Warn about paid plugin running buildSearchableOptions and suggest [disabling the task](https://plugins.jetbrains.com/docs/intellij/tools-gradle-intellij-plugin-faq.html#how-to-disable-building-searchable-options).

[hsz]

Pull Request Details

Warn about paid plugin running buildSearchableOptions and suggest disabling the task.

Description

Due to IDE limitations, it is impossible to run the IDE in headless mode to collect searchable options for a paid plugin. As paid plugins require providing a valid license and presenting a UI dialog, it is impossible to handle such a case, and the task will fail. This feature flag displays the given warning when the task is run by a paid plugin.

Such a warning can be disabled using build features:

org.jetbrains.intellij.buildFeature.paidPluginSearchableOptionsWarning = false

Motivation and Context

Warn paid plugin developers about the buildSearchableOptions in advance.

How Has This Been Tested

Manual + integration tests:

• free plugin running the task – nothing happens
• paid plugin with <product-descriptor> defined in the plugin.xml file – emit warning

Types of changes

• Docs change / refactoring / dependency upgrade
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the CONTRIBUTING document.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have included my change in the CHANGELOG.
• I have added tests to cover my changes.
• All new and existing tests passed.