From 6f6fba1dbdddb0e16a053ec6ed240da3b0fc7e2c Mon Sep 17 00:00:00 2001
From: "Justin M. Forbes" <jforbes@fedoraproject.org>
Date: Fri, 27 Jul 2018 13:36:51 -0500
Subject: [PATCH] Add headers tarball creation script

---
 scripts/create_headers_tarball.sh | 85 +++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100755 scripts/create_headers_tarball.sh

diff --git a/scripts/create_headers_tarball.sh b/scripts/create_headers_tarball.sh
new file mode 100755
index 000000000..e96fe57f4
--- /dev/null
+++ b/scripts/create_headers_tarball.sh
@@ -0,0 +1,85 @@
+#!/bin/bash
+#
+# This script is aimed at generating the headers from the kernel sources.
+# Please do a git checkout of the kernel sources, or run until %prep step of
+# kernel rpm build. Then go into the directory with the sources, and run this
+# script
+#
+# Author: Herton R. Krzesinski <herton@redhat.com>
+
+# ARCH_LIST below has the default list of supported architectures
+# (the architectures names may be different from rpm, you list here the
+# names of arch/<arch> directories in the kernel sources)
+ARCH_LIST="arm arm64 powerpc s390 x86"
+
+# If the kernel Makefile doesn't contain enough information for the tarball
+# release, you can specify the release of the package so it'll be included
+# in the name of the created tarball
+TB_RELEASE=""
+
+# If kernel Makefile has the package release number, you can specify the name of
+# Makefile variable here.
+MAKE_RELEASE=""
+
+# Extra string (usually dist tag) that goes into the tarball name
+EXTRA=""
+
+while [ ! -z "$1" ]; do
+	opt="$1"
+	case $opt in
+		--arch-list|-a)
+			ARCH_LIST="$2"
+			shift
+			;;
+		--extra|-e)
+			EXTRA="$2"
+			shift
+			;;
+		--make-release|-m)
+			MAKE_RELEASE=$2
+			shift
+			;;
+		--release|-r)
+			TB_RELEASE=$2
+			shift
+			;;
+		*)
+			echo "Unknown option ($1) to $0"
+			exit
+			;;
+	esac
+	shift
+done
+
+KVERSION=$(cat Makefile | sed -ne '/^VERSION\ =\ /{s///;p;q}')
+KPATCHLEVEL=$(cat Makefile | sed -ne '/^PATCHLEVEL\ =\ /{s///;p;q}')
+KSUBLEVEL=$(cat Makefile | sed -ne '/^SUBLEVEL\ =\ /{s///;p;q}')
+TB_VERSION=$KVERSION.$KPATCHLEVEL.$KSUBLEVEL
+if [ -z "$TB_RELEASE" ]; then
+	KEXTRAVERSION=$(cat Makefile | sed -ne '/^EXTRAVERSION\ =\ /{s///;p;q}')
+	DISTRO_RELEASE=""
+	if [ -n "$MAKE_RELEASE" ]; then
+		DISTRO_RELEASE=.$(cat Makefile | sed -ne "/^$MAKE_RELEASE\ =\ /{s///;p;q}")
+	fi
+	if [ -n "$KEXTRAVERSION" ]; then
+		KEXTRAVERSION=$(echo $KEXTRAVERSION | sed -e s/-/./)
+		TB_RELEASE=0$KEXTRAVERSION$DISTRO_RELEASE$EXTRA
+	else
+		TB_RELEASE=$DISTRO_RELEASE$EXTRA
+	fi
+fi
+
+headers_dir=$(mktemp -d)
+trap 'rm -rf "$headers_dir"' SIGHUP SIGINT SIGTERM EXIT
+
+make HDR_ARCH_LIST="$ARCH_LIST" INSTALL_HDR_PATH=$headers_dir headers_install_all
+find $headers_dir \
+	\( -name .install -o -name .check -o \
+	-name ..install.cmd -o -name ..check.cmd \) | xargs rm -f
+
+TARBALL=$PWD/kernel-headers-$TB_VERSION-$TB_RELEASE.tar.xz
+pushd $headers_dir
+	tar -Jcf $TARBALL *
+popd
+
+echo wrote $TARBALL