Re: Best way to add Forgejo support?

tusharhero> for the last two weeks.

Given your rate of progress, I'd urge you to find employment and earn
enough savings to afford a $200 annual Claude "Pro" subscription.  I
personally cut alcohol from my expenses so I could afford it.  Win-win
you might say.

Dick: I subscribe to one of the test groups, but when I attempt to enter it=
, it
says "Group test1 contains no messages".  Can you explain why?

Claude: Found it. The issue is in nnforgejo-request-list. The NNTP LIST
  format is <group> <high> <low> <flags>, but the backend outputs them
  swapped:

  (insert (format "test%d 0000000001 0000000010 n\n" (1+ n)))
  ;;                        ^^^low^^^  ^^^high^^^

  gnus-active-to-gnus-format (gnus-start.el:2188-2198) reads the two number=
s as max then min,
  then stores the active as (min . max):

  (numberp (setq max (read cur)))  ; reads 1
  (numberp (setq min (read cur)))  ; reads 10
  ...
  (puthash group (cons min max) hashtb)  ; stores (10 . 1)  =E2=86=90 inver=
ted!

  So every group gets active (10 . 1). Since that's an inverted range, rang=
e-uncompress
  returns nil, gnus-articles-to-read returns 0, and gnus-select-newsgroup r=
eturns nil.

  When that happens, gnus-sum.el:3844 falls through to check gnus-list-of-u=
nread-articles =E2=80=94
  which also returns nil because (cdr '(10 . 1)) =3D 1 and (car '(10 . 1)) =
=3D 10, so first > last
   =E2=86=92 empty list. Hence: "Group test1 contains no messages".

  The fix is to swap the numbers in request-list: 0000000010 0000000001.

Dick: I reversed the numbers, and the mesasge count for group "test1"
becamse 10.  Good work!  When I entered the group, the count immediately
became zero, and I got "No unread news" in the echo area

Claude: gnus-get-newsgroup-headers (gnus-sum.el:6195) parses the
  nntp-server-buffer content using nnheader-parse-head. Let's see what
  that expects:

  Looking at nnheader-parse-head (nnheader.el:311):
  (when (re-search-forward "^[23][0-9]+ " nil t)
    (setq num (read cur)
          beg (point)
          end (if (search-forward "\n.\n" nil t)
                  (goto-char (- (point) 2))
                (point))))

  It expects each article's headers to be preceded by a 220 <num> Article r=
etrieved. line and
  terminated by \n.\n. But nnforgejo-retrieve-headers just calls nnheader-i=
nsert-header with
  no such framing. nnheader-parse-head finds no ^[23][0-9]+  line, returns =
nil immediately,
  and gnus-newsgroup-headers ends up empty.

  With an empty summary buffer, gnus-sum.el:3894-3899 fires:
  (if (and (zerop (buffer-size)) (not no-display))
      (progn
        (gnus-summary-catchup-and-exit nil t)  ; =E2=86=90 marks 1-10 as re=
ad
        (gnus-message 6 "No unread news")

  That catchup-and-exit is why the group count drops to 0.

  The fix: retrieve-headers needs to wrap each article with 220 <num> Artic=
le retrieved.\n
  before and .\n after the headers nnheader-insert-header already inserts.