libreboot!

this is forked from the "libre" branch in osboot, which is itself a libre,
deblobbed fork of osboot, a blobbed up fork of libreboot

libreboot needed to be purged clean. this is the new libreboot development
repository. the old one has been abandoned

resources/scripts/download/coreboot

@@ -0,0 +1,226 @@
+#!/bin/bash
+
+#  helper script: download coreboot
+#
+#	Copyright (C) 2014, 2015, 2016, 2020, 2021 Leah Rowe <info@minifree.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 3 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, see <http://www.gnu.org/licenses/>.
+#
+
+[ "x${DEBUG+set}" = 'xset' ] && set -v
+set -u -e
+
+# set this when you want to modify each coreboot tree
+# for example, you want to test custom patches
+# NODELETE= ./download coreboot
+deleteblobs="true"
+[ "x${NODELETE+set}" = 'xset' ] && deleteblobs="false"
+
+# Error handling is extreme in this script.
+# This script handles the internet, and Git. Both are inherently unreliable.
+
+[[ -f build_error ]] && rm -f build_error
+
+rm -f resources/coreboot/*/seen
+
+downloadfor() {
+
+	board="${1}"
+	cbtree="undefined"
+	cbrevision="undefined"
+
+	# The loop will always exit, but this while loop is crafted
+	# such that a tree referencing a tree that references another tree is possible
+	# (and so on)
+	while true; do
+		cbrevision="undefined"
+		cbtree="undefined"
+
+		if [ ! -f "resources/coreboot/${board}/board.cfg" ]; then
+			printf "ERROR: download/coreboot: board.cfg does not exist for '%s'\n" "${board}"
+			return 1
+		fi
+
+		if [ -f "resources/coreboot/${board}/seen" ]; then
+			printf "ERROR: download/coreboot: logical loop; '%s' board.cfg refers to another tree, which ultimately refers back to '%s'.\n" "${board}" "${board}"
+			return 1
+		fi
+
+		# This is to override $cbrevision and $cbtree
+		source "resources/coreboot/${board}/board.cfg" || touch ../build_error
+		if [ -f build_error ]; then
+			printf "ERROR: download/coreboot: problem sourcing %s/board.cfg\n" "${board}"
+			return 1
+		fi
+		touch "resources/coreboot/${board}/seen"
+
+		if [ "${board}" != "${cbtree}" ]; then
+			board="${cbtree}"
+		else
+			if [ "${cbtree}" = "undefined" ]; then
+				printf "ERROR: download/coreboot: tree name undefined for '%s\n'" "${board}"
+				return 1
+			fi
+
+			if [ "${cbrevision}" = "undefined" ]; then
+				printf "ERROR: download/coreboot: commit ID undefined for '%s'\n" "${board}"
+				return 1
+			fi
+			break
+		fi
+	done
+
+	rm -f resources/coreboot/*/seen
+
+	if [ -d "coreboot/${cbtree}" ]; then
+		printf "REMARK: download/coreboot: directory for '%s' already exists. Skipping setup.\n" "${cbtree}"
+		if [ "${cbtree}" != "${1}" ]; then
+			printf "(for board: '${1}')\n"
+		fi
+		return 0
+	fi
+
+	if [ ! -d coreboot ]; then
+		mkdir "coreboot/"
+	fi
+	if [ ! -d coreboot ]; then
+		printf "ERROR: download/coreboot: directory not created. Check file system permissions\n"
+		return 1
+	fi
+
+	cd "coreboot/"
+
+	if [ ! -d coreboot/.git ] && [ -d coreboot ]; then
+		rm -Rf coreboot/
+	fi
+
+	if [ ! -d coreboot ]; then
+		printf "Download coreboot from upstream:\n"
+		git clone https://review.coreboot.org/coreboot || rm -Rf coreboot
+		if [ ! -d coreboot ]; then
+			printf "WARNING: Upstream failed. Trying backup github repository:\n"
+			git clone https://github.com/coreboot/coreboot.git || rm -Rf coreboot
+		fi
+		if [ ! -d coreboot ]; then 
+			printf "ERROR: download/coreboot: Problem with git-clone. Network issue?\n"
+			cd ../; return 1
+		fi
+	else
+		( cd coreboot/; git pull || touch ../build_error )
+		if [ -f ../build_error ]; then
+			printf "ERROR: download/coreboot: Problem with git-pull. Network issue?\n"
+			cd ../; return 1
+		fi
+	fi
+
+	cp -R coreboot "${cbtree}" || touch ../build_error
+	if [ -d ../build_error ]; then
+		printf "ERROR: download/coreboot: Unable to copy directory. Check file system permissions or free space.\n"
+		rm -Rf "${cbtree}/"
+		cd ../; return 1
+	fi
+
+	cd ${cbtree}/
+
+	git reset --hard ${cbrevision} || touch ../../build_error
+	if [ -f ../../build_error ]; then
+		printf "ERROR: download/coreboot: Unable to reset to commit ID/tag '%s' for board '%s' on tree '%s'\n" "${cbrevision}" "${1}" "${cbtree}"
+		cd ../../; return 1
+	fi
+
+	git submodule update --init || touch ../../build_error
+	if [ -f ../../build_error ]; then
+		printf "ERROR: download/coreboot: Unable to update submodules for tree '%s'\n" "${cbtree}"
+		cd ../../; return 1
+	fi
+
+	for patch in ../../resources/coreboot/${cbtree}/patches/*.patch; do
+		if [ ! -f "${patch}" ]; then
+			continue
+		fi
+
+		git am "${patch}" || touch ../../build_error
+		if [ -f ../../build_error ]; then
+			printf "ERROR: download/coreboot: Unable to apply patch '%s' for board '%s' on tree '%s'" "${patch}" "${1}" "${cbtree}"
+			git am --abort
+			cd ../../; return 1
+		fi
+	done
+
+	# extra.sh could be used to patch submodules, if you wanted to
+	# It's impossible to predict what submodules will be available, and
+	# it's rare that you'd want to patch them, so this is handled by
+	# extra.sh on a per-board basis
+	# In fact, extra.sh can be used for anything you want.
+	if [ -f "../../resources/coreboot/${board}/extra.sh" ]; then
+		"../../resources/coreboot/${board}/extra.sh" || touch ../../build_error
+		if [ -f ../../build_error ]; then
+			cd ../../; return 1
+		fi
+		return 0
+	else
+		cd ../../
+		return 0
+	fi
+}
+
+printf "Downloading coreboot and (if exist in build system) applying patches\n"
+
+if [ $# -gt 0 ]; then
+	for board in "${@}"; do
+		rm -f resources/coreboot/*/seen
+		downloadfor "${board}"
+		if [ -f build_error ]; then break; fi
+	done
+else
+	for board in resources/coreboot/*; do
+		rm -f resources/coreboot/*/seen
+		if [ ! -d "${board}/" ]; then
+			continue
+		fi
+		downloadfor "${board##*/}"
+		if [ -f build_error ]; then break; fi
+	done
+fi
+
+rm -f resources/coreboot/*/seen
+
+rm -f "build_error"
+printf "\n\n"
+if [ "${deleteblobs}" = "true" ]; then
+	rm -Rf coreboot/coreboot/
+	rm -Rf coreboot/.git* coreboot/*/.git* coreboot/*/3rdparty/*/.git*
+	rm -Rf coreboot/*/util/nvidia/cbootimage/.git*
+	for cbdir in coreboot/*; do
+		if [ ! -d "${cbdir}" ]; then continue; fi
+		cbtree="${cbdir##coreboot/}"
+		cbtree="${cbtree%/}"
+		if [ ! -d "coreboot/${cbtree}" ]; then continue; fi
+		bloblist="resources/coreboot/${cbtree}/blobs.list"
+		if [ -f "${bloblist}" ]; then
+			for blobfile in $(cat "${bloblist}"); do
+				printf "Deleting blob: 'coreboot/%s/%s'\n" "${cbtree}" "${blobfile}"
+				rm -f "coreboot/${cbtree}/${blobfile}"
+			done
+		fi
+		rmlist="resources/coreboot/${cbtree}/rm.list"
+		if [ -f "${rmlist}" ]; then
+			for rmentry in $(cat "${rmlist}"); do
+				printf "Deleting directory to save space: 'coreboot/%s/%s'\n" "${cbtree}" "${rmentry}"
+				rm -Rf "coreboot/${cbtree}/${rmentry}"
+			done
+		fi
+	done
+fi
+exit 0