build

#!/bin/sh
# Change these when there's a new kernel or firmware version
kver=3.10.0-693.11.6
fver=20170606-57.gitc990aae

# Sadly, you may have to change these URLs when new versions of the OS are
# released, since there won't be an 'updates' directory at first.I wish 
# there was a way to do this that didn't require that.
KBASEURL=http://mirror.centos.org/centos-7/7/updates/x86_64/Packages
FBASEURL=http://mirror.centos.org/centos-7/7/updates/x86_64/Packages


# You shouldn't have to change anything below here
set -e -E
top=`pwd`
workdir="$top/work"
outdir="$top/output"

KSOURCES="
kernel-$kver.el7.x86_64.rpm
kernel-abi-whitelists-$kver.el7.noarch.rpm
kernel-debug-$kver.el7.x86_64.rpm
kernel-debug-devel-$kver.el7.x86_64.rpm
kernel-devel-$kver.el7.x86_64.rpm
kernel-doc-$kver.el7.noarch.rpm
kernel-headers-$kver.el7.x86_64.rpm
"

FSOURCES="
linux-firmware-$fver.el7.noarch.rpm
"

download() {
    if [ -f "sources/$1" ]; then
        echo "  Not downloading: $1"
    else 
        echo "  Downloading: $1"
        if ! curl -s -f $2 -o sources/$1; then
            echo "ERROR: Failed to download $1 (curl returned $?)"
            exit 1
        fi
    fi

    echo -n "    " 
    if ! (cd sources; rpm -K $1); then
        echo "ERROR: Failed to verify $1 (rpm -K returned $?)"
        exit 1
    fi
}

mkdir -p sources
rpm --import RPM-GPG-KEY-CentOS-7

echo "Downloading sources:"
for i in $KSOURCES
do
    download "$i" "$KBASEURL/$i"
done

for i in $FSOURCES
do
    download "$i" "$FBASEURL/$i"
done

echo
echo "Source files all ok, building:"

rpmbuild -bb \
    --define "_topdir $top" \
	--define "_rpmdir $outdir" \
	--define "_rpmfilename %%{NAME}-%%{VERSION}-%%{RELEASE}.%%{ARCH}.rpm" \
	--define "_sourcedir $top/sources" \
	--define "_specdir $top" \
	--define "_srcrpmdir $outdir" \
	--define "_builddir $workdir/BUILD" \
	--define "_buildrootdir $workdir/BUILDROOT" \
	kernel-bp-3.10.spec

if [ $? -eq 0 ]; then
    rm -rf "$workdir"
fi