#!/usr/bin/make -f
# -*- makefile -*-

include /usr/share/dpkg/pkg-info.mk

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

# When using sudo pbuilder, this will cause mk/install.mk to run sudo,
# but we don't need sudo as a build-dep for the package if we unexport
# the SUDO_USER variable.
unexport SUDO_USER

ifneq (,$(filter parallel=%,$(subst $(COMMA), ,$(DEB_BUILD_OPTIONS))))
  NJOBS := -j $(subst parallel=,,$(filter parallel=%,$(subst $(COMMA), ,$(DEB_BUILD_OPTIONS))))
endif

# $DEB_VERSION_UPSTREAM is the full upstream version (eg. 1.0.0~alpha)

# This is original/unmangled upstream version (eg. 1.0.0-alpha)
UPSTREAM_RUST_VERSION := $(subst ~,-,$(DEB_VERSION_UPSTREAM))

# Main (major.minor) upstream version (eg. 1.0)
MAIN_RUST_VERSION := $(shell echo $(DEB_VERSION_UPSTREAM) | egrep -o '^[^\.]+\.[^\.]+')

# Upstream version suffix, if any (eg. alpha)
UPSTREAM_RUST_SUFFIX := $(shell echo $(DEB_VERSION_UPSTREAM) | egrep -o '[^\~]+$$')

# Private dir for rust .so and .rlib
RUST_PREFIX := usr/lib/$(DEB_HOST_MULTIARCH)/rust/$(DEBIAN_RUST_VERSION)

DEB_DESTDIR := $(CURDIR)/debian/tmp
RUST_TMP_PREFIX := $(DEB_DESTDIR)/$(RUST_PREFIX)

# These are the normal build flags
COMMON_FLAGS = \
               --disable-manage-submodules \
               --mandir=/usr/share/man \
               --enable-rpath \
               --prefix=/$(RUST_PREFIX)

# TODO
# These flags will be used to avoid external
# stage0 bootstrap binaries
SELF_BOOTSTRAP = \
		 --enable-local-rust \
		 --local-rust-root=/usr

# TODO
# These flags will enable the system-wide LLVM
SYSTEM_LLVM = --llvm-root=/usr

%:
	dh $@ --parallel

# Note: SHELL is not set by dash, but the configure script wants to use it
override_dh_auto_configure:
	SHELL=/bin/sh \
	    ./configure \
		    $(COMMON_FLAGS) \
		    # TODO
		    # $(SELF_BOOTSTRAP) 
		    # $(SYSTEM_LLVM)

override_dh_auto_build:
	make $(NJOBS) VERBOSE=1

LD_TMP1 := $(RUST_TMP_PREFIX)/lib
# TODO improve this stuff to make it dynamic
LD_TMP_i386 := $(LD_TMP1)/rustlib/i686-unknown-linux-gnu/lib
LD_TMP_AMD64 := $(LD_TMP1)/rustlib/x86_64-unknown-linux-gnu/lib
RUST_TMP_LD_PATH := $(LD_TMP1):$(LD_TMP_i386):$(LD_TMP_AMD64)

override_dh_shlibdeps:
	LD_LIBRARY_PATH=$(RUST_TMP_LD_PATH):$(LD_LIBRARY_PATH) \
		dh_shlibdeps -l$(RUST_TMP_LD_PATH)

override_dh_auto_install:
	dh_auto_install
	dh_link $(RUST_PREFIX)/bin/rustc usr/bin/rustc-$(DEBIAN_RUST_VERSION)
	dh_link usr/bin/rustc-$(DEBIAN_RUST_VERSION) usr/bin/rustc
	dh_link $(RUST_PREFIX)/bin/rustdoc usr/bin/rustdoc-$(DEBIAN_RUST_VERSION)
	dh_link usr/bin/rustdoc-$(DEBIAN_RUST_VERSION) usr/bin/rustdoc
	dh_link $(RUST_PREFIX)/bin/rust-gdb usr/bin/rust-gdb-$(DEBIAN_RUST_VERSION)
	dh_link usr/bin/rust-gdb-$(DEBIAN_RUST_VERSION) usr/bin/rust-gdb

override_dh_install:
	# Brute force to remove privacy-breach-logo lintian warning.
	# We could have updated the upstream sources but it would complexify
	# the rebase
	sed -i '/rel="shortcut icon" href="http:\/\/www.rust-lang.org\/favicon.ico"/d' `find $(DEB_DESTDIR) -iname '*.html'`
	# Remove the empty doc files
	rm -f `find $(DEB_DESTDIR) -iname '*.html' -empty` $(DEB_DESTDIR)/usr/share/doc/rust/html/.lock
	dh_install