From: Tuukka Lehtonen <tuukka.lehtonen@semantum.fi>
Date: Fri, 7 Oct 2016 14:15:11 +0000 (+0300)
Subject: Fixed acorn db main.state loading rollback reporting.
X-Git-Tag: v1.25.0~74
X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=commitdiff_plain;h=e6b94ace582761493086edb67f3dba5548523801

Fixed acorn db main.state loading rollback reporting.

The previous implementation caused main.state loading to always report
the database as requiring rollback which caused the system to always
delete all indexes on program startup.

refs #6709

Change-Id: Id3d90436c1960faa3ac5ebbc82e817b673934f53
---

diff --git a/bundles/org.simantics.acorn/src/org/simantics/acorn/MainState.java b/bundles/org.simantics.acorn/src/org/simantics/acorn/MainState.java
index ec8451cca..7d1580421 100644
--- a/bundles/org.simantics.acorn/src/org/simantics/acorn/MainState.java
+++ b/bundles/org.simantics.acorn/src/org/simantics/acorn/MainState.java
@@ -157,15 +157,16 @@ public class MainState implements Serializable {
             
             for (Path p : reverseSortedPaths) {
                 if (!p.equals(latest)) {
-                    // this indicates that there is a possibility that index and vg's are out of sync
-                    // if we are able to find folders with higher number than the current head.state
-                    callback.accept(null);
+                    if (Files.exists(p.resolve(HeadState.HEAD_STATE))) {
+                        // this indicates that there is a possibility that index and vg's are out of sync
+                        // if we are able to find folders with higher number than the current head.state
+                        callback.accept(null);
+                    }
                     uncheckedDeleteAll(p);
                 } else {
                     break;
                 }
             }
-            
         }
     }