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This is a Lucene-based mail indexer that can be used with Gnus and nnir.el--the first non-trivial Clojure program I wrote. Ah, memories. Having really fast search over all of your mail is hard to beat. Building it ----------- The usual steps: 1. Get Leiningen from http://github.com/technomancy/leiningen and put the 'lein' script somewhere in your $PATH. 2. From mailindex's root directory, run `lein uberjar'. Lein will grab all required dependencies and produce a `mailindex.jar'. Running it ---------- You will need to define your own "config.clj" file--mine is included for reference. This contains global options (which port to listen on, where to store your Lucene indexes, etc.) as well as a list of backends that will be scanned for messages. I use Gnus's nnml backend, so that should work out of the box, but you can add other backends by adding more files. Just use nnml.clj as a guide. To run the thing, see the "mailindex" shell script--that's how I run mine. The first time you run mailindex it will run off and index all of your mail. Once it has finished this, you can search it just by telnetting to its port and typing your query. For example: $ telnet localhost 4321 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. from:triggs clojure (["misc" "6888" 18178 <headers>] ["misc" "7237" 14001 <headers>] ["misc" "7440" 14001 <headers>] ["misc" "6908" 13526 <headers>] ["misc" "69914" 9401 <headers>] ["misc" "7598" 6751 <headers>] ["work" "76803" 6751 <headers>] ["misc" "6877" 6031 <headers>] ["misc" "75410" 3502 <headers>] ["work" "74509" 3502 <headers>]) Mailindex returns a bunch of 4-tuples representing matching messages. These consist of: the group of the message, the message number, the relevance score, and the message headers. Results are sorted in descending order of relevance. Integrating with Gnus/nnir -------------------------- "contrib/mailindex.el" contains the configuration I use for integrating with Gnus. Put this into your emacs load-path, add (require 'mailindex) to your ~/.emacs, and then hitting 'G G' from Gnus's group buffer should prompt you for a query string, fire off a search and display an ephemeral group with matching results. I submitted a patch to nnir.el to have it pull the headers straight from the data returned (which is much faster than hitting the disk), but you can also grab nnir.el from the "contrib" directory if you're not using a recent version of Gnus. The query syntax ---------------- Query syntax is Lucene's standard syntax, although I do attempt to be clever and munge queries on the fly to improve the result ordering. Some examples: # Messages with a sender containing 'triggs' and the word 'clojure # anywhere from:triggs clojure # Anything sent between June 2008 and January 2009 containing the word # 'porcupine' date:[200806 TO 200901] porcupine # Boolean madness from:triggs AND (to:clojure OR to:vufind) AND subject:pickles Licence ------- Distributed under the Eclipse Public License. See the file "COPYING".