IDEA-CR-51235: vcs-ignore: add registry flag to disable ignored to exclude...

IDEA-CR-51235: vcs-ignore: add registry flag to disable ignored to exclude synchronization (IDEA-219152)

Processing file events may affects overall performance and may lead to EDT freezes. Introduce registry flag which disable event processing in IgnoredToExcludedSynchronizer component.

(cherry picked from commit 23191b33bc202648ebcf7a8ccf1a496f752cc0ef)

GitOrigin-RevId: 8898a49774401e09a510facaac612d92e3b86243

platform/dvcs-impl/src/com/intellij/dvcs/ignore/IgnoredToExcludedSynchronizer.kt

@@ -54,6 +54,7 @@ class IgnoredToExcludedSynchronizer(project: Project, parentDisposable: Disposab
   }
 
   private fun updateNotificationState() {
+    if (synchronizationTurnOff()) return
     // in case if the project roots changed (e.g. by build tools) then the directories shown in notification can be outdated.
     // filter directories which excluded or containing source roots and expire notification if needed.
     if (notificationNotPresent()) return
@@ -94,6 +95,7 @@ class IgnoredToExcludedSynchronizer(project: Project, parentDisposable: Disposab
 
   override fun updateFinished(ignoredPaths: Collection<FilePath>) {
     ProgressManager.checkCanceled()
+    if (synchronizationTurnOff()) return
     if (!Registry.`is`("vcs.propose.add.ignored.directories.to.exclude", true)) return
     if (!VcsConfiguration.getInstance(project).MARK_IGNORED_AS_EXCLUDED && wasAskedBefore()) return
 
@@ -136,6 +138,7 @@ class IgnoredToExcludedSynchronizer(project: Project, parentDisposable: Disposab
     }
   }
 
+  private fun synchronizationTurnOff() = !Registry.`is`("vcs.enable.add.ignored.directories.to.exclude", true)
   private fun allowShowNotification() = Registry.`is`("vcs.propose.add.ignored.directories.to.exclude", true)
 
   private fun getProjectSourceRoots() =

platform/util/resources/misc/registry.properties

@@ -530,6 +530,8 @@ vcs.code.analysis.before.checkin.show.only.new.threshold.description=Show only n
 vcs.process.externally.added.files=true
 vcs.process.externally.added.files.description=Process externally added files. Add such files to VCS automatically or prompt user.
 
+vcs.enable.add.ignored.directories.to.exclude=false
+vcs.enable.add.ignored.directories.to.exclude.description=Enables synchronization of ignored (but not excluded) directories with excluded directories on VCS ignored files rescan.
 vcs.propose.add.ignored.directories.to.exclude=false
 vcs.propose.add.ignored.directories.to.exclude.description=Show notification with proposal to add ignored (but not excluded) directories to exclude.
 

plugins/git4idea/tests/git4idea/ignore/GitIgnoredToExcludedSynchronizerTest.kt

@@ -23,6 +23,7 @@ class GitIgnoredToExcludedSynchronizerTest : GitSingleRepoTest() {
 
   override fun setUp() {
     super.setUp()
+    Registry.get("vcs.enable.add.ignored.directories.to.exclude").setValue(true, testRootDisposable)
     Registry.get("vcs.propose.add.ignored.directories.to.exclude").setValue(true, testRootDisposable)
   }