From 35d906d82b9ec58ddd2fd0de691cc4201d9a97ad Mon Sep 17 00:00:00 2001
From: Dmitry Jemerov <yole@jetbrains.com>
Date: Tue, 2 Oct 2018 11:20:36 +0200
Subject: [PATCH] Add extension point for registry keys (IDEA-CR-36577,
 IDEA-177378)

---
 .../registry/RegistryExtensionCollector.kt    | 27 +++++++++++++++++++
 .../src/META-INF/PlatformExtensionPoints.xml  |  2 ++
 .../src/componentSets/Platform.xml            |  4 +++
 3 files changed, 33 insertions(+)
 create mode 100644 platform/platform-impl/src/com/intellij/openapi/util/registry/RegistryExtensionCollector.kt

diff --git a/platform/platform-impl/src/com/intellij/openapi/util/registry/RegistryExtensionCollector.kt b/platform/platform-impl/src/com/intellij/openapi/util/registry/RegistryExtensionCollector.kt
new file mode 100644
index 000000000000..7319b10dcb24
--- /dev/null
+++ b/platform/platform-impl/src/com/intellij/openapi/util/registry/RegistryExtensionCollector.kt
@@ -0,0 +1,27 @@
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+package com.intellij.openapi.util.registry
+
+import com.intellij.openapi.extensions.ExtensionPointName
+import com.intellij.util.xmlb.annotations.Attribute
+
+/**
+ * @author yole
+ */
+class RegistryKeyBean {
+  @JvmField @Attribute("key") val key: String = ""
+  @JvmField @Attribute("description") val description: String = ""
+  @JvmField @Attribute("defaultValue") val defaultValue: String = ""
+  @JvmField @Attribute("restartRequired") val restartRequired: Boolean = false
+
+  companion object {
+    val EP_NAME = ExtensionPointName.create<RegistryKeyBean>("com.intellij.registryKey")
+  }
+}
+
+class RegistryExtensionCollector {
+  init {
+    for (extension in RegistryKeyBean.EP_NAME.extensions) {
+      Registry.addKey(extension.key, extension.description, extension.defaultValue, extension.restartRequired)
+    }
+  }
+}
diff --git a/platform/platform-resources/src/META-INF/PlatformExtensionPoints.xml b/platform/platform-resources/src/META-INF/PlatformExtensionPoints.xml
index 5907e6f8de55..d9d3719af564 100644
--- a/platform/platform-resources/src/META-INF/PlatformExtensionPoints.xml
+++ b/platform/platform-resources/src/META-INF/PlatformExtensionPoints.xml
@@ -323,5 +323,7 @@
                     beanClass="com.intellij.lang.LanguageExtensionPoint">
       <with attribute="implementationClass" implements="com.intellij.injected.editor.InjectedFileChangesHandlerProvider"/>
     </extensionPoint>
+
+    <extensionPoint qualifiedName="com.intellij.registryKey" beanClass="com.intellij.openapi.util.registry.RegistryKeyBean"/>
   </extensionPoints>
 </idea-plugin>
diff --git a/platform/platform-resources/src/componentSets/Platform.xml b/platform/platform-resources/src/componentSets/Platform.xml
index ad06eee5a402..9c000936f4fb 100644
--- a/platform/platform-resources/src/componentSets/Platform.xml
+++ b/platform/platform-resources/src/componentSets/Platform.xml
@@ -147,6 +147,10 @@
     <component>
       <implementation-class>com.intellij.diagnostic.LowMemoryNotifier</implementation-class>
     </component>
+
+    <component>
+      <implementation-class>com.intellij.openapi.util.registry.RegistryExtensionCollector</implementation-class>
+    </component>
   </application-components>
 
   <project-components>