#!/usr/bin/make -f

CC =gcc
CPPFLAGS :=$(shell dpkg-buildflags --get CPPFLAGS)
CFLAGS :=-Wall $(shell dpkg-buildflags --get CFLAGS) $(CPPFLAGS)
LDFLAGS :=$(shell dpkg-buildflags --get LDFLAGS)
HOST_CPU := $(shell dpkg-architecture -qDEB_HOST_GNU_CPU)
TEST =test
TEST_OPTS =
OPTS =NO_OPENSSL=1 prefix=/usr gitexecdir=/usr/lib/git-core \
  libexecdir=/usr/lib/git-core \
  mandir=/usr/share/man htmldir=/usr/share/doc/git/html \
  INSTALLDIRS=vendor \
  SANE_TOOL_PATH= INSTALL=install TAR=tar \
  NO_CROSS_DIRECTORY_HARDLINKS=1 NO_INSTALL_HARDLINKS=1 \
  NO_PERL_CPAN_FALLBACKS=1 \
  PYTHON_PATH=/usr/bin/python3 \
  DEFAULT_PAGER=pager DEFAULT_EDITOR=editor \
  CC='$(CC)' CFLAGS='$(CFLAGS)' LDFLAGS='$(LDFLAGS)' \
  HOST_CPU='$(HOST_CPU)'
DOCS =html
DOC_OPTS =prefix=/usr htmldir=/usr/share/doc/git/html \
  ASCIIDOC8=1 ASCIIDOC_NO_ROFF=1

# https://wiki.debian.org/ReproducibleBuilds/TimestampsInDocumentationGeneratedByAsciidoc
DOC_OPTS += ASCIIDOC='TZ=UTC asciidoc'

ifeq (,$(findstring terse,$(DEB_BUILD_OPTIONS)))
  OPTS += V=1
  DOC_OPTS += V=1
  TEST_OPTS = --verbose
endif
ifneq (,$(findstring nocheck,$(DEB_BUILD_OPTIONS)))
  TEST =
endif
ifneq (,$(findstring nodoc,$(DEB_BUILD_OPTIONS)))
  DOCS =
endif
ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
  NUMJOBS = $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
  MAKEFLAGS += -j$(NUMJOBS)
  # Setting this with a pattern-specific rule prevents -O from
  # affecting the top-level make, which would break realtime build
  # output (unless dh is run as +dh, which causes other problems).
  %: MAKEFLAGS += -O
endif
ifneq (,$(shell dpkg-query -f '$${Version}' -W libpcre2-dev))
  OPTS += USE_LIBPCRE2=1
else
  OPTS += USE_LIBPCRE1=1
endif

TMP = $(CURDIR)/debian/tmp
GIT = $(CURDIR)/debian/git

%:
	dh $@ --with apache2 --without autoreconf

override_dh_auto_configure:

build-stamp:
	-$(CC) -v
	$(MAKE) all $(OPTS)
	touch $@

override_dh_auto_build-arch: build-stamp
	$(MAKE) -C contrib/subtree all $(OPTS)
	ln -s contrib/subtree/git-subtree

override_dh_auto_test-arch:
	test -z '$(TEST)' || \
	  GIT_SKIP_TESTS="t9128 t9167" \
	  GIT_TEST_OPTS='$(TEST_OPTS)' $(MAKE) $(TEST) $(OPTS)
	test -z '$(TEST)' || \
	  GIT_TEST_OPTS='$(TEST_OPTS)' \
	  $(MAKE) -C t \
	  t9128-git-svn-cmd-branch.sh \
	  t9167-git-svn-cmd-branch-subproject.sh \
	  $(OPTS) || :
	test -z '$(TEST)' || \
	  GIT_TEST_OPTS='$(TEST_OPTS)' $(MAKE) -C contrib/subtree $(TEST) $(OPTS)

override_dh_auto_build-indep: build-stamp
	# git-man, git-doc
	$(MAKE) -CDocumentation man $(DOCS) $(DOC_OPTS)
	# git-mediawiki
	$(MAKE) -Ccontrib/mw-to-git all $(OPTS)

override_dh_auto_test-indep:

override_dh_auto_clean:
	$(MAKE) -C contrib/mw-to-git clean $(OPTS)
	$(MAKE) -C contrib/subtree clean $(OPTS)
	$(MAKE) clean $(OPTS)
	rm -f git-subtree

override_dh_clean:
	dh_clean -Xmailinfo.c.orig

override_dh_auto_install-arch:
	# git
	DESTDIR='$(GIT)' $(MAKE) install $(OPTS)
	DESTDIR='$(GIT)' $(MAKE) -C contrib/subtree install $(OPTS)
	install -d -m0755 '$(GIT)'/var/lib/git
	rm -rf '$(GIT)'/usr/share/man
	# don't include arch, cvs, p4, svn, email, gui tools, and gitk program
	for i in git-archimport git-cvs git-p4 git-svn git-send-email \
	 git-gui git-citool; do \
	  rm -f '$(GIT)'/usr/lib/git-core/$$i*; \
	done
	rm -f '$(GIT)'/usr/bin/git-cvsserver
	rm -f '$(GIT)'/usr/bin/gitk
	# don't include git-gui's lib
	rm -rf '$(GIT)'/usr/share/git-gui/
	# don't include gitk's lib
	rm -rf '$(GIT)'/usr/share/gitk/
	# don't include git-svn's lib
	rm -rf '$(GIT)'/usr/share/perl5/Git/SVN*
	# sanity check that #642603 fix is still in place
	test $$(stat -c%h \
	  '$(GIT)'/usr/lib/git-core/git-branch) -le 10

override_dh_auto_install-indep:
	DESTDIR='$(TMP)' $(MAKE) install install-doc $(OPTS)
	DESTDIR='$(TMP)' $(MAKE) -Ccontrib/mw-to-git install $(OPTS) \
	  INSTLIBDIR=/usr/share/perl5
	test -z '$(DOCS)' || \
	  $(MAKE) -CDocumentation install-webdoc WEBDOC_DEST='$(TMP)'/html \
	  2>/dev/null
	test -z '$(DOCS)' || \
	  DESTDIR='$(TMP)' $(MAKE) -Ccontrib/subtree install-doc $(OPTS)
	install -m 0644 contrib/subtree/git-subtree.txt '$(TMP)'/html
	# RelNotes are shipped in git
	rm -rf '$(TMP)'/html/RelNotes
	# don't include git-p4 man page
	rm -f '$(TMP)'/html/git-p4.*

override_dh_install-arch:
	dh_install --arch
	rm -rf '$(GIT)'/usr/share/git-core/contrib/hooks/multimail

override_dh_install-indep:
	dh_install --indep
	for i in git-archimport git-cvs git-p4 git-svn git-send-email gitk \
	 git-gui git-citool; do \
	  rm -f '$(GIT)'-man/usr/share/man/man1/$$i*; \
	done

override_dh_installdocs-arch:
	dh_installdocs --arch -X.gitignore
	# These licenses are replaced with symlinks in git.links.
	diff -q '$(GIT)'/usr/share/doc/git/contrib/persistent-https/LICENSE /usr/share/common-licenses/Apache-2.0
	diff -bq '$(GIT)'/usr/share/doc/git/contrib/subtree/COPYING /usr/share/common-licenses/GPL-2
	rm -rf '$(GIT)'/usr/share/doc/git/contrib/completion
	rm -rf '$(GIT)'/usr/share/doc/git/contrib/emacs
	rm -rf '$(GIT)'/usr/share/doc/git/contrib/hooks
	rm -rf '$(GIT)'/usr/share/doc/git/contrib/mw-to-git
	rm -f '$(GIT)'/usr/share/doc/git/contrib/subtree/git-subtree.1
	rm -f '$(GIT)'/usr/share/doc/git/contrib/subtree/git-subtree.html
	rm -f '$(GIT)'/usr/share/doc/git/contrib/subtree/git-subtree.xml
	find '$(GIT)'/usr/share/doc/git/ -name .gitattributes | xargs rm -f
	find '$(GIT)'/usr/share/doc/git/ -name .gitignore | xargs rm -f

override_dh_installdocs-indep:
	dh_installdocs --indep -X.gitignore

override_dh_installchangelogs:
	dh_installchangelogs debian/changelog.upstream

override_dh_installinit:
	dh_installinit -pgit-daemon-sysvinit --name=git-daemon
	dh_installinit

# Skip dh_installemacsen to avoid having to rename
# /etc/emacs/site-start.d/50git-core.el to
# /etc/emacs/site-start.d/50git-el.el.
override_dh_installemacsen:

override_dh_compress:
	dh_compress -X.txt -Xcontrib