include $(TOPDIR)/rules.mk

PKG_NAME:=dockerd
PKG_VERSION:=29.4.1
PKG_RELEASE:=1
PKG_LICENSE:=Apache-2.0
PKG_LICENSE_FILES:=LICENSE
PKG_CPE_ID:=cpe:/a:mobyproject:moby

PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
PKG_GIT_URL:=github.com/moby/moby
PKG_GIT_REF:=docker-v$(PKG_VERSION)
PKG_SOURCE_URL:=https://codeload.$(PKG_GIT_URL)/tar.gz/$(PKG_GIT_REF)?
PKG_HASH:=89ef4a0f681ae2c9f7449591243e1e932d86e6086ac3392a47da80c10b1a3d58
PKG_GIT_SHORT_COMMIT:=6c91b92 # SHA1 used within the docker executables

PKG_MAINTAINER:=Gerard Ryan <G.M0N3Y.2503@gmail.com>

PKG_BUILD_DEPENDS:=golang/host
PKG_BUILD_PARALLEL:=1

GO_PKG:=github.com/docker/docker

include $(INCLUDE_DIR)/package.mk
include ../../lang/golang/golang-package.mk

EMPTY:=
SPACE:= $(EMPTY) $(EMPTY)
ARCH_DEPENDS:=@($(subst $(SPACE),||,$(strip $(filter-out mips mips64 mipsel mips64el,$(subst ||,$(SPACE),$(patsubst @(%),%,$(GO_ARCH_DEPENDS)))))))

define Package/dockerd/config
  source "$(SOURCE)/Config.in"
endef

define Package/dockerd
  SECTION:=utils
  CATEGORY:=Utilities
  TITLE:=Docker Community Edition Daemon
  URL:=https://www.docker.com/
  DEPENDS:=$(ARCH_DEPENDS) \
    +ca-certificates \
    +containerd \
    +iptables \
    +iptables-mod-extra \
    +IPV6:ip6tables \
    +IPV6:kmod-ipt-nat6 \
    +KERNEL_SECCOMP:libseccomp \
    +kmod-ipt-nat \
    +kmod-ipt-physdev \
    +kmod-nf-ipvs \
    +kmod-veth \
    +tini \
    +uci-firewall
  USERID:=docker:docker
  MENU:=1
endef

define Package/dockerd/conffiles
/etc/config/dockerd
endef

define Package/dockerd/description
  The Docker CE Engine.
endef

TAR_OPTIONS:=--strip-components 1 $(TAR_OPTIONS)
TAR_CMD=$(HOST_TAR) -C $(1) $(TAR_OPTIONS)
TARGET_LDFLAGS += $(if $(CONFIG_USE_GLIBC),-lc -lgcc_eh)

# $(1) = OpenWrt dependent PKG_NAME
define EnsureVendoredVersion
	DEP_VER=$$$$( grep --only-matching --perl-regexp '(?<=PKG_VERSION:=)(.*)' "../$(1)/Makefile" ); \
	VEN_VER=$$$$( grep --only-matching --perl-regexp '(?<=$(call toupper,$(1))_VERSION=v)(.*)' "$(PKG_BUILD_DIR)/Dockerfile" ); \
	if [ "$$$${VEN_VER}" != "$$$${DEP_VER}" ]; then \
		echo "ERROR: $(PKG_NAME) Expected 'PKG_VERSION:=$$$${VEN_VER}' in '$(1)', found 'PKG_VERSION:=$$$${DEP_VER}'"; \
		exit 1; \
	fi
endef

define Build/Prepare
	$(Build/Prepare/Default)

	# Verify dependencies are the vendored version
	$(call EnsureVendoredVersion,containerd)
	$(call EnsureVendoredVersion,runc)
	$(call EnsureVendoredVersion,tini)

	# Verify CLI is the same version
	CLI_MAKEFILE="../docker/Makefile"; \
	CLI_VERSION=$$$$( grep --only-matching --perl-regexp '(?<=PKG_VERSION:=)(.*)' "$$$${CLI_MAKEFILE}" ); \
	if [ "$$$${CLI_VERSION}" != "$(PKG_VERSION)" ]; then \
		echo "ERROR: Expected 'PKG_VERSION:=$(PKG_VERSION)' in '$$$${CLI_MAKEFILE}', found 'PKG_VERSION:=$$$${CLI_VERSION}'"; \
		exit 1; \
	fi

	# Verify PKG_GIT_SHORT_COMMIT
	EXPECTED_PKG_GIT_SHORT_COMMIT=$$$$( $(CURDIR)/git-short-commit.sh '$(PKG_GIT_URL)' '$(PKG_GIT_REF)' '$(TMP_DIR)/git-short-commit/$(PKG_NAME)-$(PKG_VERSION)' ); \
	if [ "$$$${EXPECTED_PKG_GIT_SHORT_COMMIT}" != "$(strip $(PKG_GIT_SHORT_COMMIT))" ]; then \
		echo "ERROR: Expected 'PKG_GIT_SHORT_COMMIT:=$$$${EXPECTED_PKG_GIT_SHORT_COMMIT}', found 'PKG_GIT_SHORT_COMMIT:=$(strip $(PKG_GIT_SHORT_COMMIT))'"; \
		exit 1; \
	fi
endef

BUILDTAGS:=
ifeq ($(KERNEL_SECCOMP),y)
BUILDTAGS += seccomp
endif
ifeq ($(CONFIG_SELINUX),y)
BUILDTAGS += selinux
endif

define Build/Compile
	cd $(PKG_BUILD_DIR); \
	$(GO_PKG_VARS) \
	DOCKER_GITCOMMIT=$(PKG_GIT_SHORT_COMMIT) \
	DOCKER_BUILDTAGS='$(BUILDTAGS)' \
	VERSION=$(PKG_VERSION) \
	./hack/make.sh binary
endef

define Package/dockerd/install
	$(INSTALL_DIR) $(1)/usr/bin/
	$(INSTALL_BIN) $(PKG_BUILD_DIR)/bundles/binary-daemon/dockerd $(1)/usr/bin/
	$(INSTALL_BIN) $(PKG_BUILD_DIR)/bundles/binary-daemon/docker-proxy $(1)/usr/bin/

	$(INSTALL_DIR) $(1)/opt/docker/

  ifeq ($(CONFIG_DOCKER_CHECK_CONFIG),y)
	$(INSTALL_DIR) $(1)/usr/share/docker/
	$(INSTALL_BIN) $(PKG_BUILD_DIR)/contrib/check-config.sh $(1)/usr/share/docker/
  endif

	$(INSTALL_DIR) $(1)/etc/init.d
	$(INSTALL_BIN) ./files/dockerd.init $(1)/etc/init.d/dockerd

	$(INSTALL_DIR) $(1)/etc/config
	$(INSTALL_CONF) ./files/etc/config/dockerd $(1)/etc/config/dockerd

	# Must be after systcl 11-br-netfilter.conf from kmod-br-netfilter
	$(INSTALL_DIR) $(1)/etc/sysctl.d
	$(INSTALL_DATA) ./files/etc/sysctl.d/sysctl-br-netfilter-ip.conf \
		$(1)/etc/sysctl.d/12-br-netfilter-ip.conf
endef

define Package/dockerd/postinst
#!/bin/sh
[ -n "$$IPKG_INSTROOT" ] || {
	/etc/init.d/dockerd enable
	/etc/init.d/dockerd uciadd
	/etc/init.d/dockerd start
}
endef

define Package/dockerd/prerm
#!/bin/sh
[ -n "$$IPKG_INSTROOT" ] || {
	/etc/init.d/dockerd disable
	/etc/init.d/dockerd stop
	/etc/init.d/dockerd ucidel
}
endef

$(eval $(call BuildPackage,dockerd))