[OE-core] [PATCH v2 2/2] buildhistory: support generating sha256 checksums of regular files
Jacob Kroon
jacob.kroon at gmail.com
Sat Jan 12 19:35:32 UTC 2019
On Wed, Jan 9, 2019 at 9:31 PM Jacob Kroon <jacob.kroon at gmail.com> wrote:
>
> Introduce 'sha256' in BUILDHISTORY_FEATURES and enable it by default
> when doing reproducible builds.
>
> When enabled this will additionally create:
>
> files-in-package-sha256.txt
> files-in-image-sha256.txt
> files-in-sdk-sha256.txt
>
> containing the sha256 checksums of regular files.
>
> Signed-off-by: Jacob Kroon <jacob.kroon at gmail.com>
> ---
> meta/classes/buildhistory.bbclass | 10 ++++++++--
> 1 file changed, 8 insertions(+), 2 deletions(-)
>
> Changes in v2:
> * Switch to sha256
> * Let find only build the arguments and execute sha256sum once
> * Use single quotes in inline python code
>
> diff --git a/meta/classes/buildhistory.bbclass b/meta/classes/buildhistory.bbclass
> index 33eb1b00f6..84f85da0bd 100644
> --- a/meta/classes/buildhistory.bbclass
> +++ b/meta/classes/buildhistory.bbclass
> @@ -7,7 +7,8 @@
> # Copyright (C) 2007-2011 Koen Kooi <koen at openembedded.org>
> #
>
> -BUILDHISTORY_FEATURES ?= "image package sdk"
> +BUILDHISTORY_FEATURES ?= "image package sdk \
> + ${@ 'sha256' if bb.utils.to_boolean(d.getVar('BUILD_REPRODUCIBLE_BINARIES')) else ''}"
> BUILDHISTORY_DIR ?= "${TOPDIR}/buildhistory"
> BUILDHISTORY_DIR_IMAGE = "${BUILDHISTORY_DIR}/images/${MACHINE_ARCH}/${TCLIBC}/${IMAGE_BASENAME}"
> BUILDHISTORY_DIR_PACKAGE = "${BUILDHISTORY_DIR}/packages/${MULTIMACH_TARGET_SYS}/${PN}"
> @@ -526,7 +527,12 @@ buildhistory_list_files() {
> eval ${FAKEROOTENV} ${FAKEROOTCMD} $find_cmd
> else
> eval $find_cmd
> - fi | sort -k5 | sed 's/ * -> $//' > $2 )
> + fi | sort -k5 | sed 's/ * -> $//' > $2
> + if [ "${@bb.utils.contains('BUILDHISTORY_FEATURES', 'sha256', '1', '0', d)}" = "1" ] ; then
> + sha256filename=$(echo $2 | sed 's/\.txt$/-sha256.txt/')
> + find -type f -exec sha256sum {} + | sort -k2 > $sha256filename
> + [ -s $sha256filename ] || rm $sha256filename # remove result if empty
> + fi )
> }
>
> buildhistory_list_pkg_files() {
> --
> 2.11.0
Ignore this patch, I completely missed the "task"
BUILDHISTORY_FEATURE, which seems to do this already.
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