Ticket #709: 709-get_revision_info.diff

xapian-core/api/omdatabase.cc

@@ -750 +750 @@
     RETURN(uuid);
 }
 
+std::string
+Database::get_revision_info() const
+{
+    LOGCALL(API, std::string, "Database::get_revision_info", NO_ARGS);
+    string revision_info;
+    for (size_t i = 0; i < internal.size(); ++i) {
+        string sub_revision_info = internal[i]->get_revision_info();
+        // If any of the sub-databases have no revision_info, we can't make a revision_info for
+        // the combined database.
+        if (sub_revision_info.empty())
+            RETURN(sub_revision_info);
+        if (!revision_info.empty()) revision_info += ':';
+        revision_info += sub_revision_info;
+    }
+    RETURN(revision_info);
+}
+
 ///////////////////////////////////////////////////////////////////////////
 
 WritableDatabase::WritableDatabase() : Database()

xapian-core/include/xapian/database.h

@@ -481 +481 @@
          */
         std::string get_uuid() const;
 
+        /** Get the revision info for the database.
+         *
+         *  The revision info is a string representation describing the current
+         *  revision of the database.
+         */
+        std::string get_revision_info() const;
+
         /** Check the integrity of a database or database table.
          *
          *  @param path Path to database or table