PACKAGE :=	@PACKAGE_NAME@
VERSION :=	@PACKAGE_VERSION@
RELEASE :=	@PACKAGE_RELEASE@
PACKAGE_BUGREPORT := @PACKAGE_BUGREPORT@

prefix :=	@prefix@
exec_prefix :=	@exec_prefix@
bindir :=	@bindir@
libdir :=	@libdir@
datadir :=	@datadir@
docdir :=	@docdir@
mandir :=	$(datadir)/man
localedir :=	$(datadir)/locale
etcdir :=	$(subst /usr/etc,/etc,$(prefix)/etc)

QUILT_DIR =	$(datadir)/$(PACKAGE)
SCRIPTS_DIR =	$(QUILT_DIR)/scripts
LIB_DIR =	$(libdir)/$(PACKAGE)

INSTALL :=	@INSTALL@
PERL :=		@PERL@
BASH :=		@BASH@
SED :=		@SED@
AWK :=		@AWK@
DIFF :=		@DIFF@
PATCH :=	@PATCH@
MKTEMP :=	@MKTEMP@
MSGFMT :=	@MSGFMT@
DIFFSTAT :=	@DIFFSTAT@
RPMBUILD :=	@RPMBUILD@
MTA :=		@MTA@

ifeq "$(MSGFMT)" ""
MAKE_NLS :=	@true
else
MAKE_NLS :=	$(MAKE)
endif

CFLAGS :=	@CFLAGS@ -Wall

ISODATE :=	$(shell date +%Y-%m-%d)

#-----------------------------------------------------------------------
DIRT +=		$(shell find -name '*~')
DIRT +=		$(shell find -name '.\#*')

SRC +=		COPYING AUTHORS TODO BUGS Makefile.in \
		configure.ac config/install-sh \
		quilt.spec.in quilt.changes \
		bash_completion quilt.quiltrc
DIRT +=		quilt.spec

BIN_IN :=	quilt guards
BIN_SRC :=	$(BIN_IN:%=%.in)
BIN :=		$(BIN_IN)
SRC +=		$(BIN_SRC:%=bin/%)
DIRT +=		$(BIN_IN:%=bin/%)

QUILT_IN :=	add applied delete diff edit files fold fork graph grep \
		import mail new next patches pop previous push refresh remove \
		series setup snapshot top unapplied upgrade

QUILT_SRC :=	$(QUILT_IN:%=%.in)
QUILT :=	$(QUILT_IN)
SRC +=		$(QUILT_SRC:%=quilt/%)
DIRT +=		$(QUILT_IN:%=quilt/%)

SCRIPTS_IN :=	patchfns parse-patch inspect dependency-graph edmail
SCRIPTS_SRC :=	$(SCRIPTS_IN:%=%.in)
SCRIPTS :=	$(SCRIPTS_IN)
SRC +=		$(SCRIPTS_SRC:%=scripts/%)
DIRT +=		$(SCRIPTS_IN:%=scripts/%)

LIB_SRC :=	backup-files.c
LIB :=		backup-files
SRC +=		$(LIB_SRC:%=lib/%)
DIRT +=		lib/backup-files lib/backup-files.o

DOC_IN :=	README 
DOC_SRC :=	$(DOC_IN:%=doc/%.in)
DOC :=		$(DOC_IN)
SRC +=		$(DOC_SRC)
SRC +=          doc/main.tex doc/quilt.pdf doc/Makefile \
		doc/sample.quiltrc doc/quilt.1.in \
		doc/README.MAIL
DIRT +=		$(DOC_IN:%=doc/%) doc/quilt.1

MAN1 :=		bin/guards.1 doc/quilt.1
DIRT +=		$(MAN1)

#DEBIAN :=	changelog control copyright rules 
#
#SRC +=		$(DEBIAN:%=debian/%)

LINGUAS :=	fr de ja
PO :=		Makefile quilt.pot $(LINGUAS:%=%.po)
SRC +=		$(PO:%=po/%)
DIRT +=         po/*.mo

SRC +=		$(wildcard test/*.test) test/run
SRC +=		changes2changelog

#-----------------------------------------------------------------------

all : scripts
	$(MAKE_NLS) -C po all BUILD_ROOT=$(BUILD_ROOT)

scripts : $(BIN:%=bin/%) $(QUILT:%=quilt/%) $(SCRIPTS:%=scripts/%) \
	  $(LIB:%=lib/%) $(DOC:%=doc/%) $(MAN1)

$(QUILT:%=quilt/%) : $(SCRIPTS:%=scripts/%)

dist : clean $(PACKAGE)-$(VERSION).tar.gz

snapshot : $(PACKAGE)-$(ISODATE).tar.bz2

rpm rpmbuild : $(PACKAGE)-$(VERSION).tar.gz
	$(RPMBUILD) -ta $<

doc/README : doc/README.in
	@echo "README.in -> README"
	@while read line; do \
		case "$$line" in \
		'@REFERENCE''@') \
			$(MAKE) -s reference |egrep -v '^make'\
			;; \
		*) \
			echo $$line \
			;; \
		esac ; \
	done 2>&1 < $< > $@
	
doc/quilt.1: doc/quilt.1.in $(QUILT:%=quilt/%)
	@echo "quilt.1.in -> quilt.1"
	@here=`pwd`;                                     \
	 while read line; do                             \
	  case "$$line" in                               \
	    '@REFERENCE''@')                             \
	       for cmd in $(sort $(QUILT:%=quilt/%)) ; do \
		(bash -c ". scripts/patchfns ; LC_ALL=C . $$here/$$cmd -h")| \
		   sed -e 's/Usage: quilt //'            \
	               -e 's/^\([^ ]*\)/\\fB\1\\fP/'     \
		       -e 's/^/.IP "/' -e 's/$$/ " 4/' | \
	           head -n 1;                            \
	         echo ;                                  \
		(bash -c ". scripts/patchfns ; LC_ALL=C . $$here/$$cmd -h")| \
	         grep -v 'Usage: quilt' |                \
	           sed -e $$'s/^\t//'                    \
	               -e $$'s/\t/\\\n/' |               \
	 	   sed -e 's/^\(-.*\)$$/.IP "    \1" 8/';\
	         echo;                                   \
	       done                                      \
	     ;;                                          \
	     *)                                          \
	       echo "$$line"                             \
	     ;;                                          \
	   esac ;                                        \
	done 2>&1 < $< > $@

.PHONY :: reference
reference : $(QUILT:%=quilt/%) scripts/patchfns
	@dir=$(CURDIR); \
	for i in $(filter-out scripts/patchfns,$+); \
	do \
		echo; \
		(bash -c ". scripts/patchfns ; cd $$dir ;LC_ALL=C . $$i -h"); \
		echo; \
	done | \
	sed -e '/^Usage:/{s/^Usage: \?//;b}' -e '/^$$/!s/^/  /'

bin/guards.1 : bin/guards
	mkdir -p $$(dirname $@)
	pod2man $< > $@

$(PACKAGE)-$(VERSION).tar.gz : $(SRC) configure $(PACKAGE).spec
	rm -f $(PACKAGE)-$(VERSION) $@
	ln -s . $(PACKAGE)-$(VERSION)
	tar chf - $(+:%=$(PACKAGE)-$(VERSION)/%) | gzip -9 > $@
	rm -f $(PACKAGE)-$(VERSION)
	@echo "File $@ created."

$(PACKAGE)-$(ISODATE).tar.bz2 : $(SRC) configure $(PACKAGE).spec
	rm -f $(PACKAGE)-$(ISODATE) $@
	ln -s . $(PACKAGE)-$(ISODATE)
	tar chf - $(+:%=$(PACKAGE)-$(ISODATE)/%) | bzip2 -9 > $@
	rm -f $(PACKAGE)-$(ISODATE)
	@echo "File $@ created."

configure : configure.ac
	autoconf

$(PACKAGE).spec : $(PACKAGE).spec.in $(PACKAGE).changes Makefile \
		  scripts/parse-patch
	@echo "Generating spec file"
	@sed -e 's/^\(Version:[ \t]*\).*/\1$(VERSION)/' \
	    -e 's/^\(Release:[ \t]\).*/\1$(RELEASE)/' \
	    < $< > $@
	@./changes2changelog $(PACKAGE).changes \
	| scripts/parse-patch -u changelog $@

% : %.in
	@echo "$< -> $@" >&2
	@sed -e 's:@LIB''@:$(LIB_DIR):g' \
	     -e 's:@QUILT''@:$(QUILT_DIR):g' \
	     -e 's:@SCRIPTS''@:$(SCRIPTS_DIR):g' \
	     -e 's:@PERL''@:$(PERL):g' \
	     -e 's:@BASH''@:$(BASH):g' \
	     -e 's:@SED''@:$(SED):g' \
	     -e 's:@AWK''@:$(AWK):g' \
	     -e 's:@DIFF''@:$(DIFF):g' \
	     -e 's:@PATCH''@:$(PATCH):g' \
	     -e 's:@MKTEMP''@:$(MKTEMP):g' \
	     -e 's:@PACKAGE_BUGREPORT''@:$(PACKAGE_BUGREPORT):g' \
	     -e 's:@VERSION''@:$(VERSION):g' \
	     -e 's:@RELEASE''@:$(RELEASE):g' \
	     -e 's:@RPMBUILD''@:$(RPMBUILD):g' \
	     -e 's:@DIFFSTAT''@:$(DIFFSTAT):g' \
	     -e 's:@MTA''@:$(MTA):g' \
	     -e 's:@LOCALEDIR''@:$(localedir):g' \
	     -e 's:@DOCSUBDIR''@:$(docdir)/$(PACKAGE)-$(VERSION):g' \
	     $< > $@
	@chmod --reference=$< $@

Makefile : Makefile.in
	@echo "Please run ./configure by hand"
	@false

install : scripts
	@INSTALL@ -d $(BUILD_ROOT)$(bindir)
	@INSTALL@ -m 755 $(BIN:%=bin/%) $(BUILD_ROOT)$(bindir)/

	@INSTALL@ -d $(BUILD_ROOT)$(QUILT_DIR)
	@INSTALL@ -m 755 $(QUILT:%=quilt/%) $(BUILD_ROOT)$(QUILT_DIR)/
	
	@INSTALL@ -d $(BUILD_ROOT)$(SCRIPTS_DIR)
	@INSTALL@ -m 755 $(filter-out scripts/patchfns, \
				      $(SCRIPTS:%=scripts/%)) \
		  $(BUILD_ROOT)$(SCRIPTS_DIR)
	@INSTALL@ -m 644 scripts/patchfns $(BUILD_ROOT)$(SCRIPTS_DIR)

	@INSTALL@ -d $(BUILD_ROOT)$(LIB_DIR)
	@INSTALL@ -m 755 -s $(LIB:%=lib/%) $(BUILD_ROOT)$(LIB_DIR)/

	@INSTALL@ -d $(BUILD_ROOT)$(docdir)/$(PACKAGE)-$(VERSION)/
	@INSTALL@ -m 644 doc/README \
		$(BUILD_ROOT)$(docdir)/$(PACKAGE)-$(VERSION)/
	@INSTALL@ -m 644 doc/quilt.pdf doc/README.MAIL \
		$(BUILD_ROOT)$(docdir)/$(PACKAGE)-$(VERSION)/

	@INSTALL@ -d $(BUILD_ROOT)$(mandir)/man1
	@INSTALL@ -m 644 $(MAN1) $(BUILD_ROOT)$(mandir)/man1/
	
	$(MAKE_NLS) -C po install BUILD_ROOT=$(BUILD_ROOT) \
		LINGUAS="$(LINGUAS)" localedir=$(localedir)

	@INSTALL@ -d $(BUILD_ROOT)$(etcdir)
	@INSTALL@ -d $(BUILD_ROOT)$(etcdir)/bash_completion.d
	@INSTALL@ -m 644 bash_completion $(BUILD_ROOT)$(etcdir)/bash_completion.d/quilt
	@INSTALL@ -m 644 quilt.quiltrc $(BUILD_ROOT)$(etcdir)/

clean :
	rm -f $(DIRT)
	rm -f po/*.mo
	
distclean : clean
	rm -f config.log config.status Makefile
	rm -rf autom4te.cache/