[Mailman-Users] Indexing mail right after delivery

Cedric Jeanneret cedric.jeanneret at camptocamp.com
Fri Feb 26 13:20:29 CET 2010

On Thu, 25 Feb 2010 17:08:06 -0800
Mark Sapiro <mark at msapiro.net> wrote:

> Cedric Jeanneret wrote:
> >
> >I'm trying to create a xapian[1] indexer for our mailing list. As mailman is written in Python and there are python bindings for xapian, I guess I can maybe create a plugin for that.
> >My first question is : is there already such a thing ? I searched on the net, but nothing appeared
> >My second one : can we create a plugin for mailman, if so, where should I go to have some doc ? seems there's nothing in the wiki (http://wiki.list.org/dosearchsite.action?searchQuery.queryString=plugin&searchQuery.spaceKey=conf_all)
> >
> >Just to explain why I'd like to do that: we already have a xapian search engine in here, indexing a fileserver, request tracker queues and moinmoin wikis... so we'd like to aggregate all our stuff in one app for searching.
> This will be quite doable with Mailman 3 which is still in development.
> There are problems trying to do this in Mailman 2.1.x. There is a
> plugin capability of sorts in the form of custom handlers that can be
> added to the incoming message processing pipeline. See the FAQ at
> <http://wiki.list.org/x/l4A9>. However, archiving is asynchronous with
> incoming message processing, so it is not possible for a custom
> handler to know the URL that will ultimately retrieve the message from
> the archive.
> A different approach which might be workable is to use the
> set
> PUBLIC_EXTERNAL_ARCHIVER = '/path/to/script.py'
> PRIVATE_EXTERNAL_ARCHIVER = '/path/to/script.py'
> in mm_cfg.py, then that script will be invoked do do the archiving. The
> script in turn could invoke the standard pipermail archiving process
> and then invoke xapian to index the archived message.

Hello again,

Just one question :
what do mlist, msg, msgdata stand for ? As I read I've to create my module and define a "process(mlist, msg, msgdata) inside it, I'd like to know what are those objects. I discovered that mlist stands for a Mailman.MailList.MailList('list-name'), but for the others, it's a bit hard to find...

Thanks in advance.


Cédric Jeanneret                 |  System Administrator
021 619 10 32                    |  Camptocamp SA
cedric.jeanneret at camptocamp.com  |  PSE-A / EPFL
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