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qubes-linux-kernel/get-fedora-latest-config

97 lines
3.3 KiB

#!/bin/bash
# vim: set ts=4 sw=4 sts=4 et :
set -e
if [ "${VERBOSE:-0}" -ge 2 ] || [ "${DEBUG:-0}" -eq 1 ]; then
debug=1
set -x
fi
localdir="$(dirname "$(readlink -f "$0")")"
releasever="$1"
# Set to 1 to include rc srpm
rc="$2"
kernelver="$(cat "$localdir/version")"
kernelsrc="linux-$kernelver"
exit_clean() {
local exit_code=$?
rm -rf "$tmpdir"
exit "${exit_code}"
}
errecho() {
>&2 echo "$@"
}
# example of releasever: '29' or 'rawhide'
if [ "x$releasever" != "x" ]; then
if [[ ! "$releasever" =~ ^[1-9][0-9]$ ]] && [ "$releasever" != "rawhide" ]; then
errecho "Invalid release format"
exit 1
fi
elif [ "x$releasever" == "x" ]; then
listver="$(curl -s -L https://dl.fedoraproject.org/pub/fedora/linux/releases 2> /dev/null)"
releasever="$(echo "$listver" | sed -e 's/<[^>]*>//g' | awk '{print $1}' | grep -o "[1-9][0-9]" | tail -1)"
if ! [[ "$releasever" =~ ^[1-9][0-9]$ ]]; then
errecho "An error occurred while trying to determine latest Fedora version"
exit 1
fi
fi
# get the latest kernel rpm
latestver=$(dnf -q repoquery kernel-core --disablerepo=* --enablerepo=fedora --enablerepo=updates --releasever="$releasever")
if [ "$rc" != "1" ]; then
latestver=$(echo "$latestver" | grep -v "rc[0-9]*")
fi
latestver=$(echo "$latestver" | sort -V | tail -1 | cut -d ':' -f2)
latestrpm="kernel-core-$latestver.rpm"
if [ "$releasever" == 'rawhide' ]; then
releasever="$(echo "$latestver" | grep -o "fc[1-9][0-9]" | sed 's/fc//')"
fi
if [ "x$latestrpm" != "x" ] && [ "x$releasever" != "x" ]; then
key="$localdir/../builder-rpm/keys/RPM-GPG-KEY-fedora-$releasever-primary"
trap 'exit_clean' 0 1 2 3 6 15
tmpdir="$(mktemp -d -p "$localdir")"
# download latest kernel rpm
dnf -q download kernel-core --disablerepo=* --enablerepo=fedora --enablerepo=updates --releasever="$releasever"
mv "$latestrpm" "$tmpdir/$latestrpm.untrusted"
# check signature
mkdir -p "$tmpdir/rpmdb"
rpmkeys --dbpath="$tmpdir/rpmdb" --import "$key"
{ rpmkeys --dbpath="$tmpdir/rpmdb" --checksig "$tmpdir/$latestrpm.untrusted" | grep -q 'signatures OK' ; } || { errecho "Failed to check signature"; exit 1; }
mv "$tmpdir/$latestrpm.untrusted" "$tmpdir/$latestrpm"
# extract kernel sources in qubes-linux-kernel
tar xf "$localdir/$kernelsrc.tar.xz" -C "$tmpdir"
# get latest config and put it in extracted sources
rpm2cpio "$tmpdir/$latestrpm" | cpio --quiet -i --to-stdout "./lib/modules/$latestver/config" > "$tmpdir/$kernelsrc/.config"
# generate new config with: yes '' | make oldconfig
cd "$tmpdir/$kernelsrc/"
## drop config settings which depend on Fedora patches and adjust for the small version difference
if [ "$debug" == "1" ]; then
yes '' | make oldconfig
else
yes '' | make oldconfig > /dev/null 2>&1
fi
## remove comments in header
sed -i '1,4d' "$tmpdir/$kernelsrc/.config"
# create final config
cat - "$tmpdir/$kernelsrc/.config" > "$localdir/config-base-$(echo "$latestver" | cut -d '-' -f1)" << EOF
# Base config based on Fedora's config ($latestrpm)
# Only modification is \`yes '' | make oldconfig\` to drop config settings which
# depend on Fedora patches and adjust for the small version difference.
EOF
rm -rf "$tmpdir"
else
errecho "Unable to find the latest kernel rpm for Fedora $releasever"; exit 1
fi