From: Arnout Vandecappelle <arnout@mind.be>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH 12/15 v4] fs: use a common tarball as base for the other filesystems
Date: Sat, 31 Mar 2018 20:53:17 +0200 [thread overview]
Message-ID: <13105184-bdbc-bb8c-5301-dd0748a17901@mind.be> (raw)
In-Reply-To: <8b15f15c58976dd080a4daf6969828bcf8291f8c.1522487149.git.yann.morin.1998@free.fr>
On 31-03-18 11:05, Yann E. MORIN wrote:
> Currently, some filesystems may want to tweak the content of the target
> directory, create special device nodes etc... This all means that:
>
> - the content of the target directory for a specific filesystems may
> depend on whether another filesystem is enabled or not; for example,
> cpio will create a /init script or symlink and a /dev/console node;
>
> - the filesysems can not be built in parallel, because they may change
> the content of the target directory wil another is being assembled.
>
> Furthermore, the same fakeroot script is executed over-and-over-again
> for each filesystem, to create the device nodes, the users and their
> homes and files, and setting permissions...
>
> We introduce an intermediate tarball, for which we do the full fakeroot
> shebang.
>
> That tarball then serves as the base for the other filesystems, with a
> very simple fakeroot script that untars the common tarball, and calls
> the actual filesystem image generator on that.
>
> Note that we use a very simple tar command to generate the intermediate
> tarball, because we are not concerned with reproducibility of the
> archive itself (only of the archived files).
Could be good to mention explicitly in the commit log that now the
THIS_IS_NOT_YOUR_ROOT_FILESYSTEM is "removed" by excluding it from the tarball.
Otherwise LGTM.
Regards,
Arnout
>
> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
> Cc: Arnout Vandecappelle <arnout@mind.be>
> ---[snip]
--
Arnout Vandecappelle arnout at mind be
Senior Embedded Software Architect +32-16-286500
Essensium/Mind http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint: 7493 020B C7E3 8618 8DEC 222C 82EB F404 F9AC 0DDF
next prev parent reply other threads:[~2018-03-31 18:53 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-31 9:05 [Buildroot] [PATCH 00/15 v4] fs: support parallel filesystems build Yann E. MORIN
2018-03-31 9:05 ` [Buildroot] [PATCH 01/15 v4] fs: run filesystem hooks under fakeroot Yann E. MORIN
2018-03-31 9:05 ` [Buildroot] [PATCH 02/15 v4] fs/cpio: don't extend packages' permissions table Yann E. MORIN
2018-03-31 17:43 ` Peter Korsgaard
2018-03-31 9:05 ` [Buildroot] [PATCH 03/15 v4] fs/iso9660: rename internal variable Yann E. MORIN
2018-03-31 9:05 ` [Buildroot] [PATCH 04/15 v4] core: introduce intermediate BASE_TARGET_DIR variable Yann E. MORIN
2018-03-31 9:05 ` [Buildroot] [PATCH 05/15 v4] fs: set per-rootfs variable name Yann E. MORIN
2018-03-31 18:28 ` Arnout Vandecappelle
2018-03-31 9:05 ` [Buildroot] [PATCH 06/15 v4] fs: define per-rootfs directory Yann E. MORIN
2018-03-31 9:05 ` [Buildroot] [PATCH 07/15 v4] fs: use a per-rootfs fakeroot script Yann E. MORIN
2018-03-31 17:50 ` Peter Korsgaard
2018-03-31 18:26 ` Arnout Vandecappelle
2018-03-31 18:43 ` Arnout Vandecappelle
2018-03-31 9:05 ` [Buildroot] [PATCH 08/15 v4] fs: split per-rootfs dependency line Yann E. MORIN
2018-03-31 9:05 ` [Buildroot] [PATCH 09/15 v4] fs: introduce per-rootfs TARGET_DIR variable Yann E. MORIN
2018-03-31 18:30 ` Arnout Vandecappelle
2018-03-31 18:51 ` Yann E. MORIN
2018-03-31 18:57 ` Arnout Vandecappelle
2018-03-31 19:11 ` Yann E. MORIN
2018-03-31 9:05 ` [Buildroot] [PATCH 10/15 v4] fs: new intermediate rootfs-common to gather common dependencies Yann E. MORIN
2018-03-31 9:05 ` [Buildroot] [PATCH 11/15 v4] fs: introduce a macro for reproducible command Yann E. MORIN
2018-03-31 9:05 ` [Buildroot] [PATCH 12/15 v4] fs: use a common tarball as base for the other filesystems Yann E. MORIN
2018-03-31 18:53 ` Arnout Vandecappelle [this message]
2018-03-31 9:05 ` [Buildroot] [PATCH 13/15 v4] fs: run packages' filesystem hooks in a copy of target/ Yann E. MORIN
2018-03-31 19:04 ` Arnout Vandecappelle
2018-03-31 20:27 ` Peter Korsgaard
2018-03-31 21:09 ` Arnout Vandecappelle
2018-04-01 9:54 ` Peter Korsgaard
2018-03-31 9:06 ` [Buildroot] [PATCH 14/15 v4] fs: get rid of package-provided post-fs hooks Yann E. MORIN
2018-03-31 9:06 ` [Buildroot] [PATCH 15/15 v4] fs: remove intermediate artefacts Yann E. MORIN
2018-03-31 17:53 ` Peter Korsgaard
2018-03-31 18:53 ` [Buildroot] [PATCH 00/15 v4] fs: support parallel filesystems build Peter Korsgaard
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