Assert we are don't perform copy into itself

2013-03-06 17:29:23 +04:00
parent 3345ae8c96
commit ecff401289
1 changed files with 5 additions and 1 deletions
@@ -162,11 +162,15 @@ public class KotlinRuntimeLibraryUtil {
                    jarNotFoundHandler.run();
                    return;
                }
+
                VirtualFile runtimeJar = getLocalKotlinRuntimeJar(project);
                assert runtimeJar != null;

                try {
-                    FileUtil.copy(runtimePath, new File(runtimeJar.getPath()));
+                    File libraryJarPath = new File(runtimeJar.getPath());
+                    assert !FileUtil.filesEqual(runtimePath, libraryJarPath) : "Shouldn't be called for updating same file";
+
+                    FileUtil.copy(runtimePath, libraryJarPath);
                }
                catch (IOException e) {
                    throw new AssertionError(e);