On minor version change, reparse from a given block if required

counterparty-lib/counterpartylib/lib/check.py

@@ -364,7 +364,16 @@ def database_version(db):
         )
     elif version_minor != config.VERSION_MINOR:
         # Reparse transactions from the vesion block if minor version has changed.
+        message = f'Client minor version number mismatch ({version_minor} ≠ {config.VERSION_MINOR}).'
+        if config.NEED_REPARSE_IF_MINOR_IS_LESS_THAN is not None:
+            min_version_minor, min_version_block_index = config.NEED_REPARSE_IF_MINOR_IS_LESS_THAN
+            if version_minor < min_version_minor:
+                raise DatabaseVersionError(
+                    message=message,
+                    required_action='reparse',
+                    from_block_index=min_version_block_index
+                )
         raise DatabaseVersionError(
-            message=f'Client minor version number mismatch ({version_minor} ≠ {config.VERSION_MINOR}).',
-            required_action='reparse',
-            from_block_index=config.BLOCK_FIRST)
+            message=message,
+            required_action=None
+        )

counterparty-lib/counterpartylib/lib/config.py

@@ -17,6 +17,12 @@
 
 ADDRINDEXRS_VERSION = "0.4.3"
 
+# When updating to a new verion, we are making a rollback if major version changes.
+# If minor version changes and if needed, we are making a reparse from a given block.
+# Fo example:
+# NEED_REPARSE_IF_MINOR_IS_LESS_THAN = (1, 800000)
+# means that we need to reparse from block 800000 if database minor version is less than 1
+NEED_REPARSE_IF_MINOR_IS_LESS_THAN = None
 
 # Counterparty protocol
 TXTYPE_FORMAT = '>I'