idea.JetBundle;
+import org.jetbrains.kotlin.idea.PluginStartupComponent;
 
 import javax.swing.*;
 import javax.swing.event.ChangeEvent;
@@ -58,6 +59,7 @@ public class KotlinCompilerConfigurableTab implements SearchableConfigurable, Co
     private JLabel labelForOutputDirectory;
     private JTextField outputDirectory;
     private JCheckBox copyRuntimeFilesCheckBox;
+    private JCheckBox keepAliveCheckBox;
 
     public KotlinCompilerConfigurableTab(ConfigurableEP ep) {
         this.extPoint = ep;
@@ -109,6 +111,7 @@ public class KotlinCompilerConfigurableTab implements SearchableConfigurable, Co
                ComparingUtils.isModified(outputDirectory, compilerSettings.getOutputDirectoryForJsLibraryFiles()) ||
 
                ComparingUtils.isModified(incrementalCompilationCheckBox, compilerWorkspaceSettings.getIncrementalCompilationEnabled()) ||
+               ComparingUtils.isModified(keepAliveCheckBox, compilerWorkspaceSettings.getEnableDaemon()) ||
 
                ComparingUtils.isModified(generateSourceMapsCheckBox, k2jsCompilerArguments.sourceMap) ||
                isModified(outputPrefixFile, k2jsCompilerArguments.outputPrefix) ||
@@ -124,6 +127,12 @@ public class KotlinCompilerConfigurableTab implements SearchableConfigurable, Co
 
         compilerWorkspaceSettings.setIncrementalCompilationEnabled(incrementalCompilationCheckBox.isSelected());
 
+        boolean oldEnableDaemon = compilerWorkspaceSettings.getEnableDaemon();
+        compilerWorkspaceSettings.setEnableDaemon(keepAliveCheckBox.isSelected());
+        if (keepAliveCheckBox.isSelected() != oldEnableDaemon) {
+            PluginStartupComponent.getInstance().resetAliveFlag();
+        }
+
         k2jsCompilerArguments.sourceMap = generateSourceMapsCheckBox.isSelected();
         k2jsCompilerArguments.outputPrefix = StringUtil.nullize(outputPrefixFile.getText(), true);
         k2jsCompilerArguments.outputPostfix = StringUtil.nullize(outputPostfixFile.getText(), true);
@@ -137,6 +146,7 @@ public class KotlinCompilerConfigurableTab implements SearchableConfigurable, Co
         outputDirectory.setText(compilerSettings.getOutputDirectoryForJsLibraryFiles());
 
         incrementalCompilationCheckBox.setSelected(compilerWorkspaceSettings.getIncrementalCompilationEnabled());
+        keepAliveCheckBox.setSelected(compilerWorkspaceSettings.getEnableDaemon());
 
         generateSourceMapsCheckBox.setSelected(k2jsCompilerArguments.sourceMap);
         outputPrefixFile.setText(k2jsCompilerArguments.outputPrefix);

idea/src/org/jetbrains/kotlin/idea/compiler/configuration/KotlinCompilerWorkspaceSettings.kt

@@ -17,12 +17,12 @@
 package org.jetbrains.kotlin.idea.compiler.configuration
 
 import com.intellij.openapi.components.PersistentStateComponent
-import com.intellij.util.xmlb.XmlSerializerUtil
-import com.intellij.openapi.components.StoragePathMacros
 import com.intellij.openapi.components.State
 import com.intellij.openapi.components.Storage
+import com.intellij.openapi.components.StoragePathMacros
+import com.intellij.util.xmlb.XmlSerializerUtil
 
-State(
+@State(
         name = "KotlinCompilerWorkspaceSettings",
         storages = arrayOf(
                 Storage(file = StoragePathMacros.WORKSPACE_FILE)
@@ -30,6 +30,7 @@ State(
 )
 public class KotlinCompilerWorkspaceSettings() : PersistentStateComponent<KotlinCompilerWorkspaceSettings> {
     public var incrementalCompilationEnabled: Boolean = true
+    public var enableDaemon: Boolean = false
 
     override fun getState(): KotlinCompilerWorkspaceSettings {
         return this