ASCIIDOC = @ASCIIDOC@
ASCIIDOC_EXTRA =
MANPAGE_XSL = manpage-normal.xsl
XMLTO = @XMLTO@
XMLTO_EXTRA = -m manpage-bold-literal.xsl
GZIPCMD = @GZIP@
INSTALL = @INSTALL@
RM = @RM@
MV = @MV@
SED = @SED@
VERSION = $(shell $(SED) -n 's/.*PACKAGE_VERSION "\(.*\)"/\1/p'\
		  ../config.h)

# Guard against environment variables
MAN1_TXT =
MAN1_TXT += ss-local.asciidoc
MAN1_TXT += ss-manager.asciidoc
MAN1_TXT += ss-nat.asciidoc
MAN1_TXT += ss-redir.asciidoc
MAN1_TXT += ss-server.asciidoc
MAN1_TXT += ss-tunnel.asciidoc

MAN8_TXT =
MAN8_TXT += shadowsocks-libev.asciidoc

ifeq ($(DISABLE_DOCUMENTATION),1)
  MAN1_TXT =
  MAN8_TXT =
endif

MAN_TXT = $(MAN8_TXT) $(MAN1_TXT)
MAN_XML = $(patsubst %.asciidoc,%.xml,$(MAN_TXT))
MAN_HTML = $(patsubst %.asciidoc,%.html,$(MAN_TXT))

DOC_MAN1 = $(patsubst %.asciidoc,%.1,$(MAN1_TXT))
GZ_MAN1 = $(patsubst %.asciidoc,%.1.gz,$(MAN1_TXT))

DOC_MAN8 = $(patsubst %.asciidoc,%.8,$(MAN8_TXT))
GZ_MAN8 = $(patsubst %.asciidoc,%.8.gz,$(MAN8_TXT))

prefix = @prefix@
mandir ?= $(prefix)/share/man
man1dir = $(mandir)/man1
man8dir = $(mandir)/man8

ifneq ($(findstring $(MAKEFLAGS),s),s)
ifndef V
	QUIET_RM	= @
	QUIET_ASCIIDOC	= @echo "    [ASCII]  $@";
	QUIET_XMLTO	= @echo "    [XMLTO]  $@";
	QUIET_GZIP	= @echo "    [GZ]     $@";
	QUIET_STDERR	= 2> /dev/null
	QUIET_SUBDIR0	= +@subdir=
	QUIET_SUBDIR1	= ;$(NO_SUBDIR) echo '   ' SUBDIR $$subdir; \
			  $(MAKE) $(PRINT_DIR) -C $$subdir
	export V
endif
endif

all: man
man: man1 man8
man1: $(GZ_MAN1)
man8: $(GZ_MAN8)
html: $(MAN_HTML)

install: install-man

install-man: man
	$(INSTALL) -d -m 755 $(DESTDIR)$(man1dir)
	$(INSTALL) -d -m 755 $(DESTDIR)$(man8dir)
ifdef GZ_MAN1
	$(INSTALL) -m 644 $(GZ_MAN1) $(DESTDIR)$(man1dir)
endif
ifdef GZ_MAN8
	$(INSTALL) -m 644 $(GZ_MAN8) $(DESTDIR)$(man8dir)
endif

clean:
	$(QUIET_RM)$(RM) -f *.xml *.xml+ *.1 *.1.gz *.8 *.8.gz *.html

%.1.gz : %.1
	$(QUIET_GZIP)$(GZIPCMD) -n -c $< > $@

%.8.gz : %.8
	$(QUIET_GZIP)$(GZIPCMD) -n -c $< > $@

%.1 : %.xml
	$(QUIET_XMLTO)$(RM) -f $@ && \
	$(XMLTO) -m $(MANPAGE_XSL) $(XMLTO_EXTRA) man $<

%.8 : %.xml
	$(QUIET_XMLTO)$(RM) -f $@ && \
	$(XMLTO) -m $(MANPAGE_XSL) $(XMLTO_EXTRA) man $<

%.xml : %.asciidoc asciidoc.conf
	$(QUIET_ASCIIDOC)$(RM) -f $@+ $@ && \
	$(ASCIIDOC) -b docbook -d manpage -f asciidoc.conf \
	    -aversion=$(VERSION) $(ASCIIDOC_EXTRA) -o $@+ $< && \
	$(MV) $@+ $@

%.html : %.asciidoc asciidoc.conf
	$(QUIET_ASCIIDOC)$(RM) -f $@+ $@ && \
	$(ASCIIDOC) -b html -d article -f asciidoc.conf \
		-aversion=$(VERSION) $(ASCIIDOC_EXTRA) -o $@+ $< && \
	$(MV) $@+ $@