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

# ===== You may wish to customize these =====
# Distribution aliases and real codenames
DISTALIASES = stable,testing,unstable
DISTNAMES = sarge,etch,sid
# This is used in pattern-matching/globbing
ALLDISTS = $(DISTALIASES),$(DISTNAMES)

# DIST = default distribution as seen by user
# DDIST = default distribution by codename used by pbuilder
DIST = stable
DDIST = sarge

# Make sure we make clean by excluding -I patterns
DEBBUILDOPTS = -i'CVS|.svn|pkg-.*|build-($(subst ,,|,$(ALLDISTS)))(\.log)?|\.swp$$|~$$' -ICVS -Idebian -I*.swp -I*~ -I.svn* -Ibuild-{$(ALLDISTS)}*
ORIGTAROPTS = --exclude CVS --exclude debian --exclude .svn --exclude pkg-* --exclude build-* --exclude .*.swp --exclude *~ --exclude Makefile.debian

# Repository and mirror setup
# OTHERMIRROR defines which sources to include in chrooted /etc/apt/sources.list
# REPOPATH defines where to copy built results (generally repository's incoming directory)
REPO ?= localhost
OTHERMIRROR ?= http://$(REPO)/debian/
REPOPATH ?= $(REPO):/var/www/debian/mini-dinstall/incoming

REQD = pbuilder sudo devscripts build-essential

BUILDPLACE ?= /tmp/cvs-build
BUILDRESULT ?= $(CURDIR)

FULLNAME ?= $(USER)
EMAIL ?= $(USER)@$(shell hostname)



# ===== DO NOT EDIT THESE =====
BASENAME = $(shell cat $(CURDIR)/debian/control | grep  "^Source" | awk '{print $$NF}')
MAJOR = $(shell grep $(BASENAME) $(CURDIR)/debian/changelog | awk -F'[()]' '{print $$2}' | head -1 | cut -d- -f1)
ORIGTAR = $(CURDIR)/../$(BASENAME)_$(MAJOR).orig.tar.gz


# Some help for poor folks
help:
	@echo "Makefile.debian is intended to be used w/ Debianized sources."
	@echo "As such it expects to find debian/ directory in the same directory from which it was invoked."
	@echo "All required dependencies will be satisfied by both Makefile and contents of debian/control."
	@echo ""
	@echo "Current settings:"
	@echo "  Your Full Name <email>: $(FULLNAME) <$(EMAIL)> [FULLNAME, EMAIL]"
	@echo "  Build directory: $(BUILDPLACE) [BUILDPLACE]"
	@echo "  Results will be placed relative to $(BUILDRESULT) [BUILDRESULT]"
	@echo "  Additional mirrors: $(OTHERMIRROR) [OTHERMIRROR]"
	@echo "  Releases will be uploaded to: $(REPOPATH) [REPOPATH]"
	@echo ""
	@echo "You may additionally define these environment variable prior to running ./Makefile.debian:"
	@echo "  REPO=$(REPO)         - Will swap domainname for both REPOPATH and OTHERMIRROR"
	@echo "  NODEBCHANGES=1       - Will not edit debian/changelog"
	@echo ""
	@echo "Usage: ./Makefile.debian <target>"
	@echo "Targets:"
	@echo "  pkg-test             - Attempts to build source and binary packages"
	@echo "  pkg-stable           - Same goal as pkg-test, but building is done inside stable chroot"
	@echo "  pkg-sarge            - Same as above, but referenced via codename"
	@echo "  pkg-all              - Same as above, but for every distribution defined in Makefile.debian"
	@echo "  pkg-release-stable   - Same as pkg-stable, but also uploads built source and binary files"
	@echo "                         to a repository specified inside the Makefile"
	@echo "  pkg-release-all      - Same as above, but for every distribution defined in Makefile.debian"
	@echo "  pkg-clean            - Cleans up cruft from previous pkg-* runs"
	@echo "  dist-clean           - Cleans up everything"
	@echo ""

# Clean up everything
dist-clean: pkg-clean
	-rm -f pkg-conf pkg-clean pkg-{$(ALLDISTS)}
	-rm -f build-{$(ALLDISTS)}.log
	-rm -f pkg-release-{$(ALLDISTS)}
	-rm -rf $(BUILDRESULT)/build-{$(ALLDISTS)}
	-sudo rm -rf $(BUILDPLACE)
	sudo $(CURDIR)/debian/rules clean
ifneq ($(wildcard $(CURDIR)/$(BASENAME)_*.changes),)
	-tac $(CURDIR)/$(BASENAME)_*.changes | sed -n "/^Files/q;p" | awk '{print $$NF}' | xargs -i rm -f $(CURDIR)/{}
	-rm -f $(CURDIR)/$(BASENAME)_*.{asc,dsc,build,changes}
endif


# Clean up after package builds
pkg-clean:
	-rm -f $(BUILDRESULT)/build-{$(ALLDISTS)}.log
	-rm -f pkg-conf pkg-{$(ALLDISTS)}
	touch pkg-clean


# Prep build env
pkg-conf: pkg-clean
	@echo "===== Attempting to install missing and outdated packages ====="
	sudo apt-get install $(REQD)
	@echo "===== Faking existence of original source ====="
	tar czvf $(ORIGTAR) $(ORIGTAROPTS) .
	@echo "===== Preparing Build Environment ====="
	sudo mkdir -p $(BUILDPLACE)
	sudo pbuilder create --buildplace $(BUILDPLACE) --buildresult $(BUILDRESULT) --distribution $(DDIST) --preserve-buildplace
	touch pkg-conf


# Test package
pkg-test: pkg-clean
	@echo "===== Faking existence of original source ====="
	tar czvf $(ORIGTAR) $(ORIGTAROPTS) .
	@echo "===== Testing if the package builds ====="
	debuild --noconf -rsudo -us -uc $(DEBBUILDOPTS)
	@echo "===== Moving built results to $(BUILDRESULT) ====="
	tac $(CURDIR)/../$(BASENAME)_*.changes | sed -n "/^Files/q;p" | awk '{print $$NF}' | sudo xargs -i mv $(CURDIR)/../{} $(BUILDRESULT)
	-sudo mv $(CURDIR)/../$(BASENAME)_*.{asc,dsc,build,changes} $(BUILDRESULT)
	-sudo chown -R $(USER):$(USER) $(BUILDRESULT)/*$(BASENAME)*_*.{deb,asc,dsc,build,changes}
	touch pkg-test


# Update changelog
pkg-changelog:
ifndef NODEBCHANGES
	cp -a $(CURDIR)/debian/changelog /tmp/$(BASENAME).changelog
	@echo "=============================================================="
	@echo "Please update version string, name and email address, and enter changes made to the package."
	@echo "Or simply remove the topmost stanza."
	@echo "PRESS ENTER" && read
	DEBFULLNAME=$(FULLNAME) EMAIL=$(EMAIL) dch -i
	diff $(CURDIR)/debian/changelog /tmp/$(BASENAME).changelog >& /dev/null || rm -f pkg-{stable,testing,unstable}
endif


# ===== BUILDS =====
# as codenames of distributions change, so should these phone targets like pkg-sarge, pkg-etch etc...
# Build stable
pkg-sarge: DIST = sarge
pkg-sarge: DDIST = sarge
pkg-sarge: pkg-stable

pkg-stable: DIST = stable
pkg-stable: DDIST = sarge
pkg-stable: pkg-conf
	mkdir -p $(BUILDRESULT)/build-$(DIST)
	@echo "===== BUILDING INSIDE STABLE ====="
	test -d $(BUILDPLACE) && \
	sudo pbuilder update --buildplace $(BUILDPLACE) --buildresult $(BUILDRESULT)/build-$(DIST) --othermirror "deb $(OTHERMIRROR) ./$(DIST)/" --distribution $(DDIST) --preserve-buildplace || \
	(mkdir -p $(BUILDPLACE) && \
	sudo pbuilder create --buildplace $(BUILDPLACE) --buildresult $(BUILDRESULT)/build-$(DIST) --othermirror "deb $(OTHERMIRROR) ./$(DIST)/" --distribution $(DDIST) --preserve-buildplace)
	sudo pdebuild --buildsourceroot sudo \
		--pbuilderroot sudo \
		--buildresult $(BUILDRESULT)/build-$(DIST) \
		--debbuildopts "$(DEBBUILDOPTS)" \
		--logfile $(BUILDRESULT)/build-$(DIST).log \
		-- \
		--buildplace $(BUILDPLACE) --othermirror "$(OTHERMIRROR)" --distribution $(DDIST) --preserve-buildplace
	@echo "===== FIXING PERMS ====="
	sudo chown -R $(USER):$(USER) $(BUILDRESULT)/build-$(DIST)
	@echo "===== UPDATING DISTRIBUTION FIELD IN DEBIAN/CHANGELOG ====="
	sed -i "s/^Distribution:.*$$/Distribution: $(DDIST)/" $(BUILDRESULT)/build-$(DIST)/*.changes
	touch pkg-stable


# Build testing
pkg-etch: DIST = etch
pkg-etch: DDIST = etch
pkg-etch: pkg-testing

pkg-testing: DIST = testing
pkg-testing: DDIST = etch
pkg-testing: pkg-conf
	mkdir -p $(BUILDRESULT)/build-$(DIST)
	@echo "===== BUILDING INSIDE TESTING ====="
	test -d $(BUILDPLACE) && \
	sudo pbuilder update --buildplace $(BUILDPLACE) --buildresult $(BUILDRESULT)/build-$(DIST) --othermirror "deb $(OTHERMIRROR) ./testing/" --distribution $(DDIST) --preserve-buildplace || \
	(mkdir -p $(BUILDPLACE) && \
	sudo pbuilder create --buildplace $(BUILDPLACE) --buildresult $(BUILDRESULT)/build-$(DIST) --othermirror "deb $(OTHERMIRROR) ./testing/" --distribution $(DDIST) --preserve-buildplace)
	sudo pdebuild --buildsourceroot sudo \
		--pbuilderroot sudo \
		--buildresult $(BUILDRESULT)/build-$(DIST) \
		--debbuildopts "$(DEBBUILDOPTS)" \
		--logfile $(BUILDRESULT)/build-$(DIST).log \
		-- \
		--buildplace $(BUILDPLACE) --othermirror "$(OTHERMIRROR)" --distribution $(DDIST) --preserve-buildplace
	@echo "===== FIXING PERMS ====="
	sudo chown -R $(USER):$(USER) $(BUILDRESULT)/build-$(DIST)
	@echo "===== UPDATING DISTRIBUTION FIELD IN DEBIAN/CHANGELOG ====="
	sed -i "s/^Distribution:.*$$/Distribution: $(DDIST)/" $(BUILDRESULT)/build-$(DIST)/*.changes
	touch pkg-testing


# Build testing
pkg-sid: DIST = sid
pkg-sid: DDIST = sid
pkg-sid: pkg-unstable

pkg-unstable: DIST = unstable
pkg-unstable: DDIST = sid
pkg-unstable: pkg-conf
	mkdir -p $(BUILDRESULT)/build-$(DIST)
	@echo "===== BUILDING INSIDE UNSTABLE ====="
	test -d $(BUILDPLACE) && \
	sudo pbuilder update --buildplace $(BUILDPLACE) --buildresult $(BUILDRESULT)/build-$(DIST) --othermirror "deb $(OTHERMIRROR) ./$(DIST)/" --distribution $(DDIST) --preserve-buildplace || \
	(mkdir -p $(BUILDPLACE) && \
	sudo pbuilder create --buildplace $(BUILDPLACE) --buildresult $(BUILDRESULT)/build-$(DIST) --othermirror "deb $(OTHERMIRROR) ./$(DIST)/" --distribution $(DDIST) --preserve-buildplace)
	sudo pdebuild --buildsourceroot sudo \
		--pbuilderroot sudo \
		--buildresult $(BUILDRESULT)/build-$(DIST) \
		--debbuildopts "$(DEBBUILDOPTS)" \
		--logfile $(BUILDRESULT)/build-$(DIST).log \
		-- \
		--buildplace $(BUILDPLACE) --othermirror "$(OTHERMIRROR)" --distribution $(DDIST) --preserve-buildplace
	@echo "===== FIXING PERMS ====="
	sudo chown -R $(USER):$(USER) $(BUILDRESULT)/build-$(DIST)
	@echo "===== UPDATING DISTRIBUTION FIELD IN DEBIAN/CHANGELOG ====="
	sed -i "s/^Distribution:.*$$/Distribution: $(DDIST)/" $(BUILDRESULT)/build-$(DIST)/*.changes
	touch pkg-unstable


# Build package
pkg-all: pkg-stable pkg-testing pkg-unstable


# Release packages
pkg-release-all: pkg-release-stable pkg-release-testing pkg-release-unstable

pkg-release-sarge: DIST = sarge
pkg-release-sarge: pkg-release-stable

pkg-release-stable: DIST = stable
pkg-release-stable: pkg-conf pkg-changelog pkg-stable
	# ===== Uploading to $(REPOPATH) =====
	scp $(BUILDRESULT)/build-$(DIST)/* $(REPOPATH)
	touch pkg-release-stable

pkg-release-etch: DIST = etch
pkg-release-etch: pkg-release-testing

pkg-release-testing: DIST = testing
pkg-release-testing: pkg-conf pkg-changelog pkg-testing
	# ===== Uploading to $(REPOPATH) =====
	scp $(BUILDRESULT)/build-$(DIST)/* $(REPOPATH)
	touch pkg-release-testing

pkg-release-sid: DIST = sid
pkg-release-sid: pkg-release-unstable

pkg-release-unstable: DIST = unstable
pkg-release-unstable: pkg-conf pkg-changelog pkg-unstable
	# ===== Uploading to $(REPOPATH) =====
	scp $(BUILDRESULT)/build-$(DIST)/* $(REPOPATH)
	touch pkg-release-unstable

.PHONY: pkg-all, pkg-sarge, pkg-etch, pkg-sid, pkg-release-sarge, pkg-release-etch, pkg-release-sid, pkg-release-all