1 files changed, 80 insertions, 0 deletions
diff --git a/Makefile.deblob b/Makefile.deblob
new file mode 100644
index 000000000000..bd172144b388
--- /dev/null
+++ b/Makefile.deblob
@@ -0,0 +1,80 @@
+#    Copyright (C) 2021 Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
+#
+#    This program is free software; you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation; either version 2 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program; if not, write to the Free Software
+#    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+CURL ?= curl
+CURLOPTS ?= -L
+MIRROR ?= https://cdn.kernel.org/pub/linux/kernel/v5.x
+
+.PHONY: all deblob-check delete-linux-tree verify-linux-signature
+
+all: deblob-5.10
+	./deblob-5.10
+
+delete-linux-tree:
+	# Delete current linux-libre source code to make sure that all the files
+	# that are there were processed by the deblob scripts.
+	rm -f \
+		COPYING        \
+		CREDITS        \
+		Kbuild         \
+		Kconfig        \
+		MAINTAINERS    \
+		Makefile       \
+		README
+	rm -rf \
+		arch/          \
+		block/         \
+		certs/         \
+		crypto/        \
+		Documentation/ \
+		drivers/       \
+		fs/            \
+		include/       \
+		init/          \
+		ipc/           \
+		kernel/        \
+		lib/           \
+		LICENSES/      \
+		mm/            \
+		net/           \
+		samples/       \
+		scripts/       \
+		security/      \
+		sound/         \
+		tools/         \
+		usr/           \
+		virt/
+
+verify-linux-signature: deblob/linux-5.10.72.tar deblob/linux-5.10.72.tar.sign
+	# Greg Kroah-Hartman
+	gpg --list-keys 647F28654894E3BD457199BE38DBBDC86092693E || \
+		gpg --import deblob/647F28654894E3BD457199BE38DBBDC86092693E.gpg
+	gpg --verify $<.sign $<
+
+deblob-check:
+	ln -sf deblob/$@ $@
+
+deblob-5.10: deblob/linux-5.10.72.tar deblob-check delete-linux-tree verify-linux-signature
+	tar x -f $< --strip=1
+	ln -sf deblob/$@ ./
+
+deblob/%.tar.sign:
+	$(CURL) $(CURLOPTS) $(MIRROR)/$(notdir $@) -o $@
+
+deblob/%.tar.xz:
+	$(CURL) $(CURLOPTS) $(MIRROR)/$(notdir $@) -o $@
+
+deblob/%.tar: deblob/%.tar.xz
+	unxz --verbose $<