##
## Makefile for Proof General development.
## 
## Author:  David Aspinall <da@dcs.ed.ac.uk>
##
## Maintainer:  Proof General maintainer <proofgen@dcs.ed.ac.uk>
##
## Developer use only, not part of distribution.
##
##    make clean	  - remove intermediate files
##    make distclean	  - remove all generated files
##
##    make ChangeLog	  - make ChangeLog from CVS sources (uses emacs)
##    make tag		  - tag the CVS sources with CVS_RELEASENAME
##    make untag	  - remove tag CVS_RELEASENAME from the sources
##    make dist           - make a distribution from sources with above tag
##    make rpm		  - make RPM packages based on etc/ProofGeneral.spec
##
##    make release	  - make tag, dist, and install it in RELEASEDIR.
##    make releaseall	  - make release, local installation and rpmrelease.
##
##    make distinstall	  - install distribution build by 'make dist'
##			    into DISTINSTALLDIR.
##
##    make releaseclean   - clean up after 'make dist' 'make rpmrelease'.
##
##
## Notes:
##   Use 'make untag' before re-trying if 'make releaseall' fails.
##   Use 'make releaseclean' if giving up, to remove temp dirs.
##
##   No facility to edit html to make a full release in this makefile.  
##   Too much effort for infrequenty used function.  
##   Must edit download.html by hand, then run 
##
##    make releaseall VERSION=2.0
##
##   Or similar to make the required version.
##
## $Id$
## 
###########################################################################


# Release tag.  For pre-releases.  Watch out with
# substitution in tag target below, which edits
# html/download.html
PRERELEASE_TAG=2.0pre$(shell date "+%y%m%d")


# This is used for full releases to control the tag name
# and distribution name.  No editing of html is done
# when PRERELEASE_TAG != VERSION
VERSION=$(PRERELEASE_TAG)

NAME = ProofGeneral
LATESTNAME = ProofGeneral-latest
DEVELLATESTNAME = ProofGeneral-devel-latest

#   NB: CVS tags can't have points in them.  
#   Substitute points for hyphens.
CVS_VERSION=$(shell echo $(VERSION) | sed 's/\./-/g')

# Name of tar file and RPM file.
RELEASENAME = ProofGeneral-$(VERSION)
DEVELRELEASENAME = ProofGeneral-$(VERSION)-devel
CVS_RELEASENAME = Release-$(CVS_VERSION)

# Where to release (i.e. copy) a new distribution to
RELEASEDIR = /home/proofgen/www/

CVSNAME = ProofGeneral

# Remote commands to use CVS in server mode and install files.
# With these settings the build can be done remotely.
# MACHINE=hope
# CVSROOT = :ext:$(USER)@$(MACHINE).dcs.ed.ac.uk:/home/proofgen/src
# CVS_RSH=ssh
CVSROOT = /home/proofgen/src

# Emacs
EMACS=xemacs

# GNU version of tar, please
TAR=tar

# For recursive make
DEVELMAKE=make -f Makefile.devel

# Files not to include the distribution area or tarball 
NONDISTFILES=html etc Makefile.devel doc/notes.txt images/*.xcf images/notes.txt images/gimp images/Makefile

# Files not to include in the distribution tarball
IGNOREDFILES=doc/ProofGeneral.dvi Makefile.devel todo

# Temporary directory to to build a distribution in
DISTBUILDIR = /tmp/ProofGeneralRelease

# Temporary RPM topdir for building packages as non-root user.
RPMTOPDIR=/tmp/ProofGeneral-rpm
RPMRC=$(RPMTOPDIR)/rpmrc
RPM=rpm --rcfile $(RPMRC)

RELEASENAMETAR = $(RELEASENAME).tar
RELEASENAMETARGZ = $(RELEASENAMETAR).gz
# What the RPM should be called.
RELEASENAMERPM = $(RELEASENAME)-1.noarch.rpm

DEVELRELEASENAMETAR = $(DEVELRELEASENAME).tar
DEVELRELEASENAMETARGZ = $(DEVELRELEASENAMETAR).gz


# Files not kept under cvs to clean away.
FILES_NONCVS = ChangeLog TAGS

# Where to install a distribution 
# DISTINSTALLDIR=/usr/local/share/elisp/proofgeneral
# value for dcs.ed.ac.uk:
DISTINSTALLDIR=/export/local/share/elisp

# Copied from distributed Makefile
ELISP_DIRS=generic lego coq isa

PWD=$(shell pwd)

BYTECOMP = $(EMACS) -batch -q -no-site-file -eval '(setq load-path (append (list "$(PWD)/generic" "$(PWD)/lego" "$(PWD)/coq" "$(PWD)/isa") load-path))' -f batch-byte-compile

EL=$(shell for f in $(ELISP_DIRS); do ls $$f/*.el; done)
ELC=$(EL:.el=.elc)

.SUFFIXES:	.el .elc

.el.elc:
	$(BYTECOMP) $*.el

FORCE:

# Targets to pre-compile for distribution
# Slightly dodgy to include elisp compile here, because
# it can be incompatible across emacs versions.
alldist:	alldocs


############################################################
#
# Make tags file
#
tags:	$(ELC)
	etags $(EL) > TAGS



############################################################
#
# Re-Build ChangeLog.  CVSROOT must be set correctly.
# Correct dependency would be to check repository for changes!
#
ChangeLog:	FORCE
	rm -f ChangeLog
	$(EMACS) -batch -q -f vc-update-change-log -f save-buffer



############################################################
#
# Clean up intermediate files
#
clean:	
	(cd doc; $(MAKE) clean)
	(cd images; $(MAKE) clean)


############################################################
#
# Clean up all generated files.
#
distclean:	clean
	(cd doc; $(MAKE) distclean)
	(cd images; $(MAKE) distclean)

############################################################
#
# Clean up all non-cvs files.
#
cvsclean:	clean
	rm -rf $(FILES_NONCVS)
	(cd doc; $(MAKE) distclean)
	(cd images; $(MAKE) cvsclean)

############################################################
#
# Documentation
#
doc:	FORCE
	(cd doc; $(MAKE) doc)

alldocs: FORCE
	(cd doc; $(MAKE) all)

############################################################
#
# Images
#
images:	FORCE
	(cd images; $(MAKE) images)




############################################################
##
## tag:    tag the CVS sources of working directory with CVS_RELEASENAME,
##	   set version stamp in proof-site.el and ProofGeneral.spec 
##         to VERSION, and edit download.html if VERSION matches 
##	   PRERELEASE_TAG.
##
tag:		
	@echo "*************************************************"
	@echo " Tagging sources... (fails if CVS source dirty)"
	@echo "*************************************************"
	if [ -n "`cvs -n -q update`" ]; then exit 1; fi
# Tag proof-site.el and ProofGeneral.spec
	(cd generic; mv proof-site.el proof-site.el.old; sed -e 's/defconst proof-version \".*\"/defconst proof-version \"Proof General, Version $(VERSION) released by da,tms. Email proofgen@dcs.ed.ac.uk.\"/g' proof-site.el.old > proof-site.el; rm proof-site.el.old)
	(cd etc; mv ProofGeneral.spec ProofGeneral.spec.old; sed -e 's/Version:.*$$/Version:	$(VERSION)/g' ProofGeneral.spec.old > ProofGeneral.spec; rm ProofGeneral.spec.old)
# Edit download.html only for prereleases.
# Careful: the sed command below relies on previous value of PRERELEASE_TAG.
	if [ $(PRERELEASE_TAG) = $(VERSION) ]; then \
	  (cd html; mv download.html download.html.old; sed -e 's|ProofGeneral-2\.0pre......|ProofGeneral-$(PRERELEASE_TAG)|g' download.html.old > download.html; rm download.html.old) \
	fi
# This hack to SOURCE: name is only needed because we have an obsolete version
# of rpm installed on standard machines at dcs.ed, and we have to build with
# that version.  Otherwise we could use the %{version} macro in the spec file.
	(cd etc; mv ProofGeneral.spec ProofGeneral.spec.old; sed -e 's/ProofGeneral-.*.tar.gz/$(RELEASENAMETARGZ)/g' ProofGeneral.spec.old > ProofGeneral.spec; rm ProofGeneral.spec.old)
	cvs commit -m"Set version tag for new release." generic/proof-site.el html/download.html etc/ProofGeneral.spec
	cvs tag "$(CVS_RELEASENAME)"

############################################################
##
## untag:  Remove the CVS_RELEASENAME tag from the CVS sources.
##

untag:
	cvs tag -d "$(CVS_RELEASENAME)"


############################################################
##
## dist: make a distribution in DISTBUILDIR from CVS sources
##       Builds for user-distribution, from sources tagged 
##       with CVS_RELEASENAME.
##	 Moves html files to parent directory, removes
##       non-distributed files.
##	    
dist:	
	@echo "*************************************************"
	@echo " Cleaning dist build directory..."
	@echo "*************************************************"
	rm -rf $(DISTBUILDIR)
	mkdir -p $(DISTBUILDIR)
	@echo "*************************************************"
	@echo " Running cvs export .."
	@echo "*************************************************"
	(cd $(DISTBUILDIR); cvs export -kv -r "$(CVS_RELEASENAME)" -d $(RELEASENAME) $(CVSNAME))
	@echo "*************************************************"
	@echo " Running 'make alldist' for new release .."
	@echo "*************************************************"
	(cd $(DISTBUILDIR)/$(RELEASENAME); $(DEVELMAKE) alldist)
	(cd $(DISTBUILDIR)/$(RELEASENAME); $(DEVELMAKE) clean)
	@echo "*************************************************"
	@echo " Copying doc files .."
	@echo "*************************************************"
	(cp -pr $(DISTBUILDIR)/$(RELEASENAME)/doc $(DISTBUILDIR))
	@echo "*************************************************"
	@echo " Moving html files .."
	@echo "*************************************************"
	(cd $(DISTBUILDIR)/$(RELEASENAME)/html; mv * ../..)
	@echo "*************************************************"
	@echo " Cleaning non-distributed files .."
	@echo "*************************************************"
	(cd $(DISTBUILDIR)/$(RELEASENAME); rm -rf $(NONDISTFILES))
	@echo "*************************************************"
	@echo " Making compressed tar file..."
	@echo "*************************************************"
	(cd $(DISTBUILDIR); for f in $(IGNOREDFILES); do echo $$f >> ignoredfiles; done)
	$(TAR) -cvhf $(DISTBUILDIR)/$(RELEASENAMETAR) -C $(DISTBUILDIR) $(RELEASENAME) -X $(DISTBUILDIR)/ignoredfiles
	gzip -9 $(DISTBUILDIR)/$(RELEASENAMETAR)
	@echo "*************************************************"
	@echo " Finished making dist."
	@echo "*************************************************"

############################################################
##
## develdist: make a distribution for developers from 
##	  raw CVS sources.
##	    
develdist:
	@echo "*************************************************"
	@echo " Making developer distribution..."
	@echo "*************************************************"
	mkdir -p $(DISTBUILDIR)
	(cd $(DISTBUILDIR); cvs export -kv -r "$(CVS_RELEASENAME)" -d $(RELEASENAME)-devel $(CVSNAME))
	$(TAR) -cvhf $(DISTBUILDIR)/$(DEVELRELEASENAMETAR) -C $(DISTBUILDIR) $(DEVELRELEASENAME)
	gzip -9 $(DISTBUILDIR)/$(DEVELRELEASENAMETAR)


############################################################
##
## release:
##     tag the CVS sources, and make a distribution.
##     Then install the distribution in RELEASEDIR.
##     WARNING: RELEASEDIR is not cleaned, but files there
##     with same names will be overwritten.
##     Moreover, a link ProofGeneral -> ProofGeneral-<version>
##     is made.
##	  
release: distclean tag dist develdist
	mkdir -p $(RELEASEDIR)
	cp -pfr $(DISTBUILDIR)/* $(RELEASEDIR)
	(cd $(RELEASEDIR); rm -f $(NAME); ln -s $(RELEASENAME) $(NAME))
	(cd $(RELEASEDIR); ln -sf $(RELEASENAMETARGZ) $(LATESTNAME).tar.gz)
	(cd $(RELEASEDIR); ln -sf $(RELEASENAME)-1.noarch.rpm $(LATESTNAME).noarch.rpm)
	(cd $(RELEASEDIR); ln -sf $(DEVELRELEASENAMETARGZ) $(DEVELLATESTNAME).tar.gz)
	@echo "*************************************************"
	@echo " Finished installing dist."
	@echo "*************************************************"


############################################################
##
## rpm:
##     Build an RPM package from the recently made distribution 
##     $(DISTBUILDIR)/$(RELEASENAMETAR).gz, using the spec and
##     patch file in ./etc
##
##	  
rpm:	
	rm -rf $(RPMTOPDIR)
	mkdir -p $(RPMTOPDIR) $(RPMTOPDIR)/BUILD $(RPMTOPDIR)/SOURCES $(RPMTOPDIR)/SRPMS $(RPMTOPDIR)/RPMS $(RPMTOPDIR)/RPMS/noarch
	echo "topdir: $(RPMTOPDIR)" > $(RPMRC)
	cp -p etc/ProofGeneral.patch $(RPMTOPDIR)/SOURCES
	cp -p $(DISTBUILDIR)/$(RELEASENAMETARGZ) $(RPMTOPDIR)/SOURCES
	$(RPM) -ba etc/ProofGeneral.spec


############################################################
##
## rpmrelease:
##     Build and install RPM packages into RELEASEDIR.
##	  
rpmrelease: rpm
	cp -pf $(RPMTOPDIR)/SRPMS/* $(RPMTOPDIR)/RPMS/noarch/* $(RELEASEDIR)

############################################################
##
## releaseclean:
##     Clean up temporary directories after building dist/release.
##
releaseclean:
	rm -rf $(DISTBUILDIR) $(RPMTOPDIR)

############################################################
##
## releaseall:
##     Do everything!
##	  
releaseall: release rpmrelease distinstall releaseclean 


############################################################
##
## releasefinal:
##     Do everything for a final release based on a pre-release.
##     Don't use       
##
releasefinal: release rpmrelease distinstall releaseclean 


############################################################
##
## distinstall:
##     Do everything for a local release.
##	  
distall: distclean tag dist distinstall releaseclean



############################################################
#
# distinstall:
#   Install distribution from $(DISTBUILDIR) into DISTINSTALLDIR
#   Clean out DISTINSTALLDIR first.
#   NB!  Simple install, no attempt to put info files, etc, in
#   special places.
#
distinstall:
	rm -rf $(DISTINSTALLDIR)/$(NAME)
	mkdir -p $(DISTINSTALLDIR)
	(cd $(DISTINSTALLDIR); \
	 $(TAR) -xpzf $(DISTBUILDIR)/$(RELEASENAMETARGZ); \
	 mv $(RELEASENAME) $(NAME))