#!/usr/bin/make -f
# debian/rules for the Debian tigervnc package.

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

export DEB_BUILD_MAINT_OPTIONS = hardening=+all
DPKG_EXPORT_BUILDFLAGS = 1
include /usr/share/dpkg/buildflags.mk

# Where the tigervnc sources are
DEB_SRCDIR   = .
# Don't override DEB_BUILDDIR as /usr/share/cdbs/1/class/cmake.mk does not
# support this
## Where to built tigervnc
#DEB_BUILDDIR = $(CURDIR)/obj-$(DEB_BUILD_GNU_TYPE)

# Normal situation
#VNC_PATCH = $(CURDIR)/unix/xserver117.patch
# However in this case we do not have this file from upstream so we use a
# debian specific copy instead.
#VNC_PATCH = $(CURDIR)/unix/xserver119.patch
VNC_PATCH = $(CURDIR)/unix/xserver120.patch
VNC_LIBTOOL_PATCH = $(CURDIR)/contrib/packages/deb/ubuntu-xenial/debian/xorg-source-patches/debian_libtool.patch

include /usr/share/cdbs/1/rules/debhelper.mk
include /usr/share/cdbs/1/class/cmake.mk
include /usr/share/dpkg/architecture.mk

# Do our complex patch dance first! After that quilt patch system can proceed!
clean:: unpatch
unpatch: reverse-patches-dance
patch: apply-patches-dance

include /usr/share/cdbs/1/rules/patchsys-quilt.mk

DEB_DH_AUTORECONF_ARGS       = $(CURDIR)/debian/xorg-autoreconf.sh
DEB_DH_AUTORECONF_CLEAN_ARGS =

#include /usr/share/cdbs/1/rules/autoreconf.mk we need the deautoreconf in the unpatch sequence

DEB_CONFIGURE_EXTRA_FLAGS +=

DEB_CMAKE_INSTALL_PREFIX  = /usr
DEB_CMAKE_EXTRA_FLAGS     += -DUSE_INCLUDED_ZLIB:BOOL=OFF
DEB_CMAKE_EXTRA_FLAGS     += -DENABLE_LIBWRAP:BOOL=ON
DEB_CMAKE_EXTRA_FLAGS     += -DENABLE_NLS:BOOL=ON
DEB_CMAKE_EXTRA_FLAGS     += -DENABLE_GNUTLS:BOOL=ON
DEB_CMAKE_EXTRA_FLAGS     += -DENABLE_PAM:BOOL=ON
#DEB_CMAKE_EXTRA_FLAGS     += -DBUILD_JAVA=1

CFLAGS   += $(shell dpkg-buildflags --get CFLAGS)
CXXFLAGS += $(shell dpkg-buildflags --get CXXFLAGS)
CPPFLAGS += $(shell dpkg-buildflags --get CPPFLAGS)
LDFLAGS  += $(shell dpkg-buildflags --get LDFLAGS)

# We need that as /usr/share/cdbs/1/class/cmake.mk is buggy and does not use the :STRING qualifier
DEB_CMAKE_EXTRA_FLAGS += -DCMAKE_C_FLAGS:STRING="$(CPPFLAGS) $(CFLAGS) -fPIC"
DEB_CMAKE_EXTRA_FLAGS += -DCMAKE_CXX_FLAGS:STRING="$(CPPFLAGS) $(CXXFLAGS) -fPIC"
DEB_CMAKE_EXTRA_FLAGS += -DCMAKE_EXE_LINKER_FLAGS="$(LDFLAGS)"
DEB_CMAKE_EXTRA_FLAGS += -DCMAKE_SHARED_LINKER_FLAGS="$(LDFLAGS)"
DEB_CMAKE_EXTRA_FLAGS += -DBUILD_TIMESTAMP="$(shell dpkg-parsechangelog -SDate | date -u -f- '+%Y-%m-%d %H:%M')"

# This is stolen from xorg-server/debian/xsfbs/xsfbs.mk
# Determine (source) package name from Debian changelog.
SOURCE_NAME:=$(shell dpkg-parsechangelog -ldebian/changelog \
                        | grep '^Source:' | awk '{print $$2}')

# Determine package version from Debian changelog.
SOURCE_VERSION:=$(shell dpkg-parsechangelog -ldebian/changelog \
                        | grep '^Version:' | awk '{print $$2}')

# Strip a possible epoch marker from source version.
NO_EPOCH_VER:=$(shell echo $(SOURCE_VERSION) | sed 's/^.://')

# Determine upstream version number for make get-orig-source
UPSTREAM_DFSG_VERSION:=$(shell echo $(NO_EPOCH_VER) | sed 's/-.*//')

# Determine upstream version number.
UPSTREAM_VERSION:=$(shell echo $(UPSTREAM_DFSG_VERSION) | cut -d"+" -f1)

# Highly modified and adapted from http://wiki.debian.org/SandroTosi/Svn_get-orig-source
TIGERVNC_PACKAGE = tigervnc
TIGERVNC_VERSION = $(UPSTREAM_VERSION)
TIGERVNC_TARBALL = $(TIGERVNC_PACKAGE)_$(UPSTREAM_DFSG_VERSION).orig.tar.xz

debug-debian-rules:
	@echo '$$(DEB_CONFIGURE_EXTRA_FLAGS) $(DEB_CONFIGURE_EXTRA_FLAGS)'
	@echo '$$(DEB_CMAKE_EXTRA_FLAGS) $(DEB_CMAKE_EXTRA_FLAGS)'
	@echo '$$(SOURCE_NAME) $(SOURCE_NAME)'
	@echo '$$(SOURCE_VERSION) $(SOURCE_VERSION)'
	@echo '$$(NO_EPOCH_VER) $(NO_EPOCH_VER)'
	@echo '$$(UPSTREAM_DFSG_VERSION) $(UPSTREAM_DFSG_VERSION)'
	@echo '$$(UPSTREAM_VERSION) $(UPSTREAM_VERSION)'
	@echo '$$(TIGERVNC_PACKAGE) $(TIGERVNC_PACKAGE)'
	@echo '$$(TIGERVNC_VERSION) $(TIGERVNC_VERSION)'
	@echo '$$(TIGERVNC_TARBALL) $(TIGERVNC_TARBALL)'

.PHONY: apply-patches-dance reverse-patches-dance

apply-patches-dance: apply-patches
apply-patches: apply-patches-vnc-patch-xorg
apply-patches-vnc-patch-xorg: apply-patches-unify-xorg-and-vnc-tree
apply-patches-unify-xorg-and-vnc-tree:

reverse-patches-dance: reverse-patches-remove-xorg-from-vnc-tree
reverse-patches-remove-xorg-from-vnc-tree: reverse-patches-vnc-unpatch-xorg reverse-patches-vnc-unpatch-xorg-libtool
reverse-patches-vnc-unpatch-xorg: reverse-patches-deautoreconf
reverse-patches-deautoreconf: reverse-patches

.PHONY: reverse-patches-deautoreconf

post-patches:: $(DEB_SRCDIR)/unix/xserver/.autoreconf-xorg.stamp

$(DEB_SRCDIR)/unix/xserver/.autoreconf-xorg.stamp:
	dh_autoreconf $(DEB_DH_AUTORECONF_ARGS) && touch $@

reverse-patches-deautoreconf:
	if test -f $(DEB_SRCDIR)/unix/xserver/.autoreconf-xorg.stamp; then \
	  dh_autoreconf_clean $(DEB_DH_AUTORECONF_CLEAN_ARGS) && \
	  rm -f $(DEB_SRCDIR)/unix/xserver/.autoreconf-xorg.stamp \
	  	$(CURDIR)/debian/autoreconf.before \
	  	$(CURDIR)/debian/autoreconf.after; \
	else \
	  rm -f $(CURDIR)/debian/autoreconf.before \
	  	$(CURDIR)/debian/autoreconf.after; \
	fi

.PHONY: apply-patches-vnc-patch-xorg reverse-patches-vnc-unpatch-xorg

apply-patches-vnc-patch-xorg: $(DEB_SRCDIR)/unix/xserver/.apply-patches-vnc-patch-xorg.stamp

$(DEB_SRCDIR)/unix/xserver/.apply-patches-vnc-patch-xorg.stamp: $(VNC_PATCH)
	cd $(DEB_SRCDIR)/unix/xserver && { \
		patch --no-backup-if-mismatch -p1 < $(VNC_PATCH) && \
		touch .apply-patches-vnc-patch-xorg.stamp; \
	}

reverse-patches-vnc-unpatch-xorg: $(VNC_PATCH)
	cd $(DEB_SRCDIR)/unix/xserver && if test -f .apply-patches-vnc-patch-xorg.stamp; then \
		patch --no-backup-if-mismatch -R -p1 < $(VNC_PATCH); \
		rm -f .apply-patches-vnc-patch-xorg.stamp; \
	fi

.PHONY: apply-patches-vnc-patch-xorg-libtool reverse-patches-vnc-unpatch-xorg-libtool

apply-patches-vnc-patch-xorg-libtool: $(DEB_SRCDIR)/unix/xserver/.apply-patches-vnc-patch-xorg-libtool.stamp

$(DEB_SRCDIR)/unix/xserver/.apply-patches-vnc-patch-xorg-libtool.stamp: $(VNC_LIBTOOL_PATCH)
	cd $(DEB_SRCDIR)/unix/xserver && { \
		patch --no-backup-if-mismatch -p1 < $(VNC_LIBTOOL_PATCH) && \
		touch .apply-patches-vnc-patch-xorg-libtool.stamp; \
	}

reverse-patches-vnc-unpatch-xorg-libtool: $(VNC_LIBTOOL_PATCH)
	cd $(DEB_SRCDIR)/unix/xserver && if test -f .apply-patches-vnc-patch-xorg-libtool.stamp; then \
		patch --no-backup-if-mismatch -R -p1 < $(VNC_LIBTOOL_PATCH); \
		rm -f .apply-patches-vnc-patch-xorg-libtool.stamp; \
	fi

.PHONY: apply-patches-unify-xorg-and-vnc-tree reverse-patches-remove-xorg-from-vnc-tree

apply-patches-unify-xorg-and-vnc-tree: $(DEB_SRCDIR)/unix/xserver/.apply-patches-unify-xorg-and-vnc-tree.stamp

$(DEB_SRCDIR)/unix/xserver/.apply-patches-unify-xorg-and-vnc-tree.stamp:
	cd $(DEB_SRCDIR)/unix/xserver && \
	  { tar --strip-components 1 -xvJf /usr/src/xorg-server.tar.xz | \
	      sed -e 's@^[^/]*/@@' > .apply-patches-unify-xorg-and-vnc-tree.files; } && \
	  touch .apply-patches-unify-xorg-and-vnc-tree.stamp

reverse-patches-remove-xorg-from-vnc-tree:
	cd $(DEB_SRCDIR)/unix/xserver && \
		if test -f .apply-patches-unify-xorg-and-vnc-tree.files; then \
			sort -r < .apply-patches-unify-xorg-and-vnc-tree.files | \
				while read line; do \
					if test -d "$$line"; then \
						rmdir "$$line" || true; \
					else \
						rm -f "$$line"; \
					fi; \
				done; \
			rm -f .apply-patches-unify-xorg-and-vnc-tree.stamp \
			      .apply-patches-unify-xorg-and-vnc-tree.files; \
		fi

configure/tigervnc-standalone-server configure/tigervnc-xorg-extension:: $(DEB_BUILDDIR)/unix/xserver/configure.stamp

# Unfortunately quoting in /usr/share/xserver-xorg/configure_flags.mk is fucked
# up in buster and ${xxx} is not escaped correctly.
xserver_confflags := $(shell cat /usr/share/xserver-xorg/configure_flags.mk | \
  sed -ne '/^xserver_confflags\s*=/{s/^[^=]*=//;s/--with-builderstring="[^"]*"//;p}')

#-include /usr/share/xserver-xorg/configure_flags.mk
#xserver_confflags := $(shell echo '$(xserver_confflags)' | sed 's/--with-builderstring="[^"]*"//')

XORG_DEBIAN_CONFIGURE_FLAGS := \
	$(filter-out \
		--prefix=% \
		--mandir=% \
		--infodir=% \
		--sysconfdir=% \
		--localstatedir=% \
		--build=% \
		--host=% \
		--enable-xwayland \
		--enable-dmx \
		--enable-xvfb \
		--enable-xnest \
		--enable-xephyr \
		--enable-xorg \
		--enable-dri \
		--enable-dri2 \
		--enable-dri3 \
		--enable-xmir \
	    , $(xserver_confflags) \
	)

# Don't use libunwind for armel, armhf, and arm64 as this library is buggy
# (bug #923962) on those architectures.
ifneq (,$(filter $(DEB_HOST_ARCH), armel armhf arm64))
	DEB_CONFIGURE_EXTRA_FLAGS += --disable-libunwind
	XORG_DEBIAN_CONFIGURE_FLAGS := \
	    $(filter-out --enable-libunwind, $(XORG_DEBIAN_CONFIGURE_FLAGS))
endif

# Next step is run configure script. It is very difficult use correct parameters.
# You should use same parameters as used in your distribution X server and add
# --disable-xvfb --disable-xnest --disable-xorg
$(DEB_BUILDDIR)/unix/xserver/configure.stamp: $(DEB_SRCDIR)/unix/xserver/.apply-patches-vnc-patch-xorg-libtool.stamp
	mkdir -p $(DEB_BUILDDIR)/unix/xserver
	( cd $(DEB_BUILDDIR)/unix/xserver && \
	  $(DEB_CONFIGURE_SCRIPT_ENV) $(CURDIR)/$(DEB_SRCDIR)/unix/xserver/configure \
		TIGERVNC_BUILDDIR="$(CURDIR)/$(DEB_BUILDDIR)" \
		CPPFLAGS="$(CPPFLAGS)" \
		CFLAGS="$(CFLAGS)" \
		CXXFLAGS="$(CXXFLAGS)" \
		LDFLAGS="$(LDFLAGS) -lpam" \
		--prefix=/usr \
		--mandir=\$${prefix}/share/man \
		--infodir=\$${prefix}/share/info \
		--sysconfdir=/etc \
		--localstatedir=/var \
		$(XORG_DEBIAN_CONFIGURE_FLAGS) \
		$(DEB_CONFIGURE_EXTRA_FLAGS) \
		--disable-selective-werror \
		--with-builderstring="tigervnc-xorg-server $(NO_EPOCH_VER) (TigerVNC Packaging Team <pkg-tigervnc-devel@lists.alioth.debian.org>)" \
		--disable-xwayland \
		--disable-dmx \
		--disable-xvfb \
		--disable-xnest \
		--disable-xephyr \
		--disable-xorg \
		--disable-dri \
		--disable-dri2 \
		--disable-dri3 ) && \
	  touch $@

build/tigervnc-standalone-server build/tigervnc-xorg-extension::
	$(MAKE) TIGERVNC_BUILDDIR="$(CURDIR)/$(DEB_BUILDDIR)" -C $(DEB_BUILDDIR)/unix/xserver

install/tigervnc-common::
	mkdir -p $(DEB_DESTDIR)/usr/share/doc
	mv $(DEB_DESTDIR)/usr/share/doc/tigervnc-* \
	  $(DEB_DESTDIR)/usr/share/doc/tigervnc-common

install/tigervnc-viewer::
	mv $(DEB_DESTDIR)/usr/bin/vncviewer \
	  $(DEB_DESTDIR)/usr/bin/xvncviewer
	mv $(DEB_DESTDIR)/usr/share/man/man1/vncviewer.1 \
	  $(DEB_DESTDIR)/usr/share/man/man1/xvncviewer.1
	mkdir -p $(DEB_DESTDIR)/usr/share/applications
	cp debian/xtigervncviewer.desktop \
	  $(DEB_DESTDIR)/usr/share/applications/
	mkdir -p $(DEB_DESTDIR)/usr/share/icons/hicolor/scalable/apps
	cp media/icons/tigervnc.svg \
	  $(DEB_DESTDIR)/usr/share/icons/hicolor/scalable/apps/
	for i in 16 22 24 32 48; do \
	  mkdir -p $(DEB_DESTDIR)/usr/share/icons/hicolor/$${i}x$${i}/apps; \
	  cp media/icons/tigervnc_$${i}.png \
	    $(DEB_DESTDIR)/usr/share/icons/hicolor/$${i}x$${i}/apps/tigervnc.png; \
	done
	# Hack, replace media/icons/tigervnc_16.png of wrong dimensions 20x20 by our fixed version.
	cp debian/tigervnc_16.png \
	  $(DEB_DESTDIR)/usr/share/icons/hicolor/16x16/apps/tigervnc.png

install/tigervnc-standalone-server install/tigervnc-xorg-extension::
	$(MAKE) TIGERVNC_BUILDDIR="$(CURDIR)/$(DEB_BUILDDIR)" -C $(DEB_BUILDDIR)/unix/xserver/hw/vnc DESTDIR=$(DEB_DESTDIR) install

common-binary-arch:: debian/tmp/common-binary-impl.stamp

common-binary-indep::

debian/tmp/common-binary-impl.stamp:
	cd $(DEB_DESTDIR) && find usr/bin usr/share/man -name "*vnc*" | while read line; do \
	  echo Rename "$$line" `echo "$$line" | sed -e 's/vnc/tigervnc/g'` ; \
	  mv "$$line" `echo "$$line" | sed -e 's/vnc/tigervnc/g'`; \
	done
	cp -pr debian/helpers/* \
	  debian/tmp
	find debian/tmp/usr/share/man -type f | while read line; do \
	  echo "Rewriting and renaming $$line into $$line.gz" ; \
	  sed -e 's/\<vncviewer\>/xtigervncviewer/g' \
	      -e 's/\<vncpasswd\>/tigervncpasswd/g' \
	      -e 's/\<vncconfig\>/tigervncconfig/g' \
	      -e 's/\<vncserver\>/tigervncserver/g' \
	      -e 's/\<x0vncserver\>/x0tigervncserver/g' \
	      -e 's/\<Xvnc\>/Xtigervnc/g' \
	      -e 's/\<Xtigervnc-session\>/Xvnc-session/g' \
	      $$line | \
	    gzip -9 > $$line.gz; \
	  rm -f $$line; \
	done
	touch $@

clean::
	rm -rf $(DEB_BUILDDIR)
	rm -f debian/*.debhelper.log