GNU bug report logs - #69004
Cannot open lzip-compressed info manuals

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Francesco Turco <fturco <at> posteo.net>
To: bug-gnu-emacs <at> gnu.org
Subject: Cannot open lzip-compressed info manuals
Date: Fri, 09 Feb 2024 16:49:59 +0000

Hello.

I'm using GNU Emacs 29.2 on a Gentoo Linux system.

On this system, all info manuals are compressed with lzip and have a .lz
suffix.

When running M-x info and opening any info manual (e.g. the info manual
for bash), I get error messages similar to the following one:

> Info file `bash' does not exist; consider installing it

In reality the info manual for bash is available on my system:

$ file /usr/share/info/bash.info.lz 
/usr/share/info/bash.info.lz: lzip compressed data, version: 1

In info.el source code there is no instance of either "lzip" or "lz".
In particular, there is no lzip-related entry in the Info-suffix-list
variable definition.

In my opinion it would be nice to add support for lzip-compressed info
manuals to M-x info.

Message #8 received at 69004 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Francesco Turco <fturco <at> posteo.net>
Cc: 69004 <at> debbugs.gnu.org
Subject: Re: bug#69004: Cannot open lzip-compressed info manuals
Date: Fri, 09 Feb 2024 20:55:54 +0200

> From: Francesco Turco <fturco <at> posteo.net>
> Date: Fri, 09 Feb 2024 16:49:59 +0000
> 
> I'm using GNU Emacs 29.2 on a Gentoo Linux system.
> 
> On this system, all info manuals are compressed with lzip and have a .lz
> suffix.

Emacs doesn't (yet) support Info manuals compressed with lzip.

> When running M-x info and opening any info manual (e.g. the info manual
> for bash), I get error messages similar to the following one:
> 
> > Info file `bash' does not exist; consider installing it
> 
> In reality the info manual for bash is available on my system:
> 
> $ file /usr/share/info/bash.info.lz 
> /usr/share/info/bash.info.lz: lzip compressed data, version: 1
> 
> In info.el source code there is no instance of either "lzip" or "lz".
> In particular, there is no lzip-related entry in the Info-suffix-list
> variable definition.
> 
> In my opinion it would be nice to add support for lzip-compressed info
> manuals to M-x info.

Patches welcome to add lzip support to info.el.

Message #13 received at 69004-done <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: fturco <at> posteo.net
Cc: 69004-done <at> debbugs.gnu.org
Subject: Re: bug#69004: Cannot open lzip-compressed info manuals
Date: Sat, 10 Feb 2024 11:23:25 +0200

> Cc: 69004 <at> debbugs.gnu.org
> Date: Fri, 09 Feb 2024 20:55:54 +0200
> From: Eli Zaretskii <eliz <at> gnu.org>
> 
> > From: Francesco Turco <fturco <at> posteo.net>
> > Date: Fri, 09 Feb 2024 16:49:59 +0000
> > 
> > I'm using GNU Emacs 29.2 on a Gentoo Linux system.
> > 
> > On this system, all info manuals are compressed with lzip and have a .lz
> > suffix.
> 
> Emacs doesn't (yet) support Info manuals compressed with lzip.
> 
> > When running M-x info and opening any info manual (e.g. the info manual
> > for bash), I get error messages similar to the following one:
> > 
> > > Info file `bash' does not exist; consider installing it
> > 
> > In reality the info manual for bash is available on my system:
> > 
> > $ file /usr/share/info/bash.info.lz 
> > /usr/share/info/bash.info.lz: lzip compressed data, version: 1
> > 
> > In info.el source code there is no instance of either "lzip" or "lz".
> > In particular, there is no lzip-related entry in the Info-suffix-list
> > variable definition.
> > 
> > In my opinion it would be nice to add support for lzip-compressed info
> > manuals to M-x info.
> 
> Patches welcome to add lzip support to info.el.

I have now added that on master; closing.

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