[Mercurial] Fixed NPE (EA-211618): find hg root manually if project is null.

diff --git a/plugins/hg4idea/src/org/zmlx/hg4idea/HgUtil.java b/plugins/hg4idea/src/org/zmlx/hg4idea/HgUtil.java
index 669a03062a5d5f27fc245a4bfa0843e5dc95eb75..7cd0fe8c7402777da99458810aeeebe0411be383 100644 (file)
--- a/plugins/hg4idea/src/org/zmlx/hg4idea/HgUtil.java
+++ b/plugins/hg4idea/src/org/zmlx/hg4idea/HgUtil.java
@@ -201,6 +201,9 @@ public abstract class HgUtil {
    */
   @Nullable
   public static VirtualFile getHgRootOrNull(Project project, FilePath filePath) {
+    if (project == null) {
+      return getNearestHgRoot(VcsUtil.getVirtualFile(filePath.getPath()));
+    }
     return getNearestHgRoot(VcsUtil.getVcsRootFor(project, filePath));
   }