New Copyright in markdown files

CODE_OF_CONDUCT.md

@@ -1,6 +1,7 @@
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 title: Code of Conduct
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ## Code of Conduct
 

CONTRIBUTING.md

@@ -1,6 +1,7 @@
 ---
 title: Contributing to the IntelliJ Platform SDK
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 This document describes our contribution guidelines for the open source IntelliJ Platform SDK documentation and sample code.
 Before you begin contributing content to the SDK, please read this page thoroughly as well as the [Code of Conduct](/CODE_OF_CONDUCT.md) and [License](https://github.com/JetBrains/intellij-sdk-docs/blob/master/LICENSE.txt) documents.

appendix/resources/consulting.md

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 title: Consulting
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 The following independent companies and individuals provide paid plugin consulting and development services.
 

appendix/resources/useful_links.md

@@ -3,6 +3,7 @@ title: Useful Links
 redirect_from:
   - /resources.html
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 The following links represent useful resources for working with the _IntelliJ Platform_ and creating plugins.
 

basics.md

@@ -1,6 +1,7 @@
 ---
 title: Quick Start Guide
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 This section covers the basics of working with *IntelliJ Platform*.
 It will familiarize you with the working environment, project structure, and frequently used API components.

basics/action_system.md

@@ -1,6 +1,7 @@
 ---
 title: Action System
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ## Introduction
 The actions system is an extension point that allows plugins to add their items to IntelliJ Platform-based IDE menus and toolbars. 

basics/architectural_overview/documents.md

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 title: Documents
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 A document is an editable sequence of Unicode characters, which typically corresponds to the text contents of a virtual file. Line breaks in a document are _always_ normalized to `\n`. The *IntelliJ Platform* handles encoding and line break conversions when loading and saving documents transparently.
 

basics/architectural_overview/file_view_providers.md

@@ -1,6 +1,7 @@
 ---
 title: File View Providers
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 A file view provider ([`FileViewProvider`](upsource:///platform/core-api/src/com/intellij/psi/FileViewProvider.java)) manages access to multiple PSI trees within a single file.
 

basics/architectural_overview/files.md

@@ -1,6 +1,7 @@
 ---
 title: Files
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 * [Virtual File System](/basics/virtual_file_system.md)
 * [Virtual Files](virtual_file.md)

basics/architectural_overview/general_threading_rules.md

@@ -1,6 +1,7 @@
 ---
 title: General Threading Rules
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ## Read/write lock
 

basics/architectural_overview/modifying_psi.md

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 title: Modifying the PSI
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 The PSI is a read-write representation of the source code as a tree of elements corresponding to the structure of a source
 file. You can modify the PSI by *adding*, *replacing*, and *deleting* PSI elements.

basics/architectural_overview/navigating_psi.md

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 ---
 title: Navigating the PSI
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 There are three main ways to navigate the PSI: *top-down*, *bottom-up*, and using *references*. In the first scenario, 
 you have a PSI file or another higher-level element (for example, a method), and you need to find all elements that match a

basics/architectural_overview/psi.md

@@ -1,6 +1,7 @@
 ---
 title: Program Structure Interface (PSI)
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 The Program Structure Interface, commonly referred to as just PSI, is the layer in the _IntelliJ Platform_ that is responsible for parsing files and creating the syntactic and semantic code model that powers so many of the platform's features.
 

basics/architectural_overview/psi_elements.md

@@ -1,6 +1,7 @@
 ---
 title: PSI Elements
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 A PSI (Program Structure Interface) file represents a hierarchy of PSI elements (so-called _PSI trees_). A single PSI file (itself being a PSI element) may contain several PSI trees in specific programming languages. A PSI element, in its turn, can have child PSI elements.
 

basics/architectural_overview/psi_files.md

@@ -1,6 +1,7 @@
 ---
 title: PSI Files
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 A PSI (Program Structure Interface) file is the root of a structure representing the contents of a file as a hierarchy of elements in a particular programming language.
 

basics/architectural_overview/psi_references.md

@@ -1,6 +1,7 @@
 ---
 title: PSI References
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 A *reference* in a PSI tree is an object that represents a link from a *usage* of a certain element in the code
 to the corresponding *declaration*. *Resolving* a reference means locating the declaration to which a specific usage

basics/architectural_overview/virtual_file.md

@@ -1,6 +1,7 @@
 ---
 title: Virtual Files
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 A virtual file [`VirtualFile`](upsource:///platform/core-api/src/com/intellij/openapi/vfs/VirtualFile.java) is the *IntelliJ Platform's* representation of a file in a file system (VFS). Most commonly, a virtual file is a file in your local file system. However, the *IntelliJ Platform* supports multiple pluggable file system implementations, so virtual files can also represent classes in a JAR file, old revisions of files loaded from a version control repository, and so on.
 

basics/getting_started.md

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 title: Creating Your First Plugin
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 This documentation section will help you get started with developing plugins for the *IntelliJ Platform*. You can use either [IntelliJ IDEA Community Edition](https://www.jetbrains.com/idea/download/) or [IntelliJ IDEA Ultimate](https://www.jetbrains.com/idea/download/) as your IDE (it is highly recommended to use the latest available version).  Both include the complete set of plugin development tools. To become more familiar with *IntelliJ IDEA*, please refer to the [IntelliJ IDEA Web Help](https://www.jetbrains.com/idea/help/).
 

basics/getting_started/creating_plugin_project.md

@@ -3,6 +3,7 @@ title: Creating a Plugin Project
 redirect_from:
   - /basics/getting_started/creating_an_action.html
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 > **NOTE** For new projects, it is recommend to use [Gradle](/tutorials/build_system.md).
 

basics/getting_started/deploying_plugin.md

@@ -1,6 +1,7 @@
 ---
 title: Deploying a Plugin
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 Before your custom plugin can be used, it must be deployed: built, installed, and then enabled using Plugin Manager.
 

basics/getting_started/plugin_compatibility.md

@@ -1,6 +1,7 @@
 ---
 title: Plugin Compatibility with IntelliJ Platform Products
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 <style>
   table {

basics/getting_started/publishing_plugin.md

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 ---
 title: Publishing a plugin
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 When your plugin is ready you can publish it to a plugin repository so that other users can install it. 
 You can choose to publish it on the [JetBrains Plugin Repository](https://plugins.jetbrains.com)

basics/getting_started/running_and_debugging_a_plugin.md

@@ -1,6 +1,7 @@
 ---
 title: Running and Debugging a Plugin
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 It's possible to run and debug a plugin directly from the *IntelliJ IDEA*. You need a configured special profile (a *Plugin* Run/Debug configuration) that specifies the plugin module, VM parameters and other specific options. When you run such profile, it launches the IDE with your plugin installed.
 

basics/getting_started/setting_up_environment.md

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 ---
 title: Setting Up a Development Environment
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ### Preliminary Steps
 

basics/getting_started/update_plugins_format.md

@@ -1,6 +1,7 @@
 ---
 title: Publishing a Plugin to a Custom Plugin Repository
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 If you intend to use a plugin repository _other than_ the [JetBrains Plugin Repository](https://plugins.jetbrains.com), 
 you will need to:

basics/getting_started/using_dev_kit.md

@@ -1,6 +1,7 @@
 ---
 title: Using DevKit
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 > **NOTE** For new projects, it is recommend to use [Gradle](/tutorials/build_system.md).
 

basics/ide_development_instance.md

@@ -3,6 +3,7 @@ title: IDE Development Instances
 redirect_from:
   - /basics/settings_caches_logs.html
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 A JetBrains feature for developing plugins is running or debugging a plugin project from within an IntelliJ Platform-based IDE such as IntelliJ IDEA. 
 Selecting the [**Run**](getting_started/running_and_debugging_a_plugin.md) menu for a DevKit-based project, or the [**runIde**](/tutorials/build_system/prerequisites.md#running-a-simple-gradle-based-intellij-platform-plugin) task for a Gradle-based project will launch a _Development Instance_ of the IDE with the plugin enabled.

basics/indexing_and_psi_stubs.md

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 ---
 title: Indexing and PSI Stubs
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ## Indices
 

basics/indexing_and_psi_stubs/file_based_indexes.md

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 ---
 title: File-based Indexes
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 File-based indexes are based on a Map/Reduce architecture. Each index has a certain type of key and a certain type of value.
 

basics/indexing_and_psi_stubs/stub_indexes.md

@@ -1,6 +1,7 @@
 ---
 title: Stub Indexes
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ## Stub Trees
 

basics/intellij_coding_guidelines.md

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 ---
 title: IntelliJ Platform Coding Guidelines
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 If you are writing code that you would like to contribute to the IntelliJ Platform (either as a patch or as a plugin), following these guidelines will make it easier for the JetBrains development team to review and accept your changes.
 

basics/persisting_sensitive_data.md

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 title: Persisting Sensitive Data
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 The Credentials Store API allows you to securely store sensitive user data, like passwords, server URLs, etc.
 

basics/persisting_state_of_components.md

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 ---
 title: Persisting State of Components
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 The *IntelliJ Platform* provides an API that allows components or services to persist their state between restarts of the IDE. You can use either a simple API to persist a few values, or persist the state of more complicated components using the [`PersistentStateComponent`](upsource:///platform/core-api/src/com/intellij/openapi/components/PersistentStateComponent.java) interface.
 

basics/platform_contributions.md

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 ---
 title: Contributing to the IntelliJ Platform
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 Please make sure to read the [Code of Conduct](../CODE_OF_CONDUCT.md).
 

basics/plugin_structure.md

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 title: Plugin Structure
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 Click the following topics to learn more about the plugin system structure and plugin lifecycles:
 

basics/plugin_structure/dynamic_plugins.md

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 ---
 title: Dynamic Plugins
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 > **WARNING** Please note that the information on this page is preliminary and might change.
 

basics/plugin_structure/plugin_actions.md

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 ---
 title: Plugin Actions
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 The *IntelliJ Platform* provides the concept of _actions_. An action is a class, derived from the [`AnAction`](upsource:///platform/editor-ui-api/src/com/intellij/openapi/actionSystem/AnAction.java) class, whose `actionPerformed()` method is called when the menu item or toolbar button is selected.
 

basics/plugin_structure/plugin_class_loaders.md

@@ -1,6 +1,7 @@
 ---
 title: Plugin Class Loaders
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 A separate class loader is used to load the classes of each plugin. This allows each plugin to use a different version of a library, even if the same library is used by the IDE itself or by another plugin.
 

basics/plugin_structure/plugin_components.md

@@ -1,6 +1,7 @@
 ---
 title: Plugin Components
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 > **WARNING** When writing new plugins, you should avoid creating components, and you should migrate existing components in your plugins to services, extensions or listeners (see below).
 

basics/plugin_structure/plugin_configuration_file.md

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 ---
 title: Plugin Configuration File - plugin.xml
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 The following is a sample plugin configuration file. This sample showcases and describes all elements that can be used in the `plugin.xml` file.
 Additional information about configuring `<actions>` is available in the [Actions](/basics/action_system.md#registering-actions) section in Part II.

basics/plugin_structure/plugin_content.md

@@ -1,6 +1,7 @@
 ---
 title: Plugin Content
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 The plugin `jar` file must contain:
 - the configuration file (`META-INF/plugin.xml`) ([Plugin Configuration File](plugin_configuration_file.md))

basics/plugin_structure/plugin_dependencies.md

@@ -1,6 +1,7 @@
 ---
 title: Plugin Dependencies
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 A plugin may depend on classes from other plugins, either bundled, third-party, or by the same author.
 This document describes the syntax for declaring plugin dependencies and optional plugin dependencies.

basics/plugin_structure/plugin_extension_points.md

@@ -1,6 +1,7 @@
 ---
 title: Plugin Extension Points
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 > **NOTE** See [Plugin Extensions](plugin_extensions.md) for _using_ extension points in your plugin.
 

basics/plugin_structure/plugin_extensions.md

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     /basics/plugin_structure/plugin_extensions_and_extension_points.html
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 _Extensions_ are the most common way for a plugin to extend the functionality of the IntelliJ Platform in a way
 that is not as straightforward as adding an action to a menu or toolbar. The following are some of the most common

basics/plugin_structure/plugin_icon_file.md

@@ -1,6 +1,7 @@
 ---
 title: Plugin Logo
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 Beginning in version 2019.1, the IntelliJ Platform supports representing a plugin with a logo.
 A _Plugin Logo_ is intended to be a unique representation of a plugin's functionality, technology, or company.

basics/plugin_structure/plugin_listeners.md

@@ -1,6 +1,7 @@
 ---
 title: Plugin Listeners
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 > **NOTE** Defining listeners in `plugin.xml` is supported starting with version 2019.3 of the platform.
 

basics/plugin_structure/plugin_services.md

@@ -1,6 +1,7 @@
 ---
 title: Plugin Services
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 A _service_ is a plugin component loaded on demand when your plugin calls the `getService()` method of the [`ServiceManager`](upsource:///platform/core-api/src/com/intellij/openapi/components/ServiceManager.java) class.
 

basics/project_structure.md

@@ -1,6 +1,7 @@
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 title: Project Structure
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 <!--TODO split into parts accordingly to the table of contents-->
 

basics/psi_cookbook.md

@@ -1,6 +1,7 @@
 ---
 title: PSI Cookbook
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 This page gives a list of recipes for the most common operations for working with the PSI (Program Structure Interface). Unlike [Developing Custom Language Plugins](/reference_guide/custom_language_support.md), it talks about working with the PSI of existing languages (such as Java).
 

basics/run_configurations.md

@@ -1,6 +1,7 @@
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 title: Run Configurations
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 *Run Configurations* allow users to run a certain type of external processes from within the IDE, e.g. a script, an application, a server, etc. You can provide UI for the user to specify execution options, as well as an option to create a run configuration based on a specific location in the source code.
 

basics/run_configurations/run_configuration_execution.md

@@ -1,6 +1,7 @@
 ---
 title: Execution
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 The standard execution of a run action goes through the following steps:
 

basics/run_configurations/run_configuration_management.md

@@ -1,6 +1,7 @@
 ---
 title: Run Configuration Management
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 This document describes main classes to work with run configurations and common use case.
 

basics/testing_plugins/light_and_heavy_tests.md

@@ -1,6 +1,7 @@
 ---
 title: Light and Heavy Tests
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 Plugin tests run in a real, rather than mocked, *IntelliJ Platform* environment and use real implementations for most of the application and project components/services. 
 

basics/testing_plugins/test_project_and_testdata_directories.md

@@ -1,6 +1,7 @@
 ---
 title: Test Project and Testdata Directories
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 The test fixture creates a *test project* environment. Unless you customize the project creation, the test project will have one module with one source root called `src`. The files for the test project exist either in a temporary directory or in an in-memory file system, depending on which implementation of [`TempDirTestFixture`](upsource:///platform/testFramework/src/com/intellij/testFramework/fixtures/TempDirTestFixture.java) is used.
 

basics/testing_plugins/testing_highlighting.md

@@ -1,6 +1,7 @@
 ---
 title: Testing Highlighting
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 A common task when writing plugin tests is testing various kinds of highlighting (inspections, annotators, parser error highlighting, etc.). The *IntelliJ Platform* provides a dedicated utility and markup format for this task.
 

basics/testing_plugins/testing_plugins.md

@@ -3,6 +3,7 @@ title: Testing Plugins
 redirect_from:
   - /basics/testing_plugins.html
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 Most of the tests in the *IntelliJ Platform* codebase are *model level functional tests*. What this means is the following:
 

basics/testing_plugins/tests_and_fixtures.md

@@ -1,6 +1,7 @@
 ---
 title: Tests and Fixtures
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 The *IntelliJ Platform* testing infrastructure is not tied to any specific test framework. In fact, the IntelliJ IDEA Team uses JUnit, TestNG and Cucumber for testing different parts of the project. However, most of the tests are written using JUnit 3.
 

basics/testing_plugins/writing_tests.md

@@ -1,6 +1,7 @@
 ---
 title: Writing Tests
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+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 In most cases, once you have the necessary files copied to the test project and loaded into the in-memory editor, writing the test itself involves invoking your plugin code and has few dependencies on the test framework.
 

basics/types_of_plugins.md

@@ -1,6 +1,7 @@
 ---
 title: Main Types of Plugins
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 Products based on the *IntelliJ Platform* can be modified and adjusted for custom purposes by adding plugins. All downloadable plugins are available at the [JetBrains Plugin Repository](https://plugins.jetbrains.com/).
 

basics/virtual_file_system.md

@@ -1,6 +1,7 @@
 ---
 title: Virtual File System
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 The virtual file system (VFS) is a component of *IntelliJ Platform* that encapsulates most of its activity for working with files. It serves the following main purposes:
 

faq.md

@@ -1,7 +1,7 @@
 ---
 title: Plugin Development FAQ
 ---
-
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 This FAQ is a topical index of questions that have been asked (and answered) on our
 [IntelliJ IDEA Open API and Plugin Development forum](https://intellij-support.jetbrains.com/hc/en-us/community/topics/200366979-IntelliJ-IDEA-Open-API-and-Plugin-Development).

intro/about.md

@@ -1,6 +1,7 @@
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 title: About this Guide
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 This guide is split into several parts, similar to a text book. Each part builds on the content of the previous part, but it is not necessary to read the guide in order. The [Key Topics](key_topics.md) page aims to link to the pages that are necessary to be able to understand the architecture and get started building plugins.
 

intro/getting_help.md

@@ -1,6 +1,7 @@
 ---
 title: Getting Help
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ## Problems with the guide
 

intro/intellij_platform.md

@@ -1,6 +1,7 @@
 ---
 title: What is the IntelliJ Platform?
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 The _IntelliJ Platform_ is not a product in and of itself but provides a platform for building IDEs. It is used to power JetBrains products such as [IntelliJ IDEA](https://www.jetbrains.com/idea/). It is also Open Source and can be used by third parties to build IDEs, such as [Android Studio](https://developer.android.com/studio/index.html) from Google.
 

intro/key_topics.md

@@ -1,6 +1,7 @@
 ---
 title: Key Topics
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 The _IntelliJ Platform_ is very large, and very capable, and its size and scope can initially be very daunting. This page is intended to list the key topics that a plugin author would be interested in, and provide quick links to the most common extension points.
 

intro/sdk_code_guidelines.md

@@ -1,6 +1,7 @@
 ---
 title: Guidelines for Creating IntelliJ Platform SDK Code Samples
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 This document describes the coding guidelines used for authoring open-source IntelliJ Platform SDK code samples.
 Before you begin, please read this page thoroughly, as well as the [Code of Conduct](/CODE_OF_CONDUCT.md) and [License](https://github.com/JetBrains/intellij-sdk-docs/blob/master/LICENSE.txt) documents.

intro/sdk_style.md

@@ -1,6 +1,7 @@
 ---
 title: Style Guide for SDK Documents
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 This document describes the writing style used in authoring open source IntelliJ Platform SDK documentation.
 Before you begin, please read this page thoroughly as well as the [Code of Conduct](/CODE_OF_CONDUCT.md) and [License](https://github.com/JetBrains/intellij-sdk-docs/blob/master/LICENSE.txt) documents.
@@ -29,6 +30,7 @@ In other words, to convert a `.md` file to HTML, it should look like this:
 ```yaml
 ---
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 Lorem ipsum...
 ```

platform/fundamentals.md

@@ -4,6 +4,7 @@ redirect_from:
   - /reference_guide.html
   - /basics/architectural_overview.html
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 This section describes the low level fundamental building blocks of the _IntelliJ Platform_:
 

plugin_repository/index.md

@@ -12,6 +12,7 @@ redirect_from:
   - /plugin_repository/custom_channels.html
 
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 JetBrains provides an official plugins repository [plugins.jetbrains.com](https://plugins.jetbrains.com) for all IntelliJ Platform-based IDEs, 
 as well as TeamCity (limited functionality).

products/android_studio.md

@@ -1,6 +1,7 @@
 ---
 title: Android Studio Plugin Development
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ## Introduction 
 Android Studio plugins extend or add functionality to the [Android Studio IDE](https://developer.android.com/studio).

products/app_code.md

@@ -1,6 +1,7 @@
 ---
 title: AppCode Plugin Development
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ## Introduction
 Plugin projects targeting [AppCode](https://www.jetbrains.com/objc/) can be developed using IntelliJ IDEA with the `gradle-intellij-plugin`.

products/clion.md

@@ -1,6 +1,7 @@
 ---
 title: CLion Plugin Development
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ## Introduction
 [CLion](https://www.jetbrains.com/clion/) is an IntelliJ Platform-based product.

products/data_grip.md

@@ -1,6 +1,7 @@
 ---
 title: DataGrip Plugin Development
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ## Introduction
 [DataGrip](https://www.jetbrains.com/datagrip/) is an IntelliJ Platform-based product.

products/dev_alternate_products.md

@@ -1,6 +1,7 @@
 ---
 title: Plugins Targeting IntelliJ Platform-Based IDEs 
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ## Introduction 
 Plugin projects can target IDEs other than IntelliJ IDEA, as long as the products are based on the [IntelliJ Platform](/intro/intellij_platform.md).

products/goland.md

@@ -1,6 +1,7 @@
 ---
 title: GoLand Plugin Development
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ## Introduction
 [GoLand](https://www.jetbrains.com/go/) is an IntelliJ Platform-based product.

products/idea.md

@@ -1,6 +1,7 @@
 ---
 title: IntelliJ IDEA
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 * [Tomcat Integration](../reference_guide/tomcat_integration.md)
 * [Spring API](../reference_guide/frameworks_and_external_apis/spring_api.md)

products/phpstorm/existing_plugins.md

@@ -3,6 +3,7 @@ title: Example PhpStorm Third Party Plugins
 redirect_from:
   - /phpstorm/existing_plugins.html
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 This page lists some example PhpStorm plugins created by third party developers.
 

products/phpstorm/php_open_api.md

@@ -3,6 +3,7 @@ title: PHP Open API
 redirect_from:
   - /phpstorm/php_open_api.html
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ## Using php-openapi
 

products/phpstorm/phpstorm.md

@@ -5,6 +5,7 @@ redirect_from:
   - /phpstorm/setting_up_environment.html
   - /products/phpstorm/setting_up_environment.html
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ## Introduction
 [PhpStorm](https://www.jetbrains.com/phpstorm/) is an IntelliJ Platform-based product. 

products/pycharm.md

@@ -1,6 +1,7 @@
 ---
 title: PyCharm Plugin Development
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ## Introduction
 [PyCharm](https://www.jetbrains.com/pycharm/) is an IntelliJ Platform-based product.

products/rider.md

@@ -1,6 +1,7 @@
 ---
 title: Rider Plugin Development
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ## Introduction 
 Rider plugins are generally used to expose the functionality of a ReSharper plugin.

products/rubymine.md

@@ -1,6 +1,7 @@
 ---
 title: RubyMine Plugin Development
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ## Introduction
 [RubyMine](https://www.jetbrains.com/ruby/) is an IntelliJ Platform-based product.

products/webstorm.md

@@ -1,6 +1,7 @@
 ---
 title: WebStorm Plugin Development
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ## Introduction
 [WebStorm](https://www.jetbrains.com/webstorm/) is an IntelliJ Platform-based product.

reference_guide/api_changes/api_changes_list_2016.md

@@ -1,6 +1,7 @@
 ---
 title: Incompatible Changes in IntelliJ Platform and Plugins API 2016.*
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 <!--
 See the note on how to document new problems on the main page reference_guide/api_changes_list.md 

reference_guide/api_changes/api_changes_list_2017.md

@@ -1,6 +1,7 @@
 ---
 title: Incompatible Changes in IntelliJ Platform and Plugins API 2017.*
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 <!--
 See the note on how to document new problems on the main page reference_guide/api_changes_list.md 

reference_guide/api_changes/api_changes_list_2018.md

@@ -1,6 +1,7 @@
 ---
 title: Incompatible Changes in IntelliJ Platform and Plugins API 2018.*
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 <!--
 

reference_guide/api_changes/api_changes_list_2019.md

@@ -1,6 +1,7 @@
 ---
 title: Incompatible Changes in IntelliJ Platform and Plugins API 2019.*
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 <!--
 Before documenting a breaking API change, please, make sure that the change cannot be avoided 

reference_guide/api_changes/api_changes_list_2020.md

@@ -1,6 +1,7 @@
 ---
 title: Incompatible Changes in IntelliJ Platform and Plugins API 2020.*
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 <!--
 Before documenting a breaking API change, please, make sure that the change cannot be avoided 

reference_guide/api_changes_list.md

@@ -1,6 +1,7 @@
 ---
 title: Incompatible Changes in IntelliJ Platform and Plugins API
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 <!--
 =============== DO NOT RENAME OR MOVE THIS FILE ===============

reference_guide/api_notable/api_notable.md

@@ -1,6 +1,7 @@
 ---
 title: Notable Changes and Features in IntelliJ Platform and Plugins API
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 The following pages list notable changes and new features in IDE releases.
 

reference_guide/api_notable/api_notable_list_2018.md

@@ -1,6 +1,7 @@
 ---
 title: Notable Changes in IntelliJ Platform and Plugins API 2018.*
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 # 2018.3 
 

reference_guide/api_notable/api_notable_list_2019.md

@@ -1,6 +1,7 @@
 ---
 title: Notable Changes in IntelliJ Platform and Plugins API 2019.*
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 # 2019.3 
 

reference_guide/api_notable/api_notable_list_2020.md

@@ -1,6 +1,7 @@
 ---
 title: Notable Changes in IntelliJ Platform and Plugins API 2020.*
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 We've published our roadmap for the IntelliJ Platform for 2020: [Part I](https://blog.jetbrains.com/idea/2019/12/intellij-platform-roadmap-for-2020/) [Part II](https://blog.jetbrains.com/idea/2020/01/intellij-based-ide-features-roadmap-for-2020/)
 

reference_guide/color_scheme_management.md

@@ -1,6 +1,7 @@
 ---
 title: Color Scheme Management
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 # Preface
 

reference_guide/custom_language_support.md

@@ -1,7 +1,7 @@
 ---
 title: Custom Language Support
 ---
-
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 *IntelliJ Platform* is a powerful platform for building development tools targeting *any* language.
 Most of IDE features consist of language-independent and language-specific parts, and you can support a particular feature for your language with a small amount of effort:

reference_guide/custom_language_support/additional_minor_features.md

@@ -1,6 +1,7 @@
 ---
 title: Additional Minor Features
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 A number of minor features are listed in the following format:
 

reference_guide/custom_language_support/code_completion.md

@@ -1,6 +1,7 @@
 ---
 title: Code Completion
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 There are two main types of code completion that can be provided by custom language plugins: reference completion and contributor-based completion.
 

reference_guide/custom_language_support/code_formatting.md

@@ -1,6 +1,7 @@
 ---
 title: Code Formatter
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 The IntelliJ Platform includes a powerful framework for implementing custom language formatters.
 In this framework, the plugin specifies the *constraints* on the spacing between different syntax elements, and the formatting engine, provided by the IDE, calculates the smallest number of whitespace modifications that need to be performed on the file to make it match the constraints.

reference_guide/custom_language_support/code_inspections_and_intentions.md

@@ -1,6 +1,7 @@
 ---
 title: Code Inspections and Intentions
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 ### Inspections
 

reference_guide/custom_language_support/documentation.md

@@ -1,6 +1,7 @@
 ---
 title: Documentation
 ---
+<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
 
 To provide different kinds of documentation support (tooltips on **Ctrl-hover**, quick documentation popup etc.), the plugin needs to provide an implementation of the
 [`DocumentationProvider`](upsource:///platform/analysis-api/src/com/intellij/lang/documentation/DocumentationProvider.java)