#!/usr/bin/make -f

# Uncomment this to turn on verbose mode.
#export DH_VERBOSE=1

, = ,
S = $(EMPTY) $(EMPTY)
mk_cslist = $(subst $(S),$(,)$(S),$(foreach v,$(1),$(v)-$(2)))
vafilt = $(subst $(2)=,,$(filter $(2)=%,$(1)))
jrel = $(shell dpkg-parsechangelog | grep -E ^Version: | sed "s/Version: 0.//")

DPKG_VARS := $(shell dpkg-architecture)
DEB_HOST_ARCH ?= $(call vafilt,$(DPKG_VARS),DEB_HOST_ARCH)
DEB_HOST_MULTIARCH ?= $(call vafilt,$(DPKG_VARS),DEB_HOST_MULTIARCH)

p_jre		= gcj-jre
p_jhl		= gcj-jre-headless
p_jdk		= gcj-jdk
jdk_build_dep	=
v_jre		=
v_jdk		= $(v_jre)
provides	= java java2 java5
dversion	= 2:1.5-$(jrel)
jvmdir		= java-gcj

p_doc		= openjdk-7-doc

include debian/java_defaults.mk

ifneq (,$(filter $(DEB_HOST_ARCH),$(java9_architectures)))
  p_jre         = openjdk-9-jre
  p_jhl         = openjdk-9-jre-headless
  p_jdk         = openjdk-9-jdk
  jdk_build_dep = openjdk-8-jdk
  v_jre         = $(S)(>= 9~b74-1)
  v_jdk         = $(v_jre)
  provides      = java java2 java5 java6 java7 java8 java9
  dversion      = 2:1.9-$(jrel)
  jvmdir        = java-1.9.0-openjdk$(if $(DEB_HOST_MULTIARCH),-$(DEB_HOST_ARCH))
  p_doc         = openjdk-9-doc
else ifneq (,$(filter $(DEB_HOST_ARCH),$(java8_architectures)))
  p_jre         = openjdk-8-jre
  p_jhl         = openjdk-8-jre-headless
  p_jdk         = openjdk-8-jdk
  jdk_build_dep = openjdk-7-jdk
  v_jre         = $(S)(>= 8~b132-1)
  v_jdk         = $(v_jre)
  provides      = java java2 java5 java6 java7 java8
  dversion      = 2:1.8-$(jrel)
  jvmdir        = java-1.8.0-openjdk$(if $(DEB_HOST_MULTIARCH),-$(DEB_HOST_ARCH))
  p_doc         = openjdk-8-doc
else ifneq (,$(filter $(DEB_HOST_ARCH),$(java7_architectures)))
  p_jre		= openjdk-7-jre
  p_jhl		= openjdk-7-jre-headless
  p_jdk		= openjdk-7-jdk
  jdk_build_dep	= gcj-jdk
  v_jre		= $(S)(>= 7~u3-2.1.1)
  v_jdk		= $(v_jre)
  provides	= java java2 java5 java6 java7
  dversion	= 2:1.7-$(jrel)
  jvmdir	= java-1.7.0-openjdk$(if $(DEB_HOST_MULTIARCH),-$(DEB_HOST_ARCH))
else ifneq (,$(filter $(DEB_HOST_ARCH),$(java6_architectures)))
  p_jre		= openjdk-6-jre
  p_jhl		= openjdk-6-jre-headless
  p_jdk		= openjdk-6-jdk
  jdk_build_dep	= gcj-jdk
  v_jre		= $(S)(>= 6b23~pre8-2~)
  v_jdk		= $(v_jre)
  provides	= java java2 java5 java6
  dversion	= 2:1.6-$(jrel)
  jvmdir	= java-1.6.0-openjdk$(if $(DEB_HOST_MULTIARCH),-$(DEB_HOST_ARCH))
  p_doc		= openjdk-6-doc
endif

jre_provides	= $(call mk_cslist,$(provides),runtime)
jhl_provides	= $(call mk_cslist,$(provides),runtime-headless)
jdk_provides	= $(call mk_cslist,$(provides),sdk)


%:
	dh $@

override_dh_link:
	dh_link

	# Link /usr/lib/jvm/default-java to the default JRE
	dh_link -pdefault-jre-headless usr/lib/jvm/$(jvmdir) usr/lib/jvm/default-java

	# Link to the JDK documentation
	dh_link -pdefault-jdk-doc /usr/share/doc/$(p_doc)/api usr/share/doc/default-jre-headless/api
	dh_link -pdefault-jdk-doc /usr/share/doc/$(p_doc)/api usr/share/doc/default-jdk-doc/api

override_dh_installdocs:
	dh_installdocs -i

	# Install the changelog and copyright once in default-jre-headless and use links for the other packages
	dh_installdocs -pdefault-jdk-doc
	dh_installdocs -pdefault-jre-headless
	dh_link -pdefault-jre       /usr/share/doc/default-jre-headless /usr/share/doc/default-jre
	dh_link -pdefault-jdk       /usr/share/doc/default-jre          /usr/share/doc/default-jdk
	dh_link -pgcj-native-helper /usr/share/doc/default-jdk          /usr/share/doc/gcj-native-helper

override_dh_gencontrol:
	dh_gencontrol -i
ifneq (,$(p_jre))
	dh_gencontrol -a -- \
		-v$(dversion) \
		'-Vjre=$(p_jre)' \
		'-Vjhl=$(p_jhl)' \
		'-Vjdk=$(p_jdk)' \
		'-Vdoc=$(p_doc)' \
		'-Vjdk:builddep=$(jdk_build_dep)' \
		'-Vjre:arch=$(DEB_HOST_ARCH)' \
		'-Vjre:version=$(v_jre)' \
		'-Vjdk:version=$(v_jdk)' \
		'-Vjre:provides=$(jre_provides)' \
		'-Vjhl:provides=$(jhl_provides)' \
		'-Vjdk:provides=$(jdk_provides)'
endif

override_dh_builddeb:
	dh_builddeb -i
ifneq (,$(p_jre))
	dh_builddeb -a
endif