#=============================================================================
#
# Maintainer stuff; don't even LOOK at this - and when you E-mail me
# about it you'll get blacklisted }:-).
#
# I added it only here for other GNU maintainers to look at.
# In order to use this as-is, you'll need the following utilities:
#
# GNU make
# GNU which-2.x
# GNU awk
# GNU date
# GNU groff
# rpm-4.x
# texinfo2man.c (I'll make this available via my home page)
# texi2html
# cvs2html
# rcs2log
# cut
# grep
# egrep
# test
# sed
# head
# tail
#
# This maintainer Makefile provides the following functionality:
#
# Targets
# -------
#
# - release
#	Creates everything and puts it all in the release directory $(WWWDIR)
#       This target calls all of the below targets.
#	Note: You must `cvs commit' *before* calling this target!
#
# The remaining targets can be used to test a part of the distribution process,
# but are not really useful on their own otherwise.
#
# - cvslog
#	Generates html-ized ChangeLog from the CVS repository log.
#
# - html
#	Generates html-ized man page(s) (from @PACKAGE@.texinfo) and
#	the release front page index.html. index.html is generated by
#	replacing "!VERSION!" in index.html.in by @VERSION@ and the
#	word "CHANGELOGLIST" by a list of links the cvslog change logs
#	(also from previous releases).
#
# - @PACKAGE@.lsm
#	Generates an LSM file for distribution via the web page.
#	It does this by simply replacing "!VERSION!" by @VERSION@.
#
# - rpm
#	Generates the $(TARGET).rpm and src.rpm files.
#	This target calls all of the below targets.
#
# - $(SPECFILE)
#	Generates the rpm spec file from the file `$(SPECFILE).in' by
#	replacing "!VERSION!" by @VERSION@ and "!CHANGELOG!" by an
#	rpm %changelog list generated from the CVS repository log.
#
# - README
#	Generate README file by replacing "!VERSION!" in README.in by
#	@VERSION@.
#
# - @PACKAGE@.1
#	Generate man page from @PACKAGE@.texinfo.
#
# - ChangeLog
#	Generates the `ChangeLog' file from the CVS repository logs.

WWWDIR=/home/carlo/www/@PACKAGE@
REDHAT:=$(shell grep '^%_topdir' rpm/macros | cut -d \  -f 2)
SPECFILE=@PACKAGE@-${shell echo "@VERSION@" | cut -d. -f1}.spec
RPMDIR=$(top_builddir)/rpm
TARGET=i386
REL=1
AUTHOR=Carlo Wood <carlo@gnu.org>
TAG:=${shell echo "V@VERSION@" | sed -e 's/\./_/g'}
PREVTAG:=${shell test -f .prevtag && cat .prevtag}
CVSREADACCESS:=${shell if test -f $(srcdir)/CVS/Entries; then echo "yes"; else echo "no"; fi}

test-values:
	@echo "WWWDIR        = \"$(WWWDIR)\""
	@echo "REDHAT        = \"$(REDHAT)\""
	@echo "SPECFILE      = \"$(SPECFILE)\""
	@echo "TARGET        = \"$(TARGET)\""
	@echo "REL           = \"$(REL)\""
	@echo "AUTHOR        = \"$(AUTHOR)\""
	@echo "TAG           = \"$(TAG)\""
	@echo "PREVTAG       = \"$(PREVTAG)\""
	@echo "PACKAGE       = \"@PACKAGE@\""
	@echo "VERSION       = \"@VERSION@\""
	@echo "CVSREADACCESS = \"$(CVSREADACCESS)\""

## Make sure the ChangeLog is up to date in maintainer mode
.PHONY: release tar rpm cvslog html ChangeLog

@PACKAGE@.1: @PACKAGE@.1.in @PACKAGE@.texinfo texinfo2man configure.ac
	./texinfo2man @PACKAGE@.1.in @PACKAGE@.texinfo > @PACKAGE@.1

texinfo2man: ../indent/texinfo2man.c
	$(CC) -g -o texinfo2man ../indent/texinfo2man.c

@PACKAGE@.lsm: @PACKAGE@.lsm.in configure.ac
	sed -e 's%!VERSION!%'`grep 's,@VERSION' config.status | cut -d, -f3`'%g' @PACKAGE@.lsm.in > @PACKAGE@.lsm

rpm: dist $(SPECFILE) $(LSMFILE)
	mv @PACKAGE@-@VERSION@.tar.gz $(RPMDIR)/SOURCES
	cd rpm; rpmbuild --rcfile=/usr/lib/rpm/rpmrc:rpmrc --sign --clean -ba ../$(SPECFILE)

reconfig: $(top_builddir)/config.status
	$(top_builddir)/config.status --recheck
	$(top_builddir)/config.status

cvslog:
	@( \
	   D1=`cat .release_second`; \
	   D2=`date +%s`; \
	   DD=`echo "$$D1 $$D2" | awk '{ printf("%d\n", ($$2 - $$1)/86400) }'`; \
	   echo "Last release was $$DD days ago."; \
	   cvs2html -e -r$(PREVTAG):HEAD -o cvslog-@VERSION@; \
	 )

$(SPECFILE): $(SPECFILE).in configure.ac
	cvs commit $(SPECFILE).in
	sed -e 's/!VERSION!/@VERSION@/g' $(SPECFILE).in | grep -B2000 '!CHANGELOG!' | grep -v '!CHANGELOG!' > $(SPECFILE)
	echo -n "%changelog" >> $(SPECFILE)
	cvs log $(SPECFILE).in | \
	  grep -A2000 '^-----' | \
	  egrep -v '^-----|^=====|^revision' | \
	  awk -F'[ ;]' --assign lastdate="" '{ if ($$0~/^date: /) { \
	    if (lastdate != $$2) { \
	      lastdate=$$2; \
	      printf("\n* "); \
	      system("echo -n `date --date \""$$2" "$$3"\" \"+%a %b %d %Y\"`"); \
	      printf(" $(AUTHOR)\n"); \
	    } \
	  } else if ($$0~/^[A-Z]/) { printf("- %s\n", $$0); } else if ($$0~/./) { printf("  %s\n", $$0); } else {print} }' >> $(SPECFILE)
	grep -A2000 '!CHANGELOG!' $(SPECFILE).in | grep -v '!CHANGELOG!' >> $(SPECFILE)

ChangeLog:
	if test $(CVSREADACCESS) = yes; then \
	echo "`which --skip-dot cvs` \`echo \"\$$*\" | sed -e 's%1970%1990%'\`" > cvs; \
	chmod 755 cvs; \
	  here=`pwd`; \
	  (cd $(srcdir); PATH="$$here:$$PATH" rcs2log) > ChangeLog; \
	  rm cvs; \
	else \
	  touch ChangeLog; \
	fi

release: cvslog html @PACKAGE@.lsm NEWS
	#install -m 644 $(REDHAT)/SRPMS/@PACKAGE@-@VERSION@-$(REL).src.rpm $(WWWDIR)
	#install -m 644 $(REDHAT)/RPMS/$(TARGET)/@PACKAGE@-@VERSION@-$(REL).$(TARGET).rpm $(WWWDIR)
	#install -m 644 $(REDHAT)/SOURCES/@PACKAGE@-@VERSION@.tar.gz $(WWWDIR)
	install -m 644 index.html $(WWWDIR)
	install -m 644 @PACKAGE@.lsm $(WWWDIR)
	install -m 644 `ls cvslog-@VERSION@*.html | grep -v cvslog-@VERSION@_rpm` $(WWWDIR)
	#install -m 644 @PACKAGE@*.html $(WWWDIR)
	install -m 644 NEWS $(WWWDIR)
	rm cvslog-@VERSION@*.html
	cvs tag $(TAG)
	echo "$(TAG)" > .prevtag
	date +%s > .release_second

##-----------------------------------------------------------------------------
## `which' specific generation:

html: index.html.in configure.ac
	grep -B2000 '^CHANGELOGLIST' index.html.in \
	    | sed -e 's%!VERSION!%@VERSION@%g' \
	    | grep -v '^CHANGELOGLIST' > index.html
	( \
	  VER=`echo "@VERSION@" | cut -d. -f1`; \
	  PATCHLEVEL=`echo "@VERSION@" | cut -d. -f2`; \
	  while test "$$PATCHLEVEL" != "-1" ; do \
	    echo "<LI><A HREF="cvslog-$$VER.$$PATCHLEVEL.html">Version $$VER.$$PATCHLEVEL</A>" >> index.html; \
	    PATCHLEVEL=`echo "$$PATCHLEVEL" | awk '{ printf("%d", $$1 - 1); }'`; \
	  done \
	)
	grep -A2000 '^CHANGELOGLIST' index.html.in | grep -v '^CHANGELOGLIST' | grep -B2000 '^MANPAGE' | grep -v '^MANPAGE' >> index.html
	groff -man -Tascii which.1 | sed -e 's/.//g' | head -n 61 | tail -n 58 >> index.html
	groff -man -Tascii which.1 | sed -e 's/.//g' | head -n 123 | tail -n 51 | grep -B2000 '^ ' >> index.html
	grep -A2000 '^MANPAGE' index.html.in | grep -v '^MANPAGE' | grep -B2000 '^EXAMPLES' | grep -v '^EXAMPLES' >> index.html
	cat EXAMPLES >> index.html
	grep -A2000 '^EXAMPLES' index.html.in | grep -v '^EXAMPLES' >> index.html

EXAMPLES: which
	( cd test; ./whichtest check; ) || exit -1;
	( cd test; ./whichtest generate; )

README: which.1 README.in configure.ac
	sed -e 's%!VERSION!%'`grep 's,@VERSION' config.status | cut -d, -f3`'%g' README.in > README
	groff -man -Tascii which.1 | sed -e 's/.//g' | head -n 61 | tail -n 58 >> README
	groff -man -Tascii which.1 | sed -e 's/.//g' | head -n 123 | tail -n 51 | grep -B2000 '^ ' >> README