GNU bug report logs - #77083
31.0.50; submit-emacs-patch doesn't work in compressed lisp files

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From: Elijah Gabe Pérez <eg642616 <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Philip Kaludercic <philipk <at> posteo.net>, 77083 <at> debbugs.gnu.org
Subject: bug#77083: 31.0.50; submit-emacs-patch doesn't work in compressed lisp files
Date: Tue, 18 Mar 2025 12:50:56 -0600

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Eli Zaretskii <eliz <at> gnu.org> writes:

>> From: Elijah Gabe Pérez <eg642616 <at> gmail.com>
>> Date: Mon, 17 Mar 2025 14:37:04 -0600

>> When Emacs was compiled with compress-install, using submit-emacs-patch gives an error because it
>> search for maintainer address in file.el instead file.el.gz. 

> Thanks, but this lacks details, IMO.  AFAIU, submit-emacs-patch gleans
> source file names from the patch file you are about to submit, and it
> expands each file name in the patch against source-directory, before
> looking them up for their maintainers.  In the source tree (if you
> still have it around) the files are not compressed.  OTOH, if your
> patch names files by their absolute file name (in which case
> source-directory is not used), and the files are compressed in the
> installation tree, then how did you produce the patch from compressed
> files in the first place in a way that names the files without the .gz
> extensions?

My emacs-git directory (where i use to contribute) doesn't have the lisp
files compressed, it seems that submit-emacs-patch search in
source-directory (which i have it pointing to /usr/share/emacs/31.0.50/)
for lisp.el, however my installed emacs was built with compress-install
which i have lisp.el.gz instead.

> IOW, please show an example of a patch that could be used to reproduce
> this issue and the recipe to reproduce,

Sure, here is:


Steps to reproduce:
1. emacs -Q
2. eval: (setq source-directory "/usr/share/emacs/31.0.50/")
3. M-x submit-emacs-patch RET /path/to/test.patch RET RET

and should display mail/message buffer with this

#+begin_example
  To: bug-gnu-emacs <at> gnu.org
  Subject: 
  From:
  X-Debbugs-Cc: --text follows this line--
#+end_example

and give an error:

#+begin_example
  Opening input file: The file or directory does not exist, /usr/share/emacs/31.0.50/lisp/simple.el
#+end_example

> and please tell whether you do or don't have the Emacs source tree
> pointed to by source-directory.

I have source-directory pointing to /usr/share/emacs/31.0.50/, changing
it to my emacs-git directory path fix this.

However I haven't found any documentation about this variable and
changing its value, so I see it very dangerous do it.

> Or maybe I'm missing something obvious, in which case please point out
> what I missed.

You didn't miss anything, I think I've explained enough.

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[test.patch (text/x-patch, attachment)]

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