private void executeDelete(@NotNull VirtualFile file) {
if (!file.exists()) {
LOG.error("Deleting a file, which does not exist: " + file.getPath());
return;
}
clearIdCache();
int id = getFileId(file);
final VirtualFile parent = file.getParent();
final int parentId = parent == null ? 0 : getFileId(parent);
if (parentId == 0) {
String rootUrl =
normalizeRootUrl(file.getPath(), (NewVirtualFileSystem) file.getFileSystem());
myRootsLock.writeLock().lock();
try {
myRoots.remove(rootUrl);
myRootsById.remove(id);
FSRecords.deleteRootRecord(id);
} finally {
myRootsLock.writeLock().unlock();
}
} else {
removeIdFromParentList(parentId, id, parent, file);
VirtualDirectoryImpl directory = (VirtualDirectoryImpl) file.getParent();
assert directory != null : file;
directory.removeChild(file);
}
FSRecords.deleteRecordRecursively(id);
invalidateSubtree(file);
}
/**
* Gets the common ancestor for passed files, or null if the files do not have common ancestors.
*
* @param file1 fist file
* @param file2 second file
* @return common ancestor for the passed files. Returns <code>null</code> if the files do not
* have common ancestor
*/
@Nullable
public static VirtualFile getCommonAncestor(
@NotNull VirtualFile file1, @NotNull VirtualFile file2) {
if (!file1.getFileSystem().equals(file2.getFileSystem())) {
return null;
}
VirtualFile[] path1 = getPathComponents(file1);
VirtualFile[] path2 = getPathComponents(file2);
int lastEqualIdx = -1;
for (int i = 0; i < path1.length && i < path2.length; i++) {
if (path1[i].equals(path2[i])) {
lastEqualIdx = i;
} else {
break;
}
}
return lastEqualIdx == -1 ? null : path1[lastEqualIdx];
}
@NotNull
private static NewVirtualFileSystem getDelegate(@NotNull VirtualFile file) {
return (NewVirtualFileSystem) file.getFileSystem();
}