Event dispatch thread is blocked with processing of file events

[nicity]

Hello,
Our user support is faced with many performance problems attributed to gitignore plugin.
Below are several YouTrack problem links and stack trace.

As plugin developer I recommend to do refresh of CacheMap on bulk file events
(see BulkFileListener and MessageBus.connect().subscribe(VirtualFileManager.VFS_CHANGES, myChangedFilesCollector)).

https://youtrack.jetbrains.com/issue/IDEA-171850
https://youtrack.jetbrains.com/issue/IDEA-171637#comment=27-2119141

"AWT-EventQueue-0 2017.1.1#IU-171.4073.35 IDEA, eap:false, os:Linux 4.9.0-2-amd64, java-version:JetBrains s.r.o 1.8.0_112-release-736-b16" prio=0 tid=0x0 nid=0x0 runnable
java.lang.Thread.State: RUNNABLE

at com.intellij.openapi.vfs.newvfs.impl.VirtualFileSystemEntry.appendPathOnFileSystem(VirtualFileSystemEntry.java:170)
at com.intellij.openapi.vfs.newvfs.impl.VirtualFileSystemEntry.appendPathOnFileSystem(VirtualFileSystemEntry.java:170)
at com.intellij.openapi.vfs.newvfs.impl.VirtualFileSystemEntry.appendPathOnFileSystem(VirtualFileSystemEntry.java:170)
at com.intellij.openapi.vfs.newvfs.impl.VirtualFileSystemEntry.appendPathOnFileSystem(VirtualFileSystemEntry.java:170)
at com.intellij.openapi.vfs.newvfs.impl.VirtualFileSystemEntry.appendPathOnFileSystem(VirtualFileSystemEntry.java:170)
at com.intellij.openapi.vfs.newvfs.impl.VirtualFileSystemEntry.appendPathOnFileSystem(VirtualFileSystemEntry.java:170)
at com.intellij.openapi.vfs.newvfs.impl.VirtualFileSystemEntry.appendPathOnFileSystem(VirtualFileSystemEntry.java:170)
at com.intellij.openapi.vfs.newvfs.impl.VirtualFileSystemEntry.appendPathOnFileSystem(VirtualFileSystemEntry.java:170)
at com.intellij.openapi.vfs.newvfs.impl.VirtualFileSystemEntry.getPath(VirtualFileSystemEntry.java:197)
at mobi.hsz.idea.gitignore.util.Utils$1.compare(Utils.java:435)
at mobi.hsz.idea.gitignore.util.Utils$1.compare(Utils.java:432)
at java.util.TimSort.binarySort(TimSort.java:296)
at java.util.TimSort.sort(TimSort.java:239)
at java.util.Arrays.sort(Arrays.java:1512)
at java.util.ArrayList.sort(ArrayList.java:1454)
at java.util.Collections.sort(Collections.java:175)
at com.intellij.util.containers.ContainerUtil.sort(ContainerUtil.java:1725)
at mobi.hsz.idea.gitignore.util.Utils.ignoreFilesSort(Utils.java:432)
at mobi.hsz.idea.gitignore.util.CacheMap.isFileIgnored(CacheMap.java:267)
at mobi.hsz.idea.gitignore.IgnoreManager.isFileIgnored(IgnoreManager.java:321)
at mobi.hsz.idea.gitignore.vcs.IgnoreFileStatusProvider.getFileStatus(IgnoreFileStatusProvider.java:69)
at com.intellij.openapi.vcs.impl.FileStatusManagerImpl.calcStatus(FileStatusManagerImpl.java:140)
at com.intellij.openapi.vcs.impl.FileStatusManagerImpl.getStatus(FileStatusManagerImpl.java:275)
at com.intellij.openapi.vcs.impl.LineStatusTrackerManager.a(LineStatusTrackerManager.java:269)
at com.intellij.openapi.vcs.impl.LineStatusTrackerManager.a(LineStatusTrackerManager.java:244)
at com.intellij.openapi.vcs.impl.LineStatusTrackerManager.b(LineStatusTrackerManager.java:212)
at com.intellij.openapi.vcs.impl.LineStatusTrackerManager.access$1600(LineStatusTrackerManager.java:67)
at com.intellij.openapi.vcs.impl.LineStatusTrackerManager$MyFileStatusListener.fileStatusesChanged(LineStatusTrackerManager.java:419)
at com.intellij.openapi.vcs.impl.FileStatusManagerImpl.fileStatusesChanged(FileStatusManagerImpl.java:216)
at mobi.hsz.idea.gitignore.util.CacheMap.refresh(CacheMap.java:194)
at mobi.hsz.idea.gitignore.util.CacheMap.cleanup(CacheMap.java:180)
at mobi.hsz.idea.gitignore.IgnoreManager$1.fileDeleted(IgnoreManager.java:171)
at sun.reflect.GeneratedMethodAccessor168.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.util.EventDispatcher.dispatch(EventDispatcher.java:99)
at com.intellij.util.EventDispatcher.access$200(EventDispatcher.java:35)
at com.intellij.util.EventDispatcher$2.invoke(EventDispatcher.java:79)
at com.sun.proxy.$Proxy19.fileDeleted(Unknown Source)
at com.intellij.openapi.vfs.impl.BulkVirtualFileListenerAdapter.fireAfter(BulkVirtualFileListenerAdapter.java:85)
at com.intellij.openapi.vfs.impl.BulkVirtualFileListenerAdapter.after(BulkVirtualFileListenerAdapter.java:56)

[hsz]

@nicity Thank you for reporting. It's a duplicate of #358 - please follow this thread.