From e501453dd439a94bc2f09a644fa8be39e4634d0a Mon Sep 17 00:00:00 2001 From: Rich Lane Date: Sun, 16 Aug 2009 16:28:56 -0400 Subject: [PATCH] xapian index format versioning --- lib/sup/xapian_index.rb | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/lib/sup/xapian_index.rb b/lib/sup/xapian_index.rb index 1753f96..87a5441 100644 --- a/lib/sup/xapian_index.rb +++ b/lib/sup/xapian_index.rb @@ -8,6 +8,7 @@ module Redwood # for searching due to precomputing thread membership. class XapianIndex < BaseIndex STEM_LANGUAGE = "english" + INDEX_VERSION = '1' ## dates are converted to integers for xapian, and are used for document ids, ## so we must ensure they're reasonably valid. this typically only affect @@ -22,7 +23,18 @@ class XapianIndex < BaseIndex end def load_index - @xapian = Xapian::WritableDatabase.new(File.join(@dir, "xapian"), Xapian::DB_CREATE_OR_OPEN) + path = File.join(@dir, 'xapian') + if File.exists? path + @xapian = Xapian::WritableDatabase.new(path, Xapian::DB_OPEN) + db_version = @xapian.get_metadata 'version' + db_version = '0' if db_version.empty? + if db_version != INDEX_VERSION + fail "This Sup version expects a v#{INDEX_VERSION} index, but you have an existing v#{db_version} index. Please downgrade to your previous version and dump your labels before upgrading to this version (then run sup-sync --restore)." + end + else + @xapian = Xapian::WritableDatabase.new(path, Xapian::DB_CREATE) + @xapian.set_metadata 'version', INDEX_VERSION + end @term_generator = Xapian::TermGenerator.new() @term_generator.stemmer = Xapian::Stem.new(STEM_LANGUAGE) @enquire = Xapian::Enquire.new @xapian -- 2.43.0