linux-kernel - Re: [kernel.org users] XZ Migration discussion

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Date:	Wed, 17 Feb 2010 12:25:04 +0200
From:	Petri Kaukasoina <kaukasoina907m57kr9@....fi>
To:	Willy Tarreau <w@....eu>
Cc:	James Cloos <cloos@...loos.com>, Jean Delvare <khali@...ux-fr.org>,
	lasse.collin@...aani.org,
	Phillip Lougher <phillip@...gher.demon.co.uk>,
	linux-kernel <linux-kernel@...r.kernel.org>, mirrors@...nel.org,
	users@...nel.org, "FTPAdmin Kernel.org" <ftpadmin@...nel.org>,
	Pavel Machek <pavel@....cz>
Subject: Re: [kernel.org users] XZ Migration discussion

On Wed, Feb 17, 2010 at 06:40:47AM +0100, Willy Tarreau wrote:
> On Mon, Feb 15, 2010 at 04:31:59PM -0500, James Cloos wrote:
> > >>>>> "W" == Willy Tarreau <w@....eu> writes:
> > 
> > W> Well, I personally like to be able to simply run "less patch-2.6.27.45.gz"
> > W> and have it transparently uncompressed and dumped on my terminal. It
> > W> doesn't do that on bz2. We could find multiple examples.
> > 
> > It does here, and lzma & xz, too.  And has since just days after Lasse
> > annouced that the new name would be xz.
> > 
> > Your LESSOPEN controls that, and can be easily coded to support any archive.
> 
> Just checked and I found it funny to see that patch-2.6.1.bz2 is not
> correctly opened while 2.6.27.45.bz2 is.


There is a bug in lesspipe.sh, at least here. It confuses it with compresses
man pages.

--- lesspipe.sh~        2009-11-06 02:14:58.000000000 +0200
+++ lesspipe.sh 2010-02-17 12:19:09.000000000 +0200
@@ -50,6 +50,7 @@

*.1.bz2|*.2.bz2|*.3.bz2|*.4.bz2|*.5.bz2|*.6.bz2|*.7.bz2|*.8.bz2|*.9.bz2|*.n.bz2|*.man.bz2)
# compressed *roff src?
     if bzip2 -dc "$1" | file - | grep roff 1> /dev/null ; then
       bzip2 -dc "$1" | nroff -S -mandoc -
+    else bzip2 -dc "$1"  2>/dev/null
     fi ;;
   *.gz) gzip -dc "$1"  2>/dev/null ;;
   *.bz2) bzip2 -dc "$1" 2>/dev/null ;;
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