GNU bug report logs - #63337
[PATCH] package-vc--build-documentation: Fix relative @include statements

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From: Philip Kaludercic <philipk <at> posteo.net>
To: Joseph Turner <joseph <at> breatheoutbreathe.in>
Cc: 63337 <at> debbugs.gnu.org
Subject: bug#63337: [PATCH] package-vc--build-documentation: Fix relative @include statements
Date: Sat, 13 May 2023 17:14:13 +0000

Joseph Turner <joseph <at> breatheoutbreathe.in> writes:

> Philip Kaludercic <philipk <at> posteo.net> writes:
>
>> Joseph Turner <joseph <at> breatheoutbreathe.in> writes:
>>
>>> Philip Kaludercic <philipk <at> posteo.net> writes:
>>>
>>>> Joseph Turner <joseph <at> breatheoutbreathe.in> writes:
>>>>
>>>>> Hello!
>>>>>
>>>>> Because package-vc--build-documentation exports the texinfo manual to a
>>>>> temp file inside /tmp/ , any @include statements with relative paths
>>>>> break the makeinfo call.
>>>>>
>>>>> I noticed this issue when attempting to use package-vc to install
>>>>> org-transclusion, whose manual contains the line
>>>>>
>>>>> #+texinfo: @include fdl.texi
>>>>>
>>>>> See: https://raw.githubusercontent.com/nobiot/org-transclusion/main/docs/org-transclusion-manual.org
>>>>>
>>>>> The attached patch solves this problem by passing the -I flag to
>>>>> makeinfo. From makeinfo --help:
>>>>>
>>>>> -I DIR                        append DIR to the @include search path.
>
>>>> According to the docs, makeinfo has -I to append the search path, and -P
>>>> to prepend.  I don't know how well either of the two are supported, but
>>>> assuming they are, shouldn't -P be preferred?  Or wouldn't it have any
>>>> effect?
>>>
>>> I am not sure what difference it would make. I don't know if the default
>>> @include search path includes anything besides the working directory.
>>>
>>> In the attached diff, I have changed -I to -P.
>>
>> I can confirm that this patch does the right thing, and I think we
>> should apply it.
>
> I think Eli suggested we prepend (-I) instead of append (-P), as in the
> very first patch I sent, also attached here.

I did not understand the argument, but it probably does not matter that
much.  As this patch has Eli's blessing, I will apply it.

> From a41abce88ed3b833c5531208945474c9cd16284b Mon Sep 17 00:00:00 2001
> From: Joseph Turner <joseph <at> breatheoutbreathe.in>
> Date: Sat, 6 May 2023 14:49:43 -0700
> Subject: [PATCH] Fix: (package-vc--build-documentation) Relative @include
>  statements
>
> ---
>  lisp/emacs-lisp/package-vc.el | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/lisp/emacs-lisp/package-vc.el b/lisp/emacs-lisp/package-vc.el
> index 489610e2a1e..63c10285ca7 100644
> --- a/lisp/emacs-lisp/package-vc.el
> +++ b/lisp/emacs-lisp/package-vc.el
> @@ -381,6 +381,7 @@ FILE can be an Org file, indicated by its \".org\" extension,
>  otherwise it's assumed to be an Info file."
>    (let* ((pkg-name (package-desc-name pkg-desc))
>           (default-directory (package-desc-dir pkg-desc))
> +         (docs-directory (expand-file-name (file-name-directory file)))
>           (output (expand-file-name (format "%s.info" pkg-name)))
>           clean-up)
>      (when (string-match-p "\\.org\\'" file)
> @@ -395,7 +396,9 @@ otherwise it's assumed to be an Info file."
>        (erase-buffer)
>        (cond
>         ((/= 0 (call-process "makeinfo" nil t nil
> -                            "--no-split" file "-o" output))
> +                            "-I" docs-directory
> +                            "--no-split" file
> +                            "-o" output))
>          (message "Failed to build manual %s, see buffer %S"
>                   file (buffer-name)))
>         ((/= 0 (call-process "install-info" nil t nil

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