# 
# 
# patch "ChangeLog"
#  from [ee9225dd82d90d9afab02a5bdd7ead4c0d202b7d]
#    to [ca953ca6db828c5e165a2f1a5f9b04a4697c8873]
# 
# patch "revision.cc"
#  from [6640272c7839f8489f1fe23813d7c520afc87d02]
#    to [dc9d63065b1efd2f3c53da2f6d19a685174e450d]
# 
============================================================
--- ChangeLog	ee9225dd82d90d9afab02a5bdd7ead4c0d202b7d
+++ ChangeLog	ca953ca6db828c5e165a2f1a5f9b04a4697c8873
@@ -1,5 +1,11 @@
 2006-02-26  Nathaniel Smith  <address@hidden>
 
+	* revision.cc (parse_revision): Prepare for the future by giving a
+	more user-friendly error message on unknown format_version
+	strings.
+
+2006-02-26  Nathaniel Smith  <address@hidden>
+
 	* schema_migration.cc (migrate): Provide a little more feedback
 	during migration, so it doesn't look like it's taking minutes and
 	minutes just to "calculate necessary migration steps".
============================================================
--- revision.cc	6640272c7839f8489f1fe23813d7c520afc87d02
+++ revision.cc	dc9d63065b1efd2f3c53da2f6d19a685174e450d
@@ -1526,7 +1526,11 @@
   std::string tmp;
   parser.esym(syms::format_version);
   parser.str(tmp);
-  I(tmp == "1");
+  E(tmp == "1",
+    F("encountered a revision with unknown format, version '%s'\n"
+      "I only know how to understand the version '1' format\n"
+      "a newer version of monotone is required to complete this operation")
+    % tmp);
   parser.esym(syms::new_manifest);
   parser.hex(tmp);
   rev.new_manifest = manifest_id(tmp);