Re: [Buildroot] [RFC PATCH 1/1] support/download: allow to use part of file in checksum checking

[Thomas Petazzoni via buildroot <buildroot@buildroot.org>]

On Thu, 27 Jul 2023 17:59:44 +0200
"Yann E. MORIN" <yann.morin.1998@free.fr> wrote:

>  2. for such packages, add a post-extract hook that prepares the license
>     file(s), and register those as _FOO_LICENSE_FILES instead. By using
>     code, you can search for patterns rather than depend on constant
>     line numbers.

Like:

# The Github repository doesn't contain the source code as-is: it
# contains a tarball with the kernel driver source code, and a
# self-extractible binary for the user-space parts. So we extract both
# below, and also extract the EULA text from the self-extractible binary
define GCNANO_BINARIES_EXTRACT_HELPER
        tar --strip-components=1 -xJf $(@D)/gcnano-driver-$(GCNANO_BINARIES_DRIVER_VERSION).tar.xz -C $(@D)
        awk 'BEGIN      { start = 0; } \
                /^EOEULA/  { start = 0; } \
                        { if (start) print; } \
                /<<EOEULA/ { start = 1; }' \
                $(@D)/gcnano-userland-multi-$(GCNANO_BINARIES_USERLAND_VERSION).bin > $(@D)/EULA
        cd $(@D) && sh gcnano-userland-multi-$(GCNANO_BINARIES_USERLAND_VERSION).bin --auto-accept
endef

GCNANO_BINARIES_POST_EXTRACT_HOOKS += GCNANO_BINARIES_EXTRACT_HELPER

(which among other things extracts the EULA file, that is used as a
license file)

Best regards,

Thomas
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com
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