################################################################################
#
# docker-engine
#
################################################################################

DOCKER_ENGINE_VERSION = v18.03.1-ce
DOCKER_ENGINE_SITE = $(call github,docker,docker-ce,$(DOCKER_ENGINE_VERSION))

DOCKER_ENGINE_LICENSE = Apache-2.0
DOCKER_ENGINE_LICENSE_FILES = LICENSE

DOCKER_ENGINE_DEPENDENCIES = host-go host-pkgconf

DOCKER_ENGINE_LDFLAGS = \
	-X main.GitCommit=$(DOCKER_ENGINE_VERSION) \
	-X main.Version=$(DOCKER_ENGINE_VERSION) \
	-X github.com/docker/cli/cli.GitCommit=$(DOCKER_ENGINE_VERSION) \
	-X github.com/docker/cli/cli.Version=$(DOCKER_ENGINE_VERSION)

ifeq ($(BR2_PACKAGE_DOCKER_ENGINE_STATIC_CLIENT),y)
DOCKER_ENGINE_LDFLAGS += -extldflags '-static'
endif

DOCKER_ENGINE_TAGS = cgo exclude_graphdriver_zfs autogen apparmor
DOCKER_ENGINE_BUILD_TARGETS = docker

ifeq ($(BR2_PACKAGE_LIBSECCOMP),y)
DOCKER_ENGINE_TAGS += seccomp
DOCKER_ENGINE_DEPENDENCIES += libseccomp
endif

ifeq ($(BR2_INIT_SYSTEMD),y)
DOCKER_ENGINE_TAGS += journald
DOCKER_ENGINE_DEPENDENCIES += systemd
endif

ifeq ($(BR2_PACKAGE_DOCKER_ENGINE_DAEMON),y)
DOCKER_ENGINE_TAGS += daemon
DOCKER_ENGINE_BUILD_TARGETS += dockerd
endif

ifeq ($(BR2_PACKAGE_DOCKER_ENGINE_EXPERIMENTAL),y)
DOCKER_ENGINE_TAGS += experimental
endif

ifeq ($(BR2_PACKAGE_DOCKER_ENGINE_DRIVER_BTRFS),y)
DOCKER_ENGINE_DEPENDENCIES += btrfs-progs
else
DOCKER_ENGINE_TAGS += exclude_graphdriver_btrfs
endif

ifeq ($(BR2_PACKAGE_DOCKER_ENGINE_DRIVER_DEVICEMAPPER),y)
DOCKER_ENGINE_DEPENDENCIES += lvm2
else
DOCKER_ENGINE_TAGS += exclude_graphdriver_devicemapper
endif

ifeq ($(BR2_PACKAGE_DOCKER_ENGINE_DRIVER_VFS),y)
DOCKER_ENGINE_DEPENDENCIES += gvfs
else
DOCKER_ENGINE_TAGS += exclude_graphdriver_vfs
endif

define DOCKER_ENGINE_RUN_AUTOGEN
	ln -fs $(@D)/components/engine $(@D)/_gopath/src/github.com/docker/docker
	ln -fs $(@D)/components/cli $(@D)/_gopath/src/github.com/docker/cli
	cd $(@D)/components/engine && \
		BUILDTIME="$$(date)" \
		IAMSTATIC="true" \
		VERSION="$(patsubst v%,%,$(DOCKER_ENGINE_VERSION))" \
		PKG_CONFIG="$(PKG_CONFIG_HOST_BINARY)" $(TARGET_MAKE_ENV) \
		bash ./hack/make/.go-autogen
endef

DOCKER_ENGINE_POST_CONFIGURE_HOOKS += DOCKER_ENGINE_RUN_AUTOGEN
DOCKER_ENGINE_INSTALL_BINS = $(notdir $(DOCKER_ENGINE_BUILD_TARGETS))

ifeq ($(BR2_PACKAGE_DOCKER_ENGINE_DAEMON),y)

define DOCKER_ENGINE_INSTALL_INIT_SYSTEMD
	$(INSTALL) -D -m 0644 $(@D)/components/engine/contrib/init/systemd/docker.service \
		$(TARGET_DIR)/usr/lib/systemd/system/docker.service
	$(INSTALL) -D -m 0644 $(@D)/components/engine/contrib/init/systemd/docker.socket \
		$(TARGET_DIR)/usr/lib/systemd/system/docker.socket
	mkdir -p $(TARGET_DIR)/etc/systemd/system/multi-user.target.wants/
	ln -fs ../../../../usr/lib/systemd/system/docker.service \
		$(TARGET_DIR)/etc/systemd/system/multi-user.target.wants/docker.service
endef

define DOCKER_ENGINE_USERS
	- - docker -1 * - - - Docker Application Container Framework
endef

endif

define DOCKER_ENGINE_BUILD_CMDS
	$(foreach target,$(DOCKER_ENGINE_BUILD_TARGETS), \
		cd $(@D)/$(DOCKER_ENGINE_WORKSPACE)/src/github.com/docker/$(if $(filter $(target),dockerd),docker,cli); \
		$(GO_TARGET_ENV) \
		GOPATH="$(@D)/$(DOCKER_ENGINE_WORKSPACE)" \
		$(DOCKER_ENGINE_GO_ENV) \
		$(GO_BIN) build -v $(DOCKER_ENGINE_BUILD_OPTS) \
			-o $(@D)/bin/$(target) \
			./cmd/$(target)
	)
endef

define DOCKER_ENGINE_INSTALL_SYMLINKS
        ln -fs tini $(TARGET_DIR)/usr/bin/docker-init
endef

DOCKER_ENGINE_POST_INSTALL_TARGET_HOOKS += DOCKER_ENGINE_INSTALL_SYMLINKS

$(eval $(golang-package))