notmuch reindex wipes existing tags

Franz Fellner alpine.art.de at gmail.com
Mon May 4 05:39:53 PDT 2020 

On Mon May  4 07:30:38 2020, David Bremner <david at tethera.net> wrote:
> Franz Fellner <alpine.art.de at gmail.com> writes:
> 
> > Ran notmuch reindex.
> > And now all custom tags were wiped, especially attachments-extracted.
> > I now can't see if the pdf of a certain message was already saved.
> > This is 3 years of 5 newspapers a weak. I must delete the files
> > and re-extract them.
> >
> > I did not expect that, especially after reading the man page
> > which doesn't warn about resetting tags.
> >
> > So here my question:
> > Is this a bug or a feature?
> 
> It sounds like a bug. But it's a bug that the test suite specifically
> tests for ("reindex preserves tags" in T700-reindex.sh) so I'm not sure
> what is going on. To eliminate the obvious, does the test suite pass for
> you?
> 
> d
> 
> 
-- 

T700 passes.

Wanted to know if I was wrong:

[15:19] $ notmuch search tag:adz date:1M
thread:00000000000099a2   Wed. 15:15 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-30 als PDF (adz attachment attachments-extracted inbox news newspaper)
thread:000000000000995b   Tue. 15:15 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-29 als PDF (adz attachment attachments-extracted inbox news newspaper unread)
thread:000000000000993c     April 27 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-28 als PDF (adz attachment attachments-extracted inbox news newspaper)
thread:00000000000098e2     April 24 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-25 als PDF (adz attachment attachments-extracted inbox news newspaper)
thread:00000000000098bd     April 23 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-24 als PDF (adz attachment attachments-extracted inbox news newspaper)
thread:0000000000009882     April 22 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-23 als PDF (adz attachment attachments-extracted inbox news newspaper)
thread:0000000000009858     April 21 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-22 als PDF (adz attachment attachments-extracted inbox news newspaper)
thread:00000000000097ac     April 15 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-16 als PDF (adz attachment attachments-extracted inbox news newspaper)
thread:0000000000009790     April 14 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-15 als PDF (adz attachment attachments-extracted inbox news newspaper)
thread:0000000000009762     April 13 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-14 als PDF (adz attachment attachments-extracted inbox news newspaper)
thread:0000000000009730     April 10 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-11 als PDF (adz attachment attachments-extracted inbox news newspaper)
thread:0000000000009710     April 09 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-10 als PDF (adz attachment attachments-extracted inbox news newspaper)
thread:00000000000096e9     April 08 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-09 als PDF (adz attachment attachments-extracted inbox news newspaper)
thread:00000000000096db     April 07 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-08 als PDF (adz attachment attachments-extracted inbox news newspaper)
thread:00000000000096b9     April 06 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-07 als PDF (adz attachment attachments-extracted inbox news newspaper)
thread:000000000000966e     April 03 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-04 als PDF (adz attachment attachments-extracted inbox news newspaper)
thread:0000000000009652     April 02 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-03 als PDF (adz attachment attachments-extracted inbox news newspaper)
thread:0000000000009636     April 01 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-02 als PDF (adz attachment attachments-extracted inbox news newspaper)
[15:19] $ notmuch reindex tag:adz date:1M
[15:19] $ notmuch search tag:adz date:1M
thread:00000000000099a2   Wed. 15:15 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-30 als PDF (adz attachment inbox news newspaper)
thread:000000000000995b   Tue. 15:15 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-29 als PDF (adz attachment inbox news newspaper unread)
thread:000000000000993c     April 27 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-28 als PDF (adz attachment inbox news newspaper)
thread:00000000000098e2     April 24 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-25 als PDF (adz attachment inbox news newspaper)
thread:00000000000098bd     April 23 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-24 als PDF (adz attachment inbox news newspaper)
thread:0000000000009882     April 22 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-23 als PDF (adz attachment inbox news newspaper)
thread:0000000000009858     April 21 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-22 als PDF (adz attachment inbox news newspaper)
thread:00000000000097ac     April 15 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-16 als PDF (adz attachment inbox news newspaper)
thread:0000000000009790     April 14 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-15 als PDF (adz attachment inbox news newspaper)
thread:0000000000009762     April 13 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-14 als PDF (adz attachment inbox news newspaper)
thread:0000000000009730     April 10 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-11 als PDF (adz attachment inbox news newspaper)
thread:0000000000009710     April 09 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-10 als PDF (adz attachment inbox news newspaper)
thread:00000000000096e9     April 08 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-09 als PDF (adz attachment inbox news newspaper)
thread:00000000000096db     April 07 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-08 als PDF (adz attachment inbox news newspaper)
thread:00000000000096b9     April 06 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-07 als PDF (adz attachment inbox news newspaper)
thread:000000000000966e     April 03 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-04 als PDF (adz attachment inbox news newspaper)
thread:0000000000009652     April 02 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-03 als PDF (adz attachment inbox news newspaper)
thread:0000000000009636     April 01 [1/1] ADZ PDF Versand; Ihre ADZ vom 2020-04-02 als PDF (adz attachment inbox news newspaper)

So either I hit a case T700 doesn't cover.

Played a little bit:

===================
diff --git a/test/T700-reindex.sh b/test/T700-reindex.sh
index 9e795896..4e76ad3e 100755
--- a/test/T700-reindex.sh
+++ b/test/T700-reindex.sh
@@ -5,6 +5,7 @@ test_description='reindexing messages'
 add_email_corpus
 
 notmuch tag +usertag1 '*'
+notmuch tag +attachments-extracted '*'
 
 notmuch search '*' | notmuch_search_sanitize > initial-threads
 notmuch search --output=messages '*' > initial-message-ids
===================

And it fails. The tag "attachments-extracted" got removed.
Got curious, it seems as soon as the additional tag starts with "attachment"
"notmuch reindex" removes it.
With "extracted-attachments" everything is fine.
Thought it might clash with preserved tags.
But "unreadable" and "inboxable" works just fine.
So it has to do with special handling of "attachment".

Regards
Franz

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