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linux/debian/bin/genpatch-pfkernel

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#!/bin/sh
set -ef
export GIT_OPTIONAL_LOCKS=0
w=$(git rev-parse --path-format=absolute --show-toplevel) ; : "${w:?}" ; cd "$w"
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dst='debian/patches/pf-tmp'
src='../linux-extras'
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branches='amd-pstate amd-rapl cpuidle crypto fixes kbuild pksm xfs zstd'
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if [ -d "${dst}" ] ; then rm -rf "${dst}" ; fi
mkdir -p "${dst}"
kver=
if [ -n "$1" ] ; then
kver="$1"
else
kver=$(dpkg-parsechangelog --show-field=Version | sed -E 's/^[0-9]+://;s/-[^-]*$//' | cut -d. -f1-2)
fi
from="upstream/linux-${kver}.y"
t=$(mktemp -d) ; : "${t:?}"
cp -ar "${src}" "$t/"
cd "$t/${src##*/}"
git config advice.skippedCherryPicks false
for b in ${branches} ; do
ref="pf/$b-${kver}"
r="tmp-rebase-$b"
git switch --detach "${ref}"
git switch -C "$r"
if git rebase "${from}" ; then
[ -d "$w/${dst}/$b/" ] || mkdir -p "$w/${dst}/$b"
set +e
env -C "$w" git ls-files -z | grep -zF "${dst}/$b/" | grep -zFv '/.' | env -C "$w" -u GIT_OPTIONAL_LOCKS xargs -r -0 git rm -f
find "$w/${dst}/$b/" -name '*.patch' -type f -exec rm -f {} +
set -e
git format-patch -N --subject-prefix='' --output-directory "$w/${dst}/$b" "${from}..$r"
else
echo >&2
git rebase --abort
echo >&2
fi
git switch -q --detach "${ref}"
git branch -D "$r"
echo >&2
done
cd "$w" ; rm -rf "$t"
echo >&2
echo 'put in debian/patches/series' >&2
echo >&2
find "${dst}/" -type f -name '*.patch' | sed -E 's#^debian/patches/##' | sort -V