add wipe prevention via file in data root dir (#548)

* if a file named root_manifest.ignore_schema_mismatch exists in the root data dir, ignore schema mismatch

1 files changed, 18 insertions, 3 deletions

diff --git a/src/zenserver/zenserver.cpp b/src/zenserver/zenserver.cpp
index b87679b7d..8359f5088 100644
--- a/src/zenserver/zenserver.cpp
+++ b/src/zenserver/zenserver.cpp
@@ -363,9 +363,24 @@ ZenServer::InitializeState(const ZenServerOptions& ServerOptions)
 
 				if (ManifestVersion != ZEN_CFG_SCHEMA_VERSION)
 				{
-					WipeState = true;
-					WipeReason =
-						fmt::format("Manifest schema version: {}, differs from required: {}", ManifestVersion, ZEN_CFG_SCHEMA_VERSION);
+					std::filesystem::path ManifestSkipSchemaChangePath = m_DataRoot / "root_manifest.ignore_schema_mismatch";
+					if (ManifestVersion != 0 && std::filesystem::is_regular_file(ManifestSkipSchemaChangePath))
+					{
+						ZEN_INFO(
+							"Schema version {} found in '{}' does not match {}, ignoring mismatch due to existance of '{}' and updating "
+							"schema version",
+							ManifestVersion,
+							ManifestPath,
+							ZEN_CFG_SCHEMA_VERSION,
+							ManifestSkipSchemaChangePath);
+						UpdateManifest = true;
+					}
+					else
+					{
+						WipeState = true;
+						WipeReason =
+							fmt::format("Manifest schema version: {}, differs from required: {}", ManifestVersion, ZEN_CFG_SCHEMA_VERSION);
+					}
 				}
 			}
 		}