linux-kernel - Re: [tup] Tup with Linux kernel modules

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Date:	Wed, 26 Jan 2011 12:05:49 -0800
From:	Anatol Pomozov <anatol.pomozov@...il.com>
To:	tup-users@...glegroups.com
Cc:	"marekfridrich@...oo.com" <marekfridrich@...oo.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [tup] Tup with Linux kernel modules

On Wed, Jan 26, 2011 at 11:59 AM, mcgrof <mcgrof@...il.com> wrote:
> Just curious if anyone has used tup to build the Linux kernel.
>
> http://gittup.org/tup/make_vs_tup.html

Check gittup http://gittup.org/gittup/

This is a Gentoo-like distributive that uses Tup tool. The distro
includes kernel/gcc/glib/zlib/binutils/ncurses/openssh/openssl/mplayer/...
and some other projects.

> Looks sexy.

And it is *very* fast for incremental builds. Just a short snippet
from the gittup page:

[marf@...tainfalcon gittup]$ vi nethack/src/spell.c
[marf@...tainfalcon gittup]$ vi busybox/coreutils/ls.c
[marf@...tainfalcon gittup]$ time tup upd -j2
Executing Commands
[    0/9    ] busybox/coreutils/CC ls.c
[    1/9    ] nethack/CC src/spell.c
[    2/9    ] busybox/coreutils/LD built-in.o
[    3/9    ] busybox/LD busybox
[    4/9    ] nethack/LD nethack
[    5/9    ] initrd/bin/CP busybox
[    6/9    ] initrd/bin/CP nethack
[    7/9    ] initrd/MKINITRD
[    8/9    ] initrd/GZIP initrd
[    9/9    ]

real    0m1.571s
user    0m1.888s
sys     0m0.269s

Rebuilding whole system in 1.5 sec, isn't it cool?
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