Skynet/misc_nixos-mailserver
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fts xapian: adapt to newer versions

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fts xapian does not publish configuration changes in a changelog. As a
result, some options that nixos mailserver was setting for it have been
ignored for several years. New options (process_limit) are now
recommended. This adapts the module to these changes.

The default value of partial= is 2, but fts_xapian 1.8.3 now requires it
to be at least 3, and fails loudly in case it is 2. As a result, this
change is required to support fts_xapian 1.8.3 and later.
This commit is contained in:
Guillaume Girol 2025-01-18 12:00:00 +00:00
parent dc0569066e
commit ade37b2765
4 changed files with 16 additions and 23 deletions
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5
docs/fts.rst
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@ -20,8 +20,6 @@ To enable indexing for full text search here is an example configuration.
enable = true;
# index new email as they arrive
autoIndex = true;
# this only applies to plain text attachments, binary attachments are never indexed
indexAttachments = true;
enforced = "body";
};
};
@ -61,8 +59,7 @@ Mitigating resources requirements
You can:
* disable indexation of attachements ``mailserver.fullTextSearch.indexAttachments = false``
* reduce the size of ngrams to be indexed ``mailserver.fullTextSearch.minSize`` and ``maxSize``
* increase the minimum search term size ``mailserver.fullTextSearch.minSize``
* disable automatic indexation for some folders with
``mailserver.fullTextSearch.autoIndexExclude``. Folders can be specified by
name (``"Trash"``), by special use (``"\\Junk"``) or with a wildcard.