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airgap/Makefile

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2020-06-15 18:04:50 +00:00
NAME := airgap
IMAGE := local/$(NAME):latest
ARCH := x86_64
TARGET := $(ARCH)
DEVICES := librem_13v4 librem_15v4
USER := $(shell id -u):$(shell id -g)
CPUS := $(shell docker run -it debian nproc)
GIT_REF := $(shell git log -1 --format=%H config)
GIT_AUTHOR := $(shell git log -1 --format=%an config)
GIT_KEY := $(shell git log -1 --format=%GP config)
GIT_EPOCH := $(shell git log -1 --format=%at config)
GIT_DATETIME := \
$(shell git log -1 --format=%cd --date=format:'%Y-%m-%d %H:%M:%S' config)
ifeq ($(strip $(shell git status --porcelain 2>/dev/null)),)
GIT_STATE=clean
else
GIT_STATE=dirty
endif
VERSION := $(shell TZ=UTC0 git show --quiet --date='format-local:%Y%m%dT%H%M%SZ' --format="%cd")
RELEASE_DIR := release/$(VERSION)
CONFIG_DIR := config
BR2_EXTERNAL := $(CONFIG_DIR)/buildroot
HEADS_EXTERNAL := $(CONFIG_DIR)/heads
CACHE_DIR := build
SRC_DIR := src
OUT_DIR := out
docker = docker
executables = $(docker) git patch
include $(PWD)/config/config.env
## Use env vars from existing release if present
ifneq (,$(wildcard $(RELEASE_DIR)/release.env))
include $(RELEASE_DIR)/release.env
export
endif
.DEFAULT_GOAL := out/manifest.txt
## Primary Targets
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.PHONY: fetch
fetch: $(CACHE_DIR)/toolchain.tar
mkdir -p build release
$(call toolchain,$(USER),"fetch")
.PHONY: clean
clean: $(CACHE_DIR)/toolchain.tar
$(call toolchain,$(USER),"clean")
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.PHONY: mrproper
mrproper:
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docker image rm -f $(IMAGE)
rm -rf $(CACHE_DIR)
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.PHONY: build-fw
build-fw: $(CACHE_DIR)/toolchain.tar
$(call toolchain,$(USER),"build-fw")
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mkdir -p $(RELEASE_DIR)
for device in $(DEVICES); do \
cp \
$(CACHE_DIR)/heads/build/$${device}/pureboot*.rom \
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$(RELEASE_DIR)/$${device}.rom ; \
done
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## Release Targets
.PHONY: release
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release: | out/release.env out/airgap.iso out/manifest.txt
mkdir -p $(RELEASE_DIR)
cp out/release.env release/$(RELEASE_DIR)/release.env
cp out/airgap.iso release/$(RELEASE_DIR)/airgap.iso
cp out/manifest.txt release/$(RELEASE_DIR)/manifest.txt
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.PHONY: attest
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attest:
$(MAKE) mrproper out/manifest.txt
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diff -q out/manifest.txt release/$(VERSION)/manifest.txt;
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.PHONY: sign
sign: $(RELEASE_DIR)/manifest.txt
set -e; \
git config --get user.signingkey 2>&1 >/dev/null || { \
echo "Error: git user.signingkey is not defined"; \
exit 1; \
}; \
fingerprint=$$(\
git config --get user.signingkey \
| sed 's/.*\([A-Z0-9]\{16\}\).*/\1/g' \
); \
gpg --armor \
--detach-sig \
--output $(RELEASE_DIR)/manifest.$${fingerprint}.asc \
$(RELEASE_DIR)/manifest.txt
.PHONY: verify
verify: $(RELEASE_DIR)/manifest.txt
set -e; \
for file in $(RELEASE_DIR)/manifest.*.asc; do \
echo "\nVerifying: $${file}\n"; \
gpg --verify $${file} $(RELEASE_DIR)/manifest.txt; \
done;
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.PHONY: audit
audit: $(CACHE_DIR)/toolchain.tar
mkdir -p $(CACHE_DIR)/audit
$(call toolchain,$(USER),"audit")
$(RELEASE_DIR):
mkdir -p $(RELEASE_DIR)
$(RELEASE_DIR)/release.env: \
$(RELEASE_DIR) \
$(OUT_DIR)/release.env
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cp $(OUT_DIR)/release.env $(RELEASE_DIR)/release.env
$(RELEASE_DIR)/airgap.iso: \
$(RELEASE_DIR) \
$(OUT_DIR)/airgap.iso
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cp $(OUT_DIR)/airgap.iso $(RELEASE_DIR)/airgap.iso
$(RELEASE_DIR)/manifest.txt: \
$(RELEASE_DIR) \
$(OUT_DIR)/manifest.txt
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cp $(OUT_DIR)/manifest.txt $(RELEASE_DIR)/manifest.txt
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## Development Targets
.PHONY: menuconfig
menuconfig: $(CACHE_DIR)/toolchain.tar
$(call toolchain,$(USER),"menuconfig")
cp $(CACHE_DIR)/buildroot/.config \
"config/buildroot/configs/airgap_$(TARGET)_defconfig"
.PHONY: linux-menuconfig
linux-menuconfig: $(CACHE_DIR)/toolchain.tar
$(call toolchain,$(USER),"linux-menuconfig")
.PHONY: vm
vm: $(CACHE_DIR)/toolchain.tar
$(call toolchain,$(USER),"vm")
# Launch a shell inside the toolchain container
.PHONY: toolchain-shell
toolchain-shell: $(CACHE_DIR)/toolchain.tar
$(call toolchain,$(USER),"bash --norc")
# Pin all packages in toolchain container to latest versions
.PHONY: toolchain-update
toolchain-update:
docker run \
--rm \
--env LOCAL_USER=$(USER) \
--platform=linux/$(ARCH) \
--volume $(PWD)/$(CONFIG_DIR):/config \
--volume $(PWD)/$(SRC_DIR)/toolchain/scripts:/usr/local/bin \
--env ARCH=$(ARCH) \
--interactive \
--tty \
debian@sha256:$(DEBIAN_HASH) \
bash -c /usr/local/bin/packages-update
## Real targets
$(CACHE_DIR)/toolchain.tar:
mkdir -p $(CACHE_DIR)
DOCKER_BUILDKIT=1 \
docker build \
--tag $(IMAGE) \
--build-arg DEBIAN_HASH=$(DEBIAN_HASH) \
--build-arg CONFIG_DIR=$(CONFIG_DIR) \
--build-arg SCRIPTS_DIR=$(SRC_DIR)/toolchain/scripts \
--platform=linux/$(ARCH) \
-f $(SRC_DIR)/toolchain/Dockerfile \
.
docker save "$(IMAGE)" -o "$@"
$(CACHE_DIR)/buildroot: $(CACHE_DIR)/toolchain.tar
$(call git_clone,buildroot,$(BUILDROOT_REPO),$(BUILDROOT_REF))
$(CACHE_DIR)/heads: $(CACHE_DIR)/toolchain.tar
$(call git_clone,heads,$(HEADS_REPO),$(HEADS_REF))
$(OUT_DIR):
mkdir -p $(OUT_DIR)
$(OUT_DIR)/release.env: $(OUT_DIR)
echo 'VERSION=$(VERSION)' > $(OUT_DIR)/release.env
echo 'GIT_REF=$(GIT_REF)' >> $(OUT_DIR)/release.env
echo 'GIT_AUTHOR=$(GIT_AUTHOR)' >> $(OUT_DIR)/release.env
echo 'GIT_KEY=$(GIT_KEY)' >> $(OUT_DIR)/release.env
echo 'GIT_DATETIME=$(GIT_DATETIME)' >> $(OUT_DIR)/release.env
$(OUT_DIR)/airgap.iso: \
$(CACHE_DIR)/buildroot \
$(OUT_DIR)/release.env
$(call apply_patches,buildroot,$(BR2_EXTERNAL)/patches)
$(call toolchain,$(USER)," \
cd buildroot; \
make "airgap_$(TARGET)_defconfig"; \
unset FAKETIME; \
make source; \
make; \
")
mkdir -p $(OUT_DIR)
cp $(CACHE_DIR)/buildroot/output/images/rootfs.iso9660 \
$(OUT_DIR)/airgap.iso
$(OUT_DIR)/manifest.txt: \
$(OUT_DIR)/airgap.iso \
$(OUT_DIR)/release.env
cd $(OUT_DIR); \
openssl sha256 -r release.env > manifest.txt; \
openssl sha256 -r airgap.iso >> manifest.txt;
## Make Helpers
check_executables := $(foreach exec,$(executables),\$(if \
$(shell which $(exec)),some string,$(error "No $(exec) in PATH")))
define git_clone
[ -d $(CACHE_DIR)/$(1) ] || git clone $(2) $(CACHE_DIR)/$(1)
git -C $(CACHE_DIR)/$(1) checkout $(3)
git -C $(CACHE_DIR)/$(1) rev-parse --verify HEAD | grep -q $(3) || { \
echo 'Error: Git ref/branch collision.'; exit 1; \
};
endef
define apply_patches
[ -d $(2) ] && $(call toolchain,$(USER)," \
cd $(1); \
git restore .; \
find /$(2) -type f -iname '*.patch' -print0 \
| xargs -t -0 -n 1 patch -p1 --no-backup-if-mismatch -i ; \
")
endef
define toolchain
docker load -i $(CACHE_DIR)/toolchain.tar
docker run \
--rm \
--tty \
--interactive \
--user=$(1) \
--platform=linux/$(ARCH) \
--volume $(PWD)/config:/config \
--volume $(PWD)/$(KEY_DIR):/keys \
--volume $(PWD)/$(SRC_DIR):/src \
--volume $(PWD)/$(CACHE_DIR):/home/build \
--volume $(PWD)/scripts:/usr/local/bin \
--cpus $(CPUS) \
--workdir /home/build \
--env HOME=/home/build \
--env PS1="$(NAME)-toolchain" \
--env GNUPGHOME=/cache/.gnupg \
--env ARCH=$(ARCH) \
--env TARGET="$(ARCH)" \
--env GIT_REF="$(GIT_REF)" \
--env GIT_AUTHOR="$(GIT_AUTHOR)" \
--env GIT_KEY="$(GIT_KEY)" \
--env GIT_DATETIME="$(GIT_DATETIME)" \
--env GIT_EPOCH="$(GIT_EPOCH)" \
--env KBUILD_BUILD_USER=$(KBUILD_BUILD_USER) \
--env KBUILD_BUILD_HOST=$(KBUILD_BUILD_HOST) \
--env KBUILD_BUILD_VERSION=$(KBUILD_BUILD_VERSION) \
--env KBUILD_BUILD_TIMESTAMP=$(KBUILD_BUILD_TIMESTAMP) \
--env KCONFIG_NOTIMESTAMP=$(KCONFIG_NOTIMESTAMP) \
--env SOURCE_DATE_EPOCH=$(SOURCE_DATE_EPOCH) \
--env FAKETIME_FMT=$(FAKETIME_FMT) \
--env FAKETIME=$(FAKETIME) \
--env BR2_EXTERNAL="/$(BR2_EXTERNAL)" \
--env HEADS_EXTERNAL="/$(HEADS_EXTERNAL)" \
--env DEVICES="$(DEVICES)" \
--env UID="$(shell id -u)" \
--env GID="$(shell id -g)" \
$(IMAGE) \
bash -c $(2)
endef