Re: searching for a message by path

[David Bremner <david@tethera.net>]

David Bremner <david@tethera.net> writes:

> Frederick Eaton <frederik@ofb.net> writes:
>
>> If Notmuch is meant to function as an abstraction layer over message
>> files stored on the file system, then why doesn't it provide a
>> standard way to go from file paths to Notmuch messages?
>
> Although I think notmuch as it exists is far from "an abstraction
> layer", the specific feature request seems reasonable. It would need
> someone who wants it to get familiar with the low level implementation
> details of notmuch. In particular it would require writing a database
> upgrade and having a new version of the database schema.

I was looking at the code, and I realized it is not actually as hard as
that.  Essentially the code of notmuch_database_find_message_by_filename
needs to be wrapped in a PostingSource following the model of
RegexpPostingSource (regexp-fields.cc). The fact that no database format
changes (or even reindexing) are needed, makes this a much lower risk
project.

d