Gnus: Gcc and imap folders

Gnus: Gcc and imap folders

[Arash Esbati]

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Hi all,

I can't get Gcc and threading work reliably in imap folders.  Here an
example: Incoming mail is shown without parent.


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When I hit `A r', the parent is shown and I get threading:


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One thing occured to me is that pretty printing of char numbers is
broken (n/a) -- it looks fine for the same message in my sent-mail
archive (I Gcc all mails into nnml+archive:sent-mail, see below).  I
regenerated nnml+archive and .overview file seems also ok.

Any hint how I can get my hands on this issue?

Some relevant parts of my .gnus are:

;; Archiving
(setq gnus-message-archive-method
      '(nnml "archive"
	     (nnml-directory   "~/Mail/archive")
	     (nnml-active-file "~/Mail/archive/active")
	     (nnml-get-new-mail nil)
	     (nnml-inhibit-expiry t)))

(setq gnus-message-archive-group
      '((if (message-news-p)
	    "sent-news"
	  "sent-mail")))

;; Finding the Parent
(setq gnus-refer-article-method
      '(current
	(nnml "archive")))

;; Group parameters
(setq gnus-parameters
      '(("^nnimap\\+gmail:.*"
	 (gnus-show-threads t)
	 (gnus-thread-sort-functions
	  '(gnus-thread-sort-by-number
	    gnus-thread-sort-by-subject
	    (not gnus-thread-sort-by-date)))
	 (gnus-use-scoring nil)
	 (display . all)
	 (gnus-summary-line-format
	  "%U%R%z%B%(%4k: %-20,20f%) %d %3{%s%}\n"))))

TIA, Arash

Re: Gnus: Gcc and imap folders

[Tassilo Horn]

Arash Esbati <arash.esbati+ml@gmail.com> writes:

Hi Arash,

> I can't get Gcc and threading work reliably in imap folders.  Here an
> example: Incoming mail is shown without parent.
>
> [img]
>
> When I hit `A r', the parent is shown and I get threading:

I can't see your screenshot (I'm ssh-ed into a server) but can it be
that you don't see the parents because you've already read them before?
By default, Gnus won't show old mail.  That's controlled by this
variable.

,----[ C-h v gnus-fetch-old-headers RET ]
| gnus-fetch-old-headers is a variable defined in ‘gnus-sum.el’.
| Its value is ‘some’
| Original value was nil
| 
| Documentation:
| Non-nil means that Gnus will try to build threads by grabbing old headers.
| If an unread article in the group refers to an older, already
| read (or just marked as read) article, the old article will not
| normally be displayed in the Summary buffer.  If this variable is
| t, Gnus will attempt to grab the headers to the old articles, and
| thereby build complete threads.  If it has the value ‘some’, all
| old headers will be fetched but only enough headers to connect
| otherwise loose threads will be displayed.  This variable can
| also be a number.  In that case, no more than that number of old
| headers will be fetched.  If it has the value ‘invisible’, all
| old headers will be fetched, but none will be displayed.
| 
| The server has to support NOV for any of this to work.
| 
| This feature can seriously impact performance it ignores all
| locally cached header entries.  Setting it to t for groups for a
| server that doesn’t expire articles (such as news.gmane.org),
| leads to very slow summary generation.
| 
| You can customize this variable.
`----

> One thing occured to me is that pretty printing of char numbers is
> broken (n/a) -- it looks fine for the same message in my sent-mail
> archive (I Gcc all mails into nnml+archive:sent-mail, see below).

What are "char numbers"?

Bye,
Tassilo

Re: Gnus: Gcc and imap folders

[Arash Esbati]

Tassilo Horn <thorn@fastmail.fm> writes:

Hi Tassilo,

> Arash Esbati <arash.esbati+ml@gmail.com> writes:
>
>> I can't get Gcc and threading work reliably in imap folders.  Here an
>> example: Incoming mail is shown without parent.
>>
>> [img]
>>
>> When I hit `A r', the parent is shown and I get threading:
>
> I can't see your screenshot (I'm ssh-ed into a server) but can it be
> that you don't see the parents because you've already read them before?

Thanks for your response.  Yes, it is the case, I have "already seen"
parents, but I have `(display . all)' in my `gnus-parameters', so Gnus
shows the old messages.

> By default, Gnus won't show old mail.  That's controlled by this
> variable.
>
> ,----[ C-h v gnus-fetch-old-headers RET ]

I tried your suggestion, but no avail.  With or without your suggestion,
I have threads in the same group where Gcc works and looks like this:

O  +  80: → emacs-devel@gnu.or 19-Aug Emacs binaries for Windows
OA ├─▶   58: Name 1               19-Aug 
O  │ └─▶  139: → Name 1             19-Aug 
OA └─▶   85: Name 2               19-Aug 
O   └─▶   63: → Name 2             19-Aug

In other, newer threads, my messages (→ Name 1) don't show up, only when
I hit `A r'.

I get something by setting `(gnus-build-sparse-threads 'more)' in
`gnus-parameters', but it has other side effects:

O  +  24: Name 1               09-Sep Re: Real key-val query for \includegraphics
Q  └─▶    0:                      10-Sep 
OA  └─▶   17: Name 1               10-Sep 

My message show up, but looks totally broken (0:     ).

>> One thing occured to me is that pretty printing of char numbers is
>> broken (n/a) -- it looks fine for the same message in my sent-mail
>> archive (I Gcc all mails into nnml+archive:sent-mail, see below).
>
> What are "char numbers"?

I was referring to Gnus manual, section 3.1.1 Summary Buffer Lines:

‘k’
    Pretty-printed version of the number of characters in the article;
    for example, ‘1.2k’ or ‘0.4M’.

In my `gnus-parameters', I had this for this group

(gnus-summary-line-format "%U%R%z%B%(%4k: %-20,20f%) %d %3{%s%}\n")

But it doesn't work and our thread looks like this (after `A r'):

✓  + n/a: → help-gnu-emacs@gnu 02-Sep Gnus: Gcc and imap folders
✓  └─▶ 5.0k: Tassilo Horn         12-Sep

I'm running out of ideas how to get my hands on this.

Best, Arash

Re: Gnus: Gcc and imap folders

[Tassilo Horn]

Arash Esbati <arash.esbati+ml@gmail.com> writes:

Hi Arash,

>>> I can't get Gcc and threading work reliably in imap folders.  Here an
>>> example: Incoming mail is shown without parent.
>>>
>>> [img]
>>>
>>> When I hit `A r', the parent is shown and I get threading:
>>
>> I can't see your screenshot (I'm ssh-ed into a server) but can it be
>> that you don't see the parents because you've already read them
>> before?
>
> Thanks for your response.  Yes, it is the case, I have "already seen"
> parents, but I have `(display . all)' in my `gnus-parameters', so Gnus
> shows the old messages.
>
>> By default, Gnus won't show old mail.  That's controlled by this
>> variable.
>>
>> ,----[ C-h v gnus-fetch-old-headers RET ]
>
> I tried your suggestion, but no avail.  With or without your suggestion,
> I have threads in the same group where Gcc works and looks like this:
>
> O  +  80: → emacs-devel@gnu.or 19-Aug Emacs binaries for Windows
> OA ├─▶   58: Name 1               19-Aug 
> O  │ └─▶  139: → Name 1             19-Aug 
> OA └─▶   85: Name 2               19-Aug 
> O   └─▶   63: → Name 2             19-Aug
>
> In other, newer threads, my messages (→ Name 1) don't show up, only when
> I hit `A r'.
>
> I get something by setting `(gnus-build-sparse-threads 'more)' in
> `gnus-parameters', but it has other side effects:
>
> O  +  24: Name 1               09-Sep Re: Real key-val query for \includegraphics
> Q  └─▶    0:                      10-Sep 
> OA  └─▶   17: Name 1               10-Sep 
>
> My message show up, but looks totally broken (0:     ).

Sorry, I have no clue.  I use `gnus-fetch-old-headers' set to 'some and
no special parameters like `(display . all)', and when there are two new
messages in the same thread, then everything up to their common parent
is shown (as advertised by the value 'some).  So maybe you want to try
that just to see if the `display' parameter has something to do with
that.

>>> One thing occured to me is that pretty printing of char numbers is
>>> broken (n/a) -- it looks fine for the same message in my sent-mail
>>> archive (I Gcc all mails into nnml+archive:sent-mail, see below).
>>
>> What are "char numbers"?
>
> I was referring to Gnus manual, section 3.1.1 Summary Buffer Lines:
>
> ‘k’
>     Pretty-printed version of the number of characters in the article;
>     for example, ‘1.2k’ or ‘0.4M’.
>
> In my `gnus-parameters', I had this for this group
>
> (gnus-summary-line-format "%U%R%z%B%(%4k: %-20,20f%) %d %3{%s%}\n")
>
> But it doesn't work and our thread looks like this (after `A r'):
>
> ✓  + n/a: → help-gnu-emacs@gnu 02-Sep Gnus: Gcc and imap folders
> ✓  └─▶ 5.0k: Tassilo Horn         12-Sep
>
> I'm running out of ideas how to get my hands on this.

Ah, ok, now I understand.  So I've put %k in my
`gnus-summary-line-format' as well, and my numbers are all ok even after
I pulled in more articles via `A r'.  So what does that tell us?  I
don't know. :-(

Bye,
Tassilo

Re: Gnus: Gcc and imap folders

[Arash Esbati]

Tassilo Horn <thorn@fastmail.fm> writes:

Hi Tassilo,

> Sorry, I have no clue.  I use `gnus-fetch-old-headers' set to 'some and
> no special parameters like `(display . all)', and when there are two new
> messages in the same thread, then everything up to their common parent
> is shown (as advertised by the value 'some).  So maybe you want to try
> that just to see if the `display' parameter has something to do with
> that.

I tried it, did't work either :-(

> Ah, ok, now I understand.  So I've put %k in my
> `gnus-summary-line-format' as well, and my numbers are all ok even after
> I pulled in more articles via `A r'.  So what does that tell us?  I
> don't know. :-(

Thanks for checking.  I've set `nnimap-record-commands' to t and start
reading `*imap log*', have to dig into it deeper.  Otherwise, I will try
Gnus' registry, maybe that helps.

Best, Arash