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bug#63236: 29.0.90; loaddefs-generate not 100% backwards compatible
From: |
Robert Pluim |
Subject: |
bug#63236: 29.0.90; loaddefs-generate not 100% backwards compatible |
Date: |
Tue, 02 May 2023 19:06:14 +0200 |
I attempted to upgrade my packages today using `list-packages', which
errored out when regenerating the autoloads for vlf-write.el:
Debugger entered--Lisp error: (search-failed "\n\f\n;;;")
search-forward("\n\f\n;;;")
loaddefs-generate("/home/rpluim/.emacs.d/elpa/vlf-20191126.2250"
"/home/rpluim/.emacs.d/elpa/vlf-20191126.2250/vlf-a..." nil "(add-to-list
'load-path (or (and load-file-name (f...")
package-generate-autoloads(vlf "/home/rpluim/.emacs.d/elpa/vlf-20191126.2250")
The vlf-autoloads.el file ends like this:
--begin--
;;; Generated autoloads from vlf-tune.el
(register-definition-prefixes "vlf-tune" '("vlf-"))
;;; Generated autoloads from vlf-write.el
(register-definition-prefixes "vlf-write" '("vlf-"))
;; Local Variables:
;; version-control: never
;; no-byte-compile: t
;; no-update-autoloads: t
;; coding: utf-8
;; End:
;;; vlf-autoloads.el ends here
--end--
which doesnʼt contain "\n\f\n;;;" after the vlf-write entry.
The code in question from loaddefs-gen.el:629 is
(when (file-exists-p loaddefs-file)
;; If we're updating an old loaddefs file, then see if
;; there's a section here for this file already.
(goto-char (point-min))
(if (not (search-forward head nil t))
;; It's a new file; put the data at the end.
(progn
(goto-char (point-max))
(search-backward "\f\n" nil t))
;; Delete the old version of the section.
(delete-region (match-beginning 0)
(and (search-forward "\n\f\n;;;")
(match-beginning 0)))
(forward-line -2)))
So itʼs assuming that the entry ends with ";;;"
This is a really old package, and itʼs probably somewhat obsolete, but
perhaps we should support such an old format without erroring anyway.
In GNU Emacs 29.0.90 (build 8, x86_64-pc-linux-gnu, GTK+ Version
3.24.24, cairo version 1.16.0) of 2023-05-02 built on rltb
Repository revision: 16ecbf5af6d4fcb500941ede4d029cffd8eac757
Repository branch: emacs-29
Windowing system distributor 'The X.Org Foundation', version 11.0.12009000
System Description: Debian GNU/Linux 11 (bullseye)
- bug#63236: 29.0.90; loaddefs-generate not 100% backwards compatible,
Robert Pluim <=
- bug#63236: 29.0.90; loaddefs-generate not 100% backwards compatible, Robert Pluim, 2023/05/03
- bug#63236: 29.0.90; loaddefs-generate not 100% backwards compatible, Andreas Schwab, 2023/05/03
- bug#63236: 29.0.90; loaddefs-generate not 100% backwards compatible, Eli Zaretskii, 2023/05/03
- bug#63236: 29.0.90; loaddefs-generate not 100% backwards compatible, Robert Pluim, 2023/05/03
- bug#63236: 29.0.90; loaddefs-generate not 100% backwards compatible, Robert Pluim, 2023/05/03
- bug#63236: 29.0.90; loaddefs-generate not 100% backwards compatible, Eli Zaretskii, 2023/05/03
- bug#63236: 29.0.90; loaddefs-generate not 100% backwards compatible, Robert Pluim, 2023/05/04
- bug#63236: 29.0.90; loaddefs-generate not 100% backwards compatible, Eli Zaretskii, 2023/05/04
- bug#63236: 29.0.90; loaddefs-generate not 100% backwards compatible, Robert Pluim, 2023/05/04