# Makefile for authoring less.

EMAIL = bug-less@gnu.org
HOMEPAGE = https://greenwoodsoftware.com/less
SHELL = /bin/sh
GIT = git
NROFF = nroff -t -man

srcdir = .
REL := $(shell sed -e '/char version/!d' -e 's/[^0-9.]*\([0-9.]*\).*/\1/' -e q ${srcdir}/version.c)

ifeq ($(USE_PYTHON),1)
	MKHELP = mkhelp.py
else
	MKHELP = mkhelp.pl
endif

SRC = \
	main.c screen.c brac.c ch.c charset.c cmdbuf.c \
	command.c cvt.c decode.c edit.c filename.c forwback.c \
	help.c ifile.c input.c jump.c line.c linenum.c \
	lsystem.c mark.c optfunc.c option.c opttbl.c os.c \
	output.c pattern.c position.c prompt.c search.c signal.c \
	tags.c ttyin.c version.c xbuf.c
DISTFILES_W = \
	defines.ds  Makefile.dsb Makefile.dsg Makefile.dsu \
	defines.o2  Makefile.o2e \
	defines.o9  Makefile.o9c Makefile.o9u \
	defines.wn  Makefile.wnm Makefile.wnb Makefile.wng \
	configure 
UNICODE_FILES = \
	compose.uni fmt.uni ubin.uni wide.uni
DISTFILES = \
	${SRC} regexp.c regexp.h \
	COPYING INSTALL LICENSE Makefile.in Makefile.aut NEWS README \
	configure.ac lesskey.c lesskey_parse.c lessecho.c scrsize.c \
	charset.h cmd.h funcs.h lglob.h less.h lesskey.h option.h \
	pckeys.h pattern.h position.h xbuf.h \
	install.sh defines.h.in mkinstalldirs \
	less.nro less.man lesskey.nro lesskey.man lessecho.nro lessecho.man \
	less.hlp \
	mkhelp.pl \
	mkhelp.py \
	mkutable $(UNICODE_FILES) \
	$(shell ${MAKE} -s -f ${srcdir}/lesstest/Makefile echo_distfiles srcdir=${srcdir}/lesstest) \
	${DISTFILES_W}


all: help.c funcs.h $(UNICODE_FILES) ${srcdir}/configure 

release: .FORCE
	@if ${srcdir}/ready_to_release -d ${srcdir}; then :; else exit 1; fi
	${MAKE} -f Makefile.aut tagall 
	${MAKE} -f Makefile.aut all 
	${MAKE} -f Makefile.aut clean 
	${MAKE} -f Makefile.aut dist

.FORCE:

help.c: less.hlp 
	-mv -f ${srcdir}/help.c ${srcdir}/help.c.old
	rm -rf help.c
	${srcdir}/${MKHELP} < less.hlp > help.c
	if cmp -s help.c help.c.old; then mv -f help.c.old help.c; fi

${srcdir}/configure ${srcdir}/defines.h.in: ${srcdir}/configure.ac ${srcdir}/Makefile.in
	cd ${srcdir}; autoheader; autoconf

funcs.h: ${SRC:%=${srcdir}/%}
	-mv -f ${srcdir}/funcs.h ${srcdir}/funcs.h.old
	grep -h '^public [^;]*$$' ${SRC:%=${srcdir}/%} | sed 's/$$/;/' >${srcdir}/funcs.h

lint:
	lint -I. ${CPPFLAGS} ${SRC}

clean: 
	rm -f Makefile config.status config.log config.cache defines.h stamp-h \
		configure defines.h.in funcs.h help.c \
		less.nro less.man lesskey.nro lesskey.man lessecho.nro lessecho.man 

distclean: clean
realclean: clean

REPLACE_VERSION = \
	DT=`date '+%d %h %Y'`; \
	echo "Stuffing version number ${REL} into $@"; \
	rm -f $@; \
	sed \
		-e "s;@@VERSION@@;${REL};" \
		-e "s;@@DATE@@;$$DT;" >$@

${srcdir}/less.nro: ${srcdir}/less.nro.VER ${srcdir}/version.c
	${REPLACE_VERSION} ${srcdir}/less.nro.VER
${srcdir}/lesskey.nro: ${srcdir}/lesskey.nro.VER ${srcdir}/version.c
	${REPLACE_VERSION} ${srcdir}/lesskey.nro.VER
${srcdir}/lessecho.nro: ${srcdir}/lessecho.nro.VER ${srcdir}/version.c
	${REPLACE_VERSION} ${srcdir}/lessecho.nro.VER

${srcdir}/less.man: ${srcdir}/less.nro
	${NROFF} ${srcdir}/less.nro >${srcdir}/less.man
${srcdir}/lesskey.man: ${srcdir}/lesskey.nro
	${NROFF} ${srcdir}/lesskey.nro >${srcdir}/lesskey.man
${srcdir}/lessecho.man: ${srcdir}/lessecho.nro
	${NROFF} ${srcdir}/lessecho.nro >${srcdir}/lessecho.man

compose.uni: unicode/UnicodeData.txt
	./mkutable -f2 Mn Me -- unicode/UnicodeData.txt > $@
fmt.uni: unicode/UnicodeData.txt
	./mkutable -f2 Cf -- unicode/UnicodeData.txt > $@
ubin.uni: unicode/UnicodeData.txt
	./mkutable -f2 Cc Cs Co Zl Zp -- unicode/UnicodeData.txt > $@
wide.uni: unicode/EastAsianWidth.txt
	./mkutable -f1 W F -- unicode/EastAsianWidth.txt > $@

unicode-check:
	rm -rf unicode-old
	mv -f unicode unicode-old
	${MAKE} -f Makefile.aut unicode/UnicodeData.txt unicode/EastAsianWidth.txt
	@if diff -q unicode-old unicode >/dev/null; then rm -rf unicode; mv -f unicode-old unicode; echo "unicode files already up to date"; else echo "unicode files updated"; fi

unicode/UnicodeData.txt:
	mkdir -p unicode
	lftp -c 'open -u "anonymous:${EMAIL}" ftp.unicode.org ; get Public/UNIDATA/UnicodeData.txt -o $@'
	touch $@
unicode/EastAsianWidth.txt:
	mkdir -p unicode
	lftp -c 'open -u "anonymous:${EMAIL}" ftp.unicode.org ; get Public/UNIDATA/EastAsianWidth.txt -o $@'
	touch $@

distfiles: ${DISTFILES}

echo_distfiles: 
	@echo $(subst .nro,.nro.VER,${DISTFILES})

dist: ${DISTFILES}
	if [ ! -d ${srcdir}/release ]; then mkdir ${srcdir}/release; fi
	@LESSREL=less-${REL} && RELDIR=release/$$LESSREL && \
	TARF=$$LESSREL-beta.tar.gz && ZIPF=$$LESSREL-beta.zip && \
	cd ${srcdir} && \
	rm -rf $$RELDIR && mkdir $$RELDIR && \
	echo "Preparing $$LESSREL" && \
	rm -rf $$LESSREL && mkdir $$LESSREL && \
	for f in ${DISTFILES}; do mkdir -p $$(dirname $$LESSREL/$$f); cp $$f $$LESSREL/$$f; done && \
	cd $$LESSREL && chmod -w * && chmod +w ${DISTFILES_W} lesstest && chmod +x configure && cd .. && \
	echo "Creating $$RELDIR/$$TARF" && \
	tar -cf - $$LESSREL | gzip -c >$$RELDIR/$$TARF && \
	echo "Signing $$RELDIR/$$TARF" && \
	gpg --detach-sign $$RELDIR/$$TARF && \
	mv $$RELDIR/$$TARF.sig $$RELDIR/$$LESSREL.sig && \
	echo "Creating $$RELDIR/$$ZIPF" && \
	zip -rq $$RELDIR/$$ZIPF $$LESSREL && \
	rm -rf $$LESSREL

tagall:
	echo "tagging v${REL}"; \
	$(GIT) tag -a -f -m "v${REL}" "v${REL}"

gnu_upload:
	@if [ -z "${REL}" ]; then echo "Please set REL=nnn"; exit 1; fi; \
	LESSREL=less-${REL} && RELDIR=release/$$LESSREL && \
	TARF=$$LESSREL.tar.gz && \
	if [ ! -s $$RELDIR/$$TARF ]; then echo "$$RELDIR/$$TARF does not exist"; exit 1; fi; \
	cd $$RELDIR && \
	gpg -b $$TARF && \
	( echo "version: 1.2"; echo "directory: less"; echo "filename: $$TARF" ) > $$TARF.directive && \
	gpg --clearsign $$TARF.directive && \
	echo "upload ready: cd $$RELDIR; ftp ftp-upload.gnu.org; cd /incoming/ftp; put $$TARF $$TARF.sig $$TARF.directive.asc"