build-env.sh

#!/bin/bash
set -e
export HOME=/tmp
source /etc/profile
shopt -s expand_aliases
NPROC=$(nproc)

# https://git.kernel.org/pub/scm/git/git.git/
export GIT_TAG=v2.54.0
# https://git.kernel.org/pub/scm/utils/dtc/dtc.git
export DTC_TAG=v1.7.2
# https://git.kernel.org/pub/scm/devel/sparse/sparse.git
export SPARSE_TAG=master
# https://repo.or.cz/smatch.git
export SMATCH_TAG=master
# https://github.com/devicetree-org/dt-schema/tags
export DTSCHEMA_REV=v2026.04
# https://github.com/masoncl/review-prompts
export REVIEW_PROMPTS=main
# https://github.com/facebookexperimental/semcode
export SEMCODE_TAG=main
# Claude version to use
export CLAUDE_VERSION=2.1.87

ARIA_OPTS=( --summary-interval=5 --timeout=180 --retry-wait=10 -m 0 -x 10 -j 10 )
# Get latest pip and packages in the "virtual env"
if [ -f "/usr/local/venv/bin/activate" ]; then
	. /usr/local/venv/bin/activate
fi

download_build_install_git()
{
	local FILE URL
	set -x
	FILE=git-"$GIT_TAG".tar.gz
	URL="https://git.kernel.org/pub/scm/git/git.git/snapshot/${FILE}"

	cd /tmp/
	aria2c "${ARIA_OPTS[@]}" -o "$FILE" "$URL"
	mkdir /tmp/git
	tar -C /tmp/git --strip-components=1 -xvf "$FILE"
	rm $FILE
	cd /tmp/git
	make -j "$NPROC" prefix=/usr/local
	make -j "$NPROC" prefix=/usr/local install
	cd /tmp
	rm -rf /tmp/git*
	set +x
}

download_build_install_python_deps()
{
	python -m pip install --upgrade pip
	python -m pip install --upgrade setuptools
	python -m pip install --upgrade ruamel.yaml
	# scripts/spdxcheck.py dependencies
	python -m pip install --upgrade  ply gitpython yamllint rfc3987 pylibfdt
	python -m pip install git+https://github.com/devicetree-org/dt-schema.git@$DTSCHEMA_REV
	# Install patchwise and it's dependencies
	python -m pip install git+https://github.com/nmenon/PatchWise.git@kernel_patch_verify_patchwise
	# HACK - Just dont stick around with 20.0.0 clang.. use the bleeding edge..
	#find /usr/local/venv/lib/python3*/site-packages/patchwise -iname *.py|xargs sed -ie "s/20.0.0/23.0.0/g"
	rm -rf "/tmp/.cache/"  /tmp/get-pip.py
}

clone_and_cd()
{
	cd /tmp &&
	git clone --progress --depth=1 --branch "$1" "$2" "$3" &&
	cd /tmp/"$3"
	return $?
}

download_build_install_dtc()
{
	local FILE URL
	FILE='dtc'
	URL="https://git.kernel.org/pub/scm/utils/dtc/dtc.git"

	clone_and_cd "$DTC_TAG" "$URL" "$FILE"
	make -j "$NPROC" PREFIX=/usr/local SETUP_PREFIX=/usr/local install NO_PYTHON=1
	cd /tmp
	rm -rf /tmp/"$FILE"
}

download_build_install_sparse()
{
	local FILE URL
	FILE='sparse'
	URL="https://git.kernel.org/pub/scm/devel/sparse/sparse.git"

	clone_and_cd "$SPARSE_TAG" "$URL" "$FILE"
	make -j "$NPROC" PREFIX=/usr/local install
	cd /tmp
	rm -rf /tmp/"$FILE"
}

download_build_install_smatch()
{
	local FILE URL
	FILE='smatch'
	URL="https://repo.or.cz/smatch.git"

	clone_and_cd "$SMATCH_TAG" "$URL" "$FILE"
	make -j "$NPROC" PREFIX=/usr/local/smatch install
	echo -e '#!/bin/bash\n/usr/local/smatch/bin/smatch -p=kernel $@'>/usr/local/smatch/bin/k_sm_check_script
	chmod +x /usr/local/smatch/bin/k_sm_check_script
	cd /tmp
	rm -rf /tmp/"$FILE"
}

download_and_install_armgcc_64()
{
	local FILE URL
	FILE='aarch64-gcc.tar.xz'
	URL="https://developer.arm.com/-/media/Files/downloads/gnu/14.2.rel1/binrel/arm-gnu-toolchain-14.2.rel1-x86_64-aarch64-none-linux-gnu.tar.xz"

	cd /tmp
	mkdir -p /opt/cross-gcc-linux-14/
	aria2c "${ARIA_OPTS[@]}" -o "$FILE" "$URL"
	tar -C /opt/cross-gcc-linux-14/ --strip-components=1 -xf "$FILE"
	rm -f /tmp/"$FILE"
}

download_and_install_armgcc_32()
{
	local FILE URL
	FILE='aarch32-gcc.tar.xz'
	URL="https://developer.arm.com/-/media/Files/downloads/gnu/14.2.rel1/binrel/arm-gnu-toolchain-14.2.rel1-x86_64-arm-none-linux-gnueabihf.tar.xz"

	cd /tmp
	mkdir -p /opt/cross-gcc-linux-14/
	aria2c "${ARIA_OPTS[@]}" -o "$FILE" "$URL"
	tar -C /opt/cross-gcc-linux-14/ --strip-components=1 -xf "$FILE"
	rm -f /tmp/"$FILE"
}

# Clone review-prompts into /usr/local/share so it is available later.
# Actual per-user installation (placing SKILL.md into ~/.claude/...) is done
# later in the Dockerfile after Claude has been installed.
download_and_install_claude()
{
	# Install Claude Code (native installer). See: https://code.claude.com/docs/en/setup
	curl -fsSL https://claude.ai/install.sh | HOME=/config bash -s $CLAUDE_VERSION

	if [ ! -d /usr/local/share/review-prompts ]; then
		echo "Cloning review-prompts to /usr/local/share/review-prompts"
		git clone --depth=1 https://github.com/masoncl/review-prompts.git /usr/local/share/review-prompts || true
		if [ -d /tmp/patches/review-prompts ]; then
			echo "Applying patches from /tmp/patches/review-prompts"
			for patch in /tmp/patches/review-prompts/*.patch; do
				[ -f "$patch" ] || continue
				echo "Applying $patch"
				git -C /usr/local/share/review-prompts apply "$patch"
			done
		fi

	else
		echo "review-prompts already present at /usr/local/share/review-prompts"
	fi
	mkdir -p /config
	HOME=/config /usr/local/share/review-prompts/setup.sh claude kernel
}

# Install Rust and semcode
download_and_install_rust_semcode()
{
	local FILE URL
	FILE='semcode'
	URL="https://github.com/facebookexperimental/semcode"

	clone_and_cd "$SEMCODE_TAG" "$URL" "$FILE"
	export RUSTUP_HOME=/usr/local/rustup
	export CARGO_HOME=/usr/local/cargo
	export PATH="/usr/local/cargo/bin:$PATH"
	curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
	cargo build --release --target-dir=/tmp/$FILE/release
	cp -rvf /tmp/$FILE/release/* /usr/local/bin/
}

download_build_install_git
download_build_install_python_deps
download_build_install_dtc
download_build_install_smatch
download_build_install_sparse
download_and_install_claude
download_and_install_rust_semcode

if [ "$INSTALL_GCC" == "1" ]; then
	download_and_install_armgcc_64
	download_and_install_armgcc_32
else
	echo "Skipping install GCC. INSTALL_GCC!=1. make sure that /opt/cross-gcc-linux-14/bin has aarch64-none-linux-gnu- and arm-none-linux-gnueabihf-"
fi