Re: Folder+tags

Subject: Re: Folder+tags

Date: Sun, 03 Jan 2021 22:01:35 +0200

To: inwit,


From: Tomi Ollila

On Sun, Jan 03 2021, wrote:

> On Sun Dec 27, 2020 at 10:09 PM CET, Tomi Ollila wrote:
>> On Sun, Dec 27 2020, wrote:
>> > On Sun Dec 27, 2020 at 2:12 PM CET, Tomi Ollila wrote:
>> >> On Sun, Dec 27 2020, wrote:
>> >>
>> >> There sure is notmuch-after-tag-hook (in emacs MUA), but -hooks
>> >> don't take argument(s) so how does it know what was tagged (cannot
>> >> remember if there are let-bound (dynamically bound!) variables that
>> >> could have such information).
>> > Apparently (I'm a total noob wrt elisp), the hook should know what
>> > was tagged and how it was tagged. In its documentation it reads:
>> > «'tag-changes' will contain the tags that were added or removed as a
>> > list of strings of the form "+TAG" or "-TAG". 'query' will be a
>> > string containing the search query that determines the messages that
>> > were tagged."
>> nos that you said it, query is a variable the hook can access to know
>> what was tgged. filnames it doesn't contain. with the query you can
>> find the filenames with 'notmuch search --output=files query
> Coming back to this issue, I was wondering if someone could give me some
> advice concerning the notmuch-after-tag-hook (I've tried to find answers
> in the docs but I failed). 
> What I need to know is if, as with pre and post-new, I can write such
> hooks in any language (bash would be my choice at the moment) or they
> are limited to lisp? In the case I can use bash, how would I access to
> 'tag-changes' and 'query'?

The hooks are lisp code, the variables 'tag-changes' and 'query' are
available in the scope when those hooks are called (bound dynamically).

In your hook you can run shell command (if you wanted to run bash command

to see some samples how you'd do something like that run e.g. 
git grep shell-command  in notmuch source tree and examine found content...

> Also, where should I place my hook once written? 

in .emacs.d/notmuch-config.el

> Thanks for your patience.

sure, No prob. 

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