# -*- makefile -*-

dir := emacs
emacs_sources := \
	$(dir)/notmuch-lib.el \
	$(dir)/notmuch-compat.el \
	$(dir)/notmuch-parser.el \
	$(dir)/notmuch.el \
	$(dir)/notmuch-query.el \
	$(dir)/notmuch-show.el \
	$(dir)/notmuch-tree.el \
	$(dir)/notmuch-wash.el \
	$(dir)/notmuch-hello.el \
	$(dir)/notmuch-mua.el \
	$(dir)/notmuch-address.el \
	$(dir)/notmuch-maildir-fcc.el \
	$(dir)/notmuch-message.el \
	$(dir)/notmuch-crypto.el \
	$(dir)/notmuch-tag.el \
	$(dir)/coolj.el \
	$(dir)/notmuch-print.el \
	$(dir)/notmuch-version.el \
	$(dir)/notmuch-jump.el \
	$(dir)/notmuch-company.el \
	$(dir)/notmuch-draft.el

elpa_sources := ${emacs_sources} $(dir)/notmuch-pkg.el

$(dir)/notmuch-version.el: $(dir)/Makefile.local version.stamp
$(dir)/notmuch-version.el: $(srcdir)/$(dir)/notmuch-version.el.tmpl
	@sed -e 's/%AG%/Generated file (from $(<F)) -- do not edit!/' \
	     -e 's/%VERSION%/"$(VERSION)"/' $< > $@

$(dir)/notmuch-pkg.el: $(srcdir)/$(dir)/notmuch-pkg.el.tmpl
	@sed -e 's/%AG%/Generated file (from $(<F)) -- do not edit!/' \
	     -e 's/%VERSION%/"$(ELPA_VERSION)"/' $< > $@

all: $(dir)/notmuch-pkg.el
install-emacs: $(dir)/notmuch-pkg.el

emacs_mua := $(dir)/notmuch-emacs-mua
emacs_mua_desktop := $(dir)/notmuch-emacs-mua.desktop

emacs_images := \
	$(srcdir)/$(dir)/notmuch-logo.png

emacs_bytecode = $(emacs_sources:.el=.elc)

# Because of defmacro's and defsubst's, we have to account for load
# dependencies between Elisp files when byte compiling.  Otherwise,
# the byte compiler may load an old .elc file when processing a
# "require" or we may fail to rebuild a .elc that depended on a macro
# from an updated file.
ifeq ($(HAVE_EMACS),1)
$(dir)/.eldeps: $(dir)/Makefile.local $(dir)/make-deps.el $(emacs_sources)
	$(call quiet,EMACS) --directory emacs -batch -l make-deps.el \
		-f batch-make-deps $(emacs_sources) > $@.tmp && \
		mv $@.tmp $@
# We could include .eldeps directly, but that would cause a make
# restart whenever any .el file was modified, even if dependencies
# didn't change, because the mtime of .eldeps will change.  Instead,
# we include a second file, .eldeps.x, which we ensure always has the
# same content as .eldeps, but its mtime only changes when dependency
# information changes, in which case a make restart is necessary
# anyway.
$(dir)/.eldeps.x: $(dir)/.eldeps
	@cmp -s $^ $@ || cp $^ $@
-include $(dir)/.eldeps.x

# Add the one dependency make-deps.el does not have visibility to.
$(dir)/notmuch-lib.elc: $(dir)/notmuch-version.elc

endif
CLEAN+=$(dir)/.eldeps $(dir)/.eldeps.tmp $(dir)/.eldeps.x

ifeq ($(HAVE_EMACS),1)
%.elc: %.el $(global_deps)
	$(call quiet,EMACS) --directory emacs -batch -f batch-byte-compile $<
endif

elpa: $(ELPA_FILE)

ELPA_DIR=.elpa-build/notmuch-${ELPA_VERSION}
notmuch-emacs-%.tar: ${elpa_sources} build-info
	mkdir -p .elpa-build/notmuch-${ELPA_VERSION}
	cp ${elpa_sources} ${ELPA_DIR}
ifeq ($(HAVE_SPHINX)$(HAVE_MAKEINFO)$(HAVE_INSTALL_INFO),111)
	cp ${INFO_INFO_FILES} ${ELPA_DIR}
	for file in ${INFO_INFO_FILES}; do install-info $$file ${ELPA_DIR}/dir; done
endif
	tar -C .elpa-build -cf $@ notmuch-${ELPA_VERSION}
	rm -r .elpa-build

ifeq ($(WITH_EMACS),1)
ifeq ($(HAVE_EMACS),1)
all: $(emacs_bytecode)
install-emacs: $(emacs_bytecode)
endif

install: install-emacs
endif

.PHONY: install-emacs
install-emacs: $(emacs_sources) $(emacs_images)
	mkdir -p "$(DESTDIR)$(emacslispdir)"
	install -m0644 $(emacs_sources) "$(DESTDIR)$(emacslispdir)"
ifeq ($(HAVE_EMACS),1)
	install -m0644 $(emacs_bytecode) "$(DESTDIR)$(emacslispdir)"
endif
	mkdir -p "$(DESTDIR)$(emacsetcdir)"
	install -m0644 $(emacs_images) "$(DESTDIR)$(emacsetcdir)"
	mkdir -p "$(DESTDIR)$(prefix)/bin/"
ifeq ($(HAVE_BASH),1)
	sed "1s|^#!.*|#! $(BASH_ABSOLUTE)|" < $(emacs_mua) > $(DESTDIR)$(prefix)/bin/notmuch-emacs-mua
	chmod 755 $(DESTDIR)$(prefix)/bin/notmuch-emacs-mua
endif
ifeq ($(WITH_DESKTOP),1)
	mkdir -p "$(DESTDIR)$(desktop_dir)"
	desktop-file-install --mode 0644 --dir "$(DESTDIR)$(desktop_dir)" $(emacs_mua_desktop)
	-update-desktop-database "$(DESTDIR)$(desktop_dir)"
endif

CLEAN := $(CLEAN) $(emacs_bytecode) $(dir)/notmuch-version.el $(dir)/notmuch-pkg.el