# -*-Makefile-*-
# This Makefile fragment is shared between fileutils, sh-utils, textutils.

maintainer-check:
	if head ChangeLog| grep 'Version $(VERSION)' > /dev/null; then \
	  :; \
	else \
	  echo "$(VERSION) not in ChangeLog; not tagging" 1>&2; \
	  exit 1; \
	fi
	$(MAKE) distcheck
	$(MAKE) my-distcheck

prev_version_file = .prev-version

THIS_VERSION_REGEXP = $(subst .,\.,$(VERSION))
PREV_VERSION := $(shell cat $(prev_version_file))
PREV_VERSION_REGEXP := $(shell echo $(PREV_VERSION)|sed 's/\./\\./g')

tag-package = $(shell echo "$(PACKAGE)" | tr '[:lower:]' '[:upper:]')
tag-this-version = $(subst .,_,$(VERSION))
tag-prev-version = $(subst .,_,$(PREV_VERSION))
this-cvs-tag = $(tag-package)-$(tag-this-version)
prev-cvs-tag = $(tag-package)-$(tag-prev-version)
my_distdir = $(PACKAGE)-$(VERSION)

# Verify that all source files using _() are listed in po/POTFILES.in.
po-check:
	grep -E -v '^(#|$$)' po/POTFILES.in | sort > $@-1
	grep -E -l '\b_\(' lib/*.c src/*.c | sort > $@-2
	diff -u $@-1 $@-2
	rm -f $@-1 $@-2

# Do not save the original name or timestamp in the .tar.gz file.
GZIP_ENV = --no-name

# Tag before making distribution.  Also, don't make a distribution if
# checks fail.  Also, make sure the NEWS file is up-to-date.
# FIXME: use dist-hook/my-dist like distcheck-hook/my-distcheck.
cvs-dist: maintainer-check
	echo $(this-cvs-tag); \
	if cvs -n log -h README| grep -e $(this-cvs-tag): > /dev/null; then \
	  echo "VERSION not new; not tagging" 1>&2; \
	  exit 1; \
	fi; \
	cvs update po; \
	cvs tag -c $(this-cvs-tag)
	$(MAKE) dist

# Use this to make sure we don't run these programs when building
# from a virgin tgz file, below.
null_AM_MAKEFLAGS = \
  ACLOCAL=false \
  AUTOCONF=false \
  AUTOMAKE=false \
  AUTOHEADER=false \
  MAKEINFO=false

# Detect format-string/arg-list mismatches that would normally be obscured
# by the use of _().  The --disable-nls effectively defines away that macro,
# and building with CFLAGS='-Wformat -Werror' causes any format warning to be
# treated as a failure.
t=./=test
my-distcheck: writable-files po-check
	-rm -rf $(t)
	mkdir $(t)
	GZIP=$(GZIP) $(AMTAR) -C $(t) -zxf $(distdir).tar.gz
# Removing $(DEPDIR) like this is a gross kludge to work around a bug
# in automake.  Remove that line once it's fixed.
	cd $(t)/$(distdir) \
	  && ./configure --disable-nls \
	  && $(MAKE) CFLAGS='-Wformat -Werror' \
	      AM_MAKEFLAGS='$(null_AM_MAKEFLAGS)' \
	  && $(MAKE) dvi \
	  && $(MAKE) check \
	  && $(MAKE) distclean \
	  && rm -rf $(DEPDIR)
	cd $(t) && mv $(distdir) $(distdir).old \
	  && $(AMTAR) -zxf ../$(distdir).tar.gz
	diff -ur $(t)/$(distdir).old $(t)/$(distdir)
	-rm -rf $(t)
	@echo "========================"; \
	echo "$(distdir).tar.gz is ready for distribution"; \
	echo "========================"

a_host = alpha.gnu.org
b_host = freefriends.org

alpha_subdir = gnu/fetish
a_url_dir = $(alpha_subdir)
b_url_dir = $(alpha_subdir)

# This must be the same name on both hosts.
# Make it a symlink that points to the right place.
real_dir = fetish-ftp

url_dir_list = $(foreach x,a b,ftp://$($(x)_host)/$($(x)_url_dir))

md5 = $(shell md5sum < $(my_distdir).tar.gz|sed 's/  -//')
sha1 = $(shell sha1sum < $(my_distdir).tar.gz|sed 's/  -//')

rel-check:
	tarz=/tmp/rel-check-tarz-$$$$; \
	md5_tmp=/tmp/rel-check-md5-$$$$; \
	set -e; \
	trap 'status=$$?; rm -f $$tarz $$md5_tmp; exit $$status' 0 1 2 3 15; \
	wget -q --output-document=$$tarz $(url); \
	echo "$(md5)  -" > $$md5_tmp; \
	md5sum -c $$md5_tmp < $$tarz

release-archive-dir = ../release
prev-tgz = $(PACKAGE)-$(PREV_VERSION).tar.gz
xd-delta = $(PACKAGE)-$(PREV_VERSION)-$(VERSION).xdelta

announcement: NEWS ChangeLog $(distdir).tar.gz
	@( \
	  echo Subject: $(my_distdir) released; \
	  echo; \
	  echo FIXME: put comments here; \
	  echo; \
	  for url in $(url_dir_list); do \
	    echo "  $$url/$(my_distdir).tar.gz"; \
	  done; \
	  echo; \
	  echo And here are xdelta-style diffs; \
	  echo; \
	  for url in $(url_dir_list); do \
	    echo "  $$url/$(xd-delta)"; \
	  done; \
	  echo; \
	  echo "Here are the MD5 and SHA1 signatures for the .tar.gz file"; \
	  echo; \
	  echo "$(md5)  $(my_distdir).tar.gz"; \
	  echo "$(sha1)  $(my_distdir).tar.gz"; \
	  echo; \
	  echo NEWS:; \
	  sed -n "/$(THIS_VERSION_REGEXP)/,/^\[$(PREV_VERSION_REGEXP)/p" NEWS \
	    | grep -v '^\['; \
	  echo; \
	  echo ChangeLog entries:; \
	  find . -name ChangeLog -maxdepth 2 \
	    | xargs cvs diff -up -r$(prev-cvs-tag) -rHEAD \
	    | sed -n 's/^+//p' \
	    | perl -ne 'm!^\+\+ (\./)?! or print,next;' \
	      -e 'print "\n"."*"x70 ."\n"; s///; print; print "*"x70 ."\n"'; \
	)

writable-files:
	for file in $(distdir).tar.gz $(xd-delta)			\
	  ../release/$(distdir).tar.gz ../release/$(xd-delta); do	\
	  test -e $$file || continue;					\
	  test -w $$file						\
	    || { echo ERROR: $$file is not writable; fail=1; };		\
	done;								\
	test "$$fail" && exit 1 || :

WGET = wget
ftp-gnu = ftp://ftp.gnu.org/gnu

automake_repo=:pserver:anoncvs@anoncvs.cygnus.com:/cvs/automake
.PHONY: wget-update
wget-update:
	$(WGET) $(ftp-gnu)/texinfo/texinfo.tex -O $(srcdir)/doc/texinfo.tex
	for f in config.guess config.sub; do \
	  $(WGET) $(ftp-gnu)/config/$$f -O $(srcdir)/$$f; \
	done
	for f in depcomp missing; do \
	  echo checking out $$f...; \
	  cvs -d $(automake_repo) co -p automake/$$f > t$$$$ \
	    && mv t$$$$ $$f; \
	done

define emit-rsync-commands
	echo =====================================
	echo =====================================
	echo 'for host in $(a_host) $(b_host); do \'
	echo '  rsync -e ssh --pro -av $(xd-delta) $(my_distdir).tar.gz \'
	echo '    $$host:$(real_dir); done'
	echo '# send the /tmp/announcement e-mail'
	echo =====================================
	echo =====================================
endef

# Make sure that the copyright date in lib/version-etc.c is up to date.
check-copyright: lib/version-etc.c
	@grep 'N_("Copyright (C) $(shell date +%Y) Free' $< > /dev/null \
	  || { echo 'out of date copyright in $<; update it' 1>&2; exit 1; }

alpha: writable-files po-check check-copyright
	$(MAKE) cvs-dist
	$(MAKE) -s announcement > /tmp/announce-$(my_distdir)
	ln $(distdir).tar.gz ../release
	chmod a-w $(distdir).tar.gz
	cd $(release-archive-dir) \
	  && xdelta delta -9 $(prev-tgz) $(distdir).tar.gz $(xd-delta) || :
	ln $(release-archive-dir)/$(xd-delta) .
	chmod a-w $(release-archive-dir)/$(xd-delta)
	echo $(VERSION) > $(prev_version_file)
	cvs ci -m. $(prev_version_file)
	@$(emit-rsync-commands)
