[1/2] image-bootfiles.bbclass: new class, copy boot files to /boot on rfs

image-bootfiles class copy files listed IMAGE_BOOT_FILES
to the /boot directory of the root filesystem.

This is useful when there is no explicit boot partition but all boot
files should instead reside inside the root filesystem.

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
---
 meta/classes/image-bootfiles.bbclass | 69 ++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 meta/classes/image-bootfiles.bbclass

Wrong mailing list. Also why not install these from regular packages?

Alex

On Thu 23. May 2024 at 9.33, Marcus Folkesson via lists.yoctoproject.org
<marcus.folkesson=gmail.com@lists.yoctoproject.org> wrote:

> image-bootfiles class copy files listed IMAGE_BOOT_FILES
> to the /boot directory of the root filesystem.
>
> This is useful when there is no explicit boot partition but all boot
> files should instead reside inside the root filesystem.
>
> Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
> ---
>  meta/classes/image-bootfiles.bbclass | 69 ++++++++++++++++++++++++++++
>  1 file changed, 69 insertions(+)
>  create mode 100644 meta/classes/image-bootfiles.bbclass
>
> diff --git a/meta/classes/image-bootfiles.bbclass
> b/meta/classes/image-bootfiles.bbclass
> new file mode 100644
> index 0000000000..850e14e4bb
> --- /dev/null
> +++ b/meta/classes/image-bootfiles.bbclass
> @@ -0,0 +1,69 @@
> +#
> +# Writes IMAGE_BOOT_FILES to the /boot directory
> +#
> +# Copyright (C) 2024 Marcus Folkesson
> +# Author: Marcus Folkesson <marcus.folkesson@gmail.com>
> +#
> +# Licensed under the MIT license, see COPYING.MIT for details
> +# Inspired of bootimg-partition.py
> +#
> +# Usage: add INHERIT += "image-bootfiles" to your conf file
> +#
> +
> +def bootfiles_populate(d):
> +    import re
> +    from glob import glob
> +    import shutil
> +
> +    boot_files = d.getVar("IMAGE_BOOT_FILES")
> +    deploy_image_dir = d.getVar("DEPLOY_DIR_IMAGE")
> +    boot_dir = d.getVar("IMAGE_ROOTFS") + "/boot"
> +    install_files = []
> +
> +    if boot_files is None:
> +        return
> +
> +    # list of tuples (src_name, dst_name)
> +    deploy_files = []
> +    for src_entry in re.findall(r'[\w;\-\./\*]+', boot_files):
> +        if ';' in src_entry:
> +            dst_entry = tuple(src_entry.split(';'))
> +            if not dst_entry[0] or not dst_entry[1]:
> +                raise bb.parse.SkipRecipe('Malformed boot file entry: %s'
> % src_entry)
> +        else:
> +            dst_entry = (src_entry, src_entry)
> +
> +        deploy_files.append(dst_entry)
> +
> +    for deploy_entry in deploy_files:
> +        src, dst = deploy_entry
> +        if '*' in src:
> +            # by default install files under their basename
> +            entry_name_fn = os.path.basename
> +            if dst != src:
> +                # unless a target name was given, then treat name
> +                # as a directory and append a basename
> +                entry_name_fn = lambda name: \
> +                                os.path.join(dst,
> +                                             os.path.basename(name))
> +
> +
> +                srcs = glob(os.path.join(deploy_image_dir, src))
> +                for entry in srcs:
> +                    src = os.path.relpath(entry, deploy_mage_dir)
> +                    entry_dst_name = entry_name_fn(entry)
> +                    install_files.append((src, entry_dst_name))
> +            else:
> +                install_files.append((src, dst))
> +
> +    for entry in install_files:
> +        src, dst = entry
> +        image_src = os.path.join(deploy_image_dir, src)
> +        image_dst = os.path.join(boot_dir, dst)
> +        shutil.copyfile(image_src, image_dst)
> +
> +python bootfiles () {
> +   bootfiles_populate(d),
> +}
> +
> +IMAGE_PREPROCESS_COMMAND += "bootfiles;"
> --
> 2.44.0
>
>
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Hi Alex,

On Thu, May 23, 2024 at 09:36:30AM +0200, Alexander Kanavin wrote:
> Wrong mailing list. Also why not install these from regular packages?

Yes it is for the first patch.
The patch series touches both docs and openembedded-core.
I had not subscribed to docs so the patches were rejected, therefor I
resend it to docs only.

I think there is a win in using the same method as bootimg-partition
does.
Then it is the simple task to switch from a separate boot partition to
embed the boot files into the target root filesystem.

> 
> Alex

Best regards,
Marcus Folkesson

On Thu, 23 May 2024 at 09:48, Marcus Folkesson
<marcus.folkesson@gmail.com> wrote:
> I think there is a win in using the same method as bootimg-partition
> does.
> Then it is the simple task to switch from a separate boot partition to
> embed the boot files into the target root filesystem.

I don't know. It goes against the established practice for forming the
rootfs. /boot folder is not special.

Alex