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[debbugs-tracker] bug#34462: closed (27.0.50; package.el breakage when f

From: GNU bug Tracking System
Subject: [debbugs-tracker] bug#34462: closed (27.0.50; package.el breakage when features are loaded in after-init-hook)
Date: Fri, 01 Mar 2019 09:49:01 +0000

Your message dated Fri, 01 Mar 2019 11:47:50 +0200
with message-id <address@hidden>
and subject line Re: bug#34462: 27.0.50; package.el breakage when features are 
loaded in after-init-hook
has caused the debbugs.gnu.org bug report #34462,
regarding 27.0.50; package.el breakage when features are loaded in 
to be marked as done.

(If you believe you have received this mail in error, please contact

34462: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=34462
GNU Bug Tracking System
Contact address@hidden with problems
--- Begin Message --- Subject: 27.0.50; package.el breakage when features are loaded in after-init-hook Date: Wed, 13 Feb 2019 09:03:14 +1300

Given an init.el snippet like:

    (add-hook 'after-init-hook
              (lambda ()
                (require 'server)
                (unless (server-running-p)

the `load-history' var will contain an entry with a nil car (as per its
documentation), inside which the `(require . server)' load will be

However, the code in `package--list-loaded-files' unconditionally
applies `file-name-sans-extension' to the cars of `load-history',
resulting in errors whenever packages are activated (e.g. upgraded,

I believe the correct fix would be simply add a `stringp' test here:


(Using a nightly Emacs HEAD snapshot from a couple of days ago.)

In GNU Emacs 27.0.50 (build 1, x86_64-apple-darwin14.5.0, NS appkit-1671.20 
Version 10.14.3 (Build 18D109))
 of 2019-02-12 built on Tulku.local
Windowing system distributor 'Apple', version 10.3.1671
System Description:  Mac OS X 10.14.3

Recent messages:
Mark set [6 times]
Entering debugger...
Back to top level
Mark set [2 times]
Mark saved where search started
Mark set
Mark saved where search started
Mark set
Quit [2 times]
Entering debugger...

Configured using:
 'configure --with-ns '--enable-locallisppath=/Library/Application
 Support/Emacs/site-lisp' --with-modules'

Configured features:

Important settings:
  value of $LC_CTYPE: en_US.UTF-8
  value of $LANG: en_US
  locale-coding-system: utf-8

Major mode: ELisp

Minor modes in effect:
  global-magit-file-mode: t
  magit-auto-revert-mode: t
  global-git-commit-mode: t
  async-bytecomp-package-mode: t
  default-text-scale-mode: t
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  company-quickhelp-mode: t
  company-quickhelp-local-mode: t
  winner-mode: t
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  anzu-mode: t
  counsel-mode: t
  diredfl-global-mode: t
  ivy-mode: t
  flycheck-color-mode-line-mode: t
  global-flycheck-mode: t
  flycheck-mode: t
  global-company-mode: t
  company-mode: t
  elisp-slime-nav-mode: t
  aggressive-indent-mode: t
  highlight-quoted-mode: t
  display-line-numbers-mode: t
  rainbow-delimiters-mode: t
  symbol-overlay-mode: t
  bug-reference-prog-mode: t
  paredit-mode: t
  goto-address-prog-mode: t
  origami-mode: t
  savehist-mode: t
  electric-pair-mode: t
  global-auto-revert-mode: t
  mode-line-bell-mode: t
  beacon-mode: t
  show-paren-mode: t
  global-page-break-lines-mode: t
  page-break-lines-mode: t
  hes-mode: t
  guide-key-mode: t
  global-whitespace-cleanup-mode: t
  whitespace-cleanup-mode: t
  global-diff-hl-mode: t
  diff-hl-mode: t
  diff-auto-refine-mode: t
  projectile-rails-global-mode: t
  projectile-mode: t
  ipretty-mode: t
  auto-compile-on-load-mode: t
  auto-compile-on-save-mode: t
  auto-compile-mode: t
  immortal-scratch-mode: t
  nyan-mode: t
  shell-dirtrack-mode: t
  whole-line-or-region-global-mode: t
  whole-line-or-region-local-mode: t
  dimmer-mode: t
  delete-selection-mode: t
  cua-mode: t
  desktop-save-mode: t
  ns-auto-titlebar-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  global-prettify-symbols-mode: t
  prettify-symbols-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  buffer-read-only: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t
  view-mode: t

Load-path shadows:
None found.

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Memory information:
((conses 16 2422385 377720)
 (symbols 48 73154 813)
 (strings 32 372448 32970)
 (string-bytes 1 12111991)
 (vectors 16 144591)
 (vector-slots 8 2813290 579564)
 (floats 8 2029 6391)
 (intervals 56 160180 9260)
 (buffers 992 148))

--- End Message ---
--- Begin Message --- Subject: Re: bug#34462: 27.0.50; package.el breakage when features are loaded in after-init-hook Date: Fri, 01 Mar 2019 11:47:50 +0200
> From: Dmitry Alexandrov <address@hidden>
> Date: Fri, 15 Feb 2019 04:45:59 +0300
> Cc: address@hidden, Steve Purcell <address@hidden>
> Well, with no regard to how pdmp breaks ages-old traditions of symlinking 
> executables, either the docstring of ‘load-history’, which says that “As an 
> exception, one of the alist elements may have FILE-NAME nil”, or code that 
> assumes the opposite should be fixed, should not them?

Thanks, I think I fixed all the places where the code assumed the CAR
of a non-nil element of load-history must be a string.  The fix is on
the master branch.

--- End Message ---

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